From 652f63e63e51c90e115ceadc543ebbe0686ba70c Mon Sep 17 00:00:00 2001 From: Andrius Druzinis-Vitkus Date: Wed, 19 Apr 2017 18:00:22 +0200 Subject: [PATCH 01/46] add ability to specify custom rotation anchor point --- dist/L.Path.Transform-src.js | 19 +++++++++++++++---- dist/L.Path.Transform.js | 4 ++-- src/Path.Transform.js | 19 +++++++++++++++---- 3 files changed, 32 insertions(+), 10 deletions(-) diff --git a/dist/L.Path.Transform-src.js b/dist/L.Path.Transform-src.js index 8923172..cc2e91c 100644 --- a/dist/L.Path.Transform-src.js +++ b/dist/L.Path.Transform-src.js @@ -867,6 +867,7 @@ L.Handler.PathTransform = L.Handler.extend({ options: { rotation: true, + rotationAnchor: null, scaling: true, uniformScaling: true, maxZoom: 22, @@ -1149,12 +1150,14 @@ L.Handler.PathTransform = L.Handler.extend({ this._path._transform(null); this._rect._transform(null); - this._transformPoints(this._path); - this._transformPoints(this._rect); - if (this.options.rotation) { this._handleLine._transform(null); - this._transformPoints(this._handleLine, this._angle, null, this._origin); + this._transformPoints(this._path, this._angle, null, this.options.rotationAnchor); + this._transformPoints(this._rect, this._angle, null, this.options.rotationAnchor); + this._transformPoints(this._handleLine, this._angle, null, this.options.rotationAnchor); + } else { + this._transformPoints(this._path); + this._transformPoints(this._rect); } }, @@ -1322,6 +1325,14 @@ L.Handler.PathTransform = L.Handler.extend({ * @return {L.LatLng} */ _getRotationOrigin: function() { + if (this.options.rotationAnchor) { + var anchor = this.options.rotationAnchor; + if (anchor.constructor === Array && anchor.length >= 2) { + return new L.LatLng(anchor[0], anchor[1]); + } else if (anchor instanceof L.LatLng) { + return anchor; + } + } var latlngs = this._rect._latlngs[0]; var lb = latlngs[0]; var rt = latlngs[2]; diff --git a/dist/L.Path.Transform.js b/dist/L.Path.Transform.js index c62c8a1..1a96412 100644 --- a/dist/L.Path.Transform.js +++ b/dist/L.Path.Transform.js @@ -3,11 +3,11 @@ * @author Alexander Milevski * @preserve */ -L.Path.include({_transform:function(t){if(this._renderer){if(t){this._renderer.transformPath(this,t)}else{this._renderer._resetTransformPath(this);this._update()}}return this},_onMouseClick:function(t){if(this.dragging&&this.dragging.moved()||this._map.dragging&&this._map.dragging.moved()){return}this._fireMouseEvent(t)}});L.Handler.PathDrag=L.Handler.extend({statics:{DRAGGING_CLS:"leaflet-path-draggable"},initialize:function(t){this._path=t;this._matrix=null;this._startPoint=null;this._dragStartPoint=null;this._mapDraggingWasEnabled=false},addHooks:function(){this._path.on("mousedown",this._onDragStart,this);this._path.options.className=this._path.options.className?this._path.options.className+" "+L.Handler.PathDrag.DRAGGING_CLS:L.Handler.PathDrag.DRAGGING_CLS;if(this._path._path){L.DomUtil.addClass(this._path._path,L.Handler.PathDrag.DRAGGING_CLS)}},removeHooks:function(){this._path.off("mousedown",this._onDragStart,this);this._path.options.className=this._path.options.className.replace(new RegExp("\\s+"+L.Handler.PathDrag.DRAGGING_CLS),"");if(this._path._path){L.DomUtil.removeClass(this._path._path,L.Handler.PathDrag.DRAGGING_CLS)}},moved:function(){return this._path._dragMoved},_onDragStart:function(t){var i=t.originalEvent._simulated?"touchstart":t.originalEvent.type;this._mapDraggingWasEnabled=false;this._startPoint=t.containerPoint.clone();this._dragStartPoint=t.containerPoint.clone();this._matrix=[1,0,0,1,0,0];L.DomEvent.stop(t.originalEvent);L.DomUtil.addClass(this._path._renderer._container,"leaflet-interactive");L.DomEvent.on(document,L.Draggable.MOVE[i],this._onDrag,this).on(document,L.Draggable.END[i],this._onDragEnd,this);if(this._path._map.dragging.enabled()){this._path._map.dragging.disable();this._mapDraggingWasEnabled=true}this._path._dragMoved=false;if(this._path._popup){this._path._popup._close()}this._replaceCoordGetters(t)},_onDrag:function(t){L.DomEvent.stop(t);var i=t.touches&&t.touches.length>=1?t.touches[0]:t;var a=this._path._map.mouseEventToContainerPoint(i);if(t.type==="touchmove"&&!this._path._dragMoved){var n=this._dragStartPoint.distanceTo(a);if(n<=this._path._map.options.tapTolerance){return}}var r=a.x;var e=a.y;var s=r-this._startPoint.x;var o=e-this._startPoint.y;if(s||o){if(!this._path._dragMoved){this._path._dragMoved=true;this._path.fire("dragstart",t);this._path.bringToFront()}this._matrix[4]+=s;this._matrix[5]+=o;this._startPoint.x=r;this._startPoint.y=e;this._path.fire("predrag",t);this._path._transform(this._matrix);this._path.fire("drag",t)}},_onDragEnd:function(t){var i=this._path._map.mouseEventToContainerPoint(t);var a=this.moved();if(a){this._transformPoints(this._matrix);this._path._updatePath();this._path._project();this._path._transform(null);L.DomEvent.stop(t)}L.DomEvent.off(document,"mousemove touchmove",this._onDrag,this).off(document,"mouseup touchend",this._onDragEnd,this);this._restoreCoordGetters();if(a){this._path.fire("dragend",{distance:Math.sqrt(L.LineUtil._sqDist(this._dragStartPoint,i))});var n=this._path._containsPoint;this._path._containsPoint=L.Util.falseFn;L.Util.requestAnimFrame(function(){L.DomEvent._skipped({type:"click"});this._path._containsPoint=n},this)}this._matrix=null;this._startPoint=null;this._dragStartPoint=null;this._path._dragMoved=false;if(this._mapDraggingWasEnabled){if(a)L.DomEvent._fakeStop({type:"click"});this._path._map.dragging.enable()}},_transformPoints:function(t,i){var a=this._path;var n,r,e;var s=L.point(t[4],t[5]);var o=a._map.options.crs;var h=o.transformation;var _=o.scale(a._map.getZoom());var l=o.projection;var d=h.untransform(s,_).subtract(h.untransform(L.point(0,0),_));var p=!i;a._bounds=new L.LatLngBounds;if(a._point){i=l.unproject(l.project(a._latlng)._add(d));if(p){a._latlng=i;a._point._add(s)}}else if(a._rings||a._parts){var g=a._rings||a._parts;var f=a._latlngs;i=i||f;if(!L.Util.isArray(f[0])){f=[f];i=[i]}for(n=0,r=g.length;n=1?t.touches[0]:t;var a=this._path._map.mouseEventToContainerPoint(i);if(t.type==="touchmove"&&!this._path._dragMoved){var n=this._dragStartPoint.distanceTo(a);if(n<=this._path._map.options.tapTolerance){return}}var r=a.x;var s=a.y;var e=r-this._startPoint.x;var o=s-this._startPoint.y;if(e||o){if(!this._path._dragMoved){this._path._dragMoved=true;this._path.fire("dragstart",t);this._path.bringToFront()}this._matrix[4]+=e;this._matrix[5]+=o;this._startPoint.x=r;this._startPoint.y=s;this._path.fire("predrag",t);this._path._transform(this._matrix);this._path.fire("drag",t)}},_onDragEnd:function(t){var i=this._path._map.mouseEventToContainerPoint(t);var a=this.moved();if(a){this._transformPoints(this._matrix);this._path._updatePath();this._path._project();this._path._transform(null);L.DomEvent.stop(t)}L.DomEvent.off(document,"mousemove touchmove",this._onDrag,this).off(document,"mouseup touchend",this._onDragEnd,this);this._restoreCoordGetters();if(a){this._path.fire("dragend",{distance:Math.sqrt(L.LineUtil._sqDist(this._dragStartPoint,i))});var n=this._path._containsPoint;this._path._containsPoint=L.Util.falseFn;L.Util.requestAnimFrame(function(){L.DomEvent._skipped({type:"click"});this._path._containsPoint=n},this)}this._matrix=null;this._startPoint=null;this._dragStartPoint=null;this._path._dragMoved=false;if(this._mapDraggingWasEnabled){if(a)L.DomEvent._fakeStop({type:"click"});this._path._map.dragging.enable()}},_transformPoints:function(t,i){var a=this._path;var n,r,s;var e=L.point(t[4],t[5]);var o=a._map.options.crs;var h=o.transformation;var _=o.scale(a._map.getZoom());var l=o.projection;var p=h.untransform(e,_).subtract(h.untransform(L.point(0,0),_));var d=!i;a._bounds=new L.LatLngBounds;if(a._point){i=l.unproject(l.project(a._latlng)._add(p));if(d){a._latlng=i;a._point._add(e)}}else if(a._rings||a._parts){var g=a._rings||a._parts;var f=a._latlngs;i=i||f;if(!L.Util.isArray(f[0])){f=[f];i=[i]}for(n=0,r=g.length;n * @license MIT * @preserve */ -L.LineUtil.pointOnLine=function(t,i,a){var n=1+a/t.distanceTo(i);return new L.Point(t.x+(i.x-t.x)*n,t.y+(i.y-t.y)*n)};L.Util.merge=function(){var t=1;var i,a;var n=arguments[t];function r(t){return Object.prototype.toString.call(t)==="[object Object]"}var e=arguments[0];while(n){n=arguments[t++];for(i in n){if(!n.hasOwnProperty(i)){continue}a=n[i];if(r(a)&&r(e[i])){e[i]=L.Util.merge(e[i],a)}else{e[i]=a}}}return e};L.Matrix=function(t,i,a,n,r,e){this._matrix=[t,i,a,n,r,e]};L.Matrix.prototype={transform:function(t){return this._transform(t.clone())},_transform:function(t){var i=this._matrix;var a=t.x,n=t.y;t.x=i[0]*a+i[1]*n+i[4];t.y=i[2]*a+i[3]*n+i[5];return t},untransform:function(t){var i=this._matrix;return new L.Point((t.x/i[0]-i[4])/i[0],(t.y/i[2]-i[5])/i[2])},clone:function(){var t=this._matrix;return new L.Matrix(t[0],t[1],t[2],t[3],t[4],t[5])},translate:function(t){if(t===undefined){return new L.Point(this._matrix[4],this._matrix[5])}var i,a;if(typeof t==="number"){i=a=t}else{i=t.x;a=t.y}return this._add(1,0,0,1,i,a)},scale:function(t,i){if(t===undefined){return new L.Point(this._matrix[0],this._matrix[3])}var a,n;i=i||L.point(0,0);if(typeof t==="number"){a=n=t}else{a=t.x;n=t.y}return this._add(a,0,0,n,i.x,i.y)._add(1,0,0,1,-i.x,-i.y)},rotate:function(t,i){var a=Math.cos(t);var n=Math.sin(t);i=i||new L.Point(0,0);return this._add(a,n,-n,a,i.x,i.y)._add(1,0,0,1,-i.x,-i.y)},flip:function(){this._matrix[1]*=-1;this._matrix[2]*=-1;return this},_add:function(t,i,a,n,r,e){var s=[[],[],[]];var o=this._matrix;var h=[[o[0],o[2],o[4]],[o[1],o[3],o[5]],[0,0,1]];var _=[[t,a,r],[i,n,e],[0,0,1]],l;if(t&&t instanceof L.Matrix){o=t._matrix;_=[[o[0],o[2],o[4]],[o[1],o[3],o[5]],[0,0,1]]}for(var d=0;d<3;d++){for(var p=0;p<3;p++){l=0;for(var g=0;g<3;g++){l+=h[d][g]*_[g][p]}s[d][p]=l}}this._matrix=[s[0][0],s[1][0],s[0][1],s[1][1],s[0][2],s[1][2]];return this}};L.matrix=function(t,i,a,n,r,e){return new L.Matrix(t,i,a,n,r,e)};L.PathTransform={};L.PathTransform.Handle=L.CircleMarker.extend({options:{className:"leaflet-path-transform-handler"},onAdd:function(t){L.CircleMarker.prototype.onAdd.call(this,t);if(this._path&&this.options.setCursor){this._path.style.cursor=L.PathTransform.Handle.CursorsByType[this.options.index]}}});L.PathTransform.Handle.CursorsByType=["nesw-resize","nwse-resize","nesw-resize","nwse-resize"];L.PathTransform.RotateHandle=L.PathTransform.Handle.extend({options:{className:"leaflet-path-transform-handler transform-handler--rotate"},onAdd:function(t){L.CircleMarker.prototype.onAdd.call(this,t);if(this._path&&this.options.setCursor){this._path.style.cursor="all-scroll"}}});L.Handler.PathTransform=L.Handler.extend({options:{rotation:true,scaling:true,uniformScaling:true,maxZoom:22,handlerOptions:{radius:5,fillColor:"#ffffff",color:"#202020",fillOpacity:1,weight:2,opacity:.7,setCursor:true},boundsOptions:{weight:1,opacity:1,dashArray:[3,3],fill:false},rotateHandleOptions:{weight:1,opacity:1,setCursor:true},handleLength:20,edgesCount:4,handleClass:L.PathTransform.Handle,rotateHandleClass:L.PathTransform.RotateHandle},initialize:function(t){this._path=t;this._map=null;this._activeMarker=null;this._originMarker=null;this._rotationMarker=null;this._rotationOrigin=null;this._scaleOrigin=null;this._angle=0;this._scale=L.point(1,1);this._initialDist=0;this._initialDistX=0;this._initialDistY=0;this._rotationStart=null;this._rotationOriginPt=null;this._matrix=new L.Matrix(1,0,0,1,0,0);this._projectedMatrix=new L.Matrix(1,0,0,1,0,0);this._handlersGroup=null;this._rect=null;this._handlers=[];this._handleLine=null},enable:function(t){if(this._path._map){this._map=this._path._map;if(t){this.setOptions(t)}L.Handler.prototype.enable.call(this)}},addHooks:function(){this._createHandlers();this._path.on("dragstart",this._onDragStart,this).on("dragend",this._onDragEnd,this)},removeHooks:function(){this._hideHandlers();this._path.off("dragstart",this._onDragStart,this).off("dragend",this._onDragEnd,this);this._handlersGroup=null;this._rect=null;this._handlers=[]},setOptions:function(t){var i=this._enabled;if(i){this.disable()}this.options=L.Util.merge({},L.Handler.PathTransform.prototype.options,t);if(i){this.enable()}return this},rotate:function(t,i){return this.transform(t,null,i)},scale:function(t,i){if(typeof t==="number"){t=L.point(t,t)}return this.transform(0,t,null,i)},transform:function(t,i,a,n){var r=this._path.getCenter();a=a||r;n=n||r;this._map=this._path._map;this._transformPoints(this._path,t,i,a,n);return this},_update:function(){var t=this._matrix;for(var i=0,a=this._handlers.length;i=0;i--){t.removeLayer(this._handlers[i])}this._createHandlers()},_transformGeometries:function(){this._path._transform(null);this._rect._transform(null);this._transformPoints(this._path);this._transformPoints(this._rect);if(this.options.rotation){this._handleLine._transform(null);this._transformPoints(this._handleLine,this._angle,null,this._origin)}},_getProjectedMatrix:function(t,i,a,n){var r=this._map;var e=r.getMaxZoom()||this.options.maxZoom;var s=L.matrix(1,0,0,1,0,0);var o;t=t||this._angle||0;i=i||this._scale||L.point(1,1);if(!(i.x===1&&i.y===1)){n=n||this._scaleOrigin;o=r.project(n,e);s=s._add(L.matrix(1,0,0,1,o.x,o.y))._add(L.matrix(i.x,0,0,i.y,0,0))._add(L.matrix(1,0,0,1,-o.x,-o.y))}if(t){a=a||this._rotationOrigin;o=r.project(a,e);s=s.rotate(t,o).flip()}return s},_transformPoint:function(t,i,a,n){return a.unproject(i.transform(a.project(t,n)),n)},_transformPoints:function(t,i,a,n,r){var e=t._map;var s=e.getMaxZoom()||this.options.maxZoom;var o,h;var _=this._projectedMatrix=this._getProjectedMatrix(i,a,n,r);if(t._point){t._latlng=this._transformPoint(t._latlng,_,e,s)}else if(t._rings||t._parts){var l=t._rings;var d=t._latlngs;t._bounds=new L.LatLngBounds;if(!L.Util.isArray(d[0])){d=[d]}for(o=0,h=l.length;o=0;i--){t.removeLayer(this._handlers[i])}this._createHandlers()},_transformGeometries:function(){this._path._transform(null);this._rect._transform(null);if(this.options.rotation){this._handleLine._transform(null);this._transformPoints(this._path,this._angle,null,this.options.rotationAnchor);this._transformPoints(this._rect,this._angle,null,this.options.rotationAnchor);this._transformPoints(this._handleLine,this._angle,null,this.options.rotationAnchor)}else{this._transformPoints(this._path);this._transformPoints(this._rect)}},_getProjectedMatrix:function(t,i,a,n){var r=this._map;var s=r.getMaxZoom()||this.options.maxZoom;var e=L.matrix(1,0,0,1,0,0);var o;t=t||this._angle||0;i=i||this._scale||L.point(1,1);if(!(i.x===1&&i.y===1)){n=n||this._scaleOrigin;o=r.project(n,s);e=e._add(L.matrix(1,0,0,1,o.x,o.y))._add(L.matrix(i.x,0,0,i.y,0,0))._add(L.matrix(1,0,0,1,-o.x,-o.y))}if(t){a=a||this._rotationOrigin;o=r.project(a,s);e=e.rotate(t,o).flip()}return e},_transformPoint:function(t,i,a,n){return a.unproject(i.transform(a.project(t,n)),n)},_transformPoints:function(t,i,a,n,r){var s=t._map;var e=s.getMaxZoom()||this.options.maxZoom;var o,h;var _=this._projectedMatrix=this._getProjectedMatrix(i,a,n,r);if(t._point){t._latlng=this._transformPoint(t._latlng,_,s,e)}else if(t._rings||t._parts){var l=t._rings;var p=t._latlngs;t._bounds=new L.LatLngBounds;if(!L.Util.isArray(p[0])){p=[p]}for(o=0,h=l.length;o=2){return new L.LatLng(t[0],t[1])}else if(t instanceof L.LatLng){return t}}var i=this._rect._latlngs[0];var a=i[0];var n=i[2];return new L.LatLng((a.lat+n.lat)/2,(a.lng+n.lng)/2)},_onRotateStart:function(t){var i=this._map;i.dragging.disable();this._originMarker=null;this._rotationOriginPt=i.latLngToLayerPoint(this._getRotationOrigin());this._rotationStart=t.layerPoint;this._initialMatrix=this._matrix.clone();this._angle=0;this._path._map.on("mousemove",this._onRotate,this).on("mouseup",this._onRotateEnd,this);this._cachePoints();this._path.fire("transformstart",{layer:this._path}).fire("rotatestart",{layer:this._path,rotation:0})},_onRotate:function(t){var i=t.layerPoint;var a=this._rotationStart;var n=this._rotationOriginPt;this._angle=Math.atan2(i.y-n.y,i.x-n.x)-Math.atan2(a.y-n.y,a.x-n.x);this._matrix=this._initialMatrix.clone().rotate(this._angle,n).flip();this._update();this._path.fire("rotate",{layer:this._path,rotation:this._angle})},_onRotateEnd:function(t){this._path._map.off("mousemove",this._onRotate,this).off("mouseup",this._onRotateEnd,this);this._apply();this._path.fire("rotateend",{layer:this._path,rotation:this._angle})},_onScaleStart:function(t){var i=t.target;var a=this._map;a.dragging.disable();this._activeMarker=i;this._originMarker=this._handlers[(i.options.index+2)%4];this._scaleOrigin=this._originMarker.getLatLng();this._initialMatrix=this._matrix.clone();this._cachePoints();this._map.on("mousemove",this._onScale,this).on("mouseup",this._onScaleEnd,this);this._initialDist=this._originMarker._point.distanceTo(this._activeMarker._point);this._initialDistX=this._originMarker._point.x-this._activeMarker._point.x;this._initialDistY=this._originMarker._point.y-this._activeMarker._point.y;this._path.fire("transformstart",{layer:this._path}).fire("scalestart",{layer:this._path,scale:L.point(1,1)});this._map.removeLayer(this._handleLine);this._map.removeLayer(this._rotationMarker)},_onScale:function(t){var i=this._originMarker._point;var a,n;if(this.options.uniformScaling){a=i.distanceTo(t.layerPoint)/this._initialDist;n=a}else{a=(i.x-t.layerPoint.x)/this._initialDistX;n=(i.y-t.layerPoint.y)/this._initialDistY}this._scale=new L.Point(a,n);this._matrix=this._initialMatrix.clone().scale(this._scale,i);this._update();this._path.fire("scale",{layer:this._path,scale:this._scale.clone()})},_onScaleEnd:function(t){this._map.off("mousemove",this._onScale,this).off("mouseup",this._onScaleEnd,this);this._map.addLayer(this._handleLine);this._map.addLayer(this._rotationMarker);this._apply();this._path.fire("scaleend",{layer:this._path,scale:this._scale.clone()})},_cachePoints:function(){this._handlersGroup.eachLayer(function(t){t.bringToFront()});for(var t=0,i=this._handlers.length;t= 2) { + return new L.LatLng(anchor[0], anchor[1]); + } else if (anchor instanceof L.LatLng) { + return anchor; + } + } var latlngs = this._rect._latlngs[0]; var lb = latlngs[0]; var rt = latlngs[2]; From f50bac9ea2da152f774144c9bd159c777d9269b4 Mon Sep 17 00:00:00 2001 From: Eero Kirjavainen Date: Sun, 4 Jun 2017 12:05:53 +0300 Subject: [PATCH 02/46] Safe removal of rotation handlers - skip removing handleline and rotationmarker if they are not defined (rotation is disabled) --- example/js/bundle.js | 2557 +++++++++++++++++++++-------------------- src/Path.Transform.js | 9 +- 2 files changed, 1288 insertions(+), 1278 deletions(-) diff --git a/example/js/bundle.js b/example/js/bundle.js index 342e707..9060ab8 100644 --- a/example/js/bundle.js +++ b/example/js/bundle.js @@ -1,262 +1,262 @@ (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;oOSM contributors' -}).addTo(map); - -//////////////////////////////////////////////////////////////////////////////// -function interpolateArr(array, insert) { - var res = []; - array.forEach(function(p, i, arr) { - res.push(p.concat()); - - if (i < arr.length - 1) { - var diff = [arr[i + 1][0] - p[0], arr[i + 1][1] - p[1]]; - for (var i = 1; i < insert; i++) { - res.push([p[0] + (diff[0] * i) / insert, p[1] + (diff[1] * i) / insert]); - } - } - }); - - return res; -} - -//////////////////////////////////////////////////////////////////////////////// -var polygon = global.polygon = new L.Polygon( - L.GeoJSON.coordsToLatLngs( - - // ~ 13 000 points - interpolateArr([ - [113.97697448730469, 22.403410892712124], - [113.98658752441405, 22.38373008592495], - [114.01268005371094, 22.369126397545887], - [114.02778625488281, 22.38563480185718], - [114.04701232910156, 22.395157990290755], - [114.06005859375, 22.413567638369805], - [114.06280517578125, 22.432609534876796], - [114.04838562011717, 22.444668051657157], - [114.04289245605469, 22.44847578656544], - [114.03259277343749, 22.444668051657157], - [114.01954650878906, 22.447206553211814], - [113.99620056152344, 22.436417600763114], - [113.98178100585938, 22.420549970290875], - [113.97697448730469, 22.403410892712124] - ], 1000) - ), { - color: '#f00', - interactive: true, - draggable: true, - transform: true - }).addTo(map); -//polygon.transform.enable(); - -var polyline = global.polyline = new L.Polyline( - L.GeoJSON.coordsToLatLngs([ - [114.14314270019531, 22.49479484975443], - [114.1534423828125, 22.485912942320958], - [114.15206909179688, 22.4732235144781], - [114.14932250976561, 22.459898363943893], - [114.15962219238281, 22.447206553211814], - [114.169921875, 22.447206553211814], - [114.19395446777344, 22.459898363943893], - [114.20631408691406, 22.46116748110935], - [114.21180725097655, 22.473858013487614], - [114.22416687011719, 22.471320000009992], - [114.23721313476562, 22.476395980457973], - [114.24201965332031, 22.49352604073722], - [114.2303466796875, 22.51572851830351], - [114.21798706054688, 22.524608511026262], - [114.20768737792969, 22.524608511026262], - [114.20768737792969, 22.536024805886974] - ]), { - weight: 15, - draggable: true, - transform: true - }) - .bindPopup("L.Polyline") - .addTo(map); -// polyline.transform.enable(); - - -var polygonWithHole = global.polygonWithHole = new L.Polygon( - [ - L.GeoJSON.coordsToLatLngs([ - [114.2749786376953, 22.412932863517717], - [114.28390502929688, 22.40087159030595], - [114.29008483886717, 22.38880927045556], - [114.30107116699219, 22.382460260815716], - [114.31892395019531, 22.391983666602783], - [114.32304382324219, 22.380555501421533], - [114.34295654296875, 22.372936203113838], - [114.334716796875, 22.384364994133303], - [114.33059692382812, 22.393888269511194], - [114.32167053222655, 22.40087159030595], - [114.32785034179688, 22.413567638369805], - [114.33197021484375, 22.42499308964722], - [114.32579040527344, 22.430705462748918], - [114.33197021484375, 22.43959090917266], - [114.33746337890624, 22.449110398886106], - [114.33540344238281, 22.461802035333992], - [114.32510375976562, 22.464340223177118], - [114.32922363281249, 22.472589012561954], - [114.32373046875, 22.477030464933307], - [114.31961059570312, 22.478933900916928], - [114.3017578125, 22.466243833549445], - [114.30244445800781, 22.457360094750083], - [114.29283142089844, 22.454821779075832], - [114.28390502929688, 22.45101421842269], - [114.2749786376953, 22.442764145001707], - [114.29077148437499, 22.428166659279615], - [114.27703857421875, 22.420549970290875], - [114.2749786376953, 22.412932863517717] - ]), - L.GeoJSON.coordsToLatLngs([ - [114.30107116699219, 22.43387890178297], - [114.29351806640625, 22.414202410321302], - [114.30587768554686, 22.408489358342635], - [114.32235717773438, 22.421184710331858], - [114.30107116699219, 22.43387890178297] - ]) - ], { - draggable: true, - transform: true - } - ) - .addTo(map); -//polygonWithHole.transform.enable(); - -var multiPolygon = global.multiPolygon = new L.Polygon([ - L.GeoJSON.coordsToLatLngs([ - [114.20562744140625, 22.32085984100593], - [114.21592712402344, 22.35261603551215], - [114.26467895507812, 22.351345926606957], - [114.2749786376953, 22.32403578584038], - [114.29214477539062, 22.32721165838893], - [114.3017578125, 22.311966810977616], - [114.29420471191406, 22.291002427735325], - [114.29351806640625, 22.272576585413475], - [114.28390502929688, 22.26177410097435], - [114.268798828125, 22.281472122783818], - [114.2749786376953, 22.294814367780518], - [114.26948547363281, 22.30243793590448], - [114.27017211914062, 22.31514295816939], - [114.2578125, 22.311966810977616], - [114.24751281738281, 22.299896792751927], - [114.24545288085938, 22.291002427735325], - [114.22966003417969, 22.307520083522476], - [114.22073364257812, 22.305614299837046], - [114.20562744140625, 22.32085984100593] - ]), - L.GeoJSON.coordsToLatLngs([ - [114.31549072265625, 22.33927931468312], - [114.32029724121094, 22.326576489662482], - [114.32991027832031, 22.326576489662482], - [114.33334350585938, 22.332292904091716], - [114.32304382324219, 22.3424548401465], - [114.31549072265625, 22.33927931468312] - ]), - L.GeoJSON.coordsToLatLngs([ - [114.27909851074219, 22.244615500323064], - [114.28115844726562, 22.251606295132948], - [114.28665161132812, 22.255419308858556], - [114.29969787597656, 22.26113863474449], - [114.2962646484375, 22.250970782750866], - [114.29489135742188, 22.24080219246335], - [114.29008483886717, 22.238895499613232], - [114.27909851074219, 22.244615500323064] - ]) -], { - draggable: true, - transform: true, - color: '#092' -}).bindPopup('MultiPolygon').addTo(map); -//multiPolygon.transform.enable(); - -var multiPolyline = global.multiPolyline = new L.Polyline([ - L.GeoJSON.coordsToLatLngs([ - [113.89869689941406, 22.399601921706953], - [113.89801025390625, 22.422454181709707], - [113.90350341796875, 22.43324421978117], - [113.90968322753906, 22.449110398886106], - [113.90693664550781, 22.478299425162852], - [113.9234161376953, 22.488450688325408], - [113.9337158203125, 22.483375149789623], - [113.9447021484375, 22.492257220085193], - [113.95225524902344, 22.51255695405145] - ]), - - L.GeoJSON.coordsToLatLngs([ - [113.8677978515625, 22.39261853713738], - [113.86917114257811, 22.42753195115699], - [113.9234161376953, 22.462436586653148], - [113.94813537597656, 22.473858013487614], - [113.9783477783203, 22.49923558968306], - [113.99688720703125, 22.51192263246886], - [114.01336669921875, 22.501138720300254], - [114.02503967285155, 22.508116641853675] - ]) -], { - draggable: true, - transform: true, - color: '#e90' -}).bindPopup('MultiPolyline').addTo(map); -// multiPolyline.transform.enable(); - -var layers = [polygon, polyline, multiPolyline, multiPolygon, polygonWithHole]; - -function update() { - L.Util.requestAnimFrame(function() { - var dragging = document.querySelector('#dragging').checked; - var scaling = document.querySelector('#scaling').checked; - var rotation = document.querySelector('#rotation').checked; - var uniform = document.querySelector('#uniform').checked; - - layers.forEach(function(layer) { - - if (layer.dragging) { - layer.dragging[dragging ? 'enable': 'disable'](); - } else { - layer.eachLayer(function(sublayer) { - sublayer.dragging[dragging ? 'enable': 'disable'](); - }); - } - - - layer.transform.setOptions({ - scaling: scaling, - rotation: rotation, - uniformScaling: uniform - }).enable(); - }); - }); -} - -[].slice.call(document.querySelectorAll('input[type=checkbox]')) -.forEach(function(checkbox) { - L.DomEvent.on(checkbox, 'change', update); -}); - -update(); +var L = require('leaflet'); +var DragHandler = require('../../index'); + +L.Icon.Default.imagePath = "http://cdn.leafletjs.com/leaflet-0.7/images"; + +//////////////////////////////////////////////////////////////////////////////// +var map = global.map = new L.Map('map', { + // crs: L.CRS.EPSG4326 // that was tested as well +}).setView([22.42658, 114.1952], 11); + +L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', { + attribution: '© ' + + 'OSM contributors' +}).addTo(map); + +//////////////////////////////////////////////////////////////////////////////// +function interpolateArr(array, insert) { + var res = []; + array.forEach(function(p, i, arr) { + res.push(p.concat()); + + if (i < arr.length - 1) { + var diff = [arr[i + 1][0] - p[0], arr[i + 1][1] - p[1]]; + for (var i = 1; i < insert; i++) { + res.push([p[0] + (diff[0] * i) / insert, p[1] + (diff[1] * i) / insert]); + } + } + }); + + return res; +} + +//////////////////////////////////////////////////////////////////////////////// +var polygon = global.polygon = new L.Polygon( + L.GeoJSON.coordsToLatLngs( + + // ~ 13 000 points + interpolateArr([ + [113.97697448730469, 22.403410892712124], + [113.98658752441405, 22.38373008592495], + [114.01268005371094, 22.369126397545887], + [114.02778625488281, 22.38563480185718], + [114.04701232910156, 22.395157990290755], + [114.06005859375, 22.413567638369805], + [114.06280517578125, 22.432609534876796], + [114.04838562011717, 22.444668051657157], + [114.04289245605469, 22.44847578656544], + [114.03259277343749, 22.444668051657157], + [114.01954650878906, 22.447206553211814], + [113.99620056152344, 22.436417600763114], + [113.98178100585938, 22.420549970290875], + [113.97697448730469, 22.403410892712124] + ], 1000) + ), { + color: '#f00', + interactive: true, + draggable: true, + transform: true + }).addTo(map); +//polygon.transform.enable(); + +var polyline = global.polyline = new L.Polyline( + L.GeoJSON.coordsToLatLngs([ + [114.14314270019531, 22.49479484975443], + [114.1534423828125, 22.485912942320958], + [114.15206909179688, 22.4732235144781], + [114.14932250976561, 22.459898363943893], + [114.15962219238281, 22.447206553211814], + [114.169921875, 22.447206553211814], + [114.19395446777344, 22.459898363943893], + [114.20631408691406, 22.46116748110935], + [114.21180725097655, 22.473858013487614], + [114.22416687011719, 22.471320000009992], + [114.23721313476562, 22.476395980457973], + [114.24201965332031, 22.49352604073722], + [114.2303466796875, 22.51572851830351], + [114.21798706054688, 22.524608511026262], + [114.20768737792969, 22.524608511026262], + [114.20768737792969, 22.536024805886974] + ]), { + weight: 15, + draggable: true, + transform: true + }) + .bindPopup("L.Polyline") + .addTo(map); +// polyline.transform.enable(); + + +var polygonWithHole = global.polygonWithHole = new L.Polygon( + [ + L.GeoJSON.coordsToLatLngs([ + [114.2749786376953, 22.412932863517717], + [114.28390502929688, 22.40087159030595], + [114.29008483886717, 22.38880927045556], + [114.30107116699219, 22.382460260815716], + [114.31892395019531, 22.391983666602783], + [114.32304382324219, 22.380555501421533], + [114.34295654296875, 22.372936203113838], + [114.334716796875, 22.384364994133303], + [114.33059692382812, 22.393888269511194], + [114.32167053222655, 22.40087159030595], + [114.32785034179688, 22.413567638369805], + [114.33197021484375, 22.42499308964722], + [114.32579040527344, 22.430705462748918], + [114.33197021484375, 22.43959090917266], + [114.33746337890624, 22.449110398886106], + [114.33540344238281, 22.461802035333992], + [114.32510375976562, 22.464340223177118], + [114.32922363281249, 22.472589012561954], + [114.32373046875, 22.477030464933307], + [114.31961059570312, 22.478933900916928], + [114.3017578125, 22.466243833549445], + [114.30244445800781, 22.457360094750083], + [114.29283142089844, 22.454821779075832], + [114.28390502929688, 22.45101421842269], + [114.2749786376953, 22.442764145001707], + [114.29077148437499, 22.428166659279615], + [114.27703857421875, 22.420549970290875], + [114.2749786376953, 22.412932863517717] + ]), + L.GeoJSON.coordsToLatLngs([ + [114.30107116699219, 22.43387890178297], + [114.29351806640625, 22.414202410321302], + [114.30587768554686, 22.408489358342635], + [114.32235717773438, 22.421184710331858], + [114.30107116699219, 22.43387890178297] + ]) + ], { + draggable: true, + transform: true + } + ) + .addTo(map); +//polygonWithHole.transform.enable(); + +var multiPolygon = global.multiPolygon = new L.Polygon([ + L.GeoJSON.coordsToLatLngs([ + [114.20562744140625, 22.32085984100593], + [114.21592712402344, 22.35261603551215], + [114.26467895507812, 22.351345926606957], + [114.2749786376953, 22.32403578584038], + [114.29214477539062, 22.32721165838893], + [114.3017578125, 22.311966810977616], + [114.29420471191406, 22.291002427735325], + [114.29351806640625, 22.272576585413475], + [114.28390502929688, 22.26177410097435], + [114.268798828125, 22.281472122783818], + [114.2749786376953, 22.294814367780518], + [114.26948547363281, 22.30243793590448], + [114.27017211914062, 22.31514295816939], + [114.2578125, 22.311966810977616], + [114.24751281738281, 22.299896792751927], + [114.24545288085938, 22.291002427735325], + [114.22966003417969, 22.307520083522476], + [114.22073364257812, 22.305614299837046], + [114.20562744140625, 22.32085984100593] + ]), + L.GeoJSON.coordsToLatLngs([ + [114.31549072265625, 22.33927931468312], + [114.32029724121094, 22.326576489662482], + [114.32991027832031, 22.326576489662482], + [114.33334350585938, 22.332292904091716], + [114.32304382324219, 22.3424548401465], + [114.31549072265625, 22.33927931468312] + ]), + L.GeoJSON.coordsToLatLngs([ + [114.27909851074219, 22.244615500323064], + [114.28115844726562, 22.251606295132948], + [114.28665161132812, 22.255419308858556], + [114.29969787597656, 22.26113863474449], + [114.2962646484375, 22.250970782750866], + [114.29489135742188, 22.24080219246335], + [114.29008483886717, 22.238895499613232], + [114.27909851074219, 22.244615500323064] + ]) +], { + draggable: true, + transform: true, + color: '#092' +}).bindPopup('MultiPolygon').addTo(map); +//multiPolygon.transform.enable(); + +var multiPolyline = global.multiPolyline = new L.Polyline([ + L.GeoJSON.coordsToLatLngs([ + [113.89869689941406, 22.399601921706953], + [113.89801025390625, 22.422454181709707], + [113.90350341796875, 22.43324421978117], + [113.90968322753906, 22.449110398886106], + [113.90693664550781, 22.478299425162852], + [113.9234161376953, 22.488450688325408], + [113.9337158203125, 22.483375149789623], + [113.9447021484375, 22.492257220085193], + [113.95225524902344, 22.51255695405145] + ]), + + L.GeoJSON.coordsToLatLngs([ + [113.8677978515625, 22.39261853713738], + [113.86917114257811, 22.42753195115699], + [113.9234161376953, 22.462436586653148], + [113.94813537597656, 22.473858013487614], + [113.9783477783203, 22.49923558968306], + [113.99688720703125, 22.51192263246886], + [114.01336669921875, 22.501138720300254], + [114.02503967285155, 22.508116641853675] + ]) +], { + draggable: true, + transform: true, + color: '#e90' +}).bindPopup('MultiPolyline').addTo(map); +// multiPolyline.transform.enable(); + +var layers = [polygon, polyline, multiPolyline, multiPolygon, polygonWithHole]; + +function update() { + L.Util.requestAnimFrame(function() { + var dragging = document.querySelector('#dragging').checked; + var scaling = document.querySelector('#scaling').checked; + var rotation = document.querySelector('#rotation').checked; + var uniform = document.querySelector('#uniform').checked; + + layers.forEach(function(layer) { + + if (layer.dragging) { + layer.dragging[dragging ? 'enable': 'disable'](); + } else { + layer.eachLayer(function(sublayer) { + sublayer.dragging[dragging ? 'enable': 'disable'](); + }); + } + + + layer.transform.setOptions({ + scaling: scaling, + rotation: rotation, + uniformScaling: uniform + }).enable(); + }); + }); +} + +[].slice.call(document.querySelectorAll('input[type=checkbox]')) +.forEach(function(checkbox) { + L.DomEvent.on(checkbox, 'change', update); +}); + +update(); }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"../../index":2,"leaflet":9}],2:[function(require,module,exports){ -var L = require('leaflet'); -require('leaflet-path-drag'); -require('./src/Util'); -require('./src/Matrix'); -require('./src/Path.Transform'); +var L = require('leaflet'); +require('leaflet-path-drag'); +require('./src/Util'); +require('./src/Matrix'); +require('./src/Path.Transform'); },{"./src/Matrix":10,"./src/Path.Transform":11,"./src/Util":12,"leaflet":9,"leaflet-path-drag":3}],3:[function(require,module,exports){ require('./src/SVG'); @@ -14081,1032 +14081,1037 @@ L.control.layers = function (baseLayers, overlays, options) { }(window, document)); },{}],10:[function(require,module,exports){ -/** - * @class L.Matrix - * - * @param {Number} a - * @param {Number} b - * @param {Number} c - * @param {Number} d - * @param {Number} e - * @param {Number} f - */ -L.Matrix = function(a, b, c, d, e, f) { - - /** - * @type {Array.} - */ - this._matrix = [a, b, c, d, e, f]; -}; - - -L.Matrix.prototype = { - - - /** - * @param {L.Point} point - * @return {L.Point} - */ - transform: function(point) { - return this._transform(point.clone()); - }, - - - /** - * Destructive - * - * [ x ] = [ a b tx ] [ x ] = [ a * x + b * y + tx ] - * [ y ] = [ c d ty ] [ y ] = [ c * x + d * y + ty ] - * - * @param {L.Point} point - * @return {L.Point} - */ - _transform: function(point) { - var matrix = this._matrix; - var x = point.x, y = point.y; - point.x = matrix[0] * x + matrix[1] * y + matrix[4]; - point.y = matrix[2] * x + matrix[3] * y + matrix[5]; - return point; - }, - - - /** - * @param {L.Point} point - * @return {L.Point} - */ - untransform: function (point) { - var matrix = this._matrix; - return new L.Point( - (point.x / matrix[0] - matrix[4]) / matrix[0], - (point.y / matrix[2] - matrix[5]) / matrix[2] - ); - }, - - - /** - * @return {L.Matrix} - */ - clone: function() { - var matrix = this._matrix; - return new L.Matrix( - matrix[0], matrix[1], matrix[2], - matrix[3], matrix[4], matrix[5] - ); - }, - - - /** - * @param {L.Point=|Number=} translate - * @return {L.Matrix|L.Point} - */ - translate: function(translate) { - if (translate === undefined) { - return new L.Point(this._matrix[4], this._matrix[5]); - } - - var translateX, translateY; - if (typeof translate === 'number') { - translateX = translateY = translate; - } else { - translateX = translate.x; - translateY = translate.y; - } - - return this._add(1, 0, 0, 1, translateX, translateY); - }, - - - /** - * @param {L.Point=|Number=} scale - * @return {L.Matrix|L.Point} - */ - scale: function(scale, origin) { - if (scale === undefined) { - return new L.Point(this._matrix[0], this._matrix[3]); - } - - var scaleX, scaleY; - origin = origin || L.point(0, 0); - if (typeof scale === 'number') { - scaleX = scaleY = scale; - } else { - scaleX = scale.x; - scaleY = scale.y; - } - - return this - ._add(scaleX, 0, 0, scaleY, origin.x, origin.y) - ._add(1, 0, 0, 1, -origin.x, -origin.y); - }, - - - /** - * m00 m01 x - m00 * x - m01 * y - * m10 m11 y - m10 * x - m11 * y - * @param {Number} angle - * @param {L.Point=} origin - * @return {L.Matrix} - */ - rotate: function(angle, origin) { - var cos = Math.cos(angle); - var sin = Math.sin(angle); - - origin = origin || new L.Point(0, 0); - - return this - ._add(cos, sin, -sin, cos, origin.x, origin.y) - ._add(1, 0, 0, 1, -origin.x, -origin.y); - }, - - - /** - * Invert rotation - * @return {L.Matrix} - */ - flip: function() { - this._matrix[1] *= -1; - this._matrix[2] *= -1; - return this; - }, - - - /** - * @param {Number|L.Matrix} a - * @param {Number} b - * @param {Number} c - * @param {Number} d - * @param {Number} e - * @param {Number} f - */ - _add: function(a, b, c, d, e, f) { - var result = [[], [], []]; - var src = this._matrix; - var m = [ - [src[0], src[2], src[4]], - [src[1], src[3], src[5]], - [ 0, 0, 1] - ]; - var other = [ - [a, c, e], - [b, d, f], - [0, 0, 1] - ], val; - - - if (a && a instanceof L.Matrix) { - src = a._matrix; - other = [ - [src[0], src[2], src[4]], - [src[1], src[3], src[5]], - [ 0, 0, 1]]; - } - - for (var i = 0; i < 3; i++) { - for (var j = 0; j < 3; j++) { - val = 0; - for (var k = 0; k < 3; k++) { - val += m[i][k] * other[k][j]; - } - result[i][j] = val; - } - } - - this._matrix = [ - result[0][0], result[1][0], result[0][1], - result[1][1], result[0][2], result[1][2] - ]; - return this; - } - - -}; - - -L.matrix = function(a, b, c, d, e, f) { - return new L.Matrix(a, b, c, d, e, f); -}; +/** + * @class L.Matrix + * + * @param {Number} a + * @param {Number} b + * @param {Number} c + * @param {Number} d + * @param {Number} e + * @param {Number} f + */ +L.Matrix = function(a, b, c, d, e, f) { + + /** + * @type {Array.} + */ + this._matrix = [a, b, c, d, e, f]; +}; + + +L.Matrix.prototype = { + + + /** + * @param {L.Point} point + * @return {L.Point} + */ + transform: function(point) { + return this._transform(point.clone()); + }, + + + /** + * Destructive + * + * [ x ] = [ a b tx ] [ x ] = [ a * x + b * y + tx ] + * [ y ] = [ c d ty ] [ y ] = [ c * x + d * y + ty ] + * + * @param {L.Point} point + * @return {L.Point} + */ + _transform: function(point) { + var matrix = this._matrix; + var x = point.x, y = point.y; + point.x = matrix[0] * x + matrix[1] * y + matrix[4]; + point.y = matrix[2] * x + matrix[3] * y + matrix[5]; + return point; + }, + + + /** + * @param {L.Point} point + * @return {L.Point} + */ + untransform: function (point) { + var matrix = this._matrix; + return new L.Point( + (point.x / matrix[0] - matrix[4]) / matrix[0], + (point.y / matrix[2] - matrix[5]) / matrix[2] + ); + }, + + + /** + * @return {L.Matrix} + */ + clone: function() { + var matrix = this._matrix; + return new L.Matrix( + matrix[0], matrix[1], matrix[2], + matrix[3], matrix[4], matrix[5] + ); + }, + + + /** + * @param {L.Point=|Number=} translate + * @return {L.Matrix|L.Point} + */ + translate: function(translate) { + if (translate === undefined) { + return new L.Point(this._matrix[4], this._matrix[5]); + } + + var translateX, translateY; + if (typeof translate === 'number') { + translateX = translateY = translate; + } else { + translateX = translate.x; + translateY = translate.y; + } + + return this._add(1, 0, 0, 1, translateX, translateY); + }, + + + /** + * @param {L.Point=|Number=} scale + * @return {L.Matrix|L.Point} + */ + scale: function(scale, origin) { + if (scale === undefined) { + return new L.Point(this._matrix[0], this._matrix[3]); + } + + var scaleX, scaleY; + origin = origin || L.point(0, 0); + if (typeof scale === 'number') { + scaleX = scaleY = scale; + } else { + scaleX = scale.x; + scaleY = scale.y; + } + + return this + ._add(scaleX, 0, 0, scaleY, origin.x, origin.y) + ._add(1, 0, 0, 1, -origin.x, -origin.y); + }, + + + /** + * m00 m01 x - m00 * x - m01 * y + * m10 m11 y - m10 * x - m11 * y + * @param {Number} angle + * @param {L.Point=} origin + * @return {L.Matrix} + */ + rotate: function(angle, origin) { + var cos = Math.cos(angle); + var sin = Math.sin(angle); + + origin = origin || new L.Point(0, 0); + + return this + ._add(cos, sin, -sin, cos, origin.x, origin.y) + ._add(1, 0, 0, 1, -origin.x, -origin.y); + }, + + + /** + * Invert rotation + * @return {L.Matrix} + */ + flip: function() { + this._matrix[1] *= -1; + this._matrix[2] *= -1; + return this; + }, + + + /** + * @param {Number|L.Matrix} a + * @param {Number} b + * @param {Number} c + * @param {Number} d + * @param {Number} e + * @param {Number} f + */ + _add: function(a, b, c, d, e, f) { + var result = [[], [], []]; + var src = this._matrix; + var m = [ + [src[0], src[2], src[4]], + [src[1], src[3], src[5]], + [ 0, 0, 1] + ]; + var other = [ + [a, c, e], + [b, d, f], + [0, 0, 1] + ], val; + + + if (a && a instanceof L.Matrix) { + src = a._matrix; + other = [ + [src[0], src[2], src[4]], + [src[1], src[3], src[5]], + [ 0, 0, 1]]; + } + + for (var i = 0; i < 3; i++) { + for (var j = 0; j < 3; j++) { + val = 0; + for (var k = 0; k < 3; k++) { + val += m[i][k] * other[k][j]; + } + result[i][j] = val; + } + } + + this._matrix = [ + result[0][0], result[1][0], result[0][1], + result[1][1], result[0][2], result[1][2] + ]; + return this; + } + + +}; + + +L.matrix = function(a, b, c, d, e, f) { + return new L.Matrix(a, b, c, d, e, f); +}; },{}],11:[function(require,module,exports){ -/** - * @namespace - * @type {Object} - */ -L.PathTransform = {}; - - -/** - * Marker handler - * @extends {L.CircleMarker} - */ -L.PathTransform.Handle = L.CircleMarker.extend({ - options: { - className: 'leaflet-path-transform-handler' - }, - - onAdd: function (map) { - L.CircleMarker.prototype.onAdd.call(this, map); - if (this._path && this.options.setCursor) { // SVG/VML - this._path.style.cursor = L.PathTransform.Handle.CursorsByType[ - this.options.index - ]; - } - } -}); - - -/** - * @const - * @type {Array} - */ -L.PathTransform.Handle.CursorsByType = [ - 'nesw-resize', 'nwse-resize', 'nesw-resize', 'nwse-resize' -]; - - -/** - * @extends {L.Handler.PathTransform.Handle} - */ -L.PathTransform.RotateHandle = L.PathTransform.Handle.extend({ - options: { - className: 'leaflet-path-transform-handler transform-handler--rotate' - }, - - onAdd: function (map) { - L.CircleMarker.prototype.onAdd.call(this, map); - if (this._path && this.options.setCursor) { // SVG/VML - this._path.style.cursor = 'all-scroll'; - } - } -}); - -L.Handler.PathTransform = L.Handler.extend({ - - options: { - rotation: true, - scaling: true, - uniformScaling: true, - maxZoom: 22, - - // edge handlers - handlerOptions: { - radius: 5, - fillColor: '#ffffff', - color: '#202020', - fillOpacity: 1, - weight: 2, - opacity: 0.7, - setCursor: true - }, - - // rectangle - boundsOptions: { - weight: 1, - opacity: 1, - dashArray: [3, 3], - fill: false - }, - - // rotation handler - rotateHandleOptions: { - weight: 1, - opacity: 1, - setCursor: true - }, - // rotation handle length - handleLength: 20, - - // maybe I'll add skewing in the future - edgesCount: 4, - - handleClass: L.PathTransform.Handle, - rotateHandleClass: L.PathTransform.RotateHandle - }, - - - /** - * @class L.Handler.PathTransform - * @constructor - * @param {L.Path} path - */ - initialize: function(path) { - // references - this._path = path; - this._map = null; - - // handlers - this._activeMarker = null; - this._originMarker = null; - this._rotationMarker = null; - - // origins & temporary state - this._rotationOrigin = null; - this._scaleOrigin = null; - this._angle = 0; - this._scale = L.point(1, 1); - this._initialDist = 0; - this._initialDistX = 0; - this._initialDistY = 0; - this._rotationStart = null; - this._rotationOriginPt = null; - - // preview and transform matrix - this._matrix = new L.Matrix(1, 0, 0, 1, 0, 0); - this._projectedMatrix = new L.Matrix(1, 0, 0, 1, 0, 0); - - // ui elements - this._handlersGroup = null; - this._rect = null; - this._handlers = []; - this._handleLine = null; - }, - - - /** - * If the polygon is not rendered, you can transform it yourself - * in the coordinates, and do it properly. - * @param {Object=} options - */ - enable: function(options) { - if (this._path._map) { - this._map = this._path._map; - if (options) { - this.setOptions(options); - } - L.Handler.prototype.enable.call(this); - } - }, - - - /** - * Init interactions and handlers - */ - addHooks: function() { - this._createHandlers(); - this._path - .on('dragstart', this._onDragStart, this) - .on('dragend', this._onDragEnd, this); - }, - - - /** - * Remove handlers - */ - removeHooks: function() { - this._hideHandlers(); - this._path - .off('dragstart', this._onDragStart, this) - .off('dragend', this._onDragEnd, this); - this._handlersGroup = null; - this._rect = null; - this._handlers = []; - }, - - - /** - * Change editing options - * @param {Object} options - */ - setOptions: function(options) { - var enabled = this._enabled; - if (enabled) { - this.disable(); - } - - this.options = L.Util.merge({}, - L.Handler.PathTransform.prototype.options, - options); - - if (enabled) { - this.enable(); - } - - return this; - }, - - - /** - * @param {Number} angle - * @param {L.LatLng} origin - * @return {L.Handler.PathTransform} - */ - rotate: function(angle, origin) { - return this.transform(angle, null, origin); - }, - - - /** - * @param {L.Point|Number} scale - * @param {L.LatLng} origin - * @return {L.Handler.PathTransform} - */ - scale: function(scale, origin) { - if (typeof scale === 'number') { - scale = L.point(scale, scale); - } - return this.transform(0, scale, null, origin); - }, - - - /** - * @param {Number} angle - * @param {L.Point} scale - * @param {L.LatLng=} rotationOrigin - * @param {L.LatLng=} scaleOrigin - * @return {L.Handler.PathTransform} - */ - transform: function(angle, scale, rotationOrigin, scaleOrigin) { - var center = this._path.getCenter(); - rotationOrigin = rotationOrigin || center; - scaleOrigin = scaleOrigin || center; - this._map = this._path._map; - this._transformPoints(this._path, angle, scale, rotationOrigin, scaleOrigin); - return this; - }, - - - /** - * Update the polygon and handlers preview, no reprojection - */ - _update: function() { - var matrix = this._matrix; - - // update handlers - for (var i = 0, len = this._handlers.length; i < len; i++) { - var handler = this._handlers[i]; - if (handler !== this._originMarker) { - handler._point = matrix.transform(handler._initialPoint); - handler._updatePath(); - } - } - - matrix = matrix.clone().flip(); - - this._applyTransform(matrix); - this._path.fire('transform', { layer: this._path }); - }, - - - /** - * @param {L.Matrix} matrix - */ - _applyTransform: function(matrix) { - this._path._transform(matrix._matrix); - this._rect._transform(matrix._matrix); - - if (this.options.rotation) { - this._handleLine._transform(matrix._matrix); - } - }, - - - /** - * Apply final transformation - */ - _apply: function() { - //console.group('apply transform'); - var map = this._map; - var matrix = this._matrix.clone(); - var angle = this._angle; - var scale = this._scale.clone(); - - this._transformGeometries(); - - // update handlers - for (var i = 0, len = this._handlers.length; i < len; i++) { - var handler = this._handlers[i]; - handler._latlng = map.layerPointToLatLng(handler._point); - delete handler._initialPoint; - handler.redraw(); - } - - this._matrix = L.matrix(1, 0, 0, 1, 0, 0); - this._scale = L.point(1, 1); - this._angle = 0; - - this._updateHandlers(); - - map.dragging.enable(); - this._path.fire('transformed', { - matrix: matrix, - scale: scale, - rotation: angle, - // angle: angle * (180 / Math.PI), - layer: this._path - }); - // console.groupEnd('apply transform'); - }, - - - /** - * Recalculate rotation handlers position - */ - _updateHandlers: function() { - var handlersGroup = this._handlersGroup; - - this._rectShape = this._rect.toGeoJSON(); - - this._handlersGroup.removeLayer(this._handleLine); - this._handlersGroup.removeLayer(this._rotationMarker); - - this._handleLine = this._rotationMarker = null; - - for (var i = this._handlers.length - 1; i >= 0; i--) { - handlersGroup.removeLayer(this._handlers[i]); - } - - this._createHandlers(); - }, - - - /** - * Transform geometries separately - */ - _transformGeometries: function() { - this._path._transform(null); - this._rect._transform(null); - - this._transformPoints(this._path); - this._transformPoints(this._rect); - - if (this.options.rotation) { - this._handleLine._transform(null); - this._transformPoints(this._handleLine, this._angle, null, this._origin); - } - }, - - - /** - * @param {Number} angle - * @param {Number} scale - * @param {L.LatLng=} rotationOrigin - * @param {L.LatLng=} scaleOrigin - */ - _getProjectedMatrix: function(angle, scale, rotationOrigin, scaleOrigin) { - var map = this._map; - var zoom = map.getMaxZoom() || this.options.maxZoom; - var matrix = L.matrix(1, 0, 0, 1, 0, 0); - var origin; - - angle = angle || this._angle || 0; - scale = scale || this._scale || L.point(1, 1); - - if (!(scale.x === 1 && scale.y === 1)) { - scaleOrigin = scaleOrigin || this._scaleOrigin; - origin = map.project(scaleOrigin, zoom); - matrix = matrix - ._add(L.matrix(1, 0, 0, 1, origin.x, origin.y)) - ._add(L.matrix(scale.x, 0, 0, scale.y, 0, 0)) - ._add(L.matrix(1, 0, 0, 1, -origin.x, -origin.y)); - } - - if (angle) { - rotationOrigin = rotationOrigin || this._rotationOrigin; - origin = map.project(rotationOrigin, zoom); - matrix = matrix.rotate(angle, origin).flip(); - } - - return matrix; - }, - - - /** - * @param {L.LatLng} latlng - * @param {L.Matrix} matrix - * @param {L.Map} map - * @param {Number} zoom - * @return {L.LatLng} - */ - _transformPoint: function(latlng, matrix, map, zoom) { - return map.unproject(matrix.transform( - map.project(latlng, zoom)), zoom); - }, - - - /** - * Applies transformation, does it in one sweep for performance, - * so don't be surprised about the code repetition. - * - * @param {L.Path} path - * @param {Number=} angle - * @param {L.Point=} scale - * @param {L.LatLng=} rotationOrigin - * @param {L.LatLng=} scaleOrigin - */ - _transformPoints: function(path, angle, scale, rotationOrigin, scaleOrigin) { - var map = path._map; - var zoom = map.getMaxZoom() || this.options.maxZoom; - var i, len; - - var projectedMatrix = this._projectedMatrix = - this._getProjectedMatrix(angle, scale, rotationOrigin, scaleOrigin); - // console.time('transform'); - - // all shifts are in-place - if (path._point) { // L.Circle - path._latlng = this._transformPoint( - path._latlng, projectedMatrix, map, zoom); - } else if (path._rings || path._parts) { // everything else - var rings = path._rings; - var latlngs = path._latlngs; - path._bounds = new L.LatLngBounds(); - - if (!L.Util.isArray(latlngs[0])) { // polyline - latlngs = [latlngs]; - } - for (i = 0, len = rings.length; i < len; i++) { - for (var j = 0, jj = rings[i].length; j < jj; j++) { - latlngs[i][j] = this._transformPoint( - latlngs[i][j], projectedMatrix, map, zoom); - path._bounds.extend(latlngs[i][j]); - } - } - } - - path._reset(); - //console.timeEnd('transform'); - }, - - - /** - * Creates markers and handles - */ - _createHandlers: function() { - var map = this._map; - this._handlersGroup = this._handlersGroup || - new L.LayerGroup().addTo(map); - this._rect = this._rect || - this._getBoundingPolygon().addTo(this._handlersGroup); - - if (this.options.scaling) { - this._handlers = []; - for (var i = 0; i < this.options.edgesCount; i++) { - // TODO: add stretching - this._handlers.push( - this._createHandler(this._rect._latlngs[0][i], i * 2, i) - .addTo(this._handlersGroup)); - } - } - - // add bounds - if (this.options.rotation) { - //add rotation handler - this._createRotationHandlers(); - } - }, - - - /** - * Rotation marker and small connectin handle - */ - _createRotationHandlers: function() { - var map = this._map; - var latlngs = this._rect._latlngs[0]; - - var bottom = new L.LatLng( - (latlngs[0].lat + latlngs[3].lat) / 2, - (latlngs[0].lng + latlngs[3].lng) / 2); - // hehe, top is a reserved word - var topPoint = new L.LatLng( - (latlngs[1].lat + latlngs[2].lat) / 2, - (latlngs[1].lng + latlngs[2].lng) / 2); - - var handlerPosition = map.layerPointToLatLng( - L.LineUtil.pointOnLine( - map.latLngToLayerPoint(bottom), - map.latLngToLayerPoint(topPoint), - this.options.handleLength) - ); - - this._handleLine = new L.Polyline([topPoint, handlerPosition], - this.options.rotateHandleOptions).addTo(this._handlersGroup); - var RotateHandleClass = this.options.rotateHandleClass; - this._rotationMarker = new RotateHandleClass(handlerPosition, - this.options.handlerOptions) - .addTo(this._handlersGroup) - .on('mousedown', this._onRotateStart, this); - - this._rotationOrigin = new L.LatLng( - (topPoint.lat + bottom.lat) / 2, - (topPoint.lng + bottom.lng) / 2 - ); - - this._handlers.push(this._rotationMarker); - }, - - - /** - * @return {L.LatLng} - */ - _getRotationOrigin: function() { - var latlngs = this._rect._latlngs[0]; - var lb = latlngs[0]; - var rt = latlngs[2]; - - return new L.LatLng( - (lb.lat + rt.lat) / 2, - (lb.lng + rt.lng) / 2 - ); - }, - - - /** - * Secure the rotation origin - * @param {Event} evt - */ - _onRotateStart: function(evt) { - var map = this._map; - - map.dragging.disable(); - - this._originMarker = null; - this._rotationOriginPt = map.latLngToLayerPoint(this._getRotationOrigin()); - this._rotationStart = evt.layerPoint; - this._initialMatrix = this._matrix.clone(); - - this._angle = 0; - this._path._map - .on('mousemove', this._onRotate, this) - .on('mouseup', this._onRotateEnd, this); - - this._cachePoints(); - this._path - .fire('transformstart', { layer: this._path }) - .fire('rotatestart', { layer: this._path, rotation: 0 }); - }, - - - /** - * @param {Event} evt - */ - _onRotate: function(evt) { - var pos = evt.layerPoint; - var previous = this._rotationStart; - var origin = this._rotationOriginPt; - - // rotation step angle - this._angle = Math.atan2(pos.y - origin.y, pos.x - origin.x) - - Math.atan2(previous.y - origin.y, previous.x - origin.x); - - this._matrix = this._initialMatrix - .clone() - .rotate(this._angle, origin) - .flip(); - - this._update(); - this._path.fire('rotate', { layer: this._path, rotation: this._angle }); - }, - - - /** - * @param {Event} evt - */ - _onRotateEnd: function(evt) { - this._path._map - .off('mousemove', this._onRotate, this) - .off('mouseup', this._onRotateEnd, this); - - this._apply(); - this._path.fire('rotateend', { layer: this._path, rotation: this._angle }); - }, - - - /** - * @param {Event} evt - */ - _onScaleStart: function(evt) { - var marker = evt.target; - var map = this._map; - - map.dragging.disable(); - - this._activeMarker = marker; - - this._originMarker = this._handlers[(marker.options.index + 2) % 4]; - this._scaleOrigin = this._originMarker.getLatLng(); - - this._initialMatrix = this._matrix.clone(); - this._cachePoints(); - - this._map - .on('mousemove', this._onScale, this) - .on('mouseup', this._onScaleEnd, this); - this._initialDist = this._originMarker._point.distanceTo(this._activeMarker._point); - this._initialDistX = this._originMarker._point.x - this._activeMarker._point.x; - this._initialDistY = this._originMarker._point.y - this._activeMarker._point.y; - - this._path - .fire('transformstart', { layer: this._path }) - .fire('scalestart', { layer: this._path, scale: L.point(1, 1) }); - - this._map.removeLayer(this._handleLine); - this._map.removeLayer(this._rotationMarker); - - //this._handleLine = this._rotationMarker = null; - }, - - - /** - * @param {Event} evt - */ - _onScale: function(evt) { - var originPoint = this._originMarker._point; - var ratioX, ratioY; - if (this.options.uniformScaling) { - ratioX = originPoint.distanceTo(evt.layerPoint) / this._initialDist; - ratioY = ratioX; - } else { - ratioX = (originPoint.x - evt.layerPoint.x) / this._initialDistX; - ratioY = (originPoint.y - evt.layerPoint.y) / this._initialDistY; - } - - this._scale = new L.Point(ratioX, ratioY); - - // update matrix - this._matrix = this._initialMatrix - .clone() - .scale(this._scale, originPoint); - - this._update(); - this._path.fire('scale', { - layer: this._path, scale: this._scale.clone() }); - }, - - - /** - * Scaling complete - * @param {Event} evt - */ - _onScaleEnd: function(evt) { - this._map - .off('mousemove', this._onScale, this) - .off('mouseup', this._onScaleEnd, this); - - this._map.addLayer(this._handleLine); - this._map.addLayer(this._rotationMarker); - - this._apply(); - this._path.fire('scaleend', { - layer: this._path, scale: this._scale.clone() }); - }, - - - /** - * Cache current handlers positions - */ - _cachePoints: function() { - this._handlersGroup.eachLayer(function(layer) { - layer.bringToFront(); - }); - for (var i = 0, len = this._handlers.length; i < len; i++) { - var handler = this._handlers[i]; - handler._initialPoint = handler._point.clone(); - } - }, - - - /** - * Bounding polygon - * @return {L.Polygon} - */ - _getBoundingPolygon: function() { - if (this._rectShape) { - return L.GeoJSON.geometryToLayer( - this._rectShape, this.options.boundsOptions); - } else { - return new L.Rectangle( - this._path.getBounds(), this.options.boundsOptions); - } - }, - - - /** - * Create corner marker - * @param {L.LatLng} latlng - * @param {Number} type one of L.Handler.PathTransform.HandlerTypes - * @param {Number} index - * @return {L.Handler.PathTransform.Handle} - */ - _createHandler: function(latlng, type, index) { - var HandleClass = this.options.handleClass; - var marker = new HandleClass(latlng, - L.Util.extend({}, this.options.handlerOptions, { - className: 'leaflet-drag-transform-marker drag-marker--' + - index + ' drag-marker--' + type, - index: index, - type: type - }) - ); - - marker.on('mousedown', this._onScaleStart, this); - return marker; - }, - - - /** - * Hide(not remove) the handlers layer - */ - _hideHandlers: function() { - this._map.removeLayer(this._handlersGroup); - }, - - - /** - * Hide handlers and rectangle - */ - _onDragStart: function() { - this._hideHandlers(); - }, - - - /** - * Drag rectangle, re-create handlers - */ - _onDragEnd: function(evt) { - var rect = this._rect; - var matrix = (evt.layer ? evt.layer : this._path).dragging._matrix.slice(); - - if (!rect.dragging) { - rect.dragging = new L.Handler.PathDrag(rect); - } - rect.dragging.enable(); - this._map.addLayer(rect); - rect.dragging._transformPoints(matrix); - rect._updatePath(); - rect._project(); - rect.dragging.disable(); - - this._map.addLayer(this._handlersGroup); - this._updateHandlers(); - - this._path.fire('transformed', { - scale: L.point(1, 1), - rotation: 0, - matrix: L.matrix.apply(undefined, matrix), - translate: L.point(matrix[4], matrix[5]), - layer: this._path - }); - } -}); - - -L.Path.addInitHook(function() { - if (this.options.transform) { - this.transform = new L.Handler.PathTransform(this, this.options.transform); - } -}); +/** + * @namespace + * @type {Object} + */ +L.PathTransform = {}; + + +/** + * Marker handler + * @extends {L.CircleMarker} + */ +L.PathTransform.Handle = L.CircleMarker.extend({ + options: { + className: 'leaflet-path-transform-handler' + }, + + onAdd: function (map) { + L.CircleMarker.prototype.onAdd.call(this, map); + if (this._path && this.options.setCursor) { // SVG/VML + this._path.style.cursor = L.PathTransform.Handle.CursorsByType[ + this.options.index + ]; + } + } +}); + + +/** + * @const + * @type {Array} + */ +L.PathTransform.Handle.CursorsByType = [ + 'nesw-resize', 'nwse-resize', 'nesw-resize', 'nwse-resize' +]; + + +/** + * @extends {L.Handler.PathTransform.Handle} + */ +L.PathTransform.RotateHandle = L.PathTransform.Handle.extend({ + options: { + className: 'leaflet-path-transform-handler transform-handler--rotate' + }, + + onAdd: function (map) { + L.CircleMarker.prototype.onAdd.call(this, map); + if (this._path && this.options.setCursor) { // SVG/VML + this._path.style.cursor = 'all-scroll'; + } + } +}); + +L.Handler.PathTransform = L.Handler.extend({ + + options: { + rotation: true, + scaling: true, + uniformScaling: true, + maxZoom: 22, + + // edge handlers + handlerOptions: { + radius: 5, + fillColor: '#ffffff', + color: '#202020', + fillOpacity: 1, + weight: 2, + opacity: 0.7, + setCursor: true + }, + + // rectangle + boundsOptions: { + weight: 1, + opacity: 1, + dashArray: [3, 3], + fill: false + }, + + // rotation handler + rotateHandleOptions: { + weight: 1, + opacity: 1, + setCursor: true + }, + // rotation handle length + handleLength: 20, + + // maybe I'll add skewing in the future + edgesCount: 4, + + handleClass: L.PathTransform.Handle, + rotateHandleClass: L.PathTransform.RotateHandle + }, + + + /** + * @class L.Handler.PathTransform + * @constructor + * @param {L.Path} path + */ + initialize: function(path) { + // references + this._path = path; + this._map = null; + + // handlers + this._activeMarker = null; + this._originMarker = null; + this._rotationMarker = null; + + // origins & temporary state + this._rotationOrigin = null; + this._scaleOrigin = null; + this._angle = 0; + this._scale = L.point(1, 1); + this._initialDist = 0; + this._initialDistX = 0; + this._initialDistY = 0; + this._rotationStart = null; + this._rotationOriginPt = null; + + // preview and transform matrix + this._matrix = new L.Matrix(1, 0, 0, 1, 0, 0); + this._projectedMatrix = new L.Matrix(1, 0, 0, 1, 0, 0); + + // ui elements + this._handlersGroup = null; + this._rect = null; + this._handlers = []; + this._handleLine = null; + }, + + + /** + * If the polygon is not rendered, you can transform it yourself + * in the coordinates, and do it properly. + * @param {Object=} options + */ + enable: function(options) { + if (this._path._map) { + this._map = this._path._map; + if (options) { + this.setOptions(options); + } + L.Handler.prototype.enable.call(this); + } + }, + + + /** + * Init interactions and handlers + */ + addHooks: function() { + this._createHandlers(); + this._path + .on('dragstart', this._onDragStart, this) + .on('dragend', this._onDragEnd, this); + }, + + + /** + * Remove handlers + */ + removeHooks: function() { + this._hideHandlers(); + this._path + .off('dragstart', this._onDragStart, this) + .off('dragend', this._onDragEnd, this); + this._handlersGroup = null; + this._rect = null; + this._handlers = []; + }, + + + /** + * Change editing options + * @param {Object} options + */ + setOptions: function(options) { + var enabled = this._enabled; + if (enabled) { + this.disable(); + } + + this.options = L.Util.merge({}, + L.Handler.PathTransform.prototype.options, + options); + + if (enabled) { + this.enable(); + } + + return this; + }, + + + /** + * @param {Number} angle + * @param {L.LatLng} origin + * @return {L.Handler.PathTransform} + */ + rotate: function(angle, origin) { + return this.transform(angle, null, origin); + }, + + + /** + * @param {L.Point|Number} scale + * @param {L.LatLng} origin + * @return {L.Handler.PathTransform} + */ + scale: function(scale, origin) { + if (typeof scale === 'number') { + scale = L.point(scale, scale); + } + return this.transform(0, scale, null, origin); + }, + + + /** + * @param {Number} angle + * @param {L.Point} scale + * @param {L.LatLng=} rotationOrigin + * @param {L.LatLng=} scaleOrigin + * @return {L.Handler.PathTransform} + */ + transform: function(angle, scale, rotationOrigin, scaleOrigin) { + var center = this._path.getCenter(); + rotationOrigin = rotationOrigin || center; + scaleOrigin = scaleOrigin || center; + this._map = this._path._map; + this._transformPoints(this._path, angle, scale, rotationOrigin, scaleOrigin); + return this; + }, + + + /** + * Update the polygon and handlers preview, no reprojection + */ + _update: function() { + var matrix = this._matrix; + + // update handlers + for (var i = 0, len = this._handlers.length; i < len; i++) { + var handler = this._handlers[i]; + if (handler !== this._originMarker) { + handler._point = matrix.transform(handler._initialPoint); + handler._updatePath(); + } + } + + matrix = matrix.clone().flip(); + + this._applyTransform(matrix); + this._path.fire('transform', { layer: this._path }); + }, + + + /** + * @param {L.Matrix} matrix + */ + _applyTransform: function(matrix) { + this._path._transform(matrix._matrix); + this._rect._transform(matrix._matrix); + + if (this.options.rotation) { + this._handleLine._transform(matrix._matrix); + } + }, + + + /** + * Apply final transformation + */ + _apply: function() { + //console.group('apply transform'); + var map = this._map; + var matrix = this._matrix.clone(); + var angle = this._angle; + var scale = this._scale.clone(); + + this._transformGeometries(); + + // update handlers + for (var i = 0, len = this._handlers.length; i < len; i++) { + var handler = this._handlers[i]; + handler._latlng = map.layerPointToLatLng(handler._point); + delete handler._initialPoint; + handler.redraw(); + } + + this._matrix = L.matrix(1, 0, 0, 1, 0, 0); + this._scale = L.point(1, 1); + this._angle = 0; + + this._updateHandlers(); + + map.dragging.enable(); + this._path.fire('transformed', { + matrix: matrix, + scale: scale, + rotation: angle, + // angle: angle * (180 / Math.PI), + layer: this._path + }); + // console.groupEnd('apply transform'); + }, + + + /** + * Recalculate rotation handlers position + */ + _updateHandlers: function() { + var handlersGroup = this._handlersGroup; + + this._rectShape = this._rect.toGeoJSON(); + + if (this._handleLine) { + this._handlersGroup.removeLayer(this._handleLine); + } + + if (this._rotationMarker) { + this._handlersGroup.removeLayer(this._rotationMarker); + } + + this._handleLine = this._rotationMarker = null; + + for (var i = this._handlers.length - 1; i >= 0; i--) { + handlersGroup.removeLayer(this._handlers[i]); + } + + this._createHandlers(); + }, + + + /** + * Transform geometries separately + */ + _transformGeometries: function() { + this._path._transform(null); + this._rect._transform(null); + + this._transformPoints(this._path); + this._transformPoints(this._rect); + + if (this.options.rotation) { + this._handleLine._transform(null); + this._transformPoints(this._handleLine, this._angle, null, this._origin); + } + }, + + + /** + * @param {Number} angle + * @param {Number} scale + * @param {L.LatLng=} rotationOrigin + * @param {L.LatLng=} scaleOrigin + */ + _getProjectedMatrix: function(angle, scale, rotationOrigin, scaleOrigin) { + var map = this._map; + var zoom = map.getMaxZoom() || this.options.maxZoom; + var matrix = L.matrix(1, 0, 0, 1, 0, 0); + var origin; + + angle = angle || this._angle || 0; + scale = scale || this._scale || L.point(1, 1); + + if (!(scale.x === 1 && scale.y === 1)) { + scaleOrigin = scaleOrigin || this._scaleOrigin; + origin = map.project(scaleOrigin, zoom); + matrix = matrix + ._add(L.matrix(1, 0, 0, 1, origin.x, origin.y)) + ._add(L.matrix(scale.x, 0, 0, scale.y, 0, 0)) + ._add(L.matrix(1, 0, 0, 1, -origin.x, -origin.y)); + } + + if (angle) { + rotationOrigin = rotationOrigin || this._rotationOrigin; + origin = map.project(rotationOrigin, zoom); + matrix = matrix.rotate(angle, origin).flip(); + } + + return matrix; + }, + + + /** + * @param {L.LatLng} latlng + * @param {L.Matrix} matrix + * @param {L.Map} map + * @param {Number} zoom + * @return {L.LatLng} + */ + _transformPoint: function(latlng, matrix, map, zoom) { + return map.unproject(matrix.transform( + map.project(latlng, zoom)), zoom); + }, + + + /** + * Applies transformation, does it in one sweep for performance, + * so don't be surprised about the code repetition. + * + * @param {L.Path} path + * @param {Number=} angle + * @param {L.Point=} scale + * @param {L.LatLng=} rotationOrigin + * @param {L.LatLng=} scaleOrigin + */ + _transformPoints: function(path, angle, scale, rotationOrigin, scaleOrigin) { + var map = path._map; + var zoom = map.getMaxZoom() || this.options.maxZoom; + var i, len; + + var projectedMatrix = this._projectedMatrix = + this._getProjectedMatrix(angle, scale, rotationOrigin, scaleOrigin); + // console.time('transform'); + + // all shifts are in-place + if (path._point) { // L.Circle + path._latlng = this._transformPoint( + path._latlng, projectedMatrix, map, zoom); + } else if (path._rings || path._parts) { // everything else + var rings = path._rings; + var latlngs = path._latlngs; + path._bounds = new L.LatLngBounds(); + + if (!L.Util.isArray(latlngs[0])) { // polyline + latlngs = [latlngs]; + } + for (i = 0, len = rings.length; i < len; i++) { + for (var j = 0, jj = rings[i].length; j < jj; j++) { + latlngs[i][j] = this._transformPoint( + latlngs[i][j], projectedMatrix, map, zoom); + path._bounds.extend(latlngs[i][j]); + } + } + } + + path._reset(); + //console.timeEnd('transform'); + }, + + + /** + * Creates markers and handles + */ + _createHandlers: function() { + var map = this._map; + this._handlersGroup = this._handlersGroup || + new L.LayerGroup().addTo(map); + this._rect = this._rect || + this._getBoundingPolygon().addTo(this._handlersGroup); + + if (this.options.scaling) { + this._handlers = []; + for (var i = 0; i < this.options.edgesCount; i++) { + // TODO: add stretching + this._handlers.push( + this._createHandler(this._rect._latlngs[0][i], i * 2, i) + .addTo(this._handlersGroup)); + } + } + + // add bounds + if (this.options.rotation) { + //add rotation handler + this._createRotationHandlers(); + } + }, + + + /** + * Rotation marker and small connectin handle + */ + _createRotationHandlers: function() { + var map = this._map; + var latlngs = this._rect._latlngs[0]; + + var bottom = new L.LatLng( + (latlngs[0].lat + latlngs[3].lat) / 2, + (latlngs[0].lng + latlngs[3].lng) / 2); + // hehe, top is a reserved word + var topPoint = new L.LatLng( + (latlngs[1].lat + latlngs[2].lat) / 2, + (latlngs[1].lng + latlngs[2].lng) / 2); + + var handlerPosition = map.layerPointToLatLng( + L.LineUtil.pointOnLine( + map.latLngToLayerPoint(bottom), + map.latLngToLayerPoint(topPoint), + this.options.handleLength) + ); + + this._handleLine = new L.Polyline([topPoint, handlerPosition], + this.options.rotateHandleOptions).addTo(this._handlersGroup); + var RotateHandleClass = this.options.rotateHandleClass; + this._rotationMarker = new RotateHandleClass(handlerPosition, + this.options.handlerOptions) + .addTo(this._handlersGroup) + .on('mousedown', this._onRotateStart, this); + + this._rotationOrigin = new L.LatLng( + (topPoint.lat + bottom.lat) / 2, + (topPoint.lng + bottom.lng) / 2 + ); + + this._handlers.push(this._rotationMarker); + }, + + + /** + * @return {L.LatLng} + */ + _getRotationOrigin: function() { + var latlngs = this._rect._latlngs[0]; + var lb = latlngs[0]; + var rt = latlngs[2]; + + return new L.LatLng( + (lb.lat + rt.lat) / 2, + (lb.lng + rt.lng) / 2 + ); + }, + + + /** + * Secure the rotation origin + * @param {Event} evt + */ + _onRotateStart: function(evt) { + var map = this._map; + + map.dragging.disable(); + + this._originMarker = null; + this._rotationOriginPt = map.latLngToLayerPoint(this._getRotationOrigin()); + this._rotationStart = evt.layerPoint; + this._initialMatrix = this._matrix.clone(); + + this._angle = 0; + this._path._map + .on('mousemove', this._onRotate, this) + .on('mouseup', this._onRotateEnd, this); + + this._cachePoints(); + this._path + .fire('transformstart', { layer: this._path }) + .fire('rotatestart', { layer: this._path, rotation: 0 }); + }, + + + /** + * @param {Event} evt + */ + _onRotate: function(evt) { + var pos = evt.layerPoint; + var previous = this._rotationStart; + var origin = this._rotationOriginPt; + + // rotation step angle + this._angle = Math.atan2(pos.y - origin.y, pos.x - origin.x) - + Math.atan2(previous.y - origin.y, previous.x - origin.x); + + this._matrix = this._initialMatrix + .clone() + .rotate(this._angle, origin) + .flip(); + + this._update(); + this._path.fire('rotate', { layer: this._path, rotation: this._angle }); + }, + + + /** + * @param {Event} evt + */ + _onRotateEnd: function(evt) { + this._path._map + .off('mousemove', this._onRotate, this) + .off('mouseup', this._onRotateEnd, this); + + this._apply(); + this._path.fire('rotateend', { layer: this._path, rotation: this._angle }); + }, + + + /** + * @param {Event} evt + */ + _onScaleStart: function(evt) { + var marker = evt.target; + var map = this._map; + + map.dragging.disable(); + + this._activeMarker = marker; + + this._originMarker = this._handlers[(marker.options.index + 2) % 4]; + this._scaleOrigin = this._originMarker.getLatLng(); + + this._initialMatrix = this._matrix.clone(); + this._cachePoints(); + + this._map + .on('mousemove', this._onScale, this) + .on('mouseup', this._onScaleEnd, this); + this._initialDist = this._originMarker._point.distanceTo(this._activeMarker._point); + this._initialDistX = this._originMarker._point.x - this._activeMarker._point.x; + this._initialDistY = this._originMarker._point.y - this._activeMarker._point.y; + + this._path + .fire('transformstart', { layer: this._path }) + .fire('scalestart', { layer: this._path, scale: L.point(1, 1) }); + + this._map.removeLayer(this._handleLine); + this._map.removeLayer(this._rotationMarker); + + //this._handleLine = this._rotationMarker = null; + }, + + + /** + * @param {Event} evt + */ + _onScale: function(evt) { + var originPoint = this._originMarker._point; + var ratioX, ratioY; + if (this.options.uniformScaling) { + ratioX = originPoint.distanceTo(evt.layerPoint) / this._initialDist; + ratioY = ratioX; + } else { + ratioX = (originPoint.x - evt.layerPoint.x) / this._initialDistX; + ratioY = (originPoint.y - evt.layerPoint.y) / this._initialDistY; + } + + this._scale = new L.Point(ratioX, ratioY); + + // update matrix + this._matrix = this._initialMatrix + .clone() + .scale(this._scale, originPoint); + + this._update(); + this._path.fire('scale', { + layer: this._path, scale: this._scale.clone() }); + }, + + + /** + * Scaling complete + * @param {Event} evt + */ + _onScaleEnd: function(evt) { + this._map + .off('mousemove', this._onScale, this) + .off('mouseup', this._onScaleEnd, this); + + this._map.addLayer(this._handleLine); + this._map.addLayer(this._rotationMarker); + + this._apply(); + this._path.fire('scaleend', { + layer: this._path, scale: this._scale.clone() }); + }, + + + /** + * Cache current handlers positions + */ + _cachePoints: function() { + this._handlersGroup.eachLayer(function(layer) { + layer.bringToFront(); + }); + for (var i = 0, len = this._handlers.length; i < len; i++) { + var handler = this._handlers[i]; + handler._initialPoint = handler._point.clone(); + } + }, + + + /** + * Bounding polygon + * @return {L.Polygon} + */ + _getBoundingPolygon: function() { + if (this._rectShape) { + return L.GeoJSON.geometryToLayer( + this._rectShape, this.options.boundsOptions); + } else { + return new L.Rectangle( + this._path.getBounds(), this.options.boundsOptions); + } + }, + + + /** + * Create corner marker + * @param {L.LatLng} latlng + * @param {Number} type one of L.Handler.PathTransform.HandlerTypes + * @param {Number} index + * @return {L.Handler.PathTransform.Handle} + */ + _createHandler: function(latlng, type, index) { + var HandleClass = this.options.handleClass; + var marker = new HandleClass(latlng, + L.Util.extend({}, this.options.handlerOptions, { + className: 'leaflet-drag-transform-marker drag-marker--' + + index + ' drag-marker--' + type, + index: index, + type: type + }) + ); + + marker.on('mousedown', this._onScaleStart, this); + return marker; + }, + + + /** + * Hide(not remove) the handlers layer + */ + _hideHandlers: function() { + this._map.removeLayer(this._handlersGroup); + }, + + + /** + * Hide handlers and rectangle + */ + _onDragStart: function() { + this._hideHandlers(); + }, + + + /** + * Drag rectangle, re-create handlers + */ + _onDragEnd: function(evt) { + var rect = this._rect; + var matrix = (evt.layer ? evt.layer : this._path).dragging._matrix.slice(); + + if (!rect.dragging) { + rect.dragging = new L.Handler.PathDrag(rect); + } + rect.dragging.enable(); + this._map.addLayer(rect); + rect.dragging._transformPoints(matrix); + rect._updatePath(); + rect._project(); + rect.dragging.disable(); + + this._map.addLayer(this._handlersGroup); + this._updateHandlers(); + + this._path.fire('transformed', { + scale: L.point(1, 1), + rotation: 0, + matrix: L.matrix.apply(undefined, matrix), + translate: L.point(matrix[4], matrix[5]), + layer: this._path + }); + } +}); + + +L.Path.addInitHook(function() { + if (this.options.transform) { + this.transform = new L.Handler.PathTransform(this, this.options.transform); + } +}); },{}],12:[function(require,module,exports){ -/** - * Point on the line segment or its extention - * - * @param {L.Point} start - * @param {L.Point} final - * @param {Number} distPx - * @return {L.Point} - */ -L.LineUtil.pointOnLine = function(start, final, distPx) { - var ratio = 1 + distPx / start.distanceTo(final); - return new L.Point( - start.x + (final.x - start.x) * ratio, - start.y + (final.y - start.y) * ratio - ); -}; - - -/** - * Deep merge objects. - */ -L.Util.merge = function() { - var i = 1; - var key, val; - var obj = arguments[i]; - - function isObject(object) { - return Object.prototype.toString.call(object) === '[object Object]'; - } - - // make sure we don't modify source element and it's properties - // objects are passed by reference - var target = arguments[0]; - - while (obj) { - obj = arguments[i++]; - for (key in obj) { - if (!obj.hasOwnProperty(key)) { - continue; - } - - val = obj[key]; - - if (isObject(val) && isObject(target[key])){ - target[key] = L.Util.merge(target[key], val); - } else { - target[key] = val; - } - } - } - return target; -}; +/** + * Point on the line segment or its extention + * + * @param {L.Point} start + * @param {L.Point} final + * @param {Number} distPx + * @return {L.Point} + */ +L.LineUtil.pointOnLine = function(start, final, distPx) { + var ratio = 1 + distPx / start.distanceTo(final); + return new L.Point( + start.x + (final.x - start.x) * ratio, + start.y + (final.y - start.y) * ratio + ); +}; + + +/** + * Deep merge objects. + */ +L.Util.merge = function() { + var i = 1; + var key, val; + var obj = arguments[i]; + + function isObject(object) { + return Object.prototype.toString.call(object) === '[object Object]'; + } + + // make sure we don't modify source element and it's properties + // objects are passed by reference + var target = arguments[0]; + + while (obj) { + obj = arguments[i++]; + for (key in obj) { + if (!obj.hasOwnProperty(key)) { + continue; + } + + val = obj[key]; + + if (isObject(val) && isObject(target[key])){ + target[key] = L.Util.merge(target[key], val); + } else { + target[key] = val; + } + } + } + return target; +}; },{}]},{},[1]) -//# 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e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})","var L = require('leaflet');\nvar DragHandler = require('../../index');\n\nL.Icon.Default.imagePath = \"http://cdn.leafletjs.com/leaflet-0.7/images\";\n\n////////////////////////////////////////////////////////////////////////////////\nvar map = global.map = new L.Map('map', {\n  // crs: L.CRS.EPSG4326 // that was tested as well\n}).setView([22.42658, 114.1952], 11);\n\nL.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {\n  attribution: '&copy; ' +\n    '<a href=\"http://osm.org/copyright\">OSM</a> contributors'\n}).addTo(map);\n\n////////////////////////////////////////////////////////////////////////////////\nfunction interpolateArr(array, insert) {\n  var res = [];\n  array.forEach(function(p, i, arr) {\n    res.push(p.concat());\n\n    if (i < arr.length - 1) {\n      var diff = [arr[i + 1][0] - p[0], arr[i + 1][1] - p[1]];\n      for (var i = 1; i < insert; i++) {\n        res.push([p[0] + (diff[0] * i) / insert, p[1] + (diff[1] * i) / insert]);\n      }\n    }\n  });\n\n  return res;\n}\n\n////////////////////////////////////////////////////////////////////////////////\nvar polygon = global.polygon = new L.Polygon(\n  L.GeoJSON.coordsToLatLngs(\n\n    // ~ 13 000 points\n    interpolateArr([\n      [113.97697448730469, 22.403410892712124],\n      [113.98658752441405, 22.38373008592495],\n      [114.01268005371094, 22.369126397545887],\n      [114.02778625488281, 22.38563480185718],\n      [114.04701232910156, 22.395157990290755],\n      [114.06005859375,    22.413567638369805],\n      [114.06280517578125, 22.432609534876796],\n      [114.04838562011717, 22.444668051657157],\n      [114.04289245605469, 22.44847578656544],\n      [114.03259277343749, 22.444668051657157],\n      [114.01954650878906, 22.447206553211814],\n      [113.99620056152344, 22.436417600763114],\n      [113.98178100585938, 22.420549970290875],\n      [113.97697448730469, 22.403410892712124]\n    ], 1000)\n  ), {\n    color: '#f00',\n    interactive: true,\n    draggable: true,\n    transform: true\n  }).addTo(map);\n//polygon.transform.enable();\n\nvar polyline = global.polyline = new L.Polyline(\n  L.GeoJSON.coordsToLatLngs([\n    [114.14314270019531, 22.49479484975443],\n    [114.1534423828125,  22.485912942320958],\n    [114.15206909179688, 22.4732235144781],\n    [114.14932250976561, 22.459898363943893],\n    [114.15962219238281, 22.447206553211814],\n    [114.169921875,      22.447206553211814],\n    [114.19395446777344, 22.459898363943893],\n    [114.20631408691406, 22.46116748110935],\n    [114.21180725097655, 22.473858013487614],\n    [114.22416687011719, 22.471320000009992],\n    [114.23721313476562, 22.476395980457973],\n    [114.24201965332031, 22.49352604073722],\n    [114.2303466796875,  22.51572851830351],\n    [114.21798706054688, 22.524608511026262],\n    [114.20768737792969, 22.524608511026262],\n    [114.20768737792969, 22.536024805886974]\n  ]), {\n    weight: 15,\n    draggable: true,\n    transform: true\n  })\n  .bindPopup(\"L.Polyline\")\n  .addTo(map);\n// polyline.transform.enable();\n\n\nvar polygonWithHole = global.polygonWithHole = new L.Polygon(\n    [\n      L.GeoJSON.coordsToLatLngs([\n        [114.2749786376953,  22.412932863517717],\n        [114.28390502929688, 22.40087159030595],\n        [114.29008483886717, 22.38880927045556],\n        [114.30107116699219, 22.382460260815716],\n        [114.31892395019531, 22.391983666602783],\n        [114.32304382324219, 22.380555501421533],\n        [114.34295654296875, 22.372936203113838],\n        [114.334716796875,   22.384364994133303],\n        [114.33059692382812, 22.393888269511194],\n        [114.32167053222655, 22.40087159030595],\n        [114.32785034179688, 22.413567638369805],\n        [114.33197021484375, 22.42499308964722],\n        [114.32579040527344, 22.430705462748918],\n        [114.33197021484375, 22.43959090917266],\n        [114.33746337890624, 22.449110398886106],\n        [114.33540344238281, 22.461802035333992],\n        [114.32510375976562, 22.464340223177118],\n        [114.32922363281249, 22.472589012561954],\n        [114.32373046875,    22.477030464933307],\n        [114.31961059570312, 22.478933900916928],\n        [114.3017578125,     22.466243833549445],\n        [114.30244445800781, 22.457360094750083],\n        [114.29283142089844, 22.454821779075832],\n        [114.28390502929688, 22.45101421842269],\n        [114.2749786376953,  22.442764145001707],\n        [114.29077148437499, 22.428166659279615],\n        [114.27703857421875, 22.420549970290875],\n        [114.2749786376953,  22.412932863517717]\n      ]),\n      L.GeoJSON.coordsToLatLngs([\n        [114.30107116699219, 22.43387890178297],\n        [114.29351806640625, 22.414202410321302],\n        [114.30587768554686, 22.408489358342635],\n        [114.32235717773438, 22.421184710331858],\n        [114.30107116699219, 22.43387890178297]\n      ])\n    ], {\n      draggable: true,\n      transform: true\n    }\n  )\n  .addTo(map);\n//polygonWithHole.transform.enable();\n\nvar multiPolygon = global.multiPolygon = new L.Polygon([\n  L.GeoJSON.coordsToLatLngs([\n    [114.20562744140625, 22.32085984100593],\n    [114.21592712402344, 22.35261603551215],\n    [114.26467895507812, 22.351345926606957],\n    [114.2749786376953,  22.32403578584038],\n    [114.29214477539062, 22.32721165838893],\n    [114.3017578125,     22.311966810977616],\n    [114.29420471191406, 22.291002427735325],\n    [114.29351806640625, 22.272576585413475],\n    [114.28390502929688, 22.26177410097435],\n    [114.268798828125,   22.281472122783818],\n    [114.2749786376953,  22.294814367780518],\n    [114.26948547363281, 22.30243793590448],\n    [114.27017211914062, 22.31514295816939],\n    [114.2578125,        22.311966810977616],\n    [114.24751281738281, 22.299896792751927],\n    [114.24545288085938, 22.291002427735325],\n    [114.22966003417969, 22.307520083522476],\n    [114.22073364257812, 22.305614299837046],\n    [114.20562744140625, 22.32085984100593]\n  ]),\n  L.GeoJSON.coordsToLatLngs([\n    [114.31549072265625, 22.33927931468312],\n    [114.32029724121094, 22.326576489662482],\n    [114.32991027832031, 22.326576489662482],\n    [114.33334350585938, 22.332292904091716],\n    [114.32304382324219, 22.3424548401465],\n    [114.31549072265625, 22.33927931468312]\n  ]),\n  L.GeoJSON.coordsToLatLngs([\n    [114.27909851074219, 22.244615500323064],\n    [114.28115844726562, 22.251606295132948],\n    [114.28665161132812, 22.255419308858556],\n    [114.29969787597656, 22.26113863474449],\n    [114.2962646484375,  22.250970782750866],\n    [114.29489135742188, 22.24080219246335],\n    [114.29008483886717, 22.238895499613232],\n    [114.27909851074219, 22.244615500323064]\n  ])\n], {\n  draggable: true,\n  transform: true,\n  color: '#092'\n}).bindPopup('MultiPolygon').addTo(map);\n//multiPolygon.transform.enable();\n\nvar multiPolyline = global.multiPolyline = new L.Polyline([\n  L.GeoJSON.coordsToLatLngs([\n    [113.89869689941406, 22.399601921706953],\n    [113.89801025390625, 22.422454181709707],\n    [113.90350341796875, 22.43324421978117],\n    [113.90968322753906, 22.449110398886106],\n    [113.90693664550781, 22.478299425162852],\n    [113.9234161376953,  22.488450688325408],\n    [113.9337158203125,  22.483375149789623],\n    [113.9447021484375,  22.492257220085193],\n    [113.95225524902344, 22.51255695405145]\n  ]),\n\n  L.GeoJSON.coordsToLatLngs([\n    [113.8677978515625,  22.39261853713738],\n    [113.86917114257811, 22.42753195115699],\n    [113.9234161376953,  22.462436586653148],\n    [113.94813537597656, 22.473858013487614],\n    [113.9783477783203,  22.49923558968306],\n    [113.99688720703125, 22.51192263246886],\n    [114.01336669921875, 22.501138720300254],\n    [114.02503967285155, 22.508116641853675]\n  ])\n], {\n  draggable: true,\n  transform: true,\n  color: '#e90'\n}).bindPopup('MultiPolyline').addTo(map);\n// multiPolyline.transform.enable();\n\nvar layers = [polygon, polyline, multiPolyline, multiPolygon, polygonWithHole];\n\nfunction update() {\n  L.Util.requestAnimFrame(function() {\n    var dragging = document.querySelector('#dragging').checked;\n    var scaling = document.querySelector('#scaling').checked;\n    var rotation = document.querySelector('#rotation').checked;\n    var uniform  = document.querySelector('#uniform').checked;\n\n    layers.forEach(function(layer) {\n\n      if (layer.dragging) {\n        layer.dragging[dragging ? 'enable': 'disable']();\n      } else {\n        layer.eachLayer(function(sublayer) {\n          sublayer.dragging[dragging ? 'enable': 'disable']();\n        });\n      }\n\n\n      layer.transform.setOptions({\n        scaling: scaling,\n        rotation: rotation,\n        uniformScaling: uniform\n      }).enable();\n    });\n  });\n}\n\n[].slice.call(document.querySelectorAll('input[type=checkbox]'))\n.forEach(function(checkbox) {\n  L.DomEvent.on(checkbox, 'change', update);\n});\n\nupdate();\n","var L = require('leaflet');\nrequire('leaflet-path-drag');\nrequire('./src/Util');\nrequire('./src/Matrix');\nrequire('./src/Path.Transform');\n","require('./src/SVG');\nrequire('./src/SVG.VML');\nrequire('./src/Canvas');\nrequire('./src/Path.Transform');\nrequire('./src/Path.Drag');\n\nmodule.exports = L.Path.Drag;\n","L.Util.trueFn = function() {\n  return true;\n};\n\nL.Canvas.include({\n\n  /**\n   * Do nothing\n   * @param  {L.Path} layer\n   */\n  _resetTransformPath: function(layer) {\n    if (!this._containerCopy) return;\n\n    delete this._containerCopy;\n\n    if (layer._containsPoint_) {\n      layer._containsPoint = layer._containsPoint_;\n      delete layer._containsPoint_;\n\n      this._requestRedraw(layer);\n    }\n  },\n\n\n  /**\n   * Algorithm outline:\n   *\n   * 1. pre-transform - clear the path out of the canvas, copy canvas state\n   * 2. at every frame:\n   *    2.1. save\n   *    2.2. redraw the canvas from saved one\n   *    2.3. transform\n   *    2.4. draw path\n   *    2.5. restore\n   * 3. Repeat\n   *\n   * @param  {L.Path}         layer\n   * @param  {Array.<Number>} matrix\n   */\n  transformPath: function(layer, matrix) {\n    var copy   = this._containerCopy;\n    var ctx    = this._ctx, copyCtx;\n    var m      = L.Browser.retina ? 2 : 1;\n    var bounds = this._bounds;\n    var size   = bounds.getSize();\n    var pos    = bounds.min;\n\n    if (!copy) { // get copy of all rendered layers\n      copy = this._containerCopy = document.createElement('canvas');\n      copyCtx = copy.getContext('2d');\n      // document.body.appendChild(copy);\n\n      copy.width  = m * size.x;\n      copy.height = m * size.y;\n\n      this._removePath(layer);\n      this._redraw();\n\n      copyCtx.translate(m * bounds.min.x, m * bounds.min.y);\n      copyCtx.drawImage(this._container, 0, 0);\n      this._initPath(layer);\n\n      // avoid flickering because of the 'mouseover's\n      layer._containsPoint_ = layer._containsPoint;\n      layer._containsPoint = L.Util.trueFn;\n    }\n\n    ctx.save();\n    ctx.clearRect(pos.x, pos.y, size.x * m, size.y * m);\n    ctx.setTransform(1, 0, 0, 1, 0, 0);\n    ctx.restore();\n    ctx.save();\n\n    ctx.drawImage(this._containerCopy, 0, 0, size.x, size.y);\n    ctx.transform.apply(ctx, matrix);\n\n    // now draw one layer only\n    this._drawing = true;\n    layer._updatePath();\n    this._drawing = false;\n\n    ctx.restore();\n  }\n\n});\n","/**\n * Drag handler\n * @class L.Path.Drag\n * @extends {L.Handler}\n */\nL.Handler.PathDrag = L.Handler.extend( /** @lends  L.Path.Drag.prototype */ {\n\n  statics: {\n    DRAGGING_CLS: 'leaflet-path-draggable',\n  },\n\n\n  /**\n   * @param  {L.Path} path\n   * @constructor\n   */\n  initialize: function(path) {\n\n    /**\n     * @type {L.Path}\n     */\n    this._path = path;\n\n    /**\n     * @type {Array.<Number>}\n     */\n    this._matrix = null;\n\n    /**\n     * @type {L.Point}\n     */\n    this._startPoint = null;\n\n    /**\n     * @type {L.Point}\n     */\n    this._dragStartPoint = null;\n\n    /**\n     * @type {Boolean}\n     */\n    this._mapDraggingWasEnabled = false;\n\n  },\n\n  /**\n   * Enable dragging\n   */\n  addHooks: function() {\n    this._path.on('mousedown', this._onDragStart, this);\n\n    this._path.options.className = this._path.options.className ?\n        (this._path.options.className + ' ' + L.Handler.PathDrag.DRAGGING_CLS) :\n         L.Handler.PathDrag.DRAGGING_CLS;\n\n    if (this._path._path) {\n      L.DomUtil.addClass(this._path._path, L.Handler.PathDrag.DRAGGING_CLS);\n    }\n  },\n\n  /**\n   * Disable dragging\n   */\n  removeHooks: function() {\n    this._path.off('mousedown', this._onDragStart, this);\n\n    this._path.options.className = this._path.options.className\n      .replace(new RegExp('\\\\s+' + L.Handler.PathDrag.DRAGGING_CLS), '');\n    if (this._path._path) {\n      L.DomUtil.removeClass(this._path._path, L.Handler.PathDrag.DRAGGING_CLS);\n    }\n  },\n\n  /**\n   * @return {Boolean}\n   */\n  moved: function() {\n    return this._path._dragMoved;\n  },\n\n  /**\n   * Start drag\n   * @param  {L.MouseEvent} evt\n   */\n  _onDragStart: function(evt) {\n    var eventType = evt.originalEvent._simulated ? 'touchstart' : evt.originalEvent.type;\n\n    this._mapDraggingWasEnabled = false;\n    this._startPoint = evt.containerPoint.clone();\n    this._dragStartPoint = evt.containerPoint.clone();\n    this._matrix = [1, 0, 0, 1, 0, 0];\n    L.DomEvent.stop(evt.originalEvent);\n\n    L.DomUtil.addClass(this._path._renderer._container, 'leaflet-interactive');\n    L.DomEvent\n      .on(document, L.Draggable.MOVE[eventType], this._onDrag,    this)\n      .on(document, L.Draggable.END[eventType],  this._onDragEnd, this);\n\n    if (this._path._map.dragging.enabled()) {\n      // I guess it's required because mousdown gets simulated with a delay\n      //this._path._map.dragging._draggable._onUp(evt);\n\n      this._path._map.dragging.disable();\n      this._mapDraggingWasEnabled = true;\n    }\n    this._path._dragMoved = false;\n\n    if (this._path._popup) { // that might be a case on touch devices as well\n      this._path._popup._close();\n    }\n\n    this._replaceCoordGetters(evt);\n  },\n\n  /**\n   * Dragging\n   * @param  {L.MouseEvent} evt\n   */\n  _onDrag: function(evt) {\n    L.DomEvent.stop(evt);\n\n    var first = (evt.touches && evt.touches.length >= 1 ? evt.touches[0] : evt);\n    var containerPoint = this._path._map.mouseEventToContainerPoint(first);\n\n    // skip taps\n    if (evt.type === 'touchmove' && !this._path._dragMoved) {\n      var totalMouseDragDistance = this._dragStartPoint.distanceTo(containerPoint);\n      if (totalMouseDragDistance <= this._path._map.options.tapTolerance) {\n        return;\n      }\n    }\n\n    var x = containerPoint.x;\n    var y = containerPoint.y;\n\n    var dx = x - this._startPoint.x;\n    var dy = y - this._startPoint.y;\n\n    // Send events only if point was moved\n    if (dx || dy) {\n      if (!this._path._dragMoved) {\n        this._path._dragMoved = true;\n        this._path.fire('dragstart', evt);\n        // we don't want that to happen on click\n        this._path.bringToFront();\n      }\n\n      this._matrix[4] += dx;\n      this._matrix[5] += dy;\n\n      this._startPoint.x = x;\n      this._startPoint.y = y;\n\n      this._path.fire('predrag', evt);\n      this._path._transform(this._matrix);\n      this._path.fire('drag', evt);\n    }\n  },\n\n  /**\n   * Dragging stopped, apply\n   * @param  {L.MouseEvent} evt\n   */\n  _onDragEnd: function(evt) {\n    var containerPoint = this._path._map.mouseEventToContainerPoint(evt);\n    var moved = this.moved();\n\n    // apply matrix\n    if (moved) {\n      this._transformPoints(this._matrix);\n      this._path._updatePath();\n      this._path._project();\n      this._path._transform(null);\n\n      L.DomEvent.stop(evt);\n    }\n\n\n    L.DomEvent\n      .off(document, 'mousemove touchmove', this._onDrag, this)\n      .off(document, 'mouseup touchend',    this._onDragEnd, this);\n\n    this._restoreCoordGetters();\n\n    // consistency\n    if (moved) {\n      this._path.fire('dragend', {\n        distance: Math.sqrt(\n          L.LineUtil._sqDist(this._dragStartPoint, containerPoint)\n        )\n      });\n\n      // hack for skipping the click in canvas-rendered layers\n      var contains = this._path._containsPoint;\n      this._path._containsPoint = L.Util.falseFn;\n      L.Util.requestAnimFrame(function() {\n        L.DomEvent._skipped({ type: 'click' });\n        this._path._containsPoint = contains;\n      }, this);\n    }\n\n    this._matrix          = null;\n    this._startPoint      = null;\n    this._dragStartPoint  = null;\n    this._path._dragMoved = false;\n\n    if (this._mapDraggingWasEnabled) {\n      if (moved) L.DomEvent._fakeStop({ type: 'click' });\n      this._path._map.dragging.enable();\n    }\n  },\n\n\n  /**\n   * Applies transformation, does it in one sweep for performance,\n   * so don't be surprised about the code repetition.\n   *\n   * [ x ]   [ a  b  tx ] [ x ]   [ a * x + b * y + tx ]\n   * [ y ] = [ c  d  ty ] [ y ] = [ c * x + d * y + ty ]\n   *\n   * @param {Array.<Number>} matrix\n   */\n  _transformPoints: function(matrix, dest) {\n    var path = this._path;\n    var i, len, latlng;\n\n    var px = L.point(matrix[4], matrix[5]);\n\n    var crs = path._map.options.crs;\n    var transformation = crs.transformation;\n    var scale = crs.scale(path._map.getZoom());\n    var projection = crs.projection;\n\n    var diff = transformation.untransform(px, scale)\n      .subtract(transformation.untransform(L.point(0, 0), scale));\n    var applyTransform = !dest;\n\n    path._bounds = new L.LatLngBounds();\n\n    // console.time('transform');\n    // all shifts are in-place\n    if (path._point) { // L.Circle\n      dest = projection.unproject(\n        projection.project(path._latlng)._add(diff));\n      if (applyTransform) {\n        path._latlng = dest;\n        path._point._add(px);\n      }\n    } else if (path._rings || path._parts) { // everything else\n      var rings   = path._rings || path._parts;\n      var latlngs = path._latlngs;\n      dest = dest || latlngs;\n      if (!L.Util.isArray(latlngs[0])) { // polyline\n        latlngs = [latlngs];\n        dest    = [dest];\n      }\n      for (i = 0, len = rings.length; i < len; i++) {\n        dest[i] = dest[i] || [];\n        for (var j = 0, jj = rings[i].length; j < jj; j++) {\n          latlng     = latlngs[i][j];\n          dest[i][j] = projection\n            .unproject(projection.project(latlng)._add(diff));\n          if (applyTransform) {\n            path._bounds.extend(latlngs[i][j]);\n            rings[i][j]._add(px);\n          }\n        }\n      }\n    }\n    return dest;\n    // console.timeEnd('transform');\n  },\n\n\n\n  /**\n   * If you want to read the latlngs during the drag - your right,\n   * but they have to be transformed\n   */\n  _replaceCoordGetters: function() {\n    if (this._path.getLatLng) { // Circle, CircleMarker\n      this._path.getLatLng_ = this._path.getLatLng;\n      this._path.getLatLng = L.Util.bind(function() {\n        return this.dragging._transformPoints(this.dragging._matrix, {});\n      }, this._path);\n    } else if (this._path.getLatLngs) {\n      this._path.getLatLngs_ = this._path.getLatLngs;\n      this._path.getLatLngs = L.Util.bind(function() {\n        return this.dragging._transformPoints(this.dragging._matrix, []);\n      }, this._path);\n    }\n  },\n\n\n  /**\n   * Put back the getters\n   */\n  _restoreCoordGetters: function() {\n    if (this._path.getLatLng_) {\n      this._path.getLatLng = this._path.getLatLng_;\n      delete this._path.getLatLng_;\n    } else if (this._path.getLatLngs_) {\n      this._path.getLatLngs = this._path.getLatLngs_;\n      delete this._path.getLatLngs_;\n    }\n  }\n\n});\n\n\n/**\n * @param  {L.Path} layer\n * @return {L.Path}\n */\nL.Handler.PathDrag.makeDraggable = function(layer) {\n  layer.dragging = new L.Handler.PathDrag(layer);\n  return layer;\n};\n\n\n/**\n * Also expose as a method\n * @return {L.Path}\n */\nL.Path.prototype.makeDraggable = function() {\n  return L.Handler.PathDrag.makeDraggable(this);\n};\n\n\nL.Path.addInitHook(function() {\n  if (this.options.draggable) {\n    // ensure interactive\n    this.options.interactive = true;\n\n    if (this.dragging) {\n      this.dragging.enable();\n    } else {\n      L.Handler.PathDrag.makeDraggable(this);\n      this.dragging.enable();\n    }\n  } else if (this.dragging) {\n    this.dragging.disable();\n  }\n});\n","/**\n * Leaflet vector features drag functionality\n * @author Alexander Milevski <info@w8r.name>\n * @preserve\n */\n\n/**\n * Matrix transform path for SVG/VML\n * Renderer-independent\n */\nL.Path.include({\n\n\t/**\n\t * Applies matrix transformation to SVG\n\t * @param {Array.<Number>?} matrix\n\t */\n\t_transform: function(matrix) {\n\t\tif (this._renderer) {\n\t\t\tif (matrix) {\n\t\t\t\tthis._renderer.transformPath(this, matrix);\n\t\t\t} else {\n\t\t\t\t// reset transform matrix\n\t\t\t\tthis._renderer._resetTransformPath(this);\n\t\t\t\tthis._update();\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\t/**\n\t * Check if the feature was dragged, that'll supress the click event\n\t * on mouseup. That fixes popups for example\n\t *\n\t * @param  {MouseEvent} e\n\t */\n\t_onMouseClick: function(e) {\n\t\tif ((this.dragging && this.dragging.moved()) ||\n\t\t\t(this._map.dragging && this._map.dragging.moved())) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._fireMouseEvent(e);\n\t}\n\n});\n","L.SVG.include(!L.Browser.vml ? {} : {\n\n\t/**\n\t * Reset transform matrix\n\t */\n\t_resetTransformPath: function(layer) {\n\t\tif (layer._skew) {\n\t\t\t// super important! workaround for a 'jumping' glitch:\n\t\t\t// disable transform before removing it\n\t\t\tlayer._skew.on = false;\n\t\t\tlayer._path.removeChild(layer._skew);\n\t\t\tlayer._skew = null;\n\t\t}\n\t},\n\n\t/**\n\t * Applies matrix transformation to VML\n\t * @param {L.Path}         layer\n\t * @param {Array.<Number>} matrix\n\t */\n\ttransformPath: function(layer, matrix) {\n\t\tvar skew = layer._skew;\n\n\t\tif (!skew) {\n\t\t\tskew = L.SVG.create('skew');\n\t\t\tlayer._path.appendChild(skew);\n\t\t\tskew.style.behavior = 'url(#default#VML)';\n\t\t\tlayer._skew = skew;\n\t\t}\n\n\t\t// handle skew/translate separately, cause it's broken\n\t\tvar mt = matrix[0].toFixed(8) + ' ' + matrix[1].toFixed(8) + ' ' +\n\t\t\tmatrix[2].toFixed(8) + ' ' + matrix[3].toFixed(8) + ' 0 0';\n\t\tvar offset = Math.floor(matrix[4]).toFixed() + ', ' +\n\t\t\tMath.floor(matrix[5]).toFixed() + '';\n\n\t\tvar s = this._path.style;\n\t\tvar l = parseFloat(s.left);\n\t\tvar t = parseFloat(s.top);\n\t\tvar w = parseFloat(s.width);\n\t\tvar h = parseFloat(s.height);\n\n\t\tif (isNaN(l))       l = 0;\n\t\tif (isNaN(t))       t = 0;\n\t\tif (isNaN(w) || !w) w = 1;\n\t\tif (isNaN(h) || !h) h = 1;\n\n\t\tvar origin = (-l / w - 0.5).toFixed(8) + ' ' + (-t / h - 0.5).toFixed(8);\n\n\t\tskew.on = 'f';\n\t\tskew.matrix = mt;\n\t\tskew.origin = origin;\n\t\tskew.offset = offset;\n\t\tskew.on = true;\n\t}\n\n});\n","L.SVG.include({\n\n\t/**\n\t * Reset transform matrix\n\t */\n\t_resetTransformPath: function(layer) {\n\t\tlayer._path.setAttributeNS(null, 'transform', '');\n\t},\n\n\t/**\n\t * Applies matrix transformation to SVG\n\t * @param {L.Path}         layer\n\t * @param {Array.<Number>} matrix\n\t */\n\ttransformPath: function(layer, matrix) {\n\t\tlayer._path.setAttributeNS(null, 'transform',\n\t\t\t'matrix(' + matrix.join(' ') + ')');\n\t}\n\n});\n","/*\n Leaflet 1.0.3, a JS library for interactive maps. http://leafletjs.com\n (c) 2010-2016 Vladimir Agafonkin, (c) 2010-2011 CloudMade\n*/\n(function (window, document, undefined) {\r\nvar L = {\r\n\tversion: \"1.0.3\"\r\n};\r\n\r\nfunction expose() {\r\n\tvar oldL = window.L;\r\n\r\n\tL.noConflict = function () {\r\n\t\twindow.L = oldL;\r\n\t\treturn this;\r\n\t};\r\n\r\n\twindow.L = L;\r\n}\r\n\r\n// define Leaflet for Node module pattern loaders, including Browserify\r\nif (typeof module === 'object' && typeof module.exports === 'object') {\r\n\tmodule.exports = L;\r\n\r\n// define Leaflet as an AMD module\r\n} else if (typeof define === 'function' && define.amd) {\r\n\tdefine(L);\r\n}\r\n\r\n// define Leaflet as a global L variable, saving the original L to restore later if needed\r\nif (typeof window !== 'undefined') {\r\n\texpose();\r\n}\r\n\n\n\n/*\r\n * @namespace Util\r\n *\r\n * Various utility functions, used by Leaflet internally.\r\n */\r\n\r\nL.Util = {\r\n\r\n\t// @function extend(dest: Object, src?: Object): Object\r\n\t// Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut.\r\n\textend: function (dest) {\r\n\t\tvar i, j, len, src;\r\n\r\n\t\tfor (j = 1, len = arguments.length; j < len; j++) {\r\n\t\t\tsrc = arguments[j];\r\n\t\t\tfor (i in src) {\r\n\t\t\t\tdest[i] = src[i];\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn dest;\r\n\t},\r\n\r\n\t// @function create(proto: Object, properties?: Object): Object\r\n\t// Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create)\r\n\tcreate: Object.create || (function () {\r\n\t\tfunction F() {}\r\n\t\treturn function (proto) {\r\n\t\t\tF.prototype = proto;\r\n\t\t\treturn new F();\r\n\t\t};\r\n\t})(),\r\n\r\n\t// @function bind(fn: Function, …): Function\r\n\t// Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).\r\n\t// Has a `L.bind()` shortcut.\r\n\tbind: function (fn, obj) {\r\n\t\tvar slice = Array.prototype.slice;\r\n\r\n\t\tif (fn.bind) {\r\n\t\t\treturn fn.bind.apply(fn, slice.call(arguments, 1));\r\n\t\t}\r\n\r\n\t\tvar args = slice.call(arguments, 2);\r\n\r\n\t\treturn function () {\r\n\t\t\treturn fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);\r\n\t\t};\r\n\t},\r\n\r\n\t// @function stamp(obj: Object): Number\r\n\t// Returns the unique ID of an object, assiging it one if it doesn't have it.\r\n\tstamp: function (obj) {\r\n\t\t/*eslint-disable */\r\n\t\tobj._leaflet_id = obj._leaflet_id || ++L.Util.lastId;\r\n\t\treturn obj._leaflet_id;\r\n\t\t/*eslint-enable */\r\n\t},\r\n\r\n\t// @property lastId: Number\r\n\t// Last unique ID used by [`stamp()`](#util-stamp)\r\n\tlastId: 0,\r\n\r\n\t// @function throttle(fn: Function, time: Number, context: Object): Function\r\n\t// Returns a function which executes function `fn` with the given scope `context`\r\n\t// (so that the `this` keyword refers to `context` inside `fn`'s code). The function\r\n\t// `fn` will be called no more than one time per given amount of `time`. The arguments\r\n\t// received by the bound function will be any arguments passed when binding the\r\n\t// function, followed by any arguments passed when invoking the bound function.\r\n\t// Has an `L.bind` shortcut.\r\n\tthrottle: function (fn, time, context) {\r\n\t\tvar lock, args, wrapperFn, later;\r\n\r\n\t\tlater = function () {\r\n\t\t\t// reset lock and call if queued\r\n\t\t\tlock = false;\r\n\t\t\tif (args) {\r\n\t\t\t\twrapperFn.apply(context, args);\r\n\t\t\t\targs = false;\r\n\t\t\t}\r\n\t\t};\r\n\r\n\t\twrapperFn = function () {\r\n\t\t\tif (lock) {\r\n\t\t\t\t// called too soon, queue to call later\r\n\t\t\t\targs = arguments;\r\n\r\n\t\t\t} else {\r\n\t\t\t\t// call and lock until later\r\n\t\t\t\tfn.apply(context, arguments);\r\n\t\t\t\tsetTimeout(later, time);\r\n\t\t\t\tlock = true;\r\n\t\t\t}\r\n\t\t};\r\n\r\n\t\treturn wrapperFn;\r\n\t},\r\n\r\n\t// @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number\r\n\t// Returns the number `num` modulo `range` in such a way so it lies within\r\n\t// `range[0]` and `range[1]`. The returned value will be always smaller than\r\n\t// `range[1]` unless `includeMax` is set to `true`.\r\n\twrapNum: function (x, range, includeMax) {\r\n\t\tvar max = range[1],\r\n\t\t    min = range[0],\r\n\t\t    d = max - min;\r\n\t\treturn x === max && includeMax ? x : ((x - min) % d + d) % d + min;\r\n\t},\r\n\r\n\t// @function falseFn(): Function\r\n\t// Returns a function which always returns `false`.\r\n\tfalseFn: function () { return false; },\r\n\r\n\t// @function formatNum(num: Number, digits?: Number): Number\r\n\t// Returns the number `num` rounded to `digits` decimals, or to 5 decimals by default.\r\n\tformatNum: function (num, digits) {\r\n\t\tvar pow = Math.pow(10, digits || 5);\r\n\t\treturn Math.round(num * pow) / pow;\r\n\t},\r\n\r\n\t// @function trim(str: String): String\r\n\t// Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)\r\n\ttrim: function (str) {\r\n\t\treturn str.trim ? str.trim() : str.replace(/^\\s+|\\s+$/g, '');\r\n\t},\r\n\r\n\t// @function splitWords(str: String): String[]\r\n\t// Trims and splits the string on whitespace and returns the array of parts.\r\n\tsplitWords: function (str) {\r\n\t\treturn L.Util.trim(str).split(/\\s+/);\r\n\t},\r\n\r\n\t// @function setOptions(obj: Object, options: Object): Object\r\n\t// Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut.\r\n\tsetOptions: function (obj, options) {\r\n\t\tif (!obj.hasOwnProperty('options')) {\r\n\t\t\tobj.options = obj.options ? L.Util.create(obj.options) : {};\r\n\t\t}\r\n\t\tfor (var i in options) {\r\n\t\t\tobj.options[i] = options[i];\r\n\t\t}\r\n\t\treturn obj.options;\r\n\t},\r\n\r\n\t// @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String\r\n\t// Converts an object into a parameter URL string, e.g. `{a: \"foo\", b: \"bar\"}`\r\n\t// translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will\r\n\t// be appended at the end. If `uppercase` is `true`, the parameter names will\r\n\t// be uppercased (e.g. `'?A=foo&B=bar'`)\r\n\tgetParamString: function (obj, existingUrl, uppercase) {\r\n\t\tvar params = [];\r\n\t\tfor (var i in obj) {\r\n\t\t\tparams.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));\r\n\t\t}\r\n\t\treturn ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');\r\n\t},\r\n\r\n\t// @function template(str: String, data: Object): String\r\n\t// Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'`\r\n\t// and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string\r\n\t// `('Hello foo, bar')`. You can also specify functions instead of strings for\r\n\t// data values — they will be evaluated passing `data` as an argument.\r\n\ttemplate: function (str, data) {\r\n\t\treturn str.replace(L.Util.templateRe, function (str, key) {\r\n\t\t\tvar value = data[key];\r\n\r\n\t\t\tif (value === undefined) {\r\n\t\t\t\tthrow new Error('No value provided for variable ' + str);\r\n\r\n\t\t\t} else if (typeof value === 'function') {\r\n\t\t\t\tvalue = value(data);\r\n\t\t\t}\r\n\t\t\treturn value;\r\n\t\t});\r\n\t},\r\n\r\n\ttemplateRe: /\\{ *([\\w_\\-]+) *\\}/g,\r\n\r\n\t// @function isArray(obj): Boolean\r\n\t// Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)\r\n\tisArray: Array.isArray || function (obj) {\r\n\t\treturn (Object.prototype.toString.call(obj) === '[object Array]');\r\n\t},\r\n\r\n\t// @function indexOf(array: Array, el: Object): Number\r\n\t// Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)\r\n\tindexOf: function (array, el) {\r\n\t\tfor (var i = 0; i < array.length; i++) {\r\n\t\t\tif (array[i] === el) { return i; }\r\n\t\t}\r\n\t\treturn -1;\r\n\t},\r\n\r\n\t// @property emptyImageUrl: String\r\n\t// Data URI string containing a base64-encoded empty GIF image.\r\n\t// Used as a hack to free memory from unused images on WebKit-powered\r\n\t// mobile devices (by setting image `src` to this string).\r\n\temptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='\r\n};\r\n\r\n(function () {\r\n\t// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/\r\n\r\n\tfunction getPrefixed(name) {\r\n\t\treturn window['webkit' + name] || window['moz' + name] || window['ms' + name];\r\n\t}\r\n\r\n\tvar lastTime = 0;\r\n\r\n\t// fallback for IE 7-8\r\n\tfunction timeoutDefer(fn) {\r\n\t\tvar time = +new Date(),\r\n\t\t    timeToCall = Math.max(0, 16 - (time - lastTime));\r\n\r\n\t\tlastTime = time + timeToCall;\r\n\t\treturn window.setTimeout(fn, timeToCall);\r\n\t}\r\n\r\n\tvar requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer,\r\n\t    cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||\r\n\t               getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };\r\n\r\n\r\n\t// @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number\r\n\t// Schedules `fn` to be executed when the browser repaints. `fn` is bound to\r\n\t// `context` if given. When `immediate` is set, `fn` is called immediately if\r\n\t// the browser doesn't have native support for\r\n\t// [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame),\r\n\t// otherwise it's delayed. Returns a request ID that can be used to cancel the request.\r\n\tL.Util.requestAnimFrame = function (fn, context, immediate) {\r\n\t\tif (immediate && requestFn === timeoutDefer) {\r\n\t\t\tfn.call(context);\r\n\t\t} else {\r\n\t\t\treturn requestFn.call(window, L.bind(fn, context));\r\n\t\t}\r\n\t};\r\n\r\n\t// @function cancelAnimFrame(id: Number): undefined\r\n\t// Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame).\r\n\tL.Util.cancelAnimFrame = function (id) {\r\n\t\tif (id) {\r\n\t\t\tcancelFn.call(window, id);\r\n\t\t}\r\n\t};\r\n})();\r\n\r\n// shortcuts for most used utility functions\r\nL.extend = L.Util.extend;\r\nL.bind = L.Util.bind;\r\nL.stamp = L.Util.stamp;\r\nL.setOptions = L.Util.setOptions;\r\n\n\n\n\r\n// @class Class\r\n// @aka L.Class\r\n\r\n// @section\r\n// @uninheritable\r\n\r\n// Thanks to John Resig and Dean Edwards for inspiration!\r\n\r\nL.Class = function () {};\r\n\r\nL.Class.extend = function (props) {\r\n\r\n\t// @function extend(props: Object): Function\r\n\t// [Extends the current class](#class-inheritance) given the properties to be included.\r\n\t// Returns a Javascript function that is a class constructor (to be called with `new`).\r\n\tvar NewClass = function () {\r\n\r\n\t\t// call the constructor\r\n\t\tif (this.initialize) {\r\n\t\t\tthis.initialize.apply(this, arguments);\r\n\t\t}\r\n\r\n\t\t// call all constructor hooks\r\n\t\tthis.callInitHooks();\r\n\t};\r\n\r\n\tvar parentProto = NewClass.__super__ = this.prototype;\r\n\r\n\tvar proto = L.Util.create(parentProto);\r\n\tproto.constructor = NewClass;\r\n\r\n\tNewClass.prototype = proto;\r\n\r\n\t// inherit parent's statics\r\n\tfor (var i in this) {\r\n\t\tif (this.hasOwnProperty(i) && i !== 'prototype') {\r\n\t\t\tNewClass[i] = this[i];\r\n\t\t}\r\n\t}\r\n\r\n\t// mix static properties into the class\r\n\tif (props.statics) {\r\n\t\tL.extend(NewClass, props.statics);\r\n\t\tdelete props.statics;\r\n\t}\r\n\r\n\t// mix includes into the prototype\r\n\tif (props.includes) {\r\n\t\tL.Util.extend.apply(null, [proto].concat(props.includes));\r\n\t\tdelete props.includes;\r\n\t}\r\n\r\n\t// merge options\r\n\tif (proto.options) {\r\n\t\tprops.options = L.Util.extend(L.Util.create(proto.options), props.options);\r\n\t}\r\n\r\n\t// mix given properties into the prototype\r\n\tL.extend(proto, props);\r\n\r\n\tproto._initHooks = [];\r\n\r\n\t// add method for calling all hooks\r\n\tproto.callInitHooks = function () {\r\n\r\n\t\tif (this._initHooksCalled) { return; }\r\n\r\n\t\tif (parentProto.callInitHooks) {\r\n\t\t\tparentProto.callInitHooks.call(this);\r\n\t\t}\r\n\r\n\t\tthis._initHooksCalled = true;\r\n\r\n\t\tfor (var i = 0, len = proto._initHooks.length; i < len; i++) {\r\n\t\t\tproto._initHooks[i].call(this);\r\n\t\t}\r\n\t};\r\n\r\n\treturn NewClass;\r\n};\r\n\r\n\r\n// @function include(properties: Object): this\r\n// [Includes a mixin](#class-includes) into the current class.\r\nL.Class.include = function (props) {\r\n\tL.extend(this.prototype, props);\r\n\treturn this;\r\n};\r\n\r\n// @function mergeOptions(options: Object): this\r\n// [Merges `options`](#class-options) into the defaults of the class.\r\nL.Class.mergeOptions = function (options) {\r\n\tL.extend(this.prototype.options, options);\r\n\treturn this;\r\n};\r\n\r\n// @function addInitHook(fn: Function): this\r\n// Adds a [constructor hook](#class-constructor-hooks) to the class.\r\nL.Class.addInitHook = function (fn) { // (Function) || (String, args...)\r\n\tvar args = Array.prototype.slice.call(arguments, 1);\r\n\r\n\tvar init = typeof fn === 'function' ? fn : function () {\r\n\t\tthis[fn].apply(this, args);\r\n\t};\r\n\r\n\tthis.prototype._initHooks = this.prototype._initHooks || [];\r\n\tthis.prototype._initHooks.push(init);\r\n\treturn this;\r\n};\r\n\n\n\n/*\r\n * @class Evented\r\n * @aka L.Evented\r\n * @inherits Class\r\n *\r\n * A set of methods shared between event-powered classes (like `Map` and `Marker`). Generally, events allow you to execute some function when something happens with an object (e.g. the user clicks on the map, causing the map to fire `'click'` event).\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * map.on('click', function(e) {\r\n * \talert(e.latlng);\r\n * } );\r\n * ```\r\n *\r\n * Leaflet deals with event listeners by reference, so if you want to add a listener and then remove it, define it as a function:\r\n *\r\n * ```js\r\n * function onClick(e) { ... }\r\n *\r\n * map.on('click', onClick);\r\n * map.off('click', onClick);\r\n * ```\r\n */\r\n\r\n\r\nL.Evented = L.Class.extend({\r\n\r\n\t/* @method on(type: String, fn: Function, context?: Object): this\r\n\t * Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`).\r\n\t *\r\n\t * @alternative\r\n\t * @method on(eventMap: Object): this\r\n\t * Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n\t */\r\n\ton: function (types, fn, context) {\r\n\r\n\t\t// types can be a map of types/handlers\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\t// we don't process space-separated events here for performance;\r\n\t\t\t\t// it's a hot path since Layer uses the on(obj) syntax\r\n\t\t\t\tthis._on(type, types[type], fn);\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\t\t\t// types can be a string of space-separated words\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._on(types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t/* @method off(type: String, fn?: Function, context?: Object): this\r\n\t * Removes a previously added listener function. If no function is specified, it will remove all the listeners of that particular event from the object. Note that if you passed a custom context to `on`, you must pass the same context to `off` in order to remove the listener.\r\n\t *\r\n\t * @alternative\r\n\t * @method off(eventMap: Object): this\r\n\t * Removes a set of type/listener pairs.\r\n\t *\r\n\t * @alternative\r\n\t * @method off: this\r\n\t * Removes all listeners to all events on the object.\r\n\t */\r\n\toff: function (types, fn, context) {\r\n\r\n\t\tif (!types) {\r\n\t\t\t// clear all listeners if called without arguments\r\n\t\t\tdelete this._events;\r\n\r\n\t\t} else if (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis._off(type, types[type], fn);\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._off(types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// attach listener (without syntactic sugar now)\r\n\t_on: function (type, fn, context) {\r\n\t\tthis._events = this._events || {};\r\n\r\n\t\t/* get/init listeners for type */\r\n\t\tvar typeListeners = this._events[type];\r\n\t\tif (!typeListeners) {\r\n\t\t\ttypeListeners = [];\r\n\t\t\tthis._events[type] = typeListeners;\r\n\t\t}\r\n\r\n\t\tif (context === this) {\r\n\t\t\t// Less memory footprint.\r\n\t\t\tcontext = undefined;\r\n\t\t}\r\n\t\tvar newListener = {fn: fn, ctx: context},\r\n\t\t    listeners = typeListeners;\r\n\r\n\t\t// check if fn already there\r\n\t\tfor (var i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\tif (listeners[i].fn === fn && listeners[i].ctx === context) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tlisteners.push(newListener);\r\n\t},\r\n\r\n\t_off: function (type, fn, context) {\r\n\t\tvar listeners,\r\n\t\t    i,\r\n\t\t    len;\r\n\r\n\t\tif (!this._events) { return; }\r\n\r\n\t\tlisteners = this._events[type];\r\n\r\n\t\tif (!listeners) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (!fn) {\r\n\t\t\t// Set all removed listeners to noop so they are not called if remove happens in fire\r\n\t\t\tfor (i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\t\tlisteners[i].fn = L.Util.falseFn;\r\n\t\t\t}\r\n\t\t\t// clear all listeners for a type if function isn't specified\r\n\t\t\tdelete this._events[type];\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (context === this) {\r\n\t\t\tcontext = undefined;\r\n\t\t}\r\n\r\n\t\tif (listeners) {\r\n\r\n\t\t\t// find fn and remove it\r\n\t\t\tfor (i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\t\tvar l = listeners[i];\r\n\t\t\t\tif (l.ctx !== context) { continue; }\r\n\t\t\t\tif (l.fn === fn) {\r\n\r\n\t\t\t\t\t// set the removed listener to noop so that's not called if remove happens in fire\r\n\t\t\t\t\tl.fn = L.Util.falseFn;\r\n\r\n\t\t\t\t\tif (this._firingCount) {\r\n\t\t\t\t\t\t/* copy array in case events are being fired */\r\n\t\t\t\t\t\tthis._events[type] = listeners = listeners.slice();\r\n\t\t\t\t\t}\r\n\t\t\t\t\tlisteners.splice(i, 1);\r\n\r\n\t\t\t\t\treturn;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t// @method fire(type: String, data?: Object, propagate?: Boolean): this\r\n\t// Fires an event of the specified type. You can optionally provide an data\r\n\t// object — the first argument of the listener function will contain its\r\n\t// properties. The event can optionally be propagated to event parents.\r\n\tfire: function (type, data, propagate) {\r\n\t\tif (!this.listens(type, propagate)) { return this; }\r\n\r\n\t\tvar event = L.Util.extend({}, data, {type: type, target: this});\r\n\r\n\t\tif (this._events) {\r\n\t\t\tvar listeners = this._events[type];\r\n\r\n\t\t\tif (listeners) {\r\n\t\t\t\tthis._firingCount = (this._firingCount + 1) || 1;\r\n\t\t\t\tfor (var i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\t\t\tvar l = listeners[i];\r\n\t\t\t\t\tl.fn.call(l.ctx || this, event);\r\n\t\t\t\t}\r\n\r\n\t\t\t\tthis._firingCount--;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (propagate) {\r\n\t\t\t// propagate the event to parents (set with addEventParent)\r\n\t\t\tthis._propagateEvent(event);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method listens(type: String): Boolean\r\n\t// Returns `true` if a particular event type has any listeners attached to it.\r\n\tlistens: function (type, propagate) {\r\n\t\tvar listeners = this._events && this._events[type];\r\n\t\tif (listeners && listeners.length) { return true; }\r\n\r\n\t\tif (propagate) {\r\n\t\t\t// also check parents for listeners if event propagates\r\n\t\t\tfor (var id in this._eventParents) {\r\n\t\t\t\tif (this._eventParents[id].listens(type, propagate)) { return true; }\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn false;\r\n\t},\r\n\r\n\t// @method once(…): this\r\n\t// Behaves as [`on(…)`](#evented-on), except the listener will only get fired once and then removed.\r\n\tonce: function (types, fn, context) {\r\n\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis.once(type, types[type], fn);\r\n\t\t\t}\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tvar handler = L.bind(function () {\r\n\t\t\tthis\r\n\t\t\t    .off(types, fn, context)\r\n\t\t\t    .off(types, handler, context);\r\n\t\t}, this);\r\n\r\n\t\t// add a listener that's executed once and removed after that\r\n\t\treturn this\r\n\t\t    .on(types, fn, context)\r\n\t\t    .on(types, handler, context);\r\n\t},\r\n\r\n\t// @method addEventParent(obj: Evented): this\r\n\t// Adds an event parent - an `Evented` that will receive propagated events\r\n\taddEventParent: function (obj) {\r\n\t\tthis._eventParents = this._eventParents || {};\r\n\t\tthis._eventParents[L.stamp(obj)] = obj;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeEventParent(obj: Evented): this\r\n\t// Removes an event parent, so it will stop receiving propagated events\r\n\tremoveEventParent: function (obj) {\r\n\t\tif (this._eventParents) {\r\n\t\t\tdelete this._eventParents[L.stamp(obj)];\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_propagateEvent: function (e) {\r\n\t\tfor (var id in this._eventParents) {\r\n\t\t\tthis._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true);\r\n\t\t}\r\n\t}\r\n});\r\n\r\nvar proto = L.Evented.prototype;\r\n\r\n// aliases; we should ditch those eventually\r\n\r\n// @method addEventListener(…): this\r\n// Alias to [`on(…)`](#evented-on)\r\nproto.addEventListener = proto.on;\r\n\r\n// @method removeEventListener(…): this\r\n// Alias to [`off(…)`](#evented-off)\r\n\r\n// @method clearAllEventListeners(…): this\r\n// Alias to [`off()`](#evented-off)\r\nproto.removeEventListener = proto.clearAllEventListeners = proto.off;\r\n\r\n// @method addOneTimeEventListener(…): this\r\n// Alias to [`once(…)`](#evented-once)\r\nproto.addOneTimeEventListener = proto.once;\r\n\r\n// @method fireEvent(…): this\r\n// Alias to [`fire(…)`](#evented-fire)\r\nproto.fireEvent = proto.fire;\r\n\r\n// @method hasEventListeners(…): Boolean\r\n// Alias to [`listens(…)`](#evented-listens)\r\nproto.hasEventListeners = proto.listens;\r\n\r\nL.Mixin = {Events: proto};\r\n\n\n\n/*\r\n * @namespace Browser\r\n * @aka L.Browser\r\n *\r\n * A namespace with static properties for browser/feature detection used by Leaflet internally.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * if (L.Browser.ielt9) {\r\n *   alert('Upgrade your browser, dude!');\r\n * }\r\n * ```\r\n */\r\n\r\n(function () {\r\n\r\n\tvar ua = navigator.userAgent.toLowerCase(),\r\n\t    doc = document.documentElement,\r\n\r\n\t    ie = 'ActiveXObject' in window,\r\n\r\n\t    webkit    = ua.indexOf('webkit') !== -1,\r\n\t    phantomjs = ua.indexOf('phantom') !== -1,\r\n\t    android23 = ua.search('android [23]') !== -1,\r\n\t    chrome    = ua.indexOf('chrome') !== -1,\r\n\t    gecko     = ua.indexOf('gecko') !== -1  && !webkit && !window.opera && !ie,\r\n\r\n\t    win = navigator.platform.indexOf('Win') === 0,\r\n\r\n\t    mobile = typeof orientation !== 'undefined' || ua.indexOf('mobile') !== -1,\r\n\t    msPointer = !window.PointerEvent && window.MSPointerEvent,\r\n\t    pointer = window.PointerEvent || msPointer,\r\n\r\n\t    ie3d = ie && ('transition' in doc.style),\r\n\t    webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,\r\n\t    gecko3d = 'MozPerspective' in doc.style,\r\n\t    opera12 = 'OTransition' in doc.style;\r\n\r\n\r\n\tvar touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window ||\r\n\t\t\t(window.DocumentTouch && document instanceof window.DocumentTouch));\r\n\r\n\tL.Browser = {\r\n\r\n\t\t// @property ie: Boolean\r\n\t\t// `true` for all Internet Explorer versions (not Edge).\r\n\t\tie: ie,\r\n\r\n\t\t// @property ielt9: Boolean\r\n\t\t// `true` for Internet Explorer versions less than 9.\r\n\t\tielt9: ie && !document.addEventListener,\r\n\r\n\t\t// @property edge: Boolean\r\n\t\t// `true` for the Edge web browser.\r\n\t\tedge: 'msLaunchUri' in navigator && !('documentMode' in document),\r\n\r\n\t\t// @property webkit: Boolean\r\n\t\t// `true` for webkit-based browsers like Chrome and Safari (including mobile versions).\r\n\t\twebkit: webkit,\r\n\r\n\t\t// @property gecko: Boolean\r\n\t\t// `true` for gecko-based browsers like Firefox.\r\n\t\tgecko: gecko,\r\n\r\n\t\t// @property android: Boolean\r\n\t\t// `true` for any browser running on an Android platform.\r\n\t\tandroid: ua.indexOf('android') !== -1,\r\n\r\n\t\t// @property android23: Boolean\r\n\t\t// `true` for browsers running on Android 2 or Android 3.\r\n\t\tandroid23: android23,\r\n\r\n\t\t// @property chrome: Boolean\r\n\t\t// `true` for the Chrome browser.\r\n\t\tchrome: chrome,\r\n\r\n\t\t// @property safari: Boolean\r\n\t\t// `true` for the Safari browser.\r\n\t\tsafari: !chrome && ua.indexOf('safari') !== -1,\r\n\r\n\r\n\t\t// @property win: Boolean\r\n\t\t// `true` when the browser is running in a Windows platform\r\n\t\twin: win,\r\n\r\n\r\n\t\t// @property ie3d: Boolean\r\n\t\t// `true` for all Internet Explorer versions supporting CSS transforms.\r\n\t\tie3d: ie3d,\r\n\r\n\t\t// @property webkit3d: Boolean\r\n\t\t// `true` for webkit-based browsers supporting CSS transforms.\r\n\t\twebkit3d: webkit3d,\r\n\r\n\t\t// @property gecko3d: Boolean\r\n\t\t// `true` for gecko-based browsers supporting CSS transforms.\r\n\t\tgecko3d: gecko3d,\r\n\r\n\t\t// @property opera12: Boolean\r\n\t\t// `true` for the Opera browser supporting CSS transforms (version 12 or later).\r\n\t\topera12: opera12,\r\n\r\n\t\t// @property any3d: Boolean\r\n\t\t// `true` for all browsers supporting CSS transforms.\r\n\t\tany3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantomjs,\r\n\r\n\r\n\t\t// @property mobile: Boolean\r\n\t\t// `true` for all browsers running in a mobile device.\r\n\t\tmobile: mobile,\r\n\r\n\t\t// @property mobileWebkit: Boolean\r\n\t\t// `true` for all webkit-based browsers in a mobile device.\r\n\t\tmobileWebkit: mobile && webkit,\r\n\r\n\t\t// @property mobileWebkit3d: Boolean\r\n\t\t// `true` for all webkit-based browsers in a mobile device supporting CSS transforms.\r\n\t\tmobileWebkit3d: mobile && webkit3d,\r\n\r\n\t\t// @property mobileOpera: Boolean\r\n\t\t// `true` for the Opera browser in a mobile device.\r\n\t\tmobileOpera: mobile && window.opera,\r\n\r\n\t\t// @property mobileGecko: Boolean\r\n\t\t// `true` for gecko-based browsers running in a mobile device.\r\n\t\tmobileGecko: mobile && gecko,\r\n\r\n\r\n\t\t// @property touch: Boolean\r\n\t\t// `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events).\r\n\t\t// This does not necessarily mean that the browser is running in a computer with\r\n\t\t// a touchscreen, it only means that the browser is capable of understanding\r\n\t\t// touch events.\r\n\t\ttouch: !!touch,\r\n\r\n\t\t// @property msPointer: Boolean\r\n\t\t// `true` for browsers implementing the Microsoft touch events model (notably IE10).\r\n\t\tmsPointer: !!msPointer,\r\n\r\n\t\t// @property pointer: Boolean\r\n\t\t// `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx).\r\n\t\tpointer: !!pointer,\r\n\r\n\r\n\t\t// @property retina: Boolean\r\n\t\t// `true` for browsers on a high-resolution \"retina\" screen.\r\n\t\tretina: (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1\r\n\t};\r\n\r\n}());\r\n\n\n\n/*\r\n * @class Point\r\n * @aka L.Point\r\n *\r\n * Represents a point with `x` and `y` coordinates in pixels.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var point = L.point(200, 300);\r\n * ```\r\n *\r\n * All Leaflet methods and options that accept `Point` objects also accept them in a simple Array form (unless noted otherwise), so these lines are equivalent:\r\n *\r\n * ```js\r\n * map.panBy([200, 300]);\r\n * map.panBy(L.point(200, 300));\r\n * ```\r\n */\r\n\r\nL.Point = function (x, y, round) {\r\n\t// @property x: Number; The `x` coordinate of the point\r\n\tthis.x = (round ? Math.round(x) : x);\r\n\t// @property y: Number; The `y` coordinate of the point\r\n\tthis.y = (round ? Math.round(y) : y);\r\n};\r\n\r\nL.Point.prototype = {\r\n\r\n\t// @method clone(): Point\r\n\t// Returns a copy of the current point.\r\n\tclone: function () {\r\n\t\treturn new L.Point(this.x, this.y);\r\n\t},\r\n\r\n\t// @method add(otherPoint: Point): Point\r\n\t// Returns the result of addition of the current and the given points.\r\n\tadd: function (point) {\r\n\t\t// non-destructive, returns a new point\r\n\t\treturn this.clone()._add(L.point(point));\r\n\t},\r\n\r\n\t_add: function (point) {\r\n\t\t// destructive, used directly for performance in situations where it's safe to modify existing point\r\n\t\tthis.x += point.x;\r\n\t\tthis.y += point.y;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method subtract(otherPoint: Point): Point\r\n\t// Returns the result of subtraction of the given point from the current.\r\n\tsubtract: function (point) {\r\n\t\treturn this.clone()._subtract(L.point(point));\r\n\t},\r\n\r\n\t_subtract: function (point) {\r\n\t\tthis.x -= point.x;\r\n\t\tthis.y -= point.y;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method divideBy(num: Number): Point\r\n\t// Returns the result of division of the current point by the given number.\r\n\tdivideBy: function (num) {\r\n\t\treturn this.clone()._divideBy(num);\r\n\t},\r\n\r\n\t_divideBy: function (num) {\r\n\t\tthis.x /= num;\r\n\t\tthis.y /= num;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method multiplyBy(num: Number): Point\r\n\t// Returns the result of multiplication of the current point by the given number.\r\n\tmultiplyBy: function (num) {\r\n\t\treturn this.clone()._multiplyBy(num);\r\n\t},\r\n\r\n\t_multiplyBy: function (num) {\r\n\t\tthis.x *= num;\r\n\t\tthis.y *= num;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method scaleBy(scale: Point): Point\r\n\t// Multiply each coordinate of the current point by each coordinate of\r\n\t// `scale`. In linear algebra terms, multiply the point by the\r\n\t// [scaling matrix](https://en.wikipedia.org/wiki/Scaling_%28geometry%29#Matrix_representation)\r\n\t// defined by `scale`.\r\n\tscaleBy: function (point) {\r\n\t\treturn new L.Point(this.x * point.x, this.y * point.y);\r\n\t},\r\n\r\n\t// @method unscaleBy(scale: Point): Point\r\n\t// Inverse of `scaleBy`. Divide each coordinate of the current point by\r\n\t// each coordinate of `scale`.\r\n\tunscaleBy: function (point) {\r\n\t\treturn new L.Point(this.x / point.x, this.y / point.y);\r\n\t},\r\n\r\n\t// @method round(): Point\r\n\t// Returns a copy of the current point with rounded coordinates.\r\n\tround: function () {\r\n\t\treturn this.clone()._round();\r\n\t},\r\n\r\n\t_round: function () {\r\n\t\tthis.x = Math.round(this.x);\r\n\t\tthis.y = Math.round(this.y);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method floor(): Point\r\n\t// Returns a copy of the current point with floored coordinates (rounded down).\r\n\tfloor: function () {\r\n\t\treturn this.clone()._floor();\r\n\t},\r\n\r\n\t_floor: function () {\r\n\t\tthis.x = Math.floor(this.x);\r\n\t\tthis.y = Math.floor(this.y);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method ceil(): Point\r\n\t// Returns a copy of the current point with ceiled coordinates (rounded up).\r\n\tceil: function () {\r\n\t\treturn this.clone()._ceil();\r\n\t},\r\n\r\n\t_ceil: function () {\r\n\t\tthis.x = Math.ceil(this.x);\r\n\t\tthis.y = Math.ceil(this.y);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method distanceTo(otherPoint: Point): Number\r\n\t// Returns the cartesian distance between the current and the given points.\r\n\tdistanceTo: function (point) {\r\n\t\tpoint = L.point(point);\r\n\r\n\t\tvar x = point.x - this.x,\r\n\t\t    y = point.y - this.y;\r\n\r\n\t\treturn Math.sqrt(x * x + y * y);\r\n\t},\r\n\r\n\t// @method equals(otherPoint: Point): Boolean\r\n\t// Returns `true` if the given point has the same coordinates.\r\n\tequals: function (point) {\r\n\t\tpoint = L.point(point);\r\n\r\n\t\treturn point.x === this.x &&\r\n\t\t       point.y === this.y;\r\n\t},\r\n\r\n\t// @method contains(otherPoint: Point): Boolean\r\n\t// Returns `true` if both coordinates of the given point are less than the corresponding current point coordinates (in absolute values).\r\n\tcontains: function (point) {\r\n\t\tpoint = L.point(point);\r\n\r\n\t\treturn Math.abs(point.x) <= Math.abs(this.x) &&\r\n\t\t       Math.abs(point.y) <= Math.abs(this.y);\r\n\t},\r\n\r\n\t// @method toString(): String\r\n\t// Returns a string representation of the point for debugging purposes.\r\n\ttoString: function () {\r\n\t\treturn 'Point(' +\r\n\t\t        L.Util.formatNum(this.x) + ', ' +\r\n\t\t        L.Util.formatNum(this.y) + ')';\r\n\t}\r\n};\r\n\r\n// @factory L.point(x: Number, y: Number, round?: Boolean)\r\n// Creates a Point object with the given `x` and `y` coordinates. If optional `round` is set to true, rounds the `x` and `y` values.\r\n\r\n// @alternative\r\n// @factory L.point(coords: Number[])\r\n// Expects an array of the form `[x, y]` instead.\r\n\r\n// @alternative\r\n// @factory L.point(coords: Object)\r\n// Expects a plain object of the form `{x: Number, y: Number}` instead.\r\nL.point = function (x, y, round) {\r\n\tif (x instanceof L.Point) {\r\n\t\treturn x;\r\n\t}\r\n\tif (L.Util.isArray(x)) {\r\n\t\treturn new L.Point(x[0], x[1]);\r\n\t}\r\n\tif (x === undefined || x === null) {\r\n\t\treturn x;\r\n\t}\r\n\tif (typeof x === 'object' && 'x' in x && 'y' in x) {\r\n\t\treturn new L.Point(x.x, x.y);\r\n\t}\r\n\treturn new L.Point(x, y, round);\r\n};\r\n\n\n\n/*\r\n * @class Bounds\r\n * @aka L.Bounds\r\n *\r\n * Represents a rectangular area in pixel coordinates.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var p1 = L.point(10, 10),\r\n * p2 = L.point(40, 60),\r\n * bounds = L.bounds(p1, p2);\r\n * ```\r\n *\r\n * All Leaflet methods that accept `Bounds` objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:\r\n *\r\n * ```js\r\n * otherBounds.intersects([[10, 10], [40, 60]]);\r\n * ```\r\n */\r\n\r\nL.Bounds = function (a, b) {\r\n\tif (!a) { return; }\r\n\r\n\tvar points = b ? [a, b] : a;\r\n\r\n\tfor (var i = 0, len = points.length; i < len; i++) {\r\n\t\tthis.extend(points[i]);\r\n\t}\r\n};\r\n\r\nL.Bounds.prototype = {\r\n\t// @method extend(point: Point): this\r\n\t// Extends the bounds to contain the given point.\r\n\textend: function (point) { // (Point)\r\n\t\tpoint = L.point(point);\r\n\r\n\t\t// @property min: Point\r\n\t\t// The top left corner of the rectangle.\r\n\t\t// @property max: Point\r\n\t\t// The bottom right corner of the rectangle.\r\n\t\tif (!this.min && !this.max) {\r\n\t\t\tthis.min = point.clone();\r\n\t\t\tthis.max = point.clone();\r\n\t\t} else {\r\n\t\t\tthis.min.x = Math.min(point.x, this.min.x);\r\n\t\t\tthis.max.x = Math.max(point.x, this.max.x);\r\n\t\t\tthis.min.y = Math.min(point.y, this.min.y);\r\n\t\t\tthis.max.y = Math.max(point.y, this.max.y);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getCenter(round?: Boolean): Point\r\n\t// Returns the center point of the bounds.\r\n\tgetCenter: function (round) {\r\n\t\treturn new L.Point(\r\n\t\t        (this.min.x + this.max.x) / 2,\r\n\t\t        (this.min.y + this.max.y) / 2, round);\r\n\t},\r\n\r\n\t// @method getBottomLeft(): Point\r\n\t// Returns the bottom-left point of the bounds.\r\n\tgetBottomLeft: function () {\r\n\t\treturn new L.Point(this.min.x, this.max.y);\r\n\t},\r\n\r\n\t// @method getTopRight(): Point\r\n\t// Returns the top-right point of the bounds.\r\n\tgetTopRight: function () { // -> Point\r\n\t\treturn new L.Point(this.max.x, this.min.y);\r\n\t},\r\n\r\n\t// @method getSize(): Point\r\n\t// Returns the size of the given bounds\r\n\tgetSize: function () {\r\n\t\treturn this.max.subtract(this.min);\r\n\t},\r\n\r\n\t// @method contains(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle contains the given one.\r\n\t// @alternative\r\n\t// @method contains(point: Point): Boolean\r\n\t// Returns `true` if the rectangle contains the given point.\r\n\tcontains: function (obj) {\r\n\t\tvar min, max;\r\n\r\n\t\tif (typeof obj[0] === 'number' || obj instanceof L.Point) {\r\n\t\t\tobj = L.point(obj);\r\n\t\t} else {\r\n\t\t\tobj = L.bounds(obj);\r\n\t\t}\r\n\r\n\t\tif (obj instanceof L.Bounds) {\r\n\t\t\tmin = obj.min;\r\n\t\t\tmax = obj.max;\r\n\t\t} else {\r\n\t\t\tmin = max = obj;\r\n\t\t}\r\n\r\n\t\treturn (min.x >= this.min.x) &&\r\n\t\t       (max.x <= this.max.x) &&\r\n\t\t       (min.y >= this.min.y) &&\r\n\t\t       (max.y <= this.max.y);\r\n\t},\r\n\r\n\t// @method intersects(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle intersects the given bounds. Two bounds\r\n\t// intersect if they have at least one point in common.\r\n\tintersects: function (bounds) { // (Bounds) -> Boolean\r\n\t\tbounds = L.bounds(bounds);\r\n\r\n\t\tvar min = this.min,\r\n\t\t    max = this.max,\r\n\t\t    min2 = bounds.min,\r\n\t\t    max2 = bounds.max,\r\n\t\t    xIntersects = (max2.x >= min.x) && (min2.x <= max.x),\r\n\t\t    yIntersects = (max2.y >= min.y) && (min2.y <= max.y);\r\n\r\n\t\treturn xIntersects && yIntersects;\r\n\t},\r\n\r\n\t// @method overlaps(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle overlaps the given bounds. Two bounds\r\n\t// overlap if their intersection is an area.\r\n\toverlaps: function (bounds) { // (Bounds) -> Boolean\r\n\t\tbounds = L.bounds(bounds);\r\n\r\n\t\tvar min = this.min,\r\n\t\t    max = this.max,\r\n\t\t    min2 = bounds.min,\r\n\t\t    max2 = bounds.max,\r\n\t\t    xOverlaps = (max2.x > min.x) && (min2.x < max.x),\r\n\t\t    yOverlaps = (max2.y > min.y) && (min2.y < max.y);\r\n\r\n\t\treturn xOverlaps && yOverlaps;\r\n\t},\r\n\r\n\tisValid: function () {\r\n\t\treturn !!(this.min && this.max);\r\n\t}\r\n};\r\n\r\n\r\n// @factory L.bounds(topLeft: Point, bottomRight: Point)\r\n// Creates a Bounds object from two coordinates (usually top-left and bottom-right corners).\r\n// @alternative\r\n// @factory L.bounds(points: Point[])\r\n// Creates a Bounds object from the points it contains\r\nL.bounds = function (a, b) {\r\n\tif (!a || a instanceof L.Bounds) {\r\n\t\treturn a;\r\n\t}\r\n\treturn new L.Bounds(a, b);\r\n};\r\n\n\n\n/*\r\n * @class Transformation\r\n * @aka L.Transformation\r\n *\r\n * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d`\r\n * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing\r\n * the reverse. Used by Leaflet in its projections code.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var transformation = new L.Transformation(2, 5, -1, 10),\r\n * \tp = L.point(1, 2),\r\n * \tp2 = transformation.transform(p), //  L.point(7, 8)\r\n * \tp3 = transformation.untransform(p2); //  L.point(1, 2)\r\n * ```\r\n */\r\n\r\n\r\n// factory new L.Transformation(a: Number, b: Number, c: Number, d: Number)\r\n// Creates a `Transformation` object with the given coefficients.\r\nL.Transformation = function (a, b, c, d) {\r\n\tthis._a = a;\r\n\tthis._b = b;\r\n\tthis._c = c;\r\n\tthis._d = d;\r\n};\r\n\r\nL.Transformation.prototype = {\r\n\t// @method transform(point: Point, scale?: Number): Point\r\n\t// Returns a transformed point, optionally multiplied by the given scale.\r\n\t// Only accepts actual `L.Point` instances, not arrays.\r\n\ttransform: function (point, scale) { // (Point, Number) -> Point\r\n\t\treturn this._transform(point.clone(), scale);\r\n\t},\r\n\r\n\t// destructive transform (faster)\r\n\t_transform: function (point, scale) {\r\n\t\tscale = scale || 1;\r\n\t\tpoint.x = scale * (this._a * point.x + this._b);\r\n\t\tpoint.y = scale * (this._c * point.y + this._d);\r\n\t\treturn point;\r\n\t},\r\n\r\n\t// @method untransform(point: Point, scale?: Number): Point\r\n\t// Returns the reverse transformation of the given point, optionally divided\r\n\t// by the given scale. Only accepts actual `L.Point` instances, not arrays.\r\n\tuntransform: function (point, scale) {\r\n\t\tscale = scale || 1;\r\n\t\treturn new L.Point(\r\n\t\t        (point.x / scale - this._b) / this._a,\r\n\t\t        (point.y / scale - this._d) / this._c);\r\n\t}\r\n};\r\n\n\n\n/*\r\n * @namespace DomUtil\r\n *\r\n * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model)\r\n * tree, used by Leaflet internally.\r\n *\r\n * Most functions expecting or returning a `HTMLElement` also work for\r\n * SVG elements. The only difference is that classes refer to CSS classes\r\n * in HTML and SVG classes in SVG.\r\n */\r\n\r\nL.DomUtil = {\r\n\r\n\t// @function get(id: String|HTMLElement): HTMLElement\r\n\t// Returns an element given its DOM id, or returns the element itself\r\n\t// if it was passed directly.\r\n\tget: function (id) {\r\n\t\treturn typeof id === 'string' ? document.getElementById(id) : id;\r\n\t},\r\n\r\n\t// @function getStyle(el: HTMLElement, styleAttrib: String): String\r\n\t// Returns the value for a certain style attribute on an element,\r\n\t// including computed values or values set through CSS.\r\n\tgetStyle: function (el, style) {\r\n\r\n\t\tvar value = el.style[style] || (el.currentStyle && el.currentStyle[style]);\r\n\r\n\t\tif ((!value || value === 'auto') && document.defaultView) {\r\n\t\t\tvar css = document.defaultView.getComputedStyle(el, null);\r\n\t\t\tvalue = css ? css[style] : null;\r\n\t\t}\r\n\r\n\t\treturn value === 'auto' ? null : value;\r\n\t},\r\n\r\n\t// @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement\r\n\t// Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element.\r\n\tcreate: function (tagName, className, container) {\r\n\r\n\t\tvar el = document.createElement(tagName);\r\n\t\tel.className = className || '';\r\n\r\n\t\tif (container) {\r\n\t\t\tcontainer.appendChild(el);\r\n\t\t}\r\n\r\n\t\treturn el;\r\n\t},\r\n\r\n\t// @function remove(el: HTMLElement)\r\n\t// Removes `el` from its parent element\r\n\tremove: function (el) {\r\n\t\tvar parent = el.parentNode;\r\n\t\tif (parent) {\r\n\t\t\tparent.removeChild(el);\r\n\t\t}\r\n\t},\r\n\r\n\t// @function empty(el: HTMLElement)\r\n\t// Removes all of `el`'s children elements from `el`\r\n\tempty: function (el) {\r\n\t\twhile (el.firstChild) {\r\n\t\t\tel.removeChild(el.firstChild);\r\n\t\t}\r\n\t},\r\n\r\n\t// @function toFront(el: HTMLElement)\r\n\t// Makes `el` the last children of its parent, so it renders in front of the other children.\r\n\ttoFront: function (el) {\r\n\t\tel.parentNode.appendChild(el);\r\n\t},\r\n\r\n\t// @function toBack(el: HTMLElement)\r\n\t// Makes `el` the first children of its parent, so it renders back from the other children.\r\n\ttoBack: function (el) {\r\n\t\tvar parent = el.parentNode;\r\n\t\tparent.insertBefore(el, parent.firstChild);\r\n\t},\r\n\r\n\t// @function hasClass(el: HTMLElement, name: String): Boolean\r\n\t// Returns `true` if the element's class attribute contains `name`.\r\n\thasClass: function (el, name) {\r\n\t\tif (el.classList !== undefined) {\r\n\t\t\treturn el.classList.contains(name);\r\n\t\t}\r\n\t\tvar className = L.DomUtil.getClass(el);\r\n\t\treturn className.length > 0 && new RegExp('(^|\\\\s)' + name + '(\\\\s|$)').test(className);\r\n\t},\r\n\r\n\t// @function addClass(el: HTMLElement, name: String)\r\n\t// Adds `name` to the element's class attribute.\r\n\taddClass: function (el, name) {\r\n\t\tif (el.classList !== undefined) {\r\n\t\t\tvar classes = L.Util.splitWords(name);\r\n\t\t\tfor (var i = 0, len = classes.length; i < len; i++) {\r\n\t\t\t\tel.classList.add(classes[i]);\r\n\t\t\t}\r\n\t\t} else if (!L.DomUtil.hasClass(el, name)) {\r\n\t\t\tvar className = L.DomUtil.getClass(el);\r\n\t\t\tL.DomUtil.setClass(el, (className ? className + ' ' : '') + name);\r\n\t\t}\r\n\t},\r\n\r\n\t// @function removeClass(el: HTMLElement, name: String)\r\n\t// Removes `name` from the element's class attribute.\r\n\tremoveClass: function (el, name) {\r\n\t\tif (el.classList !== undefined) {\r\n\t\t\tel.classList.remove(name);\r\n\t\t} else {\r\n\t\t\tL.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' ')));\r\n\t\t}\r\n\t},\r\n\r\n\t// @function setClass(el: HTMLElement, name: String)\r\n\t// Sets the element's class.\r\n\tsetClass: function (el, name) {\r\n\t\tif (el.className.baseVal === undefined) {\r\n\t\t\tel.className = name;\r\n\t\t} else {\r\n\t\t\t// in case of SVG element\r\n\t\t\tel.className.baseVal = name;\r\n\t\t}\r\n\t},\r\n\r\n\t// @function getClass(el: HTMLElement): String\r\n\t// Returns the element's class.\r\n\tgetClass: function (el) {\r\n\t\treturn el.className.baseVal === undefined ? el.className : el.className.baseVal;\r\n\t},\r\n\r\n\t// @function setOpacity(el: HTMLElement, opacity: Number)\r\n\t// Set the opacity of an element (including old IE support).\r\n\t// `opacity` must be a number from `0` to `1`.\r\n\tsetOpacity: function (el, value) {\r\n\r\n\t\tif ('opacity' in el.style) {\r\n\t\t\tel.style.opacity = value;\r\n\r\n\t\t} else if ('filter' in el.style) {\r\n\t\t\tL.DomUtil._setOpacityIE(el, value);\r\n\t\t}\r\n\t},\r\n\r\n\t_setOpacityIE: function (el, value) {\r\n\t\tvar filter = false,\r\n\t\t    filterName = 'DXImageTransform.Microsoft.Alpha';\r\n\r\n\t\t// filters collection throws an error if we try to retrieve a filter that doesn't exist\r\n\t\ttry {\r\n\t\t\tfilter = el.filters.item(filterName);\r\n\t\t} catch (e) {\r\n\t\t\t// don't set opacity to 1 if we haven't already set an opacity,\r\n\t\t\t// it isn't needed and breaks transparent pngs.\r\n\t\t\tif (value === 1) { return; }\r\n\t\t}\r\n\r\n\t\tvalue = Math.round(value * 100);\r\n\r\n\t\tif (filter) {\r\n\t\t\tfilter.Enabled = (value !== 100);\r\n\t\t\tfilter.Opacity = value;\r\n\t\t} else {\r\n\t\t\tel.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';\r\n\t\t}\r\n\t},\r\n\r\n\t// @function testProp(props: String[]): String|false\r\n\t// Goes through the array of style names and returns the first name\r\n\t// that is a valid style name for an element. If no such name is found,\r\n\t// it returns false. Useful for vendor-prefixed styles like `transform`.\r\n\ttestProp: function (props) {\r\n\r\n\t\tvar style = document.documentElement.style;\r\n\r\n\t\tfor (var i = 0; i < props.length; i++) {\r\n\t\t\tif (props[i] in style) {\r\n\t\t\t\treturn props[i];\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn false;\r\n\t},\r\n\r\n\t// @function setTransform(el: HTMLElement, offset: Point, scale?: Number)\r\n\t// Resets the 3D CSS transform of `el` so it is translated by `offset` pixels\r\n\t// and optionally scaled by `scale`. Does not have an effect if the\r\n\t// browser doesn't support 3D CSS transforms.\r\n\tsetTransform: function (el, offset, scale) {\r\n\t\tvar pos = offset || new L.Point(0, 0);\r\n\r\n\t\tel.style[L.DomUtil.TRANSFORM] =\r\n\t\t\t(L.Browser.ie3d ?\r\n\t\t\t\t'translate(' + pos.x + 'px,' + pos.y + 'px)' :\r\n\t\t\t\t'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') +\r\n\t\t\t(scale ? ' scale(' + scale + ')' : '');\r\n\t},\r\n\r\n\t// @function setPosition(el: HTMLElement, position: Point)\r\n\t// Sets the position of `el` to coordinates specified by `position`,\r\n\t// using CSS translate or top/left positioning depending on the browser\r\n\t// (used by Leaflet internally to position its layers).\r\n\tsetPosition: function (el, point) { // (HTMLElement, Point[, Boolean])\r\n\r\n\t\t/*eslint-disable */\r\n\t\tel._leaflet_pos = point;\r\n\t\t/*eslint-enable */\r\n\r\n\t\tif (L.Browser.any3d) {\r\n\t\t\tL.DomUtil.setTransform(el, point);\r\n\t\t} else {\r\n\t\t\tel.style.left = point.x + 'px';\r\n\t\t\tel.style.top = point.y + 'px';\r\n\t\t}\r\n\t},\r\n\r\n\t// @function getPosition(el: HTMLElement): Point\r\n\t// Returns the coordinates of an element previously positioned with setPosition.\r\n\tgetPosition: function (el) {\r\n\t\t// this method is only used for elements previously positioned using setPosition,\r\n\t\t// so it's safe to cache the position for performance\r\n\r\n\t\treturn el._leaflet_pos || new L.Point(0, 0);\r\n\t}\r\n};\r\n\r\n\r\n(function () {\r\n\t// prefix style property names\r\n\r\n\t// @property TRANSFORM: String\r\n\t// Vendor-prefixed fransform style name (e.g. `'webkitTransform'` for WebKit).\r\n\tL.DomUtil.TRANSFORM = L.DomUtil.testProp(\r\n\t\t\t['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);\r\n\r\n\r\n\t// webkitTransition comes first because some browser versions that drop vendor prefix don't do\r\n\t// the same for the transitionend event, in particular the Android 4.1 stock browser\r\n\r\n\t// @property TRANSITION: String\r\n\t// Vendor-prefixed transform style name.\r\n\tvar transition = L.DomUtil.TRANSITION = L.DomUtil.testProp(\r\n\t\t\t['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);\r\n\r\n\tL.DomUtil.TRANSITION_END =\r\n\t\t\ttransition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend';\r\n\r\n\t// @function disableTextSelection()\r\n\t// Prevents the user from generating `selectstart` DOM events, usually generated\r\n\t// when the user drags the mouse through a page with text. Used internally\r\n\t// by Leaflet to override the behaviour of any click-and-drag interaction on\r\n\t// the map. Affects drag interactions on the whole document.\r\n\r\n\t// @function enableTextSelection()\r\n\t// Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection).\r\n\tif ('onselectstart' in document) {\r\n\t\tL.DomUtil.disableTextSelection = function () {\r\n\t\t\tL.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);\r\n\t\t};\r\n\t\tL.DomUtil.enableTextSelection = function () {\r\n\t\t\tL.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);\r\n\t\t};\r\n\r\n\t} else {\r\n\t\tvar userSelectProperty = L.DomUtil.testProp(\r\n\t\t\t['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);\r\n\r\n\t\tL.DomUtil.disableTextSelection = function () {\r\n\t\t\tif (userSelectProperty) {\r\n\t\t\t\tvar style = document.documentElement.style;\r\n\t\t\t\tthis._userSelect = style[userSelectProperty];\r\n\t\t\t\tstyle[userSelectProperty] = 'none';\r\n\t\t\t}\r\n\t\t};\r\n\t\tL.DomUtil.enableTextSelection = function () {\r\n\t\t\tif (userSelectProperty) {\r\n\t\t\t\tdocument.documentElement.style[userSelectProperty] = this._userSelect;\r\n\t\t\t\tdelete this._userSelect;\r\n\t\t\t}\r\n\t\t};\r\n\t}\r\n\r\n\t// @function disableImageDrag()\r\n\t// As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but\r\n\t// for `dragstart` DOM events, usually generated when the user drags an image.\r\n\tL.DomUtil.disableImageDrag = function () {\r\n\t\tL.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);\r\n\t};\r\n\r\n\t// @function enableImageDrag()\r\n\t// Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection).\r\n\tL.DomUtil.enableImageDrag = function () {\r\n\t\tL.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);\r\n\t};\r\n\r\n\t// @function preventOutline(el: HTMLElement)\r\n\t// Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline)\r\n\t// of the element `el` invisible. Used internally by Leaflet to prevent\r\n\t// focusable elements from displaying an outline when the user performs a\r\n\t// drag interaction on them.\r\n\tL.DomUtil.preventOutline = function (element) {\r\n\t\twhile (element.tabIndex === -1) {\r\n\t\t\telement = element.parentNode;\r\n\t\t}\r\n\t\tif (!element || !element.style) { return; }\r\n\t\tL.DomUtil.restoreOutline();\r\n\t\tthis._outlineElement = element;\r\n\t\tthis._outlineStyle = element.style.outline;\r\n\t\telement.style.outline = 'none';\r\n\t\tL.DomEvent.on(window, 'keydown', L.DomUtil.restoreOutline, this);\r\n\t};\r\n\r\n\t// @function restoreOutline()\r\n\t// Cancels the effects of a previous [`L.DomUtil.preventOutline`]().\r\n\tL.DomUtil.restoreOutline = function () {\r\n\t\tif (!this._outlineElement) { return; }\r\n\t\tthis._outlineElement.style.outline = this._outlineStyle;\r\n\t\tdelete this._outlineElement;\r\n\t\tdelete this._outlineStyle;\r\n\t\tL.DomEvent.off(window, 'keydown', L.DomUtil.restoreOutline, this);\r\n\t};\r\n})();\r\n\n\n\n/* @class LatLng\r\n * @aka L.LatLng\r\n *\r\n * Represents a geographical point with a certain latitude and longitude.\r\n *\r\n * @example\r\n *\r\n * ```\r\n * var latlng = L.latLng(50.5, 30.5);\r\n * ```\r\n *\r\n * All Leaflet methods that accept LatLng objects also accept them in a simple Array form and simple object form (unless noted otherwise), so these lines are equivalent:\r\n *\r\n * ```\r\n * map.panTo([50, 30]);\r\n * map.panTo({lon: 30, lat: 50});\r\n * map.panTo({lat: 50, lng: 30});\r\n * map.panTo(L.latLng(50, 30));\r\n * ```\r\n */\r\n\r\nL.LatLng = function (lat, lng, alt) {\r\n\tif (isNaN(lat) || isNaN(lng)) {\r\n\t\tthrow new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');\r\n\t}\r\n\r\n\t// @property lat: Number\r\n\t// Latitude in degrees\r\n\tthis.lat = +lat;\r\n\r\n\t// @property lng: Number\r\n\t// Longitude in degrees\r\n\tthis.lng = +lng;\r\n\r\n\t// @property alt: Number\r\n\t// Altitude in meters (optional)\r\n\tif (alt !== undefined) {\r\n\t\tthis.alt = +alt;\r\n\t}\r\n};\r\n\r\nL.LatLng.prototype = {\r\n\t// @method equals(otherLatLng: LatLng, maxMargin?: Number): Boolean\r\n\t// Returns `true` if the given `LatLng` point is at the same position (within a small margin of error). The margin of error can be overriden by setting `maxMargin` to a small number.\r\n\tequals: function (obj, maxMargin) {\r\n\t\tif (!obj) { return false; }\r\n\r\n\t\tobj = L.latLng(obj);\r\n\r\n\t\tvar margin = Math.max(\r\n\t\t        Math.abs(this.lat - obj.lat),\r\n\t\t        Math.abs(this.lng - obj.lng));\r\n\r\n\t\treturn margin <= (maxMargin === undefined ? 1.0E-9 : maxMargin);\r\n\t},\r\n\r\n\t// @method toString(): String\r\n\t// Returns a string representation of the point (for debugging purposes).\r\n\ttoString: function (precision) {\r\n\t\treturn 'LatLng(' +\r\n\t\t        L.Util.formatNum(this.lat, precision) + ', ' +\r\n\t\t        L.Util.formatNum(this.lng, precision) + ')';\r\n\t},\r\n\r\n\t// @method distanceTo(otherLatLng: LatLng): Number\r\n\t// Returns the distance (in meters) to the given `LatLng` calculated using the [Haversine formula](http://en.wikipedia.org/wiki/Haversine_formula).\r\n\tdistanceTo: function (other) {\r\n\t\treturn L.CRS.Earth.distance(this, L.latLng(other));\r\n\t},\r\n\r\n\t// @method wrap(): LatLng\r\n\t// Returns a new `LatLng` object with the longitude wrapped so it's always between -180 and +180 degrees.\r\n\twrap: function () {\r\n\t\treturn L.CRS.Earth.wrapLatLng(this);\r\n\t},\r\n\r\n\t// @method toBounds(sizeInMeters: Number): LatLngBounds\r\n\t// Returns a new `LatLngBounds` object in which each boundary is `sizeInMeters/2` meters apart from the `LatLng`.\r\n\ttoBounds: function (sizeInMeters) {\r\n\t\tvar latAccuracy = 180 * sizeInMeters / 40075017,\r\n\t\t    lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat);\r\n\r\n\t\treturn L.latLngBounds(\r\n\t\t        [this.lat - latAccuracy, this.lng - lngAccuracy],\r\n\t\t        [this.lat + latAccuracy, this.lng + lngAccuracy]);\r\n\t},\r\n\r\n\tclone: function () {\r\n\t\treturn new L.LatLng(this.lat, this.lng, this.alt);\r\n\t}\r\n};\r\n\r\n\r\n\r\n// @factory L.latLng(latitude: Number, longitude: Number, altitude?: Number): LatLng\r\n// Creates an object representing a geographical point with the given latitude and longitude (and optionally altitude).\r\n\r\n// @alternative\r\n// @factory L.latLng(coords: Array): LatLng\r\n// Expects an array of the form `[Number, Number]` or `[Number, Number, Number]` instead.\r\n\r\n// @alternative\r\n// @factory L.latLng(coords: Object): LatLng\r\n// Expects an plain object of the form `{lat: Number, lng: Number}` or `{lat: Number, lng: Number, alt: Number}` instead.\r\n\r\nL.latLng = function (a, b, c) {\r\n\tif (a instanceof L.LatLng) {\r\n\t\treturn a;\r\n\t}\r\n\tif (L.Util.isArray(a) && typeof a[0] !== 'object') {\r\n\t\tif (a.length === 3) {\r\n\t\t\treturn new L.LatLng(a[0], a[1], a[2]);\r\n\t\t}\r\n\t\tif (a.length === 2) {\r\n\t\t\treturn new L.LatLng(a[0], a[1]);\r\n\t\t}\r\n\t\treturn null;\r\n\t}\r\n\tif (a === undefined || a === null) {\r\n\t\treturn a;\r\n\t}\r\n\tif (typeof a === 'object' && 'lat' in a) {\r\n\t\treturn new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt);\r\n\t}\r\n\tif (b === undefined) {\r\n\t\treturn null;\r\n\t}\r\n\treturn new L.LatLng(a, b, c);\r\n};\r\n\n\n\n/*\r\n * @class LatLngBounds\r\n * @aka L.LatLngBounds\r\n *\r\n * Represents a rectangular geographical area on a map.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var corner1 = L.latLng(40.712, -74.227),\r\n * corner2 = L.latLng(40.774, -74.125),\r\n * bounds = L.latLngBounds(corner1, corner2);\r\n * ```\r\n *\r\n * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:\r\n *\r\n * ```js\r\n * map.fitBounds([\r\n * \t[40.712, -74.227],\r\n * \t[40.774, -74.125]\r\n * ]);\r\n * ```\r\n *\r\n * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range.\r\n */\r\n\r\nL.LatLngBounds = function (corner1, corner2) { // (LatLng, LatLng) or (LatLng[])\r\n\tif (!corner1) { return; }\r\n\r\n\tvar latlngs = corner2 ? [corner1, corner2] : corner1;\r\n\r\n\tfor (var i = 0, len = latlngs.length; i < len; i++) {\r\n\t\tthis.extend(latlngs[i]);\r\n\t}\r\n};\r\n\r\nL.LatLngBounds.prototype = {\r\n\r\n\t// @method extend(latlng: LatLng): this\r\n\t// Extend the bounds to contain the given point\r\n\r\n\t// @alternative\r\n\t// @method extend(otherBounds: LatLngBounds): this\r\n\t// Extend the bounds to contain the given bounds\r\n\textend: function (obj) {\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2, ne2;\r\n\r\n\t\tif (obj instanceof L.LatLng) {\r\n\t\t\tsw2 = obj;\r\n\t\t\tne2 = obj;\r\n\r\n\t\t} else if (obj instanceof L.LatLngBounds) {\r\n\t\t\tsw2 = obj._southWest;\r\n\t\t\tne2 = obj._northEast;\r\n\r\n\t\t\tif (!sw2 || !ne2) { return this; }\r\n\r\n\t\t} else {\r\n\t\t\treturn obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this;\r\n\t\t}\r\n\r\n\t\tif (!sw && !ne) {\r\n\t\t\tthis._southWest = new L.LatLng(sw2.lat, sw2.lng);\r\n\t\t\tthis._northEast = new L.LatLng(ne2.lat, ne2.lng);\r\n\t\t} else {\r\n\t\t\tsw.lat = Math.min(sw2.lat, sw.lat);\r\n\t\t\tsw.lng = Math.min(sw2.lng, sw.lng);\r\n\t\t\tne.lat = Math.max(ne2.lat, ne.lat);\r\n\t\t\tne.lng = Math.max(ne2.lng, ne.lng);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method pad(bufferRatio: Number): LatLngBounds\r\n\t// Returns bigger bounds created by extending the current bounds by a given percentage in each direction.\r\n\tpad: function (bufferRatio) {\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,\r\n\t\t    widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;\r\n\r\n\t\treturn new L.LatLngBounds(\r\n\t\t        new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),\r\n\t\t        new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));\r\n\t},\r\n\r\n\t// @method getCenter(): LatLng\r\n\t// Returns the center point of the bounds.\r\n\tgetCenter: function () {\r\n\t\treturn new L.LatLng(\r\n\t\t        (this._southWest.lat + this._northEast.lat) / 2,\r\n\t\t        (this._southWest.lng + this._northEast.lng) / 2);\r\n\t},\r\n\r\n\t// @method getSouthWest(): LatLng\r\n\t// Returns the south-west point of the bounds.\r\n\tgetSouthWest: function () {\r\n\t\treturn this._southWest;\r\n\t},\r\n\r\n\t// @method getNorthEast(): LatLng\r\n\t// Returns the north-east point of the bounds.\r\n\tgetNorthEast: function () {\r\n\t\treturn this._northEast;\r\n\t},\r\n\r\n\t// @method getNorthWest(): LatLng\r\n\t// Returns the north-west point of the bounds.\r\n\tgetNorthWest: function () {\r\n\t\treturn new L.LatLng(this.getNorth(), this.getWest());\r\n\t},\r\n\r\n\t// @method getSouthEast(): LatLng\r\n\t// Returns the south-east point of the bounds.\r\n\tgetSouthEast: function () {\r\n\t\treturn new L.LatLng(this.getSouth(), this.getEast());\r\n\t},\r\n\r\n\t// @method getWest(): Number\r\n\t// Returns the west longitude of the bounds\r\n\tgetWest: function () {\r\n\t\treturn this._southWest.lng;\r\n\t},\r\n\r\n\t// @method getSouth(): Number\r\n\t// Returns the south latitude of the bounds\r\n\tgetSouth: function () {\r\n\t\treturn this._southWest.lat;\r\n\t},\r\n\r\n\t// @method getEast(): Number\r\n\t// Returns the east longitude of the bounds\r\n\tgetEast: function () {\r\n\t\treturn this._northEast.lng;\r\n\t},\r\n\r\n\t// @method getNorth(): Number\r\n\t// Returns the north latitude of the bounds\r\n\tgetNorth: function () {\r\n\t\treturn this._northEast.lat;\r\n\t},\r\n\r\n\t// @method contains(otherBounds: LatLngBounds): Boolean\r\n\t// Returns `true` if the rectangle contains the given one.\r\n\r\n\t// @alternative\r\n\t// @method contains (latlng: LatLng): Boolean\r\n\t// Returns `true` if the rectangle contains the given point.\r\n\tcontains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean\r\n\t\tif (typeof obj[0] === 'number' || obj instanceof L.LatLng || 'lat' in obj) {\r\n\t\t\tobj = L.latLng(obj);\r\n\t\t} else {\r\n\t\t\tobj = L.latLngBounds(obj);\r\n\t\t}\r\n\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2, ne2;\r\n\r\n\t\tif (obj instanceof L.LatLngBounds) {\r\n\t\t\tsw2 = obj.getSouthWest();\r\n\t\t\tne2 = obj.getNorthEast();\r\n\t\t} else {\r\n\t\t\tsw2 = ne2 = obj;\r\n\t\t}\r\n\r\n\t\treturn (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&\r\n\t\t       (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);\r\n\t},\r\n\r\n\t// @method intersects(otherBounds: LatLngBounds): Boolean\r\n\t// Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common.\r\n\tintersects: function (bounds) {\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2 = bounds.getSouthWest(),\r\n\t\t    ne2 = bounds.getNorthEast(),\r\n\r\n\t\t    latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),\r\n\t\t    lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);\r\n\r\n\t\treturn latIntersects && lngIntersects;\r\n\t},\r\n\r\n\t// @method overlaps(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area.\r\n\toverlaps: function (bounds) {\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2 = bounds.getSouthWest(),\r\n\t\t    ne2 = bounds.getNorthEast(),\r\n\r\n\t\t    latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat),\r\n\t\t    lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng);\r\n\r\n\t\treturn latOverlaps && lngOverlaps;\r\n\t},\r\n\r\n\t// @method toBBoxString(): String\r\n\t// Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data.\r\n\ttoBBoxString: function () {\r\n\t\treturn [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');\r\n\t},\r\n\r\n\t// @method equals(otherBounds: LatLngBounds): Boolean\r\n\t// Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds.\r\n\tequals: function (bounds) {\r\n\t\tif (!bounds) { return false; }\r\n\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\treturn this._southWest.equals(bounds.getSouthWest()) &&\r\n\t\t       this._northEast.equals(bounds.getNorthEast());\r\n\t},\r\n\r\n\t// @method isValid(): Boolean\r\n\t// Returns `true` if the bounds are properly initialized.\r\n\tisValid: function () {\r\n\t\treturn !!(this._southWest && this._northEast);\r\n\t}\r\n};\r\n\r\n// TODO International date line?\r\n\r\n// @factory L.latLngBounds(corner1: LatLng, corner2: LatLng)\r\n// Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle.\r\n\r\n// @alternative\r\n// @factory L.latLngBounds(latlngs: LatLng[])\r\n// Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds).\r\nL.latLngBounds = function (a, b) {\r\n\tif (a instanceof L.LatLngBounds) {\r\n\t\treturn a;\r\n\t}\r\n\treturn new L.LatLngBounds(a, b);\r\n};\r\n\n\n\n/*\r\n * @namespace Projection\r\n * @section\r\n * Leaflet comes with a set of already defined Projections out of the box:\r\n *\r\n * @projection L.Projection.LonLat\r\n *\r\n * Equirectangular, or Plate Carree projection — the most simple projection,\r\n * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as\r\n * latitude. Also suitable for flat worlds, e.g. game maps. Used by the\r\n * `EPSG:3395` and `Simple` CRS.\r\n */\r\n\r\nL.Projection = {};\r\n\r\nL.Projection.LonLat = {\r\n\tproject: function (latlng) {\r\n\t\treturn new L.Point(latlng.lng, latlng.lat);\r\n\t},\r\n\r\n\tunproject: function (point) {\r\n\t\treturn new L.LatLng(point.y, point.x);\r\n\t},\r\n\r\n\tbounds: L.bounds([-180, -90], [180, 90])\r\n};\r\n\n\n\n/*\r\n * @namespace Projection\r\n * @projection L.Projection.SphericalMercator\r\n *\r\n * Spherical Mercator projection — the most common projection for online maps,\r\n * used by almost all free and commercial tile providers. Assumes that Earth is\r\n * a sphere. Used by the `EPSG:3857` CRS.\r\n */\r\n\r\nL.Projection.SphericalMercator = {\r\n\r\n\tR: 6378137,\r\n\tMAX_LATITUDE: 85.0511287798,\r\n\r\n\tproject: function (latlng) {\r\n\t\tvar d = Math.PI / 180,\r\n\t\t    max = this.MAX_LATITUDE,\r\n\t\t    lat = Math.max(Math.min(max, latlng.lat), -max),\r\n\t\t    sin = Math.sin(lat * d);\r\n\r\n\t\treturn new L.Point(\r\n\t\t\t\tthis.R * latlng.lng * d,\r\n\t\t\t\tthis.R * Math.log((1 + sin) / (1 - sin)) / 2);\r\n\t},\r\n\r\n\tunproject: function (point) {\r\n\t\tvar d = 180 / Math.PI;\r\n\r\n\t\treturn new L.LatLng(\r\n\t\t\t(2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d,\r\n\t\t\tpoint.x * d / this.R);\r\n\t},\r\n\r\n\tbounds: (function () {\r\n\t\tvar d = 6378137 * Math.PI;\r\n\t\treturn L.bounds([-d, -d], [d, d]);\r\n\t})()\r\n};\r\n\n\n\n/*\r\n * @class CRS\r\n * @aka L.CRS\r\n * Abstract class that defines coordinate reference systems for projecting\r\n * geographical points into pixel (screen) coordinates and back (and to\r\n * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See\r\n * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system).\r\n *\r\n * Leaflet defines the most usual CRSs by default. If you want to use a\r\n * CRS not defined by default, take a look at the\r\n * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin.\r\n */\r\n\r\nL.CRS = {\r\n\t// @method latLngToPoint(latlng: LatLng, zoom: Number): Point\r\n\t// Projects geographical coordinates into pixel coordinates for a given zoom.\r\n\tlatLngToPoint: function (latlng, zoom) {\r\n\t\tvar projectedPoint = this.projection.project(latlng),\r\n\t\t    scale = this.scale(zoom);\r\n\r\n\t\treturn this.transformation._transform(projectedPoint, scale);\r\n\t},\r\n\r\n\t// @method pointToLatLng(point: Point, zoom: Number): LatLng\r\n\t// The inverse of `latLngToPoint`. Projects pixel coordinates on a given\r\n\t// zoom into geographical coordinates.\r\n\tpointToLatLng: function (point, zoom) {\r\n\t\tvar scale = this.scale(zoom),\r\n\t\t    untransformedPoint = this.transformation.untransform(point, scale);\r\n\r\n\t\treturn this.projection.unproject(untransformedPoint);\r\n\t},\r\n\r\n\t// @method project(latlng: LatLng): Point\r\n\t// Projects geographical coordinates into coordinates in units accepted for\r\n\t// this CRS (e.g. meters for EPSG:3857, for passing it to WMS services).\r\n\tproject: function (latlng) {\r\n\t\treturn this.projection.project(latlng);\r\n\t},\r\n\r\n\t// @method unproject(point: Point): LatLng\r\n\t// Given a projected coordinate returns the corresponding LatLng.\r\n\t// The inverse of `project`.\r\n\tunproject: function (point) {\r\n\t\treturn this.projection.unproject(point);\r\n\t},\r\n\r\n\t// @method scale(zoom: Number): Number\r\n\t// Returns the scale used when transforming projected coordinates into\r\n\t// pixel coordinates for a particular zoom. For example, it returns\r\n\t// `256 * 2^zoom` for Mercator-based CRS.\r\n\tscale: function (zoom) {\r\n\t\treturn 256 * Math.pow(2, zoom);\r\n\t},\r\n\r\n\t// @method zoom(scale: Number): Number\r\n\t// Inverse of `scale()`, returns the zoom level corresponding to a scale\r\n\t// factor of `scale`.\r\n\tzoom: function (scale) {\r\n\t\treturn Math.log(scale / 256) / Math.LN2;\r\n\t},\r\n\r\n\t// @method getProjectedBounds(zoom: Number): Bounds\r\n\t// Returns the projection's bounds scaled and transformed for the provided `zoom`.\r\n\tgetProjectedBounds: function (zoom) {\r\n\t\tif (this.infinite) { return null; }\r\n\r\n\t\tvar b = this.projection.bounds,\r\n\t\t    s = this.scale(zoom),\r\n\t\t    min = this.transformation.transform(b.min, s),\r\n\t\t    max = this.transformation.transform(b.max, s);\r\n\r\n\t\treturn L.bounds(min, max);\r\n\t},\r\n\r\n\t// @method distance(latlng1: LatLng, latlng2: LatLng): Number\r\n\t// Returns the distance between two geographical coordinates.\r\n\r\n\t// @property code: String\r\n\t// Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`)\r\n\t//\r\n\t// @property wrapLng: Number[]\r\n\t// An array of two numbers defining whether the longitude (horizontal) coordinate\r\n\t// axis wraps around a given range and how. Defaults to `[-180, 180]` in most\r\n\t// geographical CRSs. If `undefined`, the longitude axis does not wrap around.\r\n\t//\r\n\t// @property wrapLat: Number[]\r\n\t// Like `wrapLng`, but for the latitude (vertical) axis.\r\n\r\n\t// wrapLng: [min, max],\r\n\t// wrapLat: [min, max],\r\n\r\n\t// @property infinite: Boolean\r\n\t// If true, the coordinate space will be unbounded (infinite in both axes)\r\n\tinfinite: false,\r\n\r\n\t// @method wrapLatLng(latlng: LatLng): LatLng\r\n\t// Returns a `LatLng` where lat and lng has been wrapped according to the\r\n\t// CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds.\r\n\t// Only accepts actual `L.LatLng` instances, not arrays.\r\n\twrapLatLng: function (latlng) {\r\n\t\tvar lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng,\r\n\t\t    lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat,\r\n\t\t    alt = latlng.alt;\r\n\r\n\t\treturn L.latLng(lat, lng, alt);\r\n\t},\r\n\r\n\t// @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds\r\n\t// Returns a `LatLngBounds` with the same size as the given one, ensuring\r\n\t// that its center is within the CRS's bounds.\r\n\t// Only accepts actual `L.LatLngBounds` instances, not arrays.\r\n\twrapLatLngBounds: function (bounds) {\r\n\t\tvar center = bounds.getCenter(),\r\n\t\t    newCenter = this.wrapLatLng(center),\r\n\t\t    latShift = center.lat - newCenter.lat,\r\n\t\t    lngShift = center.lng - newCenter.lng;\r\n\r\n\t\tif (latShift === 0 && lngShift === 0) {\r\n\t\t\treturn bounds;\r\n\t\t}\r\n\r\n\t\tvar sw = bounds.getSouthWest(),\r\n\t\t    ne = bounds.getNorthEast(),\r\n\t\t    newSw = L.latLng({lat: sw.lat - latShift, lng: sw.lng - lngShift}),\r\n\t\t    newNe = L.latLng({lat: ne.lat - latShift, lng: ne.lng - lngShift});\r\n\r\n\t\treturn new L.LatLngBounds(newSw, newNe);\r\n\t}\r\n};\r\n\n\n\n/*\n * @namespace CRS\n * @crs L.CRS.Simple\n *\n * A simple CRS that maps longitude and latitude into `x` and `y` directly.\n * May be used for maps of flat surfaces (e.g. game maps). Note that the `y`\n * axis should still be inverted (going from bottom to top). `distance()` returns\n * simple euclidean distance.\n */\n\nL.CRS.Simple = L.extend({}, L.CRS, {\n\tprojection: L.Projection.LonLat,\n\ttransformation: new L.Transformation(1, 0, -1, 0),\n\n\tscale: function (zoom) {\n\t\treturn Math.pow(2, zoom);\n\t},\n\n\tzoom: function (scale) {\n\t\treturn Math.log(scale) / Math.LN2;\n\t},\n\n\tdistance: function (latlng1, latlng2) {\n\t\tvar dx = latlng2.lng - latlng1.lng,\n\t\t    dy = latlng2.lat - latlng1.lat;\n\n\t\treturn Math.sqrt(dx * dx + dy * dy);\n\t},\n\n\tinfinite: true\n});\n\n\n\n/*\n * @namespace CRS\n * @crs L.CRS.Earth\n *\n * Serves as the base for CRS that are global such that they cover the earth.\n * Can only be used as the base for other CRS and cannot be used directly,\n * since it does not have a `code`, `projection` or `transformation`. `distance()` returns\n * meters.\n */\n\nL.CRS.Earth = L.extend({}, L.CRS, {\n\twrapLng: [-180, 180],\n\n\t// Mean Earth Radius, as recommended for use by\n\t// the International Union of Geodesy and Geophysics,\n\t// see http://rosettacode.org/wiki/Haversine_formula\n\tR: 6371000,\n\n\t// distance between two geographical points using spherical law of cosines approximation\n\tdistance: function (latlng1, latlng2) {\n\t\tvar rad = Math.PI / 180,\n\t\t    lat1 = latlng1.lat * rad,\n\t\t    lat2 = latlng2.lat * rad,\n\t\t    a = Math.sin(lat1) * Math.sin(lat2) +\n\t\t        Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad);\n\n\t\treturn this.R * Math.acos(Math.min(a, 1));\n\t}\n});\n\n\n\n/*\r\n * @namespace CRS\r\n * @crs L.CRS.EPSG3857\r\n *\r\n * The most common CRS for online maps, used by almost all free and commercial\r\n * tile providers. Uses Spherical Mercator projection. Set in by default in\r\n * Map's `crs` option.\r\n */\r\n\r\nL.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, {\r\n\tcode: 'EPSG:3857',\r\n\tprojection: L.Projection.SphericalMercator,\r\n\r\n\ttransformation: (function () {\r\n\t\tvar scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R);\r\n\t\treturn new L.Transformation(scale, 0.5, -scale, 0.5);\r\n\t}())\r\n});\r\n\r\nL.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {\r\n\tcode: 'EPSG:900913'\r\n});\r\n\n\n\n/*\r\n * @namespace CRS\r\n * @crs L.CRS.EPSG4326\r\n *\r\n * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection.\r\n *\r\n * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic),\r\n * which is a breaking change from 0.7.x behaviour.  If you are using a `TileLayer`\r\n * with this CRS, ensure that there are two 256x256 pixel tiles covering the\r\n * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90),\r\n * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set.\r\n */\r\n\r\nL.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, {\r\n\tcode: 'EPSG:4326',\r\n\tprojection: L.Projection.LonLat,\r\n\ttransformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5)\r\n});\r\n\n\n\n/*\r\n * @class Map\r\n * @aka L.Map\r\n * @inherits Evented\r\n *\r\n * The central class of the API — it is used to create a map on a page and manipulate it.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * // initialize the map on the \"map\" div with a given center and zoom\r\n * var map = L.map('map', {\r\n * \tcenter: [51.505, -0.09],\r\n * \tzoom: 13\r\n * });\r\n * ```\r\n *\r\n */\r\n\r\nL.Map = L.Evented.extend({\r\n\r\n\toptions: {\r\n\t\t// @section Map State Options\r\n\t\t// @option crs: CRS = L.CRS.EPSG3857\r\n\t\t// The [Coordinate Reference System](#crs) to use. Don't change this if you're not\r\n\t\t// sure what it means.\r\n\t\tcrs: L.CRS.EPSG3857,\r\n\r\n\t\t// @option center: LatLng = undefined\r\n\t\t// Initial geographic center of the map\r\n\t\tcenter: undefined,\r\n\r\n\t\t// @option zoom: Number = undefined\r\n\t\t// Initial map zoom level\r\n\t\tzoom: undefined,\r\n\r\n\t\t// @option minZoom: Number = undefined\r\n\t\t// Minimum zoom level of the map. Overrides any `minZoom` option set on map layers.\r\n\t\tminZoom: undefined,\r\n\r\n\t\t// @option maxZoom: Number = undefined\r\n\t\t// Maximum zoom level of the map. Overrides any `maxZoom` option set on map layers.\r\n\t\tmaxZoom: undefined,\r\n\r\n\t\t// @option layers: Layer[] = []\r\n\t\t// Array of layers that will be added to the map initially\r\n\t\tlayers: [],\r\n\r\n\t\t// @option maxBounds: LatLngBounds = null\r\n\t\t// When this option is set, the map restricts the view to the given\r\n\t\t// geographical bounds, bouncing the user back if the user tries to pan\r\n\t\t// outside the view. To set the restriction dynamically, use\r\n\t\t// [`setMaxBounds`](#map-setmaxbounds) method.\r\n\t\tmaxBounds: undefined,\r\n\r\n\t\t// @option renderer: Renderer = *\r\n\t\t// The default method for drawing vector layers on the map. `L.SVG`\r\n\t\t// or `L.Canvas` by default depending on browser support.\r\n\t\trenderer: undefined,\r\n\r\n\r\n\t\t// @section Animation Options\r\n\t\t// @option zoomAnimation: Boolean = true\r\n\t\t// Whether the map zoom animation is enabled. By default it's enabled\r\n\t\t// in all browsers that support CSS3 Transitions except Android.\r\n\t\tzoomAnimation: true,\r\n\r\n\t\t// @option zoomAnimationThreshold: Number = 4\r\n\t\t// Won't animate zoom if the zoom difference exceeds this value.\r\n\t\tzoomAnimationThreshold: 4,\r\n\r\n\t\t// @option fadeAnimation: Boolean = true\r\n\t\t// Whether the tile fade animation is enabled. By default it's enabled\r\n\t\t// in all browsers that support CSS3 Transitions except Android.\r\n\t\tfadeAnimation: true,\r\n\r\n\t\t// @option markerZoomAnimation: Boolean = true\r\n\t\t// Whether markers animate their zoom with the zoom animation, if disabled\r\n\t\t// they will disappear for the length of the animation. By default it's\r\n\t\t// enabled in all browsers that support CSS3 Transitions except Android.\r\n\t\tmarkerZoomAnimation: true,\r\n\r\n\t\t// @option transform3DLimit: Number = 2^23\r\n\t\t// Defines the maximum size of a CSS translation transform. The default\r\n\t\t// value should not be changed unless a web browser positions layers in\r\n\t\t// the wrong place after doing a large `panBy`.\r\n\t\ttransform3DLimit: 8388608, // Precision limit of a 32-bit float\r\n\r\n\t\t// @section Interaction Options\r\n\t\t// @option zoomSnap: Number = 1\r\n\t\t// Forces the map's zoom level to always be a multiple of this, particularly\r\n\t\t// right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom.\r\n\t\t// By default, the zoom level snaps to the nearest integer; lower values\r\n\t\t// (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0`\r\n\t\t// means the zoom level will not be snapped after `fitBounds` or a pinch-zoom.\r\n\t\tzoomSnap: 1,\r\n\r\n\t\t// @option zoomDelta: Number = 1\r\n\t\t// Controls how much the map's zoom level will change after a\r\n\t\t// [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+`\r\n\t\t// or `-` on the keyboard, or using the [zoom controls](#control-zoom).\r\n\t\t// Values smaller than `1` (e.g. `0.5`) allow for greater granularity.\r\n\t\tzoomDelta: 1,\r\n\r\n\t\t// @option trackResize: Boolean = true\r\n\t\t// Whether the map automatically handles browser window resize to update itself.\r\n\t\ttrackResize: true\r\n\t},\r\n\r\n\tinitialize: function (id, options) { // (HTMLElement or String, Object)\r\n\t\toptions = L.setOptions(this, options);\r\n\r\n\t\tthis._initContainer(id);\r\n\t\tthis._initLayout();\r\n\r\n\t\t// hack for https://github.com/Leaflet/Leaflet/issues/1980\r\n\t\tthis._onResize = L.bind(this._onResize, this);\r\n\r\n\t\tthis._initEvents();\r\n\r\n\t\tif (options.maxBounds) {\r\n\t\t\tthis.setMaxBounds(options.maxBounds);\r\n\t\t}\r\n\r\n\t\tif (options.zoom !== undefined) {\r\n\t\t\tthis._zoom = this._limitZoom(options.zoom);\r\n\t\t}\r\n\r\n\t\tif (options.center && options.zoom !== undefined) {\r\n\t\t\tthis.setView(L.latLng(options.center), options.zoom, {reset: true});\r\n\t\t}\r\n\r\n\t\tthis._handlers = [];\r\n\t\tthis._layers = {};\r\n\t\tthis._zoomBoundLayers = {};\r\n\t\tthis._sizeChanged = true;\r\n\r\n\t\tthis.callInitHooks();\r\n\r\n\t\t// don't animate on browsers without hardware-accelerated transitions or old Android/Opera\r\n\t\tthis._zoomAnimated = L.DomUtil.TRANSITION && L.Browser.any3d && !L.Browser.mobileOpera &&\r\n\t\t\t\tthis.options.zoomAnimation;\r\n\r\n\t\t// zoom transitions run with the same duration for all layers, so if one of transitionend events\r\n\t\t// happens after starting zoom animation (propagating to the map pane), we know that it ended globally\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tthis._createAnimProxy();\r\n\t\t\tL.DomEvent.on(this._proxy, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);\r\n\t\t}\r\n\r\n\t\tthis._addLayers(this.options.layers);\r\n\t},\r\n\r\n\r\n\t// @section Methods for modifying map state\r\n\r\n\t// @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this\r\n\t// Sets the view of the map (geographical center and zoom) with the given\r\n\t// animation options.\r\n\tsetView: function (center, zoom, options) {\r\n\r\n\t\tzoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);\r\n\t\tcenter = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);\r\n\t\toptions = options || {};\r\n\r\n\t\tthis._stop();\r\n\r\n\t\tif (this._loaded && !options.reset && options !== true) {\r\n\r\n\t\t\tif (options.animate !== undefined) {\r\n\t\t\t\toptions.zoom = L.extend({animate: options.animate}, options.zoom);\r\n\t\t\t\toptions.pan = L.extend({animate: options.animate, duration: options.duration}, options.pan);\r\n\t\t\t}\r\n\r\n\t\t\t// try animating pan or zoom\r\n\t\t\tvar moved = (this._zoom !== zoom) ?\r\n\t\t\t\tthis._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :\r\n\t\t\t\tthis._tryAnimatedPan(center, options.pan);\r\n\r\n\t\t\tif (moved) {\r\n\t\t\t\t// prevent resize handler call, the view will refresh after animation anyway\r\n\t\t\t\tclearTimeout(this._sizeTimer);\r\n\t\t\t\treturn this;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// animation didn't start, just reset the map view\r\n\t\tthis._resetView(center, zoom);\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setZoom(zoom: Number, options: Zoom/pan options): this\r\n\t// Sets the zoom of the map.\r\n\tsetZoom: function (zoom, options) {\r\n\t\tif (!this._loaded) {\r\n\t\t\tthis._zoom = zoom;\r\n\t\t\treturn this;\r\n\t\t}\r\n\t\treturn this.setView(this.getCenter(), zoom, {zoom: options});\r\n\t},\r\n\r\n\t// @method zoomIn(delta?: Number, options?: Zoom options): this\r\n\t// Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).\r\n\tzoomIn: function (delta, options) {\r\n\t\tdelta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);\r\n\t\treturn this.setZoom(this._zoom + delta, options);\r\n\t},\r\n\r\n\t// @method zoomOut(delta?: Number, options?: Zoom options): this\r\n\t// Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).\r\n\tzoomOut: function (delta, options) {\r\n\t\tdelta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);\r\n\t\treturn this.setZoom(this._zoom - delta, options);\r\n\t},\r\n\r\n\t// @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this\r\n\t// Zooms the map while keeping a specified geographical point on the map\r\n\t// stationary (e.g. used internally for scroll zoom and double-click zoom).\r\n\t// @alternative\r\n\t// @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this\r\n\t// Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary.\r\n\tsetZoomAround: function (latlng, zoom, options) {\r\n\t\tvar scale = this.getZoomScale(zoom),\r\n\t\t    viewHalf = this.getSize().divideBy(2),\r\n\t\t    containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),\r\n\r\n\t\t    centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),\r\n\t\t    newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));\r\n\r\n\t\treturn this.setView(newCenter, zoom, {zoom: options});\r\n\t},\r\n\r\n\t_getBoundsCenterZoom: function (bounds, options) {\r\n\r\n\t\toptions = options || {};\r\n\t\tbounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);\r\n\r\n\t\tvar paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),\r\n\t\t    paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),\r\n\r\n\t\t    zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));\r\n\r\n\t\tzoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;\r\n\r\n\t\tvar paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),\r\n\r\n\t\t    swPoint = this.project(bounds.getSouthWest(), zoom),\r\n\t\t    nePoint = this.project(bounds.getNorthEast(), zoom),\r\n\t\t    center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);\r\n\r\n\t\treturn {\r\n\t\t\tcenter: center,\r\n\t\t\tzoom: zoom\r\n\t\t};\r\n\t},\r\n\r\n\t// @method fitBounds(bounds: LatLngBounds, options?: fitBounds options): this\r\n\t// Sets a map view that contains the given geographical bounds with the\r\n\t// maximum zoom level possible.\r\n\tfitBounds: function (bounds, options) {\r\n\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tif (!bounds.isValid()) {\r\n\t\t\tthrow new Error('Bounds are not valid.');\r\n\t\t}\r\n\r\n\t\tvar target = this._getBoundsCenterZoom(bounds, options);\r\n\t\treturn this.setView(target.center, target.zoom, options);\r\n\t},\r\n\r\n\t// @method fitWorld(options?: fitBounds options): this\r\n\t// Sets a map view that mostly contains the whole world with the maximum\r\n\t// zoom level possible.\r\n\tfitWorld: function (options) {\r\n\t\treturn this.fitBounds([[-90, -180], [90, 180]], options);\r\n\t},\r\n\r\n\t// @method panTo(latlng: LatLng, options?: Pan options): this\r\n\t// Pans the map to a given center.\r\n\tpanTo: function (center, options) { // (LatLng)\r\n\t\treturn this.setView(center, this._zoom, {pan: options});\r\n\t},\r\n\r\n\t// @method panBy(offset: Point): this\r\n\t// Pans the map by a given number of pixels (animated).\r\n\tpanBy: function (offset, options) {\r\n\t\toffset = L.point(offset).round();\r\n\t\toptions = options || {};\r\n\r\n\t\tif (!offset.x && !offset.y) {\r\n\t\t\treturn this.fire('moveend');\r\n\t\t}\r\n\t\t// If we pan too far, Chrome gets issues with tiles\r\n\t\t// and makes them disappear or appear in the wrong place (slightly offset) #2602\r\n\t\tif (options.animate !== true && !this.getSize().contains(offset)) {\r\n\t\t\tthis._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom());\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tif (!this._panAnim) {\r\n\t\t\tthis._panAnim = new L.PosAnimation();\r\n\r\n\t\t\tthis._panAnim.on({\r\n\t\t\t\t'step': this._onPanTransitionStep,\r\n\t\t\t\t'end': this._onPanTransitionEnd\r\n\t\t\t}, this);\r\n\t\t}\r\n\r\n\t\t// don't fire movestart if animating inertia\r\n\t\tif (!options.noMoveStart) {\r\n\t\t\tthis.fire('movestart');\r\n\t\t}\r\n\r\n\t\t// animate pan unless animate: false specified\r\n\t\tif (options.animate !== false) {\r\n\t\t\tL.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');\r\n\r\n\t\t\tvar newPos = this._getMapPanePos().subtract(offset).round();\r\n\t\t\tthis._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);\r\n\t\t} else {\r\n\t\t\tthis._rawPanBy(offset);\r\n\t\t\tthis.fire('move').fire('moveend');\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this\r\n\t// Sets the view of the map (geographical center and zoom) performing a smooth\r\n\t// pan-zoom animation.\r\n\tflyTo: function (targetCenter, targetZoom, options) {\r\n\r\n\t\toptions = options || {};\r\n\t\tif (options.animate === false || !L.Browser.any3d) {\r\n\t\t\treturn this.setView(targetCenter, targetZoom, options);\r\n\t\t}\r\n\r\n\t\tthis._stop();\r\n\r\n\t\tvar from = this.project(this.getCenter()),\r\n\t\t    to = this.project(targetCenter),\r\n\t\t    size = this.getSize(),\r\n\t\t    startZoom = this._zoom;\r\n\r\n\t\ttargetCenter = L.latLng(targetCenter);\r\n\t\ttargetZoom = targetZoom === undefined ? startZoom : targetZoom;\r\n\r\n\t\tvar w0 = Math.max(size.x, size.y),\r\n\t\t    w1 = w0 * this.getZoomScale(startZoom, targetZoom),\r\n\t\t    u1 = (to.distanceTo(from)) || 1,\r\n\t\t    rho = 1.42,\r\n\t\t    rho2 = rho * rho;\r\n\r\n\t\tfunction r(i) {\r\n\t\t\tvar s1 = i ? -1 : 1,\r\n\t\t\t    s2 = i ? w1 : w0,\r\n\t\t\t    t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1,\r\n\t\t\t    b1 = 2 * s2 * rho2 * u1,\r\n\t\t\t    b = t1 / b1,\r\n\t\t\t    sq = Math.sqrt(b * b + 1) - b;\r\n\r\n\t\t\t    // workaround for floating point precision bug when sq = 0, log = -Infinite,\r\n\t\t\t    // thus triggering an infinite loop in flyTo\r\n\t\t\t    var log = sq < 0.000000001 ? -18 : Math.log(sq);\r\n\r\n\t\t\treturn log;\r\n\t\t}\r\n\r\n\t\tfunction sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; }\r\n\t\tfunction cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; }\r\n\t\tfunction tanh(n) { return sinh(n) / cosh(n); }\r\n\r\n\t\tvar r0 = r(0);\r\n\r\n\t\tfunction w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); }\r\n\t\tfunction u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; }\r\n\r\n\t\tfunction easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }\r\n\r\n\t\tvar start = Date.now(),\r\n\t\t    S = (r(1) - r0) / rho,\r\n\t\t    duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;\r\n\r\n\t\tfunction frame() {\r\n\t\t\tvar t = (Date.now() - start) / duration,\r\n\t\t\t    s = easeOut(t) * S;\r\n\r\n\t\t\tif (t <= 1) {\r\n\t\t\t\tthis._flyToFrame = L.Util.requestAnimFrame(frame, this);\r\n\r\n\t\t\t\tthis._move(\r\n\t\t\t\t\tthis.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),\r\n\t\t\t\t\tthis.getScaleZoom(w0 / w(s), startZoom),\r\n\t\t\t\t\t{flyTo: true});\r\n\r\n\t\t\t} else {\r\n\t\t\t\tthis\r\n\t\t\t\t\t._move(targetCenter, targetZoom)\r\n\t\t\t\t\t._moveEnd(true);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tthis._moveStart(true);\r\n\r\n\t\tframe.call(this);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this\r\n\t// Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto),\r\n\t// but takes a bounds parameter like [`fitBounds`](#map-fitbounds).\r\n\tflyToBounds: function (bounds, options) {\r\n\t\tvar target = this._getBoundsCenterZoom(bounds, options);\r\n\t\treturn this.flyTo(target.center, target.zoom, options);\r\n\t},\r\n\r\n\t// @method setMaxBounds(bounds: Bounds): this\r\n\t// Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option).\r\n\tsetMaxBounds: function (bounds) {\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tif (!bounds.isValid()) {\r\n\t\t\tthis.options.maxBounds = null;\r\n\t\t\treturn this.off('moveend', this._panInsideMaxBounds);\r\n\t\t} else if (this.options.maxBounds) {\r\n\t\t\tthis.off('moveend', this._panInsideMaxBounds);\r\n\t\t}\r\n\r\n\t\tthis.options.maxBounds = bounds;\r\n\r\n\t\tif (this._loaded) {\r\n\t\t\tthis._panInsideMaxBounds();\r\n\t\t}\r\n\r\n\t\treturn this.on('moveend', this._panInsideMaxBounds);\r\n\t},\r\n\r\n\t// @method setMinZoom(zoom: Number): this\r\n\t// Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option).\r\n\tsetMinZoom: function (zoom) {\r\n\t\tthis.options.minZoom = zoom;\r\n\r\n\t\tif (this._loaded && this.getZoom() < this.options.minZoom) {\r\n\t\t\treturn this.setZoom(zoom);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setMaxZoom(zoom: Number): this\r\n\t// Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option).\r\n\tsetMaxZoom: function (zoom) {\r\n\t\tthis.options.maxZoom = zoom;\r\n\r\n\t\tif (this._loaded && (this.getZoom() > this.options.maxZoom)) {\r\n\t\t\treturn this.setZoom(zoom);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this\r\n\t// Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any.\r\n\tpanInsideBounds: function (bounds, options) {\r\n\t\tthis._enforcingBounds = true;\r\n\t\tvar center = this.getCenter(),\r\n\t\t    newCenter = this._limitCenter(center, this._zoom, L.latLngBounds(bounds));\r\n\r\n\t\tif (!center.equals(newCenter)) {\r\n\t\t\tthis.panTo(newCenter, options);\r\n\t\t}\r\n\r\n\t\tthis._enforcingBounds = false;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method invalidateSize(options: Zoom/Pan options): this\r\n\t// Checks if the map container size changed and updates the map if so —\r\n\t// call it after you've changed the map size dynamically, also animating\r\n\t// pan by default. If `options.pan` is `false`, panning will not occur.\r\n\t// If `options.debounceMoveend` is `true`, it will delay `moveend` event so\r\n\t// that it doesn't happen often even if the method is called many\r\n\t// times in a row.\r\n\r\n\t// @alternative\r\n\t// @method invalidateSize(animate: Boolean): this\r\n\t// Checks if the map container size changed and updates the map if so —\r\n\t// call it after you've changed the map size dynamically, also animating\r\n\t// pan by default.\r\n\tinvalidateSize: function (options) {\r\n\t\tif (!this._loaded) { return this; }\r\n\r\n\t\toptions = L.extend({\r\n\t\t\tanimate: false,\r\n\t\t\tpan: true\r\n\t\t}, options === true ? {animate: true} : options);\r\n\r\n\t\tvar oldSize = this.getSize();\r\n\t\tthis._sizeChanged = true;\r\n\t\tthis._lastCenter = null;\r\n\r\n\t\tvar newSize = this.getSize(),\r\n\t\t    oldCenter = oldSize.divideBy(2).round(),\r\n\t\t    newCenter = newSize.divideBy(2).round(),\r\n\t\t    offset = oldCenter.subtract(newCenter);\r\n\r\n\t\tif (!offset.x && !offset.y) { return this; }\r\n\r\n\t\tif (options.animate && options.pan) {\r\n\t\t\tthis.panBy(offset);\r\n\r\n\t\t} else {\r\n\t\t\tif (options.pan) {\r\n\t\t\t\tthis._rawPanBy(offset);\r\n\t\t\t}\r\n\r\n\t\t\tthis.fire('move');\r\n\r\n\t\t\tif (options.debounceMoveend) {\r\n\t\t\t\tclearTimeout(this._sizeTimer);\r\n\t\t\t\tthis._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);\r\n\t\t\t} else {\r\n\t\t\t\tthis.fire('moveend');\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// @section Map state change events\r\n\t\t// @event resize: ResizeEvent\r\n\t\t// Fired when the map is resized.\r\n\t\treturn this.fire('resize', {\r\n\t\t\toldSize: oldSize,\r\n\t\t\tnewSize: newSize\r\n\t\t});\r\n\t},\r\n\r\n\t// @section Methods for modifying map state\r\n\t// @method stop(): this\r\n\t// Stops the currently running `panTo` or `flyTo` animation, if any.\r\n\tstop: function () {\r\n\t\tthis.setZoom(this._limitZoom(this._zoom));\r\n\t\tif (!this.options.zoomSnap) {\r\n\t\t\tthis.fire('viewreset');\r\n\t\t}\r\n\t\treturn this._stop();\r\n\t},\r\n\r\n\t// @section Geolocation methods\r\n\t// @method locate(options?: Locate options): this\r\n\t// Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound)\r\n\t// event with location data on success or a [`locationerror`](#map-locationerror) event on failure,\r\n\t// and optionally sets the map view to the user's location with respect to\r\n\t// detection accuracy (or to the world view if geolocation failed).\r\n\t// Note that, if your page doesn't use HTTPS, this method will fail in\r\n\t// modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins))\r\n\t// See `Locate options` for more details.\r\n\tlocate: function (options) {\r\n\r\n\t\toptions = this._locateOptions = L.extend({\r\n\t\t\ttimeout: 10000,\r\n\t\t\twatch: false\r\n\t\t\t// setView: false\r\n\t\t\t// maxZoom: <Number>\r\n\t\t\t// maximumAge: 0\r\n\t\t\t// enableHighAccuracy: false\r\n\t\t}, options);\r\n\r\n\t\tif (!('geolocation' in navigator)) {\r\n\t\t\tthis._handleGeolocationError({\r\n\t\t\t\tcode: 0,\r\n\t\t\t\tmessage: 'Geolocation not supported.'\r\n\t\t\t});\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tvar onResponse = L.bind(this._handleGeolocationResponse, this),\r\n\t\t    onError = L.bind(this._handleGeolocationError, this);\r\n\r\n\t\tif (options.watch) {\r\n\t\t\tthis._locationWatchId =\r\n\t\t\t        navigator.geolocation.watchPosition(onResponse, onError, options);\r\n\t\t} else {\r\n\t\t\tnavigator.geolocation.getCurrentPosition(onResponse, onError, options);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method stopLocate(): this\r\n\t// Stops watching location previously initiated by `map.locate({watch: true})`\r\n\t// and aborts resetting the map view if map.locate was called with\r\n\t// `{setView: true}`.\r\n\tstopLocate: function () {\r\n\t\tif (navigator.geolocation && navigator.geolocation.clearWatch) {\r\n\t\t\tnavigator.geolocation.clearWatch(this._locationWatchId);\r\n\t\t}\r\n\t\tif (this._locateOptions) {\r\n\t\t\tthis._locateOptions.setView = false;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_handleGeolocationError: function (error) {\r\n\t\tvar c = error.code,\r\n\t\t    message = error.message ||\r\n\t\t            (c === 1 ? 'permission denied' :\r\n\t\t            (c === 2 ? 'position unavailable' : 'timeout'));\r\n\r\n\t\tif (this._locateOptions.setView && !this._loaded) {\r\n\t\t\tthis.fitWorld();\r\n\t\t}\r\n\r\n\t\t// @section Location events\r\n\t\t// @event locationerror: ErrorEvent\r\n\t\t// Fired when geolocation (using the [`locate`](#map-locate) method) failed.\r\n\t\tthis.fire('locationerror', {\r\n\t\t\tcode: c,\r\n\t\t\tmessage: 'Geolocation error: ' + message + '.'\r\n\t\t});\r\n\t},\r\n\r\n\t_handleGeolocationResponse: function (pos) {\r\n\t\tvar lat = pos.coords.latitude,\r\n\t\t    lng = pos.coords.longitude,\r\n\t\t    latlng = new L.LatLng(lat, lng),\r\n\t\t    bounds = latlng.toBounds(pos.coords.accuracy),\r\n\t\t    options = this._locateOptions;\r\n\r\n\t\tif (options.setView) {\r\n\t\t\tvar zoom = this.getBoundsZoom(bounds);\r\n\t\t\tthis.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);\r\n\t\t}\r\n\r\n\t\tvar data = {\r\n\t\t\tlatlng: latlng,\r\n\t\t\tbounds: bounds,\r\n\t\t\ttimestamp: pos.timestamp\r\n\t\t};\r\n\r\n\t\tfor (var i in pos.coords) {\r\n\t\t\tif (typeof pos.coords[i] === 'number') {\r\n\t\t\t\tdata[i] = pos.coords[i];\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// @event locationfound: LocationEvent\r\n\t\t// Fired when geolocation (using the [`locate`](#map-locate) method)\r\n\t\t// went successfully.\r\n\t\tthis.fire('locationfound', data);\r\n\t},\r\n\r\n\t// TODO handler.addTo\r\n\t// TODO Appropiate docs section?\r\n\t// @section Other Methods\r\n\t// @method addHandler(name: String, HandlerClass: Function): this\r\n\t// Adds a new `Handler` to the map, given its name and constructor function.\r\n\taddHandler: function (name, HandlerClass) {\r\n\t\tif (!HandlerClass) { return this; }\r\n\r\n\t\tvar handler = this[name] = new HandlerClass(this);\r\n\r\n\t\tthis._handlers.push(handler);\r\n\r\n\t\tif (this.options[name]) {\r\n\t\t\thandler.enable();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method remove(): this\r\n\t// Destroys the map and clears all related event listeners.\r\n\tremove: function () {\r\n\r\n\t\tthis._initEvents(true);\r\n\r\n\t\tif (this._containerId !== this._container._leaflet_id) {\r\n\t\t\tthrow new Error('Map container is being reused by another instance');\r\n\t\t}\r\n\r\n\t\ttry {\r\n\t\t\t// throws error in IE6-8\r\n\t\t\tdelete this._container._leaflet_id;\r\n\t\t\tdelete this._containerId;\r\n\t\t} catch (e) {\r\n\t\t\t/*eslint-disable */\r\n\t\t\tthis._container._leaflet_id = undefined;\r\n\t\t\t/*eslint-enable */\r\n\t\t\tthis._containerId = undefined;\r\n\t\t}\r\n\r\n\t\tL.DomUtil.remove(this._mapPane);\r\n\r\n\t\tif (this._clearControlPos) {\r\n\t\t\tthis._clearControlPos();\r\n\t\t}\r\n\r\n\t\tthis._clearHandlers();\r\n\r\n\t\tif (this._loaded) {\r\n\t\t\t// @section Map state change events\r\n\t\t\t// @event unload: Event\r\n\t\t\t// Fired when the map is destroyed with [remove](#map-remove) method.\r\n\t\t\tthis.fire('unload');\r\n\t\t}\r\n\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tthis._layers[i].remove();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @section Other Methods\r\n\t// @method createPane(name: String, container?: HTMLElement): HTMLElement\r\n\t// Creates a new [map pane](#map-pane) with the given name if it doesn't exist already,\r\n\t// then returns it. The pane is created as a children of `container`, or\r\n\t// as a children of the main map pane if not set.\r\n\tcreatePane: function (name, container) {\r\n\t\tvar className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''),\r\n\t\t    pane = L.DomUtil.create('div', className, container || this._mapPane);\r\n\r\n\t\tif (name) {\r\n\t\t\tthis._panes[name] = pane;\r\n\t\t}\r\n\t\treturn pane;\r\n\t},\r\n\r\n\t// @section Methods for Getting Map State\r\n\r\n\t// @method getCenter(): LatLng\r\n\t// Returns the geographical center of the map view\r\n\tgetCenter: function () {\r\n\t\tthis._checkIfLoaded();\r\n\r\n\t\tif (this._lastCenter && !this._moved()) {\r\n\t\t\treturn this._lastCenter;\r\n\t\t}\r\n\t\treturn this.layerPointToLatLng(this._getCenterLayerPoint());\r\n\t},\r\n\r\n\t// @method getZoom(): Number\r\n\t// Returns the current zoom level of the map view\r\n\tgetZoom: function () {\r\n\t\treturn this._zoom;\r\n\t},\r\n\r\n\t// @method getBounds(): LatLngBounds\r\n\t// Returns the geographical bounds visible in the current map view\r\n\tgetBounds: function () {\r\n\t\tvar bounds = this.getPixelBounds(),\r\n\t\t    sw = this.unproject(bounds.getBottomLeft()),\r\n\t\t    ne = this.unproject(bounds.getTopRight());\r\n\r\n\t\treturn new L.LatLngBounds(sw, ne);\r\n\t},\r\n\r\n\t// @method getMinZoom(): Number\r\n\t// Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default.\r\n\tgetMinZoom: function () {\r\n\t\treturn this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom;\r\n\t},\r\n\r\n\t// @method getMaxZoom(): Number\r\n\t// Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers).\r\n\tgetMaxZoom: function () {\r\n\t\treturn this.options.maxZoom === undefined ?\r\n\t\t\t(this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :\r\n\t\t\tthis.options.maxZoom;\r\n\t},\r\n\r\n\t// @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean): Number\r\n\t// Returns the maximum zoom level on which the given bounds fit to the map\r\n\t// view in its entirety. If `inside` (optional) is set to `true`, the method\r\n\t// instead returns the minimum zoom level on which the map view fits into\r\n\t// the given bounds in its entirety.\r\n\tgetBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\t\tpadding = L.point(padding || [0, 0]);\r\n\r\n\t\tvar zoom = this.getZoom() || 0,\r\n\t\t    min = this.getMinZoom(),\r\n\t\t    max = this.getMaxZoom(),\r\n\t\t    nw = bounds.getNorthWest(),\r\n\t\t    se = bounds.getSouthEast(),\r\n\t\t    size = this.getSize().subtract(padding),\r\n\t\t    boundsSize = L.bounds(this.project(se, zoom), this.project(nw, zoom)).getSize(),\r\n\t\t    snap = L.Browser.any3d ? this.options.zoomSnap : 1;\r\n\r\n\t\tvar scale = Math.min(size.x / boundsSize.x, size.y / boundsSize.y);\r\n\t\tzoom = this.getScaleZoom(scale, zoom);\r\n\r\n\t\tif (snap) {\r\n\t\t\tzoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level\r\n\t\t\tzoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap;\r\n\t\t}\r\n\r\n\t\treturn Math.max(min, Math.min(max, zoom));\r\n\t},\r\n\r\n\t// @method getSize(): Point\r\n\t// Returns the current size of the map container (in pixels).\r\n\tgetSize: function () {\r\n\t\tif (!this._size || this._sizeChanged) {\r\n\t\t\tthis._size = new L.Point(\r\n\t\t\t\tthis._container.clientWidth || 0,\r\n\t\t\t\tthis._container.clientHeight || 0);\r\n\r\n\t\t\tthis._sizeChanged = false;\r\n\t\t}\r\n\t\treturn this._size.clone();\r\n\t},\r\n\r\n\t// @method getPixelBounds(): Bounds\r\n\t// Returns the bounds of the current map view in projected pixel\r\n\t// coordinates (sometimes useful in layer and overlay implementations).\r\n\tgetPixelBounds: function (center, zoom) {\r\n\t\tvar topLeftPoint = this._getTopLeftPoint(center, zoom);\r\n\t\treturn new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));\r\n\t},\r\n\r\n\t// TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to\r\n\t// the map pane? \"left point of the map layer\" can be confusing, specially\r\n\t// since there can be negative offsets.\r\n\t// @method getPixelOrigin(): Point\r\n\t// Returns the projected pixel coordinates of the top left point of\r\n\t// the map layer (useful in custom layer and overlay implementations).\r\n\tgetPixelOrigin: function () {\r\n\t\tthis._checkIfLoaded();\r\n\t\treturn this._pixelOrigin;\r\n\t},\r\n\r\n\t// @method getPixelWorldBounds(zoom?: Number): Bounds\r\n\t// Returns the world's bounds in pixel coordinates for zoom level `zoom`.\r\n\t// If `zoom` is omitted, the map's current zoom level is used.\r\n\tgetPixelWorldBounds: function (zoom) {\r\n\t\treturn this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom);\r\n\t},\r\n\r\n\t// @section Other Methods\r\n\r\n\t// @method getPane(pane: String|HTMLElement): HTMLElement\r\n\t// Returns a [map pane](#map-pane), given its name or its HTML element (its identity).\r\n\tgetPane: function (pane) {\r\n\t\treturn typeof pane === 'string' ? this._panes[pane] : pane;\r\n\t},\r\n\r\n\t// @method getPanes(): Object\r\n\t// Returns a plain object containing the names of all [panes](#map-pane) as keys and\r\n\t// the panes as values.\r\n\tgetPanes: function () {\r\n\t\treturn this._panes;\r\n\t},\r\n\r\n\t// @method getContainer: HTMLElement\r\n\t// Returns the HTML element that contains the map.\r\n\tgetContainer: function () {\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\r\n\t// @section Conversion Methods\r\n\r\n\t// @method getZoomScale(toZoom: Number, fromZoom: Number): Number\r\n\t// Returns the scale factor to be applied to a map transition from zoom level\r\n\t// `fromZoom` to `toZoom`. Used internally to help with zoom animations.\r\n\tgetZoomScale: function (toZoom, fromZoom) {\r\n\t\t// TODO replace with universal implementation after refactoring projections\r\n\t\tvar crs = this.options.crs;\r\n\t\tfromZoom = fromZoom === undefined ? this._zoom : fromZoom;\r\n\t\treturn crs.scale(toZoom) / crs.scale(fromZoom);\r\n\t},\r\n\r\n\t// @method getScaleZoom(scale: Number, fromZoom: Number): Number\r\n\t// Returns the zoom level that the map would end up at, if it is at `fromZoom`\r\n\t// level and everything is scaled by a factor of `scale`. Inverse of\r\n\t// [`getZoomScale`](#map-getZoomScale).\r\n\tgetScaleZoom: function (scale, fromZoom) {\r\n\t\tvar crs = this.options.crs;\r\n\t\tfromZoom = fromZoom === undefined ? this._zoom : fromZoom;\r\n\t\tvar zoom = crs.zoom(scale * crs.scale(fromZoom));\r\n\t\treturn isNaN(zoom) ? Infinity : zoom;\r\n\t},\r\n\r\n\t// @method project(latlng: LatLng, zoom: Number): Point\r\n\t// Projects a geographical coordinate `LatLng` according to the projection\r\n\t// of the map's CRS, then scales it according to `zoom` and the CRS's\r\n\t// `Transformation`. The result is pixel coordinate relative to\r\n\t// the CRS origin.\r\n\tproject: function (latlng, zoom) {\r\n\t\tzoom = zoom === undefined ? this._zoom : zoom;\r\n\t\treturn this.options.crs.latLngToPoint(L.latLng(latlng), zoom);\r\n\t},\r\n\r\n\t// @method unproject(point: Point, zoom: Number): LatLng\r\n\t// Inverse of [`project`](#map-project).\r\n\tunproject: function (point, zoom) {\r\n\t\tzoom = zoom === undefined ? this._zoom : zoom;\r\n\t\treturn this.options.crs.pointToLatLng(L.point(point), zoom);\r\n\t},\r\n\r\n\t// @method layerPointToLatLng(point: Point): LatLng\r\n\t// Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),\r\n\t// returns the corresponding geographical coordinate (for the current zoom level).\r\n\tlayerPointToLatLng: function (point) {\r\n\t\tvar projectedPoint = L.point(point).add(this.getPixelOrigin());\r\n\t\treturn this.unproject(projectedPoint);\r\n\t},\r\n\r\n\t// @method latLngToLayerPoint(latlng: LatLng): Point\r\n\t// Given a geographical coordinate, returns the corresponding pixel coordinate\r\n\t// relative to the [origin pixel](#map-getpixelorigin).\r\n\tlatLngToLayerPoint: function (latlng) {\r\n\t\tvar projectedPoint = this.project(L.latLng(latlng))._round();\r\n\t\treturn projectedPoint._subtract(this.getPixelOrigin());\r\n\t},\r\n\r\n\t// @method wrapLatLng(latlng: LatLng): LatLng\r\n\t// Returns a `LatLng` where `lat` and `lng` has been wrapped according to the\r\n\t// map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the\r\n\t// CRS's bounds.\r\n\t// By default this means longitude is wrapped around the dateline so its\r\n\t// value is between -180 and +180 degrees.\r\n\twrapLatLng: function (latlng) {\r\n\t\treturn this.options.crs.wrapLatLng(L.latLng(latlng));\r\n\t},\r\n\r\n\t// @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds\r\n\t// Returns a `LatLngBounds` with the same size as the given one, ensuring that\r\n\t// its center is within the CRS's bounds.\r\n\t// By default this means the center longitude is wrapped around the dateline so its\r\n\t// value is between -180 and +180 degrees, and the majority of the bounds\r\n\t// overlaps the CRS's bounds.\r\n\twrapLatLngBounds: function (latlng) {\r\n\t\treturn this.options.crs.wrapLatLngBounds(L.latLngBounds(latlng));\r\n\t},\r\n\r\n\t// @method distance(latlng1: LatLng, latlng2: LatLng): Number\r\n\t// Returns the distance between two geographical coordinates according to\r\n\t// the map's CRS. By default this measures distance in meters.\r\n\tdistance: function (latlng1, latlng2) {\r\n\t\treturn this.options.crs.distance(L.latLng(latlng1), L.latLng(latlng2));\r\n\t},\r\n\r\n\t// @method containerPointToLayerPoint(point: Point): Point\r\n\t// Given a pixel coordinate relative to the map container, returns the corresponding\r\n\t// pixel coordinate relative to the [origin pixel](#map-getpixelorigin).\r\n\tcontainerPointToLayerPoint: function (point) { // (Point)\r\n\t\treturn L.point(point).subtract(this._getMapPanePos());\r\n\t},\r\n\r\n\t// @method layerPointToContainerPoint(point: Point): Point\r\n\t// Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),\r\n\t// returns the corresponding pixel coordinate relative to the map container.\r\n\tlayerPointToContainerPoint: function (point) { // (Point)\r\n\t\treturn L.point(point).add(this._getMapPanePos());\r\n\t},\r\n\r\n\t// @method containerPointToLatLng(point: Point): LatLng\r\n\t// Given a pixel coordinate relative to the map container, returns\r\n\t// the corresponding geographical coordinate (for the current zoom level).\r\n\tcontainerPointToLatLng: function (point) {\r\n\t\tvar layerPoint = this.containerPointToLayerPoint(L.point(point));\r\n\t\treturn this.layerPointToLatLng(layerPoint);\r\n\t},\r\n\r\n\t// @method latLngToContainerPoint(latlng: LatLng): Point\r\n\t// Given a geographical coordinate, returns the corresponding pixel coordinate\r\n\t// relative to the map container.\r\n\tlatLngToContainerPoint: function (latlng) {\r\n\t\treturn this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));\r\n\t},\r\n\r\n\t// @method mouseEventToContainerPoint(ev: MouseEvent): Point\r\n\t// Given a MouseEvent object, returns the pixel coordinate relative to the\r\n\t// map container where the event took place.\r\n\tmouseEventToContainerPoint: function (e) {\r\n\t\treturn L.DomEvent.getMousePosition(e, this._container);\r\n\t},\r\n\r\n\t// @method mouseEventToLayerPoint(ev: MouseEvent): Point\r\n\t// Given a MouseEvent object, returns the pixel coordinate relative to\r\n\t// the [origin pixel](#map-getpixelorigin) where the event took place.\r\n\tmouseEventToLayerPoint: function (e) {\r\n\t\treturn this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));\r\n\t},\r\n\r\n\t// @method mouseEventToLatLng(ev: MouseEvent): LatLng\r\n\t// Given a MouseEvent object, returns geographical coordinate where the\r\n\t// event took place.\r\n\tmouseEventToLatLng: function (e) { // (MouseEvent)\r\n\t\treturn this.layerPointToLatLng(this.mouseEventToLayerPoint(e));\r\n\t},\r\n\r\n\r\n\t// map initialization methods\r\n\r\n\t_initContainer: function (id) {\r\n\t\tvar container = this._container = L.DomUtil.get(id);\r\n\r\n\t\tif (!container) {\r\n\t\t\tthrow new Error('Map container not found.');\r\n\t\t} else if (container._leaflet_id) {\r\n\t\t\tthrow new Error('Map container is already initialized.');\r\n\t\t}\r\n\r\n\t\tL.DomEvent.addListener(container, 'scroll', this._onScroll, this);\r\n\t\tthis._containerId = L.Util.stamp(container);\r\n\t},\r\n\r\n\t_initLayout: function () {\r\n\t\tvar container = this._container;\r\n\r\n\t\tthis._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d;\r\n\r\n\t\tL.DomUtil.addClass(container, 'leaflet-container' +\r\n\t\t\t(L.Browser.touch ? ' leaflet-touch' : '') +\r\n\t\t\t(L.Browser.retina ? ' leaflet-retina' : '') +\r\n\t\t\t(L.Browser.ielt9 ? ' leaflet-oldie' : '') +\r\n\t\t\t(L.Browser.safari ? ' leaflet-safari' : '') +\r\n\t\t\t(this._fadeAnimated ? ' leaflet-fade-anim' : ''));\r\n\r\n\t\tvar position = L.DomUtil.getStyle(container, 'position');\r\n\r\n\t\tif (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {\r\n\t\t\tcontainer.style.position = 'relative';\r\n\t\t}\r\n\r\n\t\tthis._initPanes();\r\n\r\n\t\tif (this._initControlPos) {\r\n\t\t\tthis._initControlPos();\r\n\t\t}\r\n\t},\r\n\r\n\t_initPanes: function () {\r\n\t\tvar panes = this._panes = {};\r\n\t\tthis._paneRenderers = {};\r\n\r\n\t\t// @section\r\n\t\t//\r\n\t\t// Panes are DOM elements used to control the ordering of layers on the map. You\r\n\t\t// can access panes with [`map.getPane`](#map-getpane) or\r\n\t\t// [`map.getPanes`](#map-getpanes) methods. New panes can be created with the\r\n\t\t// [`map.createPane`](#map-createpane) method.\r\n\t\t//\r\n\t\t// Every map has the following default panes that differ only in zIndex.\r\n\t\t//\r\n\t\t// @pane mapPane: HTMLElement = 'auto'\r\n\t\t// Pane that contains all other map panes\r\n\r\n\t\tthis._mapPane = this.createPane('mapPane', this._container);\r\n\t\tL.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));\r\n\r\n\t\t// @pane tilePane: HTMLElement = 200\r\n\t\t// Pane for `GridLayer`s and `TileLayer`s\r\n\t\tthis.createPane('tilePane');\r\n\t\t// @pane overlayPane: HTMLElement = 400\r\n\t\t// Pane for vector overlays (`Path`s), like `Polyline`s and `Polygon`s\r\n\t\tthis.createPane('shadowPane');\r\n\t\t// @pane shadowPane: HTMLElement = 500\r\n\t\t// Pane for overlay shadows (e.g. `Marker` shadows)\r\n\t\tthis.createPane('overlayPane');\r\n\t\t// @pane markerPane: HTMLElement = 600\r\n\t\t// Pane for `Icon`s of `Marker`s\r\n\t\tthis.createPane('markerPane');\r\n\t\t// @pane tooltipPane: HTMLElement = 650\r\n\t\t// Pane for tooltip.\r\n\t\tthis.createPane('tooltipPane');\r\n\t\t// @pane popupPane: HTMLElement = 700\r\n\t\t// Pane for `Popup`s.\r\n\t\tthis.createPane('popupPane');\r\n\r\n\t\tif (!this.options.markerZoomAnimation) {\r\n\t\t\tL.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide');\r\n\t\t\tL.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide');\r\n\t\t}\r\n\t},\r\n\r\n\r\n\t// private methods that modify map state\r\n\r\n\t// @section Map state change events\r\n\t_resetView: function (center, zoom) {\r\n\t\tL.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));\r\n\r\n\t\tvar loading = !this._loaded;\r\n\t\tthis._loaded = true;\r\n\t\tzoom = this._limitZoom(zoom);\r\n\r\n\t\tthis.fire('viewprereset');\r\n\r\n\t\tvar zoomChanged = this._zoom !== zoom;\r\n\t\tthis\r\n\t\t\t._moveStart(zoomChanged)\r\n\t\t\t._move(center, zoom)\r\n\t\t\t._moveEnd(zoomChanged);\r\n\r\n\t\t// @event viewreset: Event\r\n\t\t// Fired when the map needs to redraw its content (this usually happens\r\n\t\t// on map zoom or load). Very useful for creating custom overlays.\r\n\t\tthis.fire('viewreset');\r\n\r\n\t\t// @event load: Event\r\n\t\t// Fired when the map is initialized (when its center and zoom are set\r\n\t\t// for the first time).\r\n\t\tif (loading) {\r\n\t\t\tthis.fire('load');\r\n\t\t}\r\n\t},\r\n\r\n\t_moveStart: function (zoomChanged) {\r\n\t\t// @event zoomstart: Event\r\n\t\t// Fired when the map zoom is about to change (e.g. before zoom animation).\r\n\t\t// @event movestart: Event\r\n\t\t// Fired when the view of the map starts changing (e.g. user starts dragging the map).\r\n\t\tif (zoomChanged) {\r\n\t\t\tthis.fire('zoomstart');\r\n\t\t}\r\n\t\treturn this.fire('movestart');\r\n\t},\r\n\r\n\t_move: function (center, zoom, data) {\r\n\t\tif (zoom === undefined) {\r\n\t\t\tzoom = this._zoom;\r\n\t\t}\r\n\t\tvar zoomChanged = this._zoom !== zoom;\r\n\r\n\t\tthis._zoom = zoom;\r\n\t\tthis._lastCenter = center;\r\n\t\tthis._pixelOrigin = this._getNewPixelOrigin(center);\r\n\r\n\t\t// @event zoom: Event\r\n\t\t// Fired repeatedly during any change in zoom level, including zoom\r\n\t\t// and fly animations.\r\n\t\tif (zoomChanged || (data && data.pinch)) {\t// Always fire 'zoom' if pinching because #3530\r\n\t\t\tthis.fire('zoom', data);\r\n\t\t}\r\n\r\n\t\t// @event move: Event\r\n\t\t// Fired repeatedly during any movement of the map, including pan and\r\n\t\t// fly animations.\r\n\t\treturn this.fire('move', data);\r\n\t},\r\n\r\n\t_moveEnd: function (zoomChanged) {\r\n\t\t// @event zoomend: Event\r\n\t\t// Fired when the map has changed, after any animations.\r\n\t\tif (zoomChanged) {\r\n\t\t\tthis.fire('zoomend');\r\n\t\t}\r\n\r\n\t\t// @event moveend: Event\r\n\t\t// Fired when the center of the map stops changing (e.g. user stopped\r\n\t\t// dragging the map).\r\n\t\treturn this.fire('moveend');\r\n\t},\r\n\r\n\t_stop: function () {\r\n\t\tL.Util.cancelAnimFrame(this._flyToFrame);\r\n\t\tif (this._panAnim) {\r\n\t\t\tthis._panAnim.stop();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_rawPanBy: function (offset) {\r\n\t\tL.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));\r\n\t},\r\n\r\n\t_getZoomSpan: function () {\r\n\t\treturn this.getMaxZoom() - this.getMinZoom();\r\n\t},\r\n\r\n\t_panInsideMaxBounds: function () {\r\n\t\tif (!this._enforcingBounds) {\r\n\t\t\tthis.panInsideBounds(this.options.maxBounds);\r\n\t\t}\r\n\t},\r\n\r\n\t_checkIfLoaded: function () {\r\n\t\tif (!this._loaded) {\r\n\t\t\tthrow new Error('Set map center and zoom first.');\r\n\t\t}\r\n\t},\r\n\r\n\t// DOM event handling\r\n\r\n\t// @section Interaction events\r\n\t_initEvents: function (remove) {\r\n\t\tif (!L.DomEvent) { return; }\r\n\r\n\t\tthis._targets = {};\r\n\t\tthis._targets[L.stamp(this._container)] = this;\r\n\r\n\t\tvar onOff = remove ? 'off' : 'on';\r\n\r\n\t\t// @event click: MouseEvent\r\n\t\t// Fired when the user clicks (or taps) the map.\r\n\t\t// @event dblclick: MouseEvent\r\n\t\t// Fired when the user double-clicks (or double-taps) the map.\r\n\t\t// @event mousedown: MouseEvent\r\n\t\t// Fired when the user pushes the mouse button on the map.\r\n\t\t// @event mouseup: MouseEvent\r\n\t\t// Fired when the user releases the mouse button on the map.\r\n\t\t// @event mouseover: MouseEvent\r\n\t\t// Fired when the mouse enters the map.\r\n\t\t// @event mouseout: MouseEvent\r\n\t\t// Fired when the mouse leaves the map.\r\n\t\t// @event mousemove: MouseEvent\r\n\t\t// Fired while the mouse moves over the map.\r\n\t\t// @event contextmenu: MouseEvent\r\n\t\t// Fired when the user pushes the right mouse button on the map, prevents\r\n\t\t// default browser context menu from showing if there are listeners on\r\n\t\t// this event. Also fired on mobile when the user holds a single touch\r\n\t\t// for a second (also called long press).\r\n\t\t// @event keypress: KeyboardEvent\r\n\t\t// Fired when the user presses a key from the keyboard while the map is focused.\r\n\t\tL.DomEvent[onOff](this._container, 'click dblclick mousedown mouseup ' +\r\n\t\t\t'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this);\r\n\r\n\t\tif (this.options.trackResize) {\r\n\t\t\tL.DomEvent[onOff](window, 'resize', this._onResize, this);\r\n\t\t}\r\n\r\n\t\tif (L.Browser.any3d && this.options.transform3DLimit) {\r\n\t\t\tthis[onOff]('moveend', this._onMoveEnd);\r\n\t\t}\r\n\t},\r\n\r\n\t_onResize: function () {\r\n\t\tL.Util.cancelAnimFrame(this._resizeRequest);\r\n\t\tthis._resizeRequest = L.Util.requestAnimFrame(\r\n\t\t        function () { this.invalidateSize({debounceMoveend: true}); }, this);\r\n\t},\r\n\r\n\t_onScroll: function () {\r\n\t\tthis._container.scrollTop  = 0;\r\n\t\tthis._container.scrollLeft = 0;\r\n\t},\r\n\r\n\t_onMoveEnd: function () {\r\n\t\tvar pos = this._getMapPanePos();\r\n\t\tif (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) {\r\n\t\t\t// https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have\r\n\t\t\t// a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/\r\n\t\t\tthis._resetView(this.getCenter(), this.getZoom());\r\n\t\t}\r\n\t},\r\n\r\n\t_findEventTargets: function (e, type) {\r\n\t\tvar targets = [],\r\n\t\t    target,\r\n\t\t    isHover = type === 'mouseout' || type === 'mouseover',\r\n\t\t    src = e.target || e.srcElement,\r\n\t\t    dragging = false;\r\n\r\n\t\twhile (src) {\r\n\t\t\ttarget = this._targets[L.stamp(src)];\r\n\t\t\tif (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) {\r\n\t\t\t\t// Prevent firing click after you just dragged an object.\r\n\t\t\t\tdragging = true;\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t\tif (target && target.listens(type, true)) {\r\n\t\t\t\tif (isHover && !L.DomEvent._isExternalTarget(src, e)) { break; }\r\n\t\t\t\ttargets.push(target);\r\n\t\t\t\tif (isHover) { break; }\r\n\t\t\t}\r\n\t\t\tif (src === this._container) { break; }\r\n\t\t\tsrc = src.parentNode;\r\n\t\t}\r\n\t\tif (!targets.length && !dragging && !isHover && L.DomEvent._isExternalTarget(src, e)) {\r\n\t\t\ttargets = [this];\r\n\t\t}\r\n\t\treturn targets;\r\n\t},\r\n\r\n\t_handleDOMEvent: function (e) {\r\n\t\tif (!this._loaded || L.DomEvent._skipped(e)) { return; }\r\n\r\n\t\tvar type = e.type === 'keypress' && e.keyCode === 13 ? 'click' : e.type;\r\n\r\n\t\tif (type === 'mousedown') {\r\n\t\t\t// prevents outline when clicking on keyboard-focusable element\r\n\t\t\tL.DomUtil.preventOutline(e.target || e.srcElement);\r\n\t\t}\r\n\r\n\t\tthis._fireDOMEvent(e, type);\r\n\t},\r\n\r\n\t_fireDOMEvent: function (e, type, targets) {\r\n\r\n\t\tif (e.type === 'click') {\r\n\t\t\t// Fire a synthetic 'preclick' event which propagates up (mainly for closing popups).\r\n\t\t\t// @event preclick: MouseEvent\r\n\t\t\t// Fired before mouse click on the map (sometimes useful when you\r\n\t\t\t// want something to happen on click before any existing click\r\n\t\t\t// handlers start running).\r\n\t\t\tvar synth = L.Util.extend({}, e);\r\n\t\t\tsynth.type = 'preclick';\r\n\t\t\tthis._fireDOMEvent(synth, synth.type, targets);\r\n\t\t}\r\n\r\n\t\tif (e._stopped) { return; }\r\n\r\n\t\t// Find the layer the event is propagating from and its parents.\r\n\t\ttargets = (targets || []).concat(this._findEventTargets(e, type));\r\n\r\n\t\tif (!targets.length) { return; }\r\n\r\n\t\tvar target = targets[0];\r\n\t\tif (type === 'contextmenu' && target.listens(type, true)) {\r\n\t\t\tL.DomEvent.preventDefault(e);\r\n\t\t}\r\n\r\n\t\tvar data = {\r\n\t\t\toriginalEvent: e\r\n\t\t};\r\n\r\n\t\tif (e.type !== 'keypress') {\r\n\t\t\tvar isMarker = target instanceof L.Marker;\r\n\t\t\tdata.containerPoint = isMarker ?\r\n\t\t\t\t\tthis.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e);\r\n\t\t\tdata.layerPoint = this.containerPointToLayerPoint(data.containerPoint);\r\n\t\t\tdata.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint);\r\n\t\t}\r\n\r\n\t\tfor (var i = 0; i < targets.length; i++) {\r\n\t\t\ttargets[i].fire(type, data, true);\r\n\t\t\tif (data.originalEvent._stopped ||\r\n\t\t\t\t(targets[i].options.nonBubblingEvents && L.Util.indexOf(targets[i].options.nonBubblingEvents, type) !== -1)) { return; }\r\n\t\t}\r\n\t},\r\n\r\n\t_draggableMoved: function (obj) {\r\n\t\tobj = obj.dragging && obj.dragging.enabled() ? obj : this;\r\n\t\treturn (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());\r\n\t},\r\n\r\n\t_clearHandlers: function () {\r\n\t\tfor (var i = 0, len = this._handlers.length; i < len; i++) {\r\n\t\t\tthis._handlers[i].disable();\r\n\t\t}\r\n\t},\r\n\r\n\t// @section Other Methods\r\n\r\n\t// @method whenReady(fn: Function, context?: Object): this\r\n\t// Runs the given function `fn` when the map gets initialized with\r\n\t// a view (center and zoom) and at least one layer, or immediately\r\n\t// if it's already initialized, optionally passing a function context.\r\n\twhenReady: function (callback, context) {\r\n\t\tif (this._loaded) {\r\n\t\t\tcallback.call(context || this, {target: this});\r\n\t\t} else {\r\n\t\t\tthis.on('load', callback, context);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\r\n\t// private methods for getting map state\r\n\r\n\t_getMapPanePos: function () {\r\n\t\treturn L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0);\r\n\t},\r\n\r\n\t_moved: function () {\r\n\t\tvar pos = this._getMapPanePos();\r\n\t\treturn pos && !pos.equals([0, 0]);\r\n\t},\r\n\r\n\t_getTopLeftPoint: function (center, zoom) {\r\n\t\tvar pixelOrigin = center && zoom !== undefined ?\r\n\t\t\tthis._getNewPixelOrigin(center, zoom) :\r\n\t\t\tthis.getPixelOrigin();\r\n\t\treturn pixelOrigin.subtract(this._getMapPanePos());\r\n\t},\r\n\r\n\t_getNewPixelOrigin: function (center, zoom) {\r\n\t\tvar viewHalf = this.getSize()._divideBy(2);\r\n\t\treturn this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();\r\n\t},\r\n\r\n\t_latLngToNewLayerPoint: function (latlng, zoom, center) {\r\n\t\tvar topLeft = this._getNewPixelOrigin(center, zoom);\r\n\t\treturn this.project(latlng, zoom)._subtract(topLeft);\r\n\t},\r\n\r\n\t_latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) {\r\n\t\tvar topLeft = this._getNewPixelOrigin(center, zoom);\r\n\t\treturn L.bounds([\r\n\t\t\tthis.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft),\r\n\t\t\tthis.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft),\r\n\t\t\tthis.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft),\r\n\t\t\tthis.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft)\r\n\t\t]);\r\n\t},\r\n\r\n\t// layer point of the current center\r\n\t_getCenterLayerPoint: function () {\r\n\t\treturn this.containerPointToLayerPoint(this.getSize()._divideBy(2));\r\n\t},\r\n\r\n\t// offset of the specified place to the current center in pixels\r\n\t_getCenterOffset: function (latlng) {\r\n\t\treturn this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());\r\n\t},\r\n\r\n\t// adjust center for view to get inside bounds\r\n\t_limitCenter: function (center, zoom, bounds) {\r\n\r\n\t\tif (!bounds) { return center; }\r\n\r\n\t\tvar centerPoint = this.project(center, zoom),\r\n\t\t    viewHalf = this.getSize().divideBy(2),\r\n\t\t    viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),\r\n\t\t    offset = this._getBoundsOffset(viewBounds, bounds, zoom);\r\n\r\n\t\t// If offset is less than a pixel, ignore.\r\n\t\t// This prevents unstable projections from getting into\r\n\t\t// an infinite loop of tiny offsets.\r\n\t\tif (offset.round().equals([0, 0])) {\r\n\t\t\treturn center;\r\n\t\t}\r\n\r\n\t\treturn this.unproject(centerPoint.add(offset), zoom);\r\n\t},\r\n\r\n\t// adjust offset for view to get inside bounds\r\n\t_limitOffset: function (offset, bounds) {\r\n\t\tif (!bounds) { return offset; }\r\n\r\n\t\tvar viewBounds = this.getPixelBounds(),\r\n\t\t    newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));\r\n\r\n\t\treturn offset.add(this._getBoundsOffset(newBounds, bounds));\r\n\t},\r\n\r\n\t// returns offset needed for pxBounds to get inside maxBounds at a specified zoom\r\n\t_getBoundsOffset: function (pxBounds, maxBounds, zoom) {\r\n\t\tvar projectedMaxBounds = L.bounds(\r\n\t\t        this.project(maxBounds.getNorthEast(), zoom),\r\n\t\t        this.project(maxBounds.getSouthWest(), zoom)\r\n\t\t    ),\r\n\t\t    minOffset = projectedMaxBounds.min.subtract(pxBounds.min),\r\n\t\t    maxOffset = projectedMaxBounds.max.subtract(pxBounds.max),\r\n\r\n\t\t    dx = this._rebound(minOffset.x, -maxOffset.x),\r\n\t\t    dy = this._rebound(minOffset.y, -maxOffset.y);\r\n\r\n\t\treturn new L.Point(dx, dy);\r\n\t},\r\n\r\n\t_rebound: function (left, right) {\r\n\t\treturn left + right > 0 ?\r\n\t\t\tMath.round(left - right) / 2 :\r\n\t\t\tMath.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));\r\n\t},\r\n\r\n\t_limitZoom: function (zoom) {\r\n\t\tvar min = this.getMinZoom(),\r\n\t\t    max = this.getMaxZoom(),\r\n\t\t    snap = L.Browser.any3d ? this.options.zoomSnap : 1;\r\n\t\tif (snap) {\r\n\t\t\tzoom = Math.round(zoom / snap) * snap;\r\n\t\t}\r\n\t\treturn Math.max(min, Math.min(max, zoom));\r\n\t},\r\n\r\n\t_onPanTransitionStep: function () {\r\n\t\tthis.fire('move');\r\n\t},\r\n\r\n\t_onPanTransitionEnd: function () {\r\n\t\tL.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');\r\n\t\tthis.fire('moveend');\r\n\t},\r\n\r\n\t_tryAnimatedPan: function (center, options) {\r\n\t\t// difference between the new and current centers in pixels\r\n\t\tvar offset = this._getCenterOffset(center)._floor();\r\n\r\n\t\t// don't animate too far unless animate: true specified in options\r\n\t\tif ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }\r\n\r\n\t\tthis.panBy(offset, options);\r\n\r\n\t\treturn true;\r\n\t},\r\n\r\n\t_createAnimProxy: function () {\r\n\r\n\t\tvar proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated');\r\n\t\tthis._panes.mapPane.appendChild(proxy);\r\n\r\n\t\tthis.on('zoomanim', function (e) {\r\n\t\t\tvar prop = L.DomUtil.TRANSFORM,\r\n\t\t\t    transform = proxy.style[prop];\r\n\r\n\t\t\tL.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));\r\n\r\n\t\t\t// workaround for case when transform is the same and so transitionend event is not fired\r\n\t\t\tif (transform === proxy.style[prop] && this._animatingZoom) {\r\n\t\t\t\tthis._onZoomTransitionEnd();\r\n\t\t\t}\r\n\t\t}, this);\r\n\r\n\t\tthis.on('load moveend', function () {\r\n\t\t\tvar c = this.getCenter(),\r\n\t\t\t    z = this.getZoom();\r\n\t\t\tL.DomUtil.setTransform(proxy, this.project(c, z), this.getZoomScale(z, 1));\r\n\t\t}, this);\r\n\t},\r\n\r\n\t_catchTransitionEnd: function (e) {\r\n\t\tif (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {\r\n\t\t\tthis._onZoomTransitionEnd();\r\n\t\t}\r\n\t},\r\n\r\n\t_nothingToAnimate: function () {\r\n\t\treturn !this._container.getElementsByClassName('leaflet-zoom-animated').length;\r\n\t},\r\n\r\n\t_tryAnimatedZoom: function (center, zoom, options) {\r\n\r\n\t\tif (this._animatingZoom) { return true; }\r\n\r\n\t\toptions = options || {};\r\n\r\n\t\t// don't animate if disabled, not supported or zoom difference is too large\r\n\t\tif (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||\r\n\t\t        Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }\r\n\r\n\t\t// offset is the pixel coords of the zoom origin relative to the current center\r\n\t\tvar scale = this.getZoomScale(zoom),\r\n\t\t    offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale);\r\n\r\n\t\t// don't animate if the zoom origin isn't within one screen from the current center, unless forced\r\n\t\tif (options.animate !== true && !this.getSize().contains(offset)) { return false; }\r\n\r\n\t\tL.Util.requestAnimFrame(function () {\r\n\t\t\tthis\r\n\t\t\t    ._moveStart(true)\r\n\t\t\t    ._animateZoom(center, zoom, true);\r\n\t\t}, this);\r\n\r\n\t\treturn true;\r\n\t},\r\n\r\n\t_animateZoom: function (center, zoom, startAnim, noUpdate) {\r\n\t\tif (startAnim) {\r\n\t\t\tthis._animatingZoom = true;\r\n\r\n\t\t\t// remember what center/zoom to set after animation\r\n\t\t\tthis._animateToCenter = center;\r\n\t\t\tthis._animateToZoom = zoom;\r\n\r\n\t\t\tL.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');\r\n\t\t}\r\n\r\n\t\t// @event zoomanim: ZoomAnimEvent\r\n\t\t// Fired on every frame of a zoom animation\r\n\t\tthis.fire('zoomanim', {\r\n\t\t\tcenter: center,\r\n\t\t\tzoom: zoom,\r\n\t\t\tnoUpdate: noUpdate\r\n\t\t});\r\n\r\n\t\t// Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693\r\n\t\tsetTimeout(L.bind(this._onZoomTransitionEnd, this), 250);\r\n\t},\r\n\r\n\t_onZoomTransitionEnd: function () {\r\n\t\tif (!this._animatingZoom) { return; }\r\n\r\n\t\tL.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');\r\n\r\n\t\tthis._animatingZoom = false;\r\n\r\n\t\tthis._move(this._animateToCenter, this._animateToZoom);\r\n\r\n\t\t// This anim frame should prevent an obscure iOS webkit tile loading race condition.\r\n\t\tL.Util.requestAnimFrame(function () {\r\n\t\t\tthis._moveEnd(true);\r\n\t\t}, this);\r\n\t}\r\n});\r\n\r\n// @section\r\n\r\n// @factory L.map(id: String, options?: Map options)\r\n// Instantiates a map object given the DOM ID of a `<div>` element\r\n// and optionally an object literal with `Map options`.\r\n//\r\n// @alternative\r\n// @factory L.map(el: HTMLElement, options?: Map options)\r\n// Instantiates a map object given an instance of a `<div>` HTML element\r\n// and optionally an object literal with `Map options`.\r\nL.map = function (id, options) {\r\n\treturn new L.Map(id, options);\r\n};\r\n\n\n\n\n/*\n * @class Layer\n * @inherits Evented\n * @aka L.Layer\n * @aka ILayer\n *\n * A set of methods from the Layer base class that all Leaflet layers use.\n * Inherits all methods, options and events from `L.Evented`.\n *\n * @example\n *\n * ```js\n * var layer = L.Marker(latlng).addTo(map);\n * layer.addTo(map);\n * layer.remove();\n * ```\n *\n * @event add: Event\n * Fired after the layer is added to a map\n *\n * @event remove: Event\n * Fired after the layer is removed from a map\n */\n\n\nL.Layer = L.Evented.extend({\n\n\t// Classes extending `L.Layer` will inherit the following options:\n\toptions: {\n\t\t// @option pane: String = 'overlayPane'\n\t\t// By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default.\n\t\tpane: 'overlayPane',\n\t\tnonBubblingEvents: [],  // Array of events that should not be bubbled to DOM parents (like the map),\n\n\t\t// @option attribution: String = null\n\t\t// String to be shown in the attribution control, describes the layer data, e.g. \"© Mapbox\".\n\t\tattribution: null\n\t},\n\n\t/* @section\n\t * Classes extending `L.Layer` will inherit the following methods:\n\t *\n\t * @method addTo(map: Map): this\n\t * Adds the layer to the given map\n\t */\n\taddTo: function (map) {\n\t\tmap.addLayer(this);\n\t\treturn this;\n\t},\n\n\t// @method remove: this\n\t// Removes the layer from the map it is currently active on.\n\tremove: function () {\n\t\treturn this.removeFrom(this._map || this._mapToAdd);\n\t},\n\n\t// @method removeFrom(map: Map): this\n\t// Removes the layer from the given map\n\tremoveFrom: function (obj) {\n\t\tif (obj) {\n\t\t\tobj.removeLayer(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method getPane(name? : String): HTMLElement\n\t// Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer.\n\tgetPane: function (name) {\n\t\treturn this._map.getPane(name ? (this.options[name] || name) : this.options.pane);\n\t},\n\n\taddInteractiveTarget: function (targetEl) {\n\t\tthis._map._targets[L.stamp(targetEl)] = this;\n\t\treturn this;\n\t},\n\n\tremoveInteractiveTarget: function (targetEl) {\n\t\tdelete this._map._targets[L.stamp(targetEl)];\n\t\treturn this;\n\t},\n\n\t// @method getAttribution: String\n\t// Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution).\n\tgetAttribution: function () {\n\t\treturn this.options.attribution;\n\t},\n\n\t_layerAdd: function (e) {\n\t\tvar map = e.target;\n\n\t\t// check in case layer gets added and then removed before the map is ready\n\t\tif (!map.hasLayer(this)) { return; }\n\n\t\tthis._map = map;\n\t\tthis._zoomAnimated = map._zoomAnimated;\n\n\t\tif (this.getEvents) {\n\t\t\tvar events = this.getEvents();\n\t\t\tmap.on(events, this);\n\t\t\tthis.once('remove', function () {\n\t\t\t\tmap.off(events, this);\n\t\t\t}, this);\n\t\t}\n\n\t\tthis.onAdd(map);\n\n\t\tif (this.getAttribution && map.attributionControl) {\n\t\t\tmap.attributionControl.addAttribution(this.getAttribution());\n\t\t}\n\n\t\tthis.fire('add');\n\t\tmap.fire('layeradd', {layer: this});\n\t}\n});\n\n/* @section Extension methods\n * @uninheritable\n *\n * Every layer should extend from `L.Layer` and (re-)implement the following methods.\n *\n * @method onAdd(map: Map): this\n * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer).\n *\n * @method onRemove(map: Map): this\n * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer).\n *\n * @method getEvents(): Object\n * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer.\n *\n * @method getAttribution(): String\n * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible.\n *\n * @method beforeAdd(map: Map): this\n * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only.\n */\n\n\n/* @namespace Map\n * @section Layer events\n *\n * @event layeradd: LayerEvent\n * Fired when a new layer is added to the map.\n *\n * @event layerremove: LayerEvent\n * Fired when some layer is removed from the map\n *\n * @section Methods for Layers and Controls\n */\nL.Map.include({\n\t// @method addLayer(layer: Layer): this\n\t// Adds the given layer to the map\n\taddLayer: function (layer) {\n\t\tvar id = L.stamp(layer);\n\t\tif (this._layers[id]) { return this; }\n\t\tthis._layers[id] = layer;\n\n\t\tlayer._mapToAdd = this;\n\n\t\tif (layer.beforeAdd) {\n\t\t\tlayer.beforeAdd(this);\n\t\t}\n\n\t\tthis.whenReady(layer._layerAdd, layer);\n\n\t\treturn this;\n\t},\n\n\t// @method removeLayer(layer: Layer): this\n\t// Removes the given layer from the map.\n\tremoveLayer: function (layer) {\n\t\tvar id = L.stamp(layer);\n\n\t\tif (!this._layers[id]) { return this; }\n\n\t\tif (this._loaded) {\n\t\t\tlayer.onRemove(this);\n\t\t}\n\n\t\tif (layer.getAttribution && this.attributionControl) {\n\t\t\tthis.attributionControl.removeAttribution(layer.getAttribution());\n\t\t}\n\n\t\tdelete this._layers[id];\n\n\t\tif (this._loaded) {\n\t\t\tthis.fire('layerremove', {layer: layer});\n\t\t\tlayer.fire('remove');\n\t\t}\n\n\t\tlayer._map = layer._mapToAdd = null;\n\n\t\treturn this;\n\t},\n\n\t// @method hasLayer(layer: Layer): Boolean\n\t// Returns `true` if the given layer is currently added to the map\n\thasLayer: function (layer) {\n\t\treturn !!layer && (L.stamp(layer) in this._layers);\n\t},\n\n\t/* @method eachLayer(fn: Function, context?: Object): this\n\t * Iterates over the layers of the map, optionally specifying context of the iterator function.\n\t * ```\n\t * map.eachLayer(function(layer){\n\t *     layer.bindPopup('Hello');\n\t * });\n\t * ```\n\t */\n\teachLayer: function (method, context) {\n\t\tfor (var i in this._layers) {\n\t\t\tmethod.call(context, this._layers[i]);\n\t\t}\n\t\treturn this;\n\t},\n\n\t_addLayers: function (layers) {\n\t\tlayers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];\n\n\t\tfor (var i = 0, len = layers.length; i < len; i++) {\n\t\t\tthis.addLayer(layers[i]);\n\t\t}\n\t},\n\n\t_addZoomLimit: function (layer) {\n\t\tif (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {\n\t\t\tthis._zoomBoundLayers[L.stamp(layer)] = layer;\n\t\t\tthis._updateZoomLevels();\n\t\t}\n\t},\n\n\t_removeZoomLimit: function (layer) {\n\t\tvar id = L.stamp(layer);\n\n\t\tif (this._zoomBoundLayers[id]) {\n\t\t\tdelete this._zoomBoundLayers[id];\n\t\t\tthis._updateZoomLevels();\n\t\t}\n\t},\n\n\t_updateZoomLevels: function () {\n\t\tvar minZoom = Infinity,\n\t\t    maxZoom = -Infinity,\n\t\t    oldZoomSpan = this._getZoomSpan();\n\n\t\tfor (var i in this._zoomBoundLayers) {\n\t\t\tvar options = this._zoomBoundLayers[i].options;\n\n\t\t\tminZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);\n\t\t\tmaxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);\n\t\t}\n\n\t\tthis._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;\n\t\tthis._layersMinZoom = minZoom === Infinity ? undefined : minZoom;\n\n\t\t// @section Map state change events\n\t\t// @event zoomlevelschange: Event\n\t\t// Fired when the number of zoomlevels on the map is changed due\n\t\t// to adding or removing a layer.\n\t\tif (oldZoomSpan !== this._getZoomSpan()) {\n\t\t\tthis.fire('zoomlevelschange');\n\t\t}\n\n\t\tif (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) {\n\t\t\tthis.setZoom(this._layersMaxZoom);\n\t\t}\n\t\tif (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) {\n\t\t\tthis.setZoom(this._layersMinZoom);\n\t\t}\n\t}\n});\n\n\n\n/*\r\n * @namespace DomEvent\r\n * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally.\r\n */\r\n\r\n// Inspired by John Resig, Dean Edwards and YUI addEvent implementations.\r\n\r\n\r\n\r\nvar eventsKey = '_leaflet_events';\r\n\r\nL.DomEvent = {\r\n\r\n\t// @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this\r\n\t// Adds a listener function (`fn`) to a particular DOM event type of the\r\n\t// element `el`. You can optionally specify the context of the listener\r\n\t// (object the `this` keyword will point to). You can also pass several\r\n\t// space-separated types (e.g. `'click dblclick'`).\r\n\r\n\t// @alternative\r\n\t// @function on(el: HTMLElement, eventMap: Object, context?: Object): this\r\n\t// Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n\ton: function (obj, types, fn, context) {\r\n\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis._on(obj, type, types[type], fn);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._on(obj, types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this\r\n\t// Removes a previously added listener function. If no function is specified,\r\n\t// it will remove all the listeners of that particular DOM event from the element.\r\n\t// Note that if you passed a custom context to on, you must pass the same\r\n\t// context to `off` in order to remove the listener.\r\n\r\n\t// @alternative\r\n\t// @function off(el: HTMLElement, eventMap: Object, context?: Object): this\r\n\t// Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n\toff: function (obj, types, fn, context) {\r\n\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis._off(obj, type, types[type], fn);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._off(obj, types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_on: function (obj, type, fn, context) {\r\n\t\tvar id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : '');\r\n\r\n\t\tif (obj[eventsKey] && obj[eventsKey][id]) { return this; }\r\n\r\n\t\tvar handler = function (e) {\r\n\t\t\treturn fn.call(context || obj, e || window.event);\r\n\t\t};\r\n\r\n\t\tvar originalHandler = handler;\r\n\r\n\t\tif (L.Browser.pointer && type.indexOf('touch') === 0) {\r\n\t\t\tthis.addPointerListener(obj, type, handler, id);\r\n\r\n\t\t} else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener &&\r\n\t\t           !(L.Browser.pointer && L.Browser.chrome)) {\r\n\t\t\t// Chrome >55 does not need the synthetic dblclicks from addDoubleTapListener\r\n\t\t\t// See #5180\r\n\t\t\tthis.addDoubleTapListener(obj, handler, id);\r\n\r\n\t\t} else if ('addEventListener' in obj) {\r\n\r\n\t\t\tif (type === 'mousewheel') {\r\n\t\t\t\tobj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);\r\n\r\n\t\t\t} else if ((type === 'mouseenter') || (type === 'mouseleave')) {\r\n\t\t\t\thandler = function (e) {\r\n\t\t\t\t\te = e || window.event;\r\n\t\t\t\t\tif (L.DomEvent._isExternalTarget(obj, e)) {\r\n\t\t\t\t\t\toriginalHandler(e);\r\n\t\t\t\t\t}\r\n\t\t\t\t};\r\n\t\t\t\tobj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false);\r\n\r\n\t\t\t} else {\r\n\t\t\t\tif (type === 'click' && L.Browser.android) {\r\n\t\t\t\t\thandler = function (e) {\r\n\t\t\t\t\t\treturn L.DomEvent._filterClick(e, originalHandler);\r\n\t\t\t\t\t};\r\n\t\t\t\t}\r\n\t\t\t\tobj.addEventListener(type, handler, false);\r\n\t\t\t}\r\n\r\n\t\t} else if ('attachEvent' in obj) {\r\n\t\t\tobj.attachEvent('on' + type, handler);\r\n\t\t}\r\n\r\n\t\tobj[eventsKey] = obj[eventsKey] || {};\r\n\t\tobj[eventsKey][id] = handler;\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_off: function (obj, type, fn, context) {\r\n\r\n\t\tvar id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''),\r\n\t\t    handler = obj[eventsKey] && obj[eventsKey][id];\r\n\r\n\t\tif (!handler) { return this; }\r\n\r\n\t\tif (L.Browser.pointer && type.indexOf('touch') === 0) {\r\n\t\t\tthis.removePointerListener(obj, type, id);\r\n\r\n\t\t} else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {\r\n\t\t\tthis.removeDoubleTapListener(obj, id);\r\n\r\n\t\t} else if ('removeEventListener' in obj) {\r\n\r\n\t\t\tif (type === 'mousewheel') {\r\n\t\t\t\tobj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);\r\n\r\n\t\t\t} else {\r\n\t\t\t\tobj.removeEventListener(\r\n\t\t\t\t\ttype === 'mouseenter' ? 'mouseover' :\r\n\t\t\t\t\ttype === 'mouseleave' ? 'mouseout' : type, handler, false);\r\n\t\t\t}\r\n\r\n\t\t} else if ('detachEvent' in obj) {\r\n\t\t\tobj.detachEvent('on' + type, handler);\r\n\t\t}\r\n\r\n\t\tobj[eventsKey][id] = null;\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function stopPropagation(ev: DOMEvent): this\r\n\t// Stop the given event from propagation to parent elements. Used inside the listener functions:\r\n\t// ```js\r\n\t// L.DomEvent.on(div, 'click', function (ev) {\r\n\t// \tL.DomEvent.stopPropagation(ev);\r\n\t// });\r\n\t// ```\r\n\tstopPropagation: function (e) {\r\n\r\n\t\tif (e.stopPropagation) {\r\n\t\t\te.stopPropagation();\r\n\t\t} else if (e.originalEvent) {  // In case of Leaflet event.\r\n\t\t\te.originalEvent._stopped = true;\r\n\t\t} else {\r\n\t\t\te.cancelBubble = true;\r\n\t\t}\r\n\t\tL.DomEvent._skipped(e);\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function disableScrollPropagation(el: HTMLElement): this\r\n\t// Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants).\r\n\tdisableScrollPropagation: function (el) {\r\n\t\treturn L.DomEvent.on(el, 'mousewheel', L.DomEvent.stopPropagation);\r\n\t},\r\n\r\n\t// @function disableClickPropagation(el: HTMLElement): this\r\n\t// Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`,\r\n\t// `'mousedown'` and `'touchstart'` events (plus browser variants).\r\n\tdisableClickPropagation: function (el) {\r\n\t\tvar stop = L.DomEvent.stopPropagation;\r\n\r\n\t\tL.DomEvent.on(el, L.Draggable.START.join(' '), stop);\r\n\r\n\t\treturn L.DomEvent.on(el, {\r\n\t\t\tclick: L.DomEvent._fakeStop,\r\n\t\t\tdblclick: stop\r\n\t\t});\r\n\t},\r\n\r\n\t// @function preventDefault(ev: DOMEvent): this\r\n\t// Prevents the default action of the DOM Event `ev` from happening (such as\r\n\t// following a link in the href of the a element, or doing a POST request\r\n\t// with page reload when a `<form>` is submitted).\r\n\t// Use it inside listener functions.\r\n\tpreventDefault: function (e) {\r\n\r\n\t\tif (e.preventDefault) {\r\n\t\t\te.preventDefault();\r\n\t\t} else {\r\n\t\t\te.returnValue = false;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function stop(ev): this\r\n\t// Does `stopPropagation` and `preventDefault` at the same time.\r\n\tstop: function (e) {\r\n\t\treturn L.DomEvent\r\n\t\t\t.preventDefault(e)\r\n\t\t\t.stopPropagation(e);\r\n\t},\r\n\r\n\t// @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point\r\n\t// Gets normalized mouse position from a DOM event relative to the\r\n\t// `container` or to the whole page if not specified.\r\n\tgetMousePosition: function (e, container) {\r\n\t\tif (!container) {\r\n\t\t\treturn new L.Point(e.clientX, e.clientY);\r\n\t\t}\r\n\r\n\t\tvar rect = container.getBoundingClientRect();\r\n\r\n\t\treturn new L.Point(\r\n\t\t\te.clientX - rect.left - container.clientLeft,\r\n\t\t\te.clientY - rect.top - container.clientTop);\r\n\t},\r\n\r\n\t// Chrome on Win scrolls double the pixels as in other platforms (see #4538),\r\n\t// and Firefox scrolls device pixels, not CSS pixels\r\n\t_wheelPxFactor: (L.Browser.win && L.Browser.chrome) ? 2 :\r\n\t                L.Browser.gecko ? window.devicePixelRatio :\r\n\t                1,\r\n\r\n\t// @function getWheelDelta(ev: DOMEvent): Number\r\n\t// Gets normalized wheel delta from a mousewheel DOM event, in vertical\r\n\t// pixels scrolled (negative if scrolling down).\r\n\t// Events from pointing devices without precise scrolling are mapped to\r\n\t// a best guess of 60 pixels.\r\n\tgetWheelDelta: function (e) {\r\n\t\treturn (L.Browser.edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta\r\n\t\t       (e.deltaY && e.deltaMode === 0) ? -e.deltaY / L.DomEvent._wheelPxFactor : // Pixels\r\n\t\t       (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines\r\n\t\t       (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages\r\n\t\t       (e.deltaX || e.deltaZ) ? 0 :\t// Skip horizontal/depth wheel events\r\n\t\t       e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels\r\n\t\t       (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines\r\n\t\t       e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages\r\n\t\t       0;\r\n\t},\r\n\r\n\t_skipEvents: {},\r\n\r\n\t_fakeStop: function (e) {\r\n\t\t// fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)\r\n\t\tL.DomEvent._skipEvents[e.type] = true;\r\n\t},\r\n\r\n\t_skipped: function (e) {\r\n\t\tvar skipped = this._skipEvents[e.type];\r\n\t\t// reset when checking, as it's only used in map container and propagates outside of the map\r\n\t\tthis._skipEvents[e.type] = false;\r\n\t\treturn skipped;\r\n\t},\r\n\r\n\t// check if element really left/entered the event target (for mouseenter/mouseleave)\r\n\t_isExternalTarget: function (el, e) {\r\n\r\n\t\tvar related = e.relatedTarget;\r\n\r\n\t\tif (!related) { return true; }\r\n\r\n\t\ttry {\r\n\t\t\twhile (related && (related !== el)) {\r\n\t\t\t\trelated = related.parentNode;\r\n\t\t\t}\r\n\t\t} catch (err) {\r\n\t\t\treturn false;\r\n\t\t}\r\n\t\treturn (related !== el);\r\n\t},\r\n\r\n\t// this is a horrible workaround for a bug in Android where a single touch triggers two click events\r\n\t_filterClick: function (e, handler) {\r\n\t\tvar timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)),\r\n\t\t    elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);\r\n\r\n\t\t// are they closer together than 500ms yet more than 100ms?\r\n\t\t// Android typically triggers them ~300ms apart while multiple listeners\r\n\t\t// on the same event should be triggered far faster;\r\n\t\t// or check if click is simulated on the element, and if it is, reject any non-simulated events\r\n\r\n\t\tif ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {\r\n\t\t\tL.DomEvent.stop(e);\r\n\t\t\treturn;\r\n\t\t}\r\n\t\tL.DomEvent._lastClick = timeStamp;\r\n\r\n\t\thandler(e);\r\n\t}\r\n};\r\n\r\n// @function addListener(…): this\r\n// Alias to [`L.DomEvent.on`](#domevent-on)\r\nL.DomEvent.addListener = L.DomEvent.on;\r\n\r\n// @function removeListener(…): this\r\n// Alias to [`L.DomEvent.off`](#domevent-off)\r\nL.DomEvent.removeListener = L.DomEvent.off;\r\n\n\n\n/*\n * @class PosAnimation\n * @aka L.PosAnimation\n * @inherits Evented\n * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9.\n *\n * @example\n * ```js\n * var fx = new L.PosAnimation();\n * fx.run(el, [300, 500], 0.5);\n * ```\n *\n * @constructor L.PosAnimation()\n * Creates a `PosAnimation` object.\n *\n */\n\nL.PosAnimation = L.Evented.extend({\n\n\t// @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number)\n\t// Run an animation of a given element to a new position, optionally setting\n\t// duration in seconds (`0.25` by default) and easing linearity factor (3rd\n\t// argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1),\n\t// `0.5` by default).\n\trun: function (el, newPos, duration, easeLinearity) {\n\t\tthis.stop();\n\n\t\tthis._el = el;\n\t\tthis._inProgress = true;\n\t\tthis._duration = duration || 0.25;\n\t\tthis._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);\n\n\t\tthis._startPos = L.DomUtil.getPosition(el);\n\t\tthis._offset = newPos.subtract(this._startPos);\n\t\tthis._startTime = +new Date();\n\n\t\t// @event start: Event\n\t\t// Fired when the animation starts\n\t\tthis.fire('start');\n\n\t\tthis._animate();\n\t},\n\n\t// @method stop()\n\t// Stops the animation (if currently running).\n\tstop: function () {\n\t\tif (!this._inProgress) { return; }\n\n\t\tthis._step(true);\n\t\tthis._complete();\n\t},\n\n\t_animate: function () {\n\t\t// animation loop\n\t\tthis._animId = L.Util.requestAnimFrame(this._animate, this);\n\t\tthis._step();\n\t},\n\n\t_step: function (round) {\n\t\tvar elapsed = (+new Date()) - this._startTime,\n\t\t    duration = this._duration * 1000;\n\n\t\tif (elapsed < duration) {\n\t\t\tthis._runFrame(this._easeOut(elapsed / duration), round);\n\t\t} else {\n\t\t\tthis._runFrame(1);\n\t\t\tthis._complete();\n\t\t}\n\t},\n\n\t_runFrame: function (progress, round) {\n\t\tvar pos = this._startPos.add(this._offset.multiplyBy(progress));\n\t\tif (round) {\n\t\t\tpos._round();\n\t\t}\n\t\tL.DomUtil.setPosition(this._el, pos);\n\n\t\t// @event step: Event\n\t\t// Fired continuously during the animation.\n\t\tthis.fire('step');\n\t},\n\n\t_complete: function () {\n\t\tL.Util.cancelAnimFrame(this._animId);\n\n\t\tthis._inProgress = false;\n\t\t// @event end: Event\n\t\t// Fired when the animation ends.\n\t\tthis.fire('end');\n\t},\n\n\t_easeOut: function (t) {\n\t\treturn 1 - Math.pow(1 - t, this._easeOutPower);\n\t}\n});\n\n\n\n/*\r\n * @namespace Projection\r\n * @projection L.Projection.Mercator\r\n *\r\n * Elliptical Mercator projection — more complex than Spherical Mercator. Takes into account that Earth is a geoid, not a perfect sphere. Used by the EPSG:3395 CRS.\r\n */\r\n\r\nL.Projection.Mercator = {\r\n\tR: 6378137,\r\n\tR_MINOR: 6356752.314245179,\r\n\r\n\tbounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),\r\n\r\n\tproject: function (latlng) {\r\n\t\tvar d = Math.PI / 180,\r\n\t\t    r = this.R,\r\n\t\t    y = latlng.lat * d,\r\n\t\t    tmp = this.R_MINOR / r,\r\n\t\t    e = Math.sqrt(1 - tmp * tmp),\r\n\t\t    con = e * Math.sin(y);\r\n\r\n\t\tvar ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2);\r\n\t\ty = -r * Math.log(Math.max(ts, 1E-10));\r\n\r\n\t\treturn new L.Point(latlng.lng * d * r, y);\r\n\t},\r\n\r\n\tunproject: function (point) {\r\n\t\tvar d = 180 / Math.PI,\r\n\t\t    r = this.R,\r\n\t\t    tmp = this.R_MINOR / r,\r\n\t\t    e = Math.sqrt(1 - tmp * tmp),\r\n\t\t    ts = Math.exp(-point.y / r),\r\n\t\t    phi = Math.PI / 2 - 2 * Math.atan(ts);\r\n\r\n\t\tfor (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) {\r\n\t\t\tcon = e * Math.sin(phi);\r\n\t\t\tcon = Math.pow((1 - con) / (1 + con), e / 2);\r\n\t\t\tdphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi;\r\n\t\t\tphi += dphi;\r\n\t\t}\r\n\r\n\t\treturn new L.LatLng(phi * d, point.x * d / r);\r\n\t}\r\n};\r\n\n\n\n/*\r\n * @namespace CRS\r\n * @crs L.CRS.EPSG3395\r\n *\r\n * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection.\r\n */\r\n\r\nL.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, {\r\n\tcode: 'EPSG:3395',\r\n\tprojection: L.Projection.Mercator,\r\n\r\n\ttransformation: (function () {\r\n\t\tvar scale = 0.5 / (Math.PI * L.Projection.Mercator.R);\r\n\t\treturn new L.Transformation(scale, 0.5, -scale, 0.5);\r\n\t}())\r\n});\r\n\n\n\n/*\n * @class GridLayer\n * @inherits Layer\n * @aka L.GridLayer\n *\n * Generic class for handling a tiled grid of HTML elements. This is the base class for all tile layers and replaces `TileLayer.Canvas`.\n * GridLayer can be extended to create a tiled grid of HTML elements like `<canvas>`, `<img>` or `<div>`. GridLayer will handle creating and animating these DOM elements for you.\n *\n *\n * @section Synchronous usage\n * @example\n *\n * To create a custom layer, extend GridLayer and implement the `createTile()` method, which will be passed a `Point` object with the `x`, `y`, and `z` (zoom level) coordinates to draw your tile.\n *\n * ```js\n * var CanvasLayer = L.GridLayer.extend({\n *     createTile: function(coords){\n *         // create a <canvas> element for drawing\n *         var tile = L.DomUtil.create('canvas', 'leaflet-tile');\n *\n *         // setup tile width and height according to the options\n *         var size = this.getTileSize();\n *         tile.width = size.x;\n *         tile.height = size.y;\n *\n *         // get a canvas context and draw something on it using coords.x, coords.y and coords.z\n *         var ctx = tile.getContext('2d');\n *\n *         // return the tile so it can be rendered on screen\n *         return tile;\n *     }\n * });\n * ```\n *\n * @section Asynchronous usage\n * @example\n *\n * Tile creation can also be asynchronous, this is useful when using a third-party drawing library. Once the tile is finished drawing it can be passed to the `done()` callback.\n *\n * ```js\n * var CanvasLayer = L.GridLayer.extend({\n *     createTile: function(coords, done){\n *         var error;\n *\n *         // create a <canvas> element for drawing\n *         var tile = L.DomUtil.create('canvas', 'leaflet-tile');\n *\n *         // setup tile width and height according to the options\n *         var size = this.getTileSize();\n *         tile.width = size.x;\n *         tile.height = size.y;\n *\n *         // draw something asynchronously and pass the tile to the done() callback\n *         setTimeout(function() {\n *             done(error, tile);\n *         }, 1000);\n *\n *         return tile;\n *     }\n * });\n * ```\n *\n * @section\n */\n\n\nL.GridLayer = L.Layer.extend({\n\n\t// @section\n\t// @aka GridLayer options\n\toptions: {\n\t\t// @option tileSize: Number|Point = 256\n\t\t// Width and height of tiles in the grid. Use a number if width and height are equal, or `L.point(width, height)` otherwise.\n\t\ttileSize: 256,\n\n\t\t// @option opacity: Number = 1.0\n\t\t// Opacity of the tiles. Can be used in the `createTile()` function.\n\t\topacity: 1,\n\n\t\t// @option updateWhenIdle: Boolean = depends\n\t\t// If `false`, new tiles are loaded during panning, otherwise only after it (for better performance). `true` by default on mobile browsers, otherwise `false`.\n\t\tupdateWhenIdle: L.Browser.mobile,\n\n\t\t// @option updateWhenZooming: Boolean = true\n\t\t// By default, a smooth zoom animation (during a [touch zoom](#map-touchzoom) or a [`flyTo()`](#map-flyto)) will update grid layers every integer zoom level. Setting this option to `false` will update the grid layer only when the smooth animation ends.\n\t\tupdateWhenZooming: true,\n\n\t\t// @option updateInterval: Number = 200\n\t\t// Tiles will not update more than once every `updateInterval` milliseconds when panning.\n\t\tupdateInterval: 200,\n\n\t\t// @option zIndex: Number = 1\n\t\t// The explicit zIndex of the tile layer.\n\t\tzIndex: 1,\n\n\t\t// @option bounds: LatLngBounds = undefined\n\t\t// If set, tiles will only be loaded inside the set `LatLngBounds`.\n\t\tbounds: null,\n\n\t\t// @option minZoom: Number = 0\n\t\t// The minimum zoom level that tiles will be loaded at. By default the entire map.\n\t\tminZoom: 0,\n\n\t\t// @option maxZoom: Number = undefined\n\t\t// The maximum zoom level that tiles will be loaded at.\n\t\tmaxZoom: undefined,\n\n\t\t// @option noWrap: Boolean = false\n\t\t// Whether the layer is wrapped around the antimeridian. If `true`, the\n\t\t// GridLayer will only be displayed once at low zoom levels. Has no\n\t\t// effect when the [map CRS](#map-crs) doesn't wrap around. Can be used\n\t\t// in combination with [`bounds`](#gridlayer-bounds) to prevent requesting\n\t\t// tiles outside the CRS limits.\n\t\tnoWrap: false,\n\n\t\t// @option pane: String = 'tilePane'\n\t\t// `Map pane` where the grid layer will be added.\n\t\tpane: 'tilePane',\n\n\t\t// @option className: String = ''\n\t\t// A custom class name to assign to the tile layer. Empty by default.\n\t\tclassName: '',\n\n\t\t// @option keepBuffer: Number = 2\n\t\t// When panning the map, keep this many rows and columns of tiles before unloading them.\n\t\tkeepBuffer: 2\n\t},\n\n\tinitialize: function (options) {\n\t\tL.setOptions(this, options);\n\t},\n\n\tonAdd: function () {\n\t\tthis._initContainer();\n\n\t\tthis._levels = {};\n\t\tthis._tiles = {};\n\n\t\tthis._resetView();\n\t\tthis._update();\n\t},\n\n\tbeforeAdd: function (map) {\n\t\tmap._addZoomLimit(this);\n\t},\n\n\tonRemove: function (map) {\n\t\tthis._removeAllTiles();\n\t\tL.DomUtil.remove(this._container);\n\t\tmap._removeZoomLimit(this);\n\t\tthis._container = null;\n\t\tthis._tileZoom = null;\n\t},\n\n\t// @method bringToFront: this\n\t// Brings the tile layer to the top of all tile layers.\n\tbringToFront: function () {\n\t\tif (this._map) {\n\t\t\tL.DomUtil.toFront(this._container);\n\t\t\tthis._setAutoZIndex(Math.max);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method bringToBack: this\n\t// Brings the tile layer to the bottom of all tile layers.\n\tbringToBack: function () {\n\t\tif (this._map) {\n\t\t\tL.DomUtil.toBack(this._container);\n\t\t\tthis._setAutoZIndex(Math.min);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method getContainer: HTMLElement\n\t// Returns the HTML element that contains the tiles for this layer.\n\tgetContainer: function () {\n\t\treturn this._container;\n\t},\n\n\t// @method setOpacity(opacity: Number): this\n\t// Changes the [opacity](#gridlayer-opacity) of the grid layer.\n\tsetOpacity: function (opacity) {\n\t\tthis.options.opacity = opacity;\n\t\tthis._updateOpacity();\n\t\treturn this;\n\t},\n\n\t// @method setZIndex(zIndex: Number): this\n\t// Changes the [zIndex](#gridlayer-zindex) of the grid layer.\n\tsetZIndex: function (zIndex) {\n\t\tthis.options.zIndex = zIndex;\n\t\tthis._updateZIndex();\n\n\t\treturn this;\n\t},\n\n\t// @method isLoading: Boolean\n\t// Returns `true` if any tile in the grid layer has not finished loading.\n\tisLoading: function () {\n\t\treturn this._loading;\n\t},\n\n\t// @method redraw: this\n\t// Causes the layer to clear all the tiles and request them again.\n\tredraw: function () {\n\t\tif (this._map) {\n\t\t\tthis._removeAllTiles();\n\t\t\tthis._update();\n\t\t}\n\t\treturn this;\n\t},\n\n\tgetEvents: function () {\n\t\tvar events = {\n\t\t\tviewprereset: this._invalidateAll,\n\t\t\tviewreset: this._resetView,\n\t\t\tzoom: this._resetView,\n\t\t\tmoveend: this._onMoveEnd\n\t\t};\n\n\t\tif (!this.options.updateWhenIdle) {\n\t\t\t// update tiles on move, but not more often than once per given interval\n\t\t\tif (!this._onMove) {\n\t\t\t\tthis._onMove = L.Util.throttle(this._onMoveEnd, this.options.updateInterval, this);\n\t\t\t}\n\n\t\t\tevents.move = this._onMove;\n\t\t}\n\n\t\tif (this._zoomAnimated) {\n\t\t\tevents.zoomanim = this._animateZoom;\n\t\t}\n\n\t\treturn events;\n\t},\n\n\t// @section Extension methods\n\t// Layers extending `GridLayer` shall reimplement the following method.\n\t// @method createTile(coords: Object, done?: Function): HTMLElement\n\t// Called only internally, must be overriden by classes extending `GridLayer`.\n\t// Returns the `HTMLElement` corresponding to the given `coords`. If the `done` callback\n\t// is specified, it must be called when the tile has finished loading and drawing.\n\tcreateTile: function () {\n\t\treturn document.createElement('div');\n\t},\n\n\t// @section\n\t// @method getTileSize: Point\n\t// Normalizes the [tileSize option](#gridlayer-tilesize) into a point. Used by the `createTile()` method.\n\tgetTileSize: function () {\n\t\tvar s = this.options.tileSize;\n\t\treturn s instanceof L.Point ? s : new L.Point(s, s);\n\t},\n\n\t_updateZIndex: function () {\n\t\tif (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) {\n\t\t\tthis._container.style.zIndex = this.options.zIndex;\n\t\t}\n\t},\n\n\t_setAutoZIndex: function (compare) {\n\t\t// go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)\n\n\t\tvar layers = this.getPane().children,\n\t\t    edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min\n\n\t\tfor (var i = 0, len = layers.length, zIndex; i < len; i++) {\n\n\t\t\tzIndex = layers[i].style.zIndex;\n\n\t\t\tif (layers[i] !== this._container && zIndex) {\n\t\t\t\tedgeZIndex = compare(edgeZIndex, +zIndex);\n\t\t\t}\n\t\t}\n\n\t\tif (isFinite(edgeZIndex)) {\n\t\t\tthis.options.zIndex = edgeZIndex + compare(-1, 1);\n\t\t\tthis._updateZIndex();\n\t\t}\n\t},\n\n\t_updateOpacity: function () {\n\t\tif (!this._map) { return; }\n\n\t\t// IE doesn't inherit filter opacity properly, so we're forced to set it on tiles\n\t\tif (L.Browser.ielt9) { return; }\n\n\t\tL.DomUtil.setOpacity(this._container, this.options.opacity);\n\n\t\tvar now = +new Date(),\n\t\t    nextFrame = false,\n\t\t    willPrune = false;\n\n\t\tfor (var key in this._tiles) {\n\t\t\tvar tile = this._tiles[key];\n\t\t\tif (!tile.current || !tile.loaded) { continue; }\n\n\t\t\tvar fade = Math.min(1, (now - tile.loaded) / 200);\n\n\t\t\tL.DomUtil.setOpacity(tile.el, fade);\n\t\t\tif (fade < 1) {\n\t\t\t\tnextFrame = true;\n\t\t\t} else {\n\t\t\t\tif (tile.active) { willPrune = true; }\n\t\t\t\ttile.active = true;\n\t\t\t}\n\t\t}\n\n\t\tif (willPrune && !this._noPrune) { this._pruneTiles(); }\n\n\t\tif (nextFrame) {\n\t\t\tL.Util.cancelAnimFrame(this._fadeFrame);\n\t\t\tthis._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);\n\t\t}\n\t},\n\n\t_initContainer: function () {\n\t\tif (this._container) { return; }\n\n\t\tthis._container = L.DomUtil.create('div', 'leaflet-layer ' + (this.options.className || ''));\n\t\tthis._updateZIndex();\n\n\t\tif (this.options.opacity < 1) {\n\t\t\tthis._updateOpacity();\n\t\t}\n\n\t\tthis.getPane().appendChild(this._container);\n\t},\n\n\t_updateLevels: function () {\n\n\t\tvar zoom = this._tileZoom,\n\t\t    maxZoom = this.options.maxZoom;\n\n\t\tif (zoom === undefined) { return undefined; }\n\n\t\tfor (var z in this._levels) {\n\t\t\tif (this._levels[z].el.children.length || z === zoom) {\n\t\t\t\tthis._levels[z].el.style.zIndex = maxZoom - Math.abs(zoom - z);\n\t\t\t} else {\n\t\t\t\tL.DomUtil.remove(this._levels[z].el);\n\t\t\t\tthis._removeTilesAtZoom(z);\n\t\t\t\tdelete this._levels[z];\n\t\t\t}\n\t\t}\n\n\t\tvar level = this._levels[zoom],\n\t\t    map = this._map;\n\n\t\tif (!level) {\n\t\t\tlevel = this._levels[zoom] = {};\n\n\t\t\tlevel.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);\n\t\t\tlevel.el.style.zIndex = maxZoom;\n\n\t\t\tlevel.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();\n\t\t\tlevel.zoom = zoom;\n\n\t\t\tthis._setZoomTransform(level, map.getCenter(), map.getZoom());\n\n\t\t\t// force the browser to consider the newly added element for transition\n\t\t\tL.Util.falseFn(level.el.offsetWidth);\n\t\t}\n\n\t\tthis._level = level;\n\n\t\treturn level;\n\t},\n\n\t_pruneTiles: function () {\n\t\tif (!this._map) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar key, tile;\n\n\t\tvar zoom = this._map.getZoom();\n\t\tif (zoom > this.options.maxZoom ||\n\t\t\tzoom < this.options.minZoom) {\n\t\t\tthis._removeAllTiles();\n\t\t\treturn;\n\t\t}\n\n\t\tfor (key in this._tiles) {\n\t\t\ttile = this._tiles[key];\n\t\t\ttile.retain = tile.current;\n\t\t}\n\n\t\tfor (key in this._tiles) {\n\t\t\ttile = this._tiles[key];\n\t\t\tif (tile.current && !tile.active) {\n\t\t\t\tvar coords = tile.coords;\n\t\t\t\tif (!this._retainParent(coords.x, coords.y, coords.z, coords.z - 5)) {\n\t\t\t\t\tthis._retainChildren(coords.x, coords.y, coords.z, coords.z + 2);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor (key in this._tiles) {\n\t\t\tif (!this._tiles[key].retain) {\n\t\t\t\tthis._removeTile(key);\n\t\t\t}\n\t\t}\n\t},\n\n\t_removeTilesAtZoom: function (zoom) {\n\t\tfor (var key in this._tiles) {\n\t\t\tif (this._tiles[key].coords.z !== zoom) {\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tthis._removeTile(key);\n\t\t}\n\t},\n\n\t_removeAllTiles: function () {\n\t\tfor (var key in this._tiles) {\n\t\t\tthis._removeTile(key);\n\t\t}\n\t},\n\n\t_invalidateAll: function () {\n\t\tfor (var z in this._levels) {\n\t\t\tL.DomUtil.remove(this._levels[z].el);\n\t\t\tdelete this._levels[z];\n\t\t}\n\t\tthis._removeAllTiles();\n\n\t\tthis._tileZoom = null;\n\t},\n\n\t_retainParent: function (x, y, z, minZoom) {\n\t\tvar x2 = Math.floor(x / 2),\n\t\t    y2 = Math.floor(y / 2),\n\t\t    z2 = z - 1,\n\t\t    coords2 = new L.Point(+x2, +y2);\n\t\tcoords2.z = +z2;\n\n\t\tvar key = this._tileCoordsToKey(coords2),\n\t\t    tile = this._tiles[key];\n\n\t\tif (tile && tile.active) {\n\t\t\ttile.retain = true;\n\t\t\treturn true;\n\n\t\t} else if (tile && tile.loaded) {\n\t\t\ttile.retain = true;\n\t\t}\n\n\t\tif (z2 > minZoom) {\n\t\t\treturn this._retainParent(x2, y2, z2, minZoom);\n\t\t}\n\n\t\treturn false;\n\t},\n\n\t_retainChildren: function (x, y, z, maxZoom) {\n\n\t\tfor (var i = 2 * x; i < 2 * x + 2; i++) {\n\t\t\tfor (var j = 2 * y; j < 2 * y + 2; j++) {\n\n\t\t\t\tvar coords = new L.Point(i, j);\n\t\t\t\tcoords.z = z + 1;\n\n\t\t\t\tvar key = this._tileCoordsToKey(coords),\n\t\t\t\t    tile = this._tiles[key];\n\n\t\t\t\tif (tile && tile.active) {\n\t\t\t\t\ttile.retain = true;\n\t\t\t\t\tcontinue;\n\n\t\t\t\t} else if (tile && tile.loaded) {\n\t\t\t\t\ttile.retain = true;\n\t\t\t\t}\n\n\t\t\t\tif (z + 1 < maxZoom) {\n\t\t\t\t\tthis._retainChildren(i, j, z + 1, maxZoom);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t_resetView: function (e) {\n\t\tvar animating = e && (e.pinch || e.flyTo);\n\t\tthis._setView(this._map.getCenter(), this._map.getZoom(), animating, animating);\n\t},\n\n\t_animateZoom: function (e) {\n\t\tthis._setView(e.center, e.zoom, true, e.noUpdate);\n\t},\n\n\t_setView: function (center, zoom, noPrune, noUpdate) {\n\t\tvar tileZoom = Math.round(zoom);\n\t\tif ((this.options.maxZoom !== undefined && tileZoom > this.options.maxZoom) ||\n\t\t    (this.options.minZoom !== undefined && tileZoom < this.options.minZoom)) {\n\t\t\ttileZoom = undefined;\n\t\t}\n\n\t\tvar tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom);\n\n\t\tif (!noUpdate || tileZoomChanged) {\n\n\t\t\tthis._tileZoom = tileZoom;\n\n\t\t\tif (this._abortLoading) {\n\t\t\t\tthis._abortLoading();\n\t\t\t}\n\n\t\t\tthis._updateLevels();\n\t\t\tthis._resetGrid();\n\n\t\t\tif (tileZoom !== undefined) {\n\t\t\t\tthis._update(center);\n\t\t\t}\n\n\t\t\tif (!noPrune) {\n\t\t\t\tthis._pruneTiles();\n\t\t\t}\n\n\t\t\t// Flag to prevent _updateOpacity from pruning tiles during\n\t\t\t// a zoom anim or a pinch gesture\n\t\t\tthis._noPrune = !!noPrune;\n\t\t}\n\n\t\tthis._setZoomTransforms(center, zoom);\n\t},\n\n\t_setZoomTransforms: function (center, zoom) {\n\t\tfor (var i in this._levels) {\n\t\t\tthis._setZoomTransform(this._levels[i], center, zoom);\n\t\t}\n\t},\n\n\t_setZoomTransform: function (level, center, zoom) {\n\t\tvar scale = this._map.getZoomScale(zoom, level.zoom),\n\t\t    translate = level.origin.multiplyBy(scale)\n\t\t        .subtract(this._map._getNewPixelOrigin(center, zoom)).round();\n\n\t\tif (L.Browser.any3d) {\n\t\t\tL.DomUtil.setTransform(level.el, translate, scale);\n\t\t} else {\n\t\t\tL.DomUtil.setPosition(level.el, translate);\n\t\t}\n\t},\n\n\t_resetGrid: function () {\n\t\tvar map = this._map,\n\t\t    crs = map.options.crs,\n\t\t    tileSize = this._tileSize = this.getTileSize(),\n\t\t    tileZoom = this._tileZoom;\n\n\t\tvar bounds = this._map.getPixelWorldBounds(this._tileZoom);\n\t\tif (bounds) {\n\t\t\tthis._globalTileRange = this._pxBoundsToTileRange(bounds);\n\t\t}\n\n\t\tthis._wrapX = crs.wrapLng && !this.options.noWrap && [\n\t\t\tMath.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize.x),\n\t\t\tMath.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize.y)\n\t\t];\n\t\tthis._wrapY = crs.wrapLat && !this.options.noWrap && [\n\t\t\tMath.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize.x),\n\t\t\tMath.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize.y)\n\t\t];\n\t},\n\n\t_onMoveEnd: function () {\n\t\tif (!this._map || this._map._animatingZoom) { return; }\n\n\t\tthis._update();\n\t},\n\n\t_getTiledPixelBounds: function (center) {\n\t\tvar map = this._map,\n\t\t    mapZoom = map._animatingZoom ? Math.max(map._animateToZoom, map.getZoom()) : map.getZoom(),\n\t\t    scale = map.getZoomScale(mapZoom, this._tileZoom),\n\t\t    pixelCenter = map.project(center, this._tileZoom).floor(),\n\t\t    halfSize = map.getSize().divideBy(scale * 2);\n\n\t\treturn new L.Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize));\n\t},\n\n\t// Private method to load tiles in the grid's active zoom level according to map bounds\n\t_update: function (center) {\n\t\tvar map = this._map;\n\t\tif (!map) { return; }\n\t\tvar zoom = map.getZoom();\n\n\t\tif (center === undefined) { center = map.getCenter(); }\n\t\tif (this._tileZoom === undefined) { return; }\t// if out of minzoom/maxzoom\n\n\t\tvar pixelBounds = this._getTiledPixelBounds(center),\n\t\t    tileRange = this._pxBoundsToTileRange(pixelBounds),\n\t\t    tileCenter = tileRange.getCenter(),\n\t\t    queue = [],\n\t\t    margin = this.options.keepBuffer,\n\t\t    noPruneRange = new L.Bounds(tileRange.getBottomLeft().subtract([margin, -margin]),\n\t\t                              tileRange.getTopRight().add([margin, -margin]));\n\n\t\tfor (var key in this._tiles) {\n\t\t\tvar c = this._tiles[key].coords;\n\t\t\tif (c.z !== this._tileZoom || !noPruneRange.contains(L.point(c.x, c.y))) {\n\t\t\t\tthis._tiles[key].current = false;\n\t\t\t}\n\t\t}\n\n\t\t// _update just loads more tiles. If the tile zoom level differs too much\n\t\t// from the map's, let _setView reset levels and prune old tiles.\n\t\tif (Math.abs(zoom - this._tileZoom) > 1) { this._setView(center, zoom); return; }\n\n\t\t// create a queue of coordinates to load tiles from\n\t\tfor (var j = tileRange.min.y; j <= tileRange.max.y; j++) {\n\t\t\tfor (var i = tileRange.min.x; i <= tileRange.max.x; i++) {\n\t\t\t\tvar coords = new L.Point(i, j);\n\t\t\t\tcoords.z = this._tileZoom;\n\n\t\t\t\tif (!this._isValidTile(coords)) { continue; }\n\n\t\t\t\tvar tile = this._tiles[this._tileCoordsToKey(coords)];\n\t\t\t\tif (tile) {\n\t\t\t\t\ttile.current = true;\n\t\t\t\t} else {\n\t\t\t\t\tqueue.push(coords);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// sort tile queue to load tiles in order of their distance to center\n\t\tqueue.sort(function (a, b) {\n\t\t\treturn a.distanceTo(tileCenter) - b.distanceTo(tileCenter);\n\t\t});\n\n\t\tif (queue.length !== 0) {\n\t\t\t// if it's the first batch of tiles to load\n\t\t\tif (!this._loading) {\n\t\t\t\tthis._loading = true;\n\t\t\t\t// @event loading: Event\n\t\t\t\t// Fired when the grid layer starts loading tiles.\n\t\t\t\tthis.fire('loading');\n\t\t\t}\n\n\t\t\t// create DOM fragment to append tiles in one batch\n\t\t\tvar fragment = document.createDocumentFragment();\n\n\t\t\tfor (i = 0; i < queue.length; i++) {\n\t\t\t\tthis._addTile(queue[i], fragment);\n\t\t\t}\n\n\t\t\tthis._level.el.appendChild(fragment);\n\t\t}\n\t},\n\n\t_isValidTile: function (coords) {\n\t\tvar crs = this._map.options.crs;\n\n\t\tif (!crs.infinite) {\n\t\t\t// don't load tile if it's out of bounds and not wrapped\n\t\t\tvar bounds = this._globalTileRange;\n\t\t\tif ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) ||\n\t\t\t    (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; }\n\t\t}\n\n\t\tif (!this.options.bounds) { return true; }\n\n\t\t// don't load tile if it doesn't intersect the bounds in options\n\t\tvar tileBounds = this._tileCoordsToBounds(coords);\n\t\treturn L.latLngBounds(this.options.bounds).overlaps(tileBounds);\n\t},\n\n\t_keyToBounds: function (key) {\n\t\treturn this._tileCoordsToBounds(this._keyToTileCoords(key));\n\t},\n\n\t// converts tile coordinates to its geographical bounds\n\t_tileCoordsToBounds: function (coords) {\n\n\t\tvar map = this._map,\n\t\t    tileSize = this.getTileSize(),\n\n\t\t    nwPoint = coords.scaleBy(tileSize),\n\t\t    sePoint = nwPoint.add(tileSize),\n\n\t\t    nw = map.unproject(nwPoint, coords.z),\n\t\t    se = map.unproject(sePoint, coords.z),\n\t\t    bounds = new L.LatLngBounds(nw, se);\n\n\t\tif (!this.options.noWrap) {\n\t\t\tmap.wrapLatLngBounds(bounds);\n\t\t}\n\n\t\treturn bounds;\n\t},\n\n\t// converts tile coordinates to key for the tile cache\n\t_tileCoordsToKey: function (coords) {\n\t\treturn coords.x + ':' + coords.y + ':' + coords.z;\n\t},\n\n\t// converts tile cache key to coordinates\n\t_keyToTileCoords: function (key) {\n\t\tvar k = key.split(':'),\n\t\t    coords = new L.Point(+k[0], +k[1]);\n\t\tcoords.z = +k[2];\n\t\treturn coords;\n\t},\n\n\t_removeTile: function (key) {\n\t\tvar tile = this._tiles[key];\n\t\tif (!tile) { return; }\n\n\t\tL.DomUtil.remove(tile.el);\n\n\t\tdelete this._tiles[key];\n\n\t\t// @event tileunload: TileEvent\n\t\t// Fired when a tile is removed (e.g. when a tile goes off the screen).\n\t\tthis.fire('tileunload', {\n\t\t\ttile: tile.el,\n\t\t\tcoords: this._keyToTileCoords(key)\n\t\t});\n\t},\n\n\t_initTile: function (tile) {\n\t\tL.DomUtil.addClass(tile, 'leaflet-tile');\n\n\t\tvar tileSize = this.getTileSize();\n\t\ttile.style.width = tileSize.x + 'px';\n\t\ttile.style.height = tileSize.y + 'px';\n\n\t\ttile.onselectstart = L.Util.falseFn;\n\t\ttile.onmousemove = L.Util.falseFn;\n\n\t\t// update opacity on tiles in IE7-8 because of filter inheritance problems\n\t\tif (L.Browser.ielt9 && this.options.opacity < 1) {\n\t\t\tL.DomUtil.setOpacity(tile, this.options.opacity);\n\t\t}\n\n\t\t// without this hack, tiles disappear after zoom on Chrome for Android\n\t\t// https://github.com/Leaflet/Leaflet/issues/2078\n\t\tif (L.Browser.android && !L.Browser.android23) {\n\t\t\ttile.style.WebkitBackfaceVisibility = 'hidden';\n\t\t}\n\t},\n\n\t_addTile: function (coords, container) {\n\t\tvar tilePos = this._getTilePos(coords),\n\t\t    key = this._tileCoordsToKey(coords);\n\n\t\tvar tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords));\n\n\t\tthis._initTile(tile);\n\n\t\t// if createTile is defined with a second argument (\"done\" callback),\n\t\t// we know that tile is async and will be ready later; otherwise\n\t\tif (this.createTile.length < 2) {\n\t\t\t// mark tile as ready, but delay one frame for opacity animation to happen\n\t\t\tL.Util.requestAnimFrame(L.bind(this._tileReady, this, coords, null, tile));\n\t\t}\n\n\t\tL.DomUtil.setPosition(tile, tilePos);\n\n\t\t// save tile in cache\n\t\tthis._tiles[key] = {\n\t\t\tel: tile,\n\t\t\tcoords: coords,\n\t\t\tcurrent: true\n\t\t};\n\n\t\tcontainer.appendChild(tile);\n\t\t// @event tileloadstart: TileEvent\n\t\t// Fired when a tile is requested and starts loading.\n\t\tthis.fire('tileloadstart', {\n\t\t\ttile: tile,\n\t\t\tcoords: coords\n\t\t});\n\t},\n\n\t_tileReady: function (coords, err, tile) {\n\t\tif (!this._map) { return; }\n\n\t\tif (err) {\n\t\t\t// @event tileerror: TileErrorEvent\n\t\t\t// Fired when there is an error loading a tile.\n\t\t\tthis.fire('tileerror', {\n\t\t\t\terror: err,\n\t\t\t\ttile: tile,\n\t\t\t\tcoords: coords\n\t\t\t});\n\t\t}\n\n\t\tvar key = this._tileCoordsToKey(coords);\n\n\t\ttile = this._tiles[key];\n\t\tif (!tile) { return; }\n\n\t\ttile.loaded = +new Date();\n\t\tif (this._map._fadeAnimated) {\n\t\t\tL.DomUtil.setOpacity(tile.el, 0);\n\t\t\tL.Util.cancelAnimFrame(this._fadeFrame);\n\t\t\tthis._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);\n\t\t} else {\n\t\t\ttile.active = true;\n\t\t\tthis._pruneTiles();\n\t\t}\n\n\t\tif (!err) {\n\t\t\tL.DomUtil.addClass(tile.el, 'leaflet-tile-loaded');\n\n\t\t\t// @event tileload: TileEvent\n\t\t\t// Fired when a tile loads.\n\t\t\tthis.fire('tileload', {\n\t\t\t\ttile: tile.el,\n\t\t\t\tcoords: coords\n\t\t\t});\n\t\t}\n\n\t\tif (this._noTilesToLoad()) {\n\t\t\tthis._loading = false;\n\t\t\t// @event load: Event\n\t\t\t// Fired when the grid layer loaded all visible tiles.\n\t\t\tthis.fire('load');\n\n\t\t\tif (L.Browser.ielt9 || !this._map._fadeAnimated) {\n\t\t\t\tL.Util.requestAnimFrame(this._pruneTiles, this);\n\t\t\t} else {\n\t\t\t\t// Wait a bit more than 0.2 secs (the duration of the tile fade-in)\n\t\t\t\t// to trigger a pruning.\n\t\t\t\tsetTimeout(L.bind(this._pruneTiles, this), 250);\n\t\t\t}\n\t\t}\n\t},\n\n\t_getTilePos: function (coords) {\n\t\treturn coords.scaleBy(this.getTileSize()).subtract(this._level.origin);\n\t},\n\n\t_wrapCoords: function (coords) {\n\t\tvar newCoords = new L.Point(\n\t\t\tthis._wrapX ? L.Util.wrapNum(coords.x, this._wrapX) : coords.x,\n\t\t\tthis._wrapY ? L.Util.wrapNum(coords.y, this._wrapY) : coords.y);\n\t\tnewCoords.z = coords.z;\n\t\treturn newCoords;\n\t},\n\n\t_pxBoundsToTileRange: function (bounds) {\n\t\tvar tileSize = this.getTileSize();\n\t\treturn new L.Bounds(\n\t\t\tbounds.min.unscaleBy(tileSize).floor(),\n\t\t\tbounds.max.unscaleBy(tileSize).ceil().subtract([1, 1]));\n\t},\n\n\t_noTilesToLoad: function () {\n\t\tfor (var key in this._tiles) {\n\t\t\tif (!this._tiles[key].loaded) { return false; }\n\t\t}\n\t\treturn true;\n\t}\n});\n\n// @factory L.gridLayer(options?: GridLayer options)\n// Creates a new instance of GridLayer with the supplied options.\nL.gridLayer = function (options) {\n\treturn new L.GridLayer(options);\n};\n\n\n\n/*\r\n * @class TileLayer\r\n * @inherits GridLayer\r\n * @aka L.TileLayer\r\n * Used to load and display tile layers on the map. Extends `GridLayer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png?{foo}', {foo: 'bar'}).addTo(map);\r\n * ```\r\n *\r\n * @section URL template\r\n * @example\r\n *\r\n * A string of the following form:\r\n *\r\n * ```\r\n * 'http://{s}.somedomain.com/blabla/{z}/{x}/{y}{r}.png'\r\n * ```\r\n *\r\n * `{s}` means one of the available subdomains (used sequentially to help with browser parallel requests per domain limitation; subdomain values are specified in options; `a`, `b` or `c` by default, can be omitted), `{z}` — zoom level, `{x}` and `{y}` — tile coordinates. `{r}` can be used to add @2x to the URL to load retina tiles.\r\n *\r\n * You can use custom keys in the template, which will be [evaluated](#util-template) from TileLayer options, like this:\r\n *\r\n * ```\r\n * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'});\r\n * ```\r\n */\r\n\r\n\r\nL.TileLayer = L.GridLayer.extend({\r\n\r\n\t// @section\r\n\t// @aka TileLayer options\r\n\toptions: {\r\n\t\t// @option minZoom: Number = 0\r\n\t\t// Minimum zoom number.\r\n\t\tminZoom: 0,\r\n\r\n\t\t// @option maxZoom: Number = 18\r\n\t\t// Maximum zoom number.\r\n\t\tmaxZoom: 18,\r\n\r\n\t\t// @option maxNativeZoom: Number = null\r\n\t\t// Maximum zoom number the tile source has available. If it is specified,\r\n\t\t// the tiles on all zoom levels higher than `maxNativeZoom` will be loaded\r\n\t\t// from `maxNativeZoom` level and auto-scaled.\r\n\t\tmaxNativeZoom: null,\r\n\r\n\t\t// @option minNativeZoom: Number = null\r\n\t\t// Minimum zoom number the tile source has available. If it is specified,\r\n\t\t// the tiles on all zoom levels lower than `minNativeZoom` will be loaded\r\n\t\t// from `minNativeZoom` level and auto-scaled.\r\n\t\tminNativeZoom: null,\r\n\r\n\t\t// @option subdomains: String|String[] = 'abc'\r\n\t\t// Subdomains of the tile service. Can be passed in the form of one string (where each letter is a subdomain name) or an array of strings.\r\n\t\tsubdomains: 'abc',\r\n\r\n\t\t// @option errorTileUrl: String = ''\r\n\t\t// URL to the tile image to show in place of the tile that failed to load.\r\n\t\terrorTileUrl: '',\r\n\r\n\t\t// @option zoomOffset: Number = 0\r\n\t\t// The zoom number used in tile URLs will be offset with this value.\r\n\t\tzoomOffset: 0,\r\n\r\n\t\t// @option tms: Boolean = false\r\n\t\t// If `true`, inverses Y axis numbering for tiles (turn this on for [TMS](https://en.wikipedia.org/wiki/Tile_Map_Service) services).\r\n\t\ttms: false,\r\n\r\n\t\t// @option zoomReverse: Boolean = false\r\n\t\t// If set to true, the zoom number used in tile URLs will be reversed (`maxZoom - zoom` instead of `zoom`)\r\n\t\tzoomReverse: false,\r\n\r\n\t\t// @option detectRetina: Boolean = false\r\n\t\t// If `true` and user is on a retina display, it will request four tiles of half the specified size and a bigger zoom level in place of one to utilize the high resolution.\r\n\t\tdetectRetina: false,\r\n\r\n\t\t// @option crossOrigin: Boolean = false\r\n\t\t// If true, all tiles will have their crossOrigin attribute set to ''. This is needed if you want to access tile pixel data.\r\n\t\tcrossOrigin: false\r\n\t},\r\n\r\n\tinitialize: function (url, options) {\r\n\r\n\t\tthis._url = url;\r\n\r\n\t\toptions = L.setOptions(this, options);\r\n\r\n\t\t// detecting retina displays, adjusting tileSize and zoom levels\r\n\t\tif (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {\r\n\r\n\t\t\toptions.tileSize = Math.floor(options.tileSize / 2);\r\n\r\n\t\t\tif (!options.zoomReverse) {\r\n\t\t\t\toptions.zoomOffset++;\r\n\t\t\t\toptions.maxZoom--;\r\n\t\t\t} else {\r\n\t\t\t\toptions.zoomOffset--;\r\n\t\t\t\toptions.minZoom++;\r\n\t\t\t}\r\n\r\n\t\t\toptions.minZoom = Math.max(0, options.minZoom);\r\n\t\t}\r\n\r\n\t\tif (typeof options.subdomains === 'string') {\r\n\t\t\toptions.subdomains = options.subdomains.split('');\r\n\t\t}\r\n\r\n\t\t// for https://github.com/Leaflet/Leaflet/issues/137\r\n\t\tif (!L.Browser.android) {\r\n\t\t\tthis.on('tileunload', this._onTileRemove);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method setUrl(url: String, noRedraw?: Boolean): this\r\n\t// Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`).\r\n\tsetUrl: function (url, noRedraw) {\r\n\t\tthis._url = url;\r\n\r\n\t\tif (!noRedraw) {\r\n\t\t\tthis.redraw();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method createTile(coords: Object, done?: Function): HTMLElement\r\n\t// Called only internally, overrides GridLayer's [`createTile()`](#gridlayer-createtile)\r\n\t// to return an `<img>` HTML element with the appropiate image URL given `coords`. The `done`\r\n\t// callback is called when the tile has been loaded.\r\n\tcreateTile: function (coords, done) {\r\n\t\tvar tile = document.createElement('img');\r\n\r\n\t\tL.DomEvent.on(tile, 'load', L.bind(this._tileOnLoad, this, done, tile));\r\n\t\tL.DomEvent.on(tile, 'error', L.bind(this._tileOnError, this, done, tile));\r\n\r\n\t\tif (this.options.crossOrigin) {\r\n\t\t\ttile.crossOrigin = '';\r\n\t\t}\r\n\r\n\t\t/*\r\n\t\t Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons\r\n\t\t http://www.w3.org/TR/WCAG20-TECHS/H67\r\n\t\t*/\r\n\t\ttile.alt = '';\r\n\r\n\t\t/*\r\n\t\t Set role=\"presentation\" to force screen readers to ignore this\r\n\t\t https://www.w3.org/TR/wai-aria/roles#textalternativecomputation\r\n\t\t*/\r\n\t\ttile.setAttribute('role', 'presentation');\r\n\r\n\t\ttile.src = this.getTileUrl(coords);\r\n\r\n\t\treturn tile;\r\n\t},\r\n\r\n\t// @section Extension methods\r\n\t// @uninheritable\r\n\t// Layers extending `TileLayer` might reimplement the following method.\r\n\t// @method getTileUrl(coords: Object): String\r\n\t// Called only internally, returns the URL for a tile given its coordinates.\r\n\t// Classes extending `TileLayer` can override this function to provide custom tile URL naming schemes.\r\n\tgetTileUrl: function (coords) {\r\n\t\tvar data = {\r\n\t\t\tr: L.Browser.retina ? '@2x' : '',\r\n\t\t\ts: this._getSubdomain(coords),\r\n\t\t\tx: coords.x,\r\n\t\t\ty: coords.y,\r\n\t\t\tz: this._getZoomForUrl()\r\n\t\t};\r\n\t\tif (this._map && !this._map.options.crs.infinite) {\r\n\t\t\tvar invertedY = this._globalTileRange.max.y - coords.y;\r\n\t\t\tif (this.options.tms) {\r\n\t\t\t\tdata['y'] = invertedY;\r\n\t\t\t}\r\n\t\t\tdata['-y'] = invertedY;\r\n\t\t}\r\n\r\n\t\treturn L.Util.template(this._url, L.extend(data, this.options));\r\n\t},\r\n\r\n\t_tileOnLoad: function (done, tile) {\r\n\t\t// For https://github.com/Leaflet/Leaflet/issues/3332\r\n\t\tif (L.Browser.ielt9) {\r\n\t\t\tsetTimeout(L.bind(done, this, null, tile), 0);\r\n\t\t} else {\r\n\t\t\tdone(null, tile);\r\n\t\t}\r\n\t},\r\n\r\n\t_tileOnError: function (done, tile, e) {\r\n\t\tvar errorUrl = this.options.errorTileUrl;\r\n\t\tif (errorUrl && tile.src !== errorUrl) {\r\n\t\t\ttile.src = errorUrl;\r\n\t\t}\r\n\t\tdone(e, tile);\r\n\t},\r\n\r\n\tgetTileSize: function () {\r\n\t\tvar map = this._map,\r\n\t\ttileSize = L.GridLayer.prototype.getTileSize.call(this),\r\n\t\tzoom = this._tileZoom + this.options.zoomOffset,\r\n\t\tminNativeZoom = this.options.minNativeZoom,\r\n\t\tmaxNativeZoom = this.options.maxNativeZoom;\r\n\r\n\t\t// decrease tile size when scaling below minNativeZoom\r\n\t\tif (minNativeZoom !== null && zoom < minNativeZoom) {\r\n\t\t\treturn tileSize.divideBy(map.getZoomScale(minNativeZoom, zoom)).round();\r\n\t\t}\r\n\r\n\t\t// increase tile size when scaling above maxNativeZoom\r\n\t\tif (maxNativeZoom !== null && zoom > maxNativeZoom) {\r\n\t\t\treturn tileSize.divideBy(map.getZoomScale(maxNativeZoom, zoom)).round();\r\n\t\t}\r\n\r\n\t\treturn tileSize;\r\n\t},\r\n\r\n\t_onTileRemove: function (e) {\r\n\t\te.tile.onload = null;\r\n\t},\r\n\r\n\t_getZoomForUrl: function () {\r\n\t\tvar zoom = this._tileZoom,\r\n\t\tmaxZoom = this.options.maxZoom,\r\n\t\tzoomReverse = this.options.zoomReverse,\r\n\t\tzoomOffset = this.options.zoomOffset,\r\n\t\tminNativeZoom = this.options.minNativeZoom,\r\n\t\tmaxNativeZoom = this.options.maxNativeZoom;\r\n\r\n\t\tif (zoomReverse) {\r\n\t\t\tzoom = maxZoom - zoom;\r\n\t\t}\r\n\r\n\t\tzoom += zoomOffset;\r\n\r\n\t\tif (minNativeZoom !== null && zoom < minNativeZoom) {\r\n\t\t\treturn minNativeZoom;\r\n\t\t}\r\n\r\n\t\tif (maxNativeZoom !== null && zoom > maxNativeZoom) {\r\n\t\t\treturn maxNativeZoom;\r\n\t\t}\r\n\r\n\t\treturn zoom;\r\n\t},\r\n\r\n\t_getSubdomain: function (tilePoint) {\r\n\t\tvar index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;\r\n\t\treturn this.options.subdomains[index];\r\n\t},\r\n\r\n\t// stops loading all tiles in the background layer\r\n\t_abortLoading: function () {\r\n\t\tvar i, tile;\r\n\t\tfor (i in this._tiles) {\r\n\t\t\tif (this._tiles[i].coords.z !== this._tileZoom) {\r\n\t\t\t\ttile = this._tiles[i].el;\r\n\r\n\t\t\t\ttile.onload = L.Util.falseFn;\r\n\t\t\t\ttile.onerror = L.Util.falseFn;\r\n\r\n\t\t\t\tif (!tile.complete) {\r\n\t\t\t\t\ttile.src = L.Util.emptyImageUrl;\r\n\t\t\t\t\tL.DomUtil.remove(tile);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.tilelayer(urlTemplate: String, options?: TileLayer options)\r\n// Instantiates a tile layer object given a `URL template` and optionally an options object.\r\n\r\nL.tileLayer = function (url, options) {\r\n\treturn new L.TileLayer(url, options);\r\n};\r\n\n\n\n/*\r\n * @class TileLayer.WMS\r\n * @inherits TileLayer\r\n * @aka L.TileLayer.WMS\r\n * Used to display [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services as tile layers on the map. Extends `TileLayer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var nexrad = L.tileLayer.wms(\"http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi\", {\r\n * \tlayers: 'nexrad-n0r-900913',\r\n * \tformat: 'image/png',\r\n * \ttransparent: true,\r\n * \tattribution: \"Weather data © 2012 IEM Nexrad\"\r\n * });\r\n * ```\r\n */\r\n\r\nL.TileLayer.WMS = L.TileLayer.extend({\r\n\r\n\t// @section\r\n\t// @aka TileLayer.WMS options\r\n\t// If any custom options not documented here are used, they will be sent to the\r\n\t// WMS server as extra parameters in each request URL. This can be useful for\r\n\t// [non-standard vendor WMS parameters](http://docs.geoserver.org/stable/en/user/services/wms/vendor.html).\r\n\tdefaultWmsParams: {\r\n\t\tservice: 'WMS',\r\n\t\trequest: 'GetMap',\r\n\r\n\t\t// @option layers: String = ''\r\n\t\t// **(required)** Comma-separated list of WMS layers to show.\r\n\t\tlayers: '',\r\n\r\n\t\t// @option styles: String = ''\r\n\t\t// Comma-separated list of WMS styles.\r\n\t\tstyles: '',\r\n\r\n\t\t// @option format: String = 'image/jpeg'\r\n\t\t// WMS image format (use `'image/png'` for layers with transparency).\r\n\t\tformat: 'image/jpeg',\r\n\r\n\t\t// @option transparent: Boolean = false\r\n\t\t// If `true`, the WMS service will return images with transparency.\r\n\t\ttransparent: false,\r\n\r\n\t\t// @option version: String = '1.1.1'\r\n\t\t// Version of the WMS service to use\r\n\t\tversion: '1.1.1'\r\n\t},\r\n\r\n\toptions: {\r\n\t\t// @option crs: CRS = null\r\n\t\t// Coordinate Reference System to use for the WMS requests, defaults to\r\n\t\t// map CRS. Don't change this if you're not sure what it means.\r\n\t\tcrs: null,\r\n\r\n\t\t// @option uppercase: Boolean = false\r\n\t\t// If `true`, WMS request parameter keys will be uppercase.\r\n\t\tuppercase: false\r\n\t},\r\n\r\n\tinitialize: function (url, options) {\r\n\r\n\t\tthis._url = url;\r\n\r\n\t\tvar wmsParams = L.extend({}, this.defaultWmsParams);\r\n\r\n\t\t// all keys that are not TileLayer options go to WMS params\r\n\t\tfor (var i in options) {\r\n\t\t\tif (!(i in this.options)) {\r\n\t\t\t\twmsParams[i] = options[i];\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\toptions = L.setOptions(this, options);\r\n\r\n\t\twmsParams.width = wmsParams.height = options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1);\r\n\r\n\t\tthis.wmsParams = wmsParams;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\r\n\t\tthis._crs = this.options.crs || map.options.crs;\r\n\t\tthis._wmsVersion = parseFloat(this.wmsParams.version);\r\n\r\n\t\tvar projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';\r\n\t\tthis.wmsParams[projectionKey] = this._crs.code;\r\n\r\n\t\tL.TileLayer.prototype.onAdd.call(this, map);\r\n\t},\r\n\r\n\tgetTileUrl: function (coords) {\r\n\r\n\t\tvar tileBounds = this._tileCoordsToBounds(coords),\r\n\t\t    nw = this._crs.project(tileBounds.getNorthWest()),\r\n\t\t    se = this._crs.project(tileBounds.getSouthEast()),\r\n\r\n\t\t    bbox = (this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?\r\n\t\t\t    [se.y, nw.x, nw.y, se.x] :\r\n\t\t\t    [nw.x, se.y, se.x, nw.y]).join(','),\r\n\r\n\t\t    url = L.TileLayer.prototype.getTileUrl.call(this, coords);\r\n\r\n\t\treturn url +\r\n\t\t\tL.Util.getParamString(this.wmsParams, url, this.options.uppercase) +\r\n\t\t\t(this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox;\r\n\t},\r\n\r\n\t// @method setParams(params: Object, noRedraw?: Boolean): this\r\n\t// Merges an object with the new parameters and re-requests tiles on the current screen (unless `noRedraw` was set to true).\r\n\tsetParams: function (params, noRedraw) {\r\n\r\n\t\tL.extend(this.wmsParams, params);\r\n\r\n\t\tif (!noRedraw) {\r\n\t\t\tthis.redraw();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.tileLayer.wms(baseUrl: String, options: TileLayer.WMS options)\r\n// Instantiates a WMS tile layer object given a base URL of the WMS service and a WMS parameters/options object.\r\nL.tileLayer.wms = function (url, options) {\r\n\treturn new L.TileLayer.WMS(url, options);\r\n};\r\n\n\n\n/*\r\n * @class ImageOverlay\r\n * @aka L.ImageOverlay\r\n * @inherits Interactive layer\r\n *\r\n * Used to load and display a single image over specific bounds of the map. Extends `Layer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg',\r\n * \timageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]];\r\n * L.imageOverlay(imageUrl, imageBounds).addTo(map);\r\n * ```\r\n */\r\n\r\nL.ImageOverlay = L.Layer.extend({\r\n\r\n\t// @section\r\n\t// @aka ImageOverlay options\r\n\toptions: {\r\n\t\t// @option opacity: Number = 1.0\r\n\t\t// The opacity of the image overlay.\r\n\t\topacity: 1,\r\n\r\n\t\t// @option alt: String = ''\r\n\t\t// Text for the `alt` attribute of the image (useful for accessibility).\r\n\t\talt: '',\r\n\r\n\t\t// @option interactive: Boolean = false\r\n\t\t// If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered.\r\n\t\tinteractive: false,\r\n\r\n\t\t// @option crossOrigin: Boolean = false\r\n\t\t// If true, the image will have its crossOrigin attribute set to ''. This is needed if you want to access image pixel data.\r\n\t\tcrossOrigin: false\r\n\t},\r\n\r\n\tinitialize: function (url, bounds, options) { // (String, LatLngBounds, Object)\r\n\t\tthis._url = url;\r\n\t\tthis._bounds = L.latLngBounds(bounds);\r\n\r\n\t\tL.setOptions(this, options);\r\n\t},\r\n\r\n\tonAdd: function () {\r\n\t\tif (!this._image) {\r\n\t\t\tthis._initImage();\r\n\r\n\t\t\tif (this.options.opacity < 1) {\r\n\t\t\t\tthis._updateOpacity();\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (this.options.interactive) {\r\n\t\t\tL.DomUtil.addClass(this._image, 'leaflet-interactive');\r\n\t\t\tthis.addInteractiveTarget(this._image);\r\n\t\t}\r\n\r\n\t\tthis.getPane().appendChild(this._image);\r\n\t\tthis._reset();\r\n\t},\r\n\r\n\tonRemove: function () {\r\n\t\tL.DomUtil.remove(this._image);\r\n\t\tif (this.options.interactive) {\r\n\t\t\tthis.removeInteractiveTarget(this._image);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method setOpacity(opacity: Number): this\r\n\t// Sets the opacity of the overlay.\r\n\tsetOpacity: function (opacity) {\r\n\t\tthis.options.opacity = opacity;\r\n\r\n\t\tif (this._image) {\r\n\t\t\tthis._updateOpacity();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\tsetStyle: function (styleOpts) {\r\n\t\tif (styleOpts.opacity) {\r\n\t\t\tthis.setOpacity(styleOpts.opacity);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method bringToFront(): this\r\n\t// Brings the layer to the top of all overlays.\r\n\tbringToFront: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toFront(this._image);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method bringToBack(): this\r\n\t// Brings the layer to the bottom of all overlays.\r\n\tbringToBack: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toBack(this._image);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setUrl(url: String): this\r\n\t// Changes the URL of the image.\r\n\tsetUrl: function (url) {\r\n\t\tthis._url = url;\r\n\r\n\t\tif (this._image) {\r\n\t\t\tthis._image.src = url;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setBounds(bounds: LatLngBounds): this\r\n\t// Update the bounds that this ImageOverlay covers\r\n\tsetBounds: function (bounds) {\r\n\t\tthis._bounds = bounds;\r\n\r\n\t\tif (this._map) {\r\n\t\t\tthis._reset();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\tvar events = {\r\n\t\t\tzoom: this._reset,\r\n\t\t\tviewreset: this._reset\r\n\t\t};\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tevents.zoomanim = this._animateZoom;\r\n\t\t}\r\n\r\n\t\treturn events;\r\n\t},\r\n\r\n\t// @method getBounds(): LatLngBounds\r\n\t// Get the bounds that this ImageOverlay covers\r\n\tgetBounds: function () {\r\n\t\treturn this._bounds;\r\n\t},\r\n\r\n\t// @method getElement(): HTMLElement\r\n\t// Get the img element that represents the ImageOverlay on the map\r\n\tgetElement: function () {\r\n\t\treturn this._image;\r\n\t},\r\n\r\n\t_initImage: function () {\r\n\t\tvar img = this._image = L.DomUtil.create('img',\r\n\t\t\t\t'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : ''));\r\n\r\n\t\timg.onselectstart = L.Util.falseFn;\r\n\t\timg.onmousemove = L.Util.falseFn;\r\n\r\n\t\timg.onload = L.bind(this.fire, this, 'load');\r\n\r\n\t\tif (this.options.crossOrigin) {\r\n\t\t\timg.crossOrigin = '';\r\n\t\t}\r\n\r\n\t\timg.src = this._url;\r\n\t\timg.alt = this.options.alt;\r\n\t},\r\n\r\n\t_animateZoom: function (e) {\r\n\t\tvar scale = this._map.getZoomScale(e.zoom),\r\n\t\t    offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min;\r\n\r\n\t\tL.DomUtil.setTransform(this._image, offset, scale);\r\n\t},\r\n\r\n\t_reset: function () {\r\n\t\tvar image = this._image,\r\n\t\t    bounds = new L.Bounds(\r\n\t\t        this._map.latLngToLayerPoint(this._bounds.getNorthWest()),\r\n\t\t        this._map.latLngToLayerPoint(this._bounds.getSouthEast())),\r\n\t\t    size = bounds.getSize();\r\n\r\n\t\tL.DomUtil.setPosition(image, bounds.min);\r\n\r\n\t\timage.style.width  = size.x + 'px';\r\n\t\timage.style.height = size.y + 'px';\r\n\t},\r\n\r\n\t_updateOpacity: function () {\r\n\t\tL.DomUtil.setOpacity(this._image, this.options.opacity);\r\n\t}\r\n});\r\n\r\n// @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options)\r\n// Instantiates an image overlay object given the URL of the image and the\r\n// geographical bounds it is tied to.\r\nL.imageOverlay = function (url, bounds, options) {\r\n\treturn new L.ImageOverlay(url, bounds, options);\r\n};\r\n\n\n\n/*\r\n * @class Icon\r\n * @aka L.Icon\r\n * @inherits Layer\r\n *\r\n * Represents an icon to provide when creating a marker.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var myIcon = L.icon({\r\n *     iconUrl: 'my-icon.png',\r\n *     iconRetinaUrl: 'my-icon@2x.png',\r\n *     iconSize: [38, 95],\r\n *     iconAnchor: [22, 94],\r\n *     popupAnchor: [-3, -76],\r\n *     shadowUrl: 'my-icon-shadow.png',\r\n *     shadowRetinaUrl: 'my-icon-shadow@2x.png',\r\n *     shadowSize: [68, 95],\r\n *     shadowAnchor: [22, 94]\r\n * });\r\n *\r\n * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);\r\n * ```\r\n *\r\n * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default.\r\n *\r\n */\r\n\r\nL.Icon = L.Class.extend({\r\n\r\n\t/* @section\r\n\t * @aka Icon options\r\n\t *\r\n\t * @option iconUrl: String = null\r\n\t * **(required)** The URL to the icon image (absolute or relative to your script path).\r\n\t *\r\n\t * @option iconRetinaUrl: String = null\r\n\t * The URL to a retina sized version of the icon image (absolute or relative to your\r\n\t * script path). Used for Retina screen devices.\r\n\t *\r\n\t * @option iconSize: Point = null\r\n\t * Size of the icon image in pixels.\r\n\t *\r\n\t * @option iconAnchor: Point = null\r\n\t * The coordinates of the \"tip\" of the icon (relative to its top left corner). The icon\r\n\t * will be aligned so that this point is at the marker's geographical location. Centered\r\n\t * by default if size is specified, also can be set in CSS with negative margins.\r\n\t *\r\n\t * @option popupAnchor: Point = null\r\n\t * The coordinates of the point from which popups will \"open\", relative to the icon anchor.\r\n\t *\r\n\t * @option shadowUrl: String = null\r\n\t * The URL to the icon shadow image. If not specified, no shadow image will be created.\r\n\t *\r\n\t * @option shadowRetinaUrl: String = null\r\n\t *\r\n\t * @option shadowSize: Point = null\r\n\t * Size of the shadow image in pixels.\r\n\t *\r\n\t * @option shadowAnchor: Point = null\r\n\t * The coordinates of the \"tip\" of the shadow (relative to its top left corner) (the same\r\n\t * as iconAnchor if not specified).\r\n\t *\r\n\t * @option className: String = ''\r\n\t * A custom class name to assign to both icon and shadow images. Empty by default.\r\n\t */\r\n\r\n\tinitialize: function (options) {\r\n\t\tL.setOptions(this, options);\r\n\t},\r\n\r\n\t// @method createIcon(oldIcon?: HTMLElement): HTMLElement\r\n\t// Called internally when the icon has to be shown, returns a `<img>` HTML element\r\n\t// styled according to the options.\r\n\tcreateIcon: function (oldIcon) {\r\n\t\treturn this._createIcon('icon', oldIcon);\r\n\t},\r\n\r\n\t// @method createShadow(oldIcon?: HTMLElement): HTMLElement\r\n\t// As `createIcon`, but for the shadow beneath it.\r\n\tcreateShadow: function (oldIcon) {\r\n\t\treturn this._createIcon('shadow', oldIcon);\r\n\t},\r\n\r\n\t_createIcon: function (name, oldIcon) {\r\n\t\tvar src = this._getIconUrl(name);\r\n\r\n\t\tif (!src) {\r\n\t\t\tif (name === 'icon') {\r\n\t\t\t\tthrow new Error('iconUrl not set in Icon options (see the docs).');\r\n\t\t\t}\r\n\t\t\treturn null;\r\n\t\t}\r\n\r\n\t\tvar img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);\r\n\t\tthis._setIconStyles(img, name);\r\n\r\n\t\treturn img;\r\n\t},\r\n\r\n\t_setIconStyles: function (img, name) {\r\n\t\tvar options = this.options;\r\n\t\tvar sizeOption = options[name + 'Size'];\r\n\r\n\t\tif (typeof sizeOption === 'number') {\r\n\t\t\tsizeOption = [sizeOption, sizeOption];\r\n\t\t}\r\n\r\n\t\tvar size = L.point(sizeOption),\r\n\t\t    anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||\r\n\t\t            size && size.divideBy(2, true));\r\n\r\n\t\timg.className = 'leaflet-marker-' + name + ' ' + (options.className || '');\r\n\r\n\t\tif (anchor) {\r\n\t\t\timg.style.marginLeft = (-anchor.x) + 'px';\r\n\t\t\timg.style.marginTop  = (-anchor.y) + 'px';\r\n\t\t}\r\n\r\n\t\tif (size) {\r\n\t\t\timg.style.width  = size.x + 'px';\r\n\t\t\timg.style.height = size.y + 'px';\r\n\t\t}\r\n\t},\r\n\r\n\t_createImg: function (src, el) {\r\n\t\tel = el || document.createElement('img');\r\n\t\tel.src = src;\r\n\t\treturn el;\r\n\t},\r\n\r\n\t_getIconUrl: function (name) {\r\n\t\treturn L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.icon(options: Icon options)\r\n// Creates an icon instance with the given options.\r\nL.icon = function (options) {\r\n\treturn new L.Icon(options);\r\n};\r\n\n\n\n/*\n * @miniclass Icon.Default (Icon)\n * @aka L.Icon.Default\n * @section\n *\n * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when\n * no icon is specified. Points to the blue marker image distributed with Leaflet\n * releases.\n *\n * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options`\n * (which is a set of `Icon options`).\n *\n * If you want to _completely_ replace the default icon, override the\n * `L.Marker.prototype.options.icon` with your own icon instead.\n */\n\nL.Icon.Default = L.Icon.extend({\n\n\toptions: {\n\t\ticonUrl:       'marker-icon.png',\n\t\ticonRetinaUrl: 'marker-icon-2x.png',\n\t\tshadowUrl:     'marker-shadow.png',\n\t\ticonSize:    [25, 41],\n\t\ticonAnchor:  [12, 41],\n\t\tpopupAnchor: [1, -34],\n\t\ttooltipAnchor: [16, -28],\n\t\tshadowSize:  [41, 41]\n\t},\n\n\t_getIconUrl: function (name) {\n\t\tif (!L.Icon.Default.imagePath) {\t// Deprecated, backwards-compatibility only\n\t\t\tL.Icon.Default.imagePath = this._detectIconPath();\n\t\t}\n\n\t\t// @option imagePath: String\n\t\t// `L.Icon.Default` will try to auto-detect the absolute location of the\n\t\t// blue icon images. If you are placing these images in a non-standard\n\t\t// way, set this option to point to the right absolute path.\n\t\treturn (this.options.imagePath || L.Icon.Default.imagePath) + L.Icon.prototype._getIconUrl.call(this, name);\n\t},\n\n\t_detectIconPath: function () {\n\t\tvar el = L.DomUtil.create('div',  'leaflet-default-icon-path', document.body);\n\t\tvar path = L.DomUtil.getStyle(el, 'background-image') ||\n\t\t           L.DomUtil.getStyle(el, 'backgroundImage');\t// IE8\n\n\t\tdocument.body.removeChild(el);\n\n\t\treturn path.indexOf('url') === 0 ?\n\t\t\tpath.replace(/^url\\([\\\"\\']?/, '').replace(/marker-icon\\.png[\\\"\\']?\\)$/, '') : '';\n\t}\n});\n\n\n\n/*\r\n * @class Marker\r\n * @inherits Interactive layer\r\n * @aka L.Marker\r\n * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.marker([50.5, 30.5]).addTo(map);\r\n * ```\r\n */\r\n\r\nL.Marker = L.Layer.extend({\r\n\r\n\t// @section\r\n\t// @aka Marker options\r\n\toptions: {\r\n\t\t// @option icon: Icon = *\r\n\t\t// Icon class to use for rendering the marker. See [Icon documentation](#L.Icon) for details on how to customize the marker icon. If not specified, a new `L.Icon.Default` is used.\r\n\t\ticon: new L.Icon.Default(),\r\n\r\n\t\t// Option inherited from \"Interactive layer\" abstract class\r\n\t\tinteractive: true,\r\n\r\n\t\t// @option draggable: Boolean = false\r\n\t\t// Whether the marker is draggable with mouse/touch or not.\r\n\t\tdraggable: false,\r\n\r\n\t\t// @option keyboard: Boolean = true\r\n\t\t// Whether the marker can be tabbed to with a keyboard and clicked by pressing enter.\r\n\t\tkeyboard: true,\r\n\r\n\t\t// @option title: String = ''\r\n\t\t// Text for the browser tooltip that appear on marker hover (no tooltip by default).\r\n\t\ttitle: '',\r\n\r\n\t\t// @option alt: String = ''\r\n\t\t// Text for the `alt` attribute of the icon image (useful for accessibility).\r\n\t\talt: '',\r\n\r\n\t\t// @option zIndexOffset: Number = 0\r\n\t\t// By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively).\r\n\t\tzIndexOffset: 0,\r\n\r\n\t\t// @option opacity: Number = 1.0\r\n\t\t// The opacity of the marker.\r\n\t\topacity: 1,\r\n\r\n\t\t// @option riseOnHover: Boolean = false\r\n\t\t// If `true`, the marker will get on top of others when you hover the mouse over it.\r\n\t\triseOnHover: false,\r\n\r\n\t\t// @option riseOffset: Number = 250\r\n\t\t// The z-index offset used for the `riseOnHover` feature.\r\n\t\triseOffset: 250,\r\n\r\n\t\t// @option pane: String = 'markerPane'\r\n\t\t// `Map pane` where the markers icon will be added.\r\n\t\tpane: 'markerPane',\r\n\r\n\t\t// FIXME: shadowPane is no longer a valid option\r\n\t\tnonBubblingEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu']\r\n\t},\r\n\r\n\t/* @section\r\n\t *\r\n\t * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods:\r\n\t */\r\n\r\n\tinitialize: function (latlng, options) {\r\n\t\tL.setOptions(this, options);\r\n\t\tthis._latlng = L.latLng(latlng);\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tthis._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tmap.on('zoomanim', this._animateZoom, this);\r\n\t\t}\r\n\r\n\t\tthis._initIcon();\r\n\t\tthis.update();\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tif (this.dragging && this.dragging.enabled()) {\r\n\t\t\tthis.options.draggable = true;\r\n\t\t\tthis.dragging.removeHooks();\r\n\t\t}\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tmap.off('zoomanim', this._animateZoom, this);\r\n\t\t}\r\n\r\n\t\tthis._removeIcon();\r\n\t\tthis._removeShadow();\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\treturn {\r\n\t\t\tzoom: this.update,\r\n\t\t\tviewreset: this.update\r\n\t\t};\r\n\t},\r\n\r\n\t// @method getLatLng: LatLng\r\n\t// Returns the current geographical position of the marker.\r\n\tgetLatLng: function () {\r\n\t\treturn this._latlng;\r\n\t},\r\n\r\n\t// @method setLatLng(latlng: LatLng): this\r\n\t// Changes the marker position to the given point.\r\n\tsetLatLng: function (latlng) {\r\n\t\tvar oldLatLng = this._latlng;\r\n\t\tthis._latlng = L.latLng(latlng);\r\n\t\tthis.update();\r\n\r\n\t\t// @event move: Event\r\n\t\t// Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`.\r\n\t\treturn this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng});\r\n\t},\r\n\r\n\t// @method setZIndexOffset(offset: Number): this\r\n\t// Changes the [zIndex offset](#marker-zindexoffset) of the marker.\r\n\tsetZIndexOffset: function (offset) {\r\n\t\tthis.options.zIndexOffset = offset;\r\n\t\treturn this.update();\r\n\t},\r\n\r\n\t// @method setIcon(icon: Icon): this\r\n\t// Changes the marker icon.\r\n\tsetIcon: function (icon) {\r\n\r\n\t\tthis.options.icon = icon;\r\n\r\n\t\tif (this._map) {\r\n\t\t\tthis._initIcon();\r\n\t\t\tthis.update();\r\n\t\t}\r\n\r\n\t\tif (this._popup) {\r\n\t\t\tthis.bindPopup(this._popup, this._popup.options);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\tgetElement: function () {\r\n\t\treturn this._icon;\r\n\t},\r\n\r\n\tupdate: function () {\r\n\r\n\t\tif (this._icon) {\r\n\t\t\tvar pos = this._map.latLngToLayerPoint(this._latlng).round();\r\n\t\t\tthis._setPos(pos);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_initIcon: function () {\r\n\t\tvar options = this.options,\r\n\t\t    classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');\r\n\r\n\t\tvar icon = options.icon.createIcon(this._icon),\r\n\t\t    addIcon = false;\r\n\r\n\t\t// if we're not reusing the icon, remove the old one and init new one\r\n\t\tif (icon !== this._icon) {\r\n\t\t\tif (this._icon) {\r\n\t\t\t\tthis._removeIcon();\r\n\t\t\t}\r\n\t\t\taddIcon = true;\r\n\r\n\t\t\tif (options.title) {\r\n\t\t\t\ticon.title = options.title;\r\n\t\t\t}\r\n\t\t\tif (options.alt) {\r\n\t\t\t\ticon.alt = options.alt;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tL.DomUtil.addClass(icon, classToAdd);\r\n\r\n\t\tif (options.keyboard) {\r\n\t\t\ticon.tabIndex = '0';\r\n\t\t}\r\n\r\n\t\tthis._icon = icon;\r\n\r\n\t\tif (options.riseOnHover) {\r\n\t\t\tthis.on({\r\n\t\t\t\tmouseover: this._bringToFront,\r\n\t\t\t\tmouseout: this._resetZIndex\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tvar newShadow = options.icon.createShadow(this._shadow),\r\n\t\t    addShadow = false;\r\n\r\n\t\tif (newShadow !== this._shadow) {\r\n\t\t\tthis._removeShadow();\r\n\t\t\taddShadow = true;\r\n\t\t}\r\n\r\n\t\tif (newShadow) {\r\n\t\t\tL.DomUtil.addClass(newShadow, classToAdd);\r\n\t\t\tnewShadow.alt = '';\r\n\t\t}\r\n\t\tthis._shadow = newShadow;\r\n\r\n\r\n\t\tif (options.opacity < 1) {\r\n\t\t\tthis._updateOpacity();\r\n\t\t}\r\n\r\n\r\n\t\tif (addIcon) {\r\n\t\t\tthis.getPane().appendChild(this._icon);\r\n\t\t}\r\n\t\tthis._initInteraction();\r\n\t\tif (newShadow && addShadow) {\r\n\t\t\tthis.getPane('shadowPane').appendChild(this._shadow);\r\n\t\t}\r\n\t},\r\n\r\n\t_removeIcon: function () {\r\n\t\tif (this.options.riseOnHover) {\r\n\t\t\tthis.off({\r\n\t\t\t\tmouseover: this._bringToFront,\r\n\t\t\t\tmouseout: this._resetZIndex\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tL.DomUtil.remove(this._icon);\r\n\t\tthis.removeInteractiveTarget(this._icon);\r\n\r\n\t\tthis._icon = null;\r\n\t},\r\n\r\n\t_removeShadow: function () {\r\n\t\tif (this._shadow) {\r\n\t\t\tL.DomUtil.remove(this._shadow);\r\n\t\t}\r\n\t\tthis._shadow = null;\r\n\t},\r\n\r\n\t_setPos: function (pos) {\r\n\t\tL.DomUtil.setPosition(this._icon, pos);\r\n\r\n\t\tif (this._shadow) {\r\n\t\t\tL.DomUtil.setPosition(this._shadow, pos);\r\n\t\t}\r\n\r\n\t\tthis._zIndex = pos.y + this.options.zIndexOffset;\r\n\r\n\t\tthis._resetZIndex();\r\n\t},\r\n\r\n\t_updateZIndex: function (offset) {\r\n\t\tthis._icon.style.zIndex = this._zIndex + offset;\r\n\t},\r\n\r\n\t_animateZoom: function (opt) {\r\n\t\tvar pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();\r\n\r\n\t\tthis._setPos(pos);\r\n\t},\r\n\r\n\t_initInteraction: function () {\r\n\r\n\t\tif (!this.options.interactive) { return; }\r\n\r\n\t\tL.DomUtil.addClass(this._icon, 'leaflet-interactive');\r\n\r\n\t\tthis.addInteractiveTarget(this._icon);\r\n\r\n\t\tif (L.Handler.MarkerDrag) {\r\n\t\t\tvar draggable = this.options.draggable;\r\n\t\t\tif (this.dragging) {\r\n\t\t\t\tdraggable = this.dragging.enabled();\r\n\t\t\t\tthis.dragging.disable();\r\n\t\t\t}\r\n\r\n\t\t\tthis.dragging = new L.Handler.MarkerDrag(this);\r\n\r\n\t\t\tif (draggable) {\r\n\t\t\t\tthis.dragging.enable();\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t// @method setOpacity(opacity: Number): this\r\n\t// Changes the opacity of the marker.\r\n\tsetOpacity: function (opacity) {\r\n\t\tthis.options.opacity = opacity;\r\n\t\tif (this._map) {\r\n\t\t\tthis._updateOpacity();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_updateOpacity: function () {\r\n\t\tvar opacity = this.options.opacity;\r\n\r\n\t\tL.DomUtil.setOpacity(this._icon, opacity);\r\n\r\n\t\tif (this._shadow) {\r\n\t\t\tL.DomUtil.setOpacity(this._shadow, opacity);\r\n\t\t}\r\n\t},\r\n\r\n\t_bringToFront: function () {\r\n\t\tthis._updateZIndex(this.options.riseOffset);\r\n\t},\r\n\r\n\t_resetZIndex: function () {\r\n\t\tthis._updateZIndex(0);\r\n\t},\r\n\r\n\t_getPopupAnchor: function () {\r\n\t\treturn this.options.icon.options.popupAnchor || [0, 0];\r\n\t},\r\n\r\n\t_getTooltipAnchor: function () {\r\n\t\treturn this.options.icon.options.tooltipAnchor || [0, 0];\r\n\t}\r\n});\r\n\r\n\r\n// factory L.marker(latlng: LatLng, options? : Marker options)\r\n\r\n// @factory L.marker(latlng: LatLng, options? : Marker options)\r\n// Instantiates a Marker object given a geographical point and optionally an options object.\r\nL.marker = function (latlng, options) {\r\n\treturn new L.Marker(latlng, options);\r\n};\r\n\n\n\n/*\n * @class DivIcon\n * @aka L.DivIcon\n * @inherits Icon\n *\n * Represents a lightweight icon for markers that uses a simple `<div>`\n * element instead of an image. Inherits from `Icon` but ignores the `iconUrl` and shadow options.\n *\n * @example\n * ```js\n * var myIcon = L.divIcon({className: 'my-div-icon'});\n * // you can set .my-div-icon styles in CSS\n *\n * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);\n * ```\n *\n * By default, it has a 'leaflet-div-icon' CSS class and is styled as a little white square with a shadow.\n */\n\nL.DivIcon = L.Icon.extend({\n\toptions: {\n\t\t// @section\n\t\t// @aka DivIcon options\n\t\ticonSize: [12, 12], // also can be set through CSS\n\n\t\t// iconAnchor: (Point),\n\t\t// popupAnchor: (Point),\n\n\t\t// @option html: String = ''\n\t\t// Custom HTML code to put inside the div element, empty by default.\n\t\thtml: false,\n\n\t\t// @option bgPos: Point = [0, 0]\n\t\t// Optional relative position of the background, in pixels\n\t\tbgPos: null,\n\n\t\tclassName: 'leaflet-div-icon'\n\t},\n\n\tcreateIcon: function (oldIcon) {\n\t\tvar div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),\n\t\t    options = this.options;\n\n\t\tdiv.innerHTML = options.html !== false ? options.html : '';\n\n\t\tif (options.bgPos) {\n\t\t\tvar bgPos = L.point(options.bgPos);\n\t\t\tdiv.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px';\n\t\t}\n\t\tthis._setIconStyles(div, 'icon');\n\n\t\treturn div;\n\t},\n\n\tcreateShadow: function () {\n\t\treturn null;\n\t}\n});\n\n// @factory L.divIcon(options: DivIcon options)\n// Creates a `DivIcon` instance with the given options.\nL.divIcon = function (options) {\n\treturn new L.DivIcon(options);\n};\n\n\n\n/*\r\n * @class DivOverlay\r\n * @inherits Layer\r\n * @aka L.DivOverlay\r\n * Base model for L.Popup and L.Tooltip. Inherit from it for custom popup like plugins.\r\n */\r\n\r\n// @namespace DivOverlay\r\nL.DivOverlay = L.Layer.extend({\r\n\r\n\t// @section\r\n\t// @aka DivOverlay options\r\n\toptions: {\r\n\t\t// @option offset: Point = Point(0, 7)\r\n\t\t// The offset of the popup position. Useful to control the anchor\r\n\t\t// of the popup when opening it on some overlays.\r\n\t\toffset: [0, 7],\r\n\r\n\t\t// @option className: String = ''\r\n\t\t// A custom CSS class name to assign to the popup.\r\n\t\tclassName: '',\r\n\r\n\t\t// @option pane: String = 'popupPane'\r\n\t\t// `Map pane` where the popup will be added.\r\n\t\tpane: 'popupPane'\r\n\t},\r\n\r\n\tinitialize: function (options, source) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._source = source;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tthis._zoomAnimated = map._zoomAnimated;\r\n\r\n\t\tif (!this._container) {\r\n\t\t\tthis._initLayout();\r\n\t\t}\r\n\r\n\t\tif (map._fadeAnimated) {\r\n\t\t\tL.DomUtil.setOpacity(this._container, 0);\r\n\t\t}\r\n\r\n\t\tclearTimeout(this._removeTimeout);\r\n\t\tthis.getPane().appendChild(this._container);\r\n\t\tthis.update();\r\n\r\n\t\tif (map._fadeAnimated) {\r\n\t\t\tL.DomUtil.setOpacity(this._container, 1);\r\n\t\t}\r\n\r\n\t\tthis.bringToFront();\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tif (map._fadeAnimated) {\r\n\t\t\tL.DomUtil.setOpacity(this._container, 0);\r\n\t\t\tthis._removeTimeout = setTimeout(L.bind(L.DomUtil.remove, L.DomUtil, this._container), 200);\r\n\t\t} else {\r\n\t\t\tL.DomUtil.remove(this._container);\r\n\t\t}\r\n\t},\r\n\r\n\t// @namespace Popup\r\n\t// @method getLatLng: LatLng\r\n\t// Returns the geographical point of popup.\r\n\tgetLatLng: function () {\r\n\t\treturn this._latlng;\r\n\t},\r\n\r\n\t// @method setLatLng(latlng: LatLng): this\r\n\t// Sets the geographical point where the popup will open.\r\n\tsetLatLng: function (latlng) {\r\n\t\tthis._latlng = L.latLng(latlng);\r\n\t\tif (this._map) {\r\n\t\t\tthis._updatePosition();\r\n\t\t\tthis._adjustPan();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getContent: String|HTMLElement\r\n\t// Returns the content of the popup.\r\n\tgetContent: function () {\r\n\t\treturn this._content;\r\n\t},\r\n\r\n\t// @method setContent(htmlContent: String|HTMLElement|Function): this\r\n\t// Sets the HTML content of the popup. If a function is passed the source layer will be passed to the function. The function should return a `String` or `HTMLElement` to be used in the popup.\r\n\tsetContent: function (content) {\r\n\t\tthis._content = content;\r\n\t\tthis.update();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getElement: String|HTMLElement\r\n\t// Alias for [getContent()](#popup-getcontent)\r\n\tgetElement: function () {\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\t// @method update: null\r\n\t// Updates the popup content, layout and position. Useful for updating the popup after something inside changed, e.g. image loaded.\r\n\tupdate: function () {\r\n\t\tif (!this._map) { return; }\r\n\r\n\t\tthis._container.style.visibility = 'hidden';\r\n\r\n\t\tthis._updateContent();\r\n\t\tthis._updateLayout();\r\n\t\tthis._updatePosition();\r\n\r\n\t\tthis._container.style.visibility = '';\r\n\r\n\t\tthis._adjustPan();\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\tvar events = {\r\n\t\t\tzoom: this._updatePosition,\r\n\t\t\tviewreset: this._updatePosition\r\n\t\t};\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tevents.zoomanim = this._animateZoom;\r\n\t\t}\r\n\t\treturn events;\r\n\t},\r\n\r\n\t// @method isOpen: Boolean\r\n\t// Returns `true` when the popup is visible on the map.\r\n\tisOpen: function () {\r\n\t\treturn !!this._map && this._map.hasLayer(this);\r\n\t},\r\n\r\n\t// @method bringToFront: this\r\n\t// Brings this popup in front of other popups (in the same map pane).\r\n\tbringToFront: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toFront(this._container);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method bringToBack: this\r\n\t// Brings this popup to the back of other popups (in the same map pane).\r\n\tbringToBack: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toBack(this._container);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_updateContent: function () {\r\n\t\tif (!this._content) { return; }\r\n\r\n\t\tvar node = this._contentNode;\r\n\t\tvar content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content;\r\n\r\n\t\tif (typeof content === 'string') {\r\n\t\t\tnode.innerHTML = content;\r\n\t\t} else {\r\n\t\t\twhile (node.hasChildNodes()) {\r\n\t\t\t\tnode.removeChild(node.firstChild);\r\n\t\t\t}\r\n\t\t\tnode.appendChild(content);\r\n\t\t}\r\n\t\tthis.fire('contentupdate');\r\n\t},\r\n\r\n\t_updatePosition: function () {\r\n\t\tif (!this._map) { return; }\r\n\r\n\t\tvar pos = this._map.latLngToLayerPoint(this._latlng),\r\n\t\t    offset = L.point(this.options.offset),\r\n\t\t    anchor = this._getAnchor();\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tL.DomUtil.setPosition(this._container, pos.add(anchor));\r\n\t\t} else {\r\n\t\t\toffset = offset.add(pos).add(anchor);\r\n\t\t}\r\n\r\n\t\tvar bottom = this._containerBottom = -offset.y,\r\n\t\t    left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x;\r\n\r\n\t\t// bottom position the popup in case the height of the popup changes (images loading etc)\r\n\t\tthis._container.style.bottom = bottom + 'px';\r\n\t\tthis._container.style.left = left + 'px';\r\n\t},\r\n\r\n\t_getAnchor: function () {\r\n\t\treturn [0, 0];\r\n\t}\r\n\r\n});\r\n\n\n\n/*\r\n * @class Popup\r\n * @inherits DivOverlay\r\n * @aka L.Popup\r\n * Used to open popups in certain places of the map. Use [Map.openPopup](#map-openpopup) to\r\n * open popups while making sure that only one popup is open at one time\r\n * (recommended for usability), or use [Map.addLayer](#map-addlayer) to open as many as you want.\r\n *\r\n * @example\r\n *\r\n * If you want to just bind a popup to marker click and then open it, it's really easy:\r\n *\r\n * ```js\r\n * marker.bindPopup(popupContent).openPopup();\r\n * ```\r\n * Path overlays like polylines also have a `bindPopup` method.\r\n * Here's a more complicated way to open a popup on a map:\r\n *\r\n * ```js\r\n * var popup = L.popup()\r\n * \t.setLatLng(latlng)\r\n * \t.setContent('<p>Hello world!<br />This is a nice popup.</p>')\r\n * \t.openOn(map);\r\n * ```\r\n */\r\n\r\n\r\n// @namespace Popup\r\nL.Popup = L.DivOverlay.extend({\r\n\r\n\t// @section\r\n\t// @aka Popup options\r\n\toptions: {\r\n\t\t// @option maxWidth: Number = 300\r\n\t\t// Max width of the popup, in pixels.\r\n\t\tmaxWidth: 300,\r\n\r\n\t\t// @option minWidth: Number = 50\r\n\t\t// Min width of the popup, in pixels.\r\n\t\tminWidth: 50,\r\n\r\n\t\t// @option maxHeight: Number = null\r\n\t\t// If set, creates a scrollable container of the given height\r\n\t\t// inside a popup if its content exceeds it.\r\n\t\tmaxHeight: null,\r\n\r\n\t\t// @option autoPan: Boolean = true\r\n\t\t// Set it to `false` if you don't want the map to do panning animation\r\n\t\t// to fit the opened popup.\r\n\t\tautoPan: true,\r\n\r\n\t\t// @option autoPanPaddingTopLeft: Point = null\r\n\t\t// The margin between the popup and the top left corner of the map\r\n\t\t// view after autopanning was performed.\r\n\t\tautoPanPaddingTopLeft: null,\r\n\r\n\t\t// @option autoPanPaddingBottomRight: Point = null\r\n\t\t// The margin between the popup and the bottom right corner of the map\r\n\t\t// view after autopanning was performed.\r\n\t\tautoPanPaddingBottomRight: null,\r\n\r\n\t\t// @option autoPanPadding: Point = Point(5, 5)\r\n\t\t// Equivalent of setting both top left and bottom right autopan padding to the same value.\r\n\t\tautoPanPadding: [5, 5],\r\n\r\n\t\t// @option keepInView: Boolean = false\r\n\t\t// Set it to `true` if you want to prevent users from panning the popup\r\n\t\t// off of the screen while it is open.\r\n\t\tkeepInView: false,\r\n\r\n\t\t// @option closeButton: Boolean = true\r\n\t\t// Controls the presence of a close button in the popup.\r\n\t\tcloseButton: true,\r\n\r\n\t\t// @option autoClose: Boolean = true\r\n\t\t// Set it to `false` if you want to override the default behavior of\r\n\t\t// the popup closing when user clicks the map (set globally by\r\n\t\t// the Map's [closePopupOnClick](#map-closepopuponclick) option).\r\n\t\tautoClose: true,\r\n\r\n\t\t// @option className: String = ''\r\n\t\t// A custom CSS class name to assign to the popup.\r\n\t\tclassName: ''\r\n\t},\r\n\r\n\t// @namespace Popup\r\n\t// @method openOn(map: Map): this\r\n\t// Adds the popup to the map and closes the previous one. The same as `map.openPopup(popup)`.\r\n\topenOn: function (map) {\r\n\t\tmap.openPopup(this);\r\n\t\treturn this;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tL.DivOverlay.prototype.onAdd.call(this, map);\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Popup events\r\n\t\t// @event popupopen: PopupEvent\r\n\t\t// Fired when a popup is opened in the map\r\n\t\tmap.fire('popupopen', {popup: this});\r\n\r\n\t\tif (this._source) {\r\n\t\t\t// @namespace Layer\r\n\t\t\t// @section Popup events\r\n\t\t\t// @event popupopen: PopupEvent\r\n\t\t\t// Fired when a popup bound to this layer is opened\r\n\t\t\tthis._source.fire('popupopen', {popup: this}, true);\r\n\t\t\t// For non-path layers, we toggle the popup when clicking\r\n\t\t\t// again the layer, so prevent the map to reopen it.\r\n\t\t\tif (!(this._source instanceof L.Path)) {\r\n\t\t\t\tthis._source.on('preclick', L.DomEvent.stopPropagation);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tL.DivOverlay.prototype.onRemove.call(this, map);\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Popup events\r\n\t\t// @event popupclose: PopupEvent\r\n\t\t// Fired when a popup in the map is closed\r\n\t\tmap.fire('popupclose', {popup: this});\r\n\r\n\t\tif (this._source) {\r\n\t\t\t// @namespace Layer\r\n\t\t\t// @section Popup events\r\n\t\t\t// @event popupclose: PopupEvent\r\n\t\t\t// Fired when a popup bound to this layer is closed\r\n\t\t\tthis._source.fire('popupclose', {popup: this}, true);\r\n\t\t\tif (!(this._source instanceof L.Path)) {\r\n\t\t\t\tthis._source.off('preclick', L.DomEvent.stopPropagation);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\tvar events = L.DivOverlay.prototype.getEvents.call(this);\r\n\r\n\t\tif ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {\r\n\t\t\tevents.preclick = this._close;\r\n\t\t}\r\n\r\n\t\tif (this.options.keepInView) {\r\n\t\t\tevents.moveend = this._adjustPan;\r\n\t\t}\r\n\r\n\t\treturn events;\r\n\t},\r\n\r\n\t_close: function () {\r\n\t\tif (this._map) {\r\n\t\t\tthis._map.closePopup(this);\r\n\t\t}\r\n\t},\r\n\r\n\t_initLayout: function () {\r\n\t\tvar prefix = 'leaflet-popup',\r\n\t\t    container = this._container = L.DomUtil.create('div',\r\n\t\t\tprefix + ' ' + (this.options.className || '') +\r\n\t\t\t' leaflet-zoom-animated');\r\n\r\n\t\tif (this.options.closeButton) {\r\n\t\t\tvar closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container);\r\n\t\t\tcloseButton.href = '#close';\r\n\t\t\tcloseButton.innerHTML = '&#215;';\r\n\r\n\t\t\tL.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);\r\n\t\t}\r\n\r\n\t\tvar wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container);\r\n\t\tthis._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);\r\n\r\n\t\tL.DomEvent\r\n\t\t\t.disableClickPropagation(wrapper)\r\n\t\t\t.disableScrollPropagation(this._contentNode)\r\n\t\t\t.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);\r\n\r\n\t\tthis._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);\r\n\t\tthis._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);\r\n\t},\r\n\r\n\t_updateLayout: function () {\r\n\t\tvar container = this._contentNode,\r\n\t\t    style = container.style;\r\n\r\n\t\tstyle.width = '';\r\n\t\tstyle.whiteSpace = 'nowrap';\r\n\r\n\t\tvar width = container.offsetWidth;\r\n\t\twidth = Math.min(width, this.options.maxWidth);\r\n\t\twidth = Math.max(width, this.options.minWidth);\r\n\r\n\t\tstyle.width = (width + 1) + 'px';\r\n\t\tstyle.whiteSpace = '';\r\n\r\n\t\tstyle.height = '';\r\n\r\n\t\tvar height = container.offsetHeight,\r\n\t\t    maxHeight = this.options.maxHeight,\r\n\t\t    scrolledClass = 'leaflet-popup-scrolled';\r\n\r\n\t\tif (maxHeight && height > maxHeight) {\r\n\t\t\tstyle.height = maxHeight + 'px';\r\n\t\t\tL.DomUtil.addClass(container, scrolledClass);\r\n\t\t} else {\r\n\t\t\tL.DomUtil.removeClass(container, scrolledClass);\r\n\t\t}\r\n\r\n\t\tthis._containerWidth = this._container.offsetWidth;\r\n\t},\r\n\r\n\t_animateZoom: function (e) {\r\n\t\tvar pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center),\r\n\t\t    anchor = this._getAnchor();\r\n\t\tL.DomUtil.setPosition(this._container, pos.add(anchor));\r\n\t},\r\n\r\n\t_adjustPan: function () {\r\n\t\tif (!this.options.autoPan || (this._map._panAnim && this._map._panAnim._inProgress)) { return; }\r\n\r\n\t\tvar map = this._map,\r\n\t\t    marginBottom = parseInt(L.DomUtil.getStyle(this._container, 'marginBottom'), 10) || 0,\r\n\t\t    containerHeight = this._container.offsetHeight + marginBottom,\r\n\t\t    containerWidth = this._containerWidth,\r\n\t\t    layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);\r\n\r\n\t\tlayerPos._add(L.DomUtil.getPosition(this._container));\r\n\r\n\t\tvar containerPos = map.layerPointToContainerPoint(layerPos),\r\n\t\t    padding = L.point(this.options.autoPanPadding),\r\n\t\t    paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),\r\n\t\t    paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),\r\n\t\t    size = map.getSize(),\r\n\t\t    dx = 0,\r\n\t\t    dy = 0;\r\n\r\n\t\tif (containerPos.x + containerWidth + paddingBR.x > size.x) { // right\r\n\t\t\tdx = containerPos.x + containerWidth - size.x + paddingBR.x;\r\n\t\t}\r\n\t\tif (containerPos.x - dx - paddingTL.x < 0) { // left\r\n\t\t\tdx = containerPos.x - paddingTL.x;\r\n\t\t}\r\n\t\tif (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom\r\n\t\t\tdy = containerPos.y + containerHeight - size.y + paddingBR.y;\r\n\t\t}\r\n\t\tif (containerPos.y - dy - paddingTL.y < 0) { // top\r\n\t\t\tdy = containerPos.y - paddingTL.y;\r\n\t\t}\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Popup events\r\n\t\t// @event autopanstart: Event\r\n\t\t// Fired when the map starts autopanning when opening a popup.\r\n\t\tif (dx || dy) {\r\n\t\t\tmap\r\n\t\t\t    .fire('autopanstart')\r\n\t\t\t    .panBy([dx, dy]);\r\n\t\t}\r\n\t},\r\n\r\n\t_onCloseButtonClick: function (e) {\r\n\t\tthis._close();\r\n\t\tL.DomEvent.stop(e);\r\n\t},\r\n\r\n\t_getAnchor: function () {\r\n\t\t// Where should we anchor the popup on the source layer?\r\n\t\treturn L.point(this._source && this._source._getPopupAnchor ? this._source._getPopupAnchor() : [0, 0]);\r\n\t}\r\n\r\n});\r\n\r\n// @namespace Popup\r\n// @factory L.popup(options?: Popup options, source?: Layer)\r\n// Instantiates a `Popup` object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the popup with a reference to the Layer to which it refers.\r\nL.popup = function (options, source) {\r\n\treturn new L.Popup(options, source);\r\n};\r\n\r\n\r\n/* @namespace Map\r\n * @section Interaction Options\r\n * @option closePopupOnClick: Boolean = true\r\n * Set it to `false` if you don't want popups to close when user clicks the map.\r\n */\r\nL.Map.mergeOptions({\r\n\tclosePopupOnClick: true\r\n});\r\n\r\n\r\n// @namespace Map\r\n// @section Methods for Layers and Controls\r\nL.Map.include({\r\n\t// @method openPopup(popup: Popup): this\r\n\t// Opens the specified popup while closing the previously opened (to make sure only one is opened at one time for usability).\r\n\t// @alternative\r\n\t// @method openPopup(content: String|HTMLElement, latlng: LatLng, options?: Popup options): this\r\n\t// Creates a popup with the specified content and options and opens it in the given point on a map.\r\n\topenPopup: function (popup, latlng, options) {\r\n\t\tif (!(popup instanceof L.Popup)) {\r\n\t\t\tpopup = new L.Popup(options).setContent(popup);\r\n\t\t}\r\n\r\n\t\tif (latlng) {\r\n\t\t\tpopup.setLatLng(latlng);\r\n\t\t}\r\n\r\n\t\tif (this.hasLayer(popup)) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tif (this._popup && this._popup.options.autoClose) {\r\n\t\t\tthis.closePopup();\r\n\t\t}\r\n\r\n\t\tthis._popup = popup;\r\n\t\treturn this.addLayer(popup);\r\n\t},\r\n\r\n\t// @method closePopup(popup?: Popup): this\r\n\t// Closes the popup previously opened with [openPopup](#map-openpopup) (or the given one).\r\n\tclosePopup: function (popup) {\r\n\t\tif (!popup || popup === this._popup) {\r\n\t\t\tpopup = this._popup;\r\n\t\t\tthis._popup = null;\r\n\t\t}\r\n\t\tif (popup) {\r\n\t\t\tthis.removeLayer(popup);\r\n\t\t}\r\n\t\treturn this;\r\n\t}\r\n});\r\n\r\n/*\r\n * @namespace Layer\r\n * @section Popup methods example\r\n *\r\n * All layers share a set of methods convenient for binding popups to it.\r\n *\r\n * ```js\r\n * var layer = L.Polygon(latlngs).bindPopup('Hi There!').addTo(map);\r\n * layer.openPopup();\r\n * layer.closePopup();\r\n * ```\r\n *\r\n * Popups will also be automatically opened when the layer is clicked on and closed when the layer is removed from the map or another popup is opened.\r\n */\r\n\r\n// @section Popup methods\r\nL.Layer.include({\r\n\r\n\t// @method bindPopup(content: String|HTMLElement|Function|Popup, options?: Popup options): this\r\n\t// Binds a popup to the layer with the passed `content` and sets up the\r\n\t// neccessary event listeners. If a `Function` is passed it will receive\r\n\t// the layer as the first argument and should return a `String` or `HTMLElement`.\r\n\tbindPopup: function (content, options) {\r\n\r\n\t\tif (content instanceof L.Popup) {\r\n\t\t\tL.setOptions(content, options);\r\n\t\t\tthis._popup = content;\r\n\t\t\tcontent._source = this;\r\n\t\t} else {\r\n\t\t\tif (!this._popup || options) {\r\n\t\t\t\tthis._popup = new L.Popup(options, this);\r\n\t\t\t}\r\n\t\t\tthis._popup.setContent(content);\r\n\t\t}\r\n\r\n\t\tif (!this._popupHandlersAdded) {\r\n\t\t\tthis.on({\r\n\t\t\t\tclick: this._openPopup,\r\n\t\t\t\tremove: this.closePopup,\r\n\t\t\t\tmove: this._movePopup\r\n\t\t\t});\r\n\t\t\tthis._popupHandlersAdded = true;\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method unbindPopup(): this\r\n\t// Removes the popup previously bound with `bindPopup`.\r\n\tunbindPopup: function () {\r\n\t\tif (this._popup) {\r\n\t\t\tthis.off({\r\n\t\t\t\tclick: this._openPopup,\r\n\t\t\t\tremove: this.closePopup,\r\n\t\t\t\tmove: this._movePopup\r\n\t\t\t});\r\n\t\t\tthis._popupHandlersAdded = false;\r\n\t\t\tthis._popup = null;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method openPopup(latlng?: LatLng): this\r\n\t// Opens the bound popup at the specificed `latlng` or at the default popup anchor if no `latlng` is passed.\r\n\topenPopup: function (layer, latlng) {\r\n\t\tif (!(layer instanceof L.Layer)) {\r\n\t\t\tlatlng = layer;\r\n\t\t\tlayer = this;\r\n\t\t}\r\n\r\n\t\tif (layer instanceof L.FeatureGroup) {\r\n\t\t\tfor (var id in this._layers) {\r\n\t\t\t\tlayer = this._layers[id];\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (!latlng) {\r\n\t\t\tlatlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();\r\n\t\t}\r\n\r\n\t\tif (this._popup && this._map) {\r\n\t\t\t// set popup source to this layer\r\n\t\t\tthis._popup._source = layer;\r\n\r\n\t\t\t// update the popup (content, layout, ect...)\r\n\t\t\tthis._popup.update();\r\n\r\n\t\t\t// open the popup on the map\r\n\t\t\tthis._map.openPopup(this._popup, latlng);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method closePopup(): this\r\n\t// Closes the popup bound to this layer if it is open.\r\n\tclosePopup: function () {\r\n\t\tif (this._popup) {\r\n\t\t\tthis._popup._close();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method togglePopup(): this\r\n\t// Opens or closes the popup bound to this layer depending on its current state.\r\n\ttogglePopup: function (target) {\r\n\t\tif (this._popup) {\r\n\t\t\tif (this._popup._map) {\r\n\t\t\t\tthis.closePopup();\r\n\t\t\t} else {\r\n\t\t\t\tthis.openPopup(target);\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method isPopupOpen(): boolean\r\n\t// Returns `true` if the popup bound to this layer is currently open.\r\n\tisPopupOpen: function () {\r\n\t\treturn (this._popup ? this._popup.isOpen() : false);\r\n\t},\r\n\r\n\t// @method setPopupContent(content: String|HTMLElement|Popup): this\r\n\t// Sets the content of the popup bound to this layer.\r\n\tsetPopupContent: function (content) {\r\n\t\tif (this._popup) {\r\n\t\t\tthis._popup.setContent(content);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getPopup(): Popup\r\n\t// Returns the popup bound to this layer.\r\n\tgetPopup: function () {\r\n\t\treturn this._popup;\r\n\t},\r\n\r\n\t_openPopup: function (e) {\r\n\t\tvar layer = e.layer || e.target;\r\n\r\n\t\tif (!this._popup) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (!this._map) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\t// prevent map click\r\n\t\tL.DomEvent.stop(e);\r\n\r\n\t\t// if this inherits from Path its a vector and we can just\r\n\t\t// open the popup at the new location\r\n\t\tif (layer instanceof L.Path) {\r\n\t\t\tthis.openPopup(e.layer || e.target, e.latlng);\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\t// otherwise treat it like a marker and figure out\r\n\t\t// if we should toggle it open/closed\r\n\t\tif (this._map.hasLayer(this._popup) && this._popup._source === layer) {\r\n\t\t\tthis.closePopup();\r\n\t\t} else {\r\n\t\t\tthis.openPopup(layer, e.latlng);\r\n\t\t}\r\n\t},\r\n\r\n\t_movePopup: function (e) {\r\n\t\tthis._popup.setLatLng(e.latlng);\r\n\t}\r\n});\r\n\n\n\n/*\n * @class Tooltip\n * @inherits DivOverlay\n * @aka L.Tooltip\n * Used to display small texts on top of map layers.\n *\n * @example\n *\n * ```js\n * marker.bindTooltip(\"my tooltip text\").openTooltip();\n * ```\n * Note about tooltip offset. Leaflet takes two options in consideration\n * for computing tooltip offseting:\n * - the `offset` Tooltip option: it defaults to [0, 0], and it's specific to one tooltip.\n *   Add a positive x offset to move the tooltip to the right, and a positive y offset to\n *   move it to the bottom. Negatives will move to the left and top.\n * - the `tooltipAnchor` Icon option: this will only be considered for Marker. You\n *   should adapt this value if you use a custom icon.\n */\n\n\n// @namespace Tooltip\nL.Tooltip = L.DivOverlay.extend({\n\n\t// @section\n\t// @aka Tooltip options\n\toptions: {\n\t\t// @option pane: String = 'tooltipPane'\n\t\t// `Map pane` where the tooltip will be added.\n\t\tpane: 'tooltipPane',\n\n\t\t// @option offset: Point = Point(0, 0)\n\t\t// Optional offset of the tooltip position.\n\t\toffset: [0, 0],\n\n\t\t// @option direction: String = 'auto'\n\t\t// Direction where to open the tooltip. Possible values are: `right`, `left`,\n\t\t// `top`, `bottom`, `center`, `auto`.\n\t\t// `auto` will dynamicaly switch between `right` and `left` according to the tooltip\n\t\t// position on the map.\n\t\tdirection: 'auto',\n\n\t\t// @option permanent: Boolean = false\n\t\t// Whether to open the tooltip permanently or only on mouseover.\n\t\tpermanent: false,\n\n\t\t// @option sticky: Boolean = false\n\t\t// If true, the tooltip will follow the mouse instead of being fixed at the feature center.\n\t\tsticky: false,\n\n\t\t// @option interactive: Boolean = false\n\t\t// If true, the tooltip will listen to the feature events.\n\t\tinteractive: false,\n\n\t\t// @option opacity: Number = 0.9\n\t\t// Tooltip container opacity.\n\t\topacity: 0.9\n\t},\n\n\tonAdd: function (map) {\n\t\tL.DivOverlay.prototype.onAdd.call(this, map);\n\t\tthis.setOpacity(this.options.opacity);\n\n\t\t// @namespace Map\n\t\t// @section Tooltip events\n\t\t// @event tooltipopen: TooltipEvent\n\t\t// Fired when a tooltip is opened in the map.\n\t\tmap.fire('tooltipopen', {tooltip: this});\n\n\t\tif (this._source) {\n\t\t\t// @namespace Layer\n\t\t\t// @section Tooltip events\n\t\t\t// @event tooltipopen: TooltipEvent\n\t\t\t// Fired when a tooltip bound to this layer is opened.\n\t\t\tthis._source.fire('tooltipopen', {tooltip: this}, true);\n\t\t}\n\t},\n\n\tonRemove: function (map) {\n\t\tL.DivOverlay.prototype.onRemove.call(this, map);\n\n\t\t// @namespace Map\n\t\t// @section Tooltip events\n\t\t// @event tooltipclose: TooltipEvent\n\t\t// Fired when a tooltip in the map is closed.\n\t\tmap.fire('tooltipclose', {tooltip: this});\n\n\t\tif (this._source) {\n\t\t\t// @namespace Layer\n\t\t\t// @section Tooltip events\n\t\t\t// @event tooltipclose: TooltipEvent\n\t\t\t// Fired when a tooltip bound to this layer is closed.\n\t\t\tthis._source.fire('tooltipclose', {tooltip: this}, true);\n\t\t}\n\t},\n\n\tgetEvents: function () {\n\t\tvar events = L.DivOverlay.prototype.getEvents.call(this);\n\n\t\tif (L.Browser.touch && !this.options.permanent) {\n\t\t\tevents.preclick = this._close;\n\t\t}\n\n\t\treturn events;\n\t},\n\n\t_close: function () {\n\t\tif (this._map) {\n\t\t\tthis._map.closeTooltip(this);\n\t\t}\n\t},\n\n\t_initLayout: function () {\n\t\tvar prefix = 'leaflet-tooltip',\n\t\t    className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');\n\n\t\tthis._contentNode = this._container = L.DomUtil.create('div', className);\n\t},\n\n\t_updateLayout: function () {},\n\n\t_adjustPan: function () {},\n\n\t_setPosition: function (pos) {\n\t\tvar map = this._map,\n\t\t    container = this._container,\n\t\t    centerPoint = map.latLngToContainerPoint(map.getCenter()),\n\t\t    tooltipPoint = map.layerPointToContainerPoint(pos),\n\t\t    direction = this.options.direction,\n\t\t    tooltipWidth = container.offsetWidth,\n\t\t    tooltipHeight = container.offsetHeight,\n\t\t    offset = L.point(this.options.offset),\n\t\t    anchor = this._getAnchor();\n\n\t\tif (direction === 'top') {\n\t\t\tpos = pos.add(L.point(-tooltipWidth / 2 + offset.x, -tooltipHeight + offset.y + anchor.y, true));\n\t\t} else if (direction === 'bottom') {\n\t\t\tpos = pos.subtract(L.point(tooltipWidth / 2 - offset.x, -offset.y, true));\n\t\t} else if (direction === 'center') {\n\t\t\tpos = pos.subtract(L.point(tooltipWidth / 2 + offset.x, tooltipHeight / 2 - anchor.y + offset.y, true));\n\t\t} else if (direction === 'right' || direction === 'auto' && tooltipPoint.x < centerPoint.x) {\n\t\t\tdirection = 'right';\n\t\t\tpos = pos.add(L.point(offset.x + anchor.x, anchor.y - tooltipHeight / 2 + offset.y, true));\n\t\t} else {\n\t\t\tdirection = 'left';\n\t\t\tpos = pos.subtract(L.point(tooltipWidth + anchor.x - offset.x, tooltipHeight / 2 - anchor.y - offset.y, true));\n\t\t}\n\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-right');\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-left');\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-top');\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-bottom');\n\t\tL.DomUtil.addClass(container, 'leaflet-tooltip-' + direction);\n\t\tL.DomUtil.setPosition(container, pos);\n\t},\n\n\t_updatePosition: function () {\n\t\tvar pos = this._map.latLngToLayerPoint(this._latlng);\n\t\tthis._setPosition(pos);\n\t},\n\n\tsetOpacity: function (opacity) {\n\t\tthis.options.opacity = opacity;\n\n\t\tif (this._container) {\n\t\t\tL.DomUtil.setOpacity(this._container, opacity);\n\t\t}\n\t},\n\n\t_animateZoom: function (e) {\n\t\tvar pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);\n\t\tthis._setPosition(pos);\n\t},\n\n\t_getAnchor: function () {\n\t\t// Where should we anchor the tooltip on the source layer?\n\t\treturn L.point(this._source && this._source._getTooltipAnchor && !this.options.sticky ? this._source._getTooltipAnchor() : [0, 0]);\n\t}\n\n});\n\n// @namespace Tooltip\n// @factory L.tooltip(options?: Tooltip options, source?: Layer)\n// Instantiates a Tooltip object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the tooltip with a reference to the Layer to which it refers.\nL.tooltip = function (options, source) {\n\treturn new L.Tooltip(options, source);\n};\n\n// @namespace Map\n// @section Methods for Layers and Controls\nL.Map.include({\n\n\t// @method openTooltip(tooltip: Tooltip): this\n\t// Opens the specified tooltip.\n\t// @alternative\n\t// @method openTooltip(content: String|HTMLElement, latlng: LatLng, options?: Tooltip options): this\n\t// Creates a tooltip with the specified content and options and open it.\n\topenTooltip: function (tooltip, latlng, options) {\n\t\tif (!(tooltip instanceof L.Tooltip)) {\n\t\t\ttooltip = new L.Tooltip(options).setContent(tooltip);\n\t\t}\n\n\t\tif (latlng) {\n\t\t\ttooltip.setLatLng(latlng);\n\t\t}\n\n\t\tif (this.hasLayer(tooltip)) {\n\t\t\treturn this;\n\t\t}\n\n\t\treturn this.addLayer(tooltip);\n\t},\n\n\t// @method closeTooltip(tooltip?: Tooltip): this\n\t// Closes the tooltip given as parameter.\n\tcloseTooltip: function (tooltip) {\n\t\tif (tooltip) {\n\t\t\tthis.removeLayer(tooltip);\n\t\t}\n\t\treturn this;\n\t}\n\n});\n\n/*\n * @namespace Layer\n * @section Tooltip methods example\n *\n * All layers share a set of methods convenient for binding tooltips to it.\n *\n * ```js\n * var layer = L.Polygon(latlngs).bindTooltip('Hi There!').addTo(map);\n * layer.openTooltip();\n * layer.closeTooltip();\n * ```\n */\n\n// @section Tooltip methods\nL.Layer.include({\n\n\t// @method bindTooltip(content: String|HTMLElement|Function|Tooltip, options?: Tooltip options): this\n\t// Binds a tooltip to the layer with the passed `content` and sets up the\n\t// neccessary event listeners. If a `Function` is passed it will receive\n\t// the layer as the first argument and should return a `String` or `HTMLElement`.\n\tbindTooltip: function (content, options) {\n\n\t\tif (content instanceof L.Tooltip) {\n\t\t\tL.setOptions(content, options);\n\t\t\tthis._tooltip = content;\n\t\t\tcontent._source = this;\n\t\t} else {\n\t\t\tif (!this._tooltip || options) {\n\t\t\t\tthis._tooltip = L.tooltip(options, this);\n\t\t\t}\n\t\t\tthis._tooltip.setContent(content);\n\n\t\t}\n\n\t\tthis._initTooltipInteractions();\n\n\t\tif (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) {\n\t\t\tthis.openTooltip();\n\t\t}\n\n\t\treturn this;\n\t},\n\n\t// @method unbindTooltip(): this\n\t// Removes the tooltip previously bound with `bindTooltip`.\n\tunbindTooltip: function () {\n\t\tif (this._tooltip) {\n\t\t\tthis._initTooltipInteractions(true);\n\t\t\tthis.closeTooltip();\n\t\t\tthis._tooltip = null;\n\t\t}\n\t\treturn this;\n\t},\n\n\t_initTooltipInteractions: function (remove) {\n\t\tif (!remove && this._tooltipHandlersAdded) { return; }\n\t\tvar onOff = remove ? 'off' : 'on',\n\t\t    events = {\n\t\t\tremove: this.closeTooltip,\n\t\t\tmove: this._moveTooltip\n\t\t    };\n\t\tif (!this._tooltip.options.permanent) {\n\t\t\tevents.mouseover = this._openTooltip;\n\t\t\tevents.mouseout = this.closeTooltip;\n\t\t\tif (this._tooltip.options.sticky) {\n\t\t\t\tevents.mousemove = this._moveTooltip;\n\t\t\t}\n\t\t\tif (L.Browser.touch) {\n\t\t\t\tevents.click = this._openTooltip;\n\t\t\t}\n\t\t} else {\n\t\t\tevents.add = this._openTooltip;\n\t\t}\n\t\tthis[onOff](events);\n\t\tthis._tooltipHandlersAdded = !remove;\n\t},\n\n\t// @method openTooltip(latlng?: LatLng): this\n\t// Opens the bound tooltip at the specificed `latlng` or at the default tooltip anchor if no `latlng` is passed.\n\topenTooltip: function (layer, latlng) {\n\t\tif (!(layer instanceof L.Layer)) {\n\t\t\tlatlng = layer;\n\t\t\tlayer = this;\n\t\t}\n\n\t\tif (layer instanceof L.FeatureGroup) {\n\t\t\tfor (var id in this._layers) {\n\t\t\t\tlayer = this._layers[id];\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\tif (!latlng) {\n\t\t\tlatlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();\n\t\t}\n\n\t\tif (this._tooltip && this._map) {\n\n\t\t\t// set tooltip source to this layer\n\t\t\tthis._tooltip._source = layer;\n\n\t\t\t// update the tooltip (content, layout, ect...)\n\t\t\tthis._tooltip.update();\n\n\t\t\t// open the tooltip on the map\n\t\t\tthis._map.openTooltip(this._tooltip, latlng);\n\n\t\t\t// Tooltip container may not be defined if not permanent and never\n\t\t\t// opened.\n\t\t\tif (this._tooltip.options.interactive && this._tooltip._container) {\n\t\t\t\tL.DomUtil.addClass(this._tooltip._container, 'leaflet-clickable');\n\t\t\t\tthis.addInteractiveTarget(this._tooltip._container);\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\t// @method closeTooltip(): this\n\t// Closes the tooltip bound to this layer if it is open.\n\tcloseTooltip: function () {\n\t\tif (this._tooltip) {\n\t\t\tthis._tooltip._close();\n\t\t\tif (this._tooltip.options.interactive && this._tooltip._container) {\n\t\t\t\tL.DomUtil.removeClass(this._tooltip._container, 'leaflet-clickable');\n\t\t\t\tthis.removeInteractiveTarget(this._tooltip._container);\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method toggleTooltip(): this\n\t// Opens or closes the tooltip bound to this layer depending on its current state.\n\ttoggleTooltip: function (target) {\n\t\tif (this._tooltip) {\n\t\t\tif (this._tooltip._map) {\n\t\t\t\tthis.closeTooltip();\n\t\t\t} else {\n\t\t\t\tthis.openTooltip(target);\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method isTooltipOpen(): boolean\n\t// Returns `true` if the tooltip bound to this layer is currently open.\n\tisTooltipOpen: function () {\n\t\treturn this._tooltip.isOpen();\n\t},\n\n\t// @method setTooltipContent(content: String|HTMLElement|Tooltip): this\n\t// Sets the content of the tooltip bound to this layer.\n\tsetTooltipContent: function (content) {\n\t\tif (this._tooltip) {\n\t\t\tthis._tooltip.setContent(content);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method getTooltip(): Tooltip\n\t// Returns the tooltip bound to this layer.\n\tgetTooltip: function () {\n\t\treturn this._tooltip;\n\t},\n\n\t_openTooltip: function (e) {\n\t\tvar layer = e.layer || e.target;\n\n\t\tif (!this._tooltip || !this._map) {\n\t\t\treturn;\n\t\t}\n\t\tthis.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined);\n\t},\n\n\t_moveTooltip: function (e) {\n\t\tvar latlng = e.latlng, containerPoint, layerPoint;\n\t\tif (this._tooltip.options.sticky && e.originalEvent) {\n\t\t\tcontainerPoint = this._map.mouseEventToContainerPoint(e.originalEvent);\n\t\t\tlayerPoint = this._map.containerPointToLayerPoint(containerPoint);\n\t\t\tlatlng = this._map.layerPointToLatLng(layerPoint);\n\t\t}\n\t\tthis._tooltip.setLatLng(latlng);\n\t}\n});\n\n\n\n/*\r\n * @class LayerGroup\r\n * @aka L.LayerGroup\r\n * @inherits Layer\r\n *\r\n * Used to group several layers and handle them as one. If you add it to the map,\r\n * any layers added or removed from the group will be added/removed on the map as\r\n * well. Extends `Layer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.layerGroup([marker1, marker2])\r\n * \t.addLayer(polyline)\r\n * \t.addTo(map);\r\n * ```\r\n */\r\n\r\nL.LayerGroup = L.Layer.extend({\r\n\r\n\tinitialize: function (layers) {\r\n\t\tthis._layers = {};\r\n\r\n\t\tvar i, len;\r\n\r\n\t\tif (layers) {\r\n\t\t\tfor (i = 0, len = layers.length; i < len; i++) {\r\n\t\t\t\tthis.addLayer(layers[i]);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t// @method addLayer(layer: Layer): this\r\n\t// Adds the given layer to the group.\r\n\taddLayer: function (layer) {\r\n\t\tvar id = this.getLayerId(layer);\r\n\r\n\t\tthis._layers[id] = layer;\r\n\r\n\t\tif (this._map) {\r\n\t\t\tthis._map.addLayer(layer);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeLayer(layer: Layer): this\r\n\t// Removes the given layer from the group.\r\n\t// @alternative\r\n\t// @method removeLayer(id: Number): this\r\n\t// Removes the layer with the given internal ID from the group.\r\n\tremoveLayer: function (layer) {\r\n\t\tvar id = layer in this._layers ? layer : this.getLayerId(layer);\r\n\r\n\t\tif (this._map && this._layers[id]) {\r\n\t\t\tthis._map.removeLayer(this._layers[id]);\r\n\t\t}\r\n\r\n\t\tdelete this._layers[id];\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method hasLayer(layer: Layer): Boolean\r\n\t// Returns `true` if the given layer is currently added to the group.\r\n\thasLayer: function (layer) {\r\n\t\treturn !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers);\r\n\t},\r\n\r\n\t// @method clearLayers(): this\r\n\t// Removes all the layers from the group.\r\n\tclearLayers: function () {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tthis.removeLayer(this._layers[i]);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method invoke(methodName: String, …): this\r\n\t// Calls `methodName` on every layer contained in this group, passing any\r\n\t// additional parameters. Has no effect if the layers contained do not\r\n\t// implement `methodName`.\r\n\tinvoke: function (methodName) {\r\n\t\tvar args = Array.prototype.slice.call(arguments, 1),\r\n\t\t    i, layer;\r\n\r\n\t\tfor (i in this._layers) {\r\n\t\t\tlayer = this._layers[i];\r\n\r\n\t\t\tif (layer[methodName]) {\r\n\t\t\t\tlayer[methodName].apply(layer, args);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tmap.addLayer(this._layers[i]);\r\n\t\t}\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tmap.removeLayer(this._layers[i]);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method eachLayer(fn: Function, context?: Object): this\r\n\t// Iterates over the layers of the group, optionally specifying context of the iterator function.\r\n\t// ```js\r\n\t// group.eachLayer(function (layer) {\r\n\t// \tlayer.bindPopup('Hello');\r\n\t// });\r\n\t// ```\r\n\teachLayer: function (method, context) {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tmethod.call(context, this._layers[i]);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getLayer(id: Number): Layer\r\n\t// Returns the layer with the given internal ID.\r\n\tgetLayer: function (id) {\r\n\t\treturn this._layers[id];\r\n\t},\r\n\r\n\t// @method getLayers(): Layer[]\r\n\t// Returns an array of all the layers added to the group.\r\n\tgetLayers: function () {\r\n\t\tvar layers = [];\r\n\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tlayers.push(this._layers[i]);\r\n\t\t}\r\n\t\treturn layers;\r\n\t},\r\n\r\n\t// @method setZIndex(zIndex: Number): this\r\n\t// Calls `setZIndex` on every layer contained in this group, passing the z-index.\r\n\tsetZIndex: function (zIndex) {\r\n\t\treturn this.invoke('setZIndex', zIndex);\r\n\t},\r\n\r\n\t// @method getLayerId(layer: Layer): Number\r\n\t// Returns the internal ID for a layer\r\n\tgetLayerId: function (layer) {\r\n\t\treturn L.stamp(layer);\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.layerGroup(layers: Layer[])\r\n// Create a layer group, optionally given an initial set of layers.\r\nL.layerGroup = function (layers) {\r\n\treturn new L.LayerGroup(layers);\r\n};\r\n\n\n\n/*\r\n * @class FeatureGroup\r\n * @aka L.FeatureGroup\r\n * @inherits LayerGroup\r\n *\r\n * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers:\r\n *  * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip))\r\n *  * Events are propagated to the `FeatureGroup`, so if the group has an event\r\n * handler, it will handle events from any of the layers. This includes mouse events\r\n * and custom events.\r\n *  * Has `layeradd` and `layerremove` events\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.featureGroup([marker1, marker2, polyline])\r\n * \t.bindPopup('Hello world!')\r\n * \t.on('click', function() { alert('Clicked on a member of the group!'); })\r\n * \t.addTo(map);\r\n * ```\r\n */\r\n\r\nL.FeatureGroup = L.LayerGroup.extend({\r\n\r\n\taddLayer: function (layer) {\r\n\t\tif (this.hasLayer(layer)) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tlayer.addEventParent(this);\r\n\r\n\t\tL.LayerGroup.prototype.addLayer.call(this, layer);\r\n\r\n\t\t// @event layeradd: LayerEvent\r\n\t\t// Fired when a layer is added to this `FeatureGroup`\r\n\t\treturn this.fire('layeradd', {layer: layer});\r\n\t},\r\n\r\n\tremoveLayer: function (layer) {\r\n\t\tif (!this.hasLayer(layer)) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\t\tif (layer in this._layers) {\r\n\t\t\tlayer = this._layers[layer];\r\n\t\t}\r\n\r\n\t\tlayer.removeEventParent(this);\r\n\r\n\t\tL.LayerGroup.prototype.removeLayer.call(this, layer);\r\n\r\n\t\t// @event layerremove: LayerEvent\r\n\t\t// Fired when a layer is removed from this `FeatureGroup`\r\n\t\treturn this.fire('layerremove', {layer: layer});\r\n\t},\r\n\r\n\t// @method setStyle(style: Path options): this\r\n\t// Sets the given path options to each layer of the group that has a `setStyle` method.\r\n\tsetStyle: function (style) {\r\n\t\treturn this.invoke('setStyle', style);\r\n\t},\r\n\r\n\t// @method bringToFront(): this\r\n\t// Brings the layer group to the top of all other layers\r\n\tbringToFront: function () {\r\n\t\treturn this.invoke('bringToFront');\r\n\t},\r\n\r\n\t// @method bringToBack(): this\r\n\t// Brings the layer group to the top of all other layers\r\n\tbringToBack: function () {\r\n\t\treturn this.invoke('bringToBack');\r\n\t},\r\n\r\n\t// @method getBounds(): LatLngBounds\r\n\t// Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children).\r\n\tgetBounds: function () {\r\n\t\tvar bounds = new L.LatLngBounds();\r\n\r\n\t\tfor (var id in this._layers) {\r\n\t\t\tvar layer = this._layers[id];\r\n\t\t\tbounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());\r\n\t\t}\r\n\t\treturn bounds;\r\n\t}\r\n});\r\n\r\n// @factory L.featureGroup(layers: Layer[])\r\n// Create a feature group, optionally given an initial set of layers.\r\nL.featureGroup = function (layers) {\r\n\treturn new L.FeatureGroup(layers);\r\n};\r\n\n\n\n/*\n * @class Renderer\n * @inherits Layer\n * @aka L.Renderer\n *\n * Base class for vector renderer implementations (`SVG`, `Canvas`). Handles the\n * DOM container of the renderer, its bounds, and its zoom animation.\n *\n * A `Renderer` works as an implicit layer group for all `Path`s - the renderer\n * itself can be added or removed to the map. All paths use a renderer, which can\n * be implicit (the map will decide the type of renderer and use it automatically)\n * or explicit (using the [`renderer`](#path-renderer) option of the path).\n *\n * Do not use this class directly, use `SVG` and `Canvas` instead.\n *\n * @event update: Event\n * Fired when the renderer updates its bounds, center and zoom, for example when\n * its map has moved\n */\n\nL.Renderer = L.Layer.extend({\n\n\t// @section\n\t// @aka Renderer options\n\toptions: {\n\t\t// @option padding: Number = 0.1\n\t\t// How much to extend the clip area around the map view (relative to its size)\n\t\t// e.g. 0.1 would be 10% of map view in each direction\n\t\tpadding: 0.1\n\t},\n\n\tinitialize: function (options) {\n\t\tL.setOptions(this, options);\n\t\tL.stamp(this);\n\t\tthis._layers = this._layers || {};\n\t},\n\n\tonAdd: function () {\n\t\tif (!this._container) {\n\t\t\tthis._initContainer(); // defined by renderer implementations\n\n\t\t\tif (this._zoomAnimated) {\n\t\t\t\tL.DomUtil.addClass(this._container, 'leaflet-zoom-animated');\n\t\t\t}\n\t\t}\n\n\t\tthis.getPane().appendChild(this._container);\n\t\tthis._update();\n\t\tthis.on('update', this._updatePaths, this);\n\t},\n\n\tonRemove: function () {\n\t\tL.DomUtil.remove(this._container);\n\t\tthis.off('update', this._updatePaths, this);\n\t},\n\n\tgetEvents: function () {\n\t\tvar events = {\n\t\t\tviewreset: this._reset,\n\t\t\tzoom: this._onZoom,\n\t\t\tmoveend: this._update,\n\t\t\tzoomend: this._onZoomEnd\n\t\t};\n\t\tif (this._zoomAnimated) {\n\t\t\tevents.zoomanim = this._onAnimZoom;\n\t\t}\n\t\treturn events;\n\t},\n\n\t_onAnimZoom: function (ev) {\n\t\tthis._updateTransform(ev.center, ev.zoom);\n\t},\n\n\t_onZoom: function () {\n\t\tthis._updateTransform(this._map.getCenter(), this._map.getZoom());\n\t},\n\n\t_updateTransform: function (center, zoom) {\n\t\tvar scale = this._map.getZoomScale(zoom, this._zoom),\n\t\t    position = L.DomUtil.getPosition(this._container),\n\t\t    viewHalf = this._map.getSize().multiplyBy(0.5 + this.options.padding),\n\t\t    currentCenterPoint = this._map.project(this._center, zoom),\n\t\t    destCenterPoint = this._map.project(center, zoom),\n\t\t    centerOffset = destCenterPoint.subtract(currentCenterPoint),\n\n\t\t    topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);\n\n\t\tif (L.Browser.any3d) {\n\t\t\tL.DomUtil.setTransform(this._container, topLeftOffset, scale);\n\t\t} else {\n\t\t\tL.DomUtil.setPosition(this._container, topLeftOffset);\n\t\t}\n\t},\n\n\t_reset: function () {\n\t\tthis._update();\n\t\tthis._updateTransform(this._center, this._zoom);\n\n\t\tfor (var id in this._layers) {\n\t\t\tthis._layers[id]._reset();\n\t\t}\n\t},\n\n\t_onZoomEnd: function () {\n\t\tfor (var id in this._layers) {\n\t\t\tthis._layers[id]._project();\n\t\t}\n\t},\n\n\t_updatePaths: function () {\n\t\tfor (var id in this._layers) {\n\t\t\tthis._layers[id]._update();\n\t\t}\n\t},\n\n\t_update: function () {\n\t\t// Update pixel bounds of renderer container (for positioning/sizing/clipping later)\n\t\t// Subclasses are responsible of firing the 'update' event.\n\t\tvar p = this.options.padding,\n\t\t    size = this._map.getSize(),\n\t\t    min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round();\n\n\t\tthis._bounds = new L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());\n\n\t\tthis._center = this._map.getCenter();\n\t\tthis._zoom = this._map.getZoom();\n\t}\n});\n\n\nL.Map.include({\n\t// @namespace Map; @method getRenderer(layer: Path): Renderer\n\t// Returns the instance of `Renderer` that should be used to render the given\n\t// `Path`. It will ensure that the `renderer` options of the map and paths\n\t// are respected, and that the renderers do exist on the map.\n\tgetRenderer: function (layer) {\n\t\t// @namespace Path; @option renderer: Renderer\n\t\t// Use this specific instance of `Renderer` for this path. Takes\n\t\t// precedence over the map's [default renderer](#map-renderer).\n\t\tvar renderer = layer.options.renderer || this._getPaneRenderer(layer.options.pane) || this.options.renderer || this._renderer;\n\n\t\tif (!renderer) {\n\t\t\t// @namespace Map; @option preferCanvas: Boolean = false\n\t\t\t// Whether `Path`s should be rendered on a `Canvas` renderer.\n\t\t\t// By default, all `Path`s are rendered in a `SVG` renderer.\n\t\t\trenderer = this._renderer = (this.options.preferCanvas && L.canvas()) || L.svg();\n\t\t}\n\n\t\tif (!this.hasLayer(renderer)) {\n\t\t\tthis.addLayer(renderer);\n\t\t}\n\t\treturn renderer;\n\t},\n\n\t_getPaneRenderer: function (name) {\n\t\tif (name === 'overlayPane' || name === undefined) {\n\t\t\treturn false;\n\t\t}\n\n\t\tvar renderer = this._paneRenderers[name];\n\t\tif (renderer === undefined) {\n\t\t\trenderer = (L.SVG && L.svg({pane: name})) || (L.Canvas && L.canvas({pane: name}));\n\t\t\tthis._paneRenderers[name] = renderer;\n\t\t}\n\t\treturn renderer;\n\t}\n});\n\n\n\n/*\n * @class Path\n * @aka L.Path\n * @inherits Interactive layer\n *\n * An abstract class that contains options and constants shared between vector\n * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`.\n */\n\nL.Path = L.Layer.extend({\n\n\t// @section\n\t// @aka Path options\n\toptions: {\n\t\t// @option stroke: Boolean = true\n\t\t// Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles.\n\t\tstroke: true,\n\n\t\t// @option color: String = '#3388ff'\n\t\t// Stroke color\n\t\tcolor: '#3388ff',\n\n\t\t// @option weight: Number = 3\n\t\t// Stroke width in pixels\n\t\tweight: 3,\n\n\t\t// @option opacity: Number = 1.0\n\t\t// Stroke opacity\n\t\topacity: 1,\n\n\t\t// @option lineCap: String= 'round'\n\t\t// A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke.\n\t\tlineCap: 'round',\n\n\t\t// @option lineJoin: String = 'round'\n\t\t// A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke.\n\t\tlineJoin: 'round',\n\n\t\t// @option dashArray: String = null\n\t\t// A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).\n\t\tdashArray: null,\n\n\t\t// @option dashOffset: String = null\n\t\t// A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).\n\t\tdashOffset: null,\n\n\t\t// @option fill: Boolean = depends\n\t\t// Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles.\n\t\tfill: false,\n\n\t\t// @option fillColor: String = *\n\t\t// Fill color. Defaults to the value of the [`color`](#path-color) option\n\t\tfillColor: null,\n\n\t\t// @option fillOpacity: Number = 0.2\n\t\t// Fill opacity.\n\t\tfillOpacity: 0.2,\n\n\t\t// @option fillRule: String = 'evenodd'\n\t\t// A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined.\n\t\tfillRule: 'evenodd',\n\n\t\t// className: '',\n\n\t\t// Option inherited from \"Interactive layer\" abstract class\n\t\tinteractive: true\n\t},\n\n\tbeforeAdd: function (map) {\n\t\t// Renderer is set here because we need to call renderer.getEvents\n\t\t// before this.getEvents.\n\t\tthis._renderer = map.getRenderer(this);\n\t},\n\n\tonAdd: function () {\n\t\tthis._renderer._initPath(this);\n\t\tthis._reset();\n\t\tthis._renderer._addPath(this);\n\t},\n\n\tonRemove: function () {\n\t\tthis._renderer._removePath(this);\n\t},\n\n\t// @method redraw(): this\n\t// Redraws the layer. Sometimes useful after you changed the coordinates that the path uses.\n\tredraw: function () {\n\t\tif (this._map) {\n\t\t\tthis._renderer._updatePath(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method setStyle(style: Path options): this\n\t// Changes the appearance of a Path based on the options in the `Path options` object.\n\tsetStyle: function (style) {\n\t\tL.setOptions(this, style);\n\t\tif (this._renderer) {\n\t\t\tthis._renderer._updateStyle(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method bringToFront(): this\n\t// Brings the layer to the top of all path layers.\n\tbringToFront: function () {\n\t\tif (this._renderer) {\n\t\t\tthis._renderer._bringToFront(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method bringToBack(): this\n\t// Brings the layer to the bottom of all path layers.\n\tbringToBack: function () {\n\t\tif (this._renderer) {\n\t\t\tthis._renderer._bringToBack(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\tgetElement: function () {\n\t\treturn this._path;\n\t},\n\n\t_reset: function () {\n\t\t// defined in children classes\n\t\tthis._project();\n\t\tthis._update();\n\t},\n\n\t_clickTolerance: function () {\n\t\t// used when doing hit detection for Canvas layers\n\t\treturn (this.options.stroke ? this.options.weight / 2 : 0) + (L.Browser.touch ? 10 : 0);\n\t}\n});\n\n\n\n/*\r\n * @namespace LineUtil\r\n *\r\n * Various utility functions for polyine points processing, used by Leaflet internally to make polylines lightning-fast.\r\n */\r\n\r\nL.LineUtil = {\r\n\r\n\t// Simplify polyline with vertex reduction and Douglas-Peucker simplification.\r\n\t// Improves rendering performance dramatically by lessening the number of points to draw.\r\n\r\n\t// @function simplify(points: Point[], tolerance: Number): Point[]\r\n\t// Dramatically reduces the number of points in a polyline while retaining\r\n\t// its shape and returns a new array of simplified points, using the\r\n\t// [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm).\r\n\t// Used for a huge performance boost when processing/displaying Leaflet polylines for\r\n\t// each zoom level and also reducing visual noise. tolerance affects the amount of\r\n\t// simplification (lesser value means higher quality but slower and with more points).\r\n\t// Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/).\r\n\tsimplify: function (points, tolerance) {\r\n\t\tif (!tolerance || !points.length) {\r\n\t\t\treturn points.slice();\r\n\t\t}\r\n\r\n\t\tvar sqTolerance = tolerance * tolerance;\r\n\r\n\t\t// stage 1: vertex reduction\r\n\t\tpoints = this._reducePoints(points, sqTolerance);\r\n\r\n\t\t// stage 2: Douglas-Peucker simplification\r\n\t\tpoints = this._simplifyDP(points, sqTolerance);\r\n\r\n\t\treturn points;\r\n\t},\r\n\r\n\t// @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number\r\n\t// Returns the distance between point `p` and segment `p1` to `p2`.\r\n\tpointToSegmentDistance:  function (p, p1, p2) {\r\n\t\treturn Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));\r\n\t},\r\n\r\n\t// @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number\r\n\t// Returns the closest point from a point `p` on a segment `p1` to `p2`.\r\n\tclosestPointOnSegment: function (p, p1, p2) {\r\n\t\treturn this._sqClosestPointOnSegment(p, p1, p2);\r\n\t},\r\n\r\n\t// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm\r\n\t_simplifyDP: function (points, sqTolerance) {\r\n\r\n\t\tvar len = points.length,\r\n\t\t    ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,\r\n\t\t    markers = new ArrayConstructor(len);\r\n\r\n\t\tmarkers[0] = markers[len - 1] = 1;\r\n\r\n\t\tthis._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);\r\n\r\n\t\tvar i,\r\n\t\t    newPoints = [];\r\n\r\n\t\tfor (i = 0; i < len; i++) {\r\n\t\t\tif (markers[i]) {\r\n\t\t\t\tnewPoints.push(points[i]);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn newPoints;\r\n\t},\r\n\r\n\t_simplifyDPStep: function (points, markers, sqTolerance, first, last) {\r\n\r\n\t\tvar maxSqDist = 0,\r\n\t\t    index, i, sqDist;\r\n\r\n\t\tfor (i = first + 1; i <= last - 1; i++) {\r\n\t\t\tsqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);\r\n\r\n\t\t\tif (sqDist > maxSqDist) {\r\n\t\t\t\tindex = i;\r\n\t\t\t\tmaxSqDist = sqDist;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (maxSqDist > sqTolerance) {\r\n\t\t\tmarkers[index] = 1;\r\n\r\n\t\t\tthis._simplifyDPStep(points, markers, sqTolerance, first, index);\r\n\t\t\tthis._simplifyDPStep(points, markers, sqTolerance, index, last);\r\n\t\t}\r\n\t},\r\n\r\n\t// reduce points that are too close to each other to a single point\r\n\t_reducePoints: function (points, sqTolerance) {\r\n\t\tvar reducedPoints = [points[0]];\r\n\r\n\t\tfor (var i = 1, prev = 0, len = points.length; i < len; i++) {\r\n\t\t\tif (this._sqDist(points[i], points[prev]) > sqTolerance) {\r\n\t\t\t\treducedPoints.push(points[i]);\r\n\t\t\t\tprev = i;\r\n\t\t\t}\r\n\t\t}\r\n\t\tif (prev < len - 1) {\r\n\t\t\treducedPoints.push(points[len - 1]);\r\n\t\t}\r\n\t\treturn reducedPoints;\r\n\t},\r\n\r\n\r\n\t// @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean\r\n\t// Clips the segment a to b by rectangular bounds with the\r\n\t// [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm)\r\n\t// (modifying the segment points directly!). Used by Leaflet to only show polyline\r\n\t// points that are on the screen or near, increasing performance.\r\n\tclipSegment: function (a, b, bounds, useLastCode, round) {\r\n\t\tvar codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),\r\n\t\t    codeB = this._getBitCode(b, bounds),\r\n\r\n\t\t    codeOut, p, newCode;\r\n\r\n\t\t// save 2nd code to avoid calculating it on the next segment\r\n\t\tthis._lastCode = codeB;\r\n\r\n\t\twhile (true) {\r\n\t\t\t// if a,b is inside the clip window (trivial accept)\r\n\t\t\tif (!(codeA | codeB)) {\r\n\t\t\t\treturn [a, b];\r\n\t\t\t}\r\n\r\n\t\t\t// if a,b is outside the clip window (trivial reject)\r\n\t\t\tif (codeA & codeB) {\r\n\t\t\t\treturn false;\r\n\t\t\t}\r\n\r\n\t\t\t// other cases\r\n\t\t\tcodeOut = codeA || codeB;\r\n\t\t\tp = this._getEdgeIntersection(a, b, codeOut, bounds, round);\r\n\t\t\tnewCode = this._getBitCode(p, bounds);\r\n\r\n\t\t\tif (codeOut === codeA) {\r\n\t\t\t\ta = p;\r\n\t\t\t\tcodeA = newCode;\r\n\t\t\t} else {\r\n\t\t\t\tb = p;\r\n\t\t\t\tcodeB = newCode;\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t_getEdgeIntersection: function (a, b, code, bounds, round) {\r\n\t\tvar dx = b.x - a.x,\r\n\t\t    dy = b.y - a.y,\r\n\t\t    min = bounds.min,\r\n\t\t    max = bounds.max,\r\n\t\t    x, y;\r\n\r\n\t\tif (code & 8) { // top\r\n\t\t\tx = a.x + dx * (max.y - a.y) / dy;\r\n\t\t\ty = max.y;\r\n\r\n\t\t} else if (code & 4) { // bottom\r\n\t\t\tx = a.x + dx * (min.y - a.y) / dy;\r\n\t\t\ty = min.y;\r\n\r\n\t\t} else if (code & 2) { // right\r\n\t\t\tx = max.x;\r\n\t\t\ty = a.y + dy * (max.x - a.x) / dx;\r\n\r\n\t\t} else if (code & 1) { // left\r\n\t\t\tx = min.x;\r\n\t\t\ty = a.y + dy * (min.x - a.x) / dx;\r\n\t\t}\r\n\r\n\t\treturn new L.Point(x, y, round);\r\n\t},\r\n\r\n\t_getBitCode: function (p, bounds) {\r\n\t\tvar code = 0;\r\n\r\n\t\tif (p.x < bounds.min.x) { // left\r\n\t\t\tcode |= 1;\r\n\t\t} else if (p.x > bounds.max.x) { // right\r\n\t\t\tcode |= 2;\r\n\t\t}\r\n\r\n\t\tif (p.y < bounds.min.y) { // bottom\r\n\t\t\tcode |= 4;\r\n\t\t} else if (p.y > bounds.max.y) { // top\r\n\t\t\tcode |= 8;\r\n\t\t}\r\n\r\n\t\treturn code;\r\n\t},\r\n\r\n\t// square distance (to avoid unnecessary Math.sqrt calls)\r\n\t_sqDist: function (p1, p2) {\r\n\t\tvar dx = p2.x - p1.x,\r\n\t\t    dy = p2.y - p1.y;\r\n\t\treturn dx * dx + dy * dy;\r\n\t},\r\n\r\n\t// return closest point on segment or distance to that point\r\n\t_sqClosestPointOnSegment: function (p, p1, p2, sqDist) {\r\n\t\tvar x = p1.x,\r\n\t\t    y = p1.y,\r\n\t\t    dx = p2.x - x,\r\n\t\t    dy = p2.y - y,\r\n\t\t    dot = dx * dx + dy * dy,\r\n\t\t    t;\r\n\r\n\t\tif (dot > 0) {\r\n\t\t\tt = ((p.x - x) * dx + (p.y - y) * dy) / dot;\r\n\r\n\t\t\tif (t > 1) {\r\n\t\t\t\tx = p2.x;\r\n\t\t\t\ty = p2.y;\r\n\t\t\t} else if (t > 0) {\r\n\t\t\t\tx += dx * t;\r\n\t\t\t\ty += dy * t;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tdx = p.x - x;\r\n\t\tdy = p.y - y;\r\n\r\n\t\treturn sqDist ? dx * dx + dy * dy : new L.Point(x, y);\r\n\t}\r\n};\r\n\n\n\n/*\n * @class Polyline\n * @aka L.Polyline\n * @inherits Path\n *\n * A class for drawing polyline overlays on a map. Extends `Path`.\n *\n * @example\n *\n * ```js\n * // create a red polyline from an array of LatLng points\n * var latlngs = [\n * \t[45.51, -122.68],\n * \t[37.77, -122.43],\n * \t[34.04, -118.2]\n * ];\n *\n * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map);\n *\n * // zoom the map to the polyline\n * map.fitBounds(polyline.getBounds());\n * ```\n *\n * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape:\n *\n * ```js\n * // create a red polyline from an array of arrays of LatLng points\n * var latlngs = [\n * \t[[45.51, -122.68],\n * \t [37.77, -122.43],\n * \t [34.04, -118.2]],\n * \t[[40.78, -73.91],\n * \t [41.83, -87.62],\n * \t [32.76, -96.72]]\n * ];\n * ```\n */\n\nL.Polyline = L.Path.extend({\n\n\t// @section\n\t// @aka Polyline options\n\toptions: {\n\t\t// @option smoothFactor: Number = 1.0\n\t\t// How much to simplify the polyline on each zoom level. More means\n\t\t// better performance and smoother look, and less means more accurate representation.\n\t\tsmoothFactor: 1.0,\n\n\t\t// @option noClip: Boolean = false\n\t\t// Disable polyline clipping.\n\t\tnoClip: false\n\t},\n\n\tinitialize: function (latlngs, options) {\n\t\tL.setOptions(this, options);\n\t\tthis._setLatLngs(latlngs);\n\t},\n\n\t// @method getLatLngs(): LatLng[]\n\t// Returns an array of the points in the path, or nested arrays of points in case of multi-polyline.\n\tgetLatLngs: function () {\n\t\treturn this._latlngs;\n\t},\n\n\t// @method setLatLngs(latlngs: LatLng[]): this\n\t// Replaces all the points in the polyline with the given array of geographical points.\n\tsetLatLngs: function (latlngs) {\n\t\tthis._setLatLngs(latlngs);\n\t\treturn this.redraw();\n\t},\n\n\t// @method isEmpty(): Boolean\n\t// Returns `true` if the Polyline has no LatLngs.\n\tisEmpty: function () {\n\t\treturn !this._latlngs.length;\n\t},\n\n\tclosestLayerPoint: function (p) {\n\t\tvar minDistance = Infinity,\n\t\t    minPoint = null,\n\t\t    closest = L.LineUtil._sqClosestPointOnSegment,\n\t\t    p1, p2;\n\n\t\tfor (var j = 0, jLen = this._parts.length; j < jLen; j++) {\n\t\t\tvar points = this._parts[j];\n\n\t\t\tfor (var i = 1, len = points.length; i < len; i++) {\n\t\t\t\tp1 = points[i - 1];\n\t\t\t\tp2 = points[i];\n\n\t\t\t\tvar sqDist = closest(p, p1, p2, true);\n\n\t\t\t\tif (sqDist < minDistance) {\n\t\t\t\t\tminDistance = sqDist;\n\t\t\t\t\tminPoint = closest(p, p1, p2);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (minPoint) {\n\t\t\tminPoint.distance = Math.sqrt(minDistance);\n\t\t}\n\t\treturn minPoint;\n\t},\n\n\t// @method getCenter(): LatLng\n\t// Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline.\n\tgetCenter: function () {\n\t\t// throws error when not yet added to map as this center calculation requires projected coordinates\n\t\tif (!this._map) {\n\t\t\tthrow new Error('Must add layer to map before using getCenter()');\n\t\t}\n\n\t\tvar i, halfDist, segDist, dist, p1, p2, ratio,\n\t\t    points = this._rings[0],\n\t\t    len = points.length;\n\n\t\tif (!len) { return null; }\n\n\t\t// polyline centroid algorithm; only uses the first ring if there are multiple\n\n\t\tfor (i = 0, halfDist = 0; i < len - 1; i++) {\n\t\t\thalfDist += points[i].distanceTo(points[i + 1]) / 2;\n\t\t}\n\n\t\t// The line is so small in the current view that all points are on the same pixel.\n\t\tif (halfDist === 0) {\n\t\t\treturn this._map.layerPointToLatLng(points[0]);\n\t\t}\n\n\t\tfor (i = 0, dist = 0; i < len - 1; i++) {\n\t\t\tp1 = points[i];\n\t\t\tp2 = points[i + 1];\n\t\t\tsegDist = p1.distanceTo(p2);\n\t\t\tdist += segDist;\n\n\t\t\tif (dist > halfDist) {\n\t\t\t\tratio = (dist - halfDist) / segDist;\n\t\t\t\treturn this._map.layerPointToLatLng([\n\t\t\t\t\tp2.x - ratio * (p2.x - p1.x),\n\t\t\t\t\tp2.y - ratio * (p2.y - p1.y)\n\t\t\t\t]);\n\t\t\t}\n\t\t}\n\t},\n\n\t// @method getBounds(): LatLngBounds\n\t// Returns the `LatLngBounds` of the path.\n\tgetBounds: function () {\n\t\treturn this._bounds;\n\t},\n\n\t// @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this\n\t// Adds a given point to the polyline. By default, adds to the first ring of\n\t// the polyline in case of a multi-polyline, but can be overridden by passing\n\t// a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)).\n\taddLatLng: function (latlng, latlngs) {\n\t\tlatlngs = latlngs || this._defaultShape();\n\t\tlatlng = L.latLng(latlng);\n\t\tlatlngs.push(latlng);\n\t\tthis._bounds.extend(latlng);\n\t\treturn this.redraw();\n\t},\n\n\t_setLatLngs: function (latlngs) {\n\t\tthis._bounds = new L.LatLngBounds();\n\t\tthis._latlngs = this._convertLatLngs(latlngs);\n\t},\n\n\t_defaultShape: function () {\n\t\treturn L.Polyline._flat(this._latlngs) ? this._latlngs : this._latlngs[0];\n\t},\n\n\t// recursively convert latlngs input into actual LatLng instances; calculate bounds along the way\n\t_convertLatLngs: function (latlngs) {\n\t\tvar result = [],\n\t\t    flat = L.Polyline._flat(latlngs);\n\n\t\tfor (var i = 0, len = latlngs.length; i < len; i++) {\n\t\t\tif (flat) {\n\t\t\t\tresult[i] = L.latLng(latlngs[i]);\n\t\t\t\tthis._bounds.extend(result[i]);\n\t\t\t} else {\n\t\t\t\tresult[i] = this._convertLatLngs(latlngs[i]);\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t},\n\n\t_project: function () {\n\t\tvar pxBounds = new L.Bounds();\n\t\tthis._rings = [];\n\t\tthis._projectLatlngs(this._latlngs, this._rings, pxBounds);\n\n\t\tvar w = this._clickTolerance(),\n\t\t    p = new L.Point(w, w);\n\n\t\tif (this._bounds.isValid() && pxBounds.isValid()) {\n\t\t\tpxBounds.min._subtract(p);\n\t\t\tpxBounds.max._add(p);\n\t\t\tthis._pxBounds = pxBounds;\n\t\t}\n\t},\n\n\t// recursively turns latlngs into a set of rings with projected coordinates\n\t_projectLatlngs: function (latlngs, result, projectedBounds) {\n\t\tvar flat = latlngs[0] instanceof L.LatLng,\n\t\t    len = latlngs.length,\n\t\t    i, ring;\n\n\t\tif (flat) {\n\t\t\tring = [];\n\t\t\tfor (i = 0; i < len; i++) {\n\t\t\t\tring[i] = this._map.latLngToLayerPoint(latlngs[i]);\n\t\t\t\tprojectedBounds.extend(ring[i]);\n\t\t\t}\n\t\t\tresult.push(ring);\n\t\t} else {\n\t\t\tfor (i = 0; i < len; i++) {\n\t\t\t\tthis._projectLatlngs(latlngs[i], result, projectedBounds);\n\t\t\t}\n\t\t}\n\t},\n\n\t// clip polyline by renderer bounds so that we have less to render for performance\n\t_clipPoints: function () {\n\t\tvar bounds = this._renderer._bounds;\n\n\t\tthis._parts = [];\n\t\tif (!this._pxBounds || !this._pxBounds.intersects(bounds)) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (this.options.noClip) {\n\t\t\tthis._parts = this._rings;\n\t\t\treturn;\n\t\t}\n\n\t\tvar parts = this._parts,\n\t\t    i, j, k, len, len2, segment, points;\n\n\t\tfor (i = 0, k = 0, len = this._rings.length; i < len; i++) {\n\t\t\tpoints = this._rings[i];\n\n\t\t\tfor (j = 0, len2 = points.length; j < len2 - 1; j++) {\n\t\t\t\tsegment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j, true);\n\n\t\t\t\tif (!segment) { continue; }\n\n\t\t\t\tparts[k] = parts[k] || [];\n\t\t\t\tparts[k].push(segment[0]);\n\n\t\t\t\t// if segment goes out of screen, or it's the last one, it's the end of the line part\n\t\t\t\tif ((segment[1] !== points[j + 1]) || (j === len2 - 2)) {\n\t\t\t\t\tparts[k].push(segment[1]);\n\t\t\t\t\tk++;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t// simplify each clipped part of the polyline for performance\n\t_simplifyPoints: function () {\n\t\tvar parts = this._parts,\n\t\t    tolerance = this.options.smoothFactor;\n\n\t\tfor (var i = 0, len = parts.length; i < len; i++) {\n\t\t\tparts[i] = L.LineUtil.simplify(parts[i], tolerance);\n\t\t}\n\t},\n\n\t_update: function () {\n\t\tif (!this._map) { return; }\n\n\t\tthis._clipPoints();\n\t\tthis._simplifyPoints();\n\t\tthis._updatePath();\n\t},\n\n\t_updatePath: function () {\n\t\tthis._renderer._updatePoly(this);\n\t}\n});\n\n// @factory L.polyline(latlngs: LatLng[], options?: Polyline options)\n// Instantiates a polyline object given an array of geographical points and\n// optionally an options object. You can create a `Polyline` object with\n// multiple separate lines (`MultiPolyline`) by passing an array of arrays\n// of geographic points.\nL.polyline = function (latlngs, options) {\n\treturn new L.Polyline(latlngs, options);\n};\n\nL.Polyline._flat = function (latlngs) {\n\t// true if it's a flat array of latlngs; false if nested\n\treturn !L.Util.isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined');\n};\n\n\n\n/*\r\n * @namespace PolyUtil\r\n * Various utility functions for polygon geometries.\r\n */\r\n\r\nL.PolyUtil = {};\r\n\r\n/* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[]\r\n * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgeman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)).\r\n * Used by Leaflet to only show polygon points that are on the screen or near, increasing\r\n * performance. Note that polygon points needs different algorithm for clipping\r\n * than polyline, so there's a seperate method for it.\r\n */\r\nL.PolyUtil.clipPolygon = function (points, bounds, round) {\r\n\tvar clippedPoints,\r\n\t    edges = [1, 4, 2, 8],\r\n\t    i, j, k,\r\n\t    a, b,\r\n\t    len, edge, p,\r\n\t    lu = L.LineUtil;\r\n\r\n\tfor (i = 0, len = points.length; i < len; i++) {\r\n\t\tpoints[i]._code = lu._getBitCode(points[i], bounds);\r\n\t}\r\n\r\n\t// for each edge (left, bottom, right, top)\r\n\tfor (k = 0; k < 4; k++) {\r\n\t\tedge = edges[k];\r\n\t\tclippedPoints = [];\r\n\r\n\t\tfor (i = 0, len = points.length, j = len - 1; i < len; j = i++) {\r\n\t\t\ta = points[i];\r\n\t\t\tb = points[j];\r\n\r\n\t\t\t// if a is inside the clip window\r\n\t\t\tif (!(a._code & edge)) {\r\n\t\t\t\t// if b is outside the clip window (a->b goes out of screen)\r\n\t\t\t\tif (b._code & edge) {\r\n\t\t\t\t\tp = lu._getEdgeIntersection(b, a, edge, bounds, round);\r\n\t\t\t\t\tp._code = lu._getBitCode(p, bounds);\r\n\t\t\t\t\tclippedPoints.push(p);\r\n\t\t\t\t}\r\n\t\t\t\tclippedPoints.push(a);\r\n\r\n\t\t\t// else if b is inside the clip window (a->b enters the screen)\r\n\t\t\t} else if (!(b._code & edge)) {\r\n\t\t\t\tp = lu._getEdgeIntersection(b, a, edge, bounds, round);\r\n\t\t\t\tp._code = lu._getBitCode(p, bounds);\r\n\t\t\t\tclippedPoints.push(p);\r\n\t\t\t}\r\n\t\t}\r\n\t\tpoints = clippedPoints;\r\n\t}\r\n\r\n\treturn points;\r\n};\r\n\n\n\n/*\n * @class Polygon\n * @aka L.Polygon\n * @inherits Polyline\n *\n * A class for drawing polygon overlays on a map. Extends `Polyline`.\n *\n * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points.\n *\n *\n * @example\n *\n * ```js\n * // create a red polygon from an array of LatLng points\n * var latlngs = [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]];\n *\n * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map);\n *\n * // zoom the map to the polygon\n * map.fitBounds(polygon.getBounds());\n * ```\n *\n * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape:\n *\n * ```js\n * var latlngs = [\n *   [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring\n *   [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole\n * ];\n * ```\n *\n * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape.\n *\n * ```js\n * var latlngs = [\n *   [ // first polygon\n *     [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring\n *     [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole\n *   ],\n *   [ // second polygon\n *     [[41, -111.03],[45, -111.04],[45, -104.05],[41, -104.05]]\n *   ]\n * ];\n * ```\n */\n\nL.Polygon = L.Polyline.extend({\n\n\toptions: {\n\t\tfill: true\n\t},\n\n\tisEmpty: function () {\n\t\treturn !this._latlngs.length || !this._latlngs[0].length;\n\t},\n\n\tgetCenter: function () {\n\t\t// throws error when not yet added to map as this center calculation requires projected coordinates\n\t\tif (!this._map) {\n\t\t\tthrow new Error('Must add layer to map before using getCenter()');\n\t\t}\n\n\t\tvar i, j, p1, p2, f, area, x, y, center,\n\t\t    points = this._rings[0],\n\t\t    len = points.length;\n\n\t\tif (!len) { return null; }\n\n\t\t// polygon centroid algorithm; only uses the first ring if there are multiple\n\n\t\tarea = x = y = 0;\n\n\t\tfor (i = 0, j = len - 1; i < len; j = i++) {\n\t\t\tp1 = points[i];\n\t\t\tp2 = points[j];\n\n\t\t\tf = p1.y * p2.x - p2.y * p1.x;\n\t\t\tx += (p1.x + p2.x) * f;\n\t\t\ty += (p1.y + p2.y) * f;\n\t\t\tarea += f * 3;\n\t\t}\n\n\t\tif (area === 0) {\n\t\t\t// Polygon is so small that all points are on same pixel.\n\t\t\tcenter = points[0];\n\t\t} else {\n\t\t\tcenter = [x / area, y / area];\n\t\t}\n\t\treturn this._map.layerPointToLatLng(center);\n\t},\n\n\t_convertLatLngs: function (latlngs) {\n\t\tvar result = L.Polyline.prototype._convertLatLngs.call(this, latlngs),\n\t\t    len = result.length;\n\n\t\t// remove last point if it equals first one\n\t\tif (len >= 2 && result[0] instanceof L.LatLng && result[0].equals(result[len - 1])) {\n\t\t\tresult.pop();\n\t\t}\n\t\treturn result;\n\t},\n\n\t_setLatLngs: function (latlngs) {\n\t\tL.Polyline.prototype._setLatLngs.call(this, latlngs);\n\t\tif (L.Polyline._flat(this._latlngs)) {\n\t\t\tthis._latlngs = [this._latlngs];\n\t\t}\n\t},\n\n\t_defaultShape: function () {\n\t\treturn L.Polyline._flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0];\n\t},\n\n\t_clipPoints: function () {\n\t\t// polygons need a different clipping algorithm so we redefine that\n\n\t\tvar bounds = this._renderer._bounds,\n\t\t    w = this.options.weight,\n\t\t    p = new L.Point(w, w);\n\n\t\t// increase clip padding by stroke width to avoid stroke on clip edges\n\t\tbounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p));\n\n\t\tthis._parts = [];\n\t\tif (!this._pxBounds || !this._pxBounds.intersects(bounds)) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (this.options.noClip) {\n\t\t\tthis._parts = this._rings;\n\t\t\treturn;\n\t\t}\n\n\t\tfor (var i = 0, len = this._rings.length, clipped; i < len; i++) {\n\t\t\tclipped = L.PolyUtil.clipPolygon(this._rings[i], bounds, true);\n\t\t\tif (clipped.length) {\n\t\t\t\tthis._parts.push(clipped);\n\t\t\t}\n\t\t}\n\t},\n\n\t_updatePath: function () {\n\t\tthis._renderer._updatePoly(this, true);\n\t}\n});\n\n\n// @factory L.polygon(latlngs: LatLng[], options?: Polyline options)\nL.polygon = function (latlngs, options) {\n\treturn new L.Polygon(latlngs, options);\n};\n\n\n\n/*\n * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.\n */\n\n/*\n * @class Rectangle\n * @aka L.Retangle\n * @inherits Polygon\n *\n * A class for drawing rectangle overlays on a map. Extends `Polygon`.\n *\n * @example\n *\n * ```js\n * // define rectangle geographical bounds\n * var bounds = [[54.559322, -5.767822], [56.1210604, -3.021240]];\n *\n * // create an orange rectangle\n * L.rectangle(bounds, {color: \"#ff7800\", weight: 1}).addTo(map);\n *\n * // zoom the map to the rectangle bounds\n * map.fitBounds(bounds);\n * ```\n *\n */\n\n\nL.Rectangle = L.Polygon.extend({\n\tinitialize: function (latLngBounds, options) {\n\t\tL.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);\n\t},\n\n\t// @method setBounds(latLngBounds: LatLngBounds): this\n\t// Redraws the rectangle with the passed bounds.\n\tsetBounds: function (latLngBounds) {\n\t\treturn this.setLatLngs(this._boundsToLatLngs(latLngBounds));\n\t},\n\n\t_boundsToLatLngs: function (latLngBounds) {\n\t\tlatLngBounds = L.latLngBounds(latLngBounds);\n\t\treturn [\n\t\t\tlatLngBounds.getSouthWest(),\n\t\t\tlatLngBounds.getNorthWest(),\n\t\t\tlatLngBounds.getNorthEast(),\n\t\t\tlatLngBounds.getSouthEast()\n\t\t];\n\t}\n});\n\n\n// @factory L.rectangle(latLngBounds: LatLngBounds, options?: Polyline options)\nL.rectangle = function (latLngBounds, options) {\n\treturn new L.Rectangle(latLngBounds, options);\n};\n\n\n\n/*\n * @class CircleMarker\n * @aka L.CircleMarker\n * @inherits Path\n *\n * A circle of a fixed size with radius specified in pixels. Extends `Path`.\n */\n\nL.CircleMarker = L.Path.extend({\n\n\t// @section\n\t// @aka CircleMarker options\n\toptions: {\n\t\tfill: true,\n\n\t\t// @option radius: Number = 10\n\t\t// Radius of the circle marker, in pixels\n\t\tradius: 10\n\t},\n\n\tinitialize: function (latlng, options) {\n\t\tL.setOptions(this, options);\n\t\tthis._latlng = L.latLng(latlng);\n\t\tthis._radius = this.options.radius;\n\t},\n\n\t// @method setLatLng(latLng: LatLng): this\n\t// Sets the position of a circle marker to a new location.\n\tsetLatLng: function (latlng) {\n\t\tthis._latlng = L.latLng(latlng);\n\t\tthis.redraw();\n\t\treturn this.fire('move', {latlng: this._latlng});\n\t},\n\n\t// @method getLatLng(): LatLng\n\t// Returns the current geographical position of the circle marker\n\tgetLatLng: function () {\n\t\treturn this._latlng;\n\t},\n\n\t// @method setRadius(radius: Number): this\n\t// Sets the radius of a circle marker. Units are in pixels.\n\tsetRadius: function (radius) {\n\t\tthis.options.radius = this._radius = radius;\n\t\treturn this.redraw();\n\t},\n\n\t// @method getRadius(): Number\n\t// Returns the current radius of the circle\n\tgetRadius: function () {\n\t\treturn this._radius;\n\t},\n\n\tsetStyle : function (options) {\n\t\tvar radius = options && options.radius || this._radius;\n\t\tL.Path.prototype.setStyle.call(this, options);\n\t\tthis.setRadius(radius);\n\t\treturn this;\n\t},\n\n\t_project: function () {\n\t\tthis._point = this._map.latLngToLayerPoint(this._latlng);\n\t\tthis._updateBounds();\n\t},\n\n\t_updateBounds: function () {\n\t\tvar r = this._radius,\n\t\t    r2 = this._radiusY || r,\n\t\t    w = this._clickTolerance(),\n\t\t    p = [r + w, r2 + w];\n\t\tthis._pxBounds = new L.Bounds(this._point.subtract(p), this._point.add(p));\n\t},\n\n\t_update: function () {\n\t\tif (this._map) {\n\t\t\tthis._updatePath();\n\t\t}\n\t},\n\n\t_updatePath: function () {\n\t\tthis._renderer._updateCircle(this);\n\t},\n\n\t_empty: function () {\n\t\treturn this._radius && !this._renderer._bounds.intersects(this._pxBounds);\n\t}\n});\n\n\n// @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options)\n// Instantiates a circle marker object given a geographical point, and an optional options object.\nL.circleMarker = function (latlng, options) {\n\treturn new L.CircleMarker(latlng, options);\n};\n\n\n\n/*\n * @class Circle\n * @aka L.Circle\n * @inherits CircleMarker\n *\n * A class for drawing circle overlays on a map. Extends `CircleMarker`.\n *\n * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion).\n *\n * @example\n *\n * ```js\n * L.circle([50.5, 30.5], {radius: 200}).addTo(map);\n * ```\n */\n\nL.Circle = L.CircleMarker.extend({\n\n\tinitialize: function (latlng, options, legacyOptions) {\n\t\tif (typeof options === 'number') {\n\t\t\t// Backwards compatibility with 0.7.x factory (latlng, radius, options?)\n\t\t\toptions = L.extend({}, legacyOptions, {radius: options});\n\t\t}\n\t\tL.setOptions(this, options);\n\t\tthis._latlng = L.latLng(latlng);\n\n\t\tif (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); }\n\n\t\t// @section\n\t\t// @aka Circle options\n\t\t// @option radius: Number; Radius of the circle, in meters.\n\t\tthis._mRadius = this.options.radius;\n\t},\n\n\t// @method setRadius(radius: Number): this\n\t// Sets the radius of a circle. Units are in meters.\n\tsetRadius: function (radius) {\n\t\tthis._mRadius = radius;\n\t\treturn this.redraw();\n\t},\n\n\t// @method getRadius(): Number\n\t// Returns the current radius of a circle. Units are in meters.\n\tgetRadius: function () {\n\t\treturn this._mRadius;\n\t},\n\n\t// @method getBounds(): LatLngBounds\n\t// Returns the `LatLngBounds` of the path.\n\tgetBounds: function () {\n\t\tvar half = [this._radius, this._radiusY || this._radius];\n\n\t\treturn new L.LatLngBounds(\n\t\t\tthis._map.layerPointToLatLng(this._point.subtract(half)),\n\t\t\tthis._map.layerPointToLatLng(this._point.add(half)));\n\t},\n\n\tsetStyle: L.Path.prototype.setStyle,\n\n\t_project: function () {\n\n\t\tvar lng = this._latlng.lng,\n\t\t    lat = this._latlng.lat,\n\t\t    map = this._map,\n\t\t    crs = map.options.crs;\n\n\t\tif (crs.distance === L.CRS.Earth.distance) {\n\t\t\tvar d = Math.PI / 180,\n\t\t\t    latR = (this._mRadius / L.CRS.Earth.R) / d,\n\t\t\t    top = map.project([lat + latR, lng]),\n\t\t\t    bottom = map.project([lat - latR, lng]),\n\t\t\t    p = top.add(bottom).divideBy(2),\n\t\t\t    lat2 = map.unproject(p).lat,\n\t\t\t    lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) /\n\t\t\t            (Math.cos(lat * d) * Math.cos(lat2 * d))) / d;\n\n\t\t\tif (isNaN(lngR) || lngR === 0) {\n\t\t\t\tlngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425\n\t\t\t}\n\n\t\t\tthis._point = p.subtract(map.getPixelOrigin());\n\t\t\tthis._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1);\n\t\t\tthis._radiusY = Math.max(Math.round(p.y - top.y), 1);\n\n\t\t} else {\n\t\t\tvar latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));\n\n\t\t\tthis._point = map.latLngToLayerPoint(this._latlng);\n\t\t\tthis._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;\n\t\t}\n\n\t\tthis._updateBounds();\n\t}\n});\n\n// @factory L.circle(latlng: LatLng, options?: Circle options)\n// Instantiates a circle object given a geographical point, and an options object\n// which contains the circle radius.\n// @alternative\n// @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options)\n// Obsolete way of instantiating a circle, for compatibility with 0.7.x code.\n// Do not use in new applications or plugins.\nL.circle = function (latlng, options, legacyOptions) {\n\treturn new L.Circle(latlng, options, legacyOptions);\n};\n\n\n\n/*\n * @class SVG\n * @inherits Renderer\n * @aka L.SVG\n *\n * Allows vector layers to be displayed with [SVG](https://developer.mozilla.org/docs/Web/SVG).\n * Inherits `Renderer`.\n *\n * Due to [technical limitations](http://caniuse.com/#search=svg), SVG is not\n * available in all web browsers, notably Android 2.x and 3.x.\n *\n * Although SVG is not available on IE7 and IE8, these browsers support\n * [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language)\n * (a now deprecated technology), and the SVG renderer will fall back to VML in\n * this case.\n *\n * @example\n *\n * Use SVG by default for all paths in the map:\n *\n * ```js\n * var map = L.map('map', {\n * \trenderer: L.svg()\n * });\n * ```\n *\n * Use a SVG renderer with extra padding for specific vector geometries:\n *\n * ```js\n * var map = L.map('map');\n * var myRenderer = L.svg({ padding: 0.5 });\n * var line = L.polyline( coordinates, { renderer: myRenderer } );\n * var circle = L.circle( center, { renderer: myRenderer } );\n * ```\n */\n\nL.SVG = L.Renderer.extend({\n\n\tgetEvents: function () {\n\t\tvar events = L.Renderer.prototype.getEvents.call(this);\n\t\tevents.zoomstart = this._onZoomStart;\n\t\treturn events;\n\t},\n\n\t_initContainer: function () {\n\t\tthis._container = L.SVG.create('svg');\n\n\t\t// makes it possible to click through svg root; we'll reset it back in individual paths\n\t\tthis._container.setAttribute('pointer-events', 'none');\n\n\t\tthis._rootGroup = L.SVG.create('g');\n\t\tthis._container.appendChild(this._rootGroup);\n\t},\n\n\t_onZoomStart: function () {\n\t\t// Drag-then-pinch interactions might mess up the center and zoom.\n\t\t// In this case, the easiest way to prevent this is re-do the renderer\n\t\t//   bounds and padding when the zooming starts.\n\t\tthis._update();\n\t},\n\n\t_update: function () {\n\t\tif (this._map._animatingZoom && this._bounds) { return; }\n\n\t\tL.Renderer.prototype._update.call(this);\n\n\t\tvar b = this._bounds,\n\t\t    size = b.getSize(),\n\t\t    container = this._container;\n\n\t\t// set size of svg-container if changed\n\t\tif (!this._svgSize || !this._svgSize.equals(size)) {\n\t\t\tthis._svgSize = size;\n\t\t\tcontainer.setAttribute('width', size.x);\n\t\t\tcontainer.setAttribute('height', size.y);\n\t\t}\n\n\t\t// movement: update container viewBox so that we don't have to change coordinates of individual layers\n\t\tL.DomUtil.setPosition(container, b.min);\n\t\tcontainer.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' '));\n\n\t\tthis.fire('update');\n\t},\n\n\t// methods below are called by vector layers implementations\n\n\t_initPath: function (layer) {\n\t\tvar path = layer._path = L.SVG.create('path');\n\n\t\t// @namespace Path\n\t\t// @option className: String = null\n\t\t// Custom class name set on an element. Only for SVG renderer.\n\t\tif (layer.options.className) {\n\t\t\tL.DomUtil.addClass(path, layer.options.className);\n\t\t}\n\n\t\tif (layer.options.interactive) {\n\t\t\tL.DomUtil.addClass(path, 'leaflet-interactive');\n\t\t}\n\n\t\tthis._updateStyle(layer);\n\t\tthis._layers[L.stamp(layer)] = layer;\n\t},\n\n\t_addPath: function (layer) {\n\t\tthis._rootGroup.appendChild(layer._path);\n\t\tlayer.addInteractiveTarget(layer._path);\n\t},\n\n\t_removePath: function (layer) {\n\t\tL.DomUtil.remove(layer._path);\n\t\tlayer.removeInteractiveTarget(layer._path);\n\t\tdelete this._layers[L.stamp(layer)];\n\t},\n\n\t_updatePath: function (layer) {\n\t\tlayer._project();\n\t\tlayer._update();\n\t},\n\n\t_updateStyle: function (layer) {\n\t\tvar path = layer._path,\n\t\t    options = layer.options;\n\n\t\tif (!path) { return; }\n\n\t\tif (options.stroke) {\n\t\t\tpath.setAttribute('stroke', options.color);\n\t\t\tpath.setAttribute('stroke-opacity', options.opacity);\n\t\t\tpath.setAttribute('stroke-width', options.weight);\n\t\t\tpath.setAttribute('stroke-linecap', options.lineCap);\n\t\t\tpath.setAttribute('stroke-linejoin', options.lineJoin);\n\n\t\t\tif (options.dashArray) {\n\t\t\t\tpath.setAttribute('stroke-dasharray', options.dashArray);\n\t\t\t} else {\n\t\t\t\tpath.removeAttribute('stroke-dasharray');\n\t\t\t}\n\n\t\t\tif (options.dashOffset) {\n\t\t\t\tpath.setAttribute('stroke-dashoffset', options.dashOffset);\n\t\t\t} else {\n\t\t\t\tpath.removeAttribute('stroke-dashoffset');\n\t\t\t}\n\t\t} else {\n\t\t\tpath.setAttribute('stroke', 'none');\n\t\t}\n\n\t\tif (options.fill) {\n\t\t\tpath.setAttribute('fill', options.fillColor || options.color);\n\t\t\tpath.setAttribute('fill-opacity', options.fillOpacity);\n\t\t\tpath.setAttribute('fill-rule', options.fillRule || 'evenodd');\n\t\t} else {\n\t\t\tpath.setAttribute('fill', 'none');\n\t\t}\n\t},\n\n\t_updatePoly: function (layer, closed) {\n\t\tthis._setPath(layer, L.SVG.pointsToPath(layer._parts, closed));\n\t},\n\n\t_updateCircle: function (layer) {\n\t\tvar p = layer._point,\n\t\t    r = layer._radius,\n\t\t    r2 = layer._radiusY || r,\n\t\t    arc = 'a' + r + ',' + r2 + ' 0 1,0 ';\n\n\t\t// drawing a circle with two half-arcs\n\t\tvar d = layer._empty() ? 'M0 0' :\n\t\t\t\t'M' + (p.x - r) + ',' + p.y +\n\t\t\t\tarc + (r * 2) + ',0 ' +\n\t\t\t\tarc + (-r * 2) + ',0 ';\n\n\t\tthis._setPath(layer, d);\n\t},\n\n\t_setPath: function (layer, path) {\n\t\tlayer._path.setAttribute('d', path);\n\t},\n\n\t// SVG does not have the concept of zIndex so we resort to changing the DOM order of elements\n\t_bringToFront: function (layer) {\n\t\tL.DomUtil.toFront(layer._path);\n\t},\n\n\t_bringToBack: function (layer) {\n\t\tL.DomUtil.toBack(layer._path);\n\t}\n});\n\n\n// @namespace SVG; @section\n// There are several static functions which can be called without instantiating L.SVG:\nL.extend(L.SVG, {\n\t// @function create(name: String): SVGElement\n\t// Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement),\n\t// corresponding to the class name passed. For example, using 'line' will return\n\t// an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement).\n\tcreate: function (name) {\n\t\treturn document.createElementNS('http://www.w3.org/2000/svg', name);\n\t},\n\n\t// @function pointsToPath(rings: Point[], closed: Boolean): String\n\t// Generates a SVG path string for multiple rings, with each ring turning\n\t// into \"M..L..L..\" instructions\n\tpointsToPath: function (rings, closed) {\n\t\tvar str = '',\n\t\t    i, j, len, len2, points, p;\n\n\t\tfor (i = 0, len = rings.length; i < len; i++) {\n\t\t\tpoints = rings[i];\n\n\t\t\tfor (j = 0, len2 = points.length; j < len2; j++) {\n\t\t\t\tp = points[j];\n\t\t\t\tstr += (j ? 'L' : 'M') + p.x + ' ' + p.y;\n\t\t\t}\n\n\t\t\t// closes the ring for polygons; \"x\" is VML syntax\n\t\t\tstr += closed ? (L.Browser.svg ? 'z' : 'x') : '';\n\t\t}\n\n\t\t// SVG complains about empty path strings\n\t\treturn str || 'M0 0';\n\t}\n});\n\n// @namespace Browser; @property svg: Boolean\n// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG).\nL.Browser.svg = !!(document.createElementNS && L.SVG.create('svg').createSVGRect);\n\n\n// @namespace SVG\n// @factory L.svg(options?: Renderer options)\n// Creates a SVG renderer with the given options.\nL.svg = function (options) {\n\treturn L.Browser.svg || L.Browser.vml ? new L.SVG(options) : null;\n};\n\n\n\n/*\n * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!\n */\n\n/*\n * @class SVG\n *\n * Although SVG is not available on IE7 and IE8, these browsers support [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language), and the SVG renderer will fall back to VML in this case.\n *\n * VML was deprecated in 2012, which means VML functionality exists only for backwards compatibility\n * with old versions of Internet Explorer.\n */\n\n// @namespace Browser; @property vml: Boolean\n// `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language).\nL.Browser.vml = !L.Browser.svg && (function () {\n\ttry {\n\t\tvar div = document.createElement('div');\n\t\tdiv.innerHTML = '<v:shape adj=\"1\"/>';\n\n\t\tvar shape = div.firstChild;\n\t\tshape.style.behavior = 'url(#default#VML)';\n\n\t\treturn shape && (typeof shape.adj === 'object');\n\n\t} catch (e) {\n\t\treturn false;\n\t}\n}());\n\n// redefine some SVG methods to handle VML syntax which is similar but with some differences\nL.SVG.include(!L.Browser.vml ? {} : {\n\n\t_initContainer: function () {\n\t\tthis._container = L.DomUtil.create('div', 'leaflet-vml-container');\n\t},\n\n\t_update: function () {\n\t\tif (this._map._animatingZoom) { return; }\n\t\tL.Renderer.prototype._update.call(this);\n\t\tthis.fire('update');\n\t},\n\n\t_initPath: function (layer) {\n\t\tvar container = layer._container = L.SVG.create('shape');\n\n\t\tL.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));\n\n\t\tcontainer.coordsize = '1 1';\n\n\t\tlayer._path = L.SVG.create('path');\n\t\tcontainer.appendChild(layer._path);\n\n\t\tthis._updateStyle(layer);\n\t\tthis._layers[L.stamp(layer)] = layer;\n\t},\n\n\t_addPath: function (layer) {\n\t\tvar container = layer._container;\n\t\tthis._container.appendChild(container);\n\n\t\tif (layer.options.interactive) {\n\t\t\tlayer.addInteractiveTarget(container);\n\t\t}\n\t},\n\n\t_removePath: function (layer) {\n\t\tvar container = layer._container;\n\t\tL.DomUtil.remove(container);\n\t\tlayer.removeInteractiveTarget(container);\n\t\tdelete this._layers[L.stamp(layer)];\n\t},\n\n\t_updateStyle: function (layer) {\n\t\tvar stroke = layer._stroke,\n\t\t    fill = layer._fill,\n\t\t    options = layer.options,\n\t\t    container = layer._container;\n\n\t\tcontainer.stroked = !!options.stroke;\n\t\tcontainer.filled = !!options.fill;\n\n\t\tif (options.stroke) {\n\t\t\tif (!stroke) {\n\t\t\t\tstroke = layer._stroke = L.SVG.create('stroke');\n\t\t\t}\n\t\t\tcontainer.appendChild(stroke);\n\t\t\tstroke.weight = options.weight + 'px';\n\t\t\tstroke.color = options.color;\n\t\t\tstroke.opacity = options.opacity;\n\n\t\t\tif (options.dashArray) {\n\t\t\t\tstroke.dashStyle = L.Util.isArray(options.dashArray) ?\n\t\t\t\t    options.dashArray.join(' ') :\n\t\t\t\t    options.dashArray.replace(/( *, *)/g, ' ');\n\t\t\t} else {\n\t\t\t\tstroke.dashStyle = '';\n\t\t\t}\n\t\t\tstroke.endcap = options.lineCap.replace('butt', 'flat');\n\t\t\tstroke.joinstyle = options.lineJoin;\n\n\t\t} else if (stroke) {\n\t\t\tcontainer.removeChild(stroke);\n\t\t\tlayer._stroke = null;\n\t\t}\n\n\t\tif (options.fill) {\n\t\t\tif (!fill) {\n\t\t\t\tfill = layer._fill = L.SVG.create('fill');\n\t\t\t}\n\t\t\tcontainer.appendChild(fill);\n\t\t\tfill.color = options.fillColor || options.color;\n\t\t\tfill.opacity = options.fillOpacity;\n\n\t\t} else if (fill) {\n\t\t\tcontainer.removeChild(fill);\n\t\t\tlayer._fill = null;\n\t\t}\n\t},\n\n\t_updateCircle: function (layer) {\n\t\tvar p = layer._point.round(),\n\t\t    r = Math.round(layer._radius),\n\t\t    r2 = Math.round(layer._radiusY || r);\n\n\t\tthis._setPath(layer, layer._empty() ? 'M0 0' :\n\t\t\t\t'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360));\n\t},\n\n\t_setPath: function (layer, path) {\n\t\tlayer._path.v = path;\n\t},\n\n\t_bringToFront: function (layer) {\n\t\tL.DomUtil.toFront(layer._container);\n\t},\n\n\t_bringToBack: function (layer) {\n\t\tL.DomUtil.toBack(layer._container);\n\t}\n});\n\nif (L.Browser.vml) {\n\tL.SVG.create = (function () {\n\t\ttry {\n\t\t\tdocument.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');\n\t\t\treturn function (name) {\n\t\t\t\treturn document.createElement('<lvml:' + name + ' class=\"lvml\">');\n\t\t\t};\n\t\t} catch (e) {\n\t\t\treturn function (name) {\n\t\t\t\treturn document.createElement('<' + name + ' xmlns=\"urn:schemas-microsoft.com:vml\" class=\"lvml\">');\n\t\t\t};\n\t\t}\n\t})();\n}\n\n\n\n/*\n * @class Canvas\n * @inherits Renderer\n * @aka L.Canvas\n *\n * Allows vector layers to be displayed with [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).\n * Inherits `Renderer`.\n *\n * Due to [technical limitations](http://caniuse.com/#search=canvas), Canvas is not\n * available in all web browsers, notably IE8, and overlapping geometries might\n * not display properly in some edge cases.\n *\n * @example\n *\n * Use Canvas by default for all paths in the map:\n *\n * ```js\n * var map = L.map('map', {\n * \trenderer: L.canvas()\n * });\n * ```\n *\n * Use a Canvas renderer with extra padding for specific vector geometries:\n *\n * ```js\n * var map = L.map('map');\n * var myRenderer = L.canvas({ padding: 0.5 });\n * var line = L.polyline( coordinates, { renderer: myRenderer } );\n * var circle = L.circle( center, { renderer: myRenderer } );\n * ```\n */\n\nL.Canvas = L.Renderer.extend({\n\tgetEvents: function () {\n\t\tvar events = L.Renderer.prototype.getEvents.call(this);\n\t\tevents.viewprereset = this._onViewPreReset;\n\t\treturn events;\n\t},\n\n\t_onViewPreReset: function () {\n\t\t// Set a flag so that a viewprereset+moveend+viewreset only updates&redraws once\n\t\tthis._postponeUpdatePaths = true;\n\t},\n\n\tonAdd: function () {\n\t\tL.Renderer.prototype.onAdd.call(this);\n\n\t\t// Redraw vectors since canvas is cleared upon removal,\n\t\t// in case of removing the renderer itself from the map.\n\t\tthis._draw();\n\t},\n\n\t_initContainer: function () {\n\t\tvar container = this._container = document.createElement('canvas');\n\n\t\tL.DomEvent\n\t\t\t.on(container, 'mousemove', L.Util.throttle(this._onMouseMove, 32, this), this)\n\t\t\t.on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this)\n\t\t\t.on(container, 'mouseout', this._handleMouseOut, this);\n\n\t\tthis._ctx = container.getContext('2d');\n\t},\n\n\t_updatePaths: function () {\n\t\tif (this._postponeUpdatePaths) { return; }\n\n\t\tvar layer;\n\t\tthis._redrawBounds = null;\n\t\tfor (var id in this._layers) {\n\t\t\tlayer = this._layers[id];\n\t\t\tlayer._update();\n\t\t}\n\t\tthis._redraw();\n\t},\n\n\t_update: function () {\n\t\tif (this._map._animatingZoom && this._bounds) { return; }\n\n\t\tthis._drawnLayers = {};\n\n\t\tL.Renderer.prototype._update.call(this);\n\n\t\tvar b = this._bounds,\n\t\t    container = this._container,\n\t\t    size = b.getSize(),\n\t\t    m = L.Browser.retina ? 2 : 1;\n\n\t\tL.DomUtil.setPosition(container, b.min);\n\n\t\t// set canvas size (also clearing it); use double size on retina\n\t\tcontainer.width = m * size.x;\n\t\tcontainer.height = m * size.y;\n\t\tcontainer.style.width = size.x + 'px';\n\t\tcontainer.style.height = size.y + 'px';\n\n\t\tif (L.Browser.retina) {\n\t\t\tthis._ctx.scale(2, 2);\n\t\t}\n\n\t\t// translate so we use the same path coordinates after canvas element moves\n\t\tthis._ctx.translate(-b.min.x, -b.min.y);\n\n\t\t// Tell paths to redraw themselves\n\t\tthis.fire('update');\n\t},\n\n\t_reset: function () {\n\t\tL.Renderer.prototype._reset.call(this);\n\n\t\tif (this._postponeUpdatePaths) {\n\t\t\tthis._postponeUpdatePaths = false;\n\t\t\tthis._updatePaths();\n\t\t}\n\t},\n\n\t_initPath: function (layer) {\n\t\tthis._updateDashArray(layer);\n\t\tthis._layers[L.stamp(layer)] = layer;\n\n\t\tvar order = layer._order = {\n\t\t\tlayer: layer,\n\t\t\tprev: this._drawLast,\n\t\t\tnext: null\n\t\t};\n\t\tif (this._drawLast) { this._drawLast.next = order; }\n\t\tthis._drawLast = order;\n\t\tthis._drawFirst = this._drawFirst || this._drawLast;\n\t},\n\n\t_addPath: function (layer) {\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_removePath: function (layer) {\n\t\tvar order = layer._order;\n\t\tvar next = order.next;\n\t\tvar prev = order.prev;\n\n\t\tif (next) {\n\t\t\tnext.prev = prev;\n\t\t} else {\n\t\t\tthis._drawLast = prev;\n\t\t}\n\t\tif (prev) {\n\t\t\tprev.next = next;\n\t\t} else {\n\t\t\tthis._drawFirst = next;\n\t\t}\n\n\t\tdelete layer._order;\n\n\t\tdelete this._layers[L.stamp(layer)];\n\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_updatePath: function (layer) {\n\t\t// Redraw the union of the layer's old pixel\n\t\t// bounds and the new pixel bounds.\n\t\tthis._extendRedrawBounds(layer);\n\t\tlayer._project();\n\t\tlayer._update();\n\t\t// The redraw will extend the redraw bounds\n\t\t// with the new pixel bounds.\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_updateStyle: function (layer) {\n\t\tthis._updateDashArray(layer);\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_updateDashArray: function (layer) {\n\t\tif (layer.options.dashArray) {\n\t\t\tvar parts = layer.options.dashArray.split(','),\n\t\t\t    dashArray = [],\n\t\t\t    i;\n\t\t\tfor (i = 0; i < parts.length; i++) {\n\t\t\t\tdashArray.push(Number(parts[i]));\n\t\t\t}\n\t\t\tlayer.options._dashArray = dashArray;\n\t\t}\n\t},\n\n\t_requestRedraw: function (layer) {\n\t\tif (!this._map) { return; }\n\n\t\tthis._extendRedrawBounds(layer);\n\t\tthis._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this);\n\t},\n\n\t_extendRedrawBounds: function (layer) {\n\t\tvar padding = (layer.options.weight || 0) + 1;\n\t\tthis._redrawBounds = this._redrawBounds || new L.Bounds();\n\t\tthis._redrawBounds.extend(layer._pxBounds.min.subtract([padding, padding]));\n\t\tthis._redrawBounds.extend(layer._pxBounds.max.add([padding, padding]));\n\t},\n\n\t_redraw: function () {\n\t\tthis._redrawRequest = null;\n\n\t\tif (this._redrawBounds) {\n\t\t\tthis._redrawBounds.min._floor();\n\t\t\tthis._redrawBounds.max._ceil();\n\t\t}\n\n\t\tthis._clear(); // clear layers in redraw bounds\n\t\tthis._draw(); // draw layers\n\n\t\tthis._redrawBounds = null;\n\t},\n\n\t_clear: function () {\n\t\tvar bounds = this._redrawBounds;\n\t\tif (bounds) {\n\t\t\tvar size = bounds.getSize();\n\t\t\tthis._ctx.clearRect(bounds.min.x, bounds.min.y, size.x, size.y);\n\t\t} else {\n\t\t\tthis._ctx.clearRect(0, 0, this._container.width, this._container.height);\n\t\t}\n\t},\n\n\t_draw: function () {\n\t\tvar layer, bounds = this._redrawBounds;\n\t\tthis._ctx.save();\n\t\tif (bounds) {\n\t\t\tvar size = bounds.getSize();\n\t\t\tthis._ctx.beginPath();\n\t\t\tthis._ctx.rect(bounds.min.x, bounds.min.y, size.x, size.y);\n\t\t\tthis._ctx.clip();\n\t\t}\n\n\t\tthis._drawing = true;\n\n\t\tfor (var order = this._drawFirst; order; order = order.next) {\n\t\t\tlayer = order.layer;\n\t\t\tif (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) {\n\t\t\t\tlayer._updatePath();\n\t\t\t}\n\t\t}\n\n\t\tthis._drawing = false;\n\n\t\tthis._ctx.restore();  // Restore state before clipping.\n\t},\n\n\t_updatePoly: function (layer, closed) {\n\t\tif (!this._drawing) { return; }\n\n\t\tvar i, j, len2, p,\n\t\t    parts = layer._parts,\n\t\t    len = parts.length,\n\t\t    ctx = this._ctx;\n\n\t\tif (!len) { return; }\n\n\t\tthis._drawnLayers[layer._leaflet_id] = layer;\n\n\t\tctx.beginPath();\n\n\t\tif (ctx.setLineDash) {\n\t\t\tctx.setLineDash(layer.options && layer.options._dashArray || []);\n\t\t}\n\n\t\tfor (i = 0; i < len; i++) {\n\t\t\tfor (j = 0, len2 = parts[i].length; j < len2; j++) {\n\t\t\t\tp = parts[i][j];\n\t\t\t\tctx[j ? 'lineTo' : 'moveTo'](p.x, p.y);\n\t\t\t}\n\t\t\tif (closed) {\n\t\t\t\tctx.closePath();\n\t\t\t}\n\t\t}\n\n\t\tthis._fillStroke(ctx, layer);\n\n\t\t// TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature\n\t},\n\n\t_updateCircle: function (layer) {\n\n\t\tif (!this._drawing || layer._empty()) { return; }\n\n\t\tvar p = layer._point,\n\t\t    ctx = this._ctx,\n\t\t    r = layer._radius,\n\t\t    s = (layer._radiusY || r) / r;\n\n\t\tthis._drawnLayers[layer._leaflet_id] = layer;\n\n\t\tif (s !== 1) {\n\t\t\tctx.save();\n\t\t\tctx.scale(1, s);\n\t\t}\n\n\t\tctx.beginPath();\n\t\tctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);\n\n\t\tif (s !== 1) {\n\t\t\tctx.restore();\n\t\t}\n\n\t\tthis._fillStroke(ctx, layer);\n\t},\n\n\t_fillStroke: function (ctx, layer) {\n\t\tvar options = layer.options;\n\n\t\tif (options.fill) {\n\t\t\tctx.globalAlpha = options.fillOpacity;\n\t\t\tctx.fillStyle = options.fillColor || options.color;\n\t\t\tctx.fill(options.fillRule || 'evenodd');\n\t\t}\n\n\t\tif (options.stroke && options.weight !== 0) {\n\t\t\tctx.globalAlpha = options.opacity;\n\t\t\tctx.lineWidth = options.weight;\n\t\t\tctx.strokeStyle = options.color;\n\t\t\tctx.lineCap = options.lineCap;\n\t\t\tctx.lineJoin = options.lineJoin;\n\t\t\tctx.stroke();\n\t\t}\n\t},\n\n\t// Canvas obviously doesn't have mouse events for individual drawn objects,\n\t// so we emulate that by calculating what's under the mouse on mousemove/click manually\n\n\t_onClick: function (e) {\n\t\tvar point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer;\n\n\t\tfor (var order = this._drawFirst; order; order = order.next) {\n\t\t\tlayer = order.layer;\n\t\t\tif (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) {\n\t\t\t\tclickedLayer = layer;\n\t\t\t}\n\t\t}\n\t\tif (clickedLayer)  {\n\t\t\tL.DomEvent._fakeStop(e);\n\t\t\tthis._fireEvent([clickedLayer], e);\n\t\t}\n\t},\n\n\t_onMouseMove: function (e) {\n\t\tif (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; }\n\n\t\tvar point = this._map.mouseEventToLayerPoint(e);\n\t\tthis._handleMouseHover(e, point);\n\t},\n\n\n\t_handleMouseOut: function (e) {\n\t\tvar layer = this._hoveredLayer;\n\t\tif (layer) {\n\t\t\t// if we're leaving the layer, fire mouseout\n\t\t\tL.DomUtil.removeClass(this._container, 'leaflet-interactive');\n\t\t\tthis._fireEvent([layer], e, 'mouseout');\n\t\t\tthis._hoveredLayer = null;\n\t\t}\n\t},\n\n\t_handleMouseHover: function (e, point) {\n\t\tvar layer, candidateHoveredLayer;\n\n\t\tfor (var order = this._drawFirst; order; order = order.next) {\n\t\t\tlayer = order.layer;\n\t\t\tif (layer.options.interactive && layer._containsPoint(point)) {\n\t\t\t\tcandidateHoveredLayer = layer;\n\t\t\t}\n\t\t}\n\n\t\tif (candidateHoveredLayer !== this._hoveredLayer) {\n\t\t\tthis._handleMouseOut(e);\n\n\t\t\tif (candidateHoveredLayer) {\n\t\t\t\tL.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor\n\t\t\t\tthis._fireEvent([candidateHoveredLayer], e, 'mouseover');\n\t\t\t\tthis._hoveredLayer = candidateHoveredLayer;\n\t\t\t}\n\t\t}\n\n\t\tif (this._hoveredLayer) {\n\t\t\tthis._fireEvent([this._hoveredLayer], e);\n\t\t}\n\t},\n\n\t_fireEvent: function (layers, e, type) {\n\t\tthis._map._fireDOMEvent(e, type || e.type, layers);\n\t},\n\n\t_bringToFront: function (layer) {\n\t\tvar order = layer._order;\n\t\tvar next = order.next;\n\t\tvar prev = order.prev;\n\n\t\tif (next) {\n\t\t\tnext.prev = prev;\n\t\t} else {\n\t\t\t// Already last\n\t\t\treturn;\n\t\t}\n\t\tif (prev) {\n\t\t\tprev.next = next;\n\t\t} else if (next) {\n\t\t\t// Update first entry unless this is the\n\t\t\t// signle entry\n\t\t\tthis._drawFirst = next;\n\t\t}\n\n\t\torder.prev = this._drawLast;\n\t\tthis._drawLast.next = order;\n\n\t\torder.next = null;\n\t\tthis._drawLast = order;\n\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_bringToBack: function (layer) {\n\t\tvar order = layer._order;\n\t\tvar next = order.next;\n\t\tvar prev = order.prev;\n\n\t\tif (prev) {\n\t\t\tprev.next = next;\n\t\t} else {\n\t\t\t// Already first\n\t\t\treturn;\n\t\t}\n\t\tif (next) {\n\t\t\tnext.prev = prev;\n\t\t} else if (prev) {\n\t\t\t// Update last entry unless this is the\n\t\t\t// signle entry\n\t\t\tthis._drawLast = prev;\n\t\t}\n\n\t\torder.prev = null;\n\n\t\torder.next = this._drawFirst;\n\t\tthis._drawFirst.prev = order;\n\t\tthis._drawFirst = order;\n\n\t\tthis._requestRedraw(layer);\n\t}\n});\n\n// @namespace Browser; @property canvas: Boolean\n// `true` when the browser supports [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).\nL.Browser.canvas = (function () {\n\treturn !!document.createElement('canvas').getContext;\n}());\n\n// @namespace Canvas\n// @factory L.canvas(options?: Renderer options)\n// Creates a Canvas renderer with the given options.\nL.canvas = function (options) {\n\treturn L.Browser.canvas ? new L.Canvas(options) : null;\n};\n\nL.Polyline.prototype._containsPoint = function (p, closed) {\n\tvar i, j, k, len, len2, part,\n\t    w = this._clickTolerance();\n\n\tif (!this._pxBounds.contains(p)) { return false; }\n\n\t// hit detection for polylines\n\tfor (i = 0, len = this._parts.length; i < len; i++) {\n\t\tpart = this._parts[i];\n\n\t\tfor (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {\n\t\t\tif (!closed && (j === 0)) { continue; }\n\n\t\t\tif (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t}\n\treturn false;\n};\n\nL.Polygon.prototype._containsPoint = function (p) {\n\tvar inside = false,\n\t    part, p1, p2, i, j, k, len, len2;\n\n\tif (!this._pxBounds.contains(p)) { return false; }\n\n\t// ray casting algorithm for detecting if point is in polygon\n\tfor (i = 0, len = this._parts.length; i < len; i++) {\n\t\tpart = this._parts[i];\n\n\t\tfor (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {\n\t\t\tp1 = part[j];\n\t\t\tp2 = part[k];\n\n\t\t\tif (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {\n\t\t\t\tinside = !inside;\n\t\t\t}\n\t\t}\n\t}\n\n\t// also check if it's on polygon stroke\n\treturn inside || L.Polyline.prototype._containsPoint.call(this, p, true);\n};\n\nL.CircleMarker.prototype._containsPoint = function (p) {\n\treturn p.distanceTo(this._point) <= this._radius + this._clickTolerance();\n};\n\n\n\n/*\r\n * @class GeoJSON\r\n * @aka L.GeoJSON\r\n * @inherits FeatureGroup\r\n *\r\n * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse\r\n * GeoJSON data and display it on the map. Extends `FeatureGroup`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.geoJSON(data, {\r\n * \tstyle: function (feature) {\r\n * \t\treturn {color: feature.properties.color};\r\n * \t}\r\n * }).bindPopup(function (layer) {\r\n * \treturn layer.feature.properties.description;\r\n * }).addTo(map);\r\n * ```\r\n */\r\n\r\nL.GeoJSON = L.FeatureGroup.extend({\r\n\r\n\t/* @section\r\n\t * @aka GeoJSON options\r\n\t *\r\n\t * @option pointToLayer: Function = *\r\n\t * A `Function` defining how GeoJSON points spawn Leaflet layers. It is internally\r\n\t * called when data is added, passing the GeoJSON point feature and its `LatLng`.\r\n\t * The default is to spawn a default `Marker`:\r\n\t * ```js\r\n\t * function(geoJsonPoint, latlng) {\r\n\t * \treturn L.marker(latlng);\r\n\t * }\r\n\t * ```\r\n\t *\r\n\t * @option style: Function = *\r\n\t * A `Function` defining the `Path options` for styling GeoJSON lines and polygons,\r\n\t * called internally when data is added.\r\n\t * The default value is to not override any defaults:\r\n\t * ```js\r\n\t * function (geoJsonFeature) {\r\n\t * \treturn {}\r\n\t * }\r\n\t * ```\r\n\t *\r\n\t * @option onEachFeature: Function = *\r\n\t * A `Function` that will be called once for each created `Feature`, after it has\r\n\t * been created and styled. Useful for attaching events and popups to features.\r\n\t * The default is to do nothing with the newly created layers:\r\n\t * ```js\r\n\t * function (feature, layer) {}\r\n\t * ```\r\n\t *\r\n\t * @option filter: Function = *\r\n\t * A `Function` that will be used to decide whether to include a feature or not.\r\n\t * The default is to include all features:\r\n\t * ```js\r\n\t * function (geoJsonFeature) {\r\n\t * \treturn true;\r\n\t * }\r\n\t * ```\r\n\t * Note: dynamically changing the `filter` option will have effect only on newly\r\n\t * added data. It will _not_ re-evaluate already included features.\r\n\t *\r\n\t * @option coordsToLatLng: Function = *\r\n\t * A `Function` that will be used for converting GeoJSON coordinates to `LatLng`s.\r\n\t * The default is the `coordsToLatLng` static method.\r\n\t */\r\n\r\n\tinitialize: function (geojson, options) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._layers = {};\r\n\r\n\t\tif (geojson) {\r\n\t\t\tthis.addData(geojson);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method addData( <GeoJSON> data ): this\r\n\t// Adds a GeoJSON object to the layer.\r\n\taddData: function (geojson) {\r\n\t\tvar features = L.Util.isArray(geojson) ? geojson : geojson.features,\r\n\t\t    i, len, feature;\r\n\r\n\t\tif (features) {\r\n\t\t\tfor (i = 0, len = features.length; i < len; i++) {\r\n\t\t\t\t// only add this if geometry or geometries are set and not null\r\n\t\t\t\tfeature = features[i];\r\n\t\t\t\tif (feature.geometries || feature.geometry || feature.features || feature.coordinates) {\r\n\t\t\t\t\tthis.addData(feature);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tvar options = this.options;\r\n\r\n\t\tif (options.filter && !options.filter(geojson)) { return this; }\r\n\r\n\t\tvar layer = L.GeoJSON.geometryToLayer(geojson, options);\r\n\t\tif (!layer) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\t\tlayer.feature = L.GeoJSON.asFeature(geojson);\r\n\r\n\t\tlayer.defaultOptions = layer.options;\r\n\t\tthis.resetStyle(layer);\r\n\r\n\t\tif (options.onEachFeature) {\r\n\t\t\toptions.onEachFeature(geojson, layer);\r\n\t\t}\r\n\r\n\t\treturn this.addLayer(layer);\r\n\t},\r\n\r\n\t// @method resetStyle( <Path> layer ): this\r\n\t// Resets the given vector layer's style to the original GeoJSON style, useful for resetting style after hover events.\r\n\tresetStyle: function (layer) {\r\n\t\t// reset any custom styles\r\n\t\tlayer.options = L.Util.extend({}, layer.defaultOptions);\r\n\t\tthis._setLayerStyle(layer, this.options.style);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setStyle( <Function> style ): this\r\n\t// Changes styles of GeoJSON vector layers with the given style function.\r\n\tsetStyle: function (style) {\r\n\t\treturn this.eachLayer(function (layer) {\r\n\t\t\tthis._setLayerStyle(layer, style);\r\n\t\t}, this);\r\n\t},\r\n\r\n\t_setLayerStyle: function (layer, style) {\r\n\t\tif (typeof style === 'function') {\r\n\t\t\tstyle = style(layer.feature);\r\n\t\t}\r\n\t\tif (layer.setStyle) {\r\n\t\t\tlayer.setStyle(style);\r\n\t\t}\r\n\t}\r\n});\r\n\r\n// @section\r\n// There are several static functions which can be called without instantiating L.GeoJSON:\r\nL.extend(L.GeoJSON, {\r\n\t// @function geometryToLayer(featureData: Object, options?: GeoJSON options): Layer\r\n\t// Creates a `Layer` from a given GeoJSON feature. Can use a custom\r\n\t// [`pointToLayer`](#geojson-pointtolayer) and/or [`coordsToLatLng`](#geojson-coordstolatlng)\r\n\t// functions if provided as options.\r\n\tgeometryToLayer: function (geojson, options) {\r\n\r\n\t\tvar geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,\r\n\t\t    coords = geometry ? geometry.coordinates : null,\r\n\t\t    layers = [],\r\n\t\t    pointToLayer = options && options.pointToLayer,\r\n\t\t    coordsToLatLng = options && options.coordsToLatLng || this.coordsToLatLng,\r\n\t\t    latlng, latlngs, i, len;\r\n\r\n\t\tif (!coords && !geometry) {\r\n\t\t\treturn null;\r\n\t\t}\r\n\r\n\t\tswitch (geometry.type) {\r\n\t\tcase 'Point':\r\n\t\t\tlatlng = coordsToLatLng(coords);\r\n\t\t\treturn pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);\r\n\r\n\t\tcase 'MultiPoint':\r\n\t\t\tfor (i = 0, len = coords.length; i < len; i++) {\r\n\t\t\t\tlatlng = coordsToLatLng(coords[i]);\r\n\t\t\t\tlayers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));\r\n\t\t\t}\r\n\t\t\treturn new L.FeatureGroup(layers);\r\n\r\n\t\tcase 'LineString':\r\n\t\tcase 'MultiLineString':\r\n\t\t\tlatlngs = this.coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, coordsToLatLng);\r\n\t\t\treturn new L.Polyline(latlngs, options);\r\n\r\n\t\tcase 'Polygon':\r\n\t\tcase 'MultiPolygon':\r\n\t\t\tlatlngs = this.coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, coordsToLatLng);\r\n\t\t\treturn new L.Polygon(latlngs, options);\r\n\r\n\t\tcase 'GeometryCollection':\r\n\t\t\tfor (i = 0, len = geometry.geometries.length; i < len; i++) {\r\n\t\t\t\tvar layer = this.geometryToLayer({\r\n\t\t\t\t\tgeometry: geometry.geometries[i],\r\n\t\t\t\t\ttype: 'Feature',\r\n\t\t\t\t\tproperties: geojson.properties\r\n\t\t\t\t}, options);\r\n\r\n\t\t\t\tif (layer) {\r\n\t\t\t\t\tlayers.push(layer);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\treturn new L.FeatureGroup(layers);\r\n\r\n\t\tdefault:\r\n\t\t\tthrow new Error('Invalid GeoJSON object.');\r\n\t\t}\r\n\t},\r\n\r\n\t// @function coordsToLatLng(coords: Array): LatLng\r\n\t// Creates a `LatLng` object from an array of 2 numbers (longitude, latitude)\r\n\t// or 3 numbers (longitude, latitude, altitude) used in GeoJSON for points.\r\n\tcoordsToLatLng: function (coords) {\r\n\t\treturn new L.LatLng(coords[1], coords[0], coords[2]);\r\n\t},\r\n\r\n\t// @function coordsToLatLngs(coords: Array, levelsDeep?: Number, coordsToLatLng?: Function): Array\r\n\t// Creates a multidimensional array of `LatLng`s from a GeoJSON coordinates array.\r\n\t// `levelsDeep` specifies the nesting level (0 is for an array of points, 1 for an array of arrays of points, etc., 0 by default).\r\n\t// Can use a custom [`coordsToLatLng`](#geojson-coordstolatlng) function.\r\n\tcoordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) {\r\n\t\tvar latlngs = [];\r\n\r\n\t\tfor (var i = 0, len = coords.length, latlng; i < len; i++) {\r\n\t\t\tlatlng = levelsDeep ?\r\n\t\t\t        this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :\r\n\t\t\t        (coordsToLatLng || this.coordsToLatLng)(coords[i]);\r\n\r\n\t\t\tlatlngs.push(latlng);\r\n\t\t}\r\n\r\n\t\treturn latlngs;\r\n\t},\r\n\r\n\t// @function latLngToCoords(latlng: LatLng): Array\r\n\t// Reverse of [`coordsToLatLng`](#geojson-coordstolatlng)\r\n\tlatLngToCoords: function (latlng) {\r\n\t\treturn latlng.alt !== undefined ?\r\n\t\t\t\t[latlng.lng, latlng.lat, latlng.alt] :\r\n\t\t\t\t[latlng.lng, latlng.lat];\r\n\t},\r\n\r\n\t// @function latLngsToCoords(latlngs: Array, levelsDeep?: Number, closed?: Boolean): Array\r\n\t// Reverse of [`coordsToLatLngs`](#geojson-coordstolatlngs)\r\n\t// `closed` determines whether the first point should be appended to the end of the array to close the feature, only used when `levelsDeep` is 0. False by default.\r\n\tlatLngsToCoords: function (latlngs, levelsDeep, closed) {\r\n\t\tvar coords = [];\r\n\r\n\t\tfor (var i = 0, len = latlngs.length; i < len; i++) {\r\n\t\t\tcoords.push(levelsDeep ?\r\n\t\t\t\tL.GeoJSON.latLngsToCoords(latlngs[i], levelsDeep - 1, closed) :\r\n\t\t\t\tL.GeoJSON.latLngToCoords(latlngs[i]));\r\n\t\t}\r\n\r\n\t\tif (!levelsDeep && closed) {\r\n\t\t\tcoords.push(coords[0]);\r\n\t\t}\r\n\r\n\t\treturn coords;\r\n\t},\r\n\r\n\tgetFeature: function (layer, newGeometry) {\r\n\t\treturn layer.feature ?\r\n\t\t\t\tL.extend({}, layer.feature, {geometry: newGeometry}) :\r\n\t\t\t\tL.GeoJSON.asFeature(newGeometry);\r\n\t},\r\n\r\n\t// @function asFeature(geojson: Object): Object\r\n\t// Normalize GeoJSON geometries/features into GeoJSON features.\r\n\tasFeature: function (geojson) {\r\n\t\tif (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') {\r\n\t\t\treturn geojson;\r\n\t\t}\r\n\r\n\t\treturn {\r\n\t\t\ttype: 'Feature',\r\n\t\t\tproperties: {},\r\n\t\t\tgeometry: geojson\r\n\t\t};\r\n\t}\r\n});\r\n\r\nvar PointToGeoJSON = {\r\n\ttoGeoJSON: function () {\r\n\t\treturn L.GeoJSON.getFeature(this, {\r\n\t\t\ttype: 'Point',\r\n\t\t\tcoordinates: L.GeoJSON.latLngToCoords(this.getLatLng())\r\n\t\t});\r\n\t}\r\n};\r\n\r\n// @namespace Marker\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature).\r\nL.Marker.include(PointToGeoJSON);\r\n\r\n// @namespace CircleMarker\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the circle marker (as a GeoJSON `Point` Feature).\r\nL.Circle.include(PointToGeoJSON);\r\nL.CircleMarker.include(PointToGeoJSON);\r\n\r\n\r\n// @namespace Polyline\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polyline (as a GeoJSON `LineString` or `MultiLineString` Feature).\r\nL.Polyline.prototype.toGeoJSON = function () {\r\n\tvar multi = !L.Polyline._flat(this._latlngs);\r\n\r\n\tvar coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 1 : 0);\r\n\r\n\treturn L.GeoJSON.getFeature(this, {\r\n\t\ttype: (multi ? 'Multi' : '') + 'LineString',\r\n\t\tcoordinates: coords\r\n\t});\r\n};\r\n\r\n// @namespace Polygon\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polygon (as a GeoJSON `Polygon` or `MultiPolygon` Feature).\r\nL.Polygon.prototype.toGeoJSON = function () {\r\n\tvar holes = !L.Polyline._flat(this._latlngs),\r\n\t    multi = holes && !L.Polyline._flat(this._latlngs[0]);\r\n\r\n\tvar coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true);\r\n\r\n\tif (!holes) {\r\n\t\tcoords = [coords];\r\n\t}\r\n\r\n\treturn L.GeoJSON.getFeature(this, {\r\n\t\ttype: (multi ? 'Multi' : '') + 'Polygon',\r\n\t\tcoordinates: coords\r\n\t});\r\n};\r\n\r\n\r\n// @namespace LayerGroup\r\nL.LayerGroup.include({\r\n\ttoMultiPoint: function () {\r\n\t\tvar coords = [];\r\n\r\n\t\tthis.eachLayer(function (layer) {\r\n\t\t\tcoords.push(layer.toGeoJSON().geometry.coordinates);\r\n\t\t});\r\n\r\n\t\treturn L.GeoJSON.getFeature(this, {\r\n\t\t\ttype: 'MultiPoint',\r\n\t\t\tcoordinates: coords\r\n\t\t});\r\n\t},\r\n\r\n\t// @method toGeoJSON(): Object\r\n\t// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `GeometryCollection`).\r\n\ttoGeoJSON: function () {\r\n\r\n\t\tvar type = this.feature && this.feature.geometry && this.feature.geometry.type;\r\n\r\n\t\tif (type === 'MultiPoint') {\r\n\t\t\treturn this.toMultiPoint();\r\n\t\t}\r\n\r\n\t\tvar isGeometryCollection = type === 'GeometryCollection',\r\n\t\t    jsons = [];\r\n\r\n\t\tthis.eachLayer(function (layer) {\r\n\t\t\tif (layer.toGeoJSON) {\r\n\t\t\t\tvar json = layer.toGeoJSON();\r\n\t\t\t\tjsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));\r\n\t\t\t}\r\n\t\t});\r\n\r\n\t\tif (isGeometryCollection) {\r\n\t\t\treturn L.GeoJSON.getFeature(this, {\r\n\t\t\t\tgeometries: jsons,\r\n\t\t\t\ttype: 'GeometryCollection'\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\treturn {\r\n\t\t\ttype: 'FeatureCollection',\r\n\t\t\tfeatures: jsons\r\n\t\t};\r\n\t}\r\n});\r\n\r\n// @namespace GeoJSON\r\n// @factory L.geoJSON(geojson?: Object, options?: GeoJSON options)\r\n// Creates a GeoJSON layer. Optionally accepts an object in\r\n// [GeoJSON format](http://geojson.org/geojson-spec.html) to display on the map\r\n// (you can alternatively add it later with `addData` method) and an `options` object.\r\nL.geoJSON = function (geojson, options) {\r\n\treturn new L.GeoJSON(geojson, options);\r\n};\r\n// Backward compatibility.\r\nL.geoJson = L.geoJSON;\r\n\n\n\n/*\r\n * @class Draggable\r\n * @aka L.Draggable\r\n * @inherits Evented\r\n *\r\n * A class for making DOM elements draggable (including touch support).\r\n * Used internally for map and marker dragging. Only works for elements\r\n * that were positioned with [`L.DomUtil.setPosition`](#domutil-setposition).\r\n *\r\n * @example\r\n * ```js\r\n * var draggable = new L.Draggable(elementToDrag);\r\n * draggable.enable();\r\n * ```\r\n */\r\n\r\nL.Draggable = L.Evented.extend({\r\n\r\n\toptions: {\r\n\t\t// @option clickTolerance: Number = 3\r\n\t\t// The max number of pixels a user can shift the mouse pointer during a click\r\n\t\t// for it to be considered a valid click (as opposed to a mouse drag).\r\n\t\tclickTolerance: 3\r\n\t},\r\n\r\n\tstatics: {\r\n\t\tSTART: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],\r\n\t\tEND: {\r\n\t\t\tmousedown: 'mouseup',\r\n\t\t\ttouchstart: 'touchend',\r\n\t\t\tpointerdown: 'touchend',\r\n\t\t\tMSPointerDown: 'touchend'\r\n\t\t},\r\n\t\tMOVE: {\r\n\t\t\tmousedown: 'mousemove',\r\n\t\t\ttouchstart: 'touchmove',\r\n\t\t\tpointerdown: 'touchmove',\r\n\t\t\tMSPointerDown: 'touchmove'\r\n\t\t}\r\n\t},\r\n\r\n\t// @constructor L.Draggable(el: HTMLElement, dragHandle?: HTMLElement, preventOutline: Boolean)\r\n\t// Creates a `Draggable` object for moving `el` when you start dragging the `dragHandle` element (equals `el` itself by default).\r\n\tinitialize: function (element, dragStartTarget, preventOutline) {\r\n\t\tthis._element = element;\r\n\t\tthis._dragStartTarget = dragStartTarget || element;\r\n\t\tthis._preventOutline = preventOutline;\r\n\t},\r\n\r\n\t// @method enable()\r\n\t// Enables the dragging ability\r\n\tenable: function () {\r\n\t\tif (this._enabled) { return; }\r\n\r\n\t\tL.DomEvent.on(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);\r\n\r\n\t\tthis._enabled = true;\r\n\t},\r\n\r\n\t// @method disable()\r\n\t// Disables the dragging ability\r\n\tdisable: function () {\r\n\t\tif (!this._enabled) { return; }\r\n\r\n\t\t// If we're currently dragging this draggable,\r\n\t\t// disabling it counts as first ending the drag.\r\n\t\tif (L.Draggable._dragging === this) {\r\n\t\t\tthis.finishDrag();\r\n\t\t}\r\n\r\n\t\tL.DomEvent.off(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);\r\n\r\n\t\tthis._enabled = false;\r\n\t\tthis._moved = false;\r\n\t},\r\n\r\n\t_onDown: function (e) {\r\n\t\t// Ignore simulated events, since we handle both touch and\r\n\t\t// mouse explicitly; otherwise we risk getting duplicates of\r\n\t\t// touch events, see #4315.\r\n\t\t// Also ignore the event if disabled; this happens in IE11\r\n\t\t// under some circumstances, see #3666.\r\n\t\tif (e._simulated || !this._enabled) { return; }\r\n\r\n\t\tthis._moved = false;\r\n\r\n\t\tif (L.DomUtil.hasClass(this._element, 'leaflet-zoom-anim')) { return; }\r\n\r\n\t\tif (L.Draggable._dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }\r\n\t\tL.Draggable._dragging = this;  // Prevent dragging multiple objects at once.\r\n\r\n\t\tif (this._preventOutline) {\r\n\t\t\tL.DomUtil.preventOutline(this._element);\r\n\t\t}\r\n\r\n\t\tL.DomUtil.disableImageDrag();\r\n\t\tL.DomUtil.disableTextSelection();\r\n\r\n\t\tif (this._moving) { return; }\r\n\r\n\t\t// @event down: Event\r\n\t\t// Fired when a drag is about to start.\r\n\t\tthis.fire('down');\r\n\r\n\t\tvar first = e.touches ? e.touches[0] : e;\r\n\r\n\t\tthis._startPoint = new L.Point(first.clientX, first.clientY);\r\n\r\n\t\tL.DomEvent\r\n\t\t\t.on(document, L.Draggable.MOVE[e.type], this._onMove, this)\r\n\t\t\t.on(document, L.Draggable.END[e.type], this._onUp, this);\r\n\t},\r\n\r\n\t_onMove: function (e) {\r\n\t\t// Ignore simulated events, since we handle both touch and\r\n\t\t// mouse explicitly; otherwise we risk getting duplicates of\r\n\t\t// touch events, see #4315.\r\n\t\t// Also ignore the event if disabled; this happens in IE11\r\n\t\t// under some circumstances, see #3666.\r\n\t\tif (e._simulated || !this._enabled) { return; }\r\n\r\n\t\tif (e.touches && e.touches.length > 1) {\r\n\t\t\tthis._moved = true;\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tvar first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),\r\n\t\t    newPoint = new L.Point(first.clientX, first.clientY),\r\n\t\t    offset = newPoint.subtract(this._startPoint);\r\n\r\n\t\tif (!offset.x && !offset.y) { return; }\r\n\t\tif (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; }\r\n\r\n\t\tL.DomEvent.preventDefault(e);\r\n\r\n\t\tif (!this._moved) {\r\n\t\t\t// @event dragstart: Event\r\n\t\t\t// Fired when a drag starts\r\n\t\t\tthis.fire('dragstart');\r\n\r\n\t\t\tthis._moved = true;\r\n\t\t\tthis._startPos = L.DomUtil.getPosition(this._element).subtract(offset);\r\n\r\n\t\t\tL.DomUtil.addClass(document.body, 'leaflet-dragging');\r\n\r\n\t\t\tthis._lastTarget = e.target || e.srcElement;\r\n\t\t\t// IE and Edge do not give the <use> element, so fetch it\r\n\t\t\t// if necessary\r\n\t\t\tif ((window.SVGElementInstance) && (this._lastTarget instanceof SVGElementInstance)) {\r\n\t\t\t\tthis._lastTarget = this._lastTarget.correspondingUseElement;\r\n\t\t\t}\r\n\t\t\tL.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');\r\n\t\t}\r\n\r\n\t\tthis._newPos = this._startPos.add(offset);\r\n\t\tthis._moving = true;\r\n\r\n\t\tL.Util.cancelAnimFrame(this._animRequest);\r\n\t\tthis._lastEvent = e;\r\n\t\tthis._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true);\r\n\t},\r\n\r\n\t_updatePosition: function () {\r\n\t\tvar e = {originalEvent: this._lastEvent};\r\n\r\n\t\t// @event predrag: Event\r\n\t\t// Fired continuously during dragging *before* each corresponding\r\n\t\t// update of the element's position.\r\n\t\tthis.fire('predrag', e);\r\n\t\tL.DomUtil.setPosition(this._element, this._newPos);\r\n\r\n\t\t// @event drag: Event\r\n\t\t// Fired continuously during dragging.\r\n\t\tthis.fire('drag', e);\r\n\t},\r\n\r\n\t_onUp: function (e) {\r\n\t\t// Ignore simulated events, since we handle both touch and\r\n\t\t// mouse explicitly; otherwise we risk getting duplicates of\r\n\t\t// touch events, see #4315.\r\n\t\t// Also ignore the event if disabled; this happens in IE11\r\n\t\t// under some circumstances, see #3666.\r\n\t\tif (e._simulated || !this._enabled) { return; }\r\n\t\tthis.finishDrag();\r\n\t},\r\n\r\n\tfinishDrag: function () {\r\n\t\tL.DomUtil.removeClass(document.body, 'leaflet-dragging');\r\n\r\n\t\tif (this._lastTarget) {\r\n\t\t\tL.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');\r\n\t\t\tthis._lastTarget = null;\r\n\t\t}\r\n\r\n\t\tfor (var i in L.Draggable.MOVE) {\r\n\t\t\tL.DomEvent\r\n\t\t\t\t.off(document, L.Draggable.MOVE[i], this._onMove, this)\r\n\t\t\t\t.off(document, L.Draggable.END[i], this._onUp, this);\r\n\t\t}\r\n\r\n\t\tL.DomUtil.enableImageDrag();\r\n\t\tL.DomUtil.enableTextSelection();\r\n\r\n\t\tif (this._moved && this._moving) {\r\n\t\t\t// ensure drag is not fired after dragend\r\n\t\t\tL.Util.cancelAnimFrame(this._animRequest);\r\n\r\n\t\t\t// @event dragend: DragEndEvent\r\n\t\t\t// Fired when the drag ends.\r\n\t\t\tthis.fire('dragend', {\r\n\t\t\t\tdistance: this._newPos.distanceTo(this._startPos)\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tthis._moving = false;\r\n\t\tL.Draggable._dragging = false;\r\n\t}\r\n\r\n});\r\n\n\n\n/*\n\tL.Handler is a base class for handler classes that are used internally to inject\n\tinteraction features like dragging to classes like Map and Marker.\n*/\n\n// @class Handler\n// @aka L.Handler\n// Abstract class for map interaction handlers\n\nL.Handler = L.Class.extend({\n\tinitialize: function (map) {\n\t\tthis._map = map;\n\t},\n\n\t// @method enable(): this\n\t// Enables the handler\n\tenable: function () {\n\t\tif (this._enabled) { return this; }\n\n\t\tthis._enabled = true;\n\t\tthis.addHooks();\n\t\treturn this;\n\t},\n\n\t// @method disable(): this\n\t// Disables the handler\n\tdisable: function () {\n\t\tif (!this._enabled) { return this; }\n\n\t\tthis._enabled = false;\n\t\tthis.removeHooks();\n\t\treturn this;\n\t},\n\n\t// @method enabled(): Boolean\n\t// Returns `true` if the handler is enabled\n\tenabled: function () {\n\t\treturn !!this._enabled;\n\t}\n\n\t// @section Extension methods\n\t// Classes inheriting from `Handler` must implement the two following methods:\n\t// @method addHooks()\n\t// Called when the handler is enabled, should add event hooks.\n\t// @method removeHooks()\n\t// Called when the handler is disabled, should remove the event hooks added previously.\n});\n\n\n\n/*\n * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @option dragging: Boolean = true\n\t// Whether the map be draggable with mouse/touch or not.\n\tdragging: true,\n\n\t// @section Panning Inertia Options\n\t// @option inertia: Boolean = *\n\t// If enabled, panning of the map will have an inertia effect where\n\t// the map builds momentum while dragging and continues moving in\n\t// the same direction for some time. Feels especially nice on touch\n\t// devices. Enabled by default unless running on old Android devices.\n\tinertia: !L.Browser.android23,\n\n\t// @option inertiaDeceleration: Number = 3000\n\t// The rate with which the inertial movement slows down, in pixels/second².\n\tinertiaDeceleration: 3400, // px/s^2\n\n\t// @option inertiaMaxSpeed: Number = Infinity\n\t// Max speed of the inertial movement, in pixels/second.\n\tinertiaMaxSpeed: Infinity, // px/s\n\n\t// @option easeLinearity: Number = 0.2\n\teaseLinearity: 0.2,\n\n\t// TODO refactor, move to CRS\n\t// @option worldCopyJump: Boolean = false\n\t// With this option enabled, the map tracks when you pan to another \"copy\"\n\t// of the world and seamlessly jumps to the original one so that all overlays\n\t// like markers and vector layers are still visible.\n\tworldCopyJump: false,\n\n\t// @option maxBoundsViscosity: Number = 0.0\n\t// If `maxBounds` is set, this option will control how solid the bounds\n\t// are when dragging the map around. The default value of `0.0` allows the\n\t// user to drag outside the bounds at normal speed, higher values will\n\t// slow down map dragging outside bounds, and `1.0` makes the bounds fully\n\t// solid, preventing the user from dragging outside the bounds.\n\tmaxBoundsViscosity: 0.0\n});\n\nL.Map.Drag = L.Handler.extend({\n\taddHooks: function () {\n\t\tif (!this._draggable) {\n\t\t\tvar map = this._map;\n\n\t\t\tthis._draggable = new L.Draggable(map._mapPane, map._container);\n\n\t\t\tthis._draggable.on({\n\t\t\t\tdown: this._onDown,\n\t\t\t\tdragstart: this._onDragStart,\n\t\t\t\tdrag: this._onDrag,\n\t\t\t\tdragend: this._onDragEnd\n\t\t\t}, this);\n\n\t\t\tthis._draggable.on('predrag', this._onPreDragLimit, this);\n\t\t\tif (map.options.worldCopyJump) {\n\t\t\t\tthis._draggable.on('predrag', this._onPreDragWrap, this);\n\t\t\t\tmap.on('zoomend', this._onZoomEnd, this);\n\n\t\t\t\tmap.whenReady(this._onZoomEnd, this);\n\t\t\t}\n\t\t}\n\t\tL.DomUtil.addClass(this._map._container, 'leaflet-grab leaflet-touch-drag');\n\t\tthis._draggable.enable();\n\t\tthis._positions = [];\n\t\tthis._times = [];\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomUtil.removeClass(this._map._container, 'leaflet-grab');\n\t\tL.DomUtil.removeClass(this._map._container, 'leaflet-touch-drag');\n\t\tthis._draggable.disable();\n\t},\n\n\tmoved: function () {\n\t\treturn this._draggable && this._draggable._moved;\n\t},\n\n\tmoving: function () {\n\t\treturn this._draggable && this._draggable._moving;\n\t},\n\n\t_onDown: function () {\n\t\tthis._map._stop();\n\t},\n\n\t_onDragStart: function () {\n\t\tvar map = this._map;\n\n\t\tif (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) {\n\t\t\tvar bounds = L.latLngBounds(this._map.options.maxBounds);\n\n\t\t\tthis._offsetLimit = L.bounds(\n\t\t\t\tthis._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1),\n\t\t\t\tthis._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1)\n\t\t\t\t\t.add(this._map.getSize()));\n\n\t\t\tthis._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity));\n\t\t} else {\n\t\t\tthis._offsetLimit = null;\n\t\t}\n\n\t\tmap\n\t\t    .fire('movestart')\n\t\t    .fire('dragstart');\n\n\t\tif (map.options.inertia) {\n\t\t\tthis._positions = [];\n\t\t\tthis._times = [];\n\t\t}\n\t},\n\n\t_onDrag: function (e) {\n\t\tif (this._map.options.inertia) {\n\t\t\tvar time = this._lastTime = +new Date(),\n\t\t\t    pos = this._lastPos = this._draggable._absPos || this._draggable._newPos;\n\n\t\t\tthis._positions.push(pos);\n\t\t\tthis._times.push(time);\n\n\t\t\tif (time - this._times[0] > 50) {\n\t\t\t\tthis._positions.shift();\n\t\t\t\tthis._times.shift();\n\t\t\t}\n\t\t}\n\n\t\tthis._map\n\t\t    .fire('move', e)\n\t\t    .fire('drag', e);\n\t},\n\n\t_onZoomEnd: function () {\n\t\tvar pxCenter = this._map.getSize().divideBy(2),\n\t\t    pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);\n\n\t\tthis._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;\n\t\tthis._worldWidth = this._map.getPixelWorldBounds().getSize().x;\n\t},\n\n\t_viscousLimit: function (value, threshold) {\n\t\treturn value - (value - threshold) * this._viscosity;\n\t},\n\n\t_onPreDragLimit: function () {\n\t\tif (!this._viscosity || !this._offsetLimit) { return; }\n\n\t\tvar offset = this._draggable._newPos.subtract(this._draggable._startPos);\n\n\t\tvar limit = this._offsetLimit;\n\t\tif (offset.x < limit.min.x) { offset.x = this._viscousLimit(offset.x, limit.min.x); }\n\t\tif (offset.y < limit.min.y) { offset.y = this._viscousLimit(offset.y, limit.min.y); }\n\t\tif (offset.x > limit.max.x) { offset.x = this._viscousLimit(offset.x, limit.max.x); }\n\t\tif (offset.y > limit.max.y) { offset.y = this._viscousLimit(offset.y, limit.max.y); }\n\n\t\tthis._draggable._newPos = this._draggable._startPos.add(offset);\n\t},\n\n\t_onPreDragWrap: function () {\n\t\t// TODO refactor to be able to adjust map pane position after zoom\n\t\tvar worldWidth = this._worldWidth,\n\t\t    halfWidth = Math.round(worldWidth / 2),\n\t\t    dx = this._initialWorldOffset,\n\t\t    x = this._draggable._newPos.x,\n\t\t    newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,\n\t\t    newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,\n\t\t    newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;\n\n\t\tthis._draggable._absPos = this._draggable._newPos.clone();\n\t\tthis._draggable._newPos.x = newX;\n\t},\n\n\t_onDragEnd: function (e) {\n\t\tvar map = this._map,\n\t\t    options = map.options,\n\n\t\t    noInertia = !options.inertia || this._times.length < 2;\n\n\t\tmap.fire('dragend', e);\n\n\t\tif (noInertia) {\n\t\t\tmap.fire('moveend');\n\n\t\t} else {\n\n\t\t\tvar direction = this._lastPos.subtract(this._positions[0]),\n\t\t\t    duration = (this._lastTime - this._times[0]) / 1000,\n\t\t\t    ease = options.easeLinearity,\n\n\t\t\t    speedVector = direction.multiplyBy(ease / duration),\n\t\t\t    speed = speedVector.distanceTo([0, 0]),\n\n\t\t\t    limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),\n\t\t\t    limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),\n\n\t\t\t    decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),\n\t\t\t    offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();\n\n\t\t\tif (!offset.x && !offset.y) {\n\t\t\t\tmap.fire('moveend');\n\n\t\t\t} else {\n\t\t\t\toffset = map._limitOffset(offset, map.options.maxBounds);\n\n\t\t\t\tL.Util.requestAnimFrame(function () {\n\t\t\t\t\tmap.panBy(offset, {\n\t\t\t\t\t\tduration: decelerationDuration,\n\t\t\t\t\t\teaseLinearity: ease,\n\t\t\t\t\t\tnoMoveStart: true,\n\t\t\t\t\t\tanimate: true\n\t\t\t\t\t});\n\t\t\t\t});\n\t\t\t}\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property dragging: Handler\n// Map dragging handler (by both mouse and touch).\nL.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);\n\n\n\n/*\n * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.\n */\n\n// @namespace Map\n// @section Interaction Options\n\nL.Map.mergeOptions({\n\t// @option doubleClickZoom: Boolean|String = true\n\t// Whether the map can be zoomed in by double clicking on it and\n\t// zoomed out by double clicking while holding shift. If passed\n\t// `'center'`, double-click zoom will zoom to the center of the\n\t//  view regardless of where the mouse was.\n\tdoubleClickZoom: true\n});\n\nL.Map.DoubleClickZoom = L.Handler.extend({\n\taddHooks: function () {\n\t\tthis._map.on('dblclick', this._onDoubleClick, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tthis._map.off('dblclick', this._onDoubleClick, this);\n\t},\n\n\t_onDoubleClick: function (e) {\n\t\tvar map = this._map,\n\t\t    oldZoom = map.getZoom(),\n\t\t    delta = map.options.zoomDelta,\n\t\t    zoom = e.originalEvent.shiftKey ? oldZoom - delta : oldZoom + delta;\n\n\t\tif (map.options.doubleClickZoom === 'center') {\n\t\t\tmap.setZoom(zoom);\n\t\t} else {\n\t\t\tmap.setZoomAround(e.containerPoint, zoom);\n\t\t}\n\t}\n});\n\n// @section Handlers\n//\n// Map properties include interaction handlers that allow you to control\n// interaction behavior in runtime, enabling or disabling certain features such\n// as dragging or touch zoom (see `Handler` methods). For example:\n//\n// ```js\n// map.doubleClickZoom.disable();\n// ```\n//\n// @property doubleClickZoom: Handler\n// Double click zoom handler.\nL.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);\n\n\n\n/*\n * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @section Mousewheel options\n\t// @option scrollWheelZoom: Boolean|String = true\n\t// Whether the map can be zoomed by using the mouse wheel. If passed `'center'`,\n\t// it will zoom to the center of the view regardless of where the mouse was.\n\tscrollWheelZoom: true,\n\n\t// @option wheelDebounceTime: Number = 40\n\t// Limits the rate at which a wheel can fire (in milliseconds). By default\n\t// user can't zoom via wheel more often than once per 40 ms.\n\twheelDebounceTime: 40,\n\n\t// @option wheelPxPerZoomLevel: Number = 60\n\t// How many scroll pixels (as reported by [L.DomEvent.getWheelDelta](#domevent-getwheeldelta))\n\t// mean a change of one full zoom level. Smaller values will make wheel-zooming\n\t// faster (and vice versa).\n\twheelPxPerZoomLevel: 60\n});\n\nL.Map.ScrollWheelZoom = L.Handler.extend({\n\taddHooks: function () {\n\t\tL.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);\n\n\t\tthis._delta = 0;\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll, this);\n\t},\n\n\t_onWheelScroll: function (e) {\n\t\tvar delta = L.DomEvent.getWheelDelta(e);\n\n\t\tvar debounce = this._map.options.wheelDebounceTime;\n\n\t\tthis._delta += delta;\n\t\tthis._lastMousePos = this._map.mouseEventToContainerPoint(e);\n\n\t\tif (!this._startTime) {\n\t\t\tthis._startTime = +new Date();\n\t\t}\n\n\t\tvar left = Math.max(debounce - (+new Date() - this._startTime), 0);\n\n\t\tclearTimeout(this._timer);\n\t\tthis._timer = setTimeout(L.bind(this._performZoom, this), left);\n\n\t\tL.DomEvent.stop(e);\n\t},\n\n\t_performZoom: function () {\n\t\tvar map = this._map,\n\t\t    zoom = map.getZoom(),\n\t\t    snap = this._map.options.zoomSnap || 0;\n\n\t\tmap._stop(); // stop panning and fly animations if any\n\n\t\t// map the delta with a sigmoid function to -4..4 range leaning on -1..1\n\t\tvar d2 = this._delta / (this._map.options.wheelPxPerZoomLevel * 4),\n\t\t    d3 = 4 * Math.log(2 / (1 + Math.exp(-Math.abs(d2)))) / Math.LN2,\n\t\t    d4 = snap ? Math.ceil(d3 / snap) * snap : d3,\n\t\t    delta = map._limitZoom(zoom + (this._delta > 0 ? d4 : -d4)) - zoom;\n\n\t\tthis._delta = 0;\n\t\tthis._startTime = null;\n\n\t\tif (!delta) { return; }\n\n\t\tif (map.options.scrollWheelZoom === 'center') {\n\t\t\tmap.setZoom(zoom + delta);\n\t\t} else {\n\t\t\tmap.setZoomAround(this._lastMousePos, zoom + delta);\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property scrollWheelZoom: Handler\n// Scroll wheel zoom handler.\nL.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);\n\n\n\n/*\r\n * Extends the event handling code with double tap support for mobile browsers.\r\n */\r\n\r\nL.extend(L.DomEvent, {\r\n\r\n\t_touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',\r\n\t_touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',\r\n\r\n\t// inspired by Zepto touch code by Thomas Fuchs\r\n\taddDoubleTapListener: function (obj, handler, id) {\r\n\t\tvar last, touch,\r\n\t\t    doubleTap = false,\r\n\t\t    delay = 250;\r\n\r\n\t\tfunction onTouchStart(e) {\r\n\t\t\tvar count;\r\n\r\n\t\t\tif (L.Browser.pointer) {\r\n\t\t\t\tif ((!L.Browser.edge) || e.pointerType === 'mouse') { return; }\r\n\t\t\t\tcount = L.DomEvent._pointersCount;\r\n\t\t\t} else {\r\n\t\t\t\tcount = e.touches.length;\r\n\t\t\t}\r\n\r\n\t\t\tif (count > 1) { return; }\r\n\r\n\t\t\tvar now = Date.now(),\r\n\t\t\t    delta = now - (last || now);\r\n\r\n\t\t\ttouch = e.touches ? e.touches[0] : e;\r\n\t\t\tdoubleTap = (delta > 0 && delta <= delay);\r\n\t\t\tlast = now;\r\n\t\t}\r\n\r\n\t\tfunction onTouchEnd(e) {\r\n\t\t\tif (doubleTap && !touch.cancelBubble) {\r\n\t\t\t\tif (L.Browser.pointer) {\r\n\t\t\t\t\tif ((!L.Browser.edge) || e.pointerType === 'mouse') { return; }\r\n\r\n\t\t\t\t\t// work around .type being readonly with MSPointer* events\r\n\t\t\t\t\tvar newTouch = {},\r\n\t\t\t\t\t    prop, i;\r\n\r\n\t\t\t\t\tfor (i in touch) {\r\n\t\t\t\t\t\tprop = touch[i];\r\n\t\t\t\t\t\tnewTouch[i] = prop && prop.bind ? prop.bind(touch) : prop;\r\n\t\t\t\t\t}\r\n\t\t\t\t\ttouch = newTouch;\r\n\t\t\t\t}\r\n\t\t\t\ttouch.type = 'dblclick';\r\n\t\t\t\thandler(touch);\r\n\t\t\t\tlast = null;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tvar pre = '_leaflet_',\r\n\t\t    touchstart = this._touchstart,\r\n\t\t    touchend = this._touchend;\r\n\r\n\t\tobj[pre + touchstart + id] = onTouchStart;\r\n\t\tobj[pre + touchend + id] = onTouchEnd;\r\n\t\tobj[pre + 'dblclick' + id] = handler;\r\n\r\n\t\tobj.addEventListener(touchstart, onTouchStart, false);\r\n\t\tobj.addEventListener(touchend, onTouchEnd, false);\r\n\r\n\t\t// On some platforms (notably, chrome<55 on win10 + touchscreen + mouse),\r\n\t\t// the browser doesn't fire touchend/pointerup events but does fire\r\n\t\t// native dblclicks. See #4127.\r\n\t\t// Edge 14 also fires native dblclicks, but only for pointerType mouse, see #5180.\r\n\t\tobj.addEventListener('dblclick', handler, false);\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\tremoveDoubleTapListener: function (obj, id) {\r\n\t\tvar pre = '_leaflet_',\r\n\t\t    touchstart = obj[pre + this._touchstart + id],\r\n\t\t    touchend = obj[pre + this._touchend + id],\r\n\t\t    dblclick = obj[pre + 'dblclick' + id];\r\n\r\n\t\tobj.removeEventListener(this._touchstart, touchstart, false);\r\n\t\tobj.removeEventListener(this._touchend, touchend, false);\r\n\t\tif (!L.Browser.edge) {\r\n\t\t\tobj.removeEventListener('dblclick', dblclick, false);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t}\r\n});\r\n\n\n\n/*\n * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.\n */\n\nL.extend(L.DomEvent, {\n\n\tPOINTER_DOWN:   L.Browser.msPointer ? 'MSPointerDown'   : 'pointerdown',\n\tPOINTER_MOVE:   L.Browser.msPointer ? 'MSPointerMove'   : 'pointermove',\n\tPOINTER_UP:     L.Browser.msPointer ? 'MSPointerUp'     : 'pointerup',\n\tPOINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',\n\tTAG_WHITE_LIST: ['INPUT', 'SELECT', 'OPTION'],\n\n\t_pointers: {},\n\t_pointersCount: 0,\n\n\t// Provides a touch events wrapper for (ms)pointer events.\n\t// ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890\n\n\taddPointerListener: function (obj, type, handler, id) {\n\n\t\tif (type === 'touchstart') {\n\t\t\tthis._addPointerStart(obj, handler, id);\n\n\t\t} else if (type === 'touchmove') {\n\t\t\tthis._addPointerMove(obj, handler, id);\n\n\t\t} else if (type === 'touchend') {\n\t\t\tthis._addPointerEnd(obj, handler, id);\n\t\t}\n\n\t\treturn this;\n\t},\n\n\tremovePointerListener: function (obj, type, id) {\n\t\tvar handler = obj['_leaflet_' + type + id];\n\n\t\tif (type === 'touchstart') {\n\t\t\tobj.removeEventListener(this.POINTER_DOWN, handler, false);\n\n\t\t} else if (type === 'touchmove') {\n\t\t\tobj.removeEventListener(this.POINTER_MOVE, handler, false);\n\n\t\t} else if (type === 'touchend') {\n\t\t\tobj.removeEventListener(this.POINTER_UP, handler, false);\n\t\t\tobj.removeEventListener(this.POINTER_CANCEL, handler, false);\n\t\t}\n\n\t\treturn this;\n\t},\n\n\t_addPointerStart: function (obj, handler, id) {\n\t\tvar onDown = L.bind(function (e) {\n\t\t\tif (e.pointerType !== 'mouse' && e.MSPOINTER_TYPE_MOUSE && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {\n\t\t\t\t// In IE11, some touch events needs to fire for form controls, or\n\t\t\t\t// the controls will stop working. We keep a whitelist of tag names that\n\t\t\t\t// need these events. For other target tags, we prevent default on the event.\n\t\t\t\tif (this.TAG_WHITE_LIST.indexOf(e.target.tagName) < 0) {\n\t\t\t\t\tL.DomEvent.preventDefault(e);\n\t\t\t\t} else {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tthis._handlePointer(e, handler);\n\t\t}, this);\n\n\t\tobj['_leaflet_touchstart' + id] = onDown;\n\t\tobj.addEventListener(this.POINTER_DOWN, onDown, false);\n\n\t\t// need to keep track of what pointers and how many are active to provide e.touches emulation\n\t\tif (!this._pointerDocListener) {\n\t\t\tvar pointerUp = L.bind(this._globalPointerUp, this);\n\n\t\t\t// we listen documentElement as any drags that end by moving the touch off the screen get fired there\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_DOWN, L.bind(this._globalPointerDown, this), true);\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_MOVE, L.bind(this._globalPointerMove, this), true);\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_UP, pointerUp, true);\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_CANCEL, pointerUp, true);\n\n\t\t\tthis._pointerDocListener = true;\n\t\t}\n\t},\n\n\t_globalPointerDown: function (e) {\n\t\tthis._pointers[e.pointerId] = e;\n\t\tthis._pointersCount++;\n\t},\n\n\t_globalPointerMove: function (e) {\n\t\tif (this._pointers[e.pointerId]) {\n\t\t\tthis._pointers[e.pointerId] = e;\n\t\t}\n\t},\n\n\t_globalPointerUp: function (e) {\n\t\tdelete this._pointers[e.pointerId];\n\t\tthis._pointersCount--;\n\t},\n\n\t_handlePointer: function (e, handler) {\n\t\te.touches = [];\n\t\tfor (var i in this._pointers) {\n\t\t\te.touches.push(this._pointers[i]);\n\t\t}\n\t\te.changedTouches = [e];\n\n\t\thandler(e);\n\t},\n\n\t_addPointerMove: function (obj, handler, id) {\n\t\tvar onMove = L.bind(function (e) {\n\t\t\t// don't fire touch moves when mouse isn't down\n\t\t\tif ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }\n\n\t\t\tthis._handlePointer(e, handler);\n\t\t}, this);\n\n\t\tobj['_leaflet_touchmove' + id] = onMove;\n\t\tobj.addEventListener(this.POINTER_MOVE, onMove, false);\n\t},\n\n\t_addPointerEnd: function (obj, handler, id) {\n\t\tvar onUp = L.bind(function (e) {\n\t\t\tthis._handlePointer(e, handler);\n\t\t}, this);\n\n\t\tobj['_leaflet_touchend' + id] = onUp;\n\t\tobj.addEventListener(this.POINTER_UP, onUp, false);\n\t\tobj.addEventListener(this.POINTER_CANCEL, onUp, false);\n\t}\n});\n\n\n\n/*\n * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @section Touch interaction options\n\t// @option touchZoom: Boolean|String = *\n\t// Whether the map can be zoomed by touch-dragging with two fingers. If\n\t// passed `'center'`, it will zoom to the center of the view regardless of\n\t// where the touch events (fingers) were. Enabled for touch-capable web\n\t// browsers except for old Androids.\n\ttouchZoom: L.Browser.touch && !L.Browser.android23,\n\n\t// @option bounceAtZoomLimits: Boolean = true\n\t// Set it to false if you don't want the map to zoom beyond min/max zoom\n\t// and then bounce back when pinch-zooming.\n\tbounceAtZoomLimits: true\n});\n\nL.Map.TouchZoom = L.Handler.extend({\n\taddHooks: function () {\n\t\tL.DomUtil.addClass(this._map._container, 'leaflet-touch-zoom');\n\t\tL.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomUtil.removeClass(this._map._container, 'leaflet-touch-zoom');\n\t\tL.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);\n\t},\n\n\t_onTouchStart: function (e) {\n\t\tvar map = this._map;\n\t\tif (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }\n\n\t\tvar p1 = map.mouseEventToContainerPoint(e.touches[0]),\n\t\t    p2 = map.mouseEventToContainerPoint(e.touches[1]);\n\n\t\tthis._centerPoint = map.getSize()._divideBy(2);\n\t\tthis._startLatLng = map.containerPointToLatLng(this._centerPoint);\n\t\tif (map.options.touchZoom !== 'center') {\n\t\t\tthis._pinchStartLatLng = map.containerPointToLatLng(p1.add(p2)._divideBy(2));\n\t\t}\n\n\t\tthis._startDist = p1.distanceTo(p2);\n\t\tthis._startZoom = map.getZoom();\n\n\t\tthis._moved = false;\n\t\tthis._zooming = true;\n\n\t\tmap._stop();\n\n\t\tL.DomEvent\n\t\t    .on(document, 'touchmove', this._onTouchMove, this)\n\t\t    .on(document, 'touchend', this._onTouchEnd, this);\n\n\t\tL.DomEvent.preventDefault(e);\n\t},\n\n\t_onTouchMove: function (e) {\n\t\tif (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }\n\n\t\tvar map = this._map,\n\t\t    p1 = map.mouseEventToContainerPoint(e.touches[0]),\n\t\t    p2 = map.mouseEventToContainerPoint(e.touches[1]),\n\t\t    scale = p1.distanceTo(p2) / this._startDist;\n\n\n\t\tthis._zoom = map.getScaleZoom(scale, this._startZoom);\n\n\t\tif (!map.options.bounceAtZoomLimits && (\n\t\t\t(this._zoom < map.getMinZoom() && scale < 1) ||\n\t\t\t(this._zoom > map.getMaxZoom() && scale > 1))) {\n\t\t\tthis._zoom = map._limitZoom(this._zoom);\n\t\t}\n\n\t\tif (map.options.touchZoom === 'center') {\n\t\t\tthis._center = this._startLatLng;\n\t\t\tif (scale === 1) { return; }\n\t\t} else {\n\t\t\t// Get delta from pinch to center, so centerLatLng is delta applied to initial pinchLatLng\n\t\t\tvar delta = p1._add(p2)._divideBy(2)._subtract(this._centerPoint);\n\t\t\tif (scale === 1 && delta.x === 0 && delta.y === 0) { return; }\n\t\t\tthis._center = map.unproject(map.project(this._pinchStartLatLng, this._zoom).subtract(delta), this._zoom);\n\t\t}\n\n\t\tif (!this._moved) {\n\t\t\tmap._moveStart(true);\n\t\t\tthis._moved = true;\n\t\t}\n\n\t\tL.Util.cancelAnimFrame(this._animRequest);\n\n\t\tvar moveFn = L.bind(map._move, map, this._center, this._zoom, {pinch: true, round: false});\n\t\tthis._animRequest = L.Util.requestAnimFrame(moveFn, this, true);\n\n\t\tL.DomEvent.preventDefault(e);\n\t},\n\n\t_onTouchEnd: function () {\n\t\tif (!this._moved || !this._zooming) {\n\t\t\tthis._zooming = false;\n\t\t\treturn;\n\t\t}\n\n\t\tthis._zooming = false;\n\t\tL.Util.cancelAnimFrame(this._animRequest);\n\n\t\tL.DomEvent\n\t\t    .off(document, 'touchmove', this._onTouchMove)\n\t\t    .off(document, 'touchend', this._onTouchEnd);\n\n\t\t// Pinch updates GridLayers' levels only when zoomSnap is off, so zoomSnap becomes noUpdate.\n\t\tif (this._map.options.zoomAnimation) {\n\t\t\tthis._map._animateZoom(this._center, this._map._limitZoom(this._zoom), true, this._map.options.zoomSnap);\n\t\t} else {\n\t\t\tthis._map._resetView(this._center, this._map._limitZoom(this._zoom));\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property touchZoom: Handler\n// Touch zoom handler.\nL.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);\n\n\n\n/*\n * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @section Touch interaction options\n\t// @option tap: Boolean = true\n\t// Enables mobile hacks for supporting instant taps (fixing 200ms click\n\t// delay on iOS/Android) and touch holds (fired as `contextmenu` events).\n\ttap: true,\n\n\t// @option tapTolerance: Number = 15\n\t// The max number of pixels a user can shift his finger during touch\n\t// for it to be considered a valid tap.\n\ttapTolerance: 15\n});\n\nL.Map.Tap = L.Handler.extend({\n\taddHooks: function () {\n\t\tL.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);\n\t},\n\n\t_onDown: function (e) {\n\t\tif (!e.touches) { return; }\n\n\t\tL.DomEvent.preventDefault(e);\n\n\t\tthis._fireClick = true;\n\n\t\t// don't simulate click or track longpress if more than 1 touch\n\t\tif (e.touches.length > 1) {\n\t\t\tthis._fireClick = false;\n\t\t\tclearTimeout(this._holdTimeout);\n\t\t\treturn;\n\t\t}\n\n\t\tvar first = e.touches[0],\n\t\t    el = first.target;\n\n\t\tthis._startPos = this._newPos = new L.Point(first.clientX, first.clientY);\n\n\t\t// if touching a link, highlight it\n\t\tif (el.tagName && el.tagName.toLowerCase() === 'a') {\n\t\t\tL.DomUtil.addClass(el, 'leaflet-active');\n\t\t}\n\n\t\t// simulate long hold but setting a timeout\n\t\tthis._holdTimeout = setTimeout(L.bind(function () {\n\t\t\tif (this._isTapValid()) {\n\t\t\t\tthis._fireClick = false;\n\t\t\t\tthis._onUp();\n\t\t\t\tthis._simulateEvent('contextmenu', first);\n\t\t\t}\n\t\t}, this), 1000);\n\n\t\tthis._simulateEvent('mousedown', first);\n\n\t\tL.DomEvent.on(document, {\n\t\t\ttouchmove: this._onMove,\n\t\t\ttouchend: this._onUp\n\t\t}, this);\n\t},\n\n\t_onUp: function (e) {\n\t\tclearTimeout(this._holdTimeout);\n\n\t\tL.DomEvent.off(document, {\n\t\t\ttouchmove: this._onMove,\n\t\t\ttouchend: this._onUp\n\t\t}, this);\n\n\t\tif (this._fireClick && e && e.changedTouches) {\n\n\t\t\tvar first = e.changedTouches[0],\n\t\t\t    el = first.target;\n\n\t\t\tif (el && el.tagName && el.tagName.toLowerCase() === 'a') {\n\t\t\t\tL.DomUtil.removeClass(el, 'leaflet-active');\n\t\t\t}\n\n\t\t\tthis._simulateEvent('mouseup', first);\n\n\t\t\t// simulate click if the touch didn't move too much\n\t\t\tif (this._isTapValid()) {\n\t\t\t\tthis._simulateEvent('click', first);\n\t\t\t}\n\t\t}\n\t},\n\n\t_isTapValid: function () {\n\t\treturn this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;\n\t},\n\n\t_onMove: function (e) {\n\t\tvar first = e.touches[0];\n\t\tthis._newPos = new L.Point(first.clientX, first.clientY);\n\t\tthis._simulateEvent('mousemove', first);\n\t},\n\n\t_simulateEvent: function (type, e) {\n\t\tvar simulatedEvent = document.createEvent('MouseEvents');\n\n\t\tsimulatedEvent._simulated = true;\n\t\te.target._simulatedClick = true;\n\n\t\tsimulatedEvent.initMouseEvent(\n\t\t        type, true, true, window, 1,\n\t\t        e.screenX, e.screenY,\n\t\t        e.clientX, e.clientY,\n\t\t        false, false, false, false, 0, null);\n\n\t\te.target.dispatchEvent(simulatedEvent);\n\t}\n});\n\n// @section Handlers\n// @property tap: Handler\n// Mobile touch hacks (quick tap and touch hold) handler.\nif (L.Browser.touch && !L.Browser.pointer) {\n\tL.Map.addInitHook('addHandler', 'tap', L.Map.Tap);\n}\n\n\n\n/*\n * L.Handler.BoxZoom is used to add shift-drag zoom interaction to the map\n * (zoom to a selected bounding box), enabled by default.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @option boxZoom: Boolean = true\n\t// Whether the map can be zoomed to a rectangular area specified by\n\t// dragging the mouse while pressing the shift key.\n\tboxZoom: true\n});\n\nL.Map.BoxZoom = L.Handler.extend({\n\tinitialize: function (map) {\n\t\tthis._map = map;\n\t\tthis._container = map._container;\n\t\tthis._pane = map._panes.overlayPane;\n\t},\n\n\taddHooks: function () {\n\t\tL.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomEvent.off(this._container, 'mousedown', this._onMouseDown, this);\n\t},\n\n\tmoved: function () {\n\t\treturn this._moved;\n\t},\n\n\t_resetState: function () {\n\t\tthis._moved = false;\n\t},\n\n\t_onMouseDown: function (e) {\n\t\tif (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }\n\n\t\tthis._resetState();\n\n\t\tL.DomUtil.disableTextSelection();\n\t\tL.DomUtil.disableImageDrag();\n\n\t\tthis._startPoint = this._map.mouseEventToContainerPoint(e);\n\n\t\tL.DomEvent.on(document, {\n\t\t\tcontextmenu: L.DomEvent.stop,\n\t\t\tmousemove: this._onMouseMove,\n\t\t\tmouseup: this._onMouseUp,\n\t\t\tkeydown: this._onKeyDown\n\t\t}, this);\n\t},\n\n\t_onMouseMove: function (e) {\n\t\tif (!this._moved) {\n\t\t\tthis._moved = true;\n\n\t\t\tthis._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._container);\n\t\t\tL.DomUtil.addClass(this._container, 'leaflet-crosshair');\n\n\t\t\tthis._map.fire('boxzoomstart');\n\t\t}\n\n\t\tthis._point = this._map.mouseEventToContainerPoint(e);\n\n\t\tvar bounds = new L.Bounds(this._point, this._startPoint),\n\t\t    size = bounds.getSize();\n\n\t\tL.DomUtil.setPosition(this._box, bounds.min);\n\n\t\tthis._box.style.width  = size.x + 'px';\n\t\tthis._box.style.height = size.y + 'px';\n\t},\n\n\t_finish: function () {\n\t\tif (this._moved) {\n\t\t\tL.DomUtil.remove(this._box);\n\t\t\tL.DomUtil.removeClass(this._container, 'leaflet-crosshair');\n\t\t}\n\n\t\tL.DomUtil.enableTextSelection();\n\t\tL.DomUtil.enableImageDrag();\n\n\t\tL.DomEvent.off(document, {\n\t\t\tcontextmenu: L.DomEvent.stop,\n\t\t\tmousemove: this._onMouseMove,\n\t\t\tmouseup: this._onMouseUp,\n\t\t\tkeydown: this._onKeyDown\n\t\t}, this);\n\t},\n\n\t_onMouseUp: function (e) {\n\t\tif ((e.which !== 1) && (e.button !== 1)) { return; }\n\n\t\tthis._finish();\n\n\t\tif (!this._moved) { return; }\n\t\t// Postpone to next JS tick so internal click event handling\n\t\t// still see it as \"moved\".\n\t\tsetTimeout(L.bind(this._resetState, this), 0);\n\n\t\tvar bounds = new L.LatLngBounds(\n\t\t        this._map.containerPointToLatLng(this._startPoint),\n\t\t        this._map.containerPointToLatLng(this._point));\n\n\t\tthis._map\n\t\t\t.fitBounds(bounds)\n\t\t\t.fire('boxzoomend', {boxZoomBounds: bounds});\n\t},\n\n\t_onKeyDown: function (e) {\n\t\tif (e.keyCode === 27) {\n\t\t\tthis._finish();\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property boxZoom: Handler\n// Box (shift-drag with mouse) zoom handler.\nL.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);\n\n\n\n/*\n * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.\n */\n\n// @namespace Map\n// @section Keyboard Navigation Options\nL.Map.mergeOptions({\n\t// @option keyboard: Boolean = true\n\t// Makes the map focusable and allows users to navigate the map with keyboard\n\t// arrows and `+`/`-` keys.\n\tkeyboard: true,\n\n\t// @option keyboardPanDelta: Number = 80\n\t// Amount of pixels to pan when pressing an arrow key.\n\tkeyboardPanDelta: 80\n});\n\nL.Map.Keyboard = L.Handler.extend({\n\n\tkeyCodes: {\n\t\tleft:    [37],\n\t\tright:   [39],\n\t\tdown:    [40],\n\t\tup:      [38],\n\t\tzoomIn:  [187, 107, 61, 171],\n\t\tzoomOut: [189, 109, 54, 173]\n\t},\n\n\tinitialize: function (map) {\n\t\tthis._map = map;\n\n\t\tthis._setPanDelta(map.options.keyboardPanDelta);\n\t\tthis._setZoomDelta(map.options.zoomDelta);\n\t},\n\n\taddHooks: function () {\n\t\tvar container = this._map._container;\n\n\t\t// make the container focusable by tabbing\n\t\tif (container.tabIndex <= 0) {\n\t\t\tcontainer.tabIndex = '0';\n\t\t}\n\n\t\tL.DomEvent.on(container, {\n\t\t\tfocus: this._onFocus,\n\t\t\tblur: this._onBlur,\n\t\t\tmousedown: this._onMouseDown\n\t\t}, this);\n\n\t\tthis._map.on({\n\t\t\tfocus: this._addHooks,\n\t\t\tblur: this._removeHooks\n\t\t}, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tthis._removeHooks();\n\n\t\tL.DomEvent.off(this._map._container, {\n\t\t\tfocus: this._onFocus,\n\t\t\tblur: this._onBlur,\n\t\t\tmousedown: this._onMouseDown\n\t\t}, this);\n\n\t\tthis._map.off({\n\t\t\tfocus: this._addHooks,\n\t\t\tblur: this._removeHooks\n\t\t}, this);\n\t},\n\n\t_onMouseDown: function () {\n\t\tif (this._focused) { return; }\n\n\t\tvar body = document.body,\n\t\t    docEl = document.documentElement,\n\t\t    top = body.scrollTop || docEl.scrollTop,\n\t\t    left = body.scrollLeft || docEl.scrollLeft;\n\n\t\tthis._map._container.focus();\n\n\t\twindow.scrollTo(left, top);\n\t},\n\n\t_onFocus: function () {\n\t\tthis._focused = true;\n\t\tthis._map.fire('focus');\n\t},\n\n\t_onBlur: function () {\n\t\tthis._focused = false;\n\t\tthis._map.fire('blur');\n\t},\n\n\t_setPanDelta: function (panDelta) {\n\t\tvar keys = this._panKeys = {},\n\t\t    codes = this.keyCodes,\n\t\t    i, len;\n\n\t\tfor (i = 0, len = codes.left.length; i < len; i++) {\n\t\t\tkeys[codes.left[i]] = [-1 * panDelta, 0];\n\t\t}\n\t\tfor (i = 0, len = codes.right.length; i < len; i++) {\n\t\t\tkeys[codes.right[i]] = [panDelta, 0];\n\t\t}\n\t\tfor (i = 0, len = codes.down.length; i < len; i++) {\n\t\t\tkeys[codes.down[i]] = [0, panDelta];\n\t\t}\n\t\tfor (i = 0, len = codes.up.length; i < len; i++) {\n\t\t\tkeys[codes.up[i]] = [0, -1 * panDelta];\n\t\t}\n\t},\n\n\t_setZoomDelta: function (zoomDelta) {\n\t\tvar keys = this._zoomKeys = {},\n\t\t    codes = this.keyCodes,\n\t\t    i, len;\n\n\t\tfor (i = 0, len = codes.zoomIn.length; i < len; i++) {\n\t\t\tkeys[codes.zoomIn[i]] = zoomDelta;\n\t\t}\n\t\tfor (i = 0, len = codes.zoomOut.length; i < len; i++) {\n\t\t\tkeys[codes.zoomOut[i]] = -zoomDelta;\n\t\t}\n\t},\n\n\t_addHooks: function () {\n\t\tL.DomEvent.on(document, 'keydown', this._onKeyDown, this);\n\t},\n\n\t_removeHooks: function () {\n\t\tL.DomEvent.off(document, 'keydown', this._onKeyDown, this);\n\t},\n\n\t_onKeyDown: function (e) {\n\t\tif (e.altKey || e.ctrlKey || e.metaKey) { return; }\n\n\t\tvar key = e.keyCode,\n\t\t    map = this._map,\n\t\t    offset;\n\n\t\tif (key in this._panKeys) {\n\n\t\t\tif (map._panAnim && map._panAnim._inProgress) { return; }\n\n\t\t\toffset = this._panKeys[key];\n\t\t\tif (e.shiftKey) {\n\t\t\t\toffset = L.point(offset).multiplyBy(3);\n\t\t\t}\n\n\t\t\tmap.panBy(offset);\n\n\t\t\tif (map.options.maxBounds) {\n\t\t\t\tmap.panInsideBounds(map.options.maxBounds);\n\t\t\t}\n\n\t\t} else if (key in this._zoomKeys) {\n\t\t\tmap.setZoom(map.getZoom() + (e.shiftKey ? 3 : 1) * this._zoomKeys[key]);\n\n\t\t} else if (key === 27) {\n\t\t\tmap.closePopup();\n\n\t\t} else {\n\t\t\treturn;\n\t\t}\n\n\t\tL.DomEvent.stop(e);\n\t}\n});\n\n// @section Handlers\n// @section Handlers\n// @property keyboard: Handler\n// Keyboard navigation handler.\nL.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);\n\n\n\n/*\n * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.\n */\n\n\n/* @namespace Marker\n * @section Interaction handlers\n *\n * Interaction handlers are properties of a marker instance that allow you to control interaction behavior in runtime, enabling or disabling certain features such as dragging (see `Handler` methods). Example:\n *\n * ```js\n * marker.dragging.disable();\n * ```\n *\n * @property dragging: Handler\n * Marker dragging handler (by both mouse and touch).\n */\n\nL.Handler.MarkerDrag = L.Handler.extend({\n\tinitialize: function (marker) {\n\t\tthis._marker = marker;\n\t},\n\n\taddHooks: function () {\n\t\tvar icon = this._marker._icon;\n\n\t\tif (!this._draggable) {\n\t\t\tthis._draggable = new L.Draggable(icon, icon, true);\n\t\t}\n\n\t\tthis._draggable.on({\n\t\t\tdragstart: this._onDragStart,\n\t\t\tdrag: this._onDrag,\n\t\t\tdragend: this._onDragEnd\n\t\t}, this).enable();\n\n\t\tL.DomUtil.addClass(icon, 'leaflet-marker-draggable');\n\t},\n\n\tremoveHooks: function () {\n\t\tthis._draggable.off({\n\t\t\tdragstart: this._onDragStart,\n\t\t\tdrag: this._onDrag,\n\t\t\tdragend: this._onDragEnd\n\t\t}, this).disable();\n\n\t\tif (this._marker._icon) {\n\t\t\tL.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');\n\t\t}\n\t},\n\n\tmoved: function () {\n\t\treturn this._draggable && this._draggable._moved;\n\t},\n\n\t_onDragStart: function () {\n\t\t// @section Dragging events\n\t\t// @event dragstart: Event\n\t\t// Fired when the user starts dragging the marker.\n\n\t\t// @event movestart: Event\n\t\t// Fired when the marker starts moving (because of dragging).\n\n\t\tthis._oldLatLng = this._marker.getLatLng();\n\t\tthis._marker\n\t\t    .closePopup()\n\t\t    .fire('movestart')\n\t\t    .fire('dragstart');\n\t},\n\n\t_onDrag: function (e) {\n\t\tvar marker = this._marker,\n\t\t    shadow = marker._shadow,\n\t\t    iconPos = L.DomUtil.getPosition(marker._icon),\n\t\t    latlng = marker._map.layerPointToLatLng(iconPos);\n\n\t\t// update shadow position\n\t\tif (shadow) {\n\t\t\tL.DomUtil.setPosition(shadow, iconPos);\n\t\t}\n\n\t\tmarker._latlng = latlng;\n\t\te.latlng = latlng;\n\t\te.oldLatLng = this._oldLatLng;\n\n\t\t// @event drag: Event\n\t\t// Fired repeatedly while the user drags the marker.\n\t\tmarker\n\t\t    .fire('move', e)\n\t\t    .fire('drag', e);\n\t},\n\n\t_onDragEnd: function (e) {\n\t\t// @event dragend: DragEndEvent\n\t\t// Fired when the user stops dragging the marker.\n\n\t\t// @event moveend: Event\n\t\t// Fired when the marker stops moving (because of dragging).\n\t\tdelete this._oldLatLng;\n\t\tthis._marker\n\t\t    .fire('moveend')\n\t\t    .fire('dragend', e);\n\t}\n});\n\n\n\n/*\r\n * @class Control\r\n * @aka L.Control\r\n * @inherits Class\r\n *\r\n * L.Control is a base class for implementing map controls. Handles positioning.\r\n * All other controls extend from this class.\r\n */\r\n\r\nL.Control = L.Class.extend({\r\n\t// @section\r\n\t// @aka Control options\r\n\toptions: {\r\n\t\t// @option position: String = 'topright'\r\n\t\t// The position of the control (one of the map corners). Possible values are `'topleft'`,\r\n\t\t// `'topright'`, `'bottomleft'` or `'bottomright'`\r\n\t\tposition: 'topright'\r\n\t},\r\n\r\n\tinitialize: function (options) {\r\n\t\tL.setOptions(this, options);\r\n\t},\r\n\r\n\t/* @section\r\n\t * Classes extending L.Control will inherit the following methods:\r\n\t *\r\n\t * @method getPosition: string\r\n\t * Returns the position of the control.\r\n\t */\r\n\tgetPosition: function () {\r\n\t\treturn this.options.position;\r\n\t},\r\n\r\n\t// @method setPosition(position: string): this\r\n\t// Sets the position of the control.\r\n\tsetPosition: function (position) {\r\n\t\tvar map = this._map;\r\n\r\n\t\tif (map) {\r\n\t\t\tmap.removeControl(this);\r\n\t\t}\r\n\r\n\t\tthis.options.position = position;\r\n\r\n\t\tif (map) {\r\n\t\t\tmap.addControl(this);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getContainer: HTMLElement\r\n\t// Returns the HTMLElement that contains the control.\r\n\tgetContainer: function () {\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\t// @method addTo(map: Map): this\r\n\t// Adds the control to the given map.\r\n\taddTo: function (map) {\r\n\t\tthis.remove();\r\n\t\tthis._map = map;\r\n\r\n\t\tvar container = this._container = this.onAdd(map),\r\n\t\t    pos = this.getPosition(),\r\n\t\t    corner = map._controlCorners[pos];\r\n\r\n\t\tL.DomUtil.addClass(container, 'leaflet-control');\r\n\r\n\t\tif (pos.indexOf('bottom') !== -1) {\r\n\t\t\tcorner.insertBefore(container, corner.firstChild);\r\n\t\t} else {\r\n\t\t\tcorner.appendChild(container);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method remove: this\r\n\t// Removes the control from the map it is currently active on.\r\n\tremove: function () {\r\n\t\tif (!this._map) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tL.DomUtil.remove(this._container);\r\n\r\n\t\tif (this.onRemove) {\r\n\t\t\tthis.onRemove(this._map);\r\n\t\t}\r\n\r\n\t\tthis._map = null;\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_refocusOnMap: function (e) {\r\n\t\t// if map exists and event is not a keyboard event\r\n\t\tif (this._map && e && e.screenX > 0 && e.screenY > 0) {\r\n\t\t\tthis._map.getContainer().focus();\r\n\t\t}\r\n\t}\r\n});\r\n\r\nL.control = function (options) {\r\n\treturn new L.Control(options);\r\n};\r\n\r\n/* @section Extension methods\r\n * @uninheritable\r\n *\r\n * Every control should extend from `L.Control` and (re-)implement the following methods.\r\n *\r\n * @method onAdd(map: Map): HTMLElement\r\n * Should return the container DOM element for the control and add listeners on relevant map events. Called on [`control.addTo(map)`](#control-addTo).\r\n *\r\n * @method onRemove(map: Map)\r\n * Optional method. Should contain all clean up code that removes the listeners previously added in [`onAdd`](#control-onadd). Called on [`control.remove()`](#control-remove).\r\n */\r\n\r\n/* @namespace Map\r\n * @section Methods for Layers and Controls\r\n */\r\nL.Map.include({\r\n\t// @method addControl(control: Control): this\r\n\t// Adds the given control to the map\r\n\taddControl: function (control) {\r\n\t\tcontrol.addTo(this);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeControl(control: Control): this\r\n\t// Removes the given control from the map\r\n\tremoveControl: function (control) {\r\n\t\tcontrol.remove();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_initControlPos: function () {\r\n\t\tvar corners = this._controlCorners = {},\r\n\t\t    l = 'leaflet-',\r\n\t\t    container = this._controlContainer =\r\n\t\t            L.DomUtil.create('div', l + 'control-container', this._container);\r\n\r\n\t\tfunction createCorner(vSide, hSide) {\r\n\t\t\tvar className = l + vSide + ' ' + l + hSide;\r\n\r\n\t\t\tcorners[vSide + hSide] = L.DomUtil.create('div', className, container);\r\n\t\t}\r\n\r\n\t\tcreateCorner('top', 'left');\r\n\t\tcreateCorner('top', 'right');\r\n\t\tcreateCorner('bottom', 'left');\r\n\t\tcreateCorner('bottom', 'right');\r\n\t},\r\n\r\n\t_clearControlPos: function () {\r\n\t\tL.DomUtil.remove(this._controlContainer);\r\n\t}\r\n});\r\n\n\n\n/*\r\n * @class Control.Zoom\r\n * @aka L.Control.Zoom\r\n * @inherits Control\r\n *\r\n * A basic zoom control with two buttons (zoom in and zoom out). It is put on the map by default unless you set its [`zoomControl` option](#map-zoomcontrol) to `false`. Extends `Control`.\r\n */\r\n\r\nL.Control.Zoom = L.Control.extend({\r\n\t// @section\r\n\t// @aka Control.Zoom options\r\n\toptions: {\r\n\t\tposition: 'topleft',\r\n\r\n\t\t// @option zoomInText: String = '+'\r\n\t\t// The text set on the 'zoom in' button.\r\n\t\tzoomInText: '+',\r\n\r\n\t\t// @option zoomInTitle: String = 'Zoom in'\r\n\t\t// The title set on the 'zoom in' button.\r\n\t\tzoomInTitle: 'Zoom in',\r\n\r\n\t\t// @option zoomOutText: String = '-'\r\n\t\t// The text set on the 'zoom out' button.\r\n\t\tzoomOutText: '-',\r\n\r\n\t\t// @option zoomOutTitle: String = 'Zoom out'\r\n\t\t// The title set on the 'zoom out' button.\r\n\t\tzoomOutTitle: 'Zoom out'\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tvar zoomName = 'leaflet-control-zoom',\r\n\t\t    container = L.DomUtil.create('div', zoomName + ' leaflet-bar'),\r\n\t\t    options = this.options;\r\n\r\n\t\tthis._zoomInButton  = this._createButton(options.zoomInText, options.zoomInTitle,\r\n\t\t        zoomName + '-in',  container, this._zoomIn);\r\n\t\tthis._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle,\r\n\t\t        zoomName + '-out', container, this._zoomOut);\r\n\r\n\t\tthis._updateDisabled();\r\n\t\tmap.on('zoomend zoomlevelschange', this._updateDisabled, this);\r\n\r\n\t\treturn container;\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tmap.off('zoomend zoomlevelschange', this._updateDisabled, this);\r\n\t},\r\n\r\n\tdisable: function () {\r\n\t\tthis._disabled = true;\r\n\t\tthis._updateDisabled();\r\n\t\treturn this;\r\n\t},\r\n\r\n\tenable: function () {\r\n\t\tthis._disabled = false;\r\n\t\tthis._updateDisabled();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_zoomIn: function (e) {\r\n\t\tif (!this._disabled && this._map._zoom < this._map.getMaxZoom()) {\r\n\t\t\tthis._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));\r\n\t\t}\r\n\t},\r\n\r\n\t_zoomOut: function (e) {\r\n\t\tif (!this._disabled && this._map._zoom > this._map.getMinZoom()) {\r\n\t\t\tthis._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));\r\n\t\t}\r\n\t},\r\n\r\n\t_createButton: function (html, title, className, container, fn) {\r\n\t\tvar link = L.DomUtil.create('a', className, container);\r\n\t\tlink.innerHTML = html;\r\n\t\tlink.href = '#';\r\n\t\tlink.title = title;\r\n\r\n\t\t/*\r\n\t\t * Will force screen readers like VoiceOver to read this as \"Zoom in - button\"\r\n\t\t */\r\n\t\tlink.setAttribute('role', 'button');\r\n\t\tlink.setAttribute('aria-label', title);\r\n\r\n\t\tL.DomEvent\r\n\t\t    .on(link, 'mousedown dblclick', L.DomEvent.stopPropagation)\r\n\t\t    .on(link, 'click', L.DomEvent.stop)\r\n\t\t    .on(link, 'click', fn, this)\r\n\t\t    .on(link, 'click', this._refocusOnMap, this);\r\n\r\n\t\treturn link;\r\n\t},\r\n\r\n\t_updateDisabled: function () {\r\n\t\tvar map = this._map,\r\n\t\t    className = 'leaflet-disabled';\r\n\r\n\t\tL.DomUtil.removeClass(this._zoomInButton, className);\r\n\t\tL.DomUtil.removeClass(this._zoomOutButton, className);\r\n\r\n\t\tif (this._disabled || map._zoom === map.getMinZoom()) {\r\n\t\t\tL.DomUtil.addClass(this._zoomOutButton, className);\r\n\t\t}\r\n\t\tif (this._disabled || map._zoom === map.getMaxZoom()) {\r\n\t\t\tL.DomUtil.addClass(this._zoomInButton, className);\r\n\t\t}\r\n\t}\r\n});\r\n\r\n// @namespace Map\r\n// @section Control options\r\n// @option zoomControl: Boolean = true\r\n// Whether a [zoom control](#control-zoom) is added to the map by default.\r\nL.Map.mergeOptions({\r\n\tzoomControl: true\r\n});\r\n\r\nL.Map.addInitHook(function () {\r\n\tif (this.options.zoomControl) {\r\n\t\tthis.zoomControl = new L.Control.Zoom();\r\n\t\tthis.addControl(this.zoomControl);\r\n\t}\r\n});\r\n\r\n// @namespace Control.Zoom\r\n// @factory L.control.zoom(options: Control.Zoom options)\r\n// Creates a zoom control\r\nL.control.zoom = function (options) {\r\n\treturn new L.Control.Zoom(options);\r\n};\r\n\n\n\n/*\r\n * @class Control.Attribution\r\n * @aka L.Control.Attribution\r\n * @inherits Control\r\n *\r\n * The attribution control allows you to display attribution data in a small text box on a map. It is put on the map by default unless you set its [`attributionControl` option](#map-attributioncontrol) to `false`, and it fetches attribution texts from layers with the [`getAttribution` method](#layer-getattribution) automatically. Extends Control.\r\n */\r\n\r\nL.Control.Attribution = L.Control.extend({\r\n\t// @section\r\n\t// @aka Control.Attribution options\r\n\toptions: {\r\n\t\tposition: 'bottomright',\r\n\r\n\t\t// @option prefix: String = 'Leaflet'\r\n\t\t// The HTML text shown before the attributions. Pass `false` to disable.\r\n\t\tprefix: '<a href=\"http://leafletjs.com\" title=\"A JS library for interactive maps\">Leaflet</a>'\r\n\t},\r\n\r\n\tinitialize: function (options) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._attributions = {};\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tmap.attributionControl = this;\r\n\t\tthis._container = L.DomUtil.create('div', 'leaflet-control-attribution');\r\n\t\tif (L.DomEvent) {\r\n\t\t\tL.DomEvent.disableClickPropagation(this._container);\r\n\t\t}\r\n\r\n\t\t// TODO ugly, refactor\r\n\t\tfor (var i in map._layers) {\r\n\t\t\tif (map._layers[i].getAttribution) {\r\n\t\t\t\tthis.addAttribution(map._layers[i].getAttribution());\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tthis._update();\r\n\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\t// @method setPrefix(prefix: String): this\r\n\t// Sets the text before the attributions.\r\n\tsetPrefix: function (prefix) {\r\n\t\tthis.options.prefix = prefix;\r\n\t\tthis._update();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method addAttribution(text: String): this\r\n\t// Adds an attribution text (e.g. `'Vector data &copy; Mapbox'`).\r\n\taddAttribution: function (text) {\r\n\t\tif (!text) { return this; }\r\n\r\n\t\tif (!this._attributions[text]) {\r\n\t\t\tthis._attributions[text] = 0;\r\n\t\t}\r\n\t\tthis._attributions[text]++;\r\n\r\n\t\tthis._update();\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeAttribution(text: String): this\r\n\t// Removes an attribution text.\r\n\tremoveAttribution: function (text) {\r\n\t\tif (!text) { return this; }\r\n\r\n\t\tif (this._attributions[text]) {\r\n\t\t\tthis._attributions[text]--;\r\n\t\t\tthis._update();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_update: function () {\r\n\t\tif (!this._map) { return; }\r\n\r\n\t\tvar attribs = [];\r\n\r\n\t\tfor (var i in this._attributions) {\r\n\t\t\tif (this._attributions[i]) {\r\n\t\t\t\tattribs.push(i);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tvar prefixAndAttribs = [];\r\n\r\n\t\tif (this.options.prefix) {\r\n\t\t\tprefixAndAttribs.push(this.options.prefix);\r\n\t\t}\r\n\t\tif (attribs.length) {\r\n\t\t\tprefixAndAttribs.push(attribs.join(', '));\r\n\t\t}\r\n\r\n\t\tthis._container.innerHTML = prefixAndAttribs.join(' | ');\r\n\t}\r\n});\r\n\r\n// @namespace Map\r\n// @section Control options\r\n// @option attributionControl: Boolean = true\r\n// Whether a [attribution control](#control-attribution) is added to the map by default.\r\nL.Map.mergeOptions({\r\n\tattributionControl: true\r\n});\r\n\r\nL.Map.addInitHook(function () {\r\n\tif (this.options.attributionControl) {\r\n\t\tnew L.Control.Attribution().addTo(this);\r\n\t}\r\n});\r\n\r\n// @namespace Control.Attribution\r\n// @factory L.control.attribution(options: Control.Attribution options)\r\n// Creates an attribution control.\r\nL.control.attribution = function (options) {\r\n\treturn new L.Control.Attribution(options);\r\n};\r\n\n\n\n/*\n * @class Control.Scale\n * @aka L.Control.Scale\n * @inherits Control\n *\n * A simple scale control that shows the scale of the current center of screen in metric (m/km) and imperial (mi/ft) systems. Extends `Control`.\n *\n * @example\n *\n * ```js\n * L.control.scale().addTo(map);\n * ```\n */\n\nL.Control.Scale = L.Control.extend({\n\t// @section\n\t// @aka Control.Scale options\n\toptions: {\n\t\tposition: 'bottomleft',\n\n\t\t// @option maxWidth: Number = 100\n\t\t// Maximum width of the control in pixels. The width is set dynamically to show round values (e.g. 100, 200, 500).\n\t\tmaxWidth: 100,\n\n\t\t// @option metric: Boolean = True\n\t\t// Whether to show the metric scale line (m/km).\n\t\tmetric: true,\n\n\t\t// @option imperial: Boolean = True\n\t\t// Whether to show the imperial scale line (mi/ft).\n\t\timperial: true\n\n\t\t// @option updateWhenIdle: Boolean = false\n\t\t// If `true`, the control is updated on [`moveend`](#map-moveend), otherwise it's always up-to-date (updated on [`move`](#map-move)).\n\t},\n\n\tonAdd: function (map) {\n\t\tvar className = 'leaflet-control-scale',\n\t\t    container = L.DomUtil.create('div', className),\n\t\t    options = this.options;\n\n\t\tthis._addScales(options, className + '-line', container);\n\n\t\tmap.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);\n\t\tmap.whenReady(this._update, this);\n\n\t\treturn container;\n\t},\n\n\tonRemove: function (map) {\n\t\tmap.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);\n\t},\n\n\t_addScales: function (options, className, container) {\n\t\tif (options.metric) {\n\t\t\tthis._mScale = L.DomUtil.create('div', className, container);\n\t\t}\n\t\tif (options.imperial) {\n\t\t\tthis._iScale = L.DomUtil.create('div', className, container);\n\t\t}\n\t},\n\n\t_update: function () {\n\t\tvar map = this._map,\n\t\t    y = map.getSize().y / 2;\n\n\t\tvar maxMeters = map.distance(\n\t\t\t\tmap.containerPointToLatLng([0, y]),\n\t\t\t\tmap.containerPointToLatLng([this.options.maxWidth, y]));\n\n\t\tthis._updateScales(maxMeters);\n\t},\n\n\t_updateScales: function (maxMeters) {\n\t\tif (this.options.metric && maxMeters) {\n\t\t\tthis._updateMetric(maxMeters);\n\t\t}\n\t\tif (this.options.imperial && maxMeters) {\n\t\t\tthis._updateImperial(maxMeters);\n\t\t}\n\t},\n\n\t_updateMetric: function (maxMeters) {\n\t\tvar meters = this._getRoundNum(maxMeters),\n\t\t    label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';\n\n\t\tthis._updateScale(this._mScale, label, meters / maxMeters);\n\t},\n\n\t_updateImperial: function (maxMeters) {\n\t\tvar maxFeet = maxMeters * 3.2808399,\n\t\t    maxMiles, miles, feet;\n\n\t\tif (maxFeet > 5280) {\n\t\t\tmaxMiles = maxFeet / 5280;\n\t\t\tmiles = this._getRoundNum(maxMiles);\n\t\t\tthis._updateScale(this._iScale, miles + ' mi', miles / maxMiles);\n\n\t\t} else {\n\t\t\tfeet = this._getRoundNum(maxFeet);\n\t\t\tthis._updateScale(this._iScale, feet + ' ft', feet / maxFeet);\n\t\t}\n\t},\n\n\t_updateScale: function (scale, text, ratio) {\n\t\tscale.style.width = Math.round(this.options.maxWidth * ratio) + 'px';\n\t\tscale.innerHTML = text;\n\t},\n\n\t_getRoundNum: function (num) {\n\t\tvar pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),\n\t\t    d = num / pow10;\n\n\t\td = d >= 10 ? 10 :\n\t\t    d >= 5 ? 5 :\n\t\t    d >= 3 ? 3 :\n\t\t    d >= 2 ? 2 : 1;\n\n\t\treturn pow10 * d;\n\t}\n});\n\n\n// @factory L.control.scale(options?: Control.Scale options)\n// Creates an scale control with the given options.\nL.control.scale = function (options) {\n\treturn new L.Control.Scale(options);\n};\n\n\n\n/*\r\n * @class Control.Layers\r\n * @aka L.Control.Layers\r\n * @inherits Control\r\n *\r\n * The layers control gives users the ability to switch between different base layers and switch overlays on/off (check out the [detailed example](http://leafletjs.com/examples/layers-control.html)). Extends `Control`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var baseLayers = {\r\n * \t\"Mapbox\": mapbox,\r\n * \t\"OpenStreetMap\": osm\r\n * };\r\n *\r\n * var overlays = {\r\n * \t\"Marker\": marker,\r\n * \t\"Roads\": roadsLayer\r\n * };\r\n *\r\n * L.control.layers(baseLayers, overlays).addTo(map);\r\n * ```\r\n *\r\n * The `baseLayers` and `overlays` parameters are object literals with layer names as keys and `Layer` objects as values:\r\n *\r\n * ```js\r\n * {\r\n *     \"<someName1>\": layer1,\r\n *     \"<someName2>\": layer2\r\n * }\r\n * ```\r\n *\r\n * The layer names can contain HTML, which allows you to add additional styling to the items:\r\n *\r\n * ```js\r\n * {\"<img src='my-layer-icon' /> <span class='my-layer-item'>My Layer</span>\": myLayer}\r\n * ```\r\n */\r\n\r\n\r\nL.Control.Layers = L.Control.extend({\r\n\t// @section\r\n\t// @aka Control.Layers options\r\n\toptions: {\r\n\t\t// @option collapsed: Boolean = true\r\n\t\t// If `true`, the control will be collapsed into an icon and expanded on mouse hover or touch.\r\n\t\tcollapsed: true,\r\n\t\tposition: 'topright',\r\n\r\n\t\t// @option autoZIndex: Boolean = true\r\n\t\t// If `true`, the control will assign zIndexes in increasing order to all of its layers so that the order is preserved when switching them on/off.\r\n\t\tautoZIndex: true,\r\n\r\n\t\t// @option hideSingleBase: Boolean = false\r\n\t\t// If `true`, the base layers in the control will be hidden when there is only one.\r\n\t\thideSingleBase: false,\r\n\r\n\t\t// @option sortLayers: Boolean = false\r\n\t\t// Whether to sort the layers. When `false`, layers will keep the order\r\n\t\t// in which they were added to the control.\r\n\t\tsortLayers: false,\r\n\r\n\t\t// @option sortFunction: Function = *\r\n\t\t// A [compare function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort)\r\n\t\t// that will be used for sorting the layers, when `sortLayers` is `true`.\r\n\t\t// The function receives both the `L.Layer` instances and their names, as in\r\n\t\t// `sortFunction(layerA, layerB, nameA, nameB)`.\r\n\t\t// By default, it sorts layers alphabetically by their name.\r\n\t\tsortFunction: function (layerA, layerB, nameA, nameB) {\r\n\t\t\treturn nameA < nameB ? -1 : (nameB < nameA ? 1 : 0);\r\n\t\t}\r\n\t},\r\n\r\n\tinitialize: function (baseLayers, overlays, options) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._layers = [];\r\n\t\tthis._lastZIndex = 0;\r\n\t\tthis._handlingClick = false;\r\n\r\n\t\tfor (var i in baseLayers) {\r\n\t\t\tthis._addLayer(baseLayers[i], i);\r\n\t\t}\r\n\r\n\t\tfor (i in overlays) {\r\n\t\t\tthis._addLayer(overlays[i], i, true);\r\n\t\t}\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tthis._initLayout();\r\n\t\tthis._update();\r\n\r\n\t\tthis._map = map;\r\n\t\tmap.on('zoomend', this._checkDisabledLayers, this);\r\n\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\tonRemove: function () {\r\n\t\tthis._map.off('zoomend', this._checkDisabledLayers, this);\r\n\r\n\t\tfor (var i = 0; i < this._layers.length; i++) {\r\n\t\t\tthis._layers[i].layer.off('add remove', this._onLayerChange, this);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method addBaseLayer(layer: Layer, name: String): this\r\n\t// Adds a base layer (radio button entry) with the given name to the control.\r\n\taddBaseLayer: function (layer, name) {\r\n\t\tthis._addLayer(layer, name);\r\n\t\treturn (this._map) ? this._update() : this;\r\n\t},\r\n\r\n\t// @method addOverlay(layer: Layer, name: String): this\r\n\t// Adds an overlay (checkbox entry) with the given name to the control.\r\n\taddOverlay: function (layer, name) {\r\n\t\tthis._addLayer(layer, name, true);\r\n\t\treturn (this._map) ? this._update() : this;\r\n\t},\r\n\r\n\t// @method removeLayer(layer: Layer): this\r\n\t// Remove the given layer from the control.\r\n\tremoveLayer: function (layer) {\r\n\t\tlayer.off('add remove', this._onLayerChange, this);\r\n\r\n\t\tvar obj = this._getLayer(L.stamp(layer));\r\n\t\tif (obj) {\r\n\t\t\tthis._layers.splice(this._layers.indexOf(obj), 1);\r\n\t\t}\r\n\t\treturn (this._map) ? this._update() : this;\r\n\t},\r\n\r\n\t// @method expand(): this\r\n\t// Expand the control container if collapsed.\r\n\texpand: function () {\r\n\t\tL.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');\r\n\t\tthis._form.style.height = null;\r\n\t\tvar acceptableHeight = this._map.getSize().y - (this._container.offsetTop + 50);\r\n\t\tif (acceptableHeight < this._form.clientHeight) {\r\n\t\t\tL.DomUtil.addClass(this._form, 'leaflet-control-layers-scrollbar');\r\n\t\t\tthis._form.style.height = acceptableHeight + 'px';\r\n\t\t} else {\r\n\t\t\tL.DomUtil.removeClass(this._form, 'leaflet-control-layers-scrollbar');\r\n\t\t}\r\n\t\tthis._checkDisabledLayers();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method collapse(): this\r\n\t// Collapse the control container if expanded.\r\n\tcollapse: function () {\r\n\t\tL.DomUtil.removeClass(this._container, 'leaflet-control-layers-expanded');\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_initLayout: function () {\r\n\t\tvar className = 'leaflet-control-layers',\r\n\t\t    container = this._container = L.DomUtil.create('div', className),\r\n\t\t    collapsed = this.options.collapsed;\r\n\r\n\t\t// makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released\r\n\t\tcontainer.setAttribute('aria-haspopup', true);\r\n\r\n\t\tL.DomEvent.disableClickPropagation(container);\r\n\t\tif (!L.Browser.touch) {\r\n\t\t\tL.DomEvent.disableScrollPropagation(container);\r\n\t\t}\r\n\r\n\t\tvar form = this._form = L.DomUtil.create('form', className + '-list');\r\n\r\n\t\tif (collapsed) {\r\n\t\t\tthis._map.on('click', this.collapse, this);\r\n\r\n\t\t\tif (!L.Browser.android) {\r\n\t\t\t\tL.DomEvent.on(container, {\r\n\t\t\t\t\tmouseenter: this.expand,\r\n\t\t\t\t\tmouseleave: this.collapse\r\n\t\t\t\t}, this);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tvar link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);\r\n\t\tlink.href = '#';\r\n\t\tlink.title = 'Layers';\r\n\r\n\t\tif (L.Browser.touch) {\r\n\t\t\tL.DomEvent\r\n\t\t\t    .on(link, 'click', L.DomEvent.stop)\r\n\t\t\t    .on(link, 'click', this.expand, this);\r\n\t\t} else {\r\n\t\t\tL.DomEvent.on(link, 'focus', this.expand, this);\r\n\t\t}\r\n\r\n\t\t// work around for Firefox Android issue https://github.com/Leaflet/Leaflet/issues/2033\r\n\t\tL.DomEvent.on(form, 'click', function () {\r\n\t\t\tsetTimeout(L.bind(this._onInputClick, this), 0);\r\n\t\t}, this);\r\n\r\n\t\t// TODO keyboard accessibility\r\n\r\n\t\tif (!collapsed) {\r\n\t\t\tthis.expand();\r\n\t\t}\r\n\r\n\t\tthis._baseLayersList = L.DomUtil.create('div', className + '-base', form);\r\n\t\tthis._separator = L.DomUtil.create('div', className + '-separator', form);\r\n\t\tthis._overlaysList = L.DomUtil.create('div', className + '-overlays', form);\r\n\r\n\t\tcontainer.appendChild(form);\r\n\t},\r\n\r\n\t_getLayer: function (id) {\r\n\t\tfor (var i = 0; i < this._layers.length; i++) {\r\n\r\n\t\t\tif (this._layers[i] && L.stamp(this._layers[i].layer) === id) {\r\n\t\t\t\treturn this._layers[i];\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t_addLayer: function (layer, name, overlay) {\r\n\t\tlayer.on('add remove', this._onLayerChange, this);\r\n\r\n\t\tthis._layers.push({\r\n\t\t\tlayer: layer,\r\n\t\t\tname: name,\r\n\t\t\toverlay: overlay\r\n\t\t});\r\n\r\n\t\tif (this.options.sortLayers) {\r\n\t\t\tthis._layers.sort(L.bind(function (a, b) {\r\n\t\t\t\treturn this.options.sortFunction(a.layer, b.layer, a.name, b.name);\r\n\t\t\t}, this));\r\n\t\t}\r\n\r\n\t\tif (this.options.autoZIndex && layer.setZIndex) {\r\n\t\t\tthis._lastZIndex++;\r\n\t\t\tlayer.setZIndex(this._lastZIndex);\r\n\t\t}\r\n\t},\r\n\r\n\t_update: function () {\r\n\t\tif (!this._container) { return this; }\r\n\r\n\t\tL.DomUtil.empty(this._baseLayersList);\r\n\t\tL.DomUtil.empty(this._overlaysList);\r\n\r\n\t\tvar baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0;\r\n\r\n\t\tfor (i = 0; i < this._layers.length; i++) {\r\n\t\t\tobj = this._layers[i];\r\n\t\t\tthis._addItem(obj);\r\n\t\t\toverlaysPresent = overlaysPresent || obj.overlay;\r\n\t\t\tbaseLayersPresent = baseLayersPresent || !obj.overlay;\r\n\t\t\tbaseLayersCount += !obj.overlay ? 1 : 0;\r\n\t\t}\r\n\r\n\t\t// Hide base layers section if there's only one layer.\r\n\t\tif (this.options.hideSingleBase) {\r\n\t\t\tbaseLayersPresent = baseLayersPresent && baseLayersCount > 1;\r\n\t\t\tthis._baseLayersList.style.display = baseLayersPresent ? '' : 'none';\r\n\t\t}\r\n\r\n\t\tthis._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_onLayerChange: function (e) {\r\n\t\tif (!this._handlingClick) {\r\n\t\t\tthis._update();\r\n\t\t}\r\n\r\n\t\tvar obj = this._getLayer(L.stamp(e.target));\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Layer events\r\n\t\t// @event baselayerchange: LayersControlEvent\r\n\t\t// Fired when the base layer is changed through the [layer control](#control-layers).\r\n\t\t// @event overlayadd: LayersControlEvent\r\n\t\t// Fired when an overlay is selected through the [layer control](#control-layers).\r\n\t\t// @event overlayremove: LayersControlEvent\r\n\t\t// Fired when an overlay is deselected through the [layer control](#control-layers).\r\n\t\t// @namespace Control.Layers\r\n\t\tvar type = obj.overlay ?\r\n\t\t\t(e.type === 'add' ? 'overlayadd' : 'overlayremove') :\r\n\t\t\t(e.type === 'add' ? 'baselayerchange' : null);\r\n\r\n\t\tif (type) {\r\n\t\t\tthis._map.fire(type, obj);\r\n\t\t}\r\n\t},\r\n\r\n\t// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)\r\n\t_createRadioElement: function (name, checked) {\r\n\r\n\t\tvar radioHtml = '<input type=\"radio\" class=\"leaflet-control-layers-selector\" name=\"' +\r\n\t\t\t\tname + '\"' + (checked ? ' checked=\"checked\"' : '') + '/>';\r\n\r\n\t\tvar radioFragment = document.createElement('div');\r\n\t\tradioFragment.innerHTML = radioHtml;\r\n\r\n\t\treturn radioFragment.firstChild;\r\n\t},\r\n\r\n\t_addItem: function (obj) {\r\n\t\tvar label = document.createElement('label'),\r\n\t\t    checked = this._map.hasLayer(obj.layer),\r\n\t\t    input;\r\n\r\n\t\tif (obj.overlay) {\r\n\t\t\tinput = document.createElement('input');\r\n\t\t\tinput.type = 'checkbox';\r\n\t\t\tinput.className = 'leaflet-control-layers-selector';\r\n\t\t\tinput.defaultChecked = checked;\r\n\t\t} else {\r\n\t\t\tinput = this._createRadioElement('leaflet-base-layers', checked);\r\n\t\t}\r\n\r\n\t\tinput.layerId = L.stamp(obj.layer);\r\n\r\n\t\tL.DomEvent.on(input, 'click', this._onInputClick, this);\r\n\r\n\t\tvar name = document.createElement('span');\r\n\t\tname.innerHTML = ' ' + obj.name;\r\n\r\n\t\t// Helps from preventing layer control flicker when checkboxes are disabled\r\n\t\t// https://github.com/Leaflet/Leaflet/issues/2771\r\n\t\tvar holder = document.createElement('div');\r\n\r\n\t\tlabel.appendChild(holder);\r\n\t\tholder.appendChild(input);\r\n\t\tholder.appendChild(name);\r\n\r\n\t\tvar container = obj.overlay ? this._overlaysList : this._baseLayersList;\r\n\t\tcontainer.appendChild(label);\r\n\r\n\t\tthis._checkDisabledLayers();\r\n\t\treturn label;\r\n\t},\r\n\r\n\t_onInputClick: function () {\r\n\t\tvar inputs = this._form.getElementsByTagName('input'),\r\n\t\t    input, layer, hasLayer;\r\n\t\tvar addedLayers = [],\r\n\t\t    removedLayers = [];\r\n\r\n\t\tthis._handlingClick = true;\r\n\r\n\t\tfor (var i = inputs.length - 1; i >= 0; i--) {\r\n\t\t\tinput = inputs[i];\r\n\t\t\tlayer = this._getLayer(input.layerId).layer;\r\n\t\t\thasLayer = this._map.hasLayer(layer);\r\n\r\n\t\t\tif (input.checked && !hasLayer) {\r\n\t\t\t\taddedLayers.push(layer);\r\n\r\n\t\t\t} else if (!input.checked && hasLayer) {\r\n\t\t\t\tremovedLayers.push(layer);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// Bugfix issue 2318: Should remove all old layers before readding new ones\r\n\t\tfor (i = 0; i < removedLayers.length; i++) {\r\n\t\t\tthis._map.removeLayer(removedLayers[i]);\r\n\t\t}\r\n\t\tfor (i = 0; i < addedLayers.length; i++) {\r\n\t\t\tthis._map.addLayer(addedLayers[i]);\r\n\t\t}\r\n\r\n\t\tthis._handlingClick = false;\r\n\r\n\t\tthis._refocusOnMap();\r\n\t},\r\n\r\n\t_checkDisabledLayers: function () {\r\n\t\tvar inputs = this._form.getElementsByTagName('input'),\r\n\t\t    input,\r\n\t\t    layer,\r\n\t\t    zoom = this._map.getZoom();\r\n\r\n\t\tfor (var i = inputs.length - 1; i >= 0; i--) {\r\n\t\t\tinput = inputs[i];\r\n\t\t\tlayer = this._getLayer(input.layerId).layer;\r\n\t\t\tinput.disabled = (layer.options.minZoom !== undefined && zoom < layer.options.minZoom) ||\r\n\t\t\t                 (layer.options.maxZoom !== undefined && zoom > layer.options.maxZoom);\r\n\r\n\t\t}\r\n\t},\r\n\r\n\t_expand: function () {\r\n\t\t// Backward compatibility, remove me in 1.1.\r\n\t\treturn this.expand();\r\n\t},\r\n\r\n\t_collapse: function () {\r\n\t\t// Backward compatibility, remove me in 1.1.\r\n\t\treturn this.collapse();\r\n\t}\r\n\r\n});\r\n\r\n\r\n// @factory L.control.layers(baselayers?: Object, overlays?: Object, options?: Control.Layers options)\r\n// Creates an attribution control with the given layers. Base layers will be switched with radio buttons, while overlays will be switched with checkboxes. Note that all base layers should be passed in the base layers object, but only one should be added to the map during map instantiation.\r\nL.control.layers = function (baseLayers, overlays, options) {\r\n\treturn new L.Control.Layers(baseLayers, overlays, options);\r\n};\r\n\n\n\n}(window, document));\n//# sourceMappingURL=leaflet-src.map","/**\n * @class  L.Matrix\n *\n * @param {Number} a\n * @param {Number} b\n * @param {Number} c\n * @param {Number} d\n * @param {Number} e\n * @param {Number} f\n */\nL.Matrix = function(a, b, c, d, e, f) {\n\n  /**\n   * @type {Array.<Number>}\n   */\n  this._matrix = [a, b, c, d, e, f];\n};\n\n\nL.Matrix.prototype = {\n\n\n  /**\n   * @param  {L.Point} point\n   * @return {L.Point}\n   */\n  transform: function(point) {\n    return this._transform(point.clone());\n  },\n\n\n  /**\n   * Destructive\n   *\n   * [ x ] = [ a  b  tx ] [ x ] = [ a * x + b * y + tx ]\n   * [ y ] = [ c  d  ty ] [ y ] = [ c * x + d * y + ty ]\n   *\n   * @param  {L.Point} point\n   * @return {L.Point}\n   */\n  _transform: function(point) {\n    var matrix = this._matrix;\n    var x = point.x, y = point.y;\n    point.x = matrix[0] * x + matrix[1] * y + matrix[4];\n    point.y = matrix[2] * x + matrix[3] * y + matrix[5];\n    return point;\n  },\n\n\n  /**\n   * @param  {L.Point} point\n   * @return {L.Point}\n   */\n  untransform: function (point) {\n    var matrix = this._matrix;\n    return new L.Point(\n      (point.x / matrix[0] - matrix[4]) / matrix[0],\n      (point.y / matrix[2] - matrix[5]) / matrix[2]\n    );\n  },\n\n\n  /**\n   * @return {L.Matrix}\n   */\n  clone: function() {\n    var matrix = this._matrix;\n    return new L.Matrix(\n      matrix[0], matrix[1], matrix[2],\n      matrix[3], matrix[4], matrix[5]\n    );\n  },\n\n\n  /**\n   * @param {L.Point=|Number=} translate\n   * @return {L.Matrix|L.Point}\n   */\n  translate: function(translate) {\n    if (translate === undefined) {\n      return new L.Point(this._matrix[4], this._matrix[5]);\n    }\n\n    var translateX, translateY;\n    if (typeof translate === 'number') {\n      translateX = translateY = translate;\n    } else {\n      translateX = translate.x;\n      translateY = translate.y;\n    }\n\n    return this._add(1, 0, 0, 1, translateX, translateY);\n  },\n\n\n  /**\n   * @param {L.Point=|Number=} scale\n   * @return {L.Matrix|L.Point}\n   */\n  scale: function(scale, origin) {\n    if (scale === undefined) {\n      return new L.Point(this._matrix[0], this._matrix[3]);\n    }\n\n    var scaleX, scaleY;\n    origin = origin || L.point(0, 0);\n    if (typeof scale === 'number') {\n      scaleX = scaleY = scale;\n    } else {\n      scaleX = scale.x;\n      scaleY = scale.y;\n    }\n\n    return this\n      ._add(scaleX, 0, 0, scaleY, origin.x, origin.y)\n      ._add(1, 0, 0, 1, -origin.x, -origin.y);\n  },\n\n\n  /**\n   * m00  m01  x - m00 * x - m01 * y\n   * m10  m11  y - m10 * x - m11 * y\n   * @param {Number}   angle\n   * @param {L.Point=} origin\n   * @return {L.Matrix}\n   */\n  rotate: function(angle, origin) {\n    var cos = Math.cos(angle);\n    var sin = Math.sin(angle);\n\n    origin = origin || new L.Point(0, 0);\n\n    return this\n      ._add(cos, sin, -sin, cos, origin.x, origin.y)\n      ._add(1, 0, 0, 1, -origin.x, -origin.y);\n  },\n\n\n  /**\n   * Invert rotation\n   * @return {L.Matrix}\n   */\n  flip: function() {\n    this._matrix[1] *= -1;\n    this._matrix[2] *= -1;\n    return this;\n  },\n\n\n  /**\n   * @param {Number|L.Matrix} a\n   * @param {Number} b\n   * @param {Number} c\n   * @param {Number} d\n   * @param {Number} e\n   * @param {Number} f\n   */\n  _add: function(a, b, c, d, e, f) {\n    var result = [[], [], []];\n    var src = this._matrix;\n    var m = [\n      [src[0], src[2], src[4]],\n      [src[1], src[3], src[5]],\n      [     0,      0,     1]\n    ];\n    var other = [\n      [a, c, e],\n      [b, d, f],\n      [0, 0, 1]\n    ], val;\n\n\n    if (a && a instanceof L.Matrix) {\n      src = a._matrix;\n      other = [\n        [src[0], src[2], src[4]],\n        [src[1], src[3], src[5]],\n        [     0,      0,     1]];\n    }\n\n    for (var i = 0; i < 3; i++) {\n      for (var j = 0; j < 3; j++) {\n        val = 0;\n        for (var k = 0; k < 3; k++) {\n          val += m[i][k] * other[k][j];\n        }\n        result[i][j] = val;\n      }\n    }\n\n    this._matrix = [\n      result[0][0], result[1][0], result[0][1],\n      result[1][1], result[0][2], result[1][2]\n    ];\n    return this;\n  }\n\n\n};\n\n\nL.matrix = function(a, b, c, d, e, f) {\n  return new L.Matrix(a, b, c, d, e, f);\n};\n","/**\n * @namespace\n * @type {Object}\n */\nL.PathTransform = {};\n\n\n/**\n * Marker handler\n * @extends {L.CircleMarker}\n */\nL.PathTransform.Handle = L.CircleMarker.extend({\n  options: {\n    className: 'leaflet-path-transform-handler'\n  },\n\n  onAdd: function (map) {\n    L.CircleMarker.prototype.onAdd.call(this, map);\n    if (this._path && this.options.setCursor) { // SVG/VML\n      this._path.style.cursor = L.PathTransform.Handle.CursorsByType[\n        this.options.index\n      ];\n    }\n  }\n});\n\n\n/**\n * @const\n * @type {Array}\n */\nL.PathTransform.Handle.CursorsByType = [\n  'nesw-resize', 'nwse-resize', 'nesw-resize', 'nwse-resize'\n];\n\n\n/**\n * @extends {L.Handler.PathTransform.Handle}\n */\nL.PathTransform.RotateHandle = L.PathTransform.Handle.extend({\n  options: {\n    className: 'leaflet-path-transform-handler transform-handler--rotate'\n  },\n\n  onAdd: function (map) {\n    L.CircleMarker.prototype.onAdd.call(this, map);\n    if (this._path && this.options.setCursor) { // SVG/VML\n      this._path.style.cursor = 'all-scroll';\n    }\n  }\n});\n\nL.Handler.PathTransform = L.Handler.extend({\n\n  options: {\n    rotation: true,\n    scaling:  true,\n    uniformScaling: true,\n    maxZoom:  22,\n\n    // edge handlers\n    handlerOptions: {\n      radius:      5,\n      fillColor:   '#ffffff',\n      color:       '#202020',\n      fillOpacity: 1,\n      weight:      2,\n      opacity:     0.7,\n      setCursor:   true\n    },\n\n    // rectangle\n    boundsOptions: {\n      weight:    1,\n      opacity:   1,\n      dashArray: [3, 3],\n      fill:      false\n    },\n\n    // rotation handler\n    rotateHandleOptions: {\n      weight:    1,\n      opacity:   1,\n      setCursor: true\n    },\n    // rotation handle length\n    handleLength: 20,\n\n    // maybe I'll add skewing in the future\n    edgesCount:   4,\n\n    handleClass:       L.PathTransform.Handle,\n    rotateHandleClass: L.PathTransform.RotateHandle\n  },\n\n\n  /**\n   * @class L.Handler.PathTransform\n   * @constructor\n   * @param  {L.Path} path\n   */\n  initialize: function(path) {\n    // references\n    this._path = path;\n    this._map  = null;\n\n    // handlers\n    this._activeMarker   = null;\n    this._originMarker   = null;\n    this._rotationMarker = null;\n\n    // origins & temporary state\n    this._rotationOrigin   = null;\n    this._scaleOrigin      = null;\n    this._angle            = 0;\n    this._scale            = L.point(1, 1);\n    this._initialDist      = 0;\n    this._initialDistX     = 0;\n    this._initialDistY     = 0;\n    this._rotationStart    = null;\n    this._rotationOriginPt = null;\n\n    // preview and transform matrix\n    this._matrix          = new L.Matrix(1, 0, 0, 1, 0, 0);\n    this._projectedMatrix = new L.Matrix(1, 0, 0, 1, 0, 0);\n\n    // ui elements\n    this._handlersGroup  = null;\n    this._rect           = null;\n    this._handlers       = [];\n    this._handleLine     = null;\n  },\n\n\n  /**\n   * If the polygon is not rendered, you can transform it yourself\n   * in the coordinates, and do it properly.\n   * @param {Object=} options\n   */\n  enable: function(options) {\n    if (this._path._map) {\n      this._map = this._path._map;\n      if (options) {\n        this.setOptions(options);\n      }\n      L.Handler.prototype.enable.call(this);\n    }\n  },\n\n\n  /**\n   * Init interactions and handlers\n   */\n  addHooks: function() {\n    this._createHandlers();\n    this._path\n      .on('dragstart', this._onDragStart, this)\n      .on('dragend',   this._onDragEnd,   this);\n  },\n\n\n  /**\n   * Remove handlers\n   */\n  removeHooks: function() {\n    this._hideHandlers();\n    this._path\n      .off('dragstart', this._onDragStart, this)\n      .off('dragend',   this._onDragEnd,   this);\n    this._handlersGroup = null;\n    this._rect = null;\n    this._handlers = [];\n  },\n\n\n  /**\n   * Change editing options\n   * @param {Object} options\n   */\n  setOptions: function(options) {\n    var enabled = this._enabled;\n    if (enabled) {\n      this.disable();\n    }\n\n    this.options = L.Util.merge({},\n      L.Handler.PathTransform.prototype.options,\n      options);\n\n    if (enabled) {\n      this.enable();\n    }\n\n    return this;\n  },\n\n\n  /**\n   * @param  {Number}   angle\n   * @param  {L.LatLng} origin\n   * @return {L.Handler.PathTransform}\n   */\n  rotate: function(angle, origin) {\n    return this.transform(angle, null, origin);\n  },\n\n\n  /**\n   * @param  {L.Point|Number} scale\n   * @param  {L.LatLng}       origin\n   * @return {L.Handler.PathTransform}\n   */\n  scale: function(scale, origin) {\n    if (typeof scale === 'number') {\n      scale = L.point(scale, scale);\n    }\n    return this.transform(0, scale, null, origin);\n  },\n\n\n  /**\n   * @param  {Number}    angle\n   * @param  {L.Point}   scale\n   * @param  {L.LatLng=} rotationOrigin\n   * @param  {L.LatLng=} scaleOrigin\n   * @return {L.Handler.PathTransform}\n   */\n  transform: function(angle, scale, rotationOrigin, scaleOrigin) {\n    var center     = this._path.getCenter();\n    rotationOrigin = rotationOrigin || center;\n    scaleOrigin    = scaleOrigin    || center;\n    this._map = this._path._map;\n    this._transformPoints(this._path, angle, scale, rotationOrigin, scaleOrigin);\n    return this;\n  },\n\n\n  /**\n   * Update the polygon and handlers preview, no reprojection\n   */\n  _update: function() {\n    var matrix = this._matrix;\n\n    // update handlers\n    for (var i = 0, len = this._handlers.length; i < len; i++) {\n      var handler = this._handlers[i];\n      if (handler !== this._originMarker) {\n        handler._point = matrix.transform(handler._initialPoint);\n        handler._updatePath();\n      }\n    }\n\n    matrix = matrix.clone().flip();\n\n    this._applyTransform(matrix);\n    this._path.fire('transform', { layer: this._path });\n  },\n\n\n  /**\n   * @param  {L.Matrix} matrix\n   */\n  _applyTransform: function(matrix) {\n    this._path._transform(matrix._matrix);\n    this._rect._transform(matrix._matrix);\n\n    if (this.options.rotation) {\n      this._handleLine._transform(matrix._matrix);\n    }\n  },\n\n\n  /**\n   * Apply final transformation\n   */\n  _apply: function() {\n    //console.group('apply transform');\n    var map = this._map;\n    var matrix = this._matrix.clone();\n    var angle = this._angle;\n    var scale = this._scale.clone();\n\n    this._transformGeometries();\n\n    // update handlers\n    for (var i = 0, len = this._handlers.length; i < len; i++) {\n      var handler = this._handlers[i];\n      handler._latlng = map.layerPointToLatLng(handler._point);\n      delete handler._initialPoint;\n      handler.redraw();\n    }\n\n    this._matrix = L.matrix(1, 0, 0, 1, 0, 0);\n    this._scale  = L.point(1, 1);\n    this._angle  = 0;\n\n    this._updateHandlers();\n\n    map.dragging.enable();\n    this._path.fire('transformed', {\n      matrix: matrix,\n      scale: scale,\n      rotation: angle,\n      // angle: angle * (180 / Math.PI),\n      layer: this._path\n    });\n    // console.groupEnd('apply transform');\n  },\n\n\n  /**\n   * Recalculate rotation handlers position\n   */\n  _updateHandlers: function() {\n    var handlersGroup = this._handlersGroup;\n\n    this._rectShape = this._rect.toGeoJSON();\n\n    this._handlersGroup.removeLayer(this._handleLine);\n    this._handlersGroup.removeLayer(this._rotationMarker);\n\n    this._handleLine = this._rotationMarker = null;\n\n    for (var i = this._handlers.length - 1; i >= 0; i--) {\n      handlersGroup.removeLayer(this._handlers[i]);\n    }\n\n    this._createHandlers();\n  },\n\n\n  /**\n   * Transform geometries separately\n   */\n  _transformGeometries: function() {\n    this._path._transform(null);\n    this._rect._transform(null);\n\n    this._transformPoints(this._path);\n    this._transformPoints(this._rect);\n\n    if (this.options.rotation) {\n      this._handleLine._transform(null);\n      this._transformPoints(this._handleLine, this._angle, null, this._origin);\n    }\n  },\n\n\n  /**\n   * @param {Number} angle\n   * @param {Number} scale\n   * @param {L.LatLng=} rotationOrigin\n   * @param {L.LatLng=} scaleOrigin\n   */\n  _getProjectedMatrix: function(angle, scale, rotationOrigin, scaleOrigin) {\n    var map    = this._map;\n    var zoom   = map.getMaxZoom() || this.options.maxZoom;\n    var matrix = L.matrix(1, 0, 0, 1, 0, 0);\n    var origin;\n\n    angle = angle || this._angle || 0;\n    scale = scale || this._scale || L.point(1, 1);\n\n    if (!(scale.x === 1 && scale.y === 1)) {\n      scaleOrigin = scaleOrigin || this._scaleOrigin;\n      origin = map.project(scaleOrigin, zoom);\n      matrix = matrix\n        ._add(L.matrix(1, 0, 0, 1, origin.x, origin.y))\n        ._add(L.matrix(scale.x, 0, 0, scale.y, 0, 0))\n        ._add(L.matrix(1, 0, 0, 1, -origin.x, -origin.y));\n    }\n\n    if (angle) {\n      rotationOrigin = rotationOrigin || this._rotationOrigin;\n      origin = map.project(rotationOrigin, zoom);\n      matrix = matrix.rotate(angle, origin).flip();\n    }\n\n    return matrix;\n  },\n\n\n  /**\n   * @param  {L.LatLng} latlng\n   * @param  {L.Matrix} matrix\n   * @param  {L.Map}    map\n   * @param  {Number}   zoom\n   * @return {L.LatLng}\n   */\n  _transformPoint: function(latlng, matrix, map, zoom) {\n    return map.unproject(matrix.transform(\n      map.project(latlng, zoom)), zoom);\n  },\n\n\n  /**\n   * Applies transformation, does it in one sweep for performance,\n   * so don't be surprised about the code repetition.\n   *\n   * @param {L.Path}    path\n   * @param {Number=}   angle\n   * @param {L.Point=}  scale\n   * @param {L.LatLng=} rotationOrigin\n   * @param {L.LatLng=} scaleOrigin\n   */\n  _transformPoints: function(path, angle, scale, rotationOrigin, scaleOrigin) {\n    var map = path._map;\n    var zoom = map.getMaxZoom() || this.options.maxZoom;\n    var i, len;\n\n    var projectedMatrix = this._projectedMatrix =\n      this._getProjectedMatrix(angle, scale, rotationOrigin, scaleOrigin);\n    // console.time('transform');\n\n    // all shifts are in-place\n    if (path._point) { // L.Circle\n      path._latlng = this._transformPoint(\n        path._latlng, projectedMatrix, map, zoom);\n    } else if (path._rings || path._parts) { // everything else\n      var rings = path._rings;\n      var latlngs = path._latlngs;\n      path._bounds = new L.LatLngBounds();\n\n      if (!L.Util.isArray(latlngs[0])) { // polyline\n        latlngs = [latlngs];\n      }\n      for (i = 0, len = rings.length; i < len; i++) {\n        for (var j = 0, jj = rings[i].length; j < jj; j++) {\n          latlngs[i][j] = this._transformPoint(\n            latlngs[i][j], projectedMatrix, map, zoom);\n          path._bounds.extend(latlngs[i][j]);\n        }\n      }\n    }\n\n    path._reset();\n    //console.timeEnd('transform');\n  },\n\n\n  /**\n   * Creates markers and handles\n   */\n  _createHandlers: function() {\n    var map = this._map;\n    this._handlersGroup = this._handlersGroup ||\n                          new L.LayerGroup().addTo(map);\n    this._rect = this._rect ||\n                 this._getBoundingPolygon().addTo(this._handlersGroup);\n\n    if (this.options.scaling) {\n      this._handlers = [];\n      for (var i = 0; i < this.options.edgesCount; i++) {\n        // TODO: add stretching\n        this._handlers.push(\n          this._createHandler(this._rect._latlngs[0][i], i * 2, i)\n          .addTo(this._handlersGroup));\n      }\n    }\n\n    // add bounds\n    if (this.options.rotation) {\n      //add rotation handler\n      this._createRotationHandlers();\n    }\n  },\n\n\n  /**\n   * Rotation marker and small connectin handle\n   */\n  _createRotationHandlers: function() {\n    var map     = this._map;\n    var latlngs = this._rect._latlngs[0];\n\n    var bottom   = new L.LatLng(\n      (latlngs[0].lat + latlngs[3].lat) / 2,\n      (latlngs[0].lng + latlngs[3].lng) / 2);\n    // hehe, top is a reserved word\n    var topPoint = new L.LatLng(\n      (latlngs[1].lat + latlngs[2].lat) / 2,\n      (latlngs[1].lng + latlngs[2].lng) / 2);\n\n    var handlerPosition = map.layerPointToLatLng(\n      L.LineUtil.pointOnLine(\n        map.latLngToLayerPoint(bottom),\n        map.latLngToLayerPoint(topPoint),\n        this.options.handleLength)\n    );\n\n    this._handleLine = new L.Polyline([topPoint, handlerPosition],\n      this.options.rotateHandleOptions).addTo(this._handlersGroup);\n    var RotateHandleClass = this.options.rotateHandleClass;\n    this._rotationMarker = new RotateHandleClass(handlerPosition,\n      this.options.handlerOptions)\n      .addTo(this._handlersGroup)\n      .on('mousedown', this._onRotateStart, this);\n\n    this._rotationOrigin = new L.LatLng(\n      (topPoint.lat + bottom.lat) / 2,\n      (topPoint.lng + bottom.lng) / 2\n    );\n\n    this._handlers.push(this._rotationMarker);\n  },\n\n\n  /**\n   * @return {L.LatLng}\n   */\n  _getRotationOrigin: function() {\n    var latlngs = this._rect._latlngs[0];\n    var lb = latlngs[0];\n    var rt = latlngs[2];\n\n    return new L.LatLng(\n      (lb.lat + rt.lat) / 2,\n      (lb.lng + rt.lng) / 2\n    );\n  },\n\n\n  /**\n   * Secure the rotation origin\n   * @param  {Event} evt\n   */\n  _onRotateStart: function(evt) {\n    var map = this._map;\n\n    map.dragging.disable();\n\n    this._originMarker     = null;\n    this._rotationOriginPt = map.latLngToLayerPoint(this._getRotationOrigin());\n    this._rotationStart    = evt.layerPoint;\n    this._initialMatrix    = this._matrix.clone();\n\n    this._angle = 0;\n    this._path._map\n      .on('mousemove', this._onRotate,     this)\n      .on('mouseup',   this._onRotateEnd, this);\n\n    this._cachePoints();\n    this._path\n      .fire('transformstart',   { layer: this._path })\n      .fire('rotatestart', { layer: this._path, rotation: 0 });\n  },\n\n\n  /**\n   * @param  {Event} evt\n   */\n  _onRotate: function(evt) {\n    var pos = evt.layerPoint;\n    var previous = this._rotationStart;\n    var origin   = this._rotationOriginPt;\n\n    // rotation step angle\n    this._angle = Math.atan2(pos.y - origin.y, pos.x - origin.x) -\n                  Math.atan2(previous.y - origin.y, previous.x - origin.x);\n\n    this._matrix = this._initialMatrix\n      .clone()\n      .rotate(this._angle, origin)\n      .flip();\n\n    this._update();\n    this._path.fire('rotate', { layer: this._path, rotation: this._angle });\n  },\n\n\n  /**\n   * @param  {Event} evt\n   */\n  _onRotateEnd: function(evt) {\n    this._path._map\n      .off('mousemove', this._onRotate, this)\n      .off('mouseup',   this._onRotateEnd, this);\n\n    this._apply();\n    this._path.fire('rotateend', { layer: this._path, rotation: this._angle });\n  },\n\n\n  /**\n   * @param  {Event} evt\n   */\n  _onScaleStart: function(evt) {\n    var marker = evt.target;\n    var map = this._map;\n\n    map.dragging.disable();\n\n    this._activeMarker = marker;\n\n    this._originMarker = this._handlers[(marker.options.index + 2) % 4];\n    this._scaleOrigin  = this._originMarker.getLatLng();\n\n    this._initialMatrix = this._matrix.clone();\n    this._cachePoints();\n\n    this._map\n      .on('mousemove', this._onScale,    this)\n      .on('mouseup',   this._onScaleEnd, this);\n    this._initialDist  = this._originMarker._point.distanceTo(this._activeMarker._point);\n    this._initialDistX = this._originMarker._point.x - this._activeMarker._point.x;\n    this._initialDistY = this._originMarker._point.y - this._activeMarker._point.y;\n\n    this._path\n      .fire('transformstart', { layer: this._path })\n      .fire('scalestart', { layer: this._path, scale: L.point(1, 1) });\n\n    this._map.removeLayer(this._handleLine);\n    this._map.removeLayer(this._rotationMarker);\n\n    //this._handleLine = this._rotationMarker = null;\n  },\n\n\n  /**\n   * @param  {Event} evt\n   */\n  _onScale: function(evt) {\n    var originPoint = this._originMarker._point;\n    var ratioX, ratioY;\n    if (this.options.uniformScaling) {\n      ratioX = originPoint.distanceTo(evt.layerPoint) / this._initialDist;\n      ratioY = ratioX;\n    } else {\n      ratioX = (originPoint.x - evt.layerPoint.x) / this._initialDistX;\n      ratioY = (originPoint.y - evt.layerPoint.y) / this._initialDistY;\n    }\n\n    this._scale = new L.Point(ratioX, ratioY);\n\n    // update matrix\n    this._matrix = this._initialMatrix\n      .clone()\n      .scale(this._scale, originPoint);\n\n    this._update();\n    this._path.fire('scale', {\n      layer: this._path, scale: this._scale.clone() });\n  },\n\n\n  /**\n   * Scaling complete\n   * @param  {Event} evt\n   */\n  _onScaleEnd: function(evt) {\n    this._map\n      .off('mousemove', this._onScale,    this)\n      .off('mouseup',   this._onScaleEnd, this);\n\n    this._map.addLayer(this._handleLine);\n    this._map.addLayer(this._rotationMarker);\n\n    this._apply();\n    this._path.fire('scaleend', {\n      layer: this._path, scale: this._scale.clone() });\n  },\n\n\n  /**\n   * Cache current handlers positions\n   */\n  _cachePoints: function() {\n    this._handlersGroup.eachLayer(function(layer) {\n      layer.bringToFront();\n    });\n    for (var i = 0, len = this._handlers.length; i < len; i++) {\n      var handler = this._handlers[i];\n      handler._initialPoint = handler._point.clone();\n    }\n  },\n\n\n  /**\n   * Bounding polygon\n   * @return {L.Polygon}\n   */\n  _getBoundingPolygon: function() {\n    if (this._rectShape) {\n      return L.GeoJSON.geometryToLayer(\n        this._rectShape, this.options.boundsOptions);\n    } else {\n      return new L.Rectangle(\n        this._path.getBounds(), this.options.boundsOptions);\n    }\n  },\n\n\n  /**\n   * Create corner marker\n   * @param  {L.LatLng} latlng\n   * @param  {Number}   type one of L.Handler.PathTransform.HandlerTypes\n   * @param  {Number}   index\n   * @return {L.Handler.PathTransform.Handle}\n   */\n  _createHandler: function(latlng, type, index) {\n    var HandleClass = this.options.handleClass;\n    var marker = new HandleClass(latlng,\n      L.Util.extend({}, this.options.handlerOptions, {\n        className: 'leaflet-drag-transform-marker drag-marker--' +\n                   index + ' drag-marker--' + type,\n        index:     index,\n        type:      type\n      })\n    );\n\n    marker.on('mousedown', this._onScaleStart, this);\n    return marker;\n  },\n\n\n  /**\n   * Hide(not remove) the handlers layer\n   */\n  _hideHandlers: function() {\n    this._map.removeLayer(this._handlersGroup);\n  },\n\n\n  /**\n   * Hide handlers and rectangle\n   */\n  _onDragStart: function() {\n    this._hideHandlers();\n  },\n\n\n  /**\n   * Drag rectangle, re-create handlers\n   */\n  _onDragEnd: function(evt) {\n    var rect = this._rect;\n    var matrix = (evt.layer ? evt.layer : this._path).dragging._matrix.slice();\n\n    if (!rect.dragging) {\n      rect.dragging = new L.Handler.PathDrag(rect);\n    }\n    rect.dragging.enable();\n    this._map.addLayer(rect);\n    rect.dragging._transformPoints(matrix);\n    rect._updatePath();\n    rect._project();\n    rect.dragging.disable();\n\n    this._map.addLayer(this._handlersGroup);\n    this._updateHandlers();\n\n    this._path.fire('transformed', {\n      scale: L.point(1, 1),\n      rotation: 0,\n      matrix: L.matrix.apply(undefined, matrix),\n      translate: L.point(matrix[4], matrix[5]),\n      layer: this._path\n    });\n  }\n});\n\n\nL.Path.addInitHook(function() {\n  if (this.options.transform) {\n    this.transform = new L.Handler.PathTransform(this, this.options.transform);\n  }\n});\n","/**\n * Point on the line segment or its extention\n *\n * @param  {L.Point} start\n * @param  {L.Point} final\n * @param  {Number}  distPx\n * @return {L.Point}\n */\nL.LineUtil.pointOnLine = function(start, final, distPx) {\n  var ratio = 1 + distPx / start.distanceTo(final);\n  return new L.Point(\n    start.x + (final.x - start.x) * ratio,\n    start.y + (final.y - start.y) * ratio\n  );\n};\n\n\n/**\n * Deep merge objects.\n */\nL.Util.merge = function() {\n  var i = 1;\n  var key, val;\n  var obj = arguments[i];\n\n  function isObject(object) {\n    return Object.prototype.toString.call(object) === '[object Object]';\n  }\n\n  // make sure we don't modify source element and it's properties\n  // objects are passed by reference\n  var target = arguments[0];\n\n  while (obj) {\n    obj = arguments[i++];\n    for (key in obj) {\n      if (!obj.hasOwnProperty(key)) {\n        continue;\n      }\n\n      val = obj[key];\n\n      if (isObject(val) && isObject(target[key])){\n        target[key] = L.Util.merge(target[key], val);\n      } else {\n        target[key] = val;\n      }\n    }\n  }\n  return target;\n};\n"]} +//# 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e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})","var L = require('leaflet');\r\nvar DragHandler = require('../../index');\r\n\r\nL.Icon.Default.imagePath = \"http://cdn.leafletjs.com/leaflet-0.7/images\";\r\n\r\n////////////////////////////////////////////////////////////////////////////////\r\nvar map = global.map = new L.Map('map', {\r\n  // crs: L.CRS.EPSG4326 // that was tested as well\r\n}).setView([22.42658, 114.1952], 11);\r\n\r\nL.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {\r\n  attribution: '&copy; ' +\r\n    '<a href=\"http://osm.org/copyright\">OSM</a> contributors'\r\n}).addTo(map);\r\n\r\n////////////////////////////////////////////////////////////////////////////////\r\nfunction interpolateArr(array, insert) {\r\n  var res = [];\r\n  array.forEach(function(p, i, arr) {\r\n    res.push(p.concat());\r\n\r\n    if (i < arr.length - 1) {\r\n      var diff = [arr[i + 1][0] - p[0], arr[i + 1][1] - p[1]];\r\n      for (var i = 1; i < insert; i++) {\r\n        res.push([p[0] + (diff[0] * i) / insert, p[1] + (diff[1] * i) / insert]);\r\n      }\r\n    }\r\n  });\r\n\r\n  return res;\r\n}\r\n\r\n////////////////////////////////////////////////////////////////////////////////\r\nvar polygon = global.polygon = new L.Polygon(\r\n  L.GeoJSON.coordsToLatLngs(\r\n\r\n    // ~ 13 000 points\r\n    interpolateArr([\r\n      [113.97697448730469, 22.403410892712124],\r\n      [113.98658752441405, 22.38373008592495],\r\n      [114.01268005371094, 22.369126397545887],\r\n      [114.02778625488281, 22.38563480185718],\r\n      [114.04701232910156, 22.395157990290755],\r\n      [114.06005859375,    22.413567638369805],\r\n      [114.06280517578125, 22.432609534876796],\r\n      [114.04838562011717, 22.444668051657157],\r\n      [114.04289245605469, 22.44847578656544],\r\n      [114.03259277343749, 22.444668051657157],\r\n      [114.01954650878906, 22.447206553211814],\r\n      [113.99620056152344, 22.436417600763114],\r\n      [113.98178100585938, 22.420549970290875],\r\n      [113.97697448730469, 22.403410892712124]\r\n    ], 1000)\r\n  ), {\r\n    color: '#f00',\r\n    interactive: true,\r\n    draggable: true,\r\n    transform: true\r\n  }).addTo(map);\r\n//polygon.transform.enable();\r\n\r\nvar polyline = global.polyline = new L.Polyline(\r\n  L.GeoJSON.coordsToLatLngs([\r\n    [114.14314270019531, 22.49479484975443],\r\n    [114.1534423828125,  22.485912942320958],\r\n    [114.15206909179688, 22.4732235144781],\r\n    [114.14932250976561, 22.459898363943893],\r\n    [114.15962219238281, 22.447206553211814],\r\n    [114.169921875,      22.447206553211814],\r\n    [114.19395446777344, 22.459898363943893],\r\n    [114.20631408691406, 22.46116748110935],\r\n    [114.21180725097655, 22.473858013487614],\r\n    [114.22416687011719, 22.471320000009992],\r\n    [114.23721313476562, 22.476395980457973],\r\n    [114.24201965332031, 22.49352604073722],\r\n    [114.2303466796875,  22.51572851830351],\r\n    [114.21798706054688, 22.524608511026262],\r\n    [114.20768737792969, 22.524608511026262],\r\n    [114.20768737792969, 22.536024805886974]\r\n  ]), {\r\n    weight: 15,\r\n    draggable: true,\r\n    transform: true\r\n  })\r\n  .bindPopup(\"L.Polyline\")\r\n  .addTo(map);\r\n// polyline.transform.enable();\r\n\r\n\r\nvar polygonWithHole = global.polygonWithHole = new L.Polygon(\r\n    [\r\n      L.GeoJSON.coordsToLatLngs([\r\n        [114.2749786376953,  22.412932863517717],\r\n        [114.28390502929688, 22.40087159030595],\r\n        [114.29008483886717, 22.38880927045556],\r\n        [114.30107116699219, 22.382460260815716],\r\n        [114.31892395019531, 22.391983666602783],\r\n        [114.32304382324219, 22.380555501421533],\r\n        [114.34295654296875, 22.372936203113838],\r\n        [114.334716796875,   22.384364994133303],\r\n        [114.33059692382812, 22.393888269511194],\r\n        [114.32167053222655, 22.40087159030595],\r\n        [114.32785034179688, 22.413567638369805],\r\n        [114.33197021484375, 22.42499308964722],\r\n        [114.32579040527344, 22.430705462748918],\r\n        [114.33197021484375, 22.43959090917266],\r\n        [114.33746337890624, 22.449110398886106],\r\n        [114.33540344238281, 22.461802035333992],\r\n        [114.32510375976562, 22.464340223177118],\r\n        [114.32922363281249, 22.472589012561954],\r\n        [114.32373046875,    22.477030464933307],\r\n        [114.31961059570312, 22.478933900916928],\r\n        [114.3017578125,     22.466243833549445],\r\n        [114.30244445800781, 22.457360094750083],\r\n        [114.29283142089844, 22.454821779075832],\r\n        [114.28390502929688, 22.45101421842269],\r\n        [114.2749786376953,  22.442764145001707],\r\n        [114.29077148437499, 22.428166659279615],\r\n        [114.27703857421875, 22.420549970290875],\r\n        [114.2749786376953,  22.412932863517717]\r\n      ]),\r\n      L.GeoJSON.coordsToLatLngs([\r\n        [114.30107116699219, 22.43387890178297],\r\n        [114.29351806640625, 22.414202410321302],\r\n        [114.30587768554686, 22.408489358342635],\r\n        [114.32235717773438, 22.421184710331858],\r\n        [114.30107116699219, 22.43387890178297]\r\n      ])\r\n    ], {\r\n      draggable: true,\r\n      transform: true\r\n    }\r\n  )\r\n  .addTo(map);\r\n//polygonWithHole.transform.enable();\r\n\r\nvar multiPolygon = global.multiPolygon = new L.Polygon([\r\n  L.GeoJSON.coordsToLatLngs([\r\n    [114.20562744140625, 22.32085984100593],\r\n    [114.21592712402344, 22.35261603551215],\r\n    [114.26467895507812, 22.351345926606957],\r\n    [114.2749786376953,  22.32403578584038],\r\n    [114.29214477539062, 22.32721165838893],\r\n    [114.3017578125,     22.311966810977616],\r\n    [114.29420471191406, 22.291002427735325],\r\n    [114.29351806640625, 22.272576585413475],\r\n    [114.28390502929688, 22.26177410097435],\r\n    [114.268798828125,   22.281472122783818],\r\n    [114.2749786376953,  22.294814367780518],\r\n    [114.26948547363281, 22.30243793590448],\r\n    [114.27017211914062, 22.31514295816939],\r\n    [114.2578125,        22.311966810977616],\r\n    [114.24751281738281, 22.299896792751927],\r\n    [114.24545288085938, 22.291002427735325],\r\n    [114.22966003417969, 22.307520083522476],\r\n    [114.22073364257812, 22.305614299837046],\r\n    [114.20562744140625, 22.32085984100593]\r\n  ]),\r\n  L.GeoJSON.coordsToLatLngs([\r\n    [114.31549072265625, 22.33927931468312],\r\n    [114.32029724121094, 22.326576489662482],\r\n    [114.32991027832031, 22.326576489662482],\r\n    [114.33334350585938, 22.332292904091716],\r\n    [114.32304382324219, 22.3424548401465],\r\n    [114.31549072265625, 22.33927931468312]\r\n  ]),\r\n  L.GeoJSON.coordsToLatLngs([\r\n    [114.27909851074219, 22.244615500323064],\r\n    [114.28115844726562, 22.251606295132948],\r\n    [114.28665161132812, 22.255419308858556],\r\n    [114.29969787597656, 22.26113863474449],\r\n    [114.2962646484375,  22.250970782750866],\r\n    [114.29489135742188, 22.24080219246335],\r\n    [114.29008483886717, 22.238895499613232],\r\n    [114.27909851074219, 22.244615500323064]\r\n  ])\r\n], {\r\n  draggable: true,\r\n  transform: true,\r\n  color: '#092'\r\n}).bindPopup('MultiPolygon').addTo(map);\r\n//multiPolygon.transform.enable();\r\n\r\nvar multiPolyline = global.multiPolyline = new L.Polyline([\r\n  L.GeoJSON.coordsToLatLngs([\r\n    [113.89869689941406, 22.399601921706953],\r\n    [113.89801025390625, 22.422454181709707],\r\n    [113.90350341796875, 22.43324421978117],\r\n    [113.90968322753906, 22.449110398886106],\r\n    [113.90693664550781, 22.478299425162852],\r\n    [113.9234161376953,  22.488450688325408],\r\n    [113.9337158203125,  22.483375149789623],\r\n    [113.9447021484375,  22.492257220085193],\r\n    [113.95225524902344, 22.51255695405145]\r\n  ]),\r\n\r\n  L.GeoJSON.coordsToLatLngs([\r\n    [113.8677978515625,  22.39261853713738],\r\n    [113.86917114257811, 22.42753195115699],\r\n    [113.9234161376953,  22.462436586653148],\r\n    [113.94813537597656, 22.473858013487614],\r\n    [113.9783477783203,  22.49923558968306],\r\n    [113.99688720703125, 22.51192263246886],\r\n    [114.01336669921875, 22.501138720300254],\r\n    [114.02503967285155, 22.508116641853675]\r\n  ])\r\n], {\r\n  draggable: true,\r\n  transform: true,\r\n  color: '#e90'\r\n}).bindPopup('MultiPolyline').addTo(map);\r\n// multiPolyline.transform.enable();\r\n\r\nvar layers = [polygon, polyline, multiPolyline, multiPolygon, polygonWithHole];\r\n\r\nfunction update() {\r\n  L.Util.requestAnimFrame(function() {\r\n    var dragging = document.querySelector('#dragging').checked;\r\n    var scaling = document.querySelector('#scaling').checked;\r\n    var rotation = document.querySelector('#rotation').checked;\r\n    var uniform  = document.querySelector('#uniform').checked;\r\n\r\n    layers.forEach(function(layer) {\r\n\r\n      if (layer.dragging) {\r\n        layer.dragging[dragging ? 'enable': 'disable']();\r\n      } else {\r\n        layer.eachLayer(function(sublayer) {\r\n          sublayer.dragging[dragging ? 'enable': 'disable']();\r\n        });\r\n      }\r\n\r\n\r\n      layer.transform.setOptions({\r\n        scaling: scaling,\r\n        rotation: rotation,\r\n        uniformScaling: uniform\r\n      }).enable();\r\n    });\r\n  });\r\n}\r\n\r\n[].slice.call(document.querySelectorAll('input[type=checkbox]'))\r\n.forEach(function(checkbox) {\r\n  L.DomEvent.on(checkbox, 'change', update);\r\n});\r\n\r\nupdate();\r\n","var L = require('leaflet');\r\nrequire('leaflet-path-drag');\r\nrequire('./src/Util');\r\nrequire('./src/Matrix');\r\nrequire('./src/Path.Transform');\r\n","require('./src/SVG');\nrequire('./src/SVG.VML');\nrequire('./src/Canvas');\nrequire('./src/Path.Transform');\nrequire('./src/Path.Drag');\n\nmodule.exports = L.Path.Drag;\n","L.Util.trueFn = function() {\n  return true;\n};\n\nL.Canvas.include({\n\n  /**\n   * Do nothing\n   * @param  {L.Path} layer\n   */\n  _resetTransformPath: function(layer) {\n    if (!this._containerCopy) return;\n\n    delete this._containerCopy;\n\n    if (layer._containsPoint_) {\n      layer._containsPoint = layer._containsPoint_;\n      delete layer._containsPoint_;\n\n      this._requestRedraw(layer);\n    }\n  },\n\n\n  /**\n   * Algorithm outline:\n   *\n   * 1. pre-transform - clear the path out of the canvas, copy canvas state\n   * 2. at every frame:\n   *    2.1. save\n   *    2.2. redraw the canvas from saved one\n   *    2.3. transform\n   *    2.4. draw path\n   *    2.5. restore\n   * 3. Repeat\n   *\n   * @param  {L.Path}         layer\n   * @param  {Array.<Number>} matrix\n   */\n  transformPath: function(layer, matrix) {\n    var copy   = this._containerCopy;\n    var ctx    = this._ctx, copyCtx;\n    var m      = L.Browser.retina ? 2 : 1;\n    var bounds = this._bounds;\n    var size   = bounds.getSize();\n    var pos    = bounds.min;\n\n    if (!copy) { // get copy of all rendered layers\n      copy = this._containerCopy = document.createElement('canvas');\n      copyCtx = copy.getContext('2d');\n      // document.body.appendChild(copy);\n\n      copy.width  = m * size.x;\n      copy.height = m * size.y;\n\n      this._removePath(layer);\n      this._redraw();\n\n      copyCtx.translate(m * bounds.min.x, m * bounds.min.y);\n      copyCtx.drawImage(this._container, 0, 0);\n      this._initPath(layer);\n\n      // avoid flickering because of the 'mouseover's\n      layer._containsPoint_ = layer._containsPoint;\n      layer._containsPoint = L.Util.trueFn;\n    }\n\n    ctx.save();\n    ctx.clearRect(pos.x, pos.y, size.x * m, size.y * m);\n    ctx.setTransform(1, 0, 0, 1, 0, 0);\n    ctx.restore();\n    ctx.save();\n\n    ctx.drawImage(this._containerCopy, 0, 0, size.x, size.y);\n    ctx.transform.apply(ctx, matrix);\n\n    // now draw one layer only\n    this._drawing = true;\n    layer._updatePath();\n    this._drawing = false;\n\n    ctx.restore();\n  }\n\n});\n","/**\n * Drag handler\n * @class L.Path.Drag\n * @extends {L.Handler}\n */\nL.Handler.PathDrag = L.Handler.extend( /** @lends  L.Path.Drag.prototype */ {\n\n  statics: {\n    DRAGGING_CLS: 'leaflet-path-draggable',\n  },\n\n\n  /**\n   * @param  {L.Path} path\n   * @constructor\n   */\n  initialize: function(path) {\n\n    /**\n     * @type {L.Path}\n     */\n    this._path = path;\n\n    /**\n     * @type {Array.<Number>}\n     */\n    this._matrix = null;\n\n    /**\n     * @type {L.Point}\n     */\n    this._startPoint = null;\n\n    /**\n     * @type {L.Point}\n     */\n    this._dragStartPoint = null;\n\n    /**\n     * @type {Boolean}\n     */\n    this._mapDraggingWasEnabled = false;\n\n  },\n\n  /**\n   * Enable dragging\n   */\n  addHooks: function() {\n    this._path.on('mousedown', this._onDragStart, this);\n\n    this._path.options.className = this._path.options.className ?\n        (this._path.options.className + ' ' + L.Handler.PathDrag.DRAGGING_CLS) :\n         L.Handler.PathDrag.DRAGGING_CLS;\n\n    if (this._path._path) {\n      L.DomUtil.addClass(this._path._path, L.Handler.PathDrag.DRAGGING_CLS);\n    }\n  },\n\n  /**\n   * Disable dragging\n   */\n  removeHooks: function() {\n    this._path.off('mousedown', this._onDragStart, this);\n\n    this._path.options.className = this._path.options.className\n      .replace(new RegExp('\\\\s+' + L.Handler.PathDrag.DRAGGING_CLS), '');\n    if (this._path._path) {\n      L.DomUtil.removeClass(this._path._path, L.Handler.PathDrag.DRAGGING_CLS);\n    }\n  },\n\n  /**\n   * @return {Boolean}\n   */\n  moved: function() {\n    return this._path._dragMoved;\n  },\n\n  /**\n   * Start drag\n   * @param  {L.MouseEvent} evt\n   */\n  _onDragStart: function(evt) {\n    var eventType = evt.originalEvent._simulated ? 'touchstart' : evt.originalEvent.type;\n\n    this._mapDraggingWasEnabled = false;\n    this._startPoint = evt.containerPoint.clone();\n    this._dragStartPoint = evt.containerPoint.clone();\n    this._matrix = [1, 0, 0, 1, 0, 0];\n    L.DomEvent.stop(evt.originalEvent);\n\n    L.DomUtil.addClass(this._path._renderer._container, 'leaflet-interactive');\n    L.DomEvent\n      .on(document, L.Draggable.MOVE[eventType], this._onDrag,    this)\n      .on(document, L.Draggable.END[eventType],  this._onDragEnd, this);\n\n    if (this._path._map.dragging.enabled()) {\n      // I guess it's required because mousdown gets simulated with a delay\n      //this._path._map.dragging._draggable._onUp(evt);\n\n      this._path._map.dragging.disable();\n      this._mapDraggingWasEnabled = true;\n    }\n    this._path._dragMoved = false;\n\n    if (this._path._popup) { // that might be a case on touch devices as well\n      this._path._popup._close();\n    }\n\n    this._replaceCoordGetters(evt);\n  },\n\n  /**\n   * Dragging\n   * @param  {L.MouseEvent} evt\n   */\n  _onDrag: function(evt) {\n    L.DomEvent.stop(evt);\n\n    var first = (evt.touches && evt.touches.length >= 1 ? evt.touches[0] : evt);\n    var containerPoint = this._path._map.mouseEventToContainerPoint(first);\n\n    // skip taps\n    if (evt.type === 'touchmove' && !this._path._dragMoved) {\n      var totalMouseDragDistance = this._dragStartPoint.distanceTo(containerPoint);\n      if (totalMouseDragDistance <= this._path._map.options.tapTolerance) {\n        return;\n      }\n    }\n\n    var x = containerPoint.x;\n    var y = containerPoint.y;\n\n    var dx = x - this._startPoint.x;\n    var dy = y - this._startPoint.y;\n\n    // Send events only if point was moved\n    if (dx || dy) {\n      if (!this._path._dragMoved) {\n        this._path._dragMoved = true;\n        this._path.fire('dragstart', evt);\n        // we don't want that to happen on click\n        this._path.bringToFront();\n      }\n\n      this._matrix[4] += dx;\n      this._matrix[5] += dy;\n\n      this._startPoint.x = x;\n      this._startPoint.y = y;\n\n      this._path.fire('predrag', evt);\n      this._path._transform(this._matrix);\n      this._path.fire('drag', evt);\n    }\n  },\n\n  /**\n   * Dragging stopped, apply\n   * @param  {L.MouseEvent} evt\n   */\n  _onDragEnd: function(evt) {\n    var containerPoint = this._path._map.mouseEventToContainerPoint(evt);\n    var moved = this.moved();\n\n    // apply matrix\n    if (moved) {\n      this._transformPoints(this._matrix);\n      this._path._updatePath();\n      this._path._project();\n      this._path._transform(null);\n\n      L.DomEvent.stop(evt);\n    }\n\n\n    L.DomEvent\n      .off(document, 'mousemove touchmove', this._onDrag, this)\n      .off(document, 'mouseup touchend',    this._onDragEnd, this);\n\n    this._restoreCoordGetters();\n\n    // consistency\n    if (moved) {\n      this._path.fire('dragend', {\n        distance: Math.sqrt(\n          L.LineUtil._sqDist(this._dragStartPoint, containerPoint)\n        )\n      });\n\n      // hack for skipping the click in canvas-rendered layers\n      var contains = this._path._containsPoint;\n      this._path._containsPoint = L.Util.falseFn;\n      L.Util.requestAnimFrame(function() {\n        L.DomEvent._skipped({ type: 'click' });\n        this._path._containsPoint = contains;\n      }, this);\n    }\n\n    this._matrix          = null;\n    this._startPoint      = null;\n    this._dragStartPoint  = null;\n    this._path._dragMoved = false;\n\n    if (this._mapDraggingWasEnabled) {\n      if (moved) L.DomEvent._fakeStop({ type: 'click' });\n      this._path._map.dragging.enable();\n    }\n  },\n\n\n  /**\n   * Applies transformation, does it in one sweep for performance,\n   * so don't be surprised about the code repetition.\n   *\n   * [ x ]   [ a  b  tx ] [ x ]   [ a * x + b * y + tx ]\n   * [ y ] = [ c  d  ty ] [ y ] = [ c * x + d * y + ty ]\n   *\n   * @param {Array.<Number>} matrix\n   */\n  _transformPoints: function(matrix, dest) {\n    var path = this._path;\n    var i, len, latlng;\n\n    var px = L.point(matrix[4], matrix[5]);\n\n    var crs = path._map.options.crs;\n    var transformation = crs.transformation;\n    var scale = crs.scale(path._map.getZoom());\n    var projection = crs.projection;\n\n    var diff = transformation.untransform(px, scale)\n      .subtract(transformation.untransform(L.point(0, 0), scale));\n    var applyTransform = !dest;\n\n    path._bounds = new L.LatLngBounds();\n\n    // console.time('transform');\n    // all shifts are in-place\n    if (path._point) { // L.Circle\n      dest = projection.unproject(\n        projection.project(path._latlng)._add(diff));\n      if (applyTransform) {\n        path._latlng = dest;\n        path._point._add(px);\n      }\n    } else if (path._rings || path._parts) { // everything else\n      var rings   = path._rings || path._parts;\n      var latlngs = path._latlngs;\n      dest = dest || latlngs;\n      if (!L.Util.isArray(latlngs[0])) { // polyline\n        latlngs = [latlngs];\n        dest    = [dest];\n      }\n      for (i = 0, len = rings.length; i < len; i++) {\n        dest[i] = dest[i] || [];\n        for (var j = 0, jj = rings[i].length; j < jj; j++) {\n          latlng     = latlngs[i][j];\n          dest[i][j] = projection\n            .unproject(projection.project(latlng)._add(diff));\n          if (applyTransform) {\n            path._bounds.extend(latlngs[i][j]);\n            rings[i][j]._add(px);\n          }\n        }\n      }\n    }\n    return dest;\n    // console.timeEnd('transform');\n  },\n\n\n\n  /**\n   * If you want to read the latlngs during the drag - your right,\n   * but they have to be transformed\n   */\n  _replaceCoordGetters: function() {\n    if (this._path.getLatLng) { // Circle, CircleMarker\n      this._path.getLatLng_ = this._path.getLatLng;\n      this._path.getLatLng = L.Util.bind(function() {\n        return this.dragging._transformPoints(this.dragging._matrix, {});\n      }, this._path);\n    } else if (this._path.getLatLngs) {\n      this._path.getLatLngs_ = this._path.getLatLngs;\n      this._path.getLatLngs = L.Util.bind(function() {\n        return this.dragging._transformPoints(this.dragging._matrix, []);\n      }, this._path);\n    }\n  },\n\n\n  /**\n   * Put back the getters\n   */\n  _restoreCoordGetters: function() {\n    if (this._path.getLatLng_) {\n      this._path.getLatLng = this._path.getLatLng_;\n      delete this._path.getLatLng_;\n    } else if (this._path.getLatLngs_) {\n      this._path.getLatLngs = this._path.getLatLngs_;\n      delete this._path.getLatLngs_;\n    }\n  }\n\n});\n\n\n/**\n * @param  {L.Path} layer\n * @return {L.Path}\n */\nL.Handler.PathDrag.makeDraggable = function(layer) {\n  layer.dragging = new L.Handler.PathDrag(layer);\n  return layer;\n};\n\n\n/**\n * Also expose as a method\n * @return {L.Path}\n */\nL.Path.prototype.makeDraggable = function() {\n  return L.Handler.PathDrag.makeDraggable(this);\n};\n\n\nL.Path.addInitHook(function() {\n  if (this.options.draggable) {\n    // ensure interactive\n    this.options.interactive = true;\n\n    if (this.dragging) {\n      this.dragging.enable();\n    } else {\n      L.Handler.PathDrag.makeDraggable(this);\n      this.dragging.enable();\n    }\n  } else if (this.dragging) {\n    this.dragging.disable();\n  }\n});\n","/**\n * Leaflet vector features drag functionality\n * @author Alexander Milevski <info@w8r.name>\n * @preserve\n */\n\n/**\n * Matrix transform path for SVG/VML\n * Renderer-independent\n */\nL.Path.include({\n\n\t/**\n\t * Applies matrix transformation to SVG\n\t * @param {Array.<Number>?} matrix\n\t */\n\t_transform: function(matrix) {\n\t\tif (this._renderer) {\n\t\t\tif (matrix) {\n\t\t\t\tthis._renderer.transformPath(this, matrix);\n\t\t\t} else {\n\t\t\t\t// reset transform matrix\n\t\t\t\tthis._renderer._resetTransformPath(this);\n\t\t\t\tthis._update();\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\t/**\n\t * Check if the feature was dragged, that'll supress the click event\n\t * on mouseup. That fixes popups for example\n\t *\n\t * @param  {MouseEvent} e\n\t */\n\t_onMouseClick: function(e) {\n\t\tif ((this.dragging && this.dragging.moved()) ||\n\t\t\t(this._map.dragging && this._map.dragging.moved())) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._fireMouseEvent(e);\n\t}\n\n});\n","L.SVG.include(!L.Browser.vml ? {} : {\n\n\t/**\n\t * Reset transform matrix\n\t */\n\t_resetTransformPath: function(layer) {\n\t\tif (layer._skew) {\n\t\t\t// super important! workaround for a 'jumping' glitch:\n\t\t\t// disable transform before removing it\n\t\t\tlayer._skew.on = false;\n\t\t\tlayer._path.removeChild(layer._skew);\n\t\t\tlayer._skew = null;\n\t\t}\n\t},\n\n\t/**\n\t * Applies matrix transformation to VML\n\t * @param {L.Path}         layer\n\t * @param {Array.<Number>} matrix\n\t */\n\ttransformPath: function(layer, matrix) {\n\t\tvar skew = layer._skew;\n\n\t\tif (!skew) {\n\t\t\tskew = L.SVG.create('skew');\n\t\t\tlayer._path.appendChild(skew);\n\t\t\tskew.style.behavior = 'url(#default#VML)';\n\t\t\tlayer._skew = skew;\n\t\t}\n\n\t\t// handle skew/translate separately, cause it's broken\n\t\tvar mt = matrix[0].toFixed(8) + ' ' + matrix[1].toFixed(8) + ' ' +\n\t\t\tmatrix[2].toFixed(8) + ' ' + matrix[3].toFixed(8) + ' 0 0';\n\t\tvar offset = Math.floor(matrix[4]).toFixed() + ', ' +\n\t\t\tMath.floor(matrix[5]).toFixed() + '';\n\n\t\tvar s = this._path.style;\n\t\tvar l = parseFloat(s.left);\n\t\tvar t = parseFloat(s.top);\n\t\tvar w = parseFloat(s.width);\n\t\tvar h = parseFloat(s.height);\n\n\t\tif (isNaN(l))       l = 0;\n\t\tif (isNaN(t))       t = 0;\n\t\tif (isNaN(w) || !w) w = 1;\n\t\tif (isNaN(h) || !h) h = 1;\n\n\t\tvar origin = (-l / w - 0.5).toFixed(8) + ' ' + (-t / h - 0.5).toFixed(8);\n\n\t\tskew.on = 'f';\n\t\tskew.matrix = mt;\n\t\tskew.origin = origin;\n\t\tskew.offset = offset;\n\t\tskew.on = true;\n\t}\n\n});\n","L.SVG.include({\n\n\t/**\n\t * Reset transform matrix\n\t */\n\t_resetTransformPath: function(layer) {\n\t\tlayer._path.setAttributeNS(null, 'transform', '');\n\t},\n\n\t/**\n\t * Applies matrix transformation to SVG\n\t * @param {L.Path}         layer\n\t * @param {Array.<Number>} matrix\n\t */\n\ttransformPath: function(layer, matrix) {\n\t\tlayer._path.setAttributeNS(null, 'transform',\n\t\t\t'matrix(' + matrix.join(' ') + ')');\n\t}\n\n});\n","/*\n Leaflet 1.0.3, a JS library for interactive maps. http://leafletjs.com\n (c) 2010-2016 Vladimir Agafonkin, (c) 2010-2011 CloudMade\n*/\n(function (window, document, undefined) {\r\nvar L = {\r\n\tversion: \"1.0.3\"\r\n};\r\n\r\nfunction expose() {\r\n\tvar oldL = window.L;\r\n\r\n\tL.noConflict = function () {\r\n\t\twindow.L = oldL;\r\n\t\treturn this;\r\n\t};\r\n\r\n\twindow.L = L;\r\n}\r\n\r\n// define Leaflet for Node module pattern loaders, including Browserify\r\nif (typeof module === 'object' && typeof module.exports === 'object') {\r\n\tmodule.exports = L;\r\n\r\n// define Leaflet as an AMD module\r\n} else if (typeof define === 'function' && define.amd) {\r\n\tdefine(L);\r\n}\r\n\r\n// define Leaflet as a global L variable, saving the original L to restore later if needed\r\nif (typeof window !== 'undefined') {\r\n\texpose();\r\n}\r\n\n\n\n/*\r\n * @namespace Util\r\n *\r\n * Various utility functions, used by Leaflet internally.\r\n */\r\n\r\nL.Util = {\r\n\r\n\t// @function extend(dest: Object, src?: Object): Object\r\n\t// Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut.\r\n\textend: function (dest) {\r\n\t\tvar i, j, len, src;\r\n\r\n\t\tfor (j = 1, len = arguments.length; j < len; j++) {\r\n\t\t\tsrc = arguments[j];\r\n\t\t\tfor (i in src) {\r\n\t\t\t\tdest[i] = src[i];\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn dest;\r\n\t},\r\n\r\n\t// @function create(proto: Object, properties?: Object): Object\r\n\t// Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create)\r\n\tcreate: Object.create || (function () {\r\n\t\tfunction F() {}\r\n\t\treturn function (proto) {\r\n\t\t\tF.prototype = proto;\r\n\t\t\treturn new F();\r\n\t\t};\r\n\t})(),\r\n\r\n\t// @function bind(fn: Function, …): Function\r\n\t// Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).\r\n\t// Has a `L.bind()` shortcut.\r\n\tbind: function (fn, obj) {\r\n\t\tvar slice = Array.prototype.slice;\r\n\r\n\t\tif (fn.bind) {\r\n\t\t\treturn fn.bind.apply(fn, slice.call(arguments, 1));\r\n\t\t}\r\n\r\n\t\tvar args = slice.call(arguments, 2);\r\n\r\n\t\treturn function () {\r\n\t\t\treturn fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);\r\n\t\t};\r\n\t},\r\n\r\n\t// @function stamp(obj: Object): Number\r\n\t// Returns the unique ID of an object, assiging it one if it doesn't have it.\r\n\tstamp: function (obj) {\r\n\t\t/*eslint-disable */\r\n\t\tobj._leaflet_id = obj._leaflet_id || ++L.Util.lastId;\r\n\t\treturn obj._leaflet_id;\r\n\t\t/*eslint-enable */\r\n\t},\r\n\r\n\t// @property lastId: Number\r\n\t// Last unique ID used by [`stamp()`](#util-stamp)\r\n\tlastId: 0,\r\n\r\n\t// @function throttle(fn: Function, time: Number, context: Object): Function\r\n\t// Returns a function which executes function `fn` with the given scope `context`\r\n\t// (so that the `this` keyword refers to `context` inside `fn`'s code). The function\r\n\t// `fn` will be called no more than one time per given amount of `time`. The arguments\r\n\t// received by the bound function will be any arguments passed when binding the\r\n\t// function, followed by any arguments passed when invoking the bound function.\r\n\t// Has an `L.bind` shortcut.\r\n\tthrottle: function (fn, time, context) {\r\n\t\tvar lock, args, wrapperFn, later;\r\n\r\n\t\tlater = function () {\r\n\t\t\t// reset lock and call if queued\r\n\t\t\tlock = false;\r\n\t\t\tif (args) {\r\n\t\t\t\twrapperFn.apply(context, args);\r\n\t\t\t\targs = false;\r\n\t\t\t}\r\n\t\t};\r\n\r\n\t\twrapperFn = function () {\r\n\t\t\tif (lock) {\r\n\t\t\t\t// called too soon, queue to call later\r\n\t\t\t\targs = arguments;\r\n\r\n\t\t\t} else {\r\n\t\t\t\t// call and lock until later\r\n\t\t\t\tfn.apply(context, arguments);\r\n\t\t\t\tsetTimeout(later, time);\r\n\t\t\t\tlock = true;\r\n\t\t\t}\r\n\t\t};\r\n\r\n\t\treturn wrapperFn;\r\n\t},\r\n\r\n\t// @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number\r\n\t// Returns the number `num` modulo `range` in such a way so it lies within\r\n\t// `range[0]` and `range[1]`. The returned value will be always smaller than\r\n\t// `range[1]` unless `includeMax` is set to `true`.\r\n\twrapNum: function (x, range, includeMax) {\r\n\t\tvar max = range[1],\r\n\t\t    min = range[0],\r\n\t\t    d = max - min;\r\n\t\treturn x === max && includeMax ? x : ((x - min) % d + d) % d + min;\r\n\t},\r\n\r\n\t// @function falseFn(): Function\r\n\t// Returns a function which always returns `false`.\r\n\tfalseFn: function () { return false; },\r\n\r\n\t// @function formatNum(num: Number, digits?: Number): Number\r\n\t// Returns the number `num` rounded to `digits` decimals, or to 5 decimals by default.\r\n\tformatNum: function (num, digits) {\r\n\t\tvar pow = Math.pow(10, digits || 5);\r\n\t\treturn Math.round(num * pow) / pow;\r\n\t},\r\n\r\n\t// @function trim(str: String): String\r\n\t// Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)\r\n\ttrim: function (str) {\r\n\t\treturn str.trim ? str.trim() : str.replace(/^\\s+|\\s+$/g, '');\r\n\t},\r\n\r\n\t// @function splitWords(str: String): String[]\r\n\t// Trims and splits the string on whitespace and returns the array of parts.\r\n\tsplitWords: function (str) {\r\n\t\treturn L.Util.trim(str).split(/\\s+/);\r\n\t},\r\n\r\n\t// @function setOptions(obj: Object, options: Object): Object\r\n\t// Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut.\r\n\tsetOptions: function (obj, options) {\r\n\t\tif (!obj.hasOwnProperty('options')) {\r\n\t\t\tobj.options = obj.options ? L.Util.create(obj.options) : {};\r\n\t\t}\r\n\t\tfor (var i in options) {\r\n\t\t\tobj.options[i] = options[i];\r\n\t\t}\r\n\t\treturn obj.options;\r\n\t},\r\n\r\n\t// @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String\r\n\t// Converts an object into a parameter URL string, e.g. `{a: \"foo\", b: \"bar\"}`\r\n\t// translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will\r\n\t// be appended at the end. If `uppercase` is `true`, the parameter names will\r\n\t// be uppercased (e.g. `'?A=foo&B=bar'`)\r\n\tgetParamString: function (obj, existingUrl, uppercase) {\r\n\t\tvar params = [];\r\n\t\tfor (var i in obj) {\r\n\t\t\tparams.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));\r\n\t\t}\r\n\t\treturn ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');\r\n\t},\r\n\r\n\t// @function template(str: String, data: Object): String\r\n\t// Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'`\r\n\t// and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string\r\n\t// `('Hello foo, bar')`. You can also specify functions instead of strings for\r\n\t// data values — they will be evaluated passing `data` as an argument.\r\n\ttemplate: function (str, data) {\r\n\t\treturn str.replace(L.Util.templateRe, function (str, key) {\r\n\t\t\tvar value = data[key];\r\n\r\n\t\t\tif (value === undefined) {\r\n\t\t\t\tthrow new Error('No value provided for variable ' + str);\r\n\r\n\t\t\t} else if (typeof value === 'function') {\r\n\t\t\t\tvalue = value(data);\r\n\t\t\t}\r\n\t\t\treturn value;\r\n\t\t});\r\n\t},\r\n\r\n\ttemplateRe: /\\{ *([\\w_\\-]+) *\\}/g,\r\n\r\n\t// @function isArray(obj): Boolean\r\n\t// Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)\r\n\tisArray: Array.isArray || function (obj) {\r\n\t\treturn (Object.prototype.toString.call(obj) === '[object Array]');\r\n\t},\r\n\r\n\t// @function indexOf(array: Array, el: Object): Number\r\n\t// Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)\r\n\tindexOf: function (array, el) {\r\n\t\tfor (var i = 0; i < array.length; i++) {\r\n\t\t\tif (array[i] === el) { return i; }\r\n\t\t}\r\n\t\treturn -1;\r\n\t},\r\n\r\n\t// @property emptyImageUrl: String\r\n\t// Data URI string containing a base64-encoded empty GIF image.\r\n\t// Used as a hack to free memory from unused images on WebKit-powered\r\n\t// mobile devices (by setting image `src` to this string).\r\n\temptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='\r\n};\r\n\r\n(function () {\r\n\t// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/\r\n\r\n\tfunction getPrefixed(name) {\r\n\t\treturn window['webkit' + name] || window['moz' + name] || window['ms' + name];\r\n\t}\r\n\r\n\tvar lastTime = 0;\r\n\r\n\t// fallback for IE 7-8\r\n\tfunction timeoutDefer(fn) {\r\n\t\tvar time = +new Date(),\r\n\t\t    timeToCall = Math.max(0, 16 - (time - lastTime));\r\n\r\n\t\tlastTime = time + timeToCall;\r\n\t\treturn window.setTimeout(fn, timeToCall);\r\n\t}\r\n\r\n\tvar requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer,\r\n\t    cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||\r\n\t               getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };\r\n\r\n\r\n\t// @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number\r\n\t// Schedules `fn` to be executed when the browser repaints. `fn` is bound to\r\n\t// `context` if given. When `immediate` is set, `fn` is called immediately if\r\n\t// the browser doesn't have native support for\r\n\t// [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame),\r\n\t// otherwise it's delayed. Returns a request ID that can be used to cancel the request.\r\n\tL.Util.requestAnimFrame = function (fn, context, immediate) {\r\n\t\tif (immediate && requestFn === timeoutDefer) {\r\n\t\t\tfn.call(context);\r\n\t\t} else {\r\n\t\t\treturn requestFn.call(window, L.bind(fn, context));\r\n\t\t}\r\n\t};\r\n\r\n\t// @function cancelAnimFrame(id: Number): undefined\r\n\t// Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame).\r\n\tL.Util.cancelAnimFrame = function (id) {\r\n\t\tif (id) {\r\n\t\t\tcancelFn.call(window, id);\r\n\t\t}\r\n\t};\r\n})();\r\n\r\n// shortcuts for most used utility functions\r\nL.extend = L.Util.extend;\r\nL.bind = L.Util.bind;\r\nL.stamp = L.Util.stamp;\r\nL.setOptions = L.Util.setOptions;\r\n\n\n\n\r\n// @class Class\r\n// @aka L.Class\r\n\r\n// @section\r\n// @uninheritable\r\n\r\n// Thanks to John Resig and Dean Edwards for inspiration!\r\n\r\nL.Class = function () {};\r\n\r\nL.Class.extend = function (props) {\r\n\r\n\t// @function extend(props: Object): Function\r\n\t// [Extends the current class](#class-inheritance) given the properties to be included.\r\n\t// Returns a Javascript function that is a class constructor (to be called with `new`).\r\n\tvar NewClass = function () {\r\n\r\n\t\t// call the constructor\r\n\t\tif (this.initialize) {\r\n\t\t\tthis.initialize.apply(this, arguments);\r\n\t\t}\r\n\r\n\t\t// call all constructor hooks\r\n\t\tthis.callInitHooks();\r\n\t};\r\n\r\n\tvar parentProto = NewClass.__super__ = this.prototype;\r\n\r\n\tvar proto = L.Util.create(parentProto);\r\n\tproto.constructor = NewClass;\r\n\r\n\tNewClass.prototype = proto;\r\n\r\n\t// inherit parent's statics\r\n\tfor (var i in this) {\r\n\t\tif (this.hasOwnProperty(i) && i !== 'prototype') {\r\n\t\t\tNewClass[i] = this[i];\r\n\t\t}\r\n\t}\r\n\r\n\t// mix static properties into the class\r\n\tif (props.statics) {\r\n\t\tL.extend(NewClass, props.statics);\r\n\t\tdelete props.statics;\r\n\t}\r\n\r\n\t// mix includes into the prototype\r\n\tif (props.includes) {\r\n\t\tL.Util.extend.apply(null, [proto].concat(props.includes));\r\n\t\tdelete props.includes;\r\n\t}\r\n\r\n\t// merge options\r\n\tif (proto.options) {\r\n\t\tprops.options = L.Util.extend(L.Util.create(proto.options), props.options);\r\n\t}\r\n\r\n\t// mix given properties into the prototype\r\n\tL.extend(proto, props);\r\n\r\n\tproto._initHooks = [];\r\n\r\n\t// add method for calling all hooks\r\n\tproto.callInitHooks = function () {\r\n\r\n\t\tif (this._initHooksCalled) { return; }\r\n\r\n\t\tif (parentProto.callInitHooks) {\r\n\t\t\tparentProto.callInitHooks.call(this);\r\n\t\t}\r\n\r\n\t\tthis._initHooksCalled = true;\r\n\r\n\t\tfor (var i = 0, len = proto._initHooks.length; i < len; i++) {\r\n\t\t\tproto._initHooks[i].call(this);\r\n\t\t}\r\n\t};\r\n\r\n\treturn NewClass;\r\n};\r\n\r\n\r\n// @function include(properties: Object): this\r\n// [Includes a mixin](#class-includes) into the current class.\r\nL.Class.include = function (props) {\r\n\tL.extend(this.prototype, props);\r\n\treturn this;\r\n};\r\n\r\n// @function mergeOptions(options: Object): this\r\n// [Merges `options`](#class-options) into the defaults of the class.\r\nL.Class.mergeOptions = function (options) {\r\n\tL.extend(this.prototype.options, options);\r\n\treturn this;\r\n};\r\n\r\n// @function addInitHook(fn: Function): this\r\n// Adds a [constructor hook](#class-constructor-hooks) to the class.\r\nL.Class.addInitHook = function (fn) { // (Function) || (String, args...)\r\n\tvar args = Array.prototype.slice.call(arguments, 1);\r\n\r\n\tvar init = typeof fn === 'function' ? fn : function () {\r\n\t\tthis[fn].apply(this, args);\r\n\t};\r\n\r\n\tthis.prototype._initHooks = this.prototype._initHooks || [];\r\n\tthis.prototype._initHooks.push(init);\r\n\treturn this;\r\n};\r\n\n\n\n/*\r\n * @class Evented\r\n * @aka L.Evented\r\n * @inherits Class\r\n *\r\n * A set of methods shared between event-powered classes (like `Map` and `Marker`). Generally, events allow you to execute some function when something happens with an object (e.g. the user clicks on the map, causing the map to fire `'click'` event).\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * map.on('click', function(e) {\r\n * \talert(e.latlng);\r\n * } );\r\n * ```\r\n *\r\n * Leaflet deals with event listeners by reference, so if you want to add a listener and then remove it, define it as a function:\r\n *\r\n * ```js\r\n * function onClick(e) { ... }\r\n *\r\n * map.on('click', onClick);\r\n * map.off('click', onClick);\r\n * ```\r\n */\r\n\r\n\r\nL.Evented = L.Class.extend({\r\n\r\n\t/* @method on(type: String, fn: Function, context?: Object): this\r\n\t * Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`).\r\n\t *\r\n\t * @alternative\r\n\t * @method on(eventMap: Object): this\r\n\t * Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n\t */\r\n\ton: function (types, fn, context) {\r\n\r\n\t\t// types can be a map of types/handlers\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\t// we don't process space-separated events here for performance;\r\n\t\t\t\t// it's a hot path since Layer uses the on(obj) syntax\r\n\t\t\t\tthis._on(type, types[type], fn);\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\t\t\t// types can be a string of space-separated words\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._on(types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t/* @method off(type: String, fn?: Function, context?: Object): this\r\n\t * Removes a previously added listener function. If no function is specified, it will remove all the listeners of that particular event from the object. Note that if you passed a custom context to `on`, you must pass the same context to `off` in order to remove the listener.\r\n\t *\r\n\t * @alternative\r\n\t * @method off(eventMap: Object): this\r\n\t * Removes a set of type/listener pairs.\r\n\t *\r\n\t * @alternative\r\n\t * @method off: this\r\n\t * Removes all listeners to all events on the object.\r\n\t */\r\n\toff: function (types, fn, context) {\r\n\r\n\t\tif (!types) {\r\n\t\t\t// clear all listeners if called without arguments\r\n\t\t\tdelete this._events;\r\n\r\n\t\t} else if (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis._off(type, types[type], fn);\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._off(types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// attach listener (without syntactic sugar now)\r\n\t_on: function (type, fn, context) {\r\n\t\tthis._events = this._events || {};\r\n\r\n\t\t/* get/init listeners for type */\r\n\t\tvar typeListeners = this._events[type];\r\n\t\tif (!typeListeners) {\r\n\t\t\ttypeListeners = [];\r\n\t\t\tthis._events[type] = typeListeners;\r\n\t\t}\r\n\r\n\t\tif (context === this) {\r\n\t\t\t// Less memory footprint.\r\n\t\t\tcontext = undefined;\r\n\t\t}\r\n\t\tvar newListener = {fn: fn, ctx: context},\r\n\t\t    listeners = typeListeners;\r\n\r\n\t\t// check if fn already there\r\n\t\tfor (var i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\tif (listeners[i].fn === fn && listeners[i].ctx === context) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tlisteners.push(newListener);\r\n\t},\r\n\r\n\t_off: function (type, fn, context) {\r\n\t\tvar listeners,\r\n\t\t    i,\r\n\t\t    len;\r\n\r\n\t\tif (!this._events) { return; }\r\n\r\n\t\tlisteners = this._events[type];\r\n\r\n\t\tif (!listeners) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (!fn) {\r\n\t\t\t// Set all removed listeners to noop so they are not called if remove happens in fire\r\n\t\t\tfor (i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\t\tlisteners[i].fn = L.Util.falseFn;\r\n\t\t\t}\r\n\t\t\t// clear all listeners for a type if function isn't specified\r\n\t\t\tdelete this._events[type];\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (context === this) {\r\n\t\t\tcontext = undefined;\r\n\t\t}\r\n\r\n\t\tif (listeners) {\r\n\r\n\t\t\t// find fn and remove it\r\n\t\t\tfor (i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\t\tvar l = listeners[i];\r\n\t\t\t\tif (l.ctx !== context) { continue; }\r\n\t\t\t\tif (l.fn === fn) {\r\n\r\n\t\t\t\t\t// set the removed listener to noop so that's not called if remove happens in fire\r\n\t\t\t\t\tl.fn = L.Util.falseFn;\r\n\r\n\t\t\t\t\tif (this._firingCount) {\r\n\t\t\t\t\t\t/* copy array in case events are being fired */\r\n\t\t\t\t\t\tthis._events[type] = listeners = listeners.slice();\r\n\t\t\t\t\t}\r\n\t\t\t\t\tlisteners.splice(i, 1);\r\n\r\n\t\t\t\t\treturn;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t// @method fire(type: String, data?: Object, propagate?: Boolean): this\r\n\t// Fires an event of the specified type. You can optionally provide an data\r\n\t// object — the first argument of the listener function will contain its\r\n\t// properties. The event can optionally be propagated to event parents.\r\n\tfire: function (type, data, propagate) {\r\n\t\tif (!this.listens(type, propagate)) { return this; }\r\n\r\n\t\tvar event = L.Util.extend({}, data, {type: type, target: this});\r\n\r\n\t\tif (this._events) {\r\n\t\t\tvar listeners = this._events[type];\r\n\r\n\t\t\tif (listeners) {\r\n\t\t\t\tthis._firingCount = (this._firingCount + 1) || 1;\r\n\t\t\t\tfor (var i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\t\t\tvar l = listeners[i];\r\n\t\t\t\t\tl.fn.call(l.ctx || this, event);\r\n\t\t\t\t}\r\n\r\n\t\t\t\tthis._firingCount--;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (propagate) {\r\n\t\t\t// propagate the event to parents (set with addEventParent)\r\n\t\t\tthis._propagateEvent(event);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method listens(type: String): Boolean\r\n\t// Returns `true` if a particular event type has any listeners attached to it.\r\n\tlistens: function (type, propagate) {\r\n\t\tvar listeners = this._events && this._events[type];\r\n\t\tif (listeners && listeners.length) { return true; }\r\n\r\n\t\tif (propagate) {\r\n\t\t\t// also check parents for listeners if event propagates\r\n\t\t\tfor (var id in this._eventParents) {\r\n\t\t\t\tif (this._eventParents[id].listens(type, propagate)) { return true; }\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn false;\r\n\t},\r\n\r\n\t// @method once(…): this\r\n\t// Behaves as [`on(…)`](#evented-on), except the listener will only get fired once and then removed.\r\n\tonce: function (types, fn, context) {\r\n\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis.once(type, types[type], fn);\r\n\t\t\t}\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tvar handler = L.bind(function () {\r\n\t\t\tthis\r\n\t\t\t    .off(types, fn, context)\r\n\t\t\t    .off(types, handler, context);\r\n\t\t}, this);\r\n\r\n\t\t// add a listener that's executed once and removed after that\r\n\t\treturn this\r\n\t\t    .on(types, fn, context)\r\n\t\t    .on(types, handler, context);\r\n\t},\r\n\r\n\t// @method addEventParent(obj: Evented): this\r\n\t// Adds an event parent - an `Evented` that will receive propagated events\r\n\taddEventParent: function (obj) {\r\n\t\tthis._eventParents = this._eventParents || {};\r\n\t\tthis._eventParents[L.stamp(obj)] = obj;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeEventParent(obj: Evented): this\r\n\t// Removes an event parent, so it will stop receiving propagated events\r\n\tremoveEventParent: function (obj) {\r\n\t\tif (this._eventParents) {\r\n\t\t\tdelete this._eventParents[L.stamp(obj)];\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_propagateEvent: function (e) {\r\n\t\tfor (var id in this._eventParents) {\r\n\t\t\tthis._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true);\r\n\t\t}\r\n\t}\r\n});\r\n\r\nvar proto = L.Evented.prototype;\r\n\r\n// aliases; we should ditch those eventually\r\n\r\n// @method addEventListener(…): this\r\n// Alias to [`on(…)`](#evented-on)\r\nproto.addEventListener = proto.on;\r\n\r\n// @method removeEventListener(…): this\r\n// Alias to [`off(…)`](#evented-off)\r\n\r\n// @method clearAllEventListeners(…): this\r\n// Alias to [`off()`](#evented-off)\r\nproto.removeEventListener = proto.clearAllEventListeners = proto.off;\r\n\r\n// @method addOneTimeEventListener(…): this\r\n// Alias to [`once(…)`](#evented-once)\r\nproto.addOneTimeEventListener = proto.once;\r\n\r\n// @method fireEvent(…): this\r\n// Alias to [`fire(…)`](#evented-fire)\r\nproto.fireEvent = proto.fire;\r\n\r\n// @method hasEventListeners(…): Boolean\r\n// Alias to [`listens(…)`](#evented-listens)\r\nproto.hasEventListeners = proto.listens;\r\n\r\nL.Mixin = {Events: proto};\r\n\n\n\n/*\r\n * @namespace Browser\r\n * @aka L.Browser\r\n *\r\n * A namespace with static properties for browser/feature detection used by Leaflet internally.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * if (L.Browser.ielt9) {\r\n *   alert('Upgrade your browser, dude!');\r\n * }\r\n * ```\r\n */\r\n\r\n(function () {\r\n\r\n\tvar ua = navigator.userAgent.toLowerCase(),\r\n\t    doc = document.documentElement,\r\n\r\n\t    ie = 'ActiveXObject' in window,\r\n\r\n\t    webkit    = ua.indexOf('webkit') !== -1,\r\n\t    phantomjs = ua.indexOf('phantom') !== -1,\r\n\t    android23 = ua.search('android [23]') !== -1,\r\n\t    chrome    = ua.indexOf('chrome') !== -1,\r\n\t    gecko     = ua.indexOf('gecko') !== -1  && !webkit && !window.opera && !ie,\r\n\r\n\t    win = navigator.platform.indexOf('Win') === 0,\r\n\r\n\t    mobile = typeof orientation !== 'undefined' || ua.indexOf('mobile') !== -1,\r\n\t    msPointer = !window.PointerEvent && window.MSPointerEvent,\r\n\t    pointer = window.PointerEvent || msPointer,\r\n\r\n\t    ie3d = ie && ('transition' in doc.style),\r\n\t    webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,\r\n\t    gecko3d = 'MozPerspective' in doc.style,\r\n\t    opera12 = 'OTransition' in doc.style;\r\n\r\n\r\n\tvar touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window ||\r\n\t\t\t(window.DocumentTouch && document instanceof window.DocumentTouch));\r\n\r\n\tL.Browser = {\r\n\r\n\t\t// @property ie: Boolean\r\n\t\t// `true` for all Internet Explorer versions (not Edge).\r\n\t\tie: ie,\r\n\r\n\t\t// @property ielt9: Boolean\r\n\t\t// `true` for Internet Explorer versions less than 9.\r\n\t\tielt9: ie && !document.addEventListener,\r\n\r\n\t\t// @property edge: Boolean\r\n\t\t// `true` for the Edge web browser.\r\n\t\tedge: 'msLaunchUri' in navigator && !('documentMode' in document),\r\n\r\n\t\t// @property webkit: Boolean\r\n\t\t// `true` for webkit-based browsers like Chrome and Safari (including mobile versions).\r\n\t\twebkit: webkit,\r\n\r\n\t\t// @property gecko: Boolean\r\n\t\t// `true` for gecko-based browsers like Firefox.\r\n\t\tgecko: gecko,\r\n\r\n\t\t// @property android: Boolean\r\n\t\t// `true` for any browser running on an Android platform.\r\n\t\tandroid: ua.indexOf('android') !== -1,\r\n\r\n\t\t// @property android23: Boolean\r\n\t\t// `true` for browsers running on Android 2 or Android 3.\r\n\t\tandroid23: android23,\r\n\r\n\t\t// @property chrome: Boolean\r\n\t\t// `true` for the Chrome browser.\r\n\t\tchrome: chrome,\r\n\r\n\t\t// @property safari: Boolean\r\n\t\t// `true` for the Safari browser.\r\n\t\tsafari: !chrome && ua.indexOf('safari') !== -1,\r\n\r\n\r\n\t\t// @property win: Boolean\r\n\t\t// `true` when the browser is running in a Windows platform\r\n\t\twin: win,\r\n\r\n\r\n\t\t// @property ie3d: Boolean\r\n\t\t// `true` for all Internet Explorer versions supporting CSS transforms.\r\n\t\tie3d: ie3d,\r\n\r\n\t\t// @property webkit3d: Boolean\r\n\t\t// `true` for webkit-based browsers supporting CSS transforms.\r\n\t\twebkit3d: webkit3d,\r\n\r\n\t\t// @property gecko3d: Boolean\r\n\t\t// `true` for gecko-based browsers supporting CSS transforms.\r\n\t\tgecko3d: gecko3d,\r\n\r\n\t\t// @property opera12: Boolean\r\n\t\t// `true` for the Opera browser supporting CSS transforms (version 12 or later).\r\n\t\topera12: opera12,\r\n\r\n\t\t// @property any3d: Boolean\r\n\t\t// `true` for all browsers supporting CSS transforms.\r\n\t\tany3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantomjs,\r\n\r\n\r\n\t\t// @property mobile: Boolean\r\n\t\t// `true` for all browsers running in a mobile device.\r\n\t\tmobile: mobile,\r\n\r\n\t\t// @property mobileWebkit: Boolean\r\n\t\t// `true` for all webkit-based browsers in a mobile device.\r\n\t\tmobileWebkit: mobile && webkit,\r\n\r\n\t\t// @property mobileWebkit3d: Boolean\r\n\t\t// `true` for all webkit-based browsers in a mobile device supporting CSS transforms.\r\n\t\tmobileWebkit3d: mobile && webkit3d,\r\n\r\n\t\t// @property mobileOpera: Boolean\r\n\t\t// `true` for the Opera browser in a mobile device.\r\n\t\tmobileOpera: mobile && window.opera,\r\n\r\n\t\t// @property mobileGecko: Boolean\r\n\t\t// `true` for gecko-based browsers running in a mobile device.\r\n\t\tmobileGecko: mobile && gecko,\r\n\r\n\r\n\t\t// @property touch: Boolean\r\n\t\t// `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events).\r\n\t\t// This does not necessarily mean that the browser is running in a computer with\r\n\t\t// a touchscreen, it only means that the browser is capable of understanding\r\n\t\t// touch events.\r\n\t\ttouch: !!touch,\r\n\r\n\t\t// @property msPointer: Boolean\r\n\t\t// `true` for browsers implementing the Microsoft touch events model (notably IE10).\r\n\t\tmsPointer: !!msPointer,\r\n\r\n\t\t// @property pointer: Boolean\r\n\t\t// `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx).\r\n\t\tpointer: !!pointer,\r\n\r\n\r\n\t\t// @property retina: Boolean\r\n\t\t// `true` for browsers on a high-resolution \"retina\" screen.\r\n\t\tretina: (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1\r\n\t};\r\n\r\n}());\r\n\n\n\n/*\r\n * @class Point\r\n * @aka L.Point\r\n *\r\n * Represents a point with `x` and `y` coordinates in pixels.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var point = L.point(200, 300);\r\n * ```\r\n *\r\n * All Leaflet methods and options that accept `Point` objects also accept them in a simple Array form (unless noted otherwise), so these lines are equivalent:\r\n *\r\n * ```js\r\n * map.panBy([200, 300]);\r\n * map.panBy(L.point(200, 300));\r\n * ```\r\n */\r\n\r\nL.Point = function (x, y, round) {\r\n\t// @property x: Number; The `x` coordinate of the point\r\n\tthis.x = (round ? Math.round(x) : x);\r\n\t// @property y: Number; The `y` coordinate of the point\r\n\tthis.y = (round ? Math.round(y) : y);\r\n};\r\n\r\nL.Point.prototype = {\r\n\r\n\t// @method clone(): Point\r\n\t// Returns a copy of the current point.\r\n\tclone: function () {\r\n\t\treturn new L.Point(this.x, this.y);\r\n\t},\r\n\r\n\t// @method add(otherPoint: Point): Point\r\n\t// Returns the result of addition of the current and the given points.\r\n\tadd: function (point) {\r\n\t\t// non-destructive, returns a new point\r\n\t\treturn this.clone()._add(L.point(point));\r\n\t},\r\n\r\n\t_add: function (point) {\r\n\t\t// destructive, used directly for performance in situations where it's safe to modify existing point\r\n\t\tthis.x += point.x;\r\n\t\tthis.y += point.y;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method subtract(otherPoint: Point): Point\r\n\t// Returns the result of subtraction of the given point from the current.\r\n\tsubtract: function (point) {\r\n\t\treturn this.clone()._subtract(L.point(point));\r\n\t},\r\n\r\n\t_subtract: function (point) {\r\n\t\tthis.x -= point.x;\r\n\t\tthis.y -= point.y;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method divideBy(num: Number): Point\r\n\t// Returns the result of division of the current point by the given number.\r\n\tdivideBy: function (num) {\r\n\t\treturn this.clone()._divideBy(num);\r\n\t},\r\n\r\n\t_divideBy: function (num) {\r\n\t\tthis.x /= num;\r\n\t\tthis.y /= num;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method multiplyBy(num: Number): Point\r\n\t// Returns the result of multiplication of the current point by the given number.\r\n\tmultiplyBy: function (num) {\r\n\t\treturn this.clone()._multiplyBy(num);\r\n\t},\r\n\r\n\t_multiplyBy: function (num) {\r\n\t\tthis.x *= num;\r\n\t\tthis.y *= num;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method scaleBy(scale: Point): Point\r\n\t// Multiply each coordinate of the current point by each coordinate of\r\n\t// `scale`. In linear algebra terms, multiply the point by the\r\n\t// [scaling matrix](https://en.wikipedia.org/wiki/Scaling_%28geometry%29#Matrix_representation)\r\n\t// defined by `scale`.\r\n\tscaleBy: function (point) {\r\n\t\treturn new L.Point(this.x * point.x, this.y * point.y);\r\n\t},\r\n\r\n\t// @method unscaleBy(scale: Point): Point\r\n\t// Inverse of `scaleBy`. Divide each coordinate of the current point by\r\n\t// each coordinate of `scale`.\r\n\tunscaleBy: function (point) {\r\n\t\treturn new L.Point(this.x / point.x, this.y / point.y);\r\n\t},\r\n\r\n\t// @method round(): Point\r\n\t// Returns a copy of the current point with rounded coordinates.\r\n\tround: function () {\r\n\t\treturn this.clone()._round();\r\n\t},\r\n\r\n\t_round: function () {\r\n\t\tthis.x = Math.round(this.x);\r\n\t\tthis.y = Math.round(this.y);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method floor(): Point\r\n\t// Returns a copy of the current point with floored coordinates (rounded down).\r\n\tfloor: function () {\r\n\t\treturn this.clone()._floor();\r\n\t},\r\n\r\n\t_floor: function () {\r\n\t\tthis.x = Math.floor(this.x);\r\n\t\tthis.y = Math.floor(this.y);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method ceil(): Point\r\n\t// Returns a copy of the current point with ceiled coordinates (rounded up).\r\n\tceil: function () {\r\n\t\treturn this.clone()._ceil();\r\n\t},\r\n\r\n\t_ceil: function () {\r\n\t\tthis.x = Math.ceil(this.x);\r\n\t\tthis.y = Math.ceil(this.y);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method distanceTo(otherPoint: Point): Number\r\n\t// Returns the cartesian distance between the current and the given points.\r\n\tdistanceTo: function (point) {\r\n\t\tpoint = L.point(point);\r\n\r\n\t\tvar x = point.x - this.x,\r\n\t\t    y = point.y - this.y;\r\n\r\n\t\treturn Math.sqrt(x * x + y * y);\r\n\t},\r\n\r\n\t// @method equals(otherPoint: Point): Boolean\r\n\t// Returns `true` if the given point has the same coordinates.\r\n\tequals: function (point) {\r\n\t\tpoint = L.point(point);\r\n\r\n\t\treturn point.x === this.x &&\r\n\t\t       point.y === this.y;\r\n\t},\r\n\r\n\t// @method contains(otherPoint: Point): Boolean\r\n\t// Returns `true` if both coordinates of the given point are less than the corresponding current point coordinates (in absolute values).\r\n\tcontains: function (point) {\r\n\t\tpoint = L.point(point);\r\n\r\n\t\treturn Math.abs(point.x) <= Math.abs(this.x) &&\r\n\t\t       Math.abs(point.y) <= Math.abs(this.y);\r\n\t},\r\n\r\n\t// @method toString(): String\r\n\t// Returns a string representation of the point for debugging purposes.\r\n\ttoString: function () {\r\n\t\treturn 'Point(' +\r\n\t\t        L.Util.formatNum(this.x) + ', ' +\r\n\t\t        L.Util.formatNum(this.y) + ')';\r\n\t}\r\n};\r\n\r\n// @factory L.point(x: Number, y: Number, round?: Boolean)\r\n// Creates a Point object with the given `x` and `y` coordinates. If optional `round` is set to true, rounds the `x` and `y` values.\r\n\r\n// @alternative\r\n// @factory L.point(coords: Number[])\r\n// Expects an array of the form `[x, y]` instead.\r\n\r\n// @alternative\r\n// @factory L.point(coords: Object)\r\n// Expects a plain object of the form `{x: Number, y: Number}` instead.\r\nL.point = function (x, y, round) {\r\n\tif (x instanceof L.Point) {\r\n\t\treturn x;\r\n\t}\r\n\tif (L.Util.isArray(x)) {\r\n\t\treturn new L.Point(x[0], x[1]);\r\n\t}\r\n\tif (x === undefined || x === null) {\r\n\t\treturn x;\r\n\t}\r\n\tif (typeof x === 'object' && 'x' in x && 'y' in x) {\r\n\t\treturn new L.Point(x.x, x.y);\r\n\t}\r\n\treturn new L.Point(x, y, round);\r\n};\r\n\n\n\n/*\r\n * @class Bounds\r\n * @aka L.Bounds\r\n *\r\n * Represents a rectangular area in pixel coordinates.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var p1 = L.point(10, 10),\r\n * p2 = L.point(40, 60),\r\n * bounds = L.bounds(p1, p2);\r\n * ```\r\n *\r\n * All Leaflet methods that accept `Bounds` objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:\r\n *\r\n * ```js\r\n * otherBounds.intersects([[10, 10], [40, 60]]);\r\n * ```\r\n */\r\n\r\nL.Bounds = function (a, b) {\r\n\tif (!a) { return; }\r\n\r\n\tvar points = b ? [a, b] : a;\r\n\r\n\tfor (var i = 0, len = points.length; i < len; i++) {\r\n\t\tthis.extend(points[i]);\r\n\t}\r\n};\r\n\r\nL.Bounds.prototype = {\r\n\t// @method extend(point: Point): this\r\n\t// Extends the bounds to contain the given point.\r\n\textend: function (point) { // (Point)\r\n\t\tpoint = L.point(point);\r\n\r\n\t\t// @property min: Point\r\n\t\t// The top left corner of the rectangle.\r\n\t\t// @property max: Point\r\n\t\t// The bottom right corner of the rectangle.\r\n\t\tif (!this.min && !this.max) {\r\n\t\t\tthis.min = point.clone();\r\n\t\t\tthis.max = point.clone();\r\n\t\t} else {\r\n\t\t\tthis.min.x = Math.min(point.x, this.min.x);\r\n\t\t\tthis.max.x = Math.max(point.x, this.max.x);\r\n\t\t\tthis.min.y = Math.min(point.y, this.min.y);\r\n\t\t\tthis.max.y = Math.max(point.y, this.max.y);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getCenter(round?: Boolean): Point\r\n\t// Returns the center point of the bounds.\r\n\tgetCenter: function (round) {\r\n\t\treturn new L.Point(\r\n\t\t        (this.min.x + this.max.x) / 2,\r\n\t\t        (this.min.y + this.max.y) / 2, round);\r\n\t},\r\n\r\n\t// @method getBottomLeft(): Point\r\n\t// Returns the bottom-left point of the bounds.\r\n\tgetBottomLeft: function () {\r\n\t\treturn new L.Point(this.min.x, this.max.y);\r\n\t},\r\n\r\n\t// @method getTopRight(): Point\r\n\t// Returns the top-right point of the bounds.\r\n\tgetTopRight: function () { // -> Point\r\n\t\treturn new L.Point(this.max.x, this.min.y);\r\n\t},\r\n\r\n\t// @method getSize(): Point\r\n\t// Returns the size of the given bounds\r\n\tgetSize: function () {\r\n\t\treturn this.max.subtract(this.min);\r\n\t},\r\n\r\n\t// @method contains(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle contains the given one.\r\n\t// @alternative\r\n\t// @method contains(point: Point): Boolean\r\n\t// Returns `true` if the rectangle contains the given point.\r\n\tcontains: function (obj) {\r\n\t\tvar min, max;\r\n\r\n\t\tif (typeof obj[0] === 'number' || obj instanceof L.Point) {\r\n\t\t\tobj = L.point(obj);\r\n\t\t} else {\r\n\t\t\tobj = L.bounds(obj);\r\n\t\t}\r\n\r\n\t\tif (obj instanceof L.Bounds) {\r\n\t\t\tmin = obj.min;\r\n\t\t\tmax = obj.max;\r\n\t\t} else {\r\n\t\t\tmin = max = obj;\r\n\t\t}\r\n\r\n\t\treturn (min.x >= this.min.x) &&\r\n\t\t       (max.x <= this.max.x) &&\r\n\t\t       (min.y >= this.min.y) &&\r\n\t\t       (max.y <= this.max.y);\r\n\t},\r\n\r\n\t// @method intersects(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle intersects the given bounds. Two bounds\r\n\t// intersect if they have at least one point in common.\r\n\tintersects: function (bounds) { // (Bounds) -> Boolean\r\n\t\tbounds = L.bounds(bounds);\r\n\r\n\t\tvar min = this.min,\r\n\t\t    max = this.max,\r\n\t\t    min2 = bounds.min,\r\n\t\t    max2 = bounds.max,\r\n\t\t    xIntersects = (max2.x >= min.x) && (min2.x <= max.x),\r\n\t\t    yIntersects = (max2.y >= min.y) && (min2.y <= max.y);\r\n\r\n\t\treturn xIntersects && yIntersects;\r\n\t},\r\n\r\n\t// @method overlaps(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle overlaps the given bounds. Two bounds\r\n\t// overlap if their intersection is an area.\r\n\toverlaps: function (bounds) { // (Bounds) -> Boolean\r\n\t\tbounds = L.bounds(bounds);\r\n\r\n\t\tvar min = this.min,\r\n\t\t    max = this.max,\r\n\t\t    min2 = bounds.min,\r\n\t\t    max2 = bounds.max,\r\n\t\t    xOverlaps = (max2.x > min.x) && (min2.x < max.x),\r\n\t\t    yOverlaps = (max2.y > min.y) && (min2.y < max.y);\r\n\r\n\t\treturn xOverlaps && yOverlaps;\r\n\t},\r\n\r\n\tisValid: function () {\r\n\t\treturn !!(this.min && this.max);\r\n\t}\r\n};\r\n\r\n\r\n// @factory L.bounds(topLeft: Point, bottomRight: Point)\r\n// Creates a Bounds object from two coordinates (usually top-left and bottom-right corners).\r\n// @alternative\r\n// @factory L.bounds(points: Point[])\r\n// Creates a Bounds object from the points it contains\r\nL.bounds = function (a, b) {\r\n\tif (!a || a instanceof L.Bounds) {\r\n\t\treturn a;\r\n\t}\r\n\treturn new L.Bounds(a, b);\r\n};\r\n\n\n\n/*\r\n * @class Transformation\r\n * @aka L.Transformation\r\n *\r\n * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d`\r\n * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing\r\n * the reverse. Used by Leaflet in its projections code.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var transformation = new L.Transformation(2, 5, -1, 10),\r\n * \tp = L.point(1, 2),\r\n * \tp2 = transformation.transform(p), //  L.point(7, 8)\r\n * \tp3 = transformation.untransform(p2); //  L.point(1, 2)\r\n * ```\r\n */\r\n\r\n\r\n// factory new L.Transformation(a: Number, b: Number, c: Number, d: Number)\r\n// Creates a `Transformation` object with the given coefficients.\r\nL.Transformation = function (a, b, c, d) {\r\n\tthis._a = a;\r\n\tthis._b = b;\r\n\tthis._c = c;\r\n\tthis._d = d;\r\n};\r\n\r\nL.Transformation.prototype = {\r\n\t// @method transform(point: Point, scale?: Number): Point\r\n\t// Returns a transformed point, optionally multiplied by the given scale.\r\n\t// Only accepts actual `L.Point` instances, not arrays.\r\n\ttransform: function (point, scale) { // (Point, Number) -> Point\r\n\t\treturn this._transform(point.clone(), scale);\r\n\t},\r\n\r\n\t// destructive transform (faster)\r\n\t_transform: function (point, scale) {\r\n\t\tscale = scale || 1;\r\n\t\tpoint.x = scale * (this._a * point.x + this._b);\r\n\t\tpoint.y = scale * (this._c * point.y + this._d);\r\n\t\treturn point;\r\n\t},\r\n\r\n\t// @method untransform(point: Point, scale?: Number): Point\r\n\t// Returns the reverse transformation of the given point, optionally divided\r\n\t// by the given scale. Only accepts actual `L.Point` instances, not arrays.\r\n\tuntransform: function (point, scale) {\r\n\t\tscale = scale || 1;\r\n\t\treturn new L.Point(\r\n\t\t        (point.x / scale - this._b) / this._a,\r\n\t\t        (point.y / scale - this._d) / this._c);\r\n\t}\r\n};\r\n\n\n\n/*\r\n * @namespace DomUtil\r\n *\r\n * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model)\r\n * tree, used by Leaflet internally.\r\n *\r\n * Most functions expecting or returning a `HTMLElement` also work for\r\n * SVG elements. The only difference is that classes refer to CSS classes\r\n * in HTML and SVG classes in SVG.\r\n */\r\n\r\nL.DomUtil = {\r\n\r\n\t// @function get(id: String|HTMLElement): HTMLElement\r\n\t// Returns an element given its DOM id, or returns the element itself\r\n\t// if it was passed directly.\r\n\tget: function (id) {\r\n\t\treturn typeof id === 'string' ? document.getElementById(id) : id;\r\n\t},\r\n\r\n\t// @function getStyle(el: HTMLElement, styleAttrib: String): String\r\n\t// Returns the value for a certain style attribute on an element,\r\n\t// including computed values or values set through CSS.\r\n\tgetStyle: function (el, style) {\r\n\r\n\t\tvar value = el.style[style] || (el.currentStyle && el.currentStyle[style]);\r\n\r\n\t\tif ((!value || value === 'auto') && document.defaultView) {\r\n\t\t\tvar css = document.defaultView.getComputedStyle(el, null);\r\n\t\t\tvalue = css ? css[style] : null;\r\n\t\t}\r\n\r\n\t\treturn value === 'auto' ? null : value;\r\n\t},\r\n\r\n\t// @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement\r\n\t// Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element.\r\n\tcreate: function (tagName, className, container) {\r\n\r\n\t\tvar el = document.createElement(tagName);\r\n\t\tel.className = className || '';\r\n\r\n\t\tif (container) {\r\n\t\t\tcontainer.appendChild(el);\r\n\t\t}\r\n\r\n\t\treturn el;\r\n\t},\r\n\r\n\t// @function remove(el: HTMLElement)\r\n\t// Removes `el` from its parent element\r\n\tremove: function (el) {\r\n\t\tvar parent = el.parentNode;\r\n\t\tif (parent) {\r\n\t\t\tparent.removeChild(el);\r\n\t\t}\r\n\t},\r\n\r\n\t// @function empty(el: HTMLElement)\r\n\t// Removes all of `el`'s children elements from `el`\r\n\tempty: function (el) {\r\n\t\twhile (el.firstChild) {\r\n\t\t\tel.removeChild(el.firstChild);\r\n\t\t}\r\n\t},\r\n\r\n\t// @function toFront(el: HTMLElement)\r\n\t// Makes `el` the last children of its parent, so it renders in front of the other children.\r\n\ttoFront: function (el) {\r\n\t\tel.parentNode.appendChild(el);\r\n\t},\r\n\r\n\t// @function toBack(el: HTMLElement)\r\n\t// Makes `el` the first children of its parent, so it renders back from the other children.\r\n\ttoBack: function (el) {\r\n\t\tvar parent = el.parentNode;\r\n\t\tparent.insertBefore(el, parent.firstChild);\r\n\t},\r\n\r\n\t// @function hasClass(el: HTMLElement, name: String): Boolean\r\n\t// Returns `true` if the element's class attribute contains `name`.\r\n\thasClass: function (el, name) {\r\n\t\tif (el.classList !== undefined) {\r\n\t\t\treturn el.classList.contains(name);\r\n\t\t}\r\n\t\tvar className = L.DomUtil.getClass(el);\r\n\t\treturn className.length > 0 && new RegExp('(^|\\\\s)' + name + '(\\\\s|$)').test(className);\r\n\t},\r\n\r\n\t// @function addClass(el: HTMLElement, name: String)\r\n\t// Adds `name` to the element's class attribute.\r\n\taddClass: function (el, name) {\r\n\t\tif (el.classList !== undefined) {\r\n\t\t\tvar classes = L.Util.splitWords(name);\r\n\t\t\tfor (var i = 0, len = classes.length; i < len; i++) {\r\n\t\t\t\tel.classList.add(classes[i]);\r\n\t\t\t}\r\n\t\t} else if (!L.DomUtil.hasClass(el, name)) {\r\n\t\t\tvar className = L.DomUtil.getClass(el);\r\n\t\t\tL.DomUtil.setClass(el, (className ? className + ' ' : '') + name);\r\n\t\t}\r\n\t},\r\n\r\n\t// @function removeClass(el: HTMLElement, name: String)\r\n\t// Removes `name` from the element's class attribute.\r\n\tremoveClass: function (el, name) {\r\n\t\tif (el.classList !== undefined) {\r\n\t\t\tel.classList.remove(name);\r\n\t\t} else {\r\n\t\t\tL.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' ')));\r\n\t\t}\r\n\t},\r\n\r\n\t// @function setClass(el: HTMLElement, name: String)\r\n\t// Sets the element's class.\r\n\tsetClass: function (el, name) {\r\n\t\tif (el.className.baseVal === undefined) {\r\n\t\t\tel.className = name;\r\n\t\t} else {\r\n\t\t\t// in case of SVG element\r\n\t\t\tel.className.baseVal = name;\r\n\t\t}\r\n\t},\r\n\r\n\t// @function getClass(el: HTMLElement): String\r\n\t// Returns the element's class.\r\n\tgetClass: function (el) {\r\n\t\treturn el.className.baseVal === undefined ? el.className : el.className.baseVal;\r\n\t},\r\n\r\n\t// @function setOpacity(el: HTMLElement, opacity: Number)\r\n\t// Set the opacity of an element (including old IE support).\r\n\t// `opacity` must be a number from `0` to `1`.\r\n\tsetOpacity: function (el, value) {\r\n\r\n\t\tif ('opacity' in el.style) {\r\n\t\t\tel.style.opacity = value;\r\n\r\n\t\t} else if ('filter' in el.style) {\r\n\t\t\tL.DomUtil._setOpacityIE(el, value);\r\n\t\t}\r\n\t},\r\n\r\n\t_setOpacityIE: function (el, value) {\r\n\t\tvar filter = false,\r\n\t\t    filterName = 'DXImageTransform.Microsoft.Alpha';\r\n\r\n\t\t// filters collection throws an error if we try to retrieve a filter that doesn't exist\r\n\t\ttry {\r\n\t\t\tfilter = el.filters.item(filterName);\r\n\t\t} catch (e) {\r\n\t\t\t// don't set opacity to 1 if we haven't already set an opacity,\r\n\t\t\t// it isn't needed and breaks transparent pngs.\r\n\t\t\tif (value === 1) { return; }\r\n\t\t}\r\n\r\n\t\tvalue = Math.round(value * 100);\r\n\r\n\t\tif (filter) {\r\n\t\t\tfilter.Enabled = (value !== 100);\r\n\t\t\tfilter.Opacity = value;\r\n\t\t} else {\r\n\t\t\tel.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';\r\n\t\t}\r\n\t},\r\n\r\n\t// @function testProp(props: String[]): String|false\r\n\t// Goes through the array of style names and returns the first name\r\n\t// that is a valid style name for an element. If no such name is found,\r\n\t// it returns false. Useful for vendor-prefixed styles like `transform`.\r\n\ttestProp: function (props) {\r\n\r\n\t\tvar style = document.documentElement.style;\r\n\r\n\t\tfor (var i = 0; i < props.length; i++) {\r\n\t\t\tif (props[i] in style) {\r\n\t\t\t\treturn props[i];\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn false;\r\n\t},\r\n\r\n\t// @function setTransform(el: HTMLElement, offset: Point, scale?: Number)\r\n\t// Resets the 3D CSS transform of `el` so it is translated by `offset` pixels\r\n\t// and optionally scaled by `scale`. Does not have an effect if the\r\n\t// browser doesn't support 3D CSS transforms.\r\n\tsetTransform: function (el, offset, scale) {\r\n\t\tvar pos = offset || new L.Point(0, 0);\r\n\r\n\t\tel.style[L.DomUtil.TRANSFORM] =\r\n\t\t\t(L.Browser.ie3d ?\r\n\t\t\t\t'translate(' + pos.x + 'px,' + pos.y + 'px)' :\r\n\t\t\t\t'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') +\r\n\t\t\t(scale ? ' scale(' + scale + ')' : '');\r\n\t},\r\n\r\n\t// @function setPosition(el: HTMLElement, position: Point)\r\n\t// Sets the position of `el` to coordinates specified by `position`,\r\n\t// using CSS translate or top/left positioning depending on the browser\r\n\t// (used by Leaflet internally to position its layers).\r\n\tsetPosition: function (el, point) { // (HTMLElement, Point[, Boolean])\r\n\r\n\t\t/*eslint-disable */\r\n\t\tel._leaflet_pos = point;\r\n\t\t/*eslint-enable */\r\n\r\n\t\tif (L.Browser.any3d) {\r\n\t\t\tL.DomUtil.setTransform(el, point);\r\n\t\t} else {\r\n\t\t\tel.style.left = point.x + 'px';\r\n\t\t\tel.style.top = point.y + 'px';\r\n\t\t}\r\n\t},\r\n\r\n\t// @function getPosition(el: HTMLElement): Point\r\n\t// Returns the coordinates of an element previously positioned with setPosition.\r\n\tgetPosition: function (el) {\r\n\t\t// this method is only used for elements previously positioned using setPosition,\r\n\t\t// so it's safe to cache the position for performance\r\n\r\n\t\treturn el._leaflet_pos || new L.Point(0, 0);\r\n\t}\r\n};\r\n\r\n\r\n(function () {\r\n\t// prefix style property names\r\n\r\n\t// @property TRANSFORM: String\r\n\t// Vendor-prefixed fransform style name (e.g. `'webkitTransform'` for WebKit).\r\n\tL.DomUtil.TRANSFORM = L.DomUtil.testProp(\r\n\t\t\t['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);\r\n\r\n\r\n\t// webkitTransition comes first because some browser versions that drop vendor prefix don't do\r\n\t// the same for the transitionend event, in particular the Android 4.1 stock browser\r\n\r\n\t// @property TRANSITION: String\r\n\t// Vendor-prefixed transform style name.\r\n\tvar transition = L.DomUtil.TRANSITION = L.DomUtil.testProp(\r\n\t\t\t['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);\r\n\r\n\tL.DomUtil.TRANSITION_END =\r\n\t\t\ttransition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend';\r\n\r\n\t// @function disableTextSelection()\r\n\t// Prevents the user from generating `selectstart` DOM events, usually generated\r\n\t// when the user drags the mouse through a page with text. Used internally\r\n\t// by Leaflet to override the behaviour of any click-and-drag interaction on\r\n\t// the map. Affects drag interactions on the whole document.\r\n\r\n\t// @function enableTextSelection()\r\n\t// Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection).\r\n\tif ('onselectstart' in document) {\r\n\t\tL.DomUtil.disableTextSelection = function () {\r\n\t\t\tL.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);\r\n\t\t};\r\n\t\tL.DomUtil.enableTextSelection = function () {\r\n\t\t\tL.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);\r\n\t\t};\r\n\r\n\t} else {\r\n\t\tvar userSelectProperty = L.DomUtil.testProp(\r\n\t\t\t['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);\r\n\r\n\t\tL.DomUtil.disableTextSelection = function () {\r\n\t\t\tif (userSelectProperty) {\r\n\t\t\t\tvar style = document.documentElement.style;\r\n\t\t\t\tthis._userSelect = style[userSelectProperty];\r\n\t\t\t\tstyle[userSelectProperty] = 'none';\r\n\t\t\t}\r\n\t\t};\r\n\t\tL.DomUtil.enableTextSelection = function () {\r\n\t\t\tif (userSelectProperty) {\r\n\t\t\t\tdocument.documentElement.style[userSelectProperty] = this._userSelect;\r\n\t\t\t\tdelete this._userSelect;\r\n\t\t\t}\r\n\t\t};\r\n\t}\r\n\r\n\t// @function disableImageDrag()\r\n\t// As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but\r\n\t// for `dragstart` DOM events, usually generated when the user drags an image.\r\n\tL.DomUtil.disableImageDrag = function () {\r\n\t\tL.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);\r\n\t};\r\n\r\n\t// @function enableImageDrag()\r\n\t// Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection).\r\n\tL.DomUtil.enableImageDrag = function () {\r\n\t\tL.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);\r\n\t};\r\n\r\n\t// @function preventOutline(el: HTMLElement)\r\n\t// Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline)\r\n\t// of the element `el` invisible. Used internally by Leaflet to prevent\r\n\t// focusable elements from displaying an outline when the user performs a\r\n\t// drag interaction on them.\r\n\tL.DomUtil.preventOutline = function (element) {\r\n\t\twhile (element.tabIndex === -1) {\r\n\t\t\telement = element.parentNode;\r\n\t\t}\r\n\t\tif (!element || !element.style) { return; }\r\n\t\tL.DomUtil.restoreOutline();\r\n\t\tthis._outlineElement = element;\r\n\t\tthis._outlineStyle = element.style.outline;\r\n\t\telement.style.outline = 'none';\r\n\t\tL.DomEvent.on(window, 'keydown', L.DomUtil.restoreOutline, this);\r\n\t};\r\n\r\n\t// @function restoreOutline()\r\n\t// Cancels the effects of a previous [`L.DomUtil.preventOutline`]().\r\n\tL.DomUtil.restoreOutline = function () {\r\n\t\tif (!this._outlineElement) { return; }\r\n\t\tthis._outlineElement.style.outline = this._outlineStyle;\r\n\t\tdelete this._outlineElement;\r\n\t\tdelete this._outlineStyle;\r\n\t\tL.DomEvent.off(window, 'keydown', L.DomUtil.restoreOutline, this);\r\n\t};\r\n})();\r\n\n\n\n/* @class LatLng\r\n * @aka L.LatLng\r\n *\r\n * Represents a geographical point with a certain latitude and longitude.\r\n *\r\n * @example\r\n *\r\n * ```\r\n * var latlng = L.latLng(50.5, 30.5);\r\n * ```\r\n *\r\n * All Leaflet methods that accept LatLng objects also accept them in a simple Array form and simple object form (unless noted otherwise), so these lines are equivalent:\r\n *\r\n * ```\r\n * map.panTo([50, 30]);\r\n * map.panTo({lon: 30, lat: 50});\r\n * map.panTo({lat: 50, lng: 30});\r\n * map.panTo(L.latLng(50, 30));\r\n * ```\r\n */\r\n\r\nL.LatLng = function (lat, lng, alt) {\r\n\tif (isNaN(lat) || isNaN(lng)) {\r\n\t\tthrow new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');\r\n\t}\r\n\r\n\t// @property lat: Number\r\n\t// Latitude in degrees\r\n\tthis.lat = +lat;\r\n\r\n\t// @property lng: Number\r\n\t// Longitude in degrees\r\n\tthis.lng = +lng;\r\n\r\n\t// @property alt: Number\r\n\t// Altitude in meters (optional)\r\n\tif (alt !== undefined) {\r\n\t\tthis.alt = +alt;\r\n\t}\r\n};\r\n\r\nL.LatLng.prototype = {\r\n\t// @method equals(otherLatLng: LatLng, maxMargin?: Number): Boolean\r\n\t// Returns `true` if the given `LatLng` point is at the same position (within a small margin of error). The margin of error can be overriden by setting `maxMargin` to a small number.\r\n\tequals: function (obj, maxMargin) {\r\n\t\tif (!obj) { return false; }\r\n\r\n\t\tobj = L.latLng(obj);\r\n\r\n\t\tvar margin = Math.max(\r\n\t\t        Math.abs(this.lat - obj.lat),\r\n\t\t        Math.abs(this.lng - obj.lng));\r\n\r\n\t\treturn margin <= (maxMargin === undefined ? 1.0E-9 : maxMargin);\r\n\t},\r\n\r\n\t// @method toString(): String\r\n\t// Returns a string representation of the point (for debugging purposes).\r\n\ttoString: function (precision) {\r\n\t\treturn 'LatLng(' +\r\n\t\t        L.Util.formatNum(this.lat, precision) + ', ' +\r\n\t\t        L.Util.formatNum(this.lng, precision) + ')';\r\n\t},\r\n\r\n\t// @method distanceTo(otherLatLng: LatLng): Number\r\n\t// Returns the distance (in meters) to the given `LatLng` calculated using the [Haversine formula](http://en.wikipedia.org/wiki/Haversine_formula).\r\n\tdistanceTo: function (other) {\r\n\t\treturn L.CRS.Earth.distance(this, L.latLng(other));\r\n\t},\r\n\r\n\t// @method wrap(): LatLng\r\n\t// Returns a new `LatLng` object with the longitude wrapped so it's always between -180 and +180 degrees.\r\n\twrap: function () {\r\n\t\treturn L.CRS.Earth.wrapLatLng(this);\r\n\t},\r\n\r\n\t// @method toBounds(sizeInMeters: Number): LatLngBounds\r\n\t// Returns a new `LatLngBounds` object in which each boundary is `sizeInMeters/2` meters apart from the `LatLng`.\r\n\ttoBounds: function (sizeInMeters) {\r\n\t\tvar latAccuracy = 180 * sizeInMeters / 40075017,\r\n\t\t    lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat);\r\n\r\n\t\treturn L.latLngBounds(\r\n\t\t        [this.lat - latAccuracy, this.lng - lngAccuracy],\r\n\t\t        [this.lat + latAccuracy, this.lng + lngAccuracy]);\r\n\t},\r\n\r\n\tclone: function () {\r\n\t\treturn new L.LatLng(this.lat, this.lng, this.alt);\r\n\t}\r\n};\r\n\r\n\r\n\r\n// @factory L.latLng(latitude: Number, longitude: Number, altitude?: Number): LatLng\r\n// Creates an object representing a geographical point with the given latitude and longitude (and optionally altitude).\r\n\r\n// @alternative\r\n// @factory L.latLng(coords: Array): LatLng\r\n// Expects an array of the form `[Number, Number]` or `[Number, Number, Number]` instead.\r\n\r\n// @alternative\r\n// @factory L.latLng(coords: Object): LatLng\r\n// Expects an plain object of the form `{lat: Number, lng: Number}` or `{lat: Number, lng: Number, alt: Number}` instead.\r\n\r\nL.latLng = function (a, b, c) {\r\n\tif (a instanceof L.LatLng) {\r\n\t\treturn a;\r\n\t}\r\n\tif (L.Util.isArray(a) && typeof a[0] !== 'object') {\r\n\t\tif (a.length === 3) {\r\n\t\t\treturn new L.LatLng(a[0], a[1], a[2]);\r\n\t\t}\r\n\t\tif (a.length === 2) {\r\n\t\t\treturn new L.LatLng(a[0], a[1]);\r\n\t\t}\r\n\t\treturn null;\r\n\t}\r\n\tif (a === undefined || a === null) {\r\n\t\treturn a;\r\n\t}\r\n\tif (typeof a === 'object' && 'lat' in a) {\r\n\t\treturn new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt);\r\n\t}\r\n\tif (b === undefined) {\r\n\t\treturn null;\r\n\t}\r\n\treturn new L.LatLng(a, b, c);\r\n};\r\n\n\n\n/*\r\n * @class LatLngBounds\r\n * @aka L.LatLngBounds\r\n *\r\n * Represents a rectangular geographical area on a map.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var corner1 = L.latLng(40.712, -74.227),\r\n * corner2 = L.latLng(40.774, -74.125),\r\n * bounds = L.latLngBounds(corner1, corner2);\r\n * ```\r\n *\r\n * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:\r\n *\r\n * ```js\r\n * map.fitBounds([\r\n * \t[40.712, -74.227],\r\n * \t[40.774, -74.125]\r\n * ]);\r\n * ```\r\n *\r\n * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range.\r\n */\r\n\r\nL.LatLngBounds = function (corner1, corner2) { // (LatLng, LatLng) or (LatLng[])\r\n\tif (!corner1) { return; }\r\n\r\n\tvar latlngs = corner2 ? [corner1, corner2] : corner1;\r\n\r\n\tfor (var i = 0, len = latlngs.length; i < len; i++) {\r\n\t\tthis.extend(latlngs[i]);\r\n\t}\r\n};\r\n\r\nL.LatLngBounds.prototype = {\r\n\r\n\t// @method extend(latlng: LatLng): this\r\n\t// Extend the bounds to contain the given point\r\n\r\n\t// @alternative\r\n\t// @method extend(otherBounds: LatLngBounds): this\r\n\t// Extend the bounds to contain the given bounds\r\n\textend: function (obj) {\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2, ne2;\r\n\r\n\t\tif (obj instanceof L.LatLng) {\r\n\t\t\tsw2 = obj;\r\n\t\t\tne2 = obj;\r\n\r\n\t\t} else if (obj instanceof L.LatLngBounds) {\r\n\t\t\tsw2 = obj._southWest;\r\n\t\t\tne2 = obj._northEast;\r\n\r\n\t\t\tif (!sw2 || !ne2) { return this; }\r\n\r\n\t\t} else {\r\n\t\t\treturn obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this;\r\n\t\t}\r\n\r\n\t\tif (!sw && !ne) {\r\n\t\t\tthis._southWest = new L.LatLng(sw2.lat, sw2.lng);\r\n\t\t\tthis._northEast = new L.LatLng(ne2.lat, ne2.lng);\r\n\t\t} else {\r\n\t\t\tsw.lat = Math.min(sw2.lat, sw.lat);\r\n\t\t\tsw.lng = Math.min(sw2.lng, sw.lng);\r\n\t\t\tne.lat = Math.max(ne2.lat, ne.lat);\r\n\t\t\tne.lng = Math.max(ne2.lng, ne.lng);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method pad(bufferRatio: Number): LatLngBounds\r\n\t// Returns bigger bounds created by extending the current bounds by a given percentage in each direction.\r\n\tpad: function (bufferRatio) {\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,\r\n\t\t    widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;\r\n\r\n\t\treturn new L.LatLngBounds(\r\n\t\t        new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),\r\n\t\t        new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));\r\n\t},\r\n\r\n\t// @method getCenter(): LatLng\r\n\t// Returns the center point of the bounds.\r\n\tgetCenter: function () {\r\n\t\treturn new L.LatLng(\r\n\t\t        (this._southWest.lat + this._northEast.lat) / 2,\r\n\t\t        (this._southWest.lng + this._northEast.lng) / 2);\r\n\t},\r\n\r\n\t// @method getSouthWest(): LatLng\r\n\t// Returns the south-west point of the bounds.\r\n\tgetSouthWest: function () {\r\n\t\treturn this._southWest;\r\n\t},\r\n\r\n\t// @method getNorthEast(): LatLng\r\n\t// Returns the north-east point of the bounds.\r\n\tgetNorthEast: function () {\r\n\t\treturn this._northEast;\r\n\t},\r\n\r\n\t// @method getNorthWest(): LatLng\r\n\t// Returns the north-west point of the bounds.\r\n\tgetNorthWest: function () {\r\n\t\treturn new L.LatLng(this.getNorth(), this.getWest());\r\n\t},\r\n\r\n\t// @method getSouthEast(): LatLng\r\n\t// Returns the south-east point of the bounds.\r\n\tgetSouthEast: function () {\r\n\t\treturn new L.LatLng(this.getSouth(), this.getEast());\r\n\t},\r\n\r\n\t// @method getWest(): Number\r\n\t// Returns the west longitude of the bounds\r\n\tgetWest: function () {\r\n\t\treturn this._southWest.lng;\r\n\t},\r\n\r\n\t// @method getSouth(): Number\r\n\t// Returns the south latitude of the bounds\r\n\tgetSouth: function () {\r\n\t\treturn this._southWest.lat;\r\n\t},\r\n\r\n\t// @method getEast(): Number\r\n\t// Returns the east longitude of the bounds\r\n\tgetEast: function () {\r\n\t\treturn this._northEast.lng;\r\n\t},\r\n\r\n\t// @method getNorth(): Number\r\n\t// Returns the north latitude of the bounds\r\n\tgetNorth: function () {\r\n\t\treturn this._northEast.lat;\r\n\t},\r\n\r\n\t// @method contains(otherBounds: LatLngBounds): Boolean\r\n\t// Returns `true` if the rectangle contains the given one.\r\n\r\n\t// @alternative\r\n\t// @method contains (latlng: LatLng): Boolean\r\n\t// Returns `true` if the rectangle contains the given point.\r\n\tcontains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean\r\n\t\tif (typeof obj[0] === 'number' || obj instanceof L.LatLng || 'lat' in obj) {\r\n\t\t\tobj = L.latLng(obj);\r\n\t\t} else {\r\n\t\t\tobj = L.latLngBounds(obj);\r\n\t\t}\r\n\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2, ne2;\r\n\r\n\t\tif (obj instanceof L.LatLngBounds) {\r\n\t\t\tsw2 = obj.getSouthWest();\r\n\t\t\tne2 = obj.getNorthEast();\r\n\t\t} else {\r\n\t\t\tsw2 = ne2 = obj;\r\n\t\t}\r\n\r\n\t\treturn (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&\r\n\t\t       (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);\r\n\t},\r\n\r\n\t// @method intersects(otherBounds: LatLngBounds): Boolean\r\n\t// Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common.\r\n\tintersects: function (bounds) {\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2 = bounds.getSouthWest(),\r\n\t\t    ne2 = bounds.getNorthEast(),\r\n\r\n\t\t    latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),\r\n\t\t    lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);\r\n\r\n\t\treturn latIntersects && lngIntersects;\r\n\t},\r\n\r\n\t// @method overlaps(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area.\r\n\toverlaps: function (bounds) {\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2 = bounds.getSouthWest(),\r\n\t\t    ne2 = bounds.getNorthEast(),\r\n\r\n\t\t    latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat),\r\n\t\t    lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng);\r\n\r\n\t\treturn latOverlaps && lngOverlaps;\r\n\t},\r\n\r\n\t// @method toBBoxString(): String\r\n\t// Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data.\r\n\ttoBBoxString: function () {\r\n\t\treturn [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');\r\n\t},\r\n\r\n\t// @method equals(otherBounds: LatLngBounds): Boolean\r\n\t// Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds.\r\n\tequals: function (bounds) {\r\n\t\tif (!bounds) { return false; }\r\n\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\treturn this._southWest.equals(bounds.getSouthWest()) &&\r\n\t\t       this._northEast.equals(bounds.getNorthEast());\r\n\t},\r\n\r\n\t// @method isValid(): Boolean\r\n\t// Returns `true` if the bounds are properly initialized.\r\n\tisValid: function () {\r\n\t\treturn !!(this._southWest && this._northEast);\r\n\t}\r\n};\r\n\r\n// TODO International date line?\r\n\r\n// @factory L.latLngBounds(corner1: LatLng, corner2: LatLng)\r\n// Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle.\r\n\r\n// @alternative\r\n// @factory L.latLngBounds(latlngs: LatLng[])\r\n// Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds).\r\nL.latLngBounds = function (a, b) {\r\n\tif (a instanceof L.LatLngBounds) {\r\n\t\treturn a;\r\n\t}\r\n\treturn new L.LatLngBounds(a, b);\r\n};\r\n\n\n\n/*\r\n * @namespace Projection\r\n * @section\r\n * Leaflet comes with a set of already defined Projections out of the box:\r\n *\r\n * @projection L.Projection.LonLat\r\n *\r\n * Equirectangular, or Plate Carree projection — the most simple projection,\r\n * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as\r\n * latitude. Also suitable for flat worlds, e.g. game maps. Used by the\r\n * `EPSG:3395` and `Simple` CRS.\r\n */\r\n\r\nL.Projection = {};\r\n\r\nL.Projection.LonLat = {\r\n\tproject: function (latlng) {\r\n\t\treturn new L.Point(latlng.lng, latlng.lat);\r\n\t},\r\n\r\n\tunproject: function (point) {\r\n\t\treturn new L.LatLng(point.y, point.x);\r\n\t},\r\n\r\n\tbounds: L.bounds([-180, -90], [180, 90])\r\n};\r\n\n\n\n/*\r\n * @namespace Projection\r\n * @projection L.Projection.SphericalMercator\r\n *\r\n * Spherical Mercator projection — the most common projection for online maps,\r\n * used by almost all free and commercial tile providers. Assumes that Earth is\r\n * a sphere. Used by the `EPSG:3857` CRS.\r\n */\r\n\r\nL.Projection.SphericalMercator = {\r\n\r\n\tR: 6378137,\r\n\tMAX_LATITUDE: 85.0511287798,\r\n\r\n\tproject: function (latlng) {\r\n\t\tvar d = Math.PI / 180,\r\n\t\t    max = this.MAX_LATITUDE,\r\n\t\t    lat = Math.max(Math.min(max, latlng.lat), -max),\r\n\t\t    sin = Math.sin(lat * d);\r\n\r\n\t\treturn new L.Point(\r\n\t\t\t\tthis.R * latlng.lng * d,\r\n\t\t\t\tthis.R * Math.log((1 + sin) / (1 - sin)) / 2);\r\n\t},\r\n\r\n\tunproject: function (point) {\r\n\t\tvar d = 180 / Math.PI;\r\n\r\n\t\treturn new L.LatLng(\r\n\t\t\t(2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d,\r\n\t\t\tpoint.x * d / this.R);\r\n\t},\r\n\r\n\tbounds: (function () {\r\n\t\tvar d = 6378137 * Math.PI;\r\n\t\treturn L.bounds([-d, -d], [d, d]);\r\n\t})()\r\n};\r\n\n\n\n/*\r\n * @class CRS\r\n * @aka L.CRS\r\n * Abstract class that defines coordinate reference systems for projecting\r\n * geographical points into pixel (screen) coordinates and back (and to\r\n * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See\r\n * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system).\r\n *\r\n * Leaflet defines the most usual CRSs by default. If you want to use a\r\n * CRS not defined by default, take a look at the\r\n * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin.\r\n */\r\n\r\nL.CRS = {\r\n\t// @method latLngToPoint(latlng: LatLng, zoom: Number): Point\r\n\t// Projects geographical coordinates into pixel coordinates for a given zoom.\r\n\tlatLngToPoint: function (latlng, zoom) {\r\n\t\tvar projectedPoint = this.projection.project(latlng),\r\n\t\t    scale = this.scale(zoom);\r\n\r\n\t\treturn this.transformation._transform(projectedPoint, scale);\r\n\t},\r\n\r\n\t// @method pointToLatLng(point: Point, zoom: Number): LatLng\r\n\t// The inverse of `latLngToPoint`. Projects pixel coordinates on a given\r\n\t// zoom into geographical coordinates.\r\n\tpointToLatLng: function (point, zoom) {\r\n\t\tvar scale = this.scale(zoom),\r\n\t\t    untransformedPoint = this.transformation.untransform(point, scale);\r\n\r\n\t\treturn this.projection.unproject(untransformedPoint);\r\n\t},\r\n\r\n\t// @method project(latlng: LatLng): Point\r\n\t// Projects geographical coordinates into coordinates in units accepted for\r\n\t// this CRS (e.g. meters for EPSG:3857, for passing it to WMS services).\r\n\tproject: function (latlng) {\r\n\t\treturn this.projection.project(latlng);\r\n\t},\r\n\r\n\t// @method unproject(point: Point): LatLng\r\n\t// Given a projected coordinate returns the corresponding LatLng.\r\n\t// The inverse of `project`.\r\n\tunproject: function (point) {\r\n\t\treturn this.projection.unproject(point);\r\n\t},\r\n\r\n\t// @method scale(zoom: Number): Number\r\n\t// Returns the scale used when transforming projected coordinates into\r\n\t// pixel coordinates for a particular zoom. For example, it returns\r\n\t// `256 * 2^zoom` for Mercator-based CRS.\r\n\tscale: function (zoom) {\r\n\t\treturn 256 * Math.pow(2, zoom);\r\n\t},\r\n\r\n\t// @method zoom(scale: Number): Number\r\n\t// Inverse of `scale()`, returns the zoom level corresponding to a scale\r\n\t// factor of `scale`.\r\n\tzoom: function (scale) {\r\n\t\treturn Math.log(scale / 256) / Math.LN2;\r\n\t},\r\n\r\n\t// @method getProjectedBounds(zoom: Number): Bounds\r\n\t// Returns the projection's bounds scaled and transformed for the provided `zoom`.\r\n\tgetProjectedBounds: function (zoom) {\r\n\t\tif (this.infinite) { return null; }\r\n\r\n\t\tvar b = this.projection.bounds,\r\n\t\t    s = this.scale(zoom),\r\n\t\t    min = this.transformation.transform(b.min, s),\r\n\t\t    max = this.transformation.transform(b.max, s);\r\n\r\n\t\treturn L.bounds(min, max);\r\n\t},\r\n\r\n\t// @method distance(latlng1: LatLng, latlng2: LatLng): Number\r\n\t// Returns the distance between two geographical coordinates.\r\n\r\n\t// @property code: String\r\n\t// Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`)\r\n\t//\r\n\t// @property wrapLng: Number[]\r\n\t// An array of two numbers defining whether the longitude (horizontal) coordinate\r\n\t// axis wraps around a given range and how. Defaults to `[-180, 180]` in most\r\n\t// geographical CRSs. If `undefined`, the longitude axis does not wrap around.\r\n\t//\r\n\t// @property wrapLat: Number[]\r\n\t// Like `wrapLng`, but for the latitude (vertical) axis.\r\n\r\n\t// wrapLng: [min, max],\r\n\t// wrapLat: [min, max],\r\n\r\n\t// @property infinite: Boolean\r\n\t// If true, the coordinate space will be unbounded (infinite in both axes)\r\n\tinfinite: false,\r\n\r\n\t// @method wrapLatLng(latlng: LatLng): LatLng\r\n\t// Returns a `LatLng` where lat and lng has been wrapped according to the\r\n\t// CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds.\r\n\t// Only accepts actual `L.LatLng` instances, not arrays.\r\n\twrapLatLng: function (latlng) {\r\n\t\tvar lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng,\r\n\t\t    lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat,\r\n\t\t    alt = latlng.alt;\r\n\r\n\t\treturn L.latLng(lat, lng, alt);\r\n\t},\r\n\r\n\t// @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds\r\n\t// Returns a `LatLngBounds` with the same size as the given one, ensuring\r\n\t// that its center is within the CRS's bounds.\r\n\t// Only accepts actual `L.LatLngBounds` instances, not arrays.\r\n\twrapLatLngBounds: function (bounds) {\r\n\t\tvar center = bounds.getCenter(),\r\n\t\t    newCenter = this.wrapLatLng(center),\r\n\t\t    latShift = center.lat - newCenter.lat,\r\n\t\t    lngShift = center.lng - newCenter.lng;\r\n\r\n\t\tif (latShift === 0 && lngShift === 0) {\r\n\t\t\treturn bounds;\r\n\t\t}\r\n\r\n\t\tvar sw = bounds.getSouthWest(),\r\n\t\t    ne = bounds.getNorthEast(),\r\n\t\t    newSw = L.latLng({lat: sw.lat - latShift, lng: sw.lng - lngShift}),\r\n\t\t    newNe = L.latLng({lat: ne.lat - latShift, lng: ne.lng - lngShift});\r\n\r\n\t\treturn new L.LatLngBounds(newSw, newNe);\r\n\t}\r\n};\r\n\n\n\n/*\n * @namespace CRS\n * @crs L.CRS.Simple\n *\n * A simple CRS that maps longitude and latitude into `x` and `y` directly.\n * May be used for maps of flat surfaces (e.g. game maps). Note that the `y`\n * axis should still be inverted (going from bottom to top). `distance()` returns\n * simple euclidean distance.\n */\n\nL.CRS.Simple = L.extend({}, L.CRS, {\n\tprojection: L.Projection.LonLat,\n\ttransformation: new L.Transformation(1, 0, -1, 0),\n\n\tscale: function (zoom) {\n\t\treturn Math.pow(2, zoom);\n\t},\n\n\tzoom: function (scale) {\n\t\treturn Math.log(scale) / Math.LN2;\n\t},\n\n\tdistance: function (latlng1, latlng2) {\n\t\tvar dx = latlng2.lng - latlng1.lng,\n\t\t    dy = latlng2.lat - latlng1.lat;\n\n\t\treturn Math.sqrt(dx * dx + dy * dy);\n\t},\n\n\tinfinite: true\n});\n\n\n\n/*\n * @namespace CRS\n * @crs L.CRS.Earth\n *\n * Serves as the base for CRS that are global such that they cover the earth.\n * Can only be used as the base for other CRS and cannot be used directly,\n * since it does not have a `code`, `projection` or `transformation`. `distance()` returns\n * meters.\n */\n\nL.CRS.Earth = L.extend({}, L.CRS, {\n\twrapLng: [-180, 180],\n\n\t// Mean Earth Radius, as recommended for use by\n\t// the International Union of Geodesy and Geophysics,\n\t// see http://rosettacode.org/wiki/Haversine_formula\n\tR: 6371000,\n\n\t// distance between two geographical points using spherical law of cosines approximation\n\tdistance: function (latlng1, latlng2) {\n\t\tvar rad = Math.PI / 180,\n\t\t    lat1 = latlng1.lat * rad,\n\t\t    lat2 = latlng2.lat * rad,\n\t\t    a = Math.sin(lat1) * Math.sin(lat2) +\n\t\t        Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad);\n\n\t\treturn this.R * Math.acos(Math.min(a, 1));\n\t}\n});\n\n\n\n/*\r\n * @namespace CRS\r\n * @crs L.CRS.EPSG3857\r\n *\r\n * The most common CRS for online maps, used by almost all free and commercial\r\n * tile providers. Uses Spherical Mercator projection. Set in by default in\r\n * Map's `crs` option.\r\n */\r\n\r\nL.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, {\r\n\tcode: 'EPSG:3857',\r\n\tprojection: L.Projection.SphericalMercator,\r\n\r\n\ttransformation: (function () {\r\n\t\tvar scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R);\r\n\t\treturn new L.Transformation(scale, 0.5, -scale, 0.5);\r\n\t}())\r\n});\r\n\r\nL.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {\r\n\tcode: 'EPSG:900913'\r\n});\r\n\n\n\n/*\r\n * @namespace CRS\r\n * @crs L.CRS.EPSG4326\r\n *\r\n * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection.\r\n *\r\n * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic),\r\n * which is a breaking change from 0.7.x behaviour.  If you are using a `TileLayer`\r\n * with this CRS, ensure that there are two 256x256 pixel tiles covering the\r\n * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90),\r\n * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set.\r\n */\r\n\r\nL.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, {\r\n\tcode: 'EPSG:4326',\r\n\tprojection: L.Projection.LonLat,\r\n\ttransformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5)\r\n});\r\n\n\n\n/*\r\n * @class Map\r\n * @aka L.Map\r\n * @inherits Evented\r\n *\r\n * The central class of the API — it is used to create a map on a page and manipulate it.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * // initialize the map on the \"map\" div with a given center and zoom\r\n * var map = L.map('map', {\r\n * \tcenter: [51.505, -0.09],\r\n * \tzoom: 13\r\n * });\r\n * ```\r\n *\r\n */\r\n\r\nL.Map = L.Evented.extend({\r\n\r\n\toptions: {\r\n\t\t// @section Map State Options\r\n\t\t// @option crs: CRS = L.CRS.EPSG3857\r\n\t\t// The [Coordinate Reference System](#crs) to use. Don't change this if you're not\r\n\t\t// sure what it means.\r\n\t\tcrs: L.CRS.EPSG3857,\r\n\r\n\t\t// @option center: LatLng = undefined\r\n\t\t// Initial geographic center of the map\r\n\t\tcenter: undefined,\r\n\r\n\t\t// @option zoom: Number = undefined\r\n\t\t// Initial map zoom level\r\n\t\tzoom: undefined,\r\n\r\n\t\t// @option minZoom: Number = undefined\r\n\t\t// Minimum zoom level of the map. Overrides any `minZoom` option set on map layers.\r\n\t\tminZoom: undefined,\r\n\r\n\t\t// @option maxZoom: Number = undefined\r\n\t\t// Maximum zoom level of the map. Overrides any `maxZoom` option set on map layers.\r\n\t\tmaxZoom: undefined,\r\n\r\n\t\t// @option layers: Layer[] = []\r\n\t\t// Array of layers that will be added to the map initially\r\n\t\tlayers: [],\r\n\r\n\t\t// @option maxBounds: LatLngBounds = null\r\n\t\t// When this option is set, the map restricts the view to the given\r\n\t\t// geographical bounds, bouncing the user back if the user tries to pan\r\n\t\t// outside the view. To set the restriction dynamically, use\r\n\t\t// [`setMaxBounds`](#map-setmaxbounds) method.\r\n\t\tmaxBounds: undefined,\r\n\r\n\t\t// @option renderer: Renderer = *\r\n\t\t// The default method for drawing vector layers on the map. `L.SVG`\r\n\t\t// or `L.Canvas` by default depending on browser support.\r\n\t\trenderer: undefined,\r\n\r\n\r\n\t\t// @section Animation Options\r\n\t\t// @option zoomAnimation: Boolean = true\r\n\t\t// Whether the map zoom animation is enabled. By default it's enabled\r\n\t\t// in all browsers that support CSS3 Transitions except Android.\r\n\t\tzoomAnimation: true,\r\n\r\n\t\t// @option zoomAnimationThreshold: Number = 4\r\n\t\t// Won't animate zoom if the zoom difference exceeds this value.\r\n\t\tzoomAnimationThreshold: 4,\r\n\r\n\t\t// @option fadeAnimation: Boolean = true\r\n\t\t// Whether the tile fade animation is enabled. By default it's enabled\r\n\t\t// in all browsers that support CSS3 Transitions except Android.\r\n\t\tfadeAnimation: true,\r\n\r\n\t\t// @option markerZoomAnimation: Boolean = true\r\n\t\t// Whether markers animate their zoom with the zoom animation, if disabled\r\n\t\t// they will disappear for the length of the animation. By default it's\r\n\t\t// enabled in all browsers that support CSS3 Transitions except Android.\r\n\t\tmarkerZoomAnimation: true,\r\n\r\n\t\t// @option transform3DLimit: Number = 2^23\r\n\t\t// Defines the maximum size of a CSS translation transform. The default\r\n\t\t// value should not be changed unless a web browser positions layers in\r\n\t\t// the wrong place after doing a large `panBy`.\r\n\t\ttransform3DLimit: 8388608, // Precision limit of a 32-bit float\r\n\r\n\t\t// @section Interaction Options\r\n\t\t// @option zoomSnap: Number = 1\r\n\t\t// Forces the map's zoom level to always be a multiple of this, particularly\r\n\t\t// right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom.\r\n\t\t// By default, the zoom level snaps to the nearest integer; lower values\r\n\t\t// (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0`\r\n\t\t// means the zoom level will not be snapped after `fitBounds` or a pinch-zoom.\r\n\t\tzoomSnap: 1,\r\n\r\n\t\t// @option zoomDelta: Number = 1\r\n\t\t// Controls how much the map's zoom level will change after a\r\n\t\t// [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+`\r\n\t\t// or `-` on the keyboard, or using the [zoom controls](#control-zoom).\r\n\t\t// Values smaller than `1` (e.g. `0.5`) allow for greater granularity.\r\n\t\tzoomDelta: 1,\r\n\r\n\t\t// @option trackResize: Boolean = true\r\n\t\t// Whether the map automatically handles browser window resize to update itself.\r\n\t\ttrackResize: true\r\n\t},\r\n\r\n\tinitialize: function (id, options) { // (HTMLElement or String, Object)\r\n\t\toptions = L.setOptions(this, options);\r\n\r\n\t\tthis._initContainer(id);\r\n\t\tthis._initLayout();\r\n\r\n\t\t// hack for https://github.com/Leaflet/Leaflet/issues/1980\r\n\t\tthis._onResize = L.bind(this._onResize, this);\r\n\r\n\t\tthis._initEvents();\r\n\r\n\t\tif (options.maxBounds) {\r\n\t\t\tthis.setMaxBounds(options.maxBounds);\r\n\t\t}\r\n\r\n\t\tif (options.zoom !== undefined) {\r\n\t\t\tthis._zoom = this._limitZoom(options.zoom);\r\n\t\t}\r\n\r\n\t\tif (options.center && options.zoom !== undefined) {\r\n\t\t\tthis.setView(L.latLng(options.center), options.zoom, {reset: true});\r\n\t\t}\r\n\r\n\t\tthis._handlers = [];\r\n\t\tthis._layers = {};\r\n\t\tthis._zoomBoundLayers = {};\r\n\t\tthis._sizeChanged = true;\r\n\r\n\t\tthis.callInitHooks();\r\n\r\n\t\t// don't animate on browsers without hardware-accelerated transitions or old Android/Opera\r\n\t\tthis._zoomAnimated = L.DomUtil.TRANSITION && L.Browser.any3d && !L.Browser.mobileOpera &&\r\n\t\t\t\tthis.options.zoomAnimation;\r\n\r\n\t\t// zoom transitions run with the same duration for all layers, so if one of transitionend events\r\n\t\t// happens after starting zoom animation (propagating to the map pane), we know that it ended globally\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tthis._createAnimProxy();\r\n\t\t\tL.DomEvent.on(this._proxy, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);\r\n\t\t}\r\n\r\n\t\tthis._addLayers(this.options.layers);\r\n\t},\r\n\r\n\r\n\t// @section Methods for modifying map state\r\n\r\n\t// @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this\r\n\t// Sets the view of the map (geographical center and zoom) with the given\r\n\t// animation options.\r\n\tsetView: function (center, zoom, options) {\r\n\r\n\t\tzoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);\r\n\t\tcenter = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);\r\n\t\toptions = options || {};\r\n\r\n\t\tthis._stop();\r\n\r\n\t\tif (this._loaded && !options.reset && options !== true) {\r\n\r\n\t\t\tif (options.animate !== undefined) {\r\n\t\t\t\toptions.zoom = L.extend({animate: options.animate}, options.zoom);\r\n\t\t\t\toptions.pan = L.extend({animate: options.animate, duration: options.duration}, options.pan);\r\n\t\t\t}\r\n\r\n\t\t\t// try animating pan or zoom\r\n\t\t\tvar moved = (this._zoom !== zoom) ?\r\n\t\t\t\tthis._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :\r\n\t\t\t\tthis._tryAnimatedPan(center, options.pan);\r\n\r\n\t\t\tif (moved) {\r\n\t\t\t\t// prevent resize handler call, the view will refresh after animation anyway\r\n\t\t\t\tclearTimeout(this._sizeTimer);\r\n\t\t\t\treturn this;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// animation didn't start, just reset the map view\r\n\t\tthis._resetView(center, zoom);\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setZoom(zoom: Number, options: Zoom/pan options): this\r\n\t// Sets the zoom of the map.\r\n\tsetZoom: function (zoom, options) {\r\n\t\tif (!this._loaded) {\r\n\t\t\tthis._zoom = zoom;\r\n\t\t\treturn this;\r\n\t\t}\r\n\t\treturn this.setView(this.getCenter(), zoom, {zoom: options});\r\n\t},\r\n\r\n\t// @method zoomIn(delta?: Number, options?: Zoom options): this\r\n\t// Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).\r\n\tzoomIn: function (delta, options) {\r\n\t\tdelta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);\r\n\t\treturn this.setZoom(this._zoom + delta, options);\r\n\t},\r\n\r\n\t// @method zoomOut(delta?: Number, options?: Zoom options): this\r\n\t// Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).\r\n\tzoomOut: function (delta, options) {\r\n\t\tdelta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);\r\n\t\treturn this.setZoom(this._zoom - delta, options);\r\n\t},\r\n\r\n\t// @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this\r\n\t// Zooms the map while keeping a specified geographical point on the map\r\n\t// stationary (e.g. used internally for scroll zoom and double-click zoom).\r\n\t// @alternative\r\n\t// @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this\r\n\t// Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary.\r\n\tsetZoomAround: function (latlng, zoom, options) {\r\n\t\tvar scale = this.getZoomScale(zoom),\r\n\t\t    viewHalf = this.getSize().divideBy(2),\r\n\t\t    containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),\r\n\r\n\t\t    centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),\r\n\t\t    newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));\r\n\r\n\t\treturn this.setView(newCenter, zoom, {zoom: options});\r\n\t},\r\n\r\n\t_getBoundsCenterZoom: function (bounds, options) {\r\n\r\n\t\toptions = options || {};\r\n\t\tbounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);\r\n\r\n\t\tvar paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),\r\n\t\t    paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),\r\n\r\n\t\t    zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));\r\n\r\n\t\tzoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;\r\n\r\n\t\tvar paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),\r\n\r\n\t\t    swPoint = this.project(bounds.getSouthWest(), zoom),\r\n\t\t    nePoint = this.project(bounds.getNorthEast(), zoom),\r\n\t\t    center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);\r\n\r\n\t\treturn {\r\n\t\t\tcenter: center,\r\n\t\t\tzoom: zoom\r\n\t\t};\r\n\t},\r\n\r\n\t// @method fitBounds(bounds: LatLngBounds, options?: fitBounds options): this\r\n\t// Sets a map view that contains the given geographical bounds with the\r\n\t// maximum zoom level possible.\r\n\tfitBounds: function (bounds, options) {\r\n\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tif (!bounds.isValid()) {\r\n\t\t\tthrow new Error('Bounds are not valid.');\r\n\t\t}\r\n\r\n\t\tvar target = this._getBoundsCenterZoom(bounds, options);\r\n\t\treturn this.setView(target.center, target.zoom, options);\r\n\t},\r\n\r\n\t// @method fitWorld(options?: fitBounds options): this\r\n\t// Sets a map view that mostly contains the whole world with the maximum\r\n\t// zoom level possible.\r\n\tfitWorld: function (options) {\r\n\t\treturn this.fitBounds([[-90, -180], [90, 180]], options);\r\n\t},\r\n\r\n\t// @method panTo(latlng: LatLng, options?: Pan options): this\r\n\t// Pans the map to a given center.\r\n\tpanTo: function (center, options) { // (LatLng)\r\n\t\treturn this.setView(center, this._zoom, {pan: options});\r\n\t},\r\n\r\n\t// @method panBy(offset: Point): this\r\n\t// Pans the map by a given number of pixels (animated).\r\n\tpanBy: function (offset, options) {\r\n\t\toffset = L.point(offset).round();\r\n\t\toptions = options || {};\r\n\r\n\t\tif (!offset.x && !offset.y) {\r\n\t\t\treturn this.fire('moveend');\r\n\t\t}\r\n\t\t// If we pan too far, Chrome gets issues with tiles\r\n\t\t// and makes them disappear or appear in the wrong place (slightly offset) #2602\r\n\t\tif (options.animate !== true && !this.getSize().contains(offset)) {\r\n\t\t\tthis._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom());\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tif (!this._panAnim) {\r\n\t\t\tthis._panAnim = new L.PosAnimation();\r\n\r\n\t\t\tthis._panAnim.on({\r\n\t\t\t\t'step': this._onPanTransitionStep,\r\n\t\t\t\t'end': this._onPanTransitionEnd\r\n\t\t\t}, this);\r\n\t\t}\r\n\r\n\t\t// don't fire movestart if animating inertia\r\n\t\tif (!options.noMoveStart) {\r\n\t\t\tthis.fire('movestart');\r\n\t\t}\r\n\r\n\t\t// animate pan unless animate: false specified\r\n\t\tif (options.animate !== false) {\r\n\t\t\tL.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');\r\n\r\n\t\t\tvar newPos = this._getMapPanePos().subtract(offset).round();\r\n\t\t\tthis._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);\r\n\t\t} else {\r\n\t\t\tthis._rawPanBy(offset);\r\n\t\t\tthis.fire('move').fire('moveend');\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this\r\n\t// Sets the view of the map (geographical center and zoom) performing a smooth\r\n\t// pan-zoom animation.\r\n\tflyTo: function (targetCenter, targetZoom, options) {\r\n\r\n\t\toptions = options || {};\r\n\t\tif (options.animate === false || !L.Browser.any3d) {\r\n\t\t\treturn this.setView(targetCenter, targetZoom, options);\r\n\t\t}\r\n\r\n\t\tthis._stop();\r\n\r\n\t\tvar from = this.project(this.getCenter()),\r\n\t\t    to = this.project(targetCenter),\r\n\t\t    size = this.getSize(),\r\n\t\t    startZoom = this._zoom;\r\n\r\n\t\ttargetCenter = L.latLng(targetCenter);\r\n\t\ttargetZoom = targetZoom === undefined ? startZoom : targetZoom;\r\n\r\n\t\tvar w0 = Math.max(size.x, size.y),\r\n\t\t    w1 = w0 * this.getZoomScale(startZoom, targetZoom),\r\n\t\t    u1 = (to.distanceTo(from)) || 1,\r\n\t\t    rho = 1.42,\r\n\t\t    rho2 = rho * rho;\r\n\r\n\t\tfunction r(i) {\r\n\t\t\tvar s1 = i ? -1 : 1,\r\n\t\t\t    s2 = i ? w1 : w0,\r\n\t\t\t    t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1,\r\n\t\t\t    b1 = 2 * s2 * rho2 * u1,\r\n\t\t\t    b = t1 / b1,\r\n\t\t\t    sq = Math.sqrt(b * b + 1) - b;\r\n\r\n\t\t\t    // workaround for floating point precision bug when sq = 0, log = -Infinite,\r\n\t\t\t    // thus triggering an infinite loop in flyTo\r\n\t\t\t    var log = sq < 0.000000001 ? -18 : Math.log(sq);\r\n\r\n\t\t\treturn log;\r\n\t\t}\r\n\r\n\t\tfunction sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; }\r\n\t\tfunction cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; }\r\n\t\tfunction tanh(n) { return sinh(n) / cosh(n); }\r\n\r\n\t\tvar r0 = r(0);\r\n\r\n\t\tfunction w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); }\r\n\t\tfunction u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; }\r\n\r\n\t\tfunction easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }\r\n\r\n\t\tvar start = Date.now(),\r\n\t\t    S = (r(1) - r0) / rho,\r\n\t\t    duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;\r\n\r\n\t\tfunction frame() {\r\n\t\t\tvar t = (Date.now() - start) / duration,\r\n\t\t\t    s = easeOut(t) * S;\r\n\r\n\t\t\tif (t <= 1) {\r\n\t\t\t\tthis._flyToFrame = L.Util.requestAnimFrame(frame, this);\r\n\r\n\t\t\t\tthis._move(\r\n\t\t\t\t\tthis.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),\r\n\t\t\t\t\tthis.getScaleZoom(w0 / w(s), startZoom),\r\n\t\t\t\t\t{flyTo: true});\r\n\r\n\t\t\t} else {\r\n\t\t\t\tthis\r\n\t\t\t\t\t._move(targetCenter, targetZoom)\r\n\t\t\t\t\t._moveEnd(true);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tthis._moveStart(true);\r\n\r\n\t\tframe.call(this);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this\r\n\t// Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto),\r\n\t// but takes a bounds parameter like [`fitBounds`](#map-fitbounds).\r\n\tflyToBounds: function (bounds, options) {\r\n\t\tvar target = this._getBoundsCenterZoom(bounds, options);\r\n\t\treturn this.flyTo(target.center, target.zoom, options);\r\n\t},\r\n\r\n\t// @method setMaxBounds(bounds: Bounds): this\r\n\t// Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option).\r\n\tsetMaxBounds: function (bounds) {\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tif (!bounds.isValid()) {\r\n\t\t\tthis.options.maxBounds = null;\r\n\t\t\treturn this.off('moveend', this._panInsideMaxBounds);\r\n\t\t} else if (this.options.maxBounds) {\r\n\t\t\tthis.off('moveend', this._panInsideMaxBounds);\r\n\t\t}\r\n\r\n\t\tthis.options.maxBounds = bounds;\r\n\r\n\t\tif (this._loaded) {\r\n\t\t\tthis._panInsideMaxBounds();\r\n\t\t}\r\n\r\n\t\treturn this.on('moveend', this._panInsideMaxBounds);\r\n\t},\r\n\r\n\t// @method setMinZoom(zoom: Number): this\r\n\t// Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option).\r\n\tsetMinZoom: function (zoom) {\r\n\t\tthis.options.minZoom = zoom;\r\n\r\n\t\tif (this._loaded && this.getZoom() < this.options.minZoom) {\r\n\t\t\treturn this.setZoom(zoom);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setMaxZoom(zoom: Number): this\r\n\t// Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option).\r\n\tsetMaxZoom: function (zoom) {\r\n\t\tthis.options.maxZoom = zoom;\r\n\r\n\t\tif (this._loaded && (this.getZoom() > this.options.maxZoom)) {\r\n\t\t\treturn this.setZoom(zoom);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this\r\n\t// Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any.\r\n\tpanInsideBounds: function (bounds, options) {\r\n\t\tthis._enforcingBounds = true;\r\n\t\tvar center = this.getCenter(),\r\n\t\t    newCenter = this._limitCenter(center, this._zoom, L.latLngBounds(bounds));\r\n\r\n\t\tif (!center.equals(newCenter)) {\r\n\t\t\tthis.panTo(newCenter, options);\r\n\t\t}\r\n\r\n\t\tthis._enforcingBounds = false;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method invalidateSize(options: Zoom/Pan options): this\r\n\t// Checks if the map container size changed and updates the map if so —\r\n\t// call it after you've changed the map size dynamically, also animating\r\n\t// pan by default. If `options.pan` is `false`, panning will not occur.\r\n\t// If `options.debounceMoveend` is `true`, it will delay `moveend` event so\r\n\t// that it doesn't happen often even if the method is called many\r\n\t// times in a row.\r\n\r\n\t// @alternative\r\n\t// @method invalidateSize(animate: Boolean): this\r\n\t// Checks if the map container size changed and updates the map if so —\r\n\t// call it after you've changed the map size dynamically, also animating\r\n\t// pan by default.\r\n\tinvalidateSize: function (options) {\r\n\t\tif (!this._loaded) { return this; }\r\n\r\n\t\toptions = L.extend({\r\n\t\t\tanimate: false,\r\n\t\t\tpan: true\r\n\t\t}, options === true ? {animate: true} : options);\r\n\r\n\t\tvar oldSize = this.getSize();\r\n\t\tthis._sizeChanged = true;\r\n\t\tthis._lastCenter = null;\r\n\r\n\t\tvar newSize = this.getSize(),\r\n\t\t    oldCenter = oldSize.divideBy(2).round(),\r\n\t\t    newCenter = newSize.divideBy(2).round(),\r\n\t\t    offset = oldCenter.subtract(newCenter);\r\n\r\n\t\tif (!offset.x && !offset.y) { return this; }\r\n\r\n\t\tif (options.animate && options.pan) {\r\n\t\t\tthis.panBy(offset);\r\n\r\n\t\t} else {\r\n\t\t\tif (options.pan) {\r\n\t\t\t\tthis._rawPanBy(offset);\r\n\t\t\t}\r\n\r\n\t\t\tthis.fire('move');\r\n\r\n\t\t\tif (options.debounceMoveend) {\r\n\t\t\t\tclearTimeout(this._sizeTimer);\r\n\t\t\t\tthis._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);\r\n\t\t\t} else {\r\n\t\t\t\tthis.fire('moveend');\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// @section Map state change events\r\n\t\t// @event resize: ResizeEvent\r\n\t\t// Fired when the map is resized.\r\n\t\treturn this.fire('resize', {\r\n\t\t\toldSize: oldSize,\r\n\t\t\tnewSize: newSize\r\n\t\t});\r\n\t},\r\n\r\n\t// @section Methods for modifying map state\r\n\t// @method stop(): this\r\n\t// Stops the currently running `panTo` or `flyTo` animation, if any.\r\n\tstop: function () {\r\n\t\tthis.setZoom(this._limitZoom(this._zoom));\r\n\t\tif (!this.options.zoomSnap) {\r\n\t\t\tthis.fire('viewreset');\r\n\t\t}\r\n\t\treturn this._stop();\r\n\t},\r\n\r\n\t// @section Geolocation methods\r\n\t// @method locate(options?: Locate options): this\r\n\t// Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound)\r\n\t// event with location data on success or a [`locationerror`](#map-locationerror) event on failure,\r\n\t// and optionally sets the map view to the user's location with respect to\r\n\t// detection accuracy (or to the world view if geolocation failed).\r\n\t// Note that, if your page doesn't use HTTPS, this method will fail in\r\n\t// modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins))\r\n\t// See `Locate options` for more details.\r\n\tlocate: function (options) {\r\n\r\n\t\toptions = this._locateOptions = L.extend({\r\n\t\t\ttimeout: 10000,\r\n\t\t\twatch: false\r\n\t\t\t// setView: false\r\n\t\t\t// maxZoom: <Number>\r\n\t\t\t// maximumAge: 0\r\n\t\t\t// enableHighAccuracy: false\r\n\t\t}, options);\r\n\r\n\t\tif (!('geolocation' in navigator)) {\r\n\t\t\tthis._handleGeolocationError({\r\n\t\t\t\tcode: 0,\r\n\t\t\t\tmessage: 'Geolocation not supported.'\r\n\t\t\t});\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tvar onResponse = L.bind(this._handleGeolocationResponse, this),\r\n\t\t    onError = L.bind(this._handleGeolocationError, this);\r\n\r\n\t\tif (options.watch) {\r\n\t\t\tthis._locationWatchId =\r\n\t\t\t        navigator.geolocation.watchPosition(onResponse, onError, options);\r\n\t\t} else {\r\n\t\t\tnavigator.geolocation.getCurrentPosition(onResponse, onError, options);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method stopLocate(): this\r\n\t// Stops watching location previously initiated by `map.locate({watch: true})`\r\n\t// and aborts resetting the map view if map.locate was called with\r\n\t// `{setView: true}`.\r\n\tstopLocate: function () {\r\n\t\tif (navigator.geolocation && navigator.geolocation.clearWatch) {\r\n\t\t\tnavigator.geolocation.clearWatch(this._locationWatchId);\r\n\t\t}\r\n\t\tif (this._locateOptions) {\r\n\t\t\tthis._locateOptions.setView = false;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_handleGeolocationError: function (error) {\r\n\t\tvar c = error.code,\r\n\t\t    message = error.message ||\r\n\t\t            (c === 1 ? 'permission denied' :\r\n\t\t            (c === 2 ? 'position unavailable' : 'timeout'));\r\n\r\n\t\tif (this._locateOptions.setView && !this._loaded) {\r\n\t\t\tthis.fitWorld();\r\n\t\t}\r\n\r\n\t\t// @section Location events\r\n\t\t// @event locationerror: ErrorEvent\r\n\t\t// Fired when geolocation (using the [`locate`](#map-locate) method) failed.\r\n\t\tthis.fire('locationerror', {\r\n\t\t\tcode: c,\r\n\t\t\tmessage: 'Geolocation error: ' + message + '.'\r\n\t\t});\r\n\t},\r\n\r\n\t_handleGeolocationResponse: function (pos) {\r\n\t\tvar lat = pos.coords.latitude,\r\n\t\t    lng = pos.coords.longitude,\r\n\t\t    latlng = new L.LatLng(lat, lng),\r\n\t\t    bounds = latlng.toBounds(pos.coords.accuracy),\r\n\t\t    options = this._locateOptions;\r\n\r\n\t\tif (options.setView) {\r\n\t\t\tvar zoom = this.getBoundsZoom(bounds);\r\n\t\t\tthis.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);\r\n\t\t}\r\n\r\n\t\tvar data = {\r\n\t\t\tlatlng: latlng,\r\n\t\t\tbounds: bounds,\r\n\t\t\ttimestamp: pos.timestamp\r\n\t\t};\r\n\r\n\t\tfor (var i in pos.coords) {\r\n\t\t\tif (typeof pos.coords[i] === 'number') {\r\n\t\t\t\tdata[i] = pos.coords[i];\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// @event locationfound: LocationEvent\r\n\t\t// Fired when geolocation (using the [`locate`](#map-locate) method)\r\n\t\t// went successfully.\r\n\t\tthis.fire('locationfound', data);\r\n\t},\r\n\r\n\t// TODO handler.addTo\r\n\t// TODO Appropiate docs section?\r\n\t// @section Other Methods\r\n\t// @method addHandler(name: String, HandlerClass: Function): this\r\n\t// Adds a new `Handler` to the map, given its name and constructor function.\r\n\taddHandler: function (name, HandlerClass) {\r\n\t\tif (!HandlerClass) { return this; }\r\n\r\n\t\tvar handler = this[name] = new HandlerClass(this);\r\n\r\n\t\tthis._handlers.push(handler);\r\n\r\n\t\tif (this.options[name]) {\r\n\t\t\thandler.enable();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method remove(): this\r\n\t// Destroys the map and clears all related event listeners.\r\n\tremove: function () {\r\n\r\n\t\tthis._initEvents(true);\r\n\r\n\t\tif (this._containerId !== this._container._leaflet_id) {\r\n\t\t\tthrow new Error('Map container is being reused by another instance');\r\n\t\t}\r\n\r\n\t\ttry {\r\n\t\t\t// throws error in IE6-8\r\n\t\t\tdelete this._container._leaflet_id;\r\n\t\t\tdelete this._containerId;\r\n\t\t} catch (e) {\r\n\t\t\t/*eslint-disable */\r\n\t\t\tthis._container._leaflet_id = undefined;\r\n\t\t\t/*eslint-enable */\r\n\t\t\tthis._containerId = undefined;\r\n\t\t}\r\n\r\n\t\tL.DomUtil.remove(this._mapPane);\r\n\r\n\t\tif (this._clearControlPos) {\r\n\t\t\tthis._clearControlPos();\r\n\t\t}\r\n\r\n\t\tthis._clearHandlers();\r\n\r\n\t\tif (this._loaded) {\r\n\t\t\t// @section Map state change events\r\n\t\t\t// @event unload: Event\r\n\t\t\t// Fired when the map is destroyed with [remove](#map-remove) method.\r\n\t\t\tthis.fire('unload');\r\n\t\t}\r\n\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tthis._layers[i].remove();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @section Other Methods\r\n\t// @method createPane(name: String, container?: HTMLElement): HTMLElement\r\n\t// Creates a new [map pane](#map-pane) with the given name if it doesn't exist already,\r\n\t// then returns it. The pane is created as a children of `container`, or\r\n\t// as a children of the main map pane if not set.\r\n\tcreatePane: function (name, container) {\r\n\t\tvar className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''),\r\n\t\t    pane = L.DomUtil.create('div', className, container || this._mapPane);\r\n\r\n\t\tif (name) {\r\n\t\t\tthis._panes[name] = pane;\r\n\t\t}\r\n\t\treturn pane;\r\n\t},\r\n\r\n\t// @section Methods for Getting Map State\r\n\r\n\t// @method getCenter(): LatLng\r\n\t// Returns the geographical center of the map view\r\n\tgetCenter: function () {\r\n\t\tthis._checkIfLoaded();\r\n\r\n\t\tif (this._lastCenter && !this._moved()) {\r\n\t\t\treturn this._lastCenter;\r\n\t\t}\r\n\t\treturn this.layerPointToLatLng(this._getCenterLayerPoint());\r\n\t},\r\n\r\n\t// @method getZoom(): Number\r\n\t// Returns the current zoom level of the map view\r\n\tgetZoom: function () {\r\n\t\treturn this._zoom;\r\n\t},\r\n\r\n\t// @method getBounds(): LatLngBounds\r\n\t// Returns the geographical bounds visible in the current map view\r\n\tgetBounds: function () {\r\n\t\tvar bounds = this.getPixelBounds(),\r\n\t\t    sw = this.unproject(bounds.getBottomLeft()),\r\n\t\t    ne = this.unproject(bounds.getTopRight());\r\n\r\n\t\treturn new L.LatLngBounds(sw, ne);\r\n\t},\r\n\r\n\t// @method getMinZoom(): Number\r\n\t// Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default.\r\n\tgetMinZoom: function () {\r\n\t\treturn this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom;\r\n\t},\r\n\r\n\t// @method getMaxZoom(): Number\r\n\t// Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers).\r\n\tgetMaxZoom: function () {\r\n\t\treturn this.options.maxZoom === undefined ?\r\n\t\t\t(this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :\r\n\t\t\tthis.options.maxZoom;\r\n\t},\r\n\r\n\t// @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean): Number\r\n\t// Returns the maximum zoom level on which the given bounds fit to the map\r\n\t// view in its entirety. If `inside` (optional) is set to `true`, the method\r\n\t// instead returns the minimum zoom level on which the map view fits into\r\n\t// the given bounds in its entirety.\r\n\tgetBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\t\tpadding = L.point(padding || [0, 0]);\r\n\r\n\t\tvar zoom = this.getZoom() || 0,\r\n\t\t    min = this.getMinZoom(),\r\n\t\t    max = this.getMaxZoom(),\r\n\t\t    nw = bounds.getNorthWest(),\r\n\t\t    se = bounds.getSouthEast(),\r\n\t\t    size = this.getSize().subtract(padding),\r\n\t\t    boundsSize = L.bounds(this.project(se, zoom), this.project(nw, zoom)).getSize(),\r\n\t\t    snap = L.Browser.any3d ? this.options.zoomSnap : 1;\r\n\r\n\t\tvar scale = Math.min(size.x / boundsSize.x, size.y / boundsSize.y);\r\n\t\tzoom = this.getScaleZoom(scale, zoom);\r\n\r\n\t\tif (snap) {\r\n\t\t\tzoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level\r\n\t\t\tzoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap;\r\n\t\t}\r\n\r\n\t\treturn Math.max(min, Math.min(max, zoom));\r\n\t},\r\n\r\n\t// @method getSize(): Point\r\n\t// Returns the current size of the map container (in pixels).\r\n\tgetSize: function () {\r\n\t\tif (!this._size || this._sizeChanged) {\r\n\t\t\tthis._size = new L.Point(\r\n\t\t\t\tthis._container.clientWidth || 0,\r\n\t\t\t\tthis._container.clientHeight || 0);\r\n\r\n\t\t\tthis._sizeChanged = false;\r\n\t\t}\r\n\t\treturn this._size.clone();\r\n\t},\r\n\r\n\t// @method getPixelBounds(): Bounds\r\n\t// Returns the bounds of the current map view in projected pixel\r\n\t// coordinates (sometimes useful in layer and overlay implementations).\r\n\tgetPixelBounds: function (center, zoom) {\r\n\t\tvar topLeftPoint = this._getTopLeftPoint(center, zoom);\r\n\t\treturn new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));\r\n\t},\r\n\r\n\t// TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to\r\n\t// the map pane? \"left point of the map layer\" can be confusing, specially\r\n\t// since there can be negative offsets.\r\n\t// @method getPixelOrigin(): Point\r\n\t// Returns the projected pixel coordinates of the top left point of\r\n\t// the map layer (useful in custom layer and overlay implementations).\r\n\tgetPixelOrigin: function () {\r\n\t\tthis._checkIfLoaded();\r\n\t\treturn this._pixelOrigin;\r\n\t},\r\n\r\n\t// @method getPixelWorldBounds(zoom?: Number): Bounds\r\n\t// Returns the world's bounds in pixel coordinates for zoom level `zoom`.\r\n\t// If `zoom` is omitted, the map's current zoom level is used.\r\n\tgetPixelWorldBounds: function (zoom) {\r\n\t\treturn this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom);\r\n\t},\r\n\r\n\t// @section Other Methods\r\n\r\n\t// @method getPane(pane: String|HTMLElement): HTMLElement\r\n\t// Returns a [map pane](#map-pane), given its name or its HTML element (its identity).\r\n\tgetPane: function (pane) {\r\n\t\treturn typeof pane === 'string' ? this._panes[pane] : pane;\r\n\t},\r\n\r\n\t// @method getPanes(): Object\r\n\t// Returns a plain object containing the names of all [panes](#map-pane) as keys and\r\n\t// the panes as values.\r\n\tgetPanes: function () {\r\n\t\treturn this._panes;\r\n\t},\r\n\r\n\t// @method getContainer: HTMLElement\r\n\t// Returns the HTML element that contains the map.\r\n\tgetContainer: function () {\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\r\n\t// @section Conversion Methods\r\n\r\n\t// @method getZoomScale(toZoom: Number, fromZoom: Number): Number\r\n\t// Returns the scale factor to be applied to a map transition from zoom level\r\n\t// `fromZoom` to `toZoom`. Used internally to help with zoom animations.\r\n\tgetZoomScale: function (toZoom, fromZoom) {\r\n\t\t// TODO replace with universal implementation after refactoring projections\r\n\t\tvar crs = this.options.crs;\r\n\t\tfromZoom = fromZoom === undefined ? this._zoom : fromZoom;\r\n\t\treturn crs.scale(toZoom) / crs.scale(fromZoom);\r\n\t},\r\n\r\n\t// @method getScaleZoom(scale: Number, fromZoom: Number): Number\r\n\t// Returns the zoom level that the map would end up at, if it is at `fromZoom`\r\n\t// level and everything is scaled by a factor of `scale`. Inverse of\r\n\t// [`getZoomScale`](#map-getZoomScale).\r\n\tgetScaleZoom: function (scale, fromZoom) {\r\n\t\tvar crs = this.options.crs;\r\n\t\tfromZoom = fromZoom === undefined ? this._zoom : fromZoom;\r\n\t\tvar zoom = crs.zoom(scale * crs.scale(fromZoom));\r\n\t\treturn isNaN(zoom) ? Infinity : zoom;\r\n\t},\r\n\r\n\t// @method project(latlng: LatLng, zoom: Number): Point\r\n\t// Projects a geographical coordinate `LatLng` according to the projection\r\n\t// of the map's CRS, then scales it according to `zoom` and the CRS's\r\n\t// `Transformation`. The result is pixel coordinate relative to\r\n\t// the CRS origin.\r\n\tproject: function (latlng, zoom) {\r\n\t\tzoom = zoom === undefined ? this._zoom : zoom;\r\n\t\treturn this.options.crs.latLngToPoint(L.latLng(latlng), zoom);\r\n\t},\r\n\r\n\t// @method unproject(point: Point, zoom: Number): LatLng\r\n\t// Inverse of [`project`](#map-project).\r\n\tunproject: function (point, zoom) {\r\n\t\tzoom = zoom === undefined ? this._zoom : zoom;\r\n\t\treturn this.options.crs.pointToLatLng(L.point(point), zoom);\r\n\t},\r\n\r\n\t// @method layerPointToLatLng(point: Point): LatLng\r\n\t// Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),\r\n\t// returns the corresponding geographical coordinate (for the current zoom level).\r\n\tlayerPointToLatLng: function (point) {\r\n\t\tvar projectedPoint = L.point(point).add(this.getPixelOrigin());\r\n\t\treturn this.unproject(projectedPoint);\r\n\t},\r\n\r\n\t// @method latLngToLayerPoint(latlng: LatLng): Point\r\n\t// Given a geographical coordinate, returns the corresponding pixel coordinate\r\n\t// relative to the [origin pixel](#map-getpixelorigin).\r\n\tlatLngToLayerPoint: function (latlng) {\r\n\t\tvar projectedPoint = this.project(L.latLng(latlng))._round();\r\n\t\treturn projectedPoint._subtract(this.getPixelOrigin());\r\n\t},\r\n\r\n\t// @method wrapLatLng(latlng: LatLng): LatLng\r\n\t// Returns a `LatLng` where `lat` and `lng` has been wrapped according to the\r\n\t// map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the\r\n\t// CRS's bounds.\r\n\t// By default this means longitude is wrapped around the dateline so its\r\n\t// value is between -180 and +180 degrees.\r\n\twrapLatLng: function (latlng) {\r\n\t\treturn this.options.crs.wrapLatLng(L.latLng(latlng));\r\n\t},\r\n\r\n\t// @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds\r\n\t// Returns a `LatLngBounds` with the same size as the given one, ensuring that\r\n\t// its center is within the CRS's bounds.\r\n\t// By default this means the center longitude is wrapped around the dateline so its\r\n\t// value is between -180 and +180 degrees, and the majority of the bounds\r\n\t// overlaps the CRS's bounds.\r\n\twrapLatLngBounds: function (latlng) {\r\n\t\treturn this.options.crs.wrapLatLngBounds(L.latLngBounds(latlng));\r\n\t},\r\n\r\n\t// @method distance(latlng1: LatLng, latlng2: LatLng): Number\r\n\t// Returns the distance between two geographical coordinates according to\r\n\t// the map's CRS. By default this measures distance in meters.\r\n\tdistance: function (latlng1, latlng2) {\r\n\t\treturn this.options.crs.distance(L.latLng(latlng1), L.latLng(latlng2));\r\n\t},\r\n\r\n\t// @method containerPointToLayerPoint(point: Point): Point\r\n\t// Given a pixel coordinate relative to the map container, returns the corresponding\r\n\t// pixel coordinate relative to the [origin pixel](#map-getpixelorigin).\r\n\tcontainerPointToLayerPoint: function (point) { // (Point)\r\n\t\treturn L.point(point).subtract(this._getMapPanePos());\r\n\t},\r\n\r\n\t// @method layerPointToContainerPoint(point: Point): Point\r\n\t// Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),\r\n\t// returns the corresponding pixel coordinate relative to the map container.\r\n\tlayerPointToContainerPoint: function (point) { // (Point)\r\n\t\treturn L.point(point).add(this._getMapPanePos());\r\n\t},\r\n\r\n\t// @method containerPointToLatLng(point: Point): LatLng\r\n\t// Given a pixel coordinate relative to the map container, returns\r\n\t// the corresponding geographical coordinate (for the current zoom level).\r\n\tcontainerPointToLatLng: function (point) {\r\n\t\tvar layerPoint = this.containerPointToLayerPoint(L.point(point));\r\n\t\treturn this.layerPointToLatLng(layerPoint);\r\n\t},\r\n\r\n\t// @method latLngToContainerPoint(latlng: LatLng): Point\r\n\t// Given a geographical coordinate, returns the corresponding pixel coordinate\r\n\t// relative to the map container.\r\n\tlatLngToContainerPoint: function (latlng) {\r\n\t\treturn this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));\r\n\t},\r\n\r\n\t// @method mouseEventToContainerPoint(ev: MouseEvent): Point\r\n\t// Given a MouseEvent object, returns the pixel coordinate relative to the\r\n\t// map container where the event took place.\r\n\tmouseEventToContainerPoint: function (e) {\r\n\t\treturn L.DomEvent.getMousePosition(e, this._container);\r\n\t},\r\n\r\n\t// @method mouseEventToLayerPoint(ev: MouseEvent): Point\r\n\t// Given a MouseEvent object, returns the pixel coordinate relative to\r\n\t// the [origin pixel](#map-getpixelorigin) where the event took place.\r\n\tmouseEventToLayerPoint: function (e) {\r\n\t\treturn this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));\r\n\t},\r\n\r\n\t// @method mouseEventToLatLng(ev: MouseEvent): LatLng\r\n\t// Given a MouseEvent object, returns geographical coordinate where the\r\n\t// event took place.\r\n\tmouseEventToLatLng: function (e) { // (MouseEvent)\r\n\t\treturn this.layerPointToLatLng(this.mouseEventToLayerPoint(e));\r\n\t},\r\n\r\n\r\n\t// map initialization methods\r\n\r\n\t_initContainer: function (id) {\r\n\t\tvar container = this._container = L.DomUtil.get(id);\r\n\r\n\t\tif (!container) {\r\n\t\t\tthrow new Error('Map container not found.');\r\n\t\t} else if (container._leaflet_id) {\r\n\t\t\tthrow new Error('Map container is already initialized.');\r\n\t\t}\r\n\r\n\t\tL.DomEvent.addListener(container, 'scroll', this._onScroll, this);\r\n\t\tthis._containerId = L.Util.stamp(container);\r\n\t},\r\n\r\n\t_initLayout: function () {\r\n\t\tvar container = this._container;\r\n\r\n\t\tthis._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d;\r\n\r\n\t\tL.DomUtil.addClass(container, 'leaflet-container' +\r\n\t\t\t(L.Browser.touch ? ' leaflet-touch' : '') +\r\n\t\t\t(L.Browser.retina ? ' leaflet-retina' : '') +\r\n\t\t\t(L.Browser.ielt9 ? ' leaflet-oldie' : '') +\r\n\t\t\t(L.Browser.safari ? ' leaflet-safari' : '') +\r\n\t\t\t(this._fadeAnimated ? ' leaflet-fade-anim' : ''));\r\n\r\n\t\tvar position = L.DomUtil.getStyle(container, 'position');\r\n\r\n\t\tif (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {\r\n\t\t\tcontainer.style.position = 'relative';\r\n\t\t}\r\n\r\n\t\tthis._initPanes();\r\n\r\n\t\tif (this._initControlPos) {\r\n\t\t\tthis._initControlPos();\r\n\t\t}\r\n\t},\r\n\r\n\t_initPanes: function () {\r\n\t\tvar panes = this._panes = {};\r\n\t\tthis._paneRenderers = {};\r\n\r\n\t\t// @section\r\n\t\t//\r\n\t\t// Panes are DOM elements used to control the ordering of layers on the map. You\r\n\t\t// can access panes with [`map.getPane`](#map-getpane) or\r\n\t\t// [`map.getPanes`](#map-getpanes) methods. New panes can be created with the\r\n\t\t// [`map.createPane`](#map-createpane) method.\r\n\t\t//\r\n\t\t// Every map has the following default panes that differ only in zIndex.\r\n\t\t//\r\n\t\t// @pane mapPane: HTMLElement = 'auto'\r\n\t\t// Pane that contains all other map panes\r\n\r\n\t\tthis._mapPane = this.createPane('mapPane', this._container);\r\n\t\tL.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));\r\n\r\n\t\t// @pane tilePane: HTMLElement = 200\r\n\t\t// Pane for `GridLayer`s and `TileLayer`s\r\n\t\tthis.createPane('tilePane');\r\n\t\t// @pane overlayPane: HTMLElement = 400\r\n\t\t// Pane for vector overlays (`Path`s), like `Polyline`s and `Polygon`s\r\n\t\tthis.createPane('shadowPane');\r\n\t\t// @pane shadowPane: HTMLElement = 500\r\n\t\t// Pane for overlay shadows (e.g. `Marker` shadows)\r\n\t\tthis.createPane('overlayPane');\r\n\t\t// @pane markerPane: HTMLElement = 600\r\n\t\t// Pane for `Icon`s of `Marker`s\r\n\t\tthis.createPane('markerPane');\r\n\t\t// @pane tooltipPane: HTMLElement = 650\r\n\t\t// Pane for tooltip.\r\n\t\tthis.createPane('tooltipPane');\r\n\t\t// @pane popupPane: HTMLElement = 700\r\n\t\t// Pane for `Popup`s.\r\n\t\tthis.createPane('popupPane');\r\n\r\n\t\tif (!this.options.markerZoomAnimation) {\r\n\t\t\tL.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide');\r\n\t\t\tL.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide');\r\n\t\t}\r\n\t},\r\n\r\n\r\n\t// private methods that modify map state\r\n\r\n\t// @section Map state change events\r\n\t_resetView: function (center, zoom) {\r\n\t\tL.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));\r\n\r\n\t\tvar loading = !this._loaded;\r\n\t\tthis._loaded = true;\r\n\t\tzoom = this._limitZoom(zoom);\r\n\r\n\t\tthis.fire('viewprereset');\r\n\r\n\t\tvar zoomChanged = this._zoom !== zoom;\r\n\t\tthis\r\n\t\t\t._moveStart(zoomChanged)\r\n\t\t\t._move(center, zoom)\r\n\t\t\t._moveEnd(zoomChanged);\r\n\r\n\t\t// @event viewreset: Event\r\n\t\t// Fired when the map needs to redraw its content (this usually happens\r\n\t\t// on map zoom or load). Very useful for creating custom overlays.\r\n\t\tthis.fire('viewreset');\r\n\r\n\t\t// @event load: Event\r\n\t\t// Fired when the map is initialized (when its center and zoom are set\r\n\t\t// for the first time).\r\n\t\tif (loading) {\r\n\t\t\tthis.fire('load');\r\n\t\t}\r\n\t},\r\n\r\n\t_moveStart: function (zoomChanged) {\r\n\t\t// @event zoomstart: Event\r\n\t\t// Fired when the map zoom is about to change (e.g. before zoom animation).\r\n\t\t// @event movestart: Event\r\n\t\t// Fired when the view of the map starts changing (e.g. user starts dragging the map).\r\n\t\tif (zoomChanged) {\r\n\t\t\tthis.fire('zoomstart');\r\n\t\t}\r\n\t\treturn this.fire('movestart');\r\n\t},\r\n\r\n\t_move: function (center, zoom, data) {\r\n\t\tif (zoom === undefined) {\r\n\t\t\tzoom = this._zoom;\r\n\t\t}\r\n\t\tvar zoomChanged = this._zoom !== zoom;\r\n\r\n\t\tthis._zoom = zoom;\r\n\t\tthis._lastCenter = center;\r\n\t\tthis._pixelOrigin = this._getNewPixelOrigin(center);\r\n\r\n\t\t// @event zoom: Event\r\n\t\t// Fired repeatedly during any change in zoom level, including zoom\r\n\t\t// and fly animations.\r\n\t\tif (zoomChanged || (data && data.pinch)) {\t// Always fire 'zoom' if pinching because #3530\r\n\t\t\tthis.fire('zoom', data);\r\n\t\t}\r\n\r\n\t\t// @event move: Event\r\n\t\t// Fired repeatedly during any movement of the map, including pan and\r\n\t\t// fly animations.\r\n\t\treturn this.fire('move', data);\r\n\t},\r\n\r\n\t_moveEnd: function (zoomChanged) {\r\n\t\t// @event zoomend: Event\r\n\t\t// Fired when the map has changed, after any animations.\r\n\t\tif (zoomChanged) {\r\n\t\t\tthis.fire('zoomend');\r\n\t\t}\r\n\r\n\t\t// @event moveend: Event\r\n\t\t// Fired when the center of the map stops changing (e.g. user stopped\r\n\t\t// dragging the map).\r\n\t\treturn this.fire('moveend');\r\n\t},\r\n\r\n\t_stop: function () {\r\n\t\tL.Util.cancelAnimFrame(this._flyToFrame);\r\n\t\tif (this._panAnim) {\r\n\t\t\tthis._panAnim.stop();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_rawPanBy: function (offset) {\r\n\t\tL.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));\r\n\t},\r\n\r\n\t_getZoomSpan: function () {\r\n\t\treturn this.getMaxZoom() - this.getMinZoom();\r\n\t},\r\n\r\n\t_panInsideMaxBounds: function () {\r\n\t\tif (!this._enforcingBounds) {\r\n\t\t\tthis.panInsideBounds(this.options.maxBounds);\r\n\t\t}\r\n\t},\r\n\r\n\t_checkIfLoaded: function () {\r\n\t\tif (!this._loaded) {\r\n\t\t\tthrow new Error('Set map center and zoom first.');\r\n\t\t}\r\n\t},\r\n\r\n\t// DOM event handling\r\n\r\n\t// @section Interaction events\r\n\t_initEvents: function (remove) {\r\n\t\tif (!L.DomEvent) { return; }\r\n\r\n\t\tthis._targets = {};\r\n\t\tthis._targets[L.stamp(this._container)] = this;\r\n\r\n\t\tvar onOff = remove ? 'off' : 'on';\r\n\r\n\t\t// @event click: MouseEvent\r\n\t\t// Fired when the user clicks (or taps) the map.\r\n\t\t// @event dblclick: MouseEvent\r\n\t\t// Fired when the user double-clicks (or double-taps) the map.\r\n\t\t// @event mousedown: MouseEvent\r\n\t\t// Fired when the user pushes the mouse button on the map.\r\n\t\t// @event mouseup: MouseEvent\r\n\t\t// Fired when the user releases the mouse button on the map.\r\n\t\t// @event mouseover: MouseEvent\r\n\t\t// Fired when the mouse enters the map.\r\n\t\t// @event mouseout: MouseEvent\r\n\t\t// Fired when the mouse leaves the map.\r\n\t\t// @event mousemove: MouseEvent\r\n\t\t// Fired while the mouse moves over the map.\r\n\t\t// @event contextmenu: MouseEvent\r\n\t\t// Fired when the user pushes the right mouse button on the map, prevents\r\n\t\t// default browser context menu from showing if there are listeners on\r\n\t\t// this event. Also fired on mobile when the user holds a single touch\r\n\t\t// for a second (also called long press).\r\n\t\t// @event keypress: KeyboardEvent\r\n\t\t// Fired when the user presses a key from the keyboard while the map is focused.\r\n\t\tL.DomEvent[onOff](this._container, 'click dblclick mousedown mouseup ' +\r\n\t\t\t'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this);\r\n\r\n\t\tif (this.options.trackResize) {\r\n\t\t\tL.DomEvent[onOff](window, 'resize', this._onResize, this);\r\n\t\t}\r\n\r\n\t\tif (L.Browser.any3d && this.options.transform3DLimit) {\r\n\t\t\tthis[onOff]('moveend', this._onMoveEnd);\r\n\t\t}\r\n\t},\r\n\r\n\t_onResize: function () {\r\n\t\tL.Util.cancelAnimFrame(this._resizeRequest);\r\n\t\tthis._resizeRequest = L.Util.requestAnimFrame(\r\n\t\t        function () { this.invalidateSize({debounceMoveend: true}); }, this);\r\n\t},\r\n\r\n\t_onScroll: function () {\r\n\t\tthis._container.scrollTop  = 0;\r\n\t\tthis._container.scrollLeft = 0;\r\n\t},\r\n\r\n\t_onMoveEnd: function () {\r\n\t\tvar pos = this._getMapPanePos();\r\n\t\tif (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) {\r\n\t\t\t// https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have\r\n\t\t\t// a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/\r\n\t\t\tthis._resetView(this.getCenter(), this.getZoom());\r\n\t\t}\r\n\t},\r\n\r\n\t_findEventTargets: function (e, type) {\r\n\t\tvar targets = [],\r\n\t\t    target,\r\n\t\t    isHover = type === 'mouseout' || type === 'mouseover',\r\n\t\t    src = e.target || e.srcElement,\r\n\t\t    dragging = false;\r\n\r\n\t\twhile (src) {\r\n\t\t\ttarget = this._targets[L.stamp(src)];\r\n\t\t\tif (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) {\r\n\t\t\t\t// Prevent firing click after you just dragged an object.\r\n\t\t\t\tdragging = true;\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t\tif (target && target.listens(type, true)) {\r\n\t\t\t\tif (isHover && !L.DomEvent._isExternalTarget(src, e)) { break; }\r\n\t\t\t\ttargets.push(target);\r\n\t\t\t\tif (isHover) { break; }\r\n\t\t\t}\r\n\t\t\tif (src === this._container) { break; }\r\n\t\t\tsrc = src.parentNode;\r\n\t\t}\r\n\t\tif (!targets.length && !dragging && !isHover && L.DomEvent._isExternalTarget(src, e)) {\r\n\t\t\ttargets = [this];\r\n\t\t}\r\n\t\treturn targets;\r\n\t},\r\n\r\n\t_handleDOMEvent: function (e) {\r\n\t\tif (!this._loaded || L.DomEvent._skipped(e)) { return; }\r\n\r\n\t\tvar type = e.type === 'keypress' && e.keyCode === 13 ? 'click' : e.type;\r\n\r\n\t\tif (type === 'mousedown') {\r\n\t\t\t// prevents outline when clicking on keyboard-focusable element\r\n\t\t\tL.DomUtil.preventOutline(e.target || e.srcElement);\r\n\t\t}\r\n\r\n\t\tthis._fireDOMEvent(e, type);\r\n\t},\r\n\r\n\t_fireDOMEvent: function (e, type, targets) {\r\n\r\n\t\tif (e.type === 'click') {\r\n\t\t\t// Fire a synthetic 'preclick' event which propagates up (mainly for closing popups).\r\n\t\t\t// @event preclick: MouseEvent\r\n\t\t\t// Fired before mouse click on the map (sometimes useful when you\r\n\t\t\t// want something to happen on click before any existing click\r\n\t\t\t// handlers start running).\r\n\t\t\tvar synth = L.Util.extend({}, e);\r\n\t\t\tsynth.type = 'preclick';\r\n\t\t\tthis._fireDOMEvent(synth, synth.type, targets);\r\n\t\t}\r\n\r\n\t\tif (e._stopped) { return; }\r\n\r\n\t\t// Find the layer the event is propagating from and its parents.\r\n\t\ttargets = (targets || []).concat(this._findEventTargets(e, type));\r\n\r\n\t\tif (!targets.length) { return; }\r\n\r\n\t\tvar target = targets[0];\r\n\t\tif (type === 'contextmenu' && target.listens(type, true)) {\r\n\t\t\tL.DomEvent.preventDefault(e);\r\n\t\t}\r\n\r\n\t\tvar data = {\r\n\t\t\toriginalEvent: e\r\n\t\t};\r\n\r\n\t\tif (e.type !== 'keypress') {\r\n\t\t\tvar isMarker = target instanceof L.Marker;\r\n\t\t\tdata.containerPoint = isMarker ?\r\n\t\t\t\t\tthis.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e);\r\n\t\t\tdata.layerPoint = this.containerPointToLayerPoint(data.containerPoint);\r\n\t\t\tdata.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint);\r\n\t\t}\r\n\r\n\t\tfor (var i = 0; i < targets.length; i++) {\r\n\t\t\ttargets[i].fire(type, data, true);\r\n\t\t\tif (data.originalEvent._stopped ||\r\n\t\t\t\t(targets[i].options.nonBubblingEvents && L.Util.indexOf(targets[i].options.nonBubblingEvents, type) !== -1)) { return; }\r\n\t\t}\r\n\t},\r\n\r\n\t_draggableMoved: function (obj) {\r\n\t\tobj = obj.dragging && obj.dragging.enabled() ? obj : this;\r\n\t\treturn (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());\r\n\t},\r\n\r\n\t_clearHandlers: function () {\r\n\t\tfor (var i = 0, len = this._handlers.length; i < len; i++) {\r\n\t\t\tthis._handlers[i].disable();\r\n\t\t}\r\n\t},\r\n\r\n\t// @section Other Methods\r\n\r\n\t// @method whenReady(fn: Function, context?: Object): this\r\n\t// Runs the given function `fn` when the map gets initialized with\r\n\t// a view (center and zoom) and at least one layer, or immediately\r\n\t// if it's already initialized, optionally passing a function context.\r\n\twhenReady: function (callback, context) {\r\n\t\tif (this._loaded) {\r\n\t\t\tcallback.call(context || this, {target: this});\r\n\t\t} else {\r\n\t\t\tthis.on('load', callback, context);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\r\n\t// private methods for getting map state\r\n\r\n\t_getMapPanePos: function () {\r\n\t\treturn L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0);\r\n\t},\r\n\r\n\t_moved: function () {\r\n\t\tvar pos = this._getMapPanePos();\r\n\t\treturn pos && !pos.equals([0, 0]);\r\n\t},\r\n\r\n\t_getTopLeftPoint: function (center, zoom) {\r\n\t\tvar pixelOrigin = center && zoom !== undefined ?\r\n\t\t\tthis._getNewPixelOrigin(center, zoom) :\r\n\t\t\tthis.getPixelOrigin();\r\n\t\treturn pixelOrigin.subtract(this._getMapPanePos());\r\n\t},\r\n\r\n\t_getNewPixelOrigin: function (center, zoom) {\r\n\t\tvar viewHalf = this.getSize()._divideBy(2);\r\n\t\treturn this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();\r\n\t},\r\n\r\n\t_latLngToNewLayerPoint: function (latlng, zoom, center) {\r\n\t\tvar topLeft = this._getNewPixelOrigin(center, zoom);\r\n\t\treturn this.project(latlng, zoom)._subtract(topLeft);\r\n\t},\r\n\r\n\t_latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) {\r\n\t\tvar topLeft = this._getNewPixelOrigin(center, zoom);\r\n\t\treturn L.bounds([\r\n\t\t\tthis.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft),\r\n\t\t\tthis.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft),\r\n\t\t\tthis.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft),\r\n\t\t\tthis.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft)\r\n\t\t]);\r\n\t},\r\n\r\n\t// layer point of the current center\r\n\t_getCenterLayerPoint: function () {\r\n\t\treturn this.containerPointToLayerPoint(this.getSize()._divideBy(2));\r\n\t},\r\n\r\n\t// offset of the specified place to the current center in pixels\r\n\t_getCenterOffset: function (latlng) {\r\n\t\treturn this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());\r\n\t},\r\n\r\n\t// adjust center for view to get inside bounds\r\n\t_limitCenter: function (center, zoom, bounds) {\r\n\r\n\t\tif (!bounds) { return center; }\r\n\r\n\t\tvar centerPoint = this.project(center, zoom),\r\n\t\t    viewHalf = this.getSize().divideBy(2),\r\n\t\t    viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),\r\n\t\t    offset = this._getBoundsOffset(viewBounds, bounds, zoom);\r\n\r\n\t\t// If offset is less than a pixel, ignore.\r\n\t\t// This prevents unstable projections from getting into\r\n\t\t// an infinite loop of tiny offsets.\r\n\t\tif (offset.round().equals([0, 0])) {\r\n\t\t\treturn center;\r\n\t\t}\r\n\r\n\t\treturn this.unproject(centerPoint.add(offset), zoom);\r\n\t},\r\n\r\n\t// adjust offset for view to get inside bounds\r\n\t_limitOffset: function (offset, bounds) {\r\n\t\tif (!bounds) { return offset; }\r\n\r\n\t\tvar viewBounds = this.getPixelBounds(),\r\n\t\t    newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));\r\n\r\n\t\treturn offset.add(this._getBoundsOffset(newBounds, bounds));\r\n\t},\r\n\r\n\t// returns offset needed for pxBounds to get inside maxBounds at a specified zoom\r\n\t_getBoundsOffset: function (pxBounds, maxBounds, zoom) {\r\n\t\tvar projectedMaxBounds = L.bounds(\r\n\t\t        this.project(maxBounds.getNorthEast(), zoom),\r\n\t\t        this.project(maxBounds.getSouthWest(), zoom)\r\n\t\t    ),\r\n\t\t    minOffset = projectedMaxBounds.min.subtract(pxBounds.min),\r\n\t\t    maxOffset = projectedMaxBounds.max.subtract(pxBounds.max),\r\n\r\n\t\t    dx = this._rebound(minOffset.x, -maxOffset.x),\r\n\t\t    dy = this._rebound(minOffset.y, -maxOffset.y);\r\n\r\n\t\treturn new L.Point(dx, dy);\r\n\t},\r\n\r\n\t_rebound: function (left, right) {\r\n\t\treturn left + right > 0 ?\r\n\t\t\tMath.round(left - right) / 2 :\r\n\t\t\tMath.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));\r\n\t},\r\n\r\n\t_limitZoom: function (zoom) {\r\n\t\tvar min = this.getMinZoom(),\r\n\t\t    max = this.getMaxZoom(),\r\n\t\t    snap = L.Browser.any3d ? this.options.zoomSnap : 1;\r\n\t\tif (snap) {\r\n\t\t\tzoom = Math.round(zoom / snap) * snap;\r\n\t\t}\r\n\t\treturn Math.max(min, Math.min(max, zoom));\r\n\t},\r\n\r\n\t_onPanTransitionStep: function () {\r\n\t\tthis.fire('move');\r\n\t},\r\n\r\n\t_onPanTransitionEnd: function () {\r\n\t\tL.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');\r\n\t\tthis.fire('moveend');\r\n\t},\r\n\r\n\t_tryAnimatedPan: function (center, options) {\r\n\t\t// difference between the new and current centers in pixels\r\n\t\tvar offset = this._getCenterOffset(center)._floor();\r\n\r\n\t\t// don't animate too far unless animate: true specified in options\r\n\t\tif ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }\r\n\r\n\t\tthis.panBy(offset, options);\r\n\r\n\t\treturn true;\r\n\t},\r\n\r\n\t_createAnimProxy: function () {\r\n\r\n\t\tvar proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated');\r\n\t\tthis._panes.mapPane.appendChild(proxy);\r\n\r\n\t\tthis.on('zoomanim', function (e) {\r\n\t\t\tvar prop = L.DomUtil.TRANSFORM,\r\n\t\t\t    transform = proxy.style[prop];\r\n\r\n\t\t\tL.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));\r\n\r\n\t\t\t// workaround for case when transform is the same and so transitionend event is not fired\r\n\t\t\tif (transform === proxy.style[prop] && this._animatingZoom) {\r\n\t\t\t\tthis._onZoomTransitionEnd();\r\n\t\t\t}\r\n\t\t}, this);\r\n\r\n\t\tthis.on('load moveend', function () {\r\n\t\t\tvar c = this.getCenter(),\r\n\t\t\t    z = this.getZoom();\r\n\t\t\tL.DomUtil.setTransform(proxy, this.project(c, z), this.getZoomScale(z, 1));\r\n\t\t}, this);\r\n\t},\r\n\r\n\t_catchTransitionEnd: function (e) {\r\n\t\tif (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {\r\n\t\t\tthis._onZoomTransitionEnd();\r\n\t\t}\r\n\t},\r\n\r\n\t_nothingToAnimate: function () {\r\n\t\treturn !this._container.getElementsByClassName('leaflet-zoom-animated').length;\r\n\t},\r\n\r\n\t_tryAnimatedZoom: function (center, zoom, options) {\r\n\r\n\t\tif (this._animatingZoom) { return true; }\r\n\r\n\t\toptions = options || {};\r\n\r\n\t\t// don't animate if disabled, not supported or zoom difference is too large\r\n\t\tif (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||\r\n\t\t        Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }\r\n\r\n\t\t// offset is the pixel coords of the zoom origin relative to the current center\r\n\t\tvar scale = this.getZoomScale(zoom),\r\n\t\t    offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale);\r\n\r\n\t\t// don't animate if the zoom origin isn't within one screen from the current center, unless forced\r\n\t\tif (options.animate !== true && !this.getSize().contains(offset)) { return false; }\r\n\r\n\t\tL.Util.requestAnimFrame(function () {\r\n\t\t\tthis\r\n\t\t\t    ._moveStart(true)\r\n\t\t\t    ._animateZoom(center, zoom, true);\r\n\t\t}, this);\r\n\r\n\t\treturn true;\r\n\t},\r\n\r\n\t_animateZoom: function (center, zoom, startAnim, noUpdate) {\r\n\t\tif (startAnim) {\r\n\t\t\tthis._animatingZoom = true;\r\n\r\n\t\t\t// remember what center/zoom to set after animation\r\n\t\t\tthis._animateToCenter = center;\r\n\t\t\tthis._animateToZoom = zoom;\r\n\r\n\t\t\tL.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');\r\n\t\t}\r\n\r\n\t\t// @event zoomanim: ZoomAnimEvent\r\n\t\t// Fired on every frame of a zoom animation\r\n\t\tthis.fire('zoomanim', {\r\n\t\t\tcenter: center,\r\n\t\t\tzoom: zoom,\r\n\t\t\tnoUpdate: noUpdate\r\n\t\t});\r\n\r\n\t\t// Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693\r\n\t\tsetTimeout(L.bind(this._onZoomTransitionEnd, this), 250);\r\n\t},\r\n\r\n\t_onZoomTransitionEnd: function () {\r\n\t\tif (!this._animatingZoom) { return; }\r\n\r\n\t\tL.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');\r\n\r\n\t\tthis._animatingZoom = false;\r\n\r\n\t\tthis._move(this._animateToCenter, this._animateToZoom);\r\n\r\n\t\t// This anim frame should prevent an obscure iOS webkit tile loading race condition.\r\n\t\tL.Util.requestAnimFrame(function () {\r\n\t\t\tthis._moveEnd(true);\r\n\t\t}, this);\r\n\t}\r\n});\r\n\r\n// @section\r\n\r\n// @factory L.map(id: String, options?: Map options)\r\n// Instantiates a map object given the DOM ID of a `<div>` element\r\n// and optionally an object literal with `Map options`.\r\n//\r\n// @alternative\r\n// @factory L.map(el: HTMLElement, options?: Map options)\r\n// Instantiates a map object given an instance of a `<div>` HTML element\r\n// and optionally an object literal with `Map options`.\r\nL.map = function (id, options) {\r\n\treturn new L.Map(id, options);\r\n};\r\n\n\n\n\n/*\n * @class Layer\n * @inherits Evented\n * @aka L.Layer\n * @aka ILayer\n *\n * A set of methods from the Layer base class that all Leaflet layers use.\n * Inherits all methods, options and events from `L.Evented`.\n *\n * @example\n *\n * ```js\n * var layer = L.Marker(latlng).addTo(map);\n * layer.addTo(map);\n * layer.remove();\n * ```\n *\n * @event add: Event\n * Fired after the layer is added to a map\n *\n * @event remove: Event\n * Fired after the layer is removed from a map\n */\n\n\nL.Layer = L.Evented.extend({\n\n\t// Classes extending `L.Layer` will inherit the following options:\n\toptions: {\n\t\t// @option pane: String = 'overlayPane'\n\t\t// By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default.\n\t\tpane: 'overlayPane',\n\t\tnonBubblingEvents: [],  // Array of events that should not be bubbled to DOM parents (like the map),\n\n\t\t// @option attribution: String = null\n\t\t// String to be shown in the attribution control, describes the layer data, e.g. \"© Mapbox\".\n\t\tattribution: null\n\t},\n\n\t/* @section\n\t * Classes extending `L.Layer` will inherit the following methods:\n\t *\n\t * @method addTo(map: Map): this\n\t * Adds the layer to the given map\n\t */\n\taddTo: function (map) {\n\t\tmap.addLayer(this);\n\t\treturn this;\n\t},\n\n\t// @method remove: this\n\t// Removes the layer from the map it is currently active on.\n\tremove: function () {\n\t\treturn this.removeFrom(this._map || this._mapToAdd);\n\t},\n\n\t// @method removeFrom(map: Map): this\n\t// Removes the layer from the given map\n\tremoveFrom: function (obj) {\n\t\tif (obj) {\n\t\t\tobj.removeLayer(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method getPane(name? : String): HTMLElement\n\t// Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer.\n\tgetPane: function (name) {\n\t\treturn this._map.getPane(name ? (this.options[name] || name) : this.options.pane);\n\t},\n\n\taddInteractiveTarget: function (targetEl) {\n\t\tthis._map._targets[L.stamp(targetEl)] = this;\n\t\treturn this;\n\t},\n\n\tremoveInteractiveTarget: function (targetEl) {\n\t\tdelete this._map._targets[L.stamp(targetEl)];\n\t\treturn this;\n\t},\n\n\t// @method getAttribution: String\n\t// Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution).\n\tgetAttribution: function () {\n\t\treturn this.options.attribution;\n\t},\n\n\t_layerAdd: function (e) {\n\t\tvar map = e.target;\n\n\t\t// check in case layer gets added and then removed before the map is ready\n\t\tif (!map.hasLayer(this)) { return; }\n\n\t\tthis._map = map;\n\t\tthis._zoomAnimated = map._zoomAnimated;\n\n\t\tif (this.getEvents) {\n\t\t\tvar events = this.getEvents();\n\t\t\tmap.on(events, this);\n\t\t\tthis.once('remove', function () {\n\t\t\t\tmap.off(events, this);\n\t\t\t}, this);\n\t\t}\n\n\t\tthis.onAdd(map);\n\n\t\tif (this.getAttribution && map.attributionControl) {\n\t\t\tmap.attributionControl.addAttribution(this.getAttribution());\n\t\t}\n\n\t\tthis.fire('add');\n\t\tmap.fire('layeradd', {layer: this});\n\t}\n});\n\n/* @section Extension methods\n * @uninheritable\n *\n * Every layer should extend from `L.Layer` and (re-)implement the following methods.\n *\n * @method onAdd(map: Map): this\n * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer).\n *\n * @method onRemove(map: Map): this\n * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer).\n *\n * @method getEvents(): Object\n * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer.\n *\n * @method getAttribution(): String\n * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible.\n *\n * @method beforeAdd(map: Map): this\n * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only.\n */\n\n\n/* @namespace Map\n * @section Layer events\n *\n * @event layeradd: LayerEvent\n * Fired when a new layer is added to the map.\n *\n * @event layerremove: LayerEvent\n * Fired when some layer is removed from the map\n *\n * @section Methods for Layers and Controls\n */\nL.Map.include({\n\t// @method addLayer(layer: Layer): this\n\t// Adds the given layer to the map\n\taddLayer: function (layer) {\n\t\tvar id = L.stamp(layer);\n\t\tif (this._layers[id]) { return this; }\n\t\tthis._layers[id] = layer;\n\n\t\tlayer._mapToAdd = this;\n\n\t\tif (layer.beforeAdd) {\n\t\t\tlayer.beforeAdd(this);\n\t\t}\n\n\t\tthis.whenReady(layer._layerAdd, layer);\n\n\t\treturn this;\n\t},\n\n\t// @method removeLayer(layer: Layer): this\n\t// Removes the given layer from the map.\n\tremoveLayer: function (layer) {\n\t\tvar id = L.stamp(layer);\n\n\t\tif (!this._layers[id]) { return this; }\n\n\t\tif (this._loaded) {\n\t\t\tlayer.onRemove(this);\n\t\t}\n\n\t\tif (layer.getAttribution && this.attributionControl) {\n\t\t\tthis.attributionControl.removeAttribution(layer.getAttribution());\n\t\t}\n\n\t\tdelete this._layers[id];\n\n\t\tif (this._loaded) {\n\t\t\tthis.fire('layerremove', {layer: layer});\n\t\t\tlayer.fire('remove');\n\t\t}\n\n\t\tlayer._map = layer._mapToAdd = null;\n\n\t\treturn this;\n\t},\n\n\t// @method hasLayer(layer: Layer): Boolean\n\t// Returns `true` if the given layer is currently added to the map\n\thasLayer: function (layer) {\n\t\treturn !!layer && (L.stamp(layer) in this._layers);\n\t},\n\n\t/* @method eachLayer(fn: Function, context?: Object): this\n\t * Iterates over the layers of the map, optionally specifying context of the iterator function.\n\t * ```\n\t * map.eachLayer(function(layer){\n\t *     layer.bindPopup('Hello');\n\t * });\n\t * ```\n\t */\n\teachLayer: function (method, context) {\n\t\tfor (var i in this._layers) {\n\t\t\tmethod.call(context, this._layers[i]);\n\t\t}\n\t\treturn this;\n\t},\n\n\t_addLayers: function (layers) {\n\t\tlayers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];\n\n\t\tfor (var i = 0, len = layers.length; i < len; i++) {\n\t\t\tthis.addLayer(layers[i]);\n\t\t}\n\t},\n\n\t_addZoomLimit: function (layer) {\n\t\tif (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {\n\t\t\tthis._zoomBoundLayers[L.stamp(layer)] = layer;\n\t\t\tthis._updateZoomLevels();\n\t\t}\n\t},\n\n\t_removeZoomLimit: function (layer) {\n\t\tvar id = L.stamp(layer);\n\n\t\tif (this._zoomBoundLayers[id]) {\n\t\t\tdelete this._zoomBoundLayers[id];\n\t\t\tthis._updateZoomLevels();\n\t\t}\n\t},\n\n\t_updateZoomLevels: function () {\n\t\tvar minZoom = Infinity,\n\t\t    maxZoom = -Infinity,\n\t\t    oldZoomSpan = this._getZoomSpan();\n\n\t\tfor (var i in this._zoomBoundLayers) {\n\t\t\tvar options = this._zoomBoundLayers[i].options;\n\n\t\t\tminZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);\n\t\t\tmaxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);\n\t\t}\n\n\t\tthis._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;\n\t\tthis._layersMinZoom = minZoom === Infinity ? undefined : minZoom;\n\n\t\t// @section Map state change events\n\t\t// @event zoomlevelschange: Event\n\t\t// Fired when the number of zoomlevels on the map is changed due\n\t\t// to adding or removing a layer.\n\t\tif (oldZoomSpan !== this._getZoomSpan()) {\n\t\t\tthis.fire('zoomlevelschange');\n\t\t}\n\n\t\tif (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) {\n\t\t\tthis.setZoom(this._layersMaxZoom);\n\t\t}\n\t\tif (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) {\n\t\t\tthis.setZoom(this._layersMinZoom);\n\t\t}\n\t}\n});\n\n\n\n/*\r\n * @namespace DomEvent\r\n * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally.\r\n */\r\n\r\n// Inspired by John Resig, Dean Edwards and YUI addEvent implementations.\r\n\r\n\r\n\r\nvar eventsKey = '_leaflet_events';\r\n\r\nL.DomEvent = {\r\n\r\n\t// @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this\r\n\t// Adds a listener function (`fn`) to a particular DOM event type of the\r\n\t// element `el`. You can optionally specify the context of the listener\r\n\t// (object the `this` keyword will point to). You can also pass several\r\n\t// space-separated types (e.g. `'click dblclick'`).\r\n\r\n\t// @alternative\r\n\t// @function on(el: HTMLElement, eventMap: Object, context?: Object): this\r\n\t// Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n\ton: function (obj, types, fn, context) {\r\n\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis._on(obj, type, types[type], fn);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._on(obj, types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this\r\n\t// Removes a previously added listener function. If no function is specified,\r\n\t// it will remove all the listeners of that particular DOM event from the element.\r\n\t// Note that if you passed a custom context to on, you must pass the same\r\n\t// context to `off` in order to remove the listener.\r\n\r\n\t// @alternative\r\n\t// @function off(el: HTMLElement, eventMap: Object, context?: Object): this\r\n\t// Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n\toff: function (obj, types, fn, context) {\r\n\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis._off(obj, type, types[type], fn);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._off(obj, types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_on: function (obj, type, fn, context) {\r\n\t\tvar id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : '');\r\n\r\n\t\tif (obj[eventsKey] && obj[eventsKey][id]) { return this; }\r\n\r\n\t\tvar handler = function (e) {\r\n\t\t\treturn fn.call(context || obj, e || window.event);\r\n\t\t};\r\n\r\n\t\tvar originalHandler = handler;\r\n\r\n\t\tif (L.Browser.pointer && type.indexOf('touch') === 0) {\r\n\t\t\tthis.addPointerListener(obj, type, handler, id);\r\n\r\n\t\t} else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener &&\r\n\t\t           !(L.Browser.pointer && L.Browser.chrome)) {\r\n\t\t\t// Chrome >55 does not need the synthetic dblclicks from addDoubleTapListener\r\n\t\t\t// See #5180\r\n\t\t\tthis.addDoubleTapListener(obj, handler, id);\r\n\r\n\t\t} else if ('addEventListener' in obj) {\r\n\r\n\t\t\tif (type === 'mousewheel') {\r\n\t\t\t\tobj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);\r\n\r\n\t\t\t} else if ((type === 'mouseenter') || (type === 'mouseleave')) {\r\n\t\t\t\thandler = function (e) {\r\n\t\t\t\t\te = e || window.event;\r\n\t\t\t\t\tif (L.DomEvent._isExternalTarget(obj, e)) {\r\n\t\t\t\t\t\toriginalHandler(e);\r\n\t\t\t\t\t}\r\n\t\t\t\t};\r\n\t\t\t\tobj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false);\r\n\r\n\t\t\t} else {\r\n\t\t\t\tif (type === 'click' && L.Browser.android) {\r\n\t\t\t\t\thandler = function (e) {\r\n\t\t\t\t\t\treturn L.DomEvent._filterClick(e, originalHandler);\r\n\t\t\t\t\t};\r\n\t\t\t\t}\r\n\t\t\t\tobj.addEventListener(type, handler, false);\r\n\t\t\t}\r\n\r\n\t\t} else if ('attachEvent' in obj) {\r\n\t\t\tobj.attachEvent('on' + type, handler);\r\n\t\t}\r\n\r\n\t\tobj[eventsKey] = obj[eventsKey] || {};\r\n\t\tobj[eventsKey][id] = handler;\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_off: function (obj, type, fn, context) {\r\n\r\n\t\tvar id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''),\r\n\t\t    handler = obj[eventsKey] && obj[eventsKey][id];\r\n\r\n\t\tif (!handler) { return this; }\r\n\r\n\t\tif (L.Browser.pointer && type.indexOf('touch') === 0) {\r\n\t\t\tthis.removePointerListener(obj, type, id);\r\n\r\n\t\t} else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {\r\n\t\t\tthis.removeDoubleTapListener(obj, id);\r\n\r\n\t\t} else if ('removeEventListener' in obj) {\r\n\r\n\t\t\tif (type === 'mousewheel') {\r\n\t\t\t\tobj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);\r\n\r\n\t\t\t} else {\r\n\t\t\t\tobj.removeEventListener(\r\n\t\t\t\t\ttype === 'mouseenter' ? 'mouseover' :\r\n\t\t\t\t\ttype === 'mouseleave' ? 'mouseout' : type, handler, false);\r\n\t\t\t}\r\n\r\n\t\t} else if ('detachEvent' in obj) {\r\n\t\t\tobj.detachEvent('on' + type, handler);\r\n\t\t}\r\n\r\n\t\tobj[eventsKey][id] = null;\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function stopPropagation(ev: DOMEvent): this\r\n\t// Stop the given event from propagation to parent elements. Used inside the listener functions:\r\n\t// ```js\r\n\t// L.DomEvent.on(div, 'click', function (ev) {\r\n\t// \tL.DomEvent.stopPropagation(ev);\r\n\t// });\r\n\t// ```\r\n\tstopPropagation: function (e) {\r\n\r\n\t\tif (e.stopPropagation) {\r\n\t\t\te.stopPropagation();\r\n\t\t} else if (e.originalEvent) {  // In case of Leaflet event.\r\n\t\t\te.originalEvent._stopped = true;\r\n\t\t} else {\r\n\t\t\te.cancelBubble = true;\r\n\t\t}\r\n\t\tL.DomEvent._skipped(e);\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function disableScrollPropagation(el: HTMLElement): this\r\n\t// Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants).\r\n\tdisableScrollPropagation: function (el) {\r\n\t\treturn L.DomEvent.on(el, 'mousewheel', L.DomEvent.stopPropagation);\r\n\t},\r\n\r\n\t// @function disableClickPropagation(el: HTMLElement): this\r\n\t// Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`,\r\n\t// `'mousedown'` and `'touchstart'` events (plus browser variants).\r\n\tdisableClickPropagation: function (el) {\r\n\t\tvar stop = L.DomEvent.stopPropagation;\r\n\r\n\t\tL.DomEvent.on(el, L.Draggable.START.join(' '), stop);\r\n\r\n\t\treturn L.DomEvent.on(el, {\r\n\t\t\tclick: L.DomEvent._fakeStop,\r\n\t\t\tdblclick: stop\r\n\t\t});\r\n\t},\r\n\r\n\t// @function preventDefault(ev: DOMEvent): this\r\n\t// Prevents the default action of the DOM Event `ev` from happening (such as\r\n\t// following a link in the href of the a element, or doing a POST request\r\n\t// with page reload when a `<form>` is submitted).\r\n\t// Use it inside listener functions.\r\n\tpreventDefault: function (e) {\r\n\r\n\t\tif (e.preventDefault) {\r\n\t\t\te.preventDefault();\r\n\t\t} else {\r\n\t\t\te.returnValue = false;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function stop(ev): this\r\n\t// Does `stopPropagation` and `preventDefault` at the same time.\r\n\tstop: function (e) {\r\n\t\treturn L.DomEvent\r\n\t\t\t.preventDefault(e)\r\n\t\t\t.stopPropagation(e);\r\n\t},\r\n\r\n\t// @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point\r\n\t// Gets normalized mouse position from a DOM event relative to the\r\n\t// `container` or to the whole page if not specified.\r\n\tgetMousePosition: function (e, container) {\r\n\t\tif (!container) {\r\n\t\t\treturn new L.Point(e.clientX, e.clientY);\r\n\t\t}\r\n\r\n\t\tvar rect = container.getBoundingClientRect();\r\n\r\n\t\treturn new L.Point(\r\n\t\t\te.clientX - rect.left - container.clientLeft,\r\n\t\t\te.clientY - rect.top - container.clientTop);\r\n\t},\r\n\r\n\t// Chrome on Win scrolls double the pixels as in other platforms (see #4538),\r\n\t// and Firefox scrolls device pixels, not CSS pixels\r\n\t_wheelPxFactor: (L.Browser.win && L.Browser.chrome) ? 2 :\r\n\t                L.Browser.gecko ? window.devicePixelRatio :\r\n\t                1,\r\n\r\n\t// @function getWheelDelta(ev: DOMEvent): Number\r\n\t// Gets normalized wheel delta from a mousewheel DOM event, in vertical\r\n\t// pixels scrolled (negative if scrolling down).\r\n\t// Events from pointing devices without precise scrolling are mapped to\r\n\t// a best guess of 60 pixels.\r\n\tgetWheelDelta: function (e) {\r\n\t\treturn (L.Browser.edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta\r\n\t\t       (e.deltaY && e.deltaMode === 0) ? -e.deltaY / L.DomEvent._wheelPxFactor : // Pixels\r\n\t\t       (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines\r\n\t\t       (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages\r\n\t\t       (e.deltaX || e.deltaZ) ? 0 :\t// Skip horizontal/depth wheel events\r\n\t\t       e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels\r\n\t\t       (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines\r\n\t\t       e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages\r\n\t\t       0;\r\n\t},\r\n\r\n\t_skipEvents: {},\r\n\r\n\t_fakeStop: function (e) {\r\n\t\t// fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)\r\n\t\tL.DomEvent._skipEvents[e.type] = true;\r\n\t},\r\n\r\n\t_skipped: function (e) {\r\n\t\tvar skipped = this._skipEvents[e.type];\r\n\t\t// reset when checking, as it's only used in map container and propagates outside of the map\r\n\t\tthis._skipEvents[e.type] = false;\r\n\t\treturn skipped;\r\n\t},\r\n\r\n\t// check if element really left/entered the event target (for mouseenter/mouseleave)\r\n\t_isExternalTarget: function (el, e) {\r\n\r\n\t\tvar related = e.relatedTarget;\r\n\r\n\t\tif (!related) { return true; }\r\n\r\n\t\ttry {\r\n\t\t\twhile (related && (related !== el)) {\r\n\t\t\t\trelated = related.parentNode;\r\n\t\t\t}\r\n\t\t} catch (err) {\r\n\t\t\treturn false;\r\n\t\t}\r\n\t\treturn (related !== el);\r\n\t},\r\n\r\n\t// this is a horrible workaround for a bug in Android where a single touch triggers two click events\r\n\t_filterClick: function (e, handler) {\r\n\t\tvar timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)),\r\n\t\t    elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);\r\n\r\n\t\t// are they closer together than 500ms yet more than 100ms?\r\n\t\t// Android typically triggers them ~300ms apart while multiple listeners\r\n\t\t// on the same event should be triggered far faster;\r\n\t\t// or check if click is simulated on the element, and if it is, reject any non-simulated events\r\n\r\n\t\tif ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {\r\n\t\t\tL.DomEvent.stop(e);\r\n\t\t\treturn;\r\n\t\t}\r\n\t\tL.DomEvent._lastClick = timeStamp;\r\n\r\n\t\thandler(e);\r\n\t}\r\n};\r\n\r\n// @function addListener(…): this\r\n// Alias to [`L.DomEvent.on`](#domevent-on)\r\nL.DomEvent.addListener = L.DomEvent.on;\r\n\r\n// @function removeListener(…): this\r\n// Alias to [`L.DomEvent.off`](#domevent-off)\r\nL.DomEvent.removeListener = L.DomEvent.off;\r\n\n\n\n/*\n * @class PosAnimation\n * @aka L.PosAnimation\n * @inherits Evented\n * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9.\n *\n * @example\n * ```js\n * var fx = new L.PosAnimation();\n * fx.run(el, [300, 500], 0.5);\n * ```\n *\n * @constructor L.PosAnimation()\n * Creates a `PosAnimation` object.\n *\n */\n\nL.PosAnimation = L.Evented.extend({\n\n\t// @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number)\n\t// Run an animation of a given element to a new position, optionally setting\n\t// duration in seconds (`0.25` by default) and easing linearity factor (3rd\n\t// argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1),\n\t// `0.5` by default).\n\trun: function (el, newPos, duration, easeLinearity) {\n\t\tthis.stop();\n\n\t\tthis._el = el;\n\t\tthis._inProgress = true;\n\t\tthis._duration = duration || 0.25;\n\t\tthis._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);\n\n\t\tthis._startPos = L.DomUtil.getPosition(el);\n\t\tthis._offset = newPos.subtract(this._startPos);\n\t\tthis._startTime = +new Date();\n\n\t\t// @event start: Event\n\t\t// Fired when the animation starts\n\t\tthis.fire('start');\n\n\t\tthis._animate();\n\t},\n\n\t// @method stop()\n\t// Stops the animation (if currently running).\n\tstop: function () {\n\t\tif (!this._inProgress) { return; }\n\n\t\tthis._step(true);\n\t\tthis._complete();\n\t},\n\n\t_animate: function () {\n\t\t// animation loop\n\t\tthis._animId = L.Util.requestAnimFrame(this._animate, this);\n\t\tthis._step();\n\t},\n\n\t_step: function (round) {\n\t\tvar elapsed = (+new Date()) - this._startTime,\n\t\t    duration = this._duration * 1000;\n\n\t\tif (elapsed < duration) {\n\t\t\tthis._runFrame(this._easeOut(elapsed / duration), round);\n\t\t} else {\n\t\t\tthis._runFrame(1);\n\t\t\tthis._complete();\n\t\t}\n\t},\n\n\t_runFrame: function (progress, round) {\n\t\tvar pos = this._startPos.add(this._offset.multiplyBy(progress));\n\t\tif (round) {\n\t\t\tpos._round();\n\t\t}\n\t\tL.DomUtil.setPosition(this._el, pos);\n\n\t\t// @event step: Event\n\t\t// Fired continuously during the animation.\n\t\tthis.fire('step');\n\t},\n\n\t_complete: function () {\n\t\tL.Util.cancelAnimFrame(this._animId);\n\n\t\tthis._inProgress = false;\n\t\t// @event end: Event\n\t\t// Fired when the animation ends.\n\t\tthis.fire('end');\n\t},\n\n\t_easeOut: function (t) {\n\t\treturn 1 - Math.pow(1 - t, this._easeOutPower);\n\t}\n});\n\n\n\n/*\r\n * @namespace Projection\r\n * @projection L.Projection.Mercator\r\n *\r\n * Elliptical Mercator projection — more complex than Spherical Mercator. Takes into account that Earth is a geoid, not a perfect sphere. Used by the EPSG:3395 CRS.\r\n */\r\n\r\nL.Projection.Mercator = {\r\n\tR: 6378137,\r\n\tR_MINOR: 6356752.314245179,\r\n\r\n\tbounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),\r\n\r\n\tproject: function (latlng) {\r\n\t\tvar d = Math.PI / 180,\r\n\t\t    r = this.R,\r\n\t\t    y = latlng.lat * d,\r\n\t\t    tmp = this.R_MINOR / r,\r\n\t\t    e = Math.sqrt(1 - tmp * tmp),\r\n\t\t    con = e * Math.sin(y);\r\n\r\n\t\tvar ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2);\r\n\t\ty = -r * Math.log(Math.max(ts, 1E-10));\r\n\r\n\t\treturn new L.Point(latlng.lng * d * r, y);\r\n\t},\r\n\r\n\tunproject: function (point) {\r\n\t\tvar d = 180 / Math.PI,\r\n\t\t    r = this.R,\r\n\t\t    tmp = this.R_MINOR / r,\r\n\t\t    e = Math.sqrt(1 - tmp * tmp),\r\n\t\t    ts = Math.exp(-point.y / r),\r\n\t\t    phi = Math.PI / 2 - 2 * Math.atan(ts);\r\n\r\n\t\tfor (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) {\r\n\t\t\tcon = e * Math.sin(phi);\r\n\t\t\tcon = Math.pow((1 - con) / (1 + con), e / 2);\r\n\t\t\tdphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi;\r\n\t\t\tphi += dphi;\r\n\t\t}\r\n\r\n\t\treturn new L.LatLng(phi * d, point.x * d / r);\r\n\t}\r\n};\r\n\n\n\n/*\r\n * @namespace CRS\r\n * @crs L.CRS.EPSG3395\r\n *\r\n * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection.\r\n */\r\n\r\nL.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, {\r\n\tcode: 'EPSG:3395',\r\n\tprojection: L.Projection.Mercator,\r\n\r\n\ttransformation: (function () {\r\n\t\tvar scale = 0.5 / (Math.PI * L.Projection.Mercator.R);\r\n\t\treturn new L.Transformation(scale, 0.5, -scale, 0.5);\r\n\t}())\r\n});\r\n\n\n\n/*\n * @class GridLayer\n * @inherits Layer\n * @aka L.GridLayer\n *\n * Generic class for handling a tiled grid of HTML elements. This is the base class for all tile layers and replaces `TileLayer.Canvas`.\n * GridLayer can be extended to create a tiled grid of HTML elements like `<canvas>`, `<img>` or `<div>`. GridLayer will handle creating and animating these DOM elements for you.\n *\n *\n * @section Synchronous usage\n * @example\n *\n * To create a custom layer, extend GridLayer and implement the `createTile()` method, which will be passed a `Point` object with the `x`, `y`, and `z` (zoom level) coordinates to draw your tile.\n *\n * ```js\n * var CanvasLayer = L.GridLayer.extend({\n *     createTile: function(coords){\n *         // create a <canvas> element for drawing\n *         var tile = L.DomUtil.create('canvas', 'leaflet-tile');\n *\n *         // setup tile width and height according to the options\n *         var size = this.getTileSize();\n *         tile.width = size.x;\n *         tile.height = size.y;\n *\n *         // get a canvas context and draw something on it using coords.x, coords.y and coords.z\n *         var ctx = tile.getContext('2d');\n *\n *         // return the tile so it can be rendered on screen\n *         return tile;\n *     }\n * });\n * ```\n *\n * @section Asynchronous usage\n * @example\n *\n * Tile creation can also be asynchronous, this is useful when using a third-party drawing library. Once the tile is finished drawing it can be passed to the `done()` callback.\n *\n * ```js\n * var CanvasLayer = L.GridLayer.extend({\n *     createTile: function(coords, done){\n *         var error;\n *\n *         // create a <canvas> element for drawing\n *         var tile = L.DomUtil.create('canvas', 'leaflet-tile');\n *\n *         // setup tile width and height according to the options\n *         var size = this.getTileSize();\n *         tile.width = size.x;\n *         tile.height = size.y;\n *\n *         // draw something asynchronously and pass the tile to the done() callback\n *         setTimeout(function() {\n *             done(error, tile);\n *         }, 1000);\n *\n *         return tile;\n *     }\n * });\n * ```\n *\n * @section\n */\n\n\nL.GridLayer = L.Layer.extend({\n\n\t// @section\n\t// @aka GridLayer options\n\toptions: {\n\t\t// @option tileSize: Number|Point = 256\n\t\t// Width and height of tiles in the grid. Use a number if width and height are equal, or `L.point(width, height)` otherwise.\n\t\ttileSize: 256,\n\n\t\t// @option opacity: Number = 1.0\n\t\t// Opacity of the tiles. Can be used in the `createTile()` function.\n\t\topacity: 1,\n\n\t\t// @option updateWhenIdle: Boolean = depends\n\t\t// If `false`, new tiles are loaded during panning, otherwise only after it (for better performance). `true` by default on mobile browsers, otherwise `false`.\n\t\tupdateWhenIdle: L.Browser.mobile,\n\n\t\t// @option updateWhenZooming: Boolean = true\n\t\t// By default, a smooth zoom animation (during a [touch zoom](#map-touchzoom) or a [`flyTo()`](#map-flyto)) will update grid layers every integer zoom level. Setting this option to `false` will update the grid layer only when the smooth animation ends.\n\t\tupdateWhenZooming: true,\n\n\t\t// @option updateInterval: Number = 200\n\t\t// Tiles will not update more than once every `updateInterval` milliseconds when panning.\n\t\tupdateInterval: 200,\n\n\t\t// @option zIndex: Number = 1\n\t\t// The explicit zIndex of the tile layer.\n\t\tzIndex: 1,\n\n\t\t// @option bounds: LatLngBounds = undefined\n\t\t// If set, tiles will only be loaded inside the set `LatLngBounds`.\n\t\tbounds: null,\n\n\t\t// @option minZoom: Number = 0\n\t\t// The minimum zoom level that tiles will be loaded at. By default the entire map.\n\t\tminZoom: 0,\n\n\t\t// @option maxZoom: Number = undefined\n\t\t// The maximum zoom level that tiles will be loaded at.\n\t\tmaxZoom: undefined,\n\n\t\t// @option noWrap: Boolean = false\n\t\t// Whether the layer is wrapped around the antimeridian. If `true`, the\n\t\t// GridLayer will only be displayed once at low zoom levels. Has no\n\t\t// effect when the [map CRS](#map-crs) doesn't wrap around. Can be used\n\t\t// in combination with [`bounds`](#gridlayer-bounds) to prevent requesting\n\t\t// tiles outside the CRS limits.\n\t\tnoWrap: false,\n\n\t\t// @option pane: String = 'tilePane'\n\t\t// `Map pane` where the grid layer will be added.\n\t\tpane: 'tilePane',\n\n\t\t// @option className: String = ''\n\t\t// A custom class name to assign to the tile layer. Empty by default.\n\t\tclassName: '',\n\n\t\t// @option keepBuffer: Number = 2\n\t\t// When panning the map, keep this many rows and columns of tiles before unloading them.\n\t\tkeepBuffer: 2\n\t},\n\n\tinitialize: function (options) {\n\t\tL.setOptions(this, options);\n\t},\n\n\tonAdd: function () {\n\t\tthis._initContainer();\n\n\t\tthis._levels = {};\n\t\tthis._tiles = {};\n\n\t\tthis._resetView();\n\t\tthis._update();\n\t},\n\n\tbeforeAdd: function (map) {\n\t\tmap._addZoomLimit(this);\n\t},\n\n\tonRemove: function (map) {\n\t\tthis._removeAllTiles();\n\t\tL.DomUtil.remove(this._container);\n\t\tmap._removeZoomLimit(this);\n\t\tthis._container = null;\n\t\tthis._tileZoom = null;\n\t},\n\n\t// @method bringToFront: this\n\t// Brings the tile layer to the top of all tile layers.\n\tbringToFront: function () {\n\t\tif (this._map) {\n\t\t\tL.DomUtil.toFront(this._container);\n\t\t\tthis._setAutoZIndex(Math.max);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method bringToBack: this\n\t// Brings the tile layer to the bottom of all tile layers.\n\tbringToBack: function () {\n\t\tif (this._map) {\n\t\t\tL.DomUtil.toBack(this._container);\n\t\t\tthis._setAutoZIndex(Math.min);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method getContainer: HTMLElement\n\t// Returns the HTML element that contains the tiles for this layer.\n\tgetContainer: function () {\n\t\treturn this._container;\n\t},\n\n\t// @method setOpacity(opacity: Number): this\n\t// Changes the [opacity](#gridlayer-opacity) of the grid layer.\n\tsetOpacity: function (opacity) {\n\t\tthis.options.opacity = opacity;\n\t\tthis._updateOpacity();\n\t\treturn this;\n\t},\n\n\t// @method setZIndex(zIndex: Number): this\n\t// Changes the [zIndex](#gridlayer-zindex) of the grid layer.\n\tsetZIndex: function (zIndex) {\n\t\tthis.options.zIndex = zIndex;\n\t\tthis._updateZIndex();\n\n\t\treturn this;\n\t},\n\n\t// @method isLoading: Boolean\n\t// Returns `true` if any tile in the grid layer has not finished loading.\n\tisLoading: function () {\n\t\treturn this._loading;\n\t},\n\n\t// @method redraw: this\n\t// Causes the layer to clear all the tiles and request them again.\n\tredraw: function () {\n\t\tif (this._map) {\n\t\t\tthis._removeAllTiles();\n\t\t\tthis._update();\n\t\t}\n\t\treturn this;\n\t},\n\n\tgetEvents: function () {\n\t\tvar events = {\n\t\t\tviewprereset: this._invalidateAll,\n\t\t\tviewreset: this._resetView,\n\t\t\tzoom: this._resetView,\n\t\t\tmoveend: this._onMoveEnd\n\t\t};\n\n\t\tif (!this.options.updateWhenIdle) {\n\t\t\t// update tiles on move, but not more often than once per given interval\n\t\t\tif (!this._onMove) {\n\t\t\t\tthis._onMove = L.Util.throttle(this._onMoveEnd, this.options.updateInterval, this);\n\t\t\t}\n\n\t\t\tevents.move = this._onMove;\n\t\t}\n\n\t\tif (this._zoomAnimated) {\n\t\t\tevents.zoomanim = this._animateZoom;\n\t\t}\n\n\t\treturn events;\n\t},\n\n\t// @section Extension methods\n\t// Layers extending `GridLayer` shall reimplement the following method.\n\t// @method createTile(coords: Object, done?: Function): HTMLElement\n\t// Called only internally, must be overriden by classes extending `GridLayer`.\n\t// Returns the `HTMLElement` corresponding to the given `coords`. If the `done` callback\n\t// is specified, it must be called when the tile has finished loading and drawing.\n\tcreateTile: function () {\n\t\treturn document.createElement('div');\n\t},\n\n\t// @section\n\t// @method getTileSize: Point\n\t// Normalizes the [tileSize option](#gridlayer-tilesize) into a point. Used by the `createTile()` method.\n\tgetTileSize: function () {\n\t\tvar s = this.options.tileSize;\n\t\treturn s instanceof L.Point ? s : new L.Point(s, s);\n\t},\n\n\t_updateZIndex: function () {\n\t\tif (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) {\n\t\t\tthis._container.style.zIndex = this.options.zIndex;\n\t\t}\n\t},\n\n\t_setAutoZIndex: function (compare) {\n\t\t// go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)\n\n\t\tvar layers = this.getPane().children,\n\t\t    edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min\n\n\t\tfor (var i = 0, len = layers.length, zIndex; i < len; i++) {\n\n\t\t\tzIndex = layers[i].style.zIndex;\n\n\t\t\tif (layers[i] !== this._container && zIndex) {\n\t\t\t\tedgeZIndex = compare(edgeZIndex, +zIndex);\n\t\t\t}\n\t\t}\n\n\t\tif (isFinite(edgeZIndex)) {\n\t\t\tthis.options.zIndex = edgeZIndex + compare(-1, 1);\n\t\t\tthis._updateZIndex();\n\t\t}\n\t},\n\n\t_updateOpacity: function () {\n\t\tif (!this._map) { return; }\n\n\t\t// IE doesn't inherit filter opacity properly, so we're forced to set it on tiles\n\t\tif (L.Browser.ielt9) { return; }\n\n\t\tL.DomUtil.setOpacity(this._container, this.options.opacity);\n\n\t\tvar now = +new Date(),\n\t\t    nextFrame = false,\n\t\t    willPrune = false;\n\n\t\tfor (var key in this._tiles) {\n\t\t\tvar tile = this._tiles[key];\n\t\t\tif (!tile.current || !tile.loaded) { continue; }\n\n\t\t\tvar fade = Math.min(1, (now - tile.loaded) / 200);\n\n\t\t\tL.DomUtil.setOpacity(tile.el, fade);\n\t\t\tif (fade < 1) {\n\t\t\t\tnextFrame = true;\n\t\t\t} else {\n\t\t\t\tif (tile.active) { willPrune = true; }\n\t\t\t\ttile.active = true;\n\t\t\t}\n\t\t}\n\n\t\tif (willPrune && !this._noPrune) { this._pruneTiles(); }\n\n\t\tif (nextFrame) {\n\t\t\tL.Util.cancelAnimFrame(this._fadeFrame);\n\t\t\tthis._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);\n\t\t}\n\t},\n\n\t_initContainer: function () {\n\t\tif (this._container) { return; }\n\n\t\tthis._container = L.DomUtil.create('div', 'leaflet-layer ' + (this.options.className || ''));\n\t\tthis._updateZIndex();\n\n\t\tif (this.options.opacity < 1) {\n\t\t\tthis._updateOpacity();\n\t\t}\n\n\t\tthis.getPane().appendChild(this._container);\n\t},\n\n\t_updateLevels: function () {\n\n\t\tvar zoom = this._tileZoom,\n\t\t    maxZoom = this.options.maxZoom;\n\n\t\tif (zoom === undefined) { return undefined; }\n\n\t\tfor (var z in this._levels) {\n\t\t\tif (this._levels[z].el.children.length || z === zoom) {\n\t\t\t\tthis._levels[z].el.style.zIndex = maxZoom - Math.abs(zoom - z);\n\t\t\t} else {\n\t\t\t\tL.DomUtil.remove(this._levels[z].el);\n\t\t\t\tthis._removeTilesAtZoom(z);\n\t\t\t\tdelete this._levels[z];\n\t\t\t}\n\t\t}\n\n\t\tvar level = this._levels[zoom],\n\t\t    map = this._map;\n\n\t\tif (!level) {\n\t\t\tlevel = this._levels[zoom] = {};\n\n\t\t\tlevel.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);\n\t\t\tlevel.el.style.zIndex = maxZoom;\n\n\t\t\tlevel.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();\n\t\t\tlevel.zoom = zoom;\n\n\t\t\tthis._setZoomTransform(level, map.getCenter(), map.getZoom());\n\n\t\t\t// force the browser to consider the newly added element for transition\n\t\t\tL.Util.falseFn(level.el.offsetWidth);\n\t\t}\n\n\t\tthis._level = level;\n\n\t\treturn level;\n\t},\n\n\t_pruneTiles: function () {\n\t\tif (!this._map) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar key, tile;\n\n\t\tvar zoom = this._map.getZoom();\n\t\tif (zoom > this.options.maxZoom ||\n\t\t\tzoom < this.options.minZoom) {\n\t\t\tthis._removeAllTiles();\n\t\t\treturn;\n\t\t}\n\n\t\tfor (key in this._tiles) {\n\t\t\ttile = this._tiles[key];\n\t\t\ttile.retain = tile.current;\n\t\t}\n\n\t\tfor (key in this._tiles) {\n\t\t\ttile = this._tiles[key];\n\t\t\tif (tile.current && !tile.active) {\n\t\t\t\tvar coords = tile.coords;\n\t\t\t\tif (!this._retainParent(coords.x, coords.y, coords.z, coords.z - 5)) {\n\t\t\t\t\tthis._retainChildren(coords.x, coords.y, coords.z, coords.z + 2);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor (key in this._tiles) {\n\t\t\tif (!this._tiles[key].retain) {\n\t\t\t\tthis._removeTile(key);\n\t\t\t}\n\t\t}\n\t},\n\n\t_removeTilesAtZoom: function (zoom) {\n\t\tfor (var key in this._tiles) {\n\t\t\tif (this._tiles[key].coords.z !== zoom) {\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tthis._removeTile(key);\n\t\t}\n\t},\n\n\t_removeAllTiles: function () {\n\t\tfor (var key in this._tiles) {\n\t\t\tthis._removeTile(key);\n\t\t}\n\t},\n\n\t_invalidateAll: function () {\n\t\tfor (var z in this._levels) {\n\t\t\tL.DomUtil.remove(this._levels[z].el);\n\t\t\tdelete this._levels[z];\n\t\t}\n\t\tthis._removeAllTiles();\n\n\t\tthis._tileZoom = null;\n\t},\n\n\t_retainParent: function (x, y, z, minZoom) {\n\t\tvar x2 = Math.floor(x / 2),\n\t\t    y2 = Math.floor(y / 2),\n\t\t    z2 = z - 1,\n\t\t    coords2 = new L.Point(+x2, +y2);\n\t\tcoords2.z = +z2;\n\n\t\tvar key = this._tileCoordsToKey(coords2),\n\t\t    tile = this._tiles[key];\n\n\t\tif (tile && tile.active) {\n\t\t\ttile.retain = true;\n\t\t\treturn true;\n\n\t\t} else if (tile && tile.loaded) {\n\t\t\ttile.retain = true;\n\t\t}\n\n\t\tif (z2 > minZoom) {\n\t\t\treturn this._retainParent(x2, y2, z2, minZoom);\n\t\t}\n\n\t\treturn false;\n\t},\n\n\t_retainChildren: function (x, y, z, maxZoom) {\n\n\t\tfor (var i = 2 * x; i < 2 * x + 2; i++) {\n\t\t\tfor (var j = 2 * y; j < 2 * y + 2; j++) {\n\n\t\t\t\tvar coords = new L.Point(i, j);\n\t\t\t\tcoords.z = z + 1;\n\n\t\t\t\tvar key = this._tileCoordsToKey(coords),\n\t\t\t\t    tile = this._tiles[key];\n\n\t\t\t\tif (tile && tile.active) {\n\t\t\t\t\ttile.retain = true;\n\t\t\t\t\tcontinue;\n\n\t\t\t\t} else if (tile && tile.loaded) {\n\t\t\t\t\ttile.retain = true;\n\t\t\t\t}\n\n\t\t\t\tif (z + 1 < maxZoom) {\n\t\t\t\t\tthis._retainChildren(i, j, z + 1, maxZoom);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t_resetView: function (e) {\n\t\tvar animating = e && (e.pinch || e.flyTo);\n\t\tthis._setView(this._map.getCenter(), this._map.getZoom(), animating, animating);\n\t},\n\n\t_animateZoom: function (e) {\n\t\tthis._setView(e.center, e.zoom, true, e.noUpdate);\n\t},\n\n\t_setView: function (center, zoom, noPrune, noUpdate) {\n\t\tvar tileZoom = Math.round(zoom);\n\t\tif ((this.options.maxZoom !== undefined && tileZoom > this.options.maxZoom) ||\n\t\t    (this.options.minZoom !== undefined && tileZoom < this.options.minZoom)) {\n\t\t\ttileZoom = undefined;\n\t\t}\n\n\t\tvar tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom);\n\n\t\tif (!noUpdate || tileZoomChanged) {\n\n\t\t\tthis._tileZoom = tileZoom;\n\n\t\t\tif (this._abortLoading) {\n\t\t\t\tthis._abortLoading();\n\t\t\t}\n\n\t\t\tthis._updateLevels();\n\t\t\tthis._resetGrid();\n\n\t\t\tif (tileZoom !== undefined) {\n\t\t\t\tthis._update(center);\n\t\t\t}\n\n\t\t\tif (!noPrune) {\n\t\t\t\tthis._pruneTiles();\n\t\t\t}\n\n\t\t\t// Flag to prevent _updateOpacity from pruning tiles during\n\t\t\t// a zoom anim or a pinch gesture\n\t\t\tthis._noPrune = !!noPrune;\n\t\t}\n\n\t\tthis._setZoomTransforms(center, zoom);\n\t},\n\n\t_setZoomTransforms: function (center, zoom) {\n\t\tfor (var i in this._levels) {\n\t\t\tthis._setZoomTransform(this._levels[i], center, zoom);\n\t\t}\n\t},\n\n\t_setZoomTransform: function (level, center, zoom) {\n\t\tvar scale = this._map.getZoomScale(zoom, level.zoom),\n\t\t    translate = level.origin.multiplyBy(scale)\n\t\t        .subtract(this._map._getNewPixelOrigin(center, zoom)).round();\n\n\t\tif (L.Browser.any3d) {\n\t\t\tL.DomUtil.setTransform(level.el, translate, scale);\n\t\t} else {\n\t\t\tL.DomUtil.setPosition(level.el, translate);\n\t\t}\n\t},\n\n\t_resetGrid: function () {\n\t\tvar map = this._map,\n\t\t    crs = map.options.crs,\n\t\t    tileSize = this._tileSize = this.getTileSize(),\n\t\t    tileZoom = this._tileZoom;\n\n\t\tvar bounds = this._map.getPixelWorldBounds(this._tileZoom);\n\t\tif (bounds) {\n\t\t\tthis._globalTileRange = this._pxBoundsToTileRange(bounds);\n\t\t}\n\n\t\tthis._wrapX = crs.wrapLng && !this.options.noWrap && [\n\t\t\tMath.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize.x),\n\t\t\tMath.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize.y)\n\t\t];\n\t\tthis._wrapY = crs.wrapLat && !this.options.noWrap && [\n\t\t\tMath.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize.x),\n\t\t\tMath.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize.y)\n\t\t];\n\t},\n\n\t_onMoveEnd: function () {\n\t\tif (!this._map || this._map._animatingZoom) { return; }\n\n\t\tthis._update();\n\t},\n\n\t_getTiledPixelBounds: function (center) {\n\t\tvar map = this._map,\n\t\t    mapZoom = map._animatingZoom ? Math.max(map._animateToZoom, map.getZoom()) : map.getZoom(),\n\t\t    scale = map.getZoomScale(mapZoom, this._tileZoom),\n\t\t    pixelCenter = map.project(center, this._tileZoom).floor(),\n\t\t    halfSize = map.getSize().divideBy(scale * 2);\n\n\t\treturn new L.Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize));\n\t},\n\n\t// Private method to load tiles in the grid's active zoom level according to map bounds\n\t_update: function (center) {\n\t\tvar map = this._map;\n\t\tif (!map) { return; }\n\t\tvar zoom = map.getZoom();\n\n\t\tif (center === undefined) { center = map.getCenter(); }\n\t\tif (this._tileZoom === undefined) { return; }\t// if out of minzoom/maxzoom\n\n\t\tvar pixelBounds = this._getTiledPixelBounds(center),\n\t\t    tileRange = this._pxBoundsToTileRange(pixelBounds),\n\t\t    tileCenter = tileRange.getCenter(),\n\t\t    queue = [],\n\t\t    margin = this.options.keepBuffer,\n\t\t    noPruneRange = new L.Bounds(tileRange.getBottomLeft().subtract([margin, -margin]),\n\t\t                              tileRange.getTopRight().add([margin, -margin]));\n\n\t\tfor (var key in this._tiles) {\n\t\t\tvar c = this._tiles[key].coords;\n\t\t\tif (c.z !== this._tileZoom || !noPruneRange.contains(L.point(c.x, c.y))) {\n\t\t\t\tthis._tiles[key].current = false;\n\t\t\t}\n\t\t}\n\n\t\t// _update just loads more tiles. If the tile zoom level differs too much\n\t\t// from the map's, let _setView reset levels and prune old tiles.\n\t\tif (Math.abs(zoom - this._tileZoom) > 1) { this._setView(center, zoom); return; }\n\n\t\t// create a queue of coordinates to load tiles from\n\t\tfor (var j = tileRange.min.y; j <= tileRange.max.y; j++) {\n\t\t\tfor (var i = tileRange.min.x; i <= tileRange.max.x; i++) {\n\t\t\t\tvar coords = new L.Point(i, j);\n\t\t\t\tcoords.z = this._tileZoom;\n\n\t\t\t\tif (!this._isValidTile(coords)) { continue; }\n\n\t\t\t\tvar tile = this._tiles[this._tileCoordsToKey(coords)];\n\t\t\t\tif (tile) {\n\t\t\t\t\ttile.current = true;\n\t\t\t\t} else {\n\t\t\t\t\tqueue.push(coords);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// sort tile queue to load tiles in order of their distance to center\n\t\tqueue.sort(function (a, b) {\n\t\t\treturn a.distanceTo(tileCenter) - b.distanceTo(tileCenter);\n\t\t});\n\n\t\tif (queue.length !== 0) {\n\t\t\t// if it's the first batch of tiles to load\n\t\t\tif (!this._loading) {\n\t\t\t\tthis._loading = true;\n\t\t\t\t// @event loading: Event\n\t\t\t\t// Fired when the grid layer starts loading tiles.\n\t\t\t\tthis.fire('loading');\n\t\t\t}\n\n\t\t\t// create DOM fragment to append tiles in one batch\n\t\t\tvar fragment = document.createDocumentFragment();\n\n\t\t\tfor (i = 0; i < queue.length; i++) {\n\t\t\t\tthis._addTile(queue[i], fragment);\n\t\t\t}\n\n\t\t\tthis._level.el.appendChild(fragment);\n\t\t}\n\t},\n\n\t_isValidTile: function (coords) {\n\t\tvar crs = this._map.options.crs;\n\n\t\tif (!crs.infinite) {\n\t\t\t// don't load tile if it's out of bounds and not wrapped\n\t\t\tvar bounds = this._globalTileRange;\n\t\t\tif ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) ||\n\t\t\t    (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; }\n\t\t}\n\n\t\tif (!this.options.bounds) { return true; }\n\n\t\t// don't load tile if it doesn't intersect the bounds in options\n\t\tvar tileBounds = this._tileCoordsToBounds(coords);\n\t\treturn L.latLngBounds(this.options.bounds).overlaps(tileBounds);\n\t},\n\n\t_keyToBounds: function (key) {\n\t\treturn this._tileCoordsToBounds(this._keyToTileCoords(key));\n\t},\n\n\t// converts tile coordinates to its geographical bounds\n\t_tileCoordsToBounds: function (coords) {\n\n\t\tvar map = this._map,\n\t\t    tileSize = this.getTileSize(),\n\n\t\t    nwPoint = coords.scaleBy(tileSize),\n\t\t    sePoint = nwPoint.add(tileSize),\n\n\t\t    nw = map.unproject(nwPoint, coords.z),\n\t\t    se = map.unproject(sePoint, coords.z),\n\t\t    bounds = new L.LatLngBounds(nw, se);\n\n\t\tif (!this.options.noWrap) {\n\t\t\tmap.wrapLatLngBounds(bounds);\n\t\t}\n\n\t\treturn bounds;\n\t},\n\n\t// converts tile coordinates to key for the tile cache\n\t_tileCoordsToKey: function (coords) {\n\t\treturn coords.x + ':' + coords.y + ':' + coords.z;\n\t},\n\n\t// converts tile cache key to coordinates\n\t_keyToTileCoords: function (key) {\n\t\tvar k = key.split(':'),\n\t\t    coords = new L.Point(+k[0], +k[1]);\n\t\tcoords.z = +k[2];\n\t\treturn coords;\n\t},\n\n\t_removeTile: function (key) {\n\t\tvar tile = this._tiles[key];\n\t\tif (!tile) { return; }\n\n\t\tL.DomUtil.remove(tile.el);\n\n\t\tdelete this._tiles[key];\n\n\t\t// @event tileunload: TileEvent\n\t\t// Fired when a tile is removed (e.g. when a tile goes off the screen).\n\t\tthis.fire('tileunload', {\n\t\t\ttile: tile.el,\n\t\t\tcoords: this._keyToTileCoords(key)\n\t\t});\n\t},\n\n\t_initTile: function (tile) {\n\t\tL.DomUtil.addClass(tile, 'leaflet-tile');\n\n\t\tvar tileSize = this.getTileSize();\n\t\ttile.style.width = tileSize.x + 'px';\n\t\ttile.style.height = tileSize.y + 'px';\n\n\t\ttile.onselectstart = L.Util.falseFn;\n\t\ttile.onmousemove = L.Util.falseFn;\n\n\t\t// update opacity on tiles in IE7-8 because of filter inheritance problems\n\t\tif (L.Browser.ielt9 && this.options.opacity < 1) {\n\t\t\tL.DomUtil.setOpacity(tile, this.options.opacity);\n\t\t}\n\n\t\t// without this hack, tiles disappear after zoom on Chrome for Android\n\t\t// https://github.com/Leaflet/Leaflet/issues/2078\n\t\tif (L.Browser.android && !L.Browser.android23) {\n\t\t\ttile.style.WebkitBackfaceVisibility = 'hidden';\n\t\t}\n\t},\n\n\t_addTile: function (coords, container) {\n\t\tvar tilePos = this._getTilePos(coords),\n\t\t    key = this._tileCoordsToKey(coords);\n\n\t\tvar tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords));\n\n\t\tthis._initTile(tile);\n\n\t\t// if createTile is defined with a second argument (\"done\" callback),\n\t\t// we know that tile is async and will be ready later; otherwise\n\t\tif (this.createTile.length < 2) {\n\t\t\t// mark tile as ready, but delay one frame for opacity animation to happen\n\t\t\tL.Util.requestAnimFrame(L.bind(this._tileReady, this, coords, null, tile));\n\t\t}\n\n\t\tL.DomUtil.setPosition(tile, tilePos);\n\n\t\t// save tile in cache\n\t\tthis._tiles[key] = {\n\t\t\tel: tile,\n\t\t\tcoords: coords,\n\t\t\tcurrent: true\n\t\t};\n\n\t\tcontainer.appendChild(tile);\n\t\t// @event tileloadstart: TileEvent\n\t\t// Fired when a tile is requested and starts loading.\n\t\tthis.fire('tileloadstart', {\n\t\t\ttile: tile,\n\t\t\tcoords: coords\n\t\t});\n\t},\n\n\t_tileReady: function (coords, err, tile) {\n\t\tif (!this._map) { return; }\n\n\t\tif (err) {\n\t\t\t// @event tileerror: TileErrorEvent\n\t\t\t// Fired when there is an error loading a tile.\n\t\t\tthis.fire('tileerror', {\n\t\t\t\terror: err,\n\t\t\t\ttile: tile,\n\t\t\t\tcoords: coords\n\t\t\t});\n\t\t}\n\n\t\tvar key = this._tileCoordsToKey(coords);\n\n\t\ttile = this._tiles[key];\n\t\tif (!tile) { return; }\n\n\t\ttile.loaded = +new Date();\n\t\tif (this._map._fadeAnimated) {\n\t\t\tL.DomUtil.setOpacity(tile.el, 0);\n\t\t\tL.Util.cancelAnimFrame(this._fadeFrame);\n\t\t\tthis._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);\n\t\t} else {\n\t\t\ttile.active = true;\n\t\t\tthis._pruneTiles();\n\t\t}\n\n\t\tif (!err) {\n\t\t\tL.DomUtil.addClass(tile.el, 'leaflet-tile-loaded');\n\n\t\t\t// @event tileload: TileEvent\n\t\t\t// Fired when a tile loads.\n\t\t\tthis.fire('tileload', {\n\t\t\t\ttile: tile.el,\n\t\t\t\tcoords: coords\n\t\t\t});\n\t\t}\n\n\t\tif (this._noTilesToLoad()) {\n\t\t\tthis._loading = false;\n\t\t\t// @event load: Event\n\t\t\t// Fired when the grid layer loaded all visible tiles.\n\t\t\tthis.fire('load');\n\n\t\t\tif (L.Browser.ielt9 || !this._map._fadeAnimated) {\n\t\t\t\tL.Util.requestAnimFrame(this._pruneTiles, this);\n\t\t\t} else {\n\t\t\t\t// Wait a bit more than 0.2 secs (the duration of the tile fade-in)\n\t\t\t\t// to trigger a pruning.\n\t\t\t\tsetTimeout(L.bind(this._pruneTiles, this), 250);\n\t\t\t}\n\t\t}\n\t},\n\n\t_getTilePos: function (coords) {\n\t\treturn coords.scaleBy(this.getTileSize()).subtract(this._level.origin);\n\t},\n\n\t_wrapCoords: function (coords) {\n\t\tvar newCoords = new L.Point(\n\t\t\tthis._wrapX ? L.Util.wrapNum(coords.x, this._wrapX) : coords.x,\n\t\t\tthis._wrapY ? L.Util.wrapNum(coords.y, this._wrapY) : coords.y);\n\t\tnewCoords.z = coords.z;\n\t\treturn newCoords;\n\t},\n\n\t_pxBoundsToTileRange: function (bounds) {\n\t\tvar tileSize = this.getTileSize();\n\t\treturn new L.Bounds(\n\t\t\tbounds.min.unscaleBy(tileSize).floor(),\n\t\t\tbounds.max.unscaleBy(tileSize).ceil().subtract([1, 1]));\n\t},\n\n\t_noTilesToLoad: function () {\n\t\tfor (var key in this._tiles) {\n\t\t\tif (!this._tiles[key].loaded) { return false; }\n\t\t}\n\t\treturn true;\n\t}\n});\n\n// @factory L.gridLayer(options?: GridLayer options)\n// Creates a new instance of GridLayer with the supplied options.\nL.gridLayer = function (options) {\n\treturn new L.GridLayer(options);\n};\n\n\n\n/*\r\n * @class TileLayer\r\n * @inherits GridLayer\r\n * @aka L.TileLayer\r\n * Used to load and display tile layers on the map. Extends `GridLayer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png?{foo}', {foo: 'bar'}).addTo(map);\r\n * ```\r\n *\r\n * @section URL template\r\n * @example\r\n *\r\n * A string of the following form:\r\n *\r\n * ```\r\n * 'http://{s}.somedomain.com/blabla/{z}/{x}/{y}{r}.png'\r\n * ```\r\n *\r\n * `{s}` means one of the available subdomains (used sequentially to help with browser parallel requests per domain limitation; subdomain values are specified in options; `a`, `b` or `c` by default, can be omitted), `{z}` — zoom level, `{x}` and `{y}` — tile coordinates. `{r}` can be used to add @2x to the URL to load retina tiles.\r\n *\r\n * You can use custom keys in the template, which will be [evaluated](#util-template) from TileLayer options, like this:\r\n *\r\n * ```\r\n * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'});\r\n * ```\r\n */\r\n\r\n\r\nL.TileLayer = L.GridLayer.extend({\r\n\r\n\t// @section\r\n\t// @aka TileLayer options\r\n\toptions: {\r\n\t\t// @option minZoom: Number = 0\r\n\t\t// Minimum zoom number.\r\n\t\tminZoom: 0,\r\n\r\n\t\t// @option maxZoom: Number = 18\r\n\t\t// Maximum zoom number.\r\n\t\tmaxZoom: 18,\r\n\r\n\t\t// @option maxNativeZoom: Number = null\r\n\t\t// Maximum zoom number the tile source has available. If it is specified,\r\n\t\t// the tiles on all zoom levels higher than `maxNativeZoom` will be loaded\r\n\t\t// from `maxNativeZoom` level and auto-scaled.\r\n\t\tmaxNativeZoom: null,\r\n\r\n\t\t// @option minNativeZoom: Number = null\r\n\t\t// Minimum zoom number the tile source has available. If it is specified,\r\n\t\t// the tiles on all zoom levels lower than `minNativeZoom` will be loaded\r\n\t\t// from `minNativeZoom` level and auto-scaled.\r\n\t\tminNativeZoom: null,\r\n\r\n\t\t// @option subdomains: String|String[] = 'abc'\r\n\t\t// Subdomains of the tile service. Can be passed in the form of one string (where each letter is a subdomain name) or an array of strings.\r\n\t\tsubdomains: 'abc',\r\n\r\n\t\t// @option errorTileUrl: String = ''\r\n\t\t// URL to the tile image to show in place of the tile that failed to load.\r\n\t\terrorTileUrl: '',\r\n\r\n\t\t// @option zoomOffset: Number = 0\r\n\t\t// The zoom number used in tile URLs will be offset with this value.\r\n\t\tzoomOffset: 0,\r\n\r\n\t\t// @option tms: Boolean = false\r\n\t\t// If `true`, inverses Y axis numbering for tiles (turn this on for [TMS](https://en.wikipedia.org/wiki/Tile_Map_Service) services).\r\n\t\ttms: false,\r\n\r\n\t\t// @option zoomReverse: Boolean = false\r\n\t\t// If set to true, the zoom number used in tile URLs will be reversed (`maxZoom - zoom` instead of `zoom`)\r\n\t\tzoomReverse: false,\r\n\r\n\t\t// @option detectRetina: Boolean = false\r\n\t\t// If `true` and user is on a retina display, it will request four tiles of half the specified size and a bigger zoom level in place of one to utilize the high resolution.\r\n\t\tdetectRetina: false,\r\n\r\n\t\t// @option crossOrigin: Boolean = false\r\n\t\t// If true, all tiles will have their crossOrigin attribute set to ''. This is needed if you want to access tile pixel data.\r\n\t\tcrossOrigin: false\r\n\t},\r\n\r\n\tinitialize: function (url, options) {\r\n\r\n\t\tthis._url = url;\r\n\r\n\t\toptions = L.setOptions(this, options);\r\n\r\n\t\t// detecting retina displays, adjusting tileSize and zoom levels\r\n\t\tif (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {\r\n\r\n\t\t\toptions.tileSize = Math.floor(options.tileSize / 2);\r\n\r\n\t\t\tif (!options.zoomReverse) {\r\n\t\t\t\toptions.zoomOffset++;\r\n\t\t\t\toptions.maxZoom--;\r\n\t\t\t} else {\r\n\t\t\t\toptions.zoomOffset--;\r\n\t\t\t\toptions.minZoom++;\r\n\t\t\t}\r\n\r\n\t\t\toptions.minZoom = Math.max(0, options.minZoom);\r\n\t\t}\r\n\r\n\t\tif (typeof options.subdomains === 'string') {\r\n\t\t\toptions.subdomains = options.subdomains.split('');\r\n\t\t}\r\n\r\n\t\t// for https://github.com/Leaflet/Leaflet/issues/137\r\n\t\tif (!L.Browser.android) {\r\n\t\t\tthis.on('tileunload', this._onTileRemove);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method setUrl(url: String, noRedraw?: Boolean): this\r\n\t// Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`).\r\n\tsetUrl: function (url, noRedraw) {\r\n\t\tthis._url = url;\r\n\r\n\t\tif (!noRedraw) {\r\n\t\t\tthis.redraw();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method createTile(coords: Object, done?: Function): HTMLElement\r\n\t// Called only internally, overrides GridLayer's [`createTile()`](#gridlayer-createtile)\r\n\t// to return an `<img>` HTML element with the appropiate image URL given `coords`. The `done`\r\n\t// callback is called when the tile has been loaded.\r\n\tcreateTile: function (coords, done) {\r\n\t\tvar tile = document.createElement('img');\r\n\r\n\t\tL.DomEvent.on(tile, 'load', L.bind(this._tileOnLoad, this, done, tile));\r\n\t\tL.DomEvent.on(tile, 'error', L.bind(this._tileOnError, this, done, tile));\r\n\r\n\t\tif (this.options.crossOrigin) {\r\n\t\t\ttile.crossOrigin = '';\r\n\t\t}\r\n\r\n\t\t/*\r\n\t\t Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons\r\n\t\t http://www.w3.org/TR/WCAG20-TECHS/H67\r\n\t\t*/\r\n\t\ttile.alt = '';\r\n\r\n\t\t/*\r\n\t\t Set role=\"presentation\" to force screen readers to ignore this\r\n\t\t https://www.w3.org/TR/wai-aria/roles#textalternativecomputation\r\n\t\t*/\r\n\t\ttile.setAttribute('role', 'presentation');\r\n\r\n\t\ttile.src = this.getTileUrl(coords);\r\n\r\n\t\treturn tile;\r\n\t},\r\n\r\n\t// @section Extension methods\r\n\t// @uninheritable\r\n\t// Layers extending `TileLayer` might reimplement the following method.\r\n\t// @method getTileUrl(coords: Object): String\r\n\t// Called only internally, returns the URL for a tile given its coordinates.\r\n\t// Classes extending `TileLayer` can override this function to provide custom tile URL naming schemes.\r\n\tgetTileUrl: function (coords) {\r\n\t\tvar data = {\r\n\t\t\tr: L.Browser.retina ? '@2x' : '',\r\n\t\t\ts: this._getSubdomain(coords),\r\n\t\t\tx: coords.x,\r\n\t\t\ty: coords.y,\r\n\t\t\tz: this._getZoomForUrl()\r\n\t\t};\r\n\t\tif (this._map && !this._map.options.crs.infinite) {\r\n\t\t\tvar invertedY = this._globalTileRange.max.y - coords.y;\r\n\t\t\tif (this.options.tms) {\r\n\t\t\t\tdata['y'] = invertedY;\r\n\t\t\t}\r\n\t\t\tdata['-y'] = invertedY;\r\n\t\t}\r\n\r\n\t\treturn L.Util.template(this._url, L.extend(data, this.options));\r\n\t},\r\n\r\n\t_tileOnLoad: function (done, tile) {\r\n\t\t// For https://github.com/Leaflet/Leaflet/issues/3332\r\n\t\tif (L.Browser.ielt9) {\r\n\t\t\tsetTimeout(L.bind(done, this, null, tile), 0);\r\n\t\t} else {\r\n\t\t\tdone(null, tile);\r\n\t\t}\r\n\t},\r\n\r\n\t_tileOnError: function (done, tile, e) {\r\n\t\tvar errorUrl = this.options.errorTileUrl;\r\n\t\tif (errorUrl && tile.src !== errorUrl) {\r\n\t\t\ttile.src = errorUrl;\r\n\t\t}\r\n\t\tdone(e, tile);\r\n\t},\r\n\r\n\tgetTileSize: function () {\r\n\t\tvar map = this._map,\r\n\t\ttileSize = L.GridLayer.prototype.getTileSize.call(this),\r\n\t\tzoom = this._tileZoom + this.options.zoomOffset,\r\n\t\tminNativeZoom = this.options.minNativeZoom,\r\n\t\tmaxNativeZoom = this.options.maxNativeZoom;\r\n\r\n\t\t// decrease tile size when scaling below minNativeZoom\r\n\t\tif (minNativeZoom !== null && zoom < minNativeZoom) {\r\n\t\t\treturn tileSize.divideBy(map.getZoomScale(minNativeZoom, zoom)).round();\r\n\t\t}\r\n\r\n\t\t// increase tile size when scaling above maxNativeZoom\r\n\t\tif (maxNativeZoom !== null && zoom > maxNativeZoom) {\r\n\t\t\treturn tileSize.divideBy(map.getZoomScale(maxNativeZoom, zoom)).round();\r\n\t\t}\r\n\r\n\t\treturn tileSize;\r\n\t},\r\n\r\n\t_onTileRemove: function (e) {\r\n\t\te.tile.onload = null;\r\n\t},\r\n\r\n\t_getZoomForUrl: function () {\r\n\t\tvar zoom = this._tileZoom,\r\n\t\tmaxZoom = this.options.maxZoom,\r\n\t\tzoomReverse = this.options.zoomReverse,\r\n\t\tzoomOffset = this.options.zoomOffset,\r\n\t\tminNativeZoom = this.options.minNativeZoom,\r\n\t\tmaxNativeZoom = this.options.maxNativeZoom;\r\n\r\n\t\tif (zoomReverse) {\r\n\t\t\tzoom = maxZoom - zoom;\r\n\t\t}\r\n\r\n\t\tzoom += zoomOffset;\r\n\r\n\t\tif (minNativeZoom !== null && zoom < minNativeZoom) {\r\n\t\t\treturn minNativeZoom;\r\n\t\t}\r\n\r\n\t\tif (maxNativeZoom !== null && zoom > maxNativeZoom) {\r\n\t\t\treturn maxNativeZoom;\r\n\t\t}\r\n\r\n\t\treturn zoom;\r\n\t},\r\n\r\n\t_getSubdomain: function (tilePoint) {\r\n\t\tvar index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;\r\n\t\treturn this.options.subdomains[index];\r\n\t},\r\n\r\n\t// stops loading all tiles in the background layer\r\n\t_abortLoading: function () {\r\n\t\tvar i, tile;\r\n\t\tfor (i in this._tiles) {\r\n\t\t\tif (this._tiles[i].coords.z !== this._tileZoom) {\r\n\t\t\t\ttile = this._tiles[i].el;\r\n\r\n\t\t\t\ttile.onload = L.Util.falseFn;\r\n\t\t\t\ttile.onerror = L.Util.falseFn;\r\n\r\n\t\t\t\tif (!tile.complete) {\r\n\t\t\t\t\ttile.src = L.Util.emptyImageUrl;\r\n\t\t\t\t\tL.DomUtil.remove(tile);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.tilelayer(urlTemplate: String, options?: TileLayer options)\r\n// Instantiates a tile layer object given a `URL template` and optionally an options object.\r\n\r\nL.tileLayer = function (url, options) {\r\n\treturn new L.TileLayer(url, options);\r\n};\r\n\n\n\n/*\r\n * @class TileLayer.WMS\r\n * @inherits TileLayer\r\n * @aka L.TileLayer.WMS\r\n * Used to display [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services as tile layers on the map. Extends `TileLayer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var nexrad = L.tileLayer.wms(\"http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi\", {\r\n * \tlayers: 'nexrad-n0r-900913',\r\n * \tformat: 'image/png',\r\n * \ttransparent: true,\r\n * \tattribution: \"Weather data © 2012 IEM Nexrad\"\r\n * });\r\n * ```\r\n */\r\n\r\nL.TileLayer.WMS = L.TileLayer.extend({\r\n\r\n\t// @section\r\n\t// @aka TileLayer.WMS options\r\n\t// If any custom options not documented here are used, they will be sent to the\r\n\t// WMS server as extra parameters in each request URL. This can be useful for\r\n\t// [non-standard vendor WMS parameters](http://docs.geoserver.org/stable/en/user/services/wms/vendor.html).\r\n\tdefaultWmsParams: {\r\n\t\tservice: 'WMS',\r\n\t\trequest: 'GetMap',\r\n\r\n\t\t// @option layers: String = ''\r\n\t\t// **(required)** Comma-separated list of WMS layers to show.\r\n\t\tlayers: '',\r\n\r\n\t\t// @option styles: String = ''\r\n\t\t// Comma-separated list of WMS styles.\r\n\t\tstyles: '',\r\n\r\n\t\t// @option format: String = 'image/jpeg'\r\n\t\t// WMS image format (use `'image/png'` for layers with transparency).\r\n\t\tformat: 'image/jpeg',\r\n\r\n\t\t// @option transparent: Boolean = false\r\n\t\t// If `true`, the WMS service will return images with transparency.\r\n\t\ttransparent: false,\r\n\r\n\t\t// @option version: String = '1.1.1'\r\n\t\t// Version of the WMS service to use\r\n\t\tversion: '1.1.1'\r\n\t},\r\n\r\n\toptions: {\r\n\t\t// @option crs: CRS = null\r\n\t\t// Coordinate Reference System to use for the WMS requests, defaults to\r\n\t\t// map CRS. Don't change this if you're not sure what it means.\r\n\t\tcrs: null,\r\n\r\n\t\t// @option uppercase: Boolean = false\r\n\t\t// If `true`, WMS request parameter keys will be uppercase.\r\n\t\tuppercase: false\r\n\t},\r\n\r\n\tinitialize: function (url, options) {\r\n\r\n\t\tthis._url = url;\r\n\r\n\t\tvar wmsParams = L.extend({}, this.defaultWmsParams);\r\n\r\n\t\t// all keys that are not TileLayer options go to WMS params\r\n\t\tfor (var i in options) {\r\n\t\t\tif (!(i in this.options)) {\r\n\t\t\t\twmsParams[i] = options[i];\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\toptions = L.setOptions(this, options);\r\n\r\n\t\twmsParams.width = wmsParams.height = options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1);\r\n\r\n\t\tthis.wmsParams = wmsParams;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\r\n\t\tthis._crs = this.options.crs || map.options.crs;\r\n\t\tthis._wmsVersion = parseFloat(this.wmsParams.version);\r\n\r\n\t\tvar projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';\r\n\t\tthis.wmsParams[projectionKey] = this._crs.code;\r\n\r\n\t\tL.TileLayer.prototype.onAdd.call(this, map);\r\n\t},\r\n\r\n\tgetTileUrl: function (coords) {\r\n\r\n\t\tvar tileBounds = this._tileCoordsToBounds(coords),\r\n\t\t    nw = this._crs.project(tileBounds.getNorthWest()),\r\n\t\t    se = this._crs.project(tileBounds.getSouthEast()),\r\n\r\n\t\t    bbox = (this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?\r\n\t\t\t    [se.y, nw.x, nw.y, se.x] :\r\n\t\t\t    [nw.x, se.y, se.x, nw.y]).join(','),\r\n\r\n\t\t    url = L.TileLayer.prototype.getTileUrl.call(this, coords);\r\n\r\n\t\treturn url +\r\n\t\t\tL.Util.getParamString(this.wmsParams, url, this.options.uppercase) +\r\n\t\t\t(this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox;\r\n\t},\r\n\r\n\t// @method setParams(params: Object, noRedraw?: Boolean): this\r\n\t// Merges an object with the new parameters and re-requests tiles on the current screen (unless `noRedraw` was set to true).\r\n\tsetParams: function (params, noRedraw) {\r\n\r\n\t\tL.extend(this.wmsParams, params);\r\n\r\n\t\tif (!noRedraw) {\r\n\t\t\tthis.redraw();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.tileLayer.wms(baseUrl: String, options: TileLayer.WMS options)\r\n// Instantiates a WMS tile layer object given a base URL of the WMS service and a WMS parameters/options object.\r\nL.tileLayer.wms = function (url, options) {\r\n\treturn new L.TileLayer.WMS(url, options);\r\n};\r\n\n\n\n/*\r\n * @class ImageOverlay\r\n * @aka L.ImageOverlay\r\n * @inherits Interactive layer\r\n *\r\n * Used to load and display a single image over specific bounds of the map. Extends `Layer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg',\r\n * \timageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]];\r\n * L.imageOverlay(imageUrl, imageBounds).addTo(map);\r\n * ```\r\n */\r\n\r\nL.ImageOverlay = L.Layer.extend({\r\n\r\n\t// @section\r\n\t// @aka ImageOverlay options\r\n\toptions: {\r\n\t\t// @option opacity: Number = 1.0\r\n\t\t// The opacity of the image overlay.\r\n\t\topacity: 1,\r\n\r\n\t\t// @option alt: String = ''\r\n\t\t// Text for the `alt` attribute of the image (useful for accessibility).\r\n\t\talt: '',\r\n\r\n\t\t// @option interactive: Boolean = false\r\n\t\t// If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered.\r\n\t\tinteractive: false,\r\n\r\n\t\t// @option crossOrigin: Boolean = false\r\n\t\t// If true, the image will have its crossOrigin attribute set to ''. This is needed if you want to access image pixel data.\r\n\t\tcrossOrigin: false\r\n\t},\r\n\r\n\tinitialize: function (url, bounds, options) { // (String, LatLngBounds, Object)\r\n\t\tthis._url = url;\r\n\t\tthis._bounds = L.latLngBounds(bounds);\r\n\r\n\t\tL.setOptions(this, options);\r\n\t},\r\n\r\n\tonAdd: function () {\r\n\t\tif (!this._image) {\r\n\t\t\tthis._initImage();\r\n\r\n\t\t\tif (this.options.opacity < 1) {\r\n\t\t\t\tthis._updateOpacity();\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (this.options.interactive) {\r\n\t\t\tL.DomUtil.addClass(this._image, 'leaflet-interactive');\r\n\t\t\tthis.addInteractiveTarget(this._image);\r\n\t\t}\r\n\r\n\t\tthis.getPane().appendChild(this._image);\r\n\t\tthis._reset();\r\n\t},\r\n\r\n\tonRemove: function () {\r\n\t\tL.DomUtil.remove(this._image);\r\n\t\tif (this.options.interactive) {\r\n\t\t\tthis.removeInteractiveTarget(this._image);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method setOpacity(opacity: Number): this\r\n\t// Sets the opacity of the overlay.\r\n\tsetOpacity: function (opacity) {\r\n\t\tthis.options.opacity = opacity;\r\n\r\n\t\tif (this._image) {\r\n\t\t\tthis._updateOpacity();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\tsetStyle: function (styleOpts) {\r\n\t\tif (styleOpts.opacity) {\r\n\t\t\tthis.setOpacity(styleOpts.opacity);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method bringToFront(): this\r\n\t// Brings the layer to the top of all overlays.\r\n\tbringToFront: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toFront(this._image);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method bringToBack(): this\r\n\t// Brings the layer to the bottom of all overlays.\r\n\tbringToBack: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toBack(this._image);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setUrl(url: String): this\r\n\t// Changes the URL of the image.\r\n\tsetUrl: function (url) {\r\n\t\tthis._url = url;\r\n\r\n\t\tif (this._image) {\r\n\t\t\tthis._image.src = url;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setBounds(bounds: LatLngBounds): this\r\n\t// Update the bounds that this ImageOverlay covers\r\n\tsetBounds: function (bounds) {\r\n\t\tthis._bounds = bounds;\r\n\r\n\t\tif (this._map) {\r\n\t\t\tthis._reset();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\tvar events = {\r\n\t\t\tzoom: this._reset,\r\n\t\t\tviewreset: this._reset\r\n\t\t};\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tevents.zoomanim = this._animateZoom;\r\n\t\t}\r\n\r\n\t\treturn events;\r\n\t},\r\n\r\n\t// @method getBounds(): LatLngBounds\r\n\t// Get the bounds that this ImageOverlay covers\r\n\tgetBounds: function () {\r\n\t\treturn this._bounds;\r\n\t},\r\n\r\n\t// @method getElement(): HTMLElement\r\n\t// Get the img element that represents the ImageOverlay on the map\r\n\tgetElement: function () {\r\n\t\treturn this._image;\r\n\t},\r\n\r\n\t_initImage: function () {\r\n\t\tvar img = this._image = L.DomUtil.create('img',\r\n\t\t\t\t'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : ''));\r\n\r\n\t\timg.onselectstart = L.Util.falseFn;\r\n\t\timg.onmousemove = L.Util.falseFn;\r\n\r\n\t\timg.onload = L.bind(this.fire, this, 'load');\r\n\r\n\t\tif (this.options.crossOrigin) {\r\n\t\t\timg.crossOrigin = '';\r\n\t\t}\r\n\r\n\t\timg.src = this._url;\r\n\t\timg.alt = this.options.alt;\r\n\t},\r\n\r\n\t_animateZoom: function (e) {\r\n\t\tvar scale = this._map.getZoomScale(e.zoom),\r\n\t\t    offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min;\r\n\r\n\t\tL.DomUtil.setTransform(this._image, offset, scale);\r\n\t},\r\n\r\n\t_reset: function () {\r\n\t\tvar image = this._image,\r\n\t\t    bounds = new L.Bounds(\r\n\t\t        this._map.latLngToLayerPoint(this._bounds.getNorthWest()),\r\n\t\t        this._map.latLngToLayerPoint(this._bounds.getSouthEast())),\r\n\t\t    size = bounds.getSize();\r\n\r\n\t\tL.DomUtil.setPosition(image, bounds.min);\r\n\r\n\t\timage.style.width  = size.x + 'px';\r\n\t\timage.style.height = size.y + 'px';\r\n\t},\r\n\r\n\t_updateOpacity: function () {\r\n\t\tL.DomUtil.setOpacity(this._image, this.options.opacity);\r\n\t}\r\n});\r\n\r\n// @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options)\r\n// Instantiates an image overlay object given the URL of the image and the\r\n// geographical bounds it is tied to.\r\nL.imageOverlay = function (url, bounds, options) {\r\n\treturn new L.ImageOverlay(url, bounds, options);\r\n};\r\n\n\n\n/*\r\n * @class Icon\r\n * @aka L.Icon\r\n * @inherits Layer\r\n *\r\n * Represents an icon to provide when creating a marker.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var myIcon = L.icon({\r\n *     iconUrl: 'my-icon.png',\r\n *     iconRetinaUrl: 'my-icon@2x.png',\r\n *     iconSize: [38, 95],\r\n *     iconAnchor: [22, 94],\r\n *     popupAnchor: [-3, -76],\r\n *     shadowUrl: 'my-icon-shadow.png',\r\n *     shadowRetinaUrl: 'my-icon-shadow@2x.png',\r\n *     shadowSize: [68, 95],\r\n *     shadowAnchor: [22, 94]\r\n * });\r\n *\r\n * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);\r\n * ```\r\n *\r\n * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default.\r\n *\r\n */\r\n\r\nL.Icon = L.Class.extend({\r\n\r\n\t/* @section\r\n\t * @aka Icon options\r\n\t *\r\n\t * @option iconUrl: String = null\r\n\t * **(required)** The URL to the icon image (absolute or relative to your script path).\r\n\t *\r\n\t * @option iconRetinaUrl: String = null\r\n\t * The URL to a retina sized version of the icon image (absolute or relative to your\r\n\t * script path). Used for Retina screen devices.\r\n\t *\r\n\t * @option iconSize: Point = null\r\n\t * Size of the icon image in pixels.\r\n\t *\r\n\t * @option iconAnchor: Point = null\r\n\t * The coordinates of the \"tip\" of the icon (relative to its top left corner). The icon\r\n\t * will be aligned so that this point is at the marker's geographical location. Centered\r\n\t * by default if size is specified, also can be set in CSS with negative margins.\r\n\t *\r\n\t * @option popupAnchor: Point = null\r\n\t * The coordinates of the point from which popups will \"open\", relative to the icon anchor.\r\n\t *\r\n\t * @option shadowUrl: String = null\r\n\t * The URL to the icon shadow image. If not specified, no shadow image will be created.\r\n\t *\r\n\t * @option shadowRetinaUrl: String = null\r\n\t *\r\n\t * @option shadowSize: Point = null\r\n\t * Size of the shadow image in pixels.\r\n\t *\r\n\t * @option shadowAnchor: Point = null\r\n\t * The coordinates of the \"tip\" of the shadow (relative to its top left corner) (the same\r\n\t * as iconAnchor if not specified).\r\n\t *\r\n\t * @option className: String = ''\r\n\t * A custom class name to assign to both icon and shadow images. Empty by default.\r\n\t */\r\n\r\n\tinitialize: function (options) {\r\n\t\tL.setOptions(this, options);\r\n\t},\r\n\r\n\t// @method createIcon(oldIcon?: HTMLElement): HTMLElement\r\n\t// Called internally when the icon has to be shown, returns a `<img>` HTML element\r\n\t// styled according to the options.\r\n\tcreateIcon: function (oldIcon) {\r\n\t\treturn this._createIcon('icon', oldIcon);\r\n\t},\r\n\r\n\t// @method createShadow(oldIcon?: HTMLElement): HTMLElement\r\n\t// As `createIcon`, but for the shadow beneath it.\r\n\tcreateShadow: function (oldIcon) {\r\n\t\treturn this._createIcon('shadow', oldIcon);\r\n\t},\r\n\r\n\t_createIcon: function (name, oldIcon) {\r\n\t\tvar src = this._getIconUrl(name);\r\n\r\n\t\tif (!src) {\r\n\t\t\tif (name === 'icon') {\r\n\t\t\t\tthrow new Error('iconUrl not set in Icon options (see the docs).');\r\n\t\t\t}\r\n\t\t\treturn null;\r\n\t\t}\r\n\r\n\t\tvar img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);\r\n\t\tthis._setIconStyles(img, name);\r\n\r\n\t\treturn img;\r\n\t},\r\n\r\n\t_setIconStyles: function (img, name) {\r\n\t\tvar options = this.options;\r\n\t\tvar sizeOption = options[name + 'Size'];\r\n\r\n\t\tif (typeof sizeOption === 'number') {\r\n\t\t\tsizeOption = [sizeOption, sizeOption];\r\n\t\t}\r\n\r\n\t\tvar size = L.point(sizeOption),\r\n\t\t    anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||\r\n\t\t            size && size.divideBy(2, true));\r\n\r\n\t\timg.className = 'leaflet-marker-' + name + ' ' + (options.className || '');\r\n\r\n\t\tif (anchor) {\r\n\t\t\timg.style.marginLeft = (-anchor.x) + 'px';\r\n\t\t\timg.style.marginTop  = (-anchor.y) + 'px';\r\n\t\t}\r\n\r\n\t\tif (size) {\r\n\t\t\timg.style.width  = size.x + 'px';\r\n\t\t\timg.style.height = size.y + 'px';\r\n\t\t}\r\n\t},\r\n\r\n\t_createImg: function (src, el) {\r\n\t\tel = el || document.createElement('img');\r\n\t\tel.src = src;\r\n\t\treturn el;\r\n\t},\r\n\r\n\t_getIconUrl: function (name) {\r\n\t\treturn L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.icon(options: Icon options)\r\n// Creates an icon instance with the given options.\r\nL.icon = function (options) {\r\n\treturn new L.Icon(options);\r\n};\r\n\n\n\n/*\n * @miniclass Icon.Default (Icon)\n * @aka L.Icon.Default\n * @section\n *\n * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when\n * no icon is specified. Points to the blue marker image distributed with Leaflet\n * releases.\n *\n * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options`\n * (which is a set of `Icon options`).\n *\n * If you want to _completely_ replace the default icon, override the\n * `L.Marker.prototype.options.icon` with your own icon instead.\n */\n\nL.Icon.Default = L.Icon.extend({\n\n\toptions: {\n\t\ticonUrl:       'marker-icon.png',\n\t\ticonRetinaUrl: 'marker-icon-2x.png',\n\t\tshadowUrl:     'marker-shadow.png',\n\t\ticonSize:    [25, 41],\n\t\ticonAnchor:  [12, 41],\n\t\tpopupAnchor: [1, -34],\n\t\ttooltipAnchor: [16, -28],\n\t\tshadowSize:  [41, 41]\n\t},\n\n\t_getIconUrl: function (name) {\n\t\tif (!L.Icon.Default.imagePath) {\t// Deprecated, backwards-compatibility only\n\t\t\tL.Icon.Default.imagePath = this._detectIconPath();\n\t\t}\n\n\t\t// @option imagePath: String\n\t\t// `L.Icon.Default` will try to auto-detect the absolute location of the\n\t\t// blue icon images. If you are placing these images in a non-standard\n\t\t// way, set this option to point to the right absolute path.\n\t\treturn (this.options.imagePath || L.Icon.Default.imagePath) + L.Icon.prototype._getIconUrl.call(this, name);\n\t},\n\n\t_detectIconPath: function () {\n\t\tvar el = L.DomUtil.create('div',  'leaflet-default-icon-path', document.body);\n\t\tvar path = L.DomUtil.getStyle(el, 'background-image') ||\n\t\t           L.DomUtil.getStyle(el, 'backgroundImage');\t// IE8\n\n\t\tdocument.body.removeChild(el);\n\n\t\treturn path.indexOf('url') === 0 ?\n\t\t\tpath.replace(/^url\\([\\\"\\']?/, '').replace(/marker-icon\\.png[\\\"\\']?\\)$/, '') : '';\n\t}\n});\n\n\n\n/*\r\n * @class Marker\r\n * @inherits Interactive layer\r\n * @aka L.Marker\r\n * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.marker([50.5, 30.5]).addTo(map);\r\n * ```\r\n */\r\n\r\nL.Marker = L.Layer.extend({\r\n\r\n\t// @section\r\n\t// @aka Marker options\r\n\toptions: {\r\n\t\t// @option icon: Icon = *\r\n\t\t// Icon class to use for rendering the marker. See [Icon documentation](#L.Icon) for details on how to customize the marker icon. If not specified, a new `L.Icon.Default` is used.\r\n\t\ticon: new L.Icon.Default(),\r\n\r\n\t\t// Option inherited from \"Interactive layer\" abstract class\r\n\t\tinteractive: true,\r\n\r\n\t\t// @option draggable: Boolean = false\r\n\t\t// Whether the marker is draggable with mouse/touch or not.\r\n\t\tdraggable: false,\r\n\r\n\t\t// @option keyboard: Boolean = true\r\n\t\t// Whether the marker can be tabbed to with a keyboard and clicked by pressing enter.\r\n\t\tkeyboard: true,\r\n\r\n\t\t// @option title: String = ''\r\n\t\t// Text for the browser tooltip that appear on marker hover (no tooltip by default).\r\n\t\ttitle: '',\r\n\r\n\t\t// @option alt: String = ''\r\n\t\t// Text for the `alt` attribute of the icon image (useful for accessibility).\r\n\t\talt: '',\r\n\r\n\t\t// @option zIndexOffset: Number = 0\r\n\t\t// By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively).\r\n\t\tzIndexOffset: 0,\r\n\r\n\t\t// @option opacity: Number = 1.0\r\n\t\t// The opacity of the marker.\r\n\t\topacity: 1,\r\n\r\n\t\t// @option riseOnHover: Boolean = false\r\n\t\t// If `true`, the marker will get on top of others when you hover the mouse over it.\r\n\t\triseOnHover: false,\r\n\r\n\t\t// @option riseOffset: Number = 250\r\n\t\t// The z-index offset used for the `riseOnHover` feature.\r\n\t\triseOffset: 250,\r\n\r\n\t\t// @option pane: String = 'markerPane'\r\n\t\t// `Map pane` where the markers icon will be added.\r\n\t\tpane: 'markerPane',\r\n\r\n\t\t// FIXME: shadowPane is no longer a valid option\r\n\t\tnonBubblingEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu']\r\n\t},\r\n\r\n\t/* @section\r\n\t *\r\n\t * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods:\r\n\t */\r\n\r\n\tinitialize: function (latlng, options) {\r\n\t\tL.setOptions(this, options);\r\n\t\tthis._latlng = L.latLng(latlng);\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tthis._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tmap.on('zoomanim', this._animateZoom, this);\r\n\t\t}\r\n\r\n\t\tthis._initIcon();\r\n\t\tthis.update();\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tif (this.dragging && this.dragging.enabled()) {\r\n\t\t\tthis.options.draggable = true;\r\n\t\t\tthis.dragging.removeHooks();\r\n\t\t}\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tmap.off('zoomanim', this._animateZoom, this);\r\n\t\t}\r\n\r\n\t\tthis._removeIcon();\r\n\t\tthis._removeShadow();\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\treturn {\r\n\t\t\tzoom: this.update,\r\n\t\t\tviewreset: this.update\r\n\t\t};\r\n\t},\r\n\r\n\t// @method getLatLng: LatLng\r\n\t// Returns the current geographical position of the marker.\r\n\tgetLatLng: function () {\r\n\t\treturn this._latlng;\r\n\t},\r\n\r\n\t// @method setLatLng(latlng: LatLng): this\r\n\t// Changes the marker position to the given point.\r\n\tsetLatLng: function (latlng) {\r\n\t\tvar oldLatLng = this._latlng;\r\n\t\tthis._latlng = L.latLng(latlng);\r\n\t\tthis.update();\r\n\r\n\t\t// @event move: Event\r\n\t\t// Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`.\r\n\t\treturn this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng});\r\n\t},\r\n\r\n\t// @method setZIndexOffset(offset: Number): this\r\n\t// Changes the [zIndex offset](#marker-zindexoffset) of the marker.\r\n\tsetZIndexOffset: function (offset) {\r\n\t\tthis.options.zIndexOffset = offset;\r\n\t\treturn this.update();\r\n\t},\r\n\r\n\t// @method setIcon(icon: Icon): this\r\n\t// Changes the marker icon.\r\n\tsetIcon: function (icon) {\r\n\r\n\t\tthis.options.icon = icon;\r\n\r\n\t\tif (this._map) {\r\n\t\t\tthis._initIcon();\r\n\t\t\tthis.update();\r\n\t\t}\r\n\r\n\t\tif (this._popup) {\r\n\t\t\tthis.bindPopup(this._popup, this._popup.options);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\tgetElement: function () {\r\n\t\treturn this._icon;\r\n\t},\r\n\r\n\tupdate: function () {\r\n\r\n\t\tif (this._icon) {\r\n\t\t\tvar pos = this._map.latLngToLayerPoint(this._latlng).round();\r\n\t\t\tthis._setPos(pos);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_initIcon: function () {\r\n\t\tvar options = this.options,\r\n\t\t    classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');\r\n\r\n\t\tvar icon = options.icon.createIcon(this._icon),\r\n\t\t    addIcon = false;\r\n\r\n\t\t// if we're not reusing the icon, remove the old one and init new one\r\n\t\tif (icon !== this._icon) {\r\n\t\t\tif (this._icon) {\r\n\t\t\t\tthis._removeIcon();\r\n\t\t\t}\r\n\t\t\taddIcon = true;\r\n\r\n\t\t\tif (options.title) {\r\n\t\t\t\ticon.title = options.title;\r\n\t\t\t}\r\n\t\t\tif (options.alt) {\r\n\t\t\t\ticon.alt = options.alt;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tL.DomUtil.addClass(icon, classToAdd);\r\n\r\n\t\tif (options.keyboard) {\r\n\t\t\ticon.tabIndex = '0';\r\n\t\t}\r\n\r\n\t\tthis._icon = icon;\r\n\r\n\t\tif (options.riseOnHover) {\r\n\t\t\tthis.on({\r\n\t\t\t\tmouseover: this._bringToFront,\r\n\t\t\t\tmouseout: this._resetZIndex\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tvar newShadow = options.icon.createShadow(this._shadow),\r\n\t\t    addShadow = false;\r\n\r\n\t\tif (newShadow !== this._shadow) {\r\n\t\t\tthis._removeShadow();\r\n\t\t\taddShadow = true;\r\n\t\t}\r\n\r\n\t\tif (newShadow) {\r\n\t\t\tL.DomUtil.addClass(newShadow, classToAdd);\r\n\t\t\tnewShadow.alt = '';\r\n\t\t}\r\n\t\tthis._shadow = newShadow;\r\n\r\n\r\n\t\tif (options.opacity < 1) {\r\n\t\t\tthis._updateOpacity();\r\n\t\t}\r\n\r\n\r\n\t\tif (addIcon) {\r\n\t\t\tthis.getPane().appendChild(this._icon);\r\n\t\t}\r\n\t\tthis._initInteraction();\r\n\t\tif (newShadow && addShadow) {\r\n\t\t\tthis.getPane('shadowPane').appendChild(this._shadow);\r\n\t\t}\r\n\t},\r\n\r\n\t_removeIcon: function () {\r\n\t\tif (this.options.riseOnHover) {\r\n\t\t\tthis.off({\r\n\t\t\t\tmouseover: this._bringToFront,\r\n\t\t\t\tmouseout: this._resetZIndex\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tL.DomUtil.remove(this._icon);\r\n\t\tthis.removeInteractiveTarget(this._icon);\r\n\r\n\t\tthis._icon = null;\r\n\t},\r\n\r\n\t_removeShadow: function () {\r\n\t\tif (this._shadow) {\r\n\t\t\tL.DomUtil.remove(this._shadow);\r\n\t\t}\r\n\t\tthis._shadow = null;\r\n\t},\r\n\r\n\t_setPos: function (pos) {\r\n\t\tL.DomUtil.setPosition(this._icon, pos);\r\n\r\n\t\tif (this._shadow) {\r\n\t\t\tL.DomUtil.setPosition(this._shadow, pos);\r\n\t\t}\r\n\r\n\t\tthis._zIndex = pos.y + this.options.zIndexOffset;\r\n\r\n\t\tthis._resetZIndex();\r\n\t},\r\n\r\n\t_updateZIndex: function (offset) {\r\n\t\tthis._icon.style.zIndex = this._zIndex + offset;\r\n\t},\r\n\r\n\t_animateZoom: function (opt) {\r\n\t\tvar pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();\r\n\r\n\t\tthis._setPos(pos);\r\n\t},\r\n\r\n\t_initInteraction: function () {\r\n\r\n\t\tif (!this.options.interactive) { return; }\r\n\r\n\t\tL.DomUtil.addClass(this._icon, 'leaflet-interactive');\r\n\r\n\t\tthis.addInteractiveTarget(this._icon);\r\n\r\n\t\tif (L.Handler.MarkerDrag) {\r\n\t\t\tvar draggable = this.options.draggable;\r\n\t\t\tif (this.dragging) {\r\n\t\t\t\tdraggable = this.dragging.enabled();\r\n\t\t\t\tthis.dragging.disable();\r\n\t\t\t}\r\n\r\n\t\t\tthis.dragging = new L.Handler.MarkerDrag(this);\r\n\r\n\t\t\tif (draggable) {\r\n\t\t\t\tthis.dragging.enable();\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t// @method setOpacity(opacity: Number): this\r\n\t// Changes the opacity of the marker.\r\n\tsetOpacity: function (opacity) {\r\n\t\tthis.options.opacity = opacity;\r\n\t\tif (this._map) {\r\n\t\t\tthis._updateOpacity();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_updateOpacity: function () {\r\n\t\tvar opacity = this.options.opacity;\r\n\r\n\t\tL.DomUtil.setOpacity(this._icon, opacity);\r\n\r\n\t\tif (this._shadow) {\r\n\t\t\tL.DomUtil.setOpacity(this._shadow, opacity);\r\n\t\t}\r\n\t},\r\n\r\n\t_bringToFront: function () {\r\n\t\tthis._updateZIndex(this.options.riseOffset);\r\n\t},\r\n\r\n\t_resetZIndex: function () {\r\n\t\tthis._updateZIndex(0);\r\n\t},\r\n\r\n\t_getPopupAnchor: function () {\r\n\t\treturn this.options.icon.options.popupAnchor || [0, 0];\r\n\t},\r\n\r\n\t_getTooltipAnchor: function () {\r\n\t\treturn this.options.icon.options.tooltipAnchor || [0, 0];\r\n\t}\r\n});\r\n\r\n\r\n// factory L.marker(latlng: LatLng, options? : Marker options)\r\n\r\n// @factory L.marker(latlng: LatLng, options? : Marker options)\r\n// Instantiates a Marker object given a geographical point and optionally an options object.\r\nL.marker = function (latlng, options) {\r\n\treturn new L.Marker(latlng, options);\r\n};\r\n\n\n\n/*\n * @class DivIcon\n * @aka L.DivIcon\n * @inherits Icon\n *\n * Represents a lightweight icon for markers that uses a simple `<div>`\n * element instead of an image. Inherits from `Icon` but ignores the `iconUrl` and shadow options.\n *\n * @example\n * ```js\n * var myIcon = L.divIcon({className: 'my-div-icon'});\n * // you can set .my-div-icon styles in CSS\n *\n * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);\n * ```\n *\n * By default, it has a 'leaflet-div-icon' CSS class and is styled as a little white square with a shadow.\n */\n\nL.DivIcon = L.Icon.extend({\n\toptions: {\n\t\t// @section\n\t\t// @aka DivIcon options\n\t\ticonSize: [12, 12], // also can be set through CSS\n\n\t\t// iconAnchor: (Point),\n\t\t// popupAnchor: (Point),\n\n\t\t// @option html: String = ''\n\t\t// Custom HTML code to put inside the div element, empty by default.\n\t\thtml: false,\n\n\t\t// @option bgPos: Point = [0, 0]\n\t\t// Optional relative position of the background, in pixels\n\t\tbgPos: null,\n\n\t\tclassName: 'leaflet-div-icon'\n\t},\n\n\tcreateIcon: function (oldIcon) {\n\t\tvar div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),\n\t\t    options = this.options;\n\n\t\tdiv.innerHTML = options.html !== false ? options.html : '';\n\n\t\tif (options.bgPos) {\n\t\t\tvar bgPos = L.point(options.bgPos);\n\t\t\tdiv.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px';\n\t\t}\n\t\tthis._setIconStyles(div, 'icon');\n\n\t\treturn div;\n\t},\n\n\tcreateShadow: function () {\n\t\treturn null;\n\t}\n});\n\n// @factory L.divIcon(options: DivIcon options)\n// Creates a `DivIcon` instance with the given options.\nL.divIcon = function (options) {\n\treturn new L.DivIcon(options);\n};\n\n\n\n/*\r\n * @class DivOverlay\r\n * @inherits Layer\r\n * @aka L.DivOverlay\r\n * Base model for L.Popup and L.Tooltip. Inherit from it for custom popup like plugins.\r\n */\r\n\r\n// @namespace DivOverlay\r\nL.DivOverlay = L.Layer.extend({\r\n\r\n\t// @section\r\n\t// @aka DivOverlay options\r\n\toptions: {\r\n\t\t// @option offset: Point = Point(0, 7)\r\n\t\t// The offset of the popup position. Useful to control the anchor\r\n\t\t// of the popup when opening it on some overlays.\r\n\t\toffset: [0, 7],\r\n\r\n\t\t// @option className: String = ''\r\n\t\t// A custom CSS class name to assign to the popup.\r\n\t\tclassName: '',\r\n\r\n\t\t// @option pane: String = 'popupPane'\r\n\t\t// `Map pane` where the popup will be added.\r\n\t\tpane: 'popupPane'\r\n\t},\r\n\r\n\tinitialize: function (options, source) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._source = source;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tthis._zoomAnimated = map._zoomAnimated;\r\n\r\n\t\tif (!this._container) {\r\n\t\t\tthis._initLayout();\r\n\t\t}\r\n\r\n\t\tif (map._fadeAnimated) {\r\n\t\t\tL.DomUtil.setOpacity(this._container, 0);\r\n\t\t}\r\n\r\n\t\tclearTimeout(this._removeTimeout);\r\n\t\tthis.getPane().appendChild(this._container);\r\n\t\tthis.update();\r\n\r\n\t\tif (map._fadeAnimated) {\r\n\t\t\tL.DomUtil.setOpacity(this._container, 1);\r\n\t\t}\r\n\r\n\t\tthis.bringToFront();\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tif (map._fadeAnimated) {\r\n\t\t\tL.DomUtil.setOpacity(this._container, 0);\r\n\t\t\tthis._removeTimeout = setTimeout(L.bind(L.DomUtil.remove, L.DomUtil, this._container), 200);\r\n\t\t} else {\r\n\t\t\tL.DomUtil.remove(this._container);\r\n\t\t}\r\n\t},\r\n\r\n\t// @namespace Popup\r\n\t// @method getLatLng: LatLng\r\n\t// Returns the geographical point of popup.\r\n\tgetLatLng: function () {\r\n\t\treturn this._latlng;\r\n\t},\r\n\r\n\t// @method setLatLng(latlng: LatLng): this\r\n\t// Sets the geographical point where the popup will open.\r\n\tsetLatLng: function (latlng) {\r\n\t\tthis._latlng = L.latLng(latlng);\r\n\t\tif (this._map) {\r\n\t\t\tthis._updatePosition();\r\n\t\t\tthis._adjustPan();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getContent: String|HTMLElement\r\n\t// Returns the content of the popup.\r\n\tgetContent: function () {\r\n\t\treturn this._content;\r\n\t},\r\n\r\n\t// @method setContent(htmlContent: String|HTMLElement|Function): this\r\n\t// Sets the HTML content of the popup. If a function is passed the source layer will be passed to the function. The function should return a `String` or `HTMLElement` to be used in the popup.\r\n\tsetContent: function (content) {\r\n\t\tthis._content = content;\r\n\t\tthis.update();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getElement: String|HTMLElement\r\n\t// Alias for [getContent()](#popup-getcontent)\r\n\tgetElement: function () {\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\t// @method update: null\r\n\t// Updates the popup content, layout and position. Useful for updating the popup after something inside changed, e.g. image loaded.\r\n\tupdate: function () {\r\n\t\tif (!this._map) { return; }\r\n\r\n\t\tthis._container.style.visibility = 'hidden';\r\n\r\n\t\tthis._updateContent();\r\n\t\tthis._updateLayout();\r\n\t\tthis._updatePosition();\r\n\r\n\t\tthis._container.style.visibility = '';\r\n\r\n\t\tthis._adjustPan();\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\tvar events = {\r\n\t\t\tzoom: this._updatePosition,\r\n\t\t\tviewreset: this._updatePosition\r\n\t\t};\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tevents.zoomanim = this._animateZoom;\r\n\t\t}\r\n\t\treturn events;\r\n\t},\r\n\r\n\t// @method isOpen: Boolean\r\n\t// Returns `true` when the popup is visible on the map.\r\n\tisOpen: function () {\r\n\t\treturn !!this._map && this._map.hasLayer(this);\r\n\t},\r\n\r\n\t// @method bringToFront: this\r\n\t// Brings this popup in front of other popups (in the same map pane).\r\n\tbringToFront: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toFront(this._container);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method bringToBack: this\r\n\t// Brings this popup to the back of other popups (in the same map pane).\r\n\tbringToBack: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toBack(this._container);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_updateContent: function () {\r\n\t\tif (!this._content) { return; }\r\n\r\n\t\tvar node = this._contentNode;\r\n\t\tvar content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content;\r\n\r\n\t\tif (typeof content === 'string') {\r\n\t\t\tnode.innerHTML = content;\r\n\t\t} else {\r\n\t\t\twhile (node.hasChildNodes()) {\r\n\t\t\t\tnode.removeChild(node.firstChild);\r\n\t\t\t}\r\n\t\t\tnode.appendChild(content);\r\n\t\t}\r\n\t\tthis.fire('contentupdate');\r\n\t},\r\n\r\n\t_updatePosition: function () {\r\n\t\tif (!this._map) { return; }\r\n\r\n\t\tvar pos = this._map.latLngToLayerPoint(this._latlng),\r\n\t\t    offset = L.point(this.options.offset),\r\n\t\t    anchor = this._getAnchor();\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tL.DomUtil.setPosition(this._container, pos.add(anchor));\r\n\t\t} else {\r\n\t\t\toffset = offset.add(pos).add(anchor);\r\n\t\t}\r\n\r\n\t\tvar bottom = this._containerBottom = -offset.y,\r\n\t\t    left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x;\r\n\r\n\t\t// bottom position the popup in case the height of the popup changes (images loading etc)\r\n\t\tthis._container.style.bottom = bottom + 'px';\r\n\t\tthis._container.style.left = left + 'px';\r\n\t},\r\n\r\n\t_getAnchor: function () {\r\n\t\treturn [0, 0];\r\n\t}\r\n\r\n});\r\n\n\n\n/*\r\n * @class Popup\r\n * @inherits DivOverlay\r\n * @aka L.Popup\r\n * Used to open popups in certain places of the map. Use [Map.openPopup](#map-openpopup) to\r\n * open popups while making sure that only one popup is open at one time\r\n * (recommended for usability), or use [Map.addLayer](#map-addlayer) to open as many as you want.\r\n *\r\n * @example\r\n *\r\n * If you want to just bind a popup to marker click and then open it, it's really easy:\r\n *\r\n * ```js\r\n * marker.bindPopup(popupContent).openPopup();\r\n * ```\r\n * Path overlays like polylines also have a `bindPopup` method.\r\n * Here's a more complicated way to open a popup on a map:\r\n *\r\n * ```js\r\n * var popup = L.popup()\r\n * \t.setLatLng(latlng)\r\n * \t.setContent('<p>Hello world!<br />This is a nice popup.</p>')\r\n * \t.openOn(map);\r\n * ```\r\n */\r\n\r\n\r\n// @namespace Popup\r\nL.Popup = L.DivOverlay.extend({\r\n\r\n\t// @section\r\n\t// @aka Popup options\r\n\toptions: {\r\n\t\t// @option maxWidth: Number = 300\r\n\t\t// Max width of the popup, in pixels.\r\n\t\tmaxWidth: 300,\r\n\r\n\t\t// @option minWidth: Number = 50\r\n\t\t// Min width of the popup, in pixels.\r\n\t\tminWidth: 50,\r\n\r\n\t\t// @option maxHeight: Number = null\r\n\t\t// If set, creates a scrollable container of the given height\r\n\t\t// inside a popup if its content exceeds it.\r\n\t\tmaxHeight: null,\r\n\r\n\t\t// @option autoPan: Boolean = true\r\n\t\t// Set it to `false` if you don't want the map to do panning animation\r\n\t\t// to fit the opened popup.\r\n\t\tautoPan: true,\r\n\r\n\t\t// @option autoPanPaddingTopLeft: Point = null\r\n\t\t// The margin between the popup and the top left corner of the map\r\n\t\t// view after autopanning was performed.\r\n\t\tautoPanPaddingTopLeft: null,\r\n\r\n\t\t// @option autoPanPaddingBottomRight: Point = null\r\n\t\t// The margin between the popup and the bottom right corner of the map\r\n\t\t// view after autopanning was performed.\r\n\t\tautoPanPaddingBottomRight: null,\r\n\r\n\t\t// @option autoPanPadding: Point = Point(5, 5)\r\n\t\t// Equivalent of setting both top left and bottom right autopan padding to the same value.\r\n\t\tautoPanPadding: [5, 5],\r\n\r\n\t\t// @option keepInView: Boolean = false\r\n\t\t// Set it to `true` if you want to prevent users from panning the popup\r\n\t\t// off of the screen while it is open.\r\n\t\tkeepInView: false,\r\n\r\n\t\t// @option closeButton: Boolean = true\r\n\t\t// Controls the presence of a close button in the popup.\r\n\t\tcloseButton: true,\r\n\r\n\t\t// @option autoClose: Boolean = true\r\n\t\t// Set it to `false` if you want to override the default behavior of\r\n\t\t// the popup closing when user clicks the map (set globally by\r\n\t\t// the Map's [closePopupOnClick](#map-closepopuponclick) option).\r\n\t\tautoClose: true,\r\n\r\n\t\t// @option className: String = ''\r\n\t\t// A custom CSS class name to assign to the popup.\r\n\t\tclassName: ''\r\n\t},\r\n\r\n\t// @namespace Popup\r\n\t// @method openOn(map: Map): this\r\n\t// Adds the popup to the map and closes the previous one. The same as `map.openPopup(popup)`.\r\n\topenOn: function (map) {\r\n\t\tmap.openPopup(this);\r\n\t\treturn this;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tL.DivOverlay.prototype.onAdd.call(this, map);\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Popup events\r\n\t\t// @event popupopen: PopupEvent\r\n\t\t// Fired when a popup is opened in the map\r\n\t\tmap.fire('popupopen', {popup: this});\r\n\r\n\t\tif (this._source) {\r\n\t\t\t// @namespace Layer\r\n\t\t\t// @section Popup events\r\n\t\t\t// @event popupopen: PopupEvent\r\n\t\t\t// Fired when a popup bound to this layer is opened\r\n\t\t\tthis._source.fire('popupopen', {popup: this}, true);\r\n\t\t\t// For non-path layers, we toggle the popup when clicking\r\n\t\t\t// again the layer, so prevent the map to reopen it.\r\n\t\t\tif (!(this._source instanceof L.Path)) {\r\n\t\t\t\tthis._source.on('preclick', L.DomEvent.stopPropagation);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tL.DivOverlay.prototype.onRemove.call(this, map);\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Popup events\r\n\t\t// @event popupclose: PopupEvent\r\n\t\t// Fired when a popup in the map is closed\r\n\t\tmap.fire('popupclose', {popup: this});\r\n\r\n\t\tif (this._source) {\r\n\t\t\t// @namespace Layer\r\n\t\t\t// @section Popup events\r\n\t\t\t// @event popupclose: PopupEvent\r\n\t\t\t// Fired when a popup bound to this layer is closed\r\n\t\t\tthis._source.fire('popupclose', {popup: this}, true);\r\n\t\t\tif (!(this._source instanceof L.Path)) {\r\n\t\t\t\tthis._source.off('preclick', L.DomEvent.stopPropagation);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\tvar events = L.DivOverlay.prototype.getEvents.call(this);\r\n\r\n\t\tif ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {\r\n\t\t\tevents.preclick = this._close;\r\n\t\t}\r\n\r\n\t\tif (this.options.keepInView) {\r\n\t\t\tevents.moveend = this._adjustPan;\r\n\t\t}\r\n\r\n\t\treturn events;\r\n\t},\r\n\r\n\t_close: function () {\r\n\t\tif (this._map) {\r\n\t\t\tthis._map.closePopup(this);\r\n\t\t}\r\n\t},\r\n\r\n\t_initLayout: function () {\r\n\t\tvar prefix = 'leaflet-popup',\r\n\t\t    container = this._container = L.DomUtil.create('div',\r\n\t\t\tprefix + ' ' + (this.options.className || '') +\r\n\t\t\t' leaflet-zoom-animated');\r\n\r\n\t\tif (this.options.closeButton) {\r\n\t\t\tvar closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container);\r\n\t\t\tcloseButton.href = '#close';\r\n\t\t\tcloseButton.innerHTML = '&#215;';\r\n\r\n\t\t\tL.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);\r\n\t\t}\r\n\r\n\t\tvar wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container);\r\n\t\tthis._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);\r\n\r\n\t\tL.DomEvent\r\n\t\t\t.disableClickPropagation(wrapper)\r\n\t\t\t.disableScrollPropagation(this._contentNode)\r\n\t\t\t.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);\r\n\r\n\t\tthis._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);\r\n\t\tthis._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);\r\n\t},\r\n\r\n\t_updateLayout: function () {\r\n\t\tvar container = this._contentNode,\r\n\t\t    style = container.style;\r\n\r\n\t\tstyle.width = '';\r\n\t\tstyle.whiteSpace = 'nowrap';\r\n\r\n\t\tvar width = container.offsetWidth;\r\n\t\twidth = Math.min(width, this.options.maxWidth);\r\n\t\twidth = Math.max(width, this.options.minWidth);\r\n\r\n\t\tstyle.width = (width + 1) + 'px';\r\n\t\tstyle.whiteSpace = '';\r\n\r\n\t\tstyle.height = '';\r\n\r\n\t\tvar height = container.offsetHeight,\r\n\t\t    maxHeight = this.options.maxHeight,\r\n\t\t    scrolledClass = 'leaflet-popup-scrolled';\r\n\r\n\t\tif (maxHeight && height > maxHeight) {\r\n\t\t\tstyle.height = maxHeight + 'px';\r\n\t\t\tL.DomUtil.addClass(container, scrolledClass);\r\n\t\t} else {\r\n\t\t\tL.DomUtil.removeClass(container, scrolledClass);\r\n\t\t}\r\n\r\n\t\tthis._containerWidth = this._container.offsetWidth;\r\n\t},\r\n\r\n\t_animateZoom: function (e) {\r\n\t\tvar pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center),\r\n\t\t    anchor = this._getAnchor();\r\n\t\tL.DomUtil.setPosition(this._container, pos.add(anchor));\r\n\t},\r\n\r\n\t_adjustPan: function () {\r\n\t\tif (!this.options.autoPan || (this._map._panAnim && this._map._panAnim._inProgress)) { return; }\r\n\r\n\t\tvar map = this._map,\r\n\t\t    marginBottom = parseInt(L.DomUtil.getStyle(this._container, 'marginBottom'), 10) || 0,\r\n\t\t    containerHeight = this._container.offsetHeight + marginBottom,\r\n\t\t    containerWidth = this._containerWidth,\r\n\t\t    layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);\r\n\r\n\t\tlayerPos._add(L.DomUtil.getPosition(this._container));\r\n\r\n\t\tvar containerPos = map.layerPointToContainerPoint(layerPos),\r\n\t\t    padding = L.point(this.options.autoPanPadding),\r\n\t\t    paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),\r\n\t\t    paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),\r\n\t\t    size = map.getSize(),\r\n\t\t    dx = 0,\r\n\t\t    dy = 0;\r\n\r\n\t\tif (containerPos.x + containerWidth + paddingBR.x > size.x) { // right\r\n\t\t\tdx = containerPos.x + containerWidth - size.x + paddingBR.x;\r\n\t\t}\r\n\t\tif (containerPos.x - dx - paddingTL.x < 0) { // left\r\n\t\t\tdx = containerPos.x - paddingTL.x;\r\n\t\t}\r\n\t\tif (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom\r\n\t\t\tdy = containerPos.y + containerHeight - size.y + paddingBR.y;\r\n\t\t}\r\n\t\tif (containerPos.y - dy - paddingTL.y < 0) { // top\r\n\t\t\tdy = containerPos.y - paddingTL.y;\r\n\t\t}\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Popup events\r\n\t\t// @event autopanstart: Event\r\n\t\t// Fired when the map starts autopanning when opening a popup.\r\n\t\tif (dx || dy) {\r\n\t\t\tmap\r\n\t\t\t    .fire('autopanstart')\r\n\t\t\t    .panBy([dx, dy]);\r\n\t\t}\r\n\t},\r\n\r\n\t_onCloseButtonClick: function (e) {\r\n\t\tthis._close();\r\n\t\tL.DomEvent.stop(e);\r\n\t},\r\n\r\n\t_getAnchor: function () {\r\n\t\t// Where should we anchor the popup on the source layer?\r\n\t\treturn L.point(this._source && this._source._getPopupAnchor ? this._source._getPopupAnchor() : [0, 0]);\r\n\t}\r\n\r\n});\r\n\r\n// @namespace Popup\r\n// @factory L.popup(options?: Popup options, source?: Layer)\r\n// Instantiates a `Popup` object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the popup with a reference to the Layer to which it refers.\r\nL.popup = function (options, source) {\r\n\treturn new L.Popup(options, source);\r\n};\r\n\r\n\r\n/* @namespace Map\r\n * @section Interaction Options\r\n * @option closePopupOnClick: Boolean = true\r\n * Set it to `false` if you don't want popups to close when user clicks the map.\r\n */\r\nL.Map.mergeOptions({\r\n\tclosePopupOnClick: true\r\n});\r\n\r\n\r\n// @namespace Map\r\n// @section Methods for Layers and Controls\r\nL.Map.include({\r\n\t// @method openPopup(popup: Popup): this\r\n\t// Opens the specified popup while closing the previously opened (to make sure only one is opened at one time for usability).\r\n\t// @alternative\r\n\t// @method openPopup(content: String|HTMLElement, latlng: LatLng, options?: Popup options): this\r\n\t// Creates a popup with the specified content and options and opens it in the given point on a map.\r\n\topenPopup: function (popup, latlng, options) {\r\n\t\tif (!(popup instanceof L.Popup)) {\r\n\t\t\tpopup = new L.Popup(options).setContent(popup);\r\n\t\t}\r\n\r\n\t\tif (latlng) {\r\n\t\t\tpopup.setLatLng(latlng);\r\n\t\t}\r\n\r\n\t\tif (this.hasLayer(popup)) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tif (this._popup && this._popup.options.autoClose) {\r\n\t\t\tthis.closePopup();\r\n\t\t}\r\n\r\n\t\tthis._popup = popup;\r\n\t\treturn this.addLayer(popup);\r\n\t},\r\n\r\n\t// @method closePopup(popup?: Popup): this\r\n\t// Closes the popup previously opened with [openPopup](#map-openpopup) (or the given one).\r\n\tclosePopup: function (popup) {\r\n\t\tif (!popup || popup === this._popup) {\r\n\t\t\tpopup = this._popup;\r\n\t\t\tthis._popup = null;\r\n\t\t}\r\n\t\tif (popup) {\r\n\t\t\tthis.removeLayer(popup);\r\n\t\t}\r\n\t\treturn this;\r\n\t}\r\n});\r\n\r\n/*\r\n * @namespace Layer\r\n * @section Popup methods example\r\n *\r\n * All layers share a set of methods convenient for binding popups to it.\r\n *\r\n * ```js\r\n * var layer = L.Polygon(latlngs).bindPopup('Hi There!').addTo(map);\r\n * layer.openPopup();\r\n * layer.closePopup();\r\n * ```\r\n *\r\n * Popups will also be automatically opened when the layer is clicked on and closed when the layer is removed from the map or another popup is opened.\r\n */\r\n\r\n// @section Popup methods\r\nL.Layer.include({\r\n\r\n\t// @method bindPopup(content: String|HTMLElement|Function|Popup, options?: Popup options): this\r\n\t// Binds a popup to the layer with the passed `content` and sets up the\r\n\t// neccessary event listeners. If a `Function` is passed it will receive\r\n\t// the layer as the first argument and should return a `String` or `HTMLElement`.\r\n\tbindPopup: function (content, options) {\r\n\r\n\t\tif (content instanceof L.Popup) {\r\n\t\t\tL.setOptions(content, options);\r\n\t\t\tthis._popup = content;\r\n\t\t\tcontent._source = this;\r\n\t\t} else {\r\n\t\t\tif (!this._popup || options) {\r\n\t\t\t\tthis._popup = new L.Popup(options, this);\r\n\t\t\t}\r\n\t\t\tthis._popup.setContent(content);\r\n\t\t}\r\n\r\n\t\tif (!this._popupHandlersAdded) {\r\n\t\t\tthis.on({\r\n\t\t\t\tclick: this._openPopup,\r\n\t\t\t\tremove: this.closePopup,\r\n\t\t\t\tmove: this._movePopup\r\n\t\t\t});\r\n\t\t\tthis._popupHandlersAdded = true;\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method unbindPopup(): this\r\n\t// Removes the popup previously bound with `bindPopup`.\r\n\tunbindPopup: function () {\r\n\t\tif (this._popup) {\r\n\t\t\tthis.off({\r\n\t\t\t\tclick: this._openPopup,\r\n\t\t\t\tremove: this.closePopup,\r\n\t\t\t\tmove: this._movePopup\r\n\t\t\t});\r\n\t\t\tthis._popupHandlersAdded = false;\r\n\t\t\tthis._popup = null;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method openPopup(latlng?: LatLng): this\r\n\t// Opens the bound popup at the specificed `latlng` or at the default popup anchor if no `latlng` is passed.\r\n\topenPopup: function (layer, latlng) {\r\n\t\tif (!(layer instanceof L.Layer)) {\r\n\t\t\tlatlng = layer;\r\n\t\t\tlayer = this;\r\n\t\t}\r\n\r\n\t\tif (layer instanceof L.FeatureGroup) {\r\n\t\t\tfor (var id in this._layers) {\r\n\t\t\t\tlayer = this._layers[id];\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (!latlng) {\r\n\t\t\tlatlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();\r\n\t\t}\r\n\r\n\t\tif (this._popup && this._map) {\r\n\t\t\t// set popup source to this layer\r\n\t\t\tthis._popup._source = layer;\r\n\r\n\t\t\t// update the popup (content, layout, ect...)\r\n\t\t\tthis._popup.update();\r\n\r\n\t\t\t// open the popup on the map\r\n\t\t\tthis._map.openPopup(this._popup, latlng);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method closePopup(): this\r\n\t// Closes the popup bound to this layer if it is open.\r\n\tclosePopup: function () {\r\n\t\tif (this._popup) {\r\n\t\t\tthis._popup._close();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method togglePopup(): this\r\n\t// Opens or closes the popup bound to this layer depending on its current state.\r\n\ttogglePopup: function (target) {\r\n\t\tif (this._popup) {\r\n\t\t\tif (this._popup._map) {\r\n\t\t\t\tthis.closePopup();\r\n\t\t\t} else {\r\n\t\t\t\tthis.openPopup(target);\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method isPopupOpen(): boolean\r\n\t// Returns `true` if the popup bound to this layer is currently open.\r\n\tisPopupOpen: function () {\r\n\t\treturn (this._popup ? this._popup.isOpen() : false);\r\n\t},\r\n\r\n\t// @method setPopupContent(content: String|HTMLElement|Popup): this\r\n\t// Sets the content of the popup bound to this layer.\r\n\tsetPopupContent: function (content) {\r\n\t\tif (this._popup) {\r\n\t\t\tthis._popup.setContent(content);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getPopup(): Popup\r\n\t// Returns the popup bound to this layer.\r\n\tgetPopup: function () {\r\n\t\treturn this._popup;\r\n\t},\r\n\r\n\t_openPopup: function (e) {\r\n\t\tvar layer = e.layer || e.target;\r\n\r\n\t\tif (!this._popup) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (!this._map) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\t// prevent map click\r\n\t\tL.DomEvent.stop(e);\r\n\r\n\t\t// if this inherits from Path its a vector and we can just\r\n\t\t// open the popup at the new location\r\n\t\tif (layer instanceof L.Path) {\r\n\t\t\tthis.openPopup(e.layer || e.target, e.latlng);\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\t// otherwise treat it like a marker and figure out\r\n\t\t// if we should toggle it open/closed\r\n\t\tif (this._map.hasLayer(this._popup) && this._popup._source === layer) {\r\n\t\t\tthis.closePopup();\r\n\t\t} else {\r\n\t\t\tthis.openPopup(layer, e.latlng);\r\n\t\t}\r\n\t},\r\n\r\n\t_movePopup: function (e) {\r\n\t\tthis._popup.setLatLng(e.latlng);\r\n\t}\r\n});\r\n\n\n\n/*\n * @class Tooltip\n * @inherits DivOverlay\n * @aka L.Tooltip\n * Used to display small texts on top of map layers.\n *\n * @example\n *\n * ```js\n * marker.bindTooltip(\"my tooltip text\").openTooltip();\n * ```\n * Note about tooltip offset. Leaflet takes two options in consideration\n * for computing tooltip offseting:\n * - the `offset` Tooltip option: it defaults to [0, 0], and it's specific to one tooltip.\n *   Add a positive x offset to move the tooltip to the right, and a positive y offset to\n *   move it to the bottom. Negatives will move to the left and top.\n * - the `tooltipAnchor` Icon option: this will only be considered for Marker. You\n *   should adapt this value if you use a custom icon.\n */\n\n\n// @namespace Tooltip\nL.Tooltip = L.DivOverlay.extend({\n\n\t// @section\n\t// @aka Tooltip options\n\toptions: {\n\t\t// @option pane: String = 'tooltipPane'\n\t\t// `Map pane` where the tooltip will be added.\n\t\tpane: 'tooltipPane',\n\n\t\t// @option offset: Point = Point(0, 0)\n\t\t// Optional offset of the tooltip position.\n\t\toffset: [0, 0],\n\n\t\t// @option direction: String = 'auto'\n\t\t// Direction where to open the tooltip. Possible values are: `right`, `left`,\n\t\t// `top`, `bottom`, `center`, `auto`.\n\t\t// `auto` will dynamicaly switch between `right` and `left` according to the tooltip\n\t\t// position on the map.\n\t\tdirection: 'auto',\n\n\t\t// @option permanent: Boolean = false\n\t\t// Whether to open the tooltip permanently or only on mouseover.\n\t\tpermanent: false,\n\n\t\t// @option sticky: Boolean = false\n\t\t// If true, the tooltip will follow the mouse instead of being fixed at the feature center.\n\t\tsticky: false,\n\n\t\t// @option interactive: Boolean = false\n\t\t// If true, the tooltip will listen to the feature events.\n\t\tinteractive: false,\n\n\t\t// @option opacity: Number = 0.9\n\t\t// Tooltip container opacity.\n\t\topacity: 0.9\n\t},\n\n\tonAdd: function (map) {\n\t\tL.DivOverlay.prototype.onAdd.call(this, map);\n\t\tthis.setOpacity(this.options.opacity);\n\n\t\t// @namespace Map\n\t\t// @section Tooltip events\n\t\t// @event tooltipopen: TooltipEvent\n\t\t// Fired when a tooltip is opened in the map.\n\t\tmap.fire('tooltipopen', {tooltip: this});\n\n\t\tif (this._source) {\n\t\t\t// @namespace Layer\n\t\t\t// @section Tooltip events\n\t\t\t// @event tooltipopen: TooltipEvent\n\t\t\t// Fired when a tooltip bound to this layer is opened.\n\t\t\tthis._source.fire('tooltipopen', {tooltip: this}, true);\n\t\t}\n\t},\n\n\tonRemove: function (map) {\n\t\tL.DivOverlay.prototype.onRemove.call(this, map);\n\n\t\t// @namespace Map\n\t\t// @section Tooltip events\n\t\t// @event tooltipclose: TooltipEvent\n\t\t// Fired when a tooltip in the map is closed.\n\t\tmap.fire('tooltipclose', {tooltip: this});\n\n\t\tif (this._source) {\n\t\t\t// @namespace Layer\n\t\t\t// @section Tooltip events\n\t\t\t// @event tooltipclose: TooltipEvent\n\t\t\t// Fired when a tooltip bound to this layer is closed.\n\t\t\tthis._source.fire('tooltipclose', {tooltip: this}, true);\n\t\t}\n\t},\n\n\tgetEvents: function () {\n\t\tvar events = L.DivOverlay.prototype.getEvents.call(this);\n\n\t\tif (L.Browser.touch && !this.options.permanent) {\n\t\t\tevents.preclick = this._close;\n\t\t}\n\n\t\treturn events;\n\t},\n\n\t_close: function () {\n\t\tif (this._map) {\n\t\t\tthis._map.closeTooltip(this);\n\t\t}\n\t},\n\n\t_initLayout: function () {\n\t\tvar prefix = 'leaflet-tooltip',\n\t\t    className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');\n\n\t\tthis._contentNode = this._container = L.DomUtil.create('div', className);\n\t},\n\n\t_updateLayout: function () {},\n\n\t_adjustPan: function () {},\n\n\t_setPosition: function (pos) {\n\t\tvar map = this._map,\n\t\t    container = this._container,\n\t\t    centerPoint = map.latLngToContainerPoint(map.getCenter()),\n\t\t    tooltipPoint = map.layerPointToContainerPoint(pos),\n\t\t    direction = this.options.direction,\n\t\t    tooltipWidth = container.offsetWidth,\n\t\t    tooltipHeight = container.offsetHeight,\n\t\t    offset = L.point(this.options.offset),\n\t\t    anchor = this._getAnchor();\n\n\t\tif (direction === 'top') {\n\t\t\tpos = pos.add(L.point(-tooltipWidth / 2 + offset.x, -tooltipHeight + offset.y + anchor.y, true));\n\t\t} else if (direction === 'bottom') {\n\t\t\tpos = pos.subtract(L.point(tooltipWidth / 2 - offset.x, -offset.y, true));\n\t\t} else if (direction === 'center') {\n\t\t\tpos = pos.subtract(L.point(tooltipWidth / 2 + offset.x, tooltipHeight / 2 - anchor.y + offset.y, true));\n\t\t} else if (direction === 'right' || direction === 'auto' && tooltipPoint.x < centerPoint.x) {\n\t\t\tdirection = 'right';\n\t\t\tpos = pos.add(L.point(offset.x + anchor.x, anchor.y - tooltipHeight / 2 + offset.y, true));\n\t\t} else {\n\t\t\tdirection = 'left';\n\t\t\tpos = pos.subtract(L.point(tooltipWidth + anchor.x - offset.x, tooltipHeight / 2 - anchor.y - offset.y, true));\n\t\t}\n\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-right');\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-left');\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-top');\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-bottom');\n\t\tL.DomUtil.addClass(container, 'leaflet-tooltip-' + direction);\n\t\tL.DomUtil.setPosition(container, pos);\n\t},\n\n\t_updatePosition: function () {\n\t\tvar pos = this._map.latLngToLayerPoint(this._latlng);\n\t\tthis._setPosition(pos);\n\t},\n\n\tsetOpacity: function (opacity) {\n\t\tthis.options.opacity = opacity;\n\n\t\tif (this._container) {\n\t\t\tL.DomUtil.setOpacity(this._container, opacity);\n\t\t}\n\t},\n\n\t_animateZoom: function (e) {\n\t\tvar pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);\n\t\tthis._setPosition(pos);\n\t},\n\n\t_getAnchor: function () {\n\t\t// Where should we anchor the tooltip on the source layer?\n\t\treturn L.point(this._source && this._source._getTooltipAnchor && !this.options.sticky ? this._source._getTooltipAnchor() : [0, 0]);\n\t}\n\n});\n\n// @namespace Tooltip\n// @factory L.tooltip(options?: Tooltip options, source?: Layer)\n// Instantiates a Tooltip object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the tooltip with a reference to the Layer to which it refers.\nL.tooltip = function (options, source) {\n\treturn new L.Tooltip(options, source);\n};\n\n// @namespace Map\n// @section Methods for Layers and Controls\nL.Map.include({\n\n\t// @method openTooltip(tooltip: Tooltip): this\n\t// Opens the specified tooltip.\n\t// @alternative\n\t// @method openTooltip(content: String|HTMLElement, latlng: LatLng, options?: Tooltip options): this\n\t// Creates a tooltip with the specified content and options and open it.\n\topenTooltip: function (tooltip, latlng, options) {\n\t\tif (!(tooltip instanceof L.Tooltip)) {\n\t\t\ttooltip = new L.Tooltip(options).setContent(tooltip);\n\t\t}\n\n\t\tif (latlng) {\n\t\t\ttooltip.setLatLng(latlng);\n\t\t}\n\n\t\tif (this.hasLayer(tooltip)) {\n\t\t\treturn this;\n\t\t}\n\n\t\treturn this.addLayer(tooltip);\n\t},\n\n\t// @method closeTooltip(tooltip?: Tooltip): this\n\t// Closes the tooltip given as parameter.\n\tcloseTooltip: function (tooltip) {\n\t\tif (tooltip) {\n\t\t\tthis.removeLayer(tooltip);\n\t\t}\n\t\treturn this;\n\t}\n\n});\n\n/*\n * @namespace Layer\n * @section Tooltip methods example\n *\n * All layers share a set of methods convenient for binding tooltips to it.\n *\n * ```js\n * var layer = L.Polygon(latlngs).bindTooltip('Hi There!').addTo(map);\n * layer.openTooltip();\n * layer.closeTooltip();\n * ```\n */\n\n// @section Tooltip methods\nL.Layer.include({\n\n\t// @method bindTooltip(content: String|HTMLElement|Function|Tooltip, options?: Tooltip options): this\n\t// Binds a tooltip to the layer with the passed `content` and sets up the\n\t// neccessary event listeners. If a `Function` is passed it will receive\n\t// the layer as the first argument and should return a `String` or `HTMLElement`.\n\tbindTooltip: function (content, options) {\n\n\t\tif (content instanceof L.Tooltip) {\n\t\t\tL.setOptions(content, options);\n\t\t\tthis._tooltip = content;\n\t\t\tcontent._source = this;\n\t\t} else {\n\t\t\tif (!this._tooltip || options) {\n\t\t\t\tthis._tooltip = L.tooltip(options, this);\n\t\t\t}\n\t\t\tthis._tooltip.setContent(content);\n\n\t\t}\n\n\t\tthis._initTooltipInteractions();\n\n\t\tif (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) {\n\t\t\tthis.openTooltip();\n\t\t}\n\n\t\treturn this;\n\t},\n\n\t// @method unbindTooltip(): this\n\t// Removes the tooltip previously bound with `bindTooltip`.\n\tunbindTooltip: function () {\n\t\tif (this._tooltip) {\n\t\t\tthis._initTooltipInteractions(true);\n\t\t\tthis.closeTooltip();\n\t\t\tthis._tooltip = null;\n\t\t}\n\t\treturn this;\n\t},\n\n\t_initTooltipInteractions: function (remove) {\n\t\tif (!remove && this._tooltipHandlersAdded) { return; }\n\t\tvar onOff = remove ? 'off' : 'on',\n\t\t    events = {\n\t\t\tremove: this.closeTooltip,\n\t\t\tmove: this._moveTooltip\n\t\t    };\n\t\tif (!this._tooltip.options.permanent) {\n\t\t\tevents.mouseover = this._openTooltip;\n\t\t\tevents.mouseout = this.closeTooltip;\n\t\t\tif (this._tooltip.options.sticky) {\n\t\t\t\tevents.mousemove = this._moveTooltip;\n\t\t\t}\n\t\t\tif (L.Browser.touch) {\n\t\t\t\tevents.click = this._openTooltip;\n\t\t\t}\n\t\t} else {\n\t\t\tevents.add = this._openTooltip;\n\t\t}\n\t\tthis[onOff](events);\n\t\tthis._tooltipHandlersAdded = !remove;\n\t},\n\n\t// @method openTooltip(latlng?: LatLng): this\n\t// Opens the bound tooltip at the specificed `latlng` or at the default tooltip anchor if no `latlng` is passed.\n\topenTooltip: function (layer, latlng) {\n\t\tif (!(layer instanceof L.Layer)) {\n\t\t\tlatlng = layer;\n\t\t\tlayer = this;\n\t\t}\n\n\t\tif (layer instanceof L.FeatureGroup) {\n\t\t\tfor (var id in this._layers) {\n\t\t\t\tlayer = this._layers[id];\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\tif (!latlng) {\n\t\t\tlatlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();\n\t\t}\n\n\t\tif (this._tooltip && this._map) {\n\n\t\t\t// set tooltip source to this layer\n\t\t\tthis._tooltip._source = layer;\n\n\t\t\t// update the tooltip (content, layout, ect...)\n\t\t\tthis._tooltip.update();\n\n\t\t\t// open the tooltip on the map\n\t\t\tthis._map.openTooltip(this._tooltip, latlng);\n\n\t\t\t// Tooltip container may not be defined if not permanent and never\n\t\t\t// opened.\n\t\t\tif (this._tooltip.options.interactive && this._tooltip._container) {\n\t\t\t\tL.DomUtil.addClass(this._tooltip._container, 'leaflet-clickable');\n\t\t\t\tthis.addInteractiveTarget(this._tooltip._container);\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\t// @method closeTooltip(): this\n\t// Closes the tooltip bound to this layer if it is open.\n\tcloseTooltip: function () {\n\t\tif (this._tooltip) {\n\t\t\tthis._tooltip._close();\n\t\t\tif (this._tooltip.options.interactive && this._tooltip._container) {\n\t\t\t\tL.DomUtil.removeClass(this._tooltip._container, 'leaflet-clickable');\n\t\t\t\tthis.removeInteractiveTarget(this._tooltip._container);\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method toggleTooltip(): this\n\t// Opens or closes the tooltip bound to this layer depending on its current state.\n\ttoggleTooltip: function (target) {\n\t\tif (this._tooltip) {\n\t\t\tif (this._tooltip._map) {\n\t\t\t\tthis.closeTooltip();\n\t\t\t} else {\n\t\t\t\tthis.openTooltip(target);\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method isTooltipOpen(): boolean\n\t// Returns `true` if the tooltip bound to this layer is currently open.\n\tisTooltipOpen: function () {\n\t\treturn this._tooltip.isOpen();\n\t},\n\n\t// @method setTooltipContent(content: String|HTMLElement|Tooltip): this\n\t// Sets the content of the tooltip bound to this layer.\n\tsetTooltipContent: function (content) {\n\t\tif (this._tooltip) {\n\t\t\tthis._tooltip.setContent(content);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method getTooltip(): Tooltip\n\t// Returns the tooltip bound to this layer.\n\tgetTooltip: function () {\n\t\treturn this._tooltip;\n\t},\n\n\t_openTooltip: function (e) {\n\t\tvar layer = e.layer || e.target;\n\n\t\tif (!this._tooltip || !this._map) {\n\t\t\treturn;\n\t\t}\n\t\tthis.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined);\n\t},\n\n\t_moveTooltip: function (e) {\n\t\tvar latlng = e.latlng, containerPoint, layerPoint;\n\t\tif (this._tooltip.options.sticky && e.originalEvent) {\n\t\t\tcontainerPoint = this._map.mouseEventToContainerPoint(e.originalEvent);\n\t\t\tlayerPoint = this._map.containerPointToLayerPoint(containerPoint);\n\t\t\tlatlng = this._map.layerPointToLatLng(layerPoint);\n\t\t}\n\t\tthis._tooltip.setLatLng(latlng);\n\t}\n});\n\n\n\n/*\r\n * @class LayerGroup\r\n * @aka L.LayerGroup\r\n * @inherits Layer\r\n *\r\n * Used to group several layers and handle them as one. If you add it to the map,\r\n * any layers added or removed from the group will be added/removed on the map as\r\n * well. Extends `Layer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.layerGroup([marker1, marker2])\r\n * \t.addLayer(polyline)\r\n * \t.addTo(map);\r\n * ```\r\n */\r\n\r\nL.LayerGroup = L.Layer.extend({\r\n\r\n\tinitialize: function (layers) {\r\n\t\tthis._layers = {};\r\n\r\n\t\tvar i, len;\r\n\r\n\t\tif (layers) {\r\n\t\t\tfor (i = 0, len = layers.length; i < len; i++) {\r\n\t\t\t\tthis.addLayer(layers[i]);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t// @method addLayer(layer: Layer): this\r\n\t// Adds the given layer to the group.\r\n\taddLayer: function (layer) {\r\n\t\tvar id = this.getLayerId(layer);\r\n\r\n\t\tthis._layers[id] = layer;\r\n\r\n\t\tif (this._map) {\r\n\t\t\tthis._map.addLayer(layer);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeLayer(layer: Layer): this\r\n\t// Removes the given layer from the group.\r\n\t// @alternative\r\n\t// @method removeLayer(id: Number): this\r\n\t// Removes the layer with the given internal ID from the group.\r\n\tremoveLayer: function (layer) {\r\n\t\tvar id = layer in this._layers ? layer : this.getLayerId(layer);\r\n\r\n\t\tif (this._map && this._layers[id]) {\r\n\t\t\tthis._map.removeLayer(this._layers[id]);\r\n\t\t}\r\n\r\n\t\tdelete this._layers[id];\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method hasLayer(layer: Layer): Boolean\r\n\t// Returns `true` if the given layer is currently added to the group.\r\n\thasLayer: function (layer) {\r\n\t\treturn !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers);\r\n\t},\r\n\r\n\t// @method clearLayers(): this\r\n\t// Removes all the layers from the group.\r\n\tclearLayers: function () {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tthis.removeLayer(this._layers[i]);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method invoke(methodName: String, …): this\r\n\t// Calls `methodName` on every layer contained in this group, passing any\r\n\t// additional parameters. Has no effect if the layers contained do not\r\n\t// implement `methodName`.\r\n\tinvoke: function (methodName) {\r\n\t\tvar args = Array.prototype.slice.call(arguments, 1),\r\n\t\t    i, layer;\r\n\r\n\t\tfor (i in this._layers) {\r\n\t\t\tlayer = this._layers[i];\r\n\r\n\t\t\tif (layer[methodName]) {\r\n\t\t\t\tlayer[methodName].apply(layer, args);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tmap.addLayer(this._layers[i]);\r\n\t\t}\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tmap.removeLayer(this._layers[i]);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method eachLayer(fn: Function, context?: Object): this\r\n\t// Iterates over the layers of the group, optionally specifying context of the iterator function.\r\n\t// ```js\r\n\t// group.eachLayer(function (layer) {\r\n\t// \tlayer.bindPopup('Hello');\r\n\t// });\r\n\t// ```\r\n\teachLayer: function (method, context) {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tmethod.call(context, this._layers[i]);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getLayer(id: Number): Layer\r\n\t// Returns the layer with the given internal ID.\r\n\tgetLayer: function (id) {\r\n\t\treturn this._layers[id];\r\n\t},\r\n\r\n\t// @method getLayers(): Layer[]\r\n\t// Returns an array of all the layers added to the group.\r\n\tgetLayers: function () {\r\n\t\tvar layers = [];\r\n\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tlayers.push(this._layers[i]);\r\n\t\t}\r\n\t\treturn layers;\r\n\t},\r\n\r\n\t// @method setZIndex(zIndex: Number): this\r\n\t// Calls `setZIndex` on every layer contained in this group, passing the z-index.\r\n\tsetZIndex: function (zIndex) {\r\n\t\treturn this.invoke('setZIndex', zIndex);\r\n\t},\r\n\r\n\t// @method getLayerId(layer: Layer): Number\r\n\t// Returns the internal ID for a layer\r\n\tgetLayerId: function (layer) {\r\n\t\treturn L.stamp(layer);\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.layerGroup(layers: Layer[])\r\n// Create a layer group, optionally given an initial set of layers.\r\nL.layerGroup = function (layers) {\r\n\treturn new L.LayerGroup(layers);\r\n};\r\n\n\n\n/*\r\n * @class FeatureGroup\r\n * @aka L.FeatureGroup\r\n * @inherits LayerGroup\r\n *\r\n * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers:\r\n *  * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip))\r\n *  * Events are propagated to the `FeatureGroup`, so if the group has an event\r\n * handler, it will handle events from any of the layers. This includes mouse events\r\n * and custom events.\r\n *  * Has `layeradd` and `layerremove` events\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.featureGroup([marker1, marker2, polyline])\r\n * \t.bindPopup('Hello world!')\r\n * \t.on('click', function() { alert('Clicked on a member of the group!'); })\r\n * \t.addTo(map);\r\n * ```\r\n */\r\n\r\nL.FeatureGroup = L.LayerGroup.extend({\r\n\r\n\taddLayer: function (layer) {\r\n\t\tif (this.hasLayer(layer)) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tlayer.addEventParent(this);\r\n\r\n\t\tL.LayerGroup.prototype.addLayer.call(this, layer);\r\n\r\n\t\t// @event layeradd: LayerEvent\r\n\t\t// Fired when a layer is added to this `FeatureGroup`\r\n\t\treturn this.fire('layeradd', {layer: layer});\r\n\t},\r\n\r\n\tremoveLayer: function (layer) {\r\n\t\tif (!this.hasLayer(layer)) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\t\tif (layer in this._layers) {\r\n\t\t\tlayer = this._layers[layer];\r\n\t\t}\r\n\r\n\t\tlayer.removeEventParent(this);\r\n\r\n\t\tL.LayerGroup.prototype.removeLayer.call(this, layer);\r\n\r\n\t\t// @event layerremove: LayerEvent\r\n\t\t// Fired when a layer is removed from this `FeatureGroup`\r\n\t\treturn this.fire('layerremove', {layer: layer});\r\n\t},\r\n\r\n\t// @method setStyle(style: Path options): this\r\n\t// Sets the given path options to each layer of the group that has a `setStyle` method.\r\n\tsetStyle: function (style) {\r\n\t\treturn this.invoke('setStyle', style);\r\n\t},\r\n\r\n\t// @method bringToFront(): this\r\n\t// Brings the layer group to the top of all other layers\r\n\tbringToFront: function () {\r\n\t\treturn this.invoke('bringToFront');\r\n\t},\r\n\r\n\t// @method bringToBack(): this\r\n\t// Brings the layer group to the top of all other layers\r\n\tbringToBack: function () {\r\n\t\treturn this.invoke('bringToBack');\r\n\t},\r\n\r\n\t// @method getBounds(): LatLngBounds\r\n\t// Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children).\r\n\tgetBounds: function () {\r\n\t\tvar bounds = new L.LatLngBounds();\r\n\r\n\t\tfor (var id in this._layers) {\r\n\t\t\tvar layer = this._layers[id];\r\n\t\t\tbounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());\r\n\t\t}\r\n\t\treturn bounds;\r\n\t}\r\n});\r\n\r\n// @factory L.featureGroup(layers: Layer[])\r\n// Create a feature group, optionally given an initial set of layers.\r\nL.featureGroup = function (layers) {\r\n\treturn new L.FeatureGroup(layers);\r\n};\r\n\n\n\n/*\n * @class Renderer\n * @inherits Layer\n * @aka L.Renderer\n *\n * Base class for vector renderer implementations (`SVG`, `Canvas`). Handles the\n * DOM container of the renderer, its bounds, and its zoom animation.\n *\n * A `Renderer` works as an implicit layer group for all `Path`s - the renderer\n * itself can be added or removed to the map. All paths use a renderer, which can\n * be implicit (the map will decide the type of renderer and use it automatically)\n * or explicit (using the [`renderer`](#path-renderer) option of the path).\n *\n * Do not use this class directly, use `SVG` and `Canvas` instead.\n *\n * @event update: Event\n * Fired when the renderer updates its bounds, center and zoom, for example when\n * its map has moved\n */\n\nL.Renderer = L.Layer.extend({\n\n\t// @section\n\t// @aka Renderer options\n\toptions: {\n\t\t// @option padding: Number = 0.1\n\t\t// How much to extend the clip area around the map view (relative to its size)\n\t\t// e.g. 0.1 would be 10% of map view in each direction\n\t\tpadding: 0.1\n\t},\n\n\tinitialize: function (options) {\n\t\tL.setOptions(this, options);\n\t\tL.stamp(this);\n\t\tthis._layers = this._layers || {};\n\t},\n\n\tonAdd: function () {\n\t\tif (!this._container) {\n\t\t\tthis._initContainer(); // defined by renderer implementations\n\n\t\t\tif (this._zoomAnimated) {\n\t\t\t\tL.DomUtil.addClass(this._container, 'leaflet-zoom-animated');\n\t\t\t}\n\t\t}\n\n\t\tthis.getPane().appendChild(this._container);\n\t\tthis._update();\n\t\tthis.on('update', this._updatePaths, this);\n\t},\n\n\tonRemove: function () {\n\t\tL.DomUtil.remove(this._container);\n\t\tthis.off('update', this._updatePaths, this);\n\t},\n\n\tgetEvents: function () {\n\t\tvar events = {\n\t\t\tviewreset: this._reset,\n\t\t\tzoom: this._onZoom,\n\t\t\tmoveend: this._update,\n\t\t\tzoomend: this._onZoomEnd\n\t\t};\n\t\tif (this._zoomAnimated) {\n\t\t\tevents.zoomanim = this._onAnimZoom;\n\t\t}\n\t\treturn events;\n\t},\n\n\t_onAnimZoom: function (ev) {\n\t\tthis._updateTransform(ev.center, ev.zoom);\n\t},\n\n\t_onZoom: function () {\n\t\tthis._updateTransform(this._map.getCenter(), this._map.getZoom());\n\t},\n\n\t_updateTransform: function (center, zoom) {\n\t\tvar scale = this._map.getZoomScale(zoom, this._zoom),\n\t\t    position = L.DomUtil.getPosition(this._container),\n\t\t    viewHalf = this._map.getSize().multiplyBy(0.5 + this.options.padding),\n\t\t    currentCenterPoint = this._map.project(this._center, zoom),\n\t\t    destCenterPoint = this._map.project(center, zoom),\n\t\t    centerOffset = destCenterPoint.subtract(currentCenterPoint),\n\n\t\t    topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);\n\n\t\tif (L.Browser.any3d) {\n\t\t\tL.DomUtil.setTransform(this._container, topLeftOffset, scale);\n\t\t} else {\n\t\t\tL.DomUtil.setPosition(this._container, topLeftOffset);\n\t\t}\n\t},\n\n\t_reset: function () {\n\t\tthis._update();\n\t\tthis._updateTransform(this._center, this._zoom);\n\n\t\tfor (var id in this._layers) {\n\t\t\tthis._layers[id]._reset();\n\t\t}\n\t},\n\n\t_onZoomEnd: function () {\n\t\tfor (var id in this._layers) {\n\t\t\tthis._layers[id]._project();\n\t\t}\n\t},\n\n\t_updatePaths: function () {\n\t\tfor (var id in this._layers) {\n\t\t\tthis._layers[id]._update();\n\t\t}\n\t},\n\n\t_update: function () {\n\t\t// Update pixel bounds of renderer container (for positioning/sizing/clipping later)\n\t\t// Subclasses are responsible of firing the 'update' event.\n\t\tvar p = this.options.padding,\n\t\t    size = this._map.getSize(),\n\t\t    min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round();\n\n\t\tthis._bounds = new L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());\n\n\t\tthis._center = this._map.getCenter();\n\t\tthis._zoom = this._map.getZoom();\n\t}\n});\n\n\nL.Map.include({\n\t// @namespace Map; @method getRenderer(layer: Path): Renderer\n\t// Returns the instance of `Renderer` that should be used to render the given\n\t// `Path`. It will ensure that the `renderer` options of the map and paths\n\t// are respected, and that the renderers do exist on the map.\n\tgetRenderer: function (layer) {\n\t\t// @namespace Path; @option renderer: Renderer\n\t\t// Use this specific instance of `Renderer` for this path. Takes\n\t\t// precedence over the map's [default renderer](#map-renderer).\n\t\tvar renderer = layer.options.renderer || this._getPaneRenderer(layer.options.pane) || this.options.renderer || this._renderer;\n\n\t\tif (!renderer) {\n\t\t\t// @namespace Map; @option preferCanvas: Boolean = false\n\t\t\t// Whether `Path`s should be rendered on a `Canvas` renderer.\n\t\t\t// By default, all `Path`s are rendered in a `SVG` renderer.\n\t\t\trenderer = this._renderer = (this.options.preferCanvas && L.canvas()) || L.svg();\n\t\t}\n\n\t\tif (!this.hasLayer(renderer)) {\n\t\t\tthis.addLayer(renderer);\n\t\t}\n\t\treturn renderer;\n\t},\n\n\t_getPaneRenderer: function (name) {\n\t\tif (name === 'overlayPane' || name === undefined) {\n\t\t\treturn false;\n\t\t}\n\n\t\tvar renderer = this._paneRenderers[name];\n\t\tif (renderer === undefined) {\n\t\t\trenderer = (L.SVG && L.svg({pane: name})) || (L.Canvas && L.canvas({pane: name}));\n\t\t\tthis._paneRenderers[name] = renderer;\n\t\t}\n\t\treturn renderer;\n\t}\n});\n\n\n\n/*\n * @class Path\n * @aka L.Path\n * @inherits Interactive layer\n *\n * An abstract class that contains options and constants shared between vector\n * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`.\n */\n\nL.Path = L.Layer.extend({\n\n\t// @section\n\t// @aka Path options\n\toptions: {\n\t\t// @option stroke: Boolean = true\n\t\t// Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles.\n\t\tstroke: true,\n\n\t\t// @option color: String = '#3388ff'\n\t\t// Stroke color\n\t\tcolor: '#3388ff',\n\n\t\t// @option weight: Number = 3\n\t\t// Stroke width in pixels\n\t\tweight: 3,\n\n\t\t// @option opacity: Number = 1.0\n\t\t// Stroke opacity\n\t\topacity: 1,\n\n\t\t// @option lineCap: String= 'round'\n\t\t// A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke.\n\t\tlineCap: 'round',\n\n\t\t// @option lineJoin: String = 'round'\n\t\t// A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke.\n\t\tlineJoin: 'round',\n\n\t\t// @option dashArray: String = null\n\t\t// A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).\n\t\tdashArray: null,\n\n\t\t// @option dashOffset: String = null\n\t\t// A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).\n\t\tdashOffset: null,\n\n\t\t// @option fill: Boolean = depends\n\t\t// Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles.\n\t\tfill: false,\n\n\t\t// @option fillColor: String = *\n\t\t// Fill color. Defaults to the value of the [`color`](#path-color) option\n\t\tfillColor: null,\n\n\t\t// @option fillOpacity: Number = 0.2\n\t\t// Fill opacity.\n\t\tfillOpacity: 0.2,\n\n\t\t// @option fillRule: String = 'evenodd'\n\t\t// A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined.\n\t\tfillRule: 'evenodd',\n\n\t\t// className: '',\n\n\t\t// Option inherited from \"Interactive layer\" abstract class\n\t\tinteractive: true\n\t},\n\n\tbeforeAdd: function (map) {\n\t\t// Renderer is set here because we need to call renderer.getEvents\n\t\t// before this.getEvents.\n\t\tthis._renderer = map.getRenderer(this);\n\t},\n\n\tonAdd: function () {\n\t\tthis._renderer._initPath(this);\n\t\tthis._reset();\n\t\tthis._renderer._addPath(this);\n\t},\n\n\tonRemove: function () {\n\t\tthis._renderer._removePath(this);\n\t},\n\n\t// @method redraw(): this\n\t// Redraws the layer. Sometimes useful after you changed the coordinates that the path uses.\n\tredraw: function () {\n\t\tif (this._map) {\n\t\t\tthis._renderer._updatePath(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method setStyle(style: Path options): this\n\t// Changes the appearance of a Path based on the options in the `Path options` object.\n\tsetStyle: function (style) {\n\t\tL.setOptions(this, style);\n\t\tif (this._renderer) {\n\t\t\tthis._renderer._updateStyle(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method bringToFront(): this\n\t// Brings the layer to the top of all path layers.\n\tbringToFront: function () {\n\t\tif (this._renderer) {\n\t\t\tthis._renderer._bringToFront(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method bringToBack(): this\n\t// Brings the layer to the bottom of all path layers.\n\tbringToBack: function () {\n\t\tif (this._renderer) {\n\t\t\tthis._renderer._bringToBack(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\tgetElement: function () {\n\t\treturn this._path;\n\t},\n\n\t_reset: function () {\n\t\t// defined in children classes\n\t\tthis._project();\n\t\tthis._update();\n\t},\n\n\t_clickTolerance: function () {\n\t\t// used when doing hit detection for Canvas layers\n\t\treturn (this.options.stroke ? this.options.weight / 2 : 0) + (L.Browser.touch ? 10 : 0);\n\t}\n});\n\n\n\n/*\r\n * @namespace LineUtil\r\n *\r\n * Various utility functions for polyine points processing, used by Leaflet internally to make polylines lightning-fast.\r\n */\r\n\r\nL.LineUtil = {\r\n\r\n\t// Simplify polyline with vertex reduction and Douglas-Peucker simplification.\r\n\t// Improves rendering performance dramatically by lessening the number of points to draw.\r\n\r\n\t// @function simplify(points: Point[], tolerance: Number): Point[]\r\n\t// Dramatically reduces the number of points in a polyline while retaining\r\n\t// its shape and returns a new array of simplified points, using the\r\n\t// [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm).\r\n\t// Used for a huge performance boost when processing/displaying Leaflet polylines for\r\n\t// each zoom level and also reducing visual noise. tolerance affects the amount of\r\n\t// simplification (lesser value means higher quality but slower and with more points).\r\n\t// Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/).\r\n\tsimplify: function (points, tolerance) {\r\n\t\tif (!tolerance || !points.length) {\r\n\t\t\treturn points.slice();\r\n\t\t}\r\n\r\n\t\tvar sqTolerance = tolerance * tolerance;\r\n\r\n\t\t// stage 1: vertex reduction\r\n\t\tpoints = this._reducePoints(points, sqTolerance);\r\n\r\n\t\t// stage 2: Douglas-Peucker simplification\r\n\t\tpoints = this._simplifyDP(points, sqTolerance);\r\n\r\n\t\treturn points;\r\n\t},\r\n\r\n\t// @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number\r\n\t// Returns the distance between point `p` and segment `p1` to `p2`.\r\n\tpointToSegmentDistance:  function (p, p1, p2) {\r\n\t\treturn Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));\r\n\t},\r\n\r\n\t// @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number\r\n\t// Returns the closest point from a point `p` on a segment `p1` to `p2`.\r\n\tclosestPointOnSegment: function (p, p1, p2) {\r\n\t\treturn this._sqClosestPointOnSegment(p, p1, p2);\r\n\t},\r\n\r\n\t// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm\r\n\t_simplifyDP: function (points, sqTolerance) {\r\n\r\n\t\tvar len = points.length,\r\n\t\t    ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,\r\n\t\t    markers = new ArrayConstructor(len);\r\n\r\n\t\tmarkers[0] = markers[len - 1] = 1;\r\n\r\n\t\tthis._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);\r\n\r\n\t\tvar i,\r\n\t\t    newPoints = [];\r\n\r\n\t\tfor (i = 0; i < len; i++) {\r\n\t\t\tif (markers[i]) {\r\n\t\t\t\tnewPoints.push(points[i]);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn newPoints;\r\n\t},\r\n\r\n\t_simplifyDPStep: function (points, markers, sqTolerance, first, last) {\r\n\r\n\t\tvar maxSqDist = 0,\r\n\t\t    index, i, sqDist;\r\n\r\n\t\tfor (i = first + 1; i <= last - 1; i++) {\r\n\t\t\tsqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);\r\n\r\n\t\t\tif (sqDist > maxSqDist) {\r\n\t\t\t\tindex = i;\r\n\t\t\t\tmaxSqDist = sqDist;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (maxSqDist > sqTolerance) {\r\n\t\t\tmarkers[index] = 1;\r\n\r\n\t\t\tthis._simplifyDPStep(points, markers, sqTolerance, first, index);\r\n\t\t\tthis._simplifyDPStep(points, markers, sqTolerance, index, last);\r\n\t\t}\r\n\t},\r\n\r\n\t// reduce points that are too close to each other to a single point\r\n\t_reducePoints: function (points, sqTolerance) {\r\n\t\tvar reducedPoints = [points[0]];\r\n\r\n\t\tfor (var i = 1, prev = 0, len = points.length; i < len; i++) {\r\n\t\t\tif (this._sqDist(points[i], points[prev]) > sqTolerance) {\r\n\t\t\t\treducedPoints.push(points[i]);\r\n\t\t\t\tprev = i;\r\n\t\t\t}\r\n\t\t}\r\n\t\tif (prev < len - 1) {\r\n\t\t\treducedPoints.push(points[len - 1]);\r\n\t\t}\r\n\t\treturn reducedPoints;\r\n\t},\r\n\r\n\r\n\t// @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean\r\n\t// Clips the segment a to b by rectangular bounds with the\r\n\t// [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm)\r\n\t// (modifying the segment points directly!). Used by Leaflet to only show polyline\r\n\t// points that are on the screen or near, increasing performance.\r\n\tclipSegment: function (a, b, bounds, useLastCode, round) {\r\n\t\tvar codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),\r\n\t\t    codeB = this._getBitCode(b, bounds),\r\n\r\n\t\t    codeOut, p, newCode;\r\n\r\n\t\t// save 2nd code to avoid calculating it on the next segment\r\n\t\tthis._lastCode = codeB;\r\n\r\n\t\twhile (true) {\r\n\t\t\t// if a,b is inside the clip window (trivial accept)\r\n\t\t\tif (!(codeA | codeB)) {\r\n\t\t\t\treturn [a, b];\r\n\t\t\t}\r\n\r\n\t\t\t// if a,b is outside the clip window (trivial reject)\r\n\t\t\tif (codeA & codeB) {\r\n\t\t\t\treturn false;\r\n\t\t\t}\r\n\r\n\t\t\t// other cases\r\n\t\t\tcodeOut = codeA || codeB;\r\n\t\t\tp = this._getEdgeIntersection(a, b, codeOut, bounds, round);\r\n\t\t\tnewCode = this._getBitCode(p, bounds);\r\n\r\n\t\t\tif (codeOut === codeA) {\r\n\t\t\t\ta = p;\r\n\t\t\t\tcodeA = newCode;\r\n\t\t\t} else {\r\n\t\t\t\tb = p;\r\n\t\t\t\tcodeB = newCode;\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t_getEdgeIntersection: function (a, b, code, bounds, round) {\r\n\t\tvar dx = b.x - a.x,\r\n\t\t    dy = b.y - a.y,\r\n\t\t    min = bounds.min,\r\n\t\t    max = bounds.max,\r\n\t\t    x, y;\r\n\r\n\t\tif (code & 8) { // top\r\n\t\t\tx = a.x + dx * (max.y - a.y) / dy;\r\n\t\t\ty = max.y;\r\n\r\n\t\t} else if (code & 4) { // bottom\r\n\t\t\tx = a.x + dx * (min.y - a.y) / dy;\r\n\t\t\ty = min.y;\r\n\r\n\t\t} else if (code & 2) { // right\r\n\t\t\tx = max.x;\r\n\t\t\ty = a.y + dy * (max.x - a.x) / dx;\r\n\r\n\t\t} else if (code & 1) { // left\r\n\t\t\tx = min.x;\r\n\t\t\ty = a.y + dy * (min.x - a.x) / dx;\r\n\t\t}\r\n\r\n\t\treturn new L.Point(x, y, round);\r\n\t},\r\n\r\n\t_getBitCode: function (p, bounds) {\r\n\t\tvar code = 0;\r\n\r\n\t\tif (p.x < bounds.min.x) { // left\r\n\t\t\tcode |= 1;\r\n\t\t} else if (p.x > bounds.max.x) { // right\r\n\t\t\tcode |= 2;\r\n\t\t}\r\n\r\n\t\tif (p.y < bounds.min.y) { // bottom\r\n\t\t\tcode |= 4;\r\n\t\t} else if (p.y > bounds.max.y) { // top\r\n\t\t\tcode |= 8;\r\n\t\t}\r\n\r\n\t\treturn code;\r\n\t},\r\n\r\n\t// square distance (to avoid unnecessary Math.sqrt calls)\r\n\t_sqDist: function (p1, p2) {\r\n\t\tvar dx = p2.x - p1.x,\r\n\t\t    dy = p2.y - p1.y;\r\n\t\treturn dx * dx + dy * dy;\r\n\t},\r\n\r\n\t// return closest point on segment or distance to that point\r\n\t_sqClosestPointOnSegment: function (p, p1, p2, sqDist) {\r\n\t\tvar x = p1.x,\r\n\t\t    y = p1.y,\r\n\t\t    dx = p2.x - x,\r\n\t\t    dy = p2.y - y,\r\n\t\t    dot = dx * dx + dy * dy,\r\n\t\t    t;\r\n\r\n\t\tif (dot > 0) {\r\n\t\t\tt = ((p.x - x) * dx + (p.y - y) * dy) / dot;\r\n\r\n\t\t\tif (t > 1) {\r\n\t\t\t\tx = p2.x;\r\n\t\t\t\ty = p2.y;\r\n\t\t\t} else if (t > 0) {\r\n\t\t\t\tx += dx * t;\r\n\t\t\t\ty += dy * t;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tdx = p.x - x;\r\n\t\tdy = p.y - y;\r\n\r\n\t\treturn sqDist ? dx * dx + dy * dy : new L.Point(x, y);\r\n\t}\r\n};\r\n\n\n\n/*\n * @class Polyline\n * @aka L.Polyline\n * @inherits Path\n *\n * A class for drawing polyline overlays on a map. Extends `Path`.\n *\n * @example\n *\n * ```js\n * // create a red polyline from an array of LatLng points\n * var latlngs = [\n * \t[45.51, -122.68],\n * \t[37.77, -122.43],\n * \t[34.04, -118.2]\n * ];\n *\n * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map);\n *\n * // zoom the map to the polyline\n * map.fitBounds(polyline.getBounds());\n * ```\n *\n * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape:\n *\n * ```js\n * // create a red polyline from an array of arrays of LatLng points\n * var latlngs = [\n * \t[[45.51, -122.68],\n * \t [37.77, -122.43],\n * \t [34.04, -118.2]],\n * \t[[40.78, -73.91],\n * \t [41.83, -87.62],\n * \t [32.76, -96.72]]\n * ];\n * ```\n */\n\nL.Polyline = L.Path.extend({\n\n\t// @section\n\t// @aka Polyline options\n\toptions: {\n\t\t// @option smoothFactor: Number = 1.0\n\t\t// How much to simplify the polyline on each zoom level. More means\n\t\t// better performance and smoother look, and less means more accurate representation.\n\t\tsmoothFactor: 1.0,\n\n\t\t// @option noClip: Boolean = false\n\t\t// Disable polyline clipping.\n\t\tnoClip: false\n\t},\n\n\tinitialize: function (latlngs, options) {\n\t\tL.setOptions(this, options);\n\t\tthis._setLatLngs(latlngs);\n\t},\n\n\t// @method getLatLngs(): LatLng[]\n\t// Returns an array of the points in the path, or nested arrays of points in case of multi-polyline.\n\tgetLatLngs: function () {\n\t\treturn this._latlngs;\n\t},\n\n\t// @method setLatLngs(latlngs: LatLng[]): this\n\t// Replaces all the points in the polyline with the given array of geographical points.\n\tsetLatLngs: function (latlngs) {\n\t\tthis._setLatLngs(latlngs);\n\t\treturn this.redraw();\n\t},\n\n\t// @method isEmpty(): Boolean\n\t// Returns `true` if the Polyline has no LatLngs.\n\tisEmpty: function () {\n\t\treturn !this._latlngs.length;\n\t},\n\n\tclosestLayerPoint: function (p) {\n\t\tvar minDistance = Infinity,\n\t\t    minPoint = null,\n\t\t    closest = L.LineUtil._sqClosestPointOnSegment,\n\t\t    p1, p2;\n\n\t\tfor (var j = 0, jLen = this._parts.length; j < jLen; j++) {\n\t\t\tvar points = this._parts[j];\n\n\t\t\tfor (var i = 1, len = points.length; i < len; i++) {\n\t\t\t\tp1 = points[i - 1];\n\t\t\t\tp2 = points[i];\n\n\t\t\t\tvar sqDist = closest(p, p1, p2, true);\n\n\t\t\t\tif (sqDist < minDistance) {\n\t\t\t\t\tminDistance = sqDist;\n\t\t\t\t\tminPoint = closest(p, p1, p2);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (minPoint) {\n\t\t\tminPoint.distance = Math.sqrt(minDistance);\n\t\t}\n\t\treturn minPoint;\n\t},\n\n\t// @method getCenter(): LatLng\n\t// Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline.\n\tgetCenter: function () {\n\t\t// throws error when not yet added to map as this center calculation requires projected coordinates\n\t\tif (!this._map) {\n\t\t\tthrow new Error('Must add layer to map before using getCenter()');\n\t\t}\n\n\t\tvar i, halfDist, segDist, dist, p1, p2, ratio,\n\t\t    points = this._rings[0],\n\t\t    len = points.length;\n\n\t\tif (!len) { return null; }\n\n\t\t// polyline centroid algorithm; only uses the first ring if there are multiple\n\n\t\tfor (i = 0, halfDist = 0; i < len - 1; i++) {\n\t\t\thalfDist += points[i].distanceTo(points[i + 1]) / 2;\n\t\t}\n\n\t\t// The line is so small in the current view that all points are on the same pixel.\n\t\tif (halfDist === 0) {\n\t\t\treturn this._map.layerPointToLatLng(points[0]);\n\t\t}\n\n\t\tfor (i = 0, dist = 0; i < len - 1; i++) {\n\t\t\tp1 = points[i];\n\t\t\tp2 = points[i + 1];\n\t\t\tsegDist = p1.distanceTo(p2);\n\t\t\tdist += segDist;\n\n\t\t\tif (dist > halfDist) {\n\t\t\t\tratio = (dist - halfDist) / segDist;\n\t\t\t\treturn this._map.layerPointToLatLng([\n\t\t\t\t\tp2.x - ratio * (p2.x - p1.x),\n\t\t\t\t\tp2.y - ratio * (p2.y - p1.y)\n\t\t\t\t]);\n\t\t\t}\n\t\t}\n\t},\n\n\t// @method getBounds(): LatLngBounds\n\t// Returns the `LatLngBounds` of the path.\n\tgetBounds: function () {\n\t\treturn this._bounds;\n\t},\n\n\t// @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this\n\t// Adds a given point to the polyline. By default, adds to the first ring of\n\t// the polyline in case of a multi-polyline, but can be overridden by passing\n\t// a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)).\n\taddLatLng: function (latlng, latlngs) {\n\t\tlatlngs = latlngs || this._defaultShape();\n\t\tlatlng = L.latLng(latlng);\n\t\tlatlngs.push(latlng);\n\t\tthis._bounds.extend(latlng);\n\t\treturn this.redraw();\n\t},\n\n\t_setLatLngs: function (latlngs) {\n\t\tthis._bounds = new L.LatLngBounds();\n\t\tthis._latlngs = this._convertLatLngs(latlngs);\n\t},\n\n\t_defaultShape: function () {\n\t\treturn L.Polyline._flat(this._latlngs) ? this._latlngs : this._latlngs[0];\n\t},\n\n\t// recursively convert latlngs input into actual LatLng instances; calculate bounds along the way\n\t_convertLatLngs: function (latlngs) {\n\t\tvar result = [],\n\t\t    flat = L.Polyline._flat(latlngs);\n\n\t\tfor (var i = 0, len = latlngs.length; i < len; i++) {\n\t\t\tif (flat) {\n\t\t\t\tresult[i] = L.latLng(latlngs[i]);\n\t\t\t\tthis._bounds.extend(result[i]);\n\t\t\t} else {\n\t\t\t\tresult[i] = this._convertLatLngs(latlngs[i]);\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t},\n\n\t_project: function () {\n\t\tvar pxBounds = new L.Bounds();\n\t\tthis._rings = [];\n\t\tthis._projectLatlngs(this._latlngs, this._rings, pxBounds);\n\n\t\tvar w = this._clickTolerance(),\n\t\t    p = new L.Point(w, w);\n\n\t\tif (this._bounds.isValid() && pxBounds.isValid()) {\n\t\t\tpxBounds.min._subtract(p);\n\t\t\tpxBounds.max._add(p);\n\t\t\tthis._pxBounds = pxBounds;\n\t\t}\n\t},\n\n\t// recursively turns latlngs into a set of rings with projected coordinates\n\t_projectLatlngs: function (latlngs, result, projectedBounds) {\n\t\tvar flat = latlngs[0] instanceof L.LatLng,\n\t\t    len = latlngs.length,\n\t\t    i, ring;\n\n\t\tif (flat) {\n\t\t\tring = [];\n\t\t\tfor (i = 0; i < len; i++) {\n\t\t\t\tring[i] = this._map.latLngToLayerPoint(latlngs[i]);\n\t\t\t\tprojectedBounds.extend(ring[i]);\n\t\t\t}\n\t\t\tresult.push(ring);\n\t\t} else {\n\t\t\tfor (i = 0; i < len; i++) {\n\t\t\t\tthis._projectLatlngs(latlngs[i], result, projectedBounds);\n\t\t\t}\n\t\t}\n\t},\n\n\t// clip polyline by renderer bounds so that we have less to render for performance\n\t_clipPoints: function () {\n\t\tvar bounds = this._renderer._bounds;\n\n\t\tthis._parts = [];\n\t\tif (!this._pxBounds || !this._pxBounds.intersects(bounds)) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (this.options.noClip) {\n\t\t\tthis._parts = this._rings;\n\t\t\treturn;\n\t\t}\n\n\t\tvar parts = this._parts,\n\t\t    i, j, k, len, len2, segment, points;\n\n\t\tfor (i = 0, k = 0, len = this._rings.length; i < len; i++) {\n\t\t\tpoints = this._rings[i];\n\n\t\t\tfor (j = 0, len2 = points.length; j < len2 - 1; j++) {\n\t\t\t\tsegment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j, true);\n\n\t\t\t\tif (!segment) { continue; }\n\n\t\t\t\tparts[k] = parts[k] || [];\n\t\t\t\tparts[k].push(segment[0]);\n\n\t\t\t\t// if segment goes out of screen, or it's the last one, it's the end of the line part\n\t\t\t\tif ((segment[1] !== points[j + 1]) || (j === len2 - 2)) {\n\t\t\t\t\tparts[k].push(segment[1]);\n\t\t\t\t\tk++;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t// simplify each clipped part of the polyline for performance\n\t_simplifyPoints: function () {\n\t\tvar parts = this._parts,\n\t\t    tolerance = this.options.smoothFactor;\n\n\t\tfor (var i = 0, len = parts.length; i < len; i++) {\n\t\t\tparts[i] = L.LineUtil.simplify(parts[i], tolerance);\n\t\t}\n\t},\n\n\t_update: function () {\n\t\tif (!this._map) { return; }\n\n\t\tthis._clipPoints();\n\t\tthis._simplifyPoints();\n\t\tthis._updatePath();\n\t},\n\n\t_updatePath: function () {\n\t\tthis._renderer._updatePoly(this);\n\t}\n});\n\n// @factory L.polyline(latlngs: LatLng[], options?: Polyline options)\n// Instantiates a polyline object given an array of geographical points and\n// optionally an options object. You can create a `Polyline` object with\n// multiple separate lines (`MultiPolyline`) by passing an array of arrays\n// of geographic points.\nL.polyline = function (latlngs, options) {\n\treturn new L.Polyline(latlngs, options);\n};\n\nL.Polyline._flat = function (latlngs) {\n\t// true if it's a flat array of latlngs; false if nested\n\treturn !L.Util.isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined');\n};\n\n\n\n/*\r\n * @namespace PolyUtil\r\n * Various utility functions for polygon geometries.\r\n */\r\n\r\nL.PolyUtil = {};\r\n\r\n/* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[]\r\n * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgeman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)).\r\n * Used by Leaflet to only show polygon points that are on the screen or near, increasing\r\n * performance. Note that polygon points needs different algorithm for clipping\r\n * than polyline, so there's a seperate method for it.\r\n */\r\nL.PolyUtil.clipPolygon = function (points, bounds, round) {\r\n\tvar clippedPoints,\r\n\t    edges = [1, 4, 2, 8],\r\n\t    i, j, k,\r\n\t    a, b,\r\n\t    len, edge, p,\r\n\t    lu = L.LineUtil;\r\n\r\n\tfor (i = 0, len = points.length; i < len; i++) {\r\n\t\tpoints[i]._code = lu._getBitCode(points[i], bounds);\r\n\t}\r\n\r\n\t// for each edge (left, bottom, right, top)\r\n\tfor (k = 0; k < 4; k++) {\r\n\t\tedge = edges[k];\r\n\t\tclippedPoints = [];\r\n\r\n\t\tfor (i = 0, len = points.length, j = len - 1; i < len; j = i++) {\r\n\t\t\ta = points[i];\r\n\t\t\tb = points[j];\r\n\r\n\t\t\t// if a is inside the clip window\r\n\t\t\tif (!(a._code & edge)) {\r\n\t\t\t\t// if b is outside the clip window (a->b goes out of screen)\r\n\t\t\t\tif (b._code & edge) {\r\n\t\t\t\t\tp = lu._getEdgeIntersection(b, a, edge, bounds, round);\r\n\t\t\t\t\tp._code = lu._getBitCode(p, bounds);\r\n\t\t\t\t\tclippedPoints.push(p);\r\n\t\t\t\t}\r\n\t\t\t\tclippedPoints.push(a);\r\n\r\n\t\t\t// else if b is inside the clip window (a->b enters the screen)\r\n\t\t\t} else if (!(b._code & edge)) {\r\n\t\t\t\tp = lu._getEdgeIntersection(b, a, edge, bounds, round);\r\n\t\t\t\tp._code = lu._getBitCode(p, bounds);\r\n\t\t\t\tclippedPoints.push(p);\r\n\t\t\t}\r\n\t\t}\r\n\t\tpoints = clippedPoints;\r\n\t}\r\n\r\n\treturn points;\r\n};\r\n\n\n\n/*\n * @class Polygon\n * @aka L.Polygon\n * @inherits Polyline\n *\n * A class for drawing polygon overlays on a map. Extends `Polyline`.\n *\n * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points.\n *\n *\n * @example\n *\n * ```js\n * // create a red polygon from an array of LatLng points\n * var latlngs = [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]];\n *\n * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map);\n *\n * // zoom the map to the polygon\n * map.fitBounds(polygon.getBounds());\n * ```\n *\n * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape:\n *\n * ```js\n * var latlngs = [\n *   [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring\n *   [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole\n * ];\n * ```\n *\n * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape.\n *\n * ```js\n * var latlngs = [\n *   [ // first polygon\n *     [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring\n *     [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole\n *   ],\n *   [ // second polygon\n *     [[41, -111.03],[45, -111.04],[45, -104.05],[41, -104.05]]\n *   ]\n * ];\n * ```\n */\n\nL.Polygon = L.Polyline.extend({\n\n\toptions: {\n\t\tfill: true\n\t},\n\n\tisEmpty: function () {\n\t\treturn !this._latlngs.length || !this._latlngs[0].length;\n\t},\n\n\tgetCenter: function () {\n\t\t// throws error when not yet added to map as this center calculation requires projected coordinates\n\t\tif (!this._map) {\n\t\t\tthrow new Error('Must add layer to map before using getCenter()');\n\t\t}\n\n\t\tvar i, j, p1, p2, f, area, x, y, center,\n\t\t    points = this._rings[0],\n\t\t    len = points.length;\n\n\t\tif (!len) { return null; }\n\n\t\t// polygon centroid algorithm; only uses the first ring if there are multiple\n\n\t\tarea = x = y = 0;\n\n\t\tfor (i = 0, j = len - 1; i < len; j = i++) {\n\t\t\tp1 = points[i];\n\t\t\tp2 = points[j];\n\n\t\t\tf = p1.y * p2.x - p2.y * p1.x;\n\t\t\tx += (p1.x + p2.x) * f;\n\t\t\ty += (p1.y + p2.y) * f;\n\t\t\tarea += f * 3;\n\t\t}\n\n\t\tif (area === 0) {\n\t\t\t// Polygon is so small that all points are on same pixel.\n\t\t\tcenter = points[0];\n\t\t} else {\n\t\t\tcenter = [x / area, y / area];\n\t\t}\n\t\treturn this._map.layerPointToLatLng(center);\n\t},\n\n\t_convertLatLngs: function (latlngs) {\n\t\tvar result = L.Polyline.prototype._convertLatLngs.call(this, latlngs),\n\t\t    len = result.length;\n\n\t\t// remove last point if it equals first one\n\t\tif (len >= 2 && result[0] instanceof L.LatLng && result[0].equals(result[len - 1])) {\n\t\t\tresult.pop();\n\t\t}\n\t\treturn result;\n\t},\n\n\t_setLatLngs: function (latlngs) {\n\t\tL.Polyline.prototype._setLatLngs.call(this, latlngs);\n\t\tif (L.Polyline._flat(this._latlngs)) {\n\t\t\tthis._latlngs = [this._latlngs];\n\t\t}\n\t},\n\n\t_defaultShape: function () {\n\t\treturn L.Polyline._flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0];\n\t},\n\n\t_clipPoints: function () {\n\t\t// polygons need a different clipping algorithm so we redefine that\n\n\t\tvar bounds = this._renderer._bounds,\n\t\t    w = this.options.weight,\n\t\t    p = new L.Point(w, w);\n\n\t\t// increase clip padding by stroke width to avoid stroke on clip edges\n\t\tbounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p));\n\n\t\tthis._parts = [];\n\t\tif (!this._pxBounds || !this._pxBounds.intersects(bounds)) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (this.options.noClip) {\n\t\t\tthis._parts = this._rings;\n\t\t\treturn;\n\t\t}\n\n\t\tfor (var i = 0, len = this._rings.length, clipped; i < len; i++) {\n\t\t\tclipped = L.PolyUtil.clipPolygon(this._rings[i], bounds, true);\n\t\t\tif (clipped.length) {\n\t\t\t\tthis._parts.push(clipped);\n\t\t\t}\n\t\t}\n\t},\n\n\t_updatePath: function () {\n\t\tthis._renderer._updatePoly(this, true);\n\t}\n});\n\n\n// @factory L.polygon(latlngs: LatLng[], options?: Polyline options)\nL.polygon = function (latlngs, options) {\n\treturn new L.Polygon(latlngs, options);\n};\n\n\n\n/*\n * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.\n */\n\n/*\n * @class Rectangle\n * @aka L.Retangle\n * @inherits Polygon\n *\n * A class for drawing rectangle overlays on a map. Extends `Polygon`.\n *\n * @example\n *\n * ```js\n * // define rectangle geographical bounds\n * var bounds = [[54.559322, -5.767822], [56.1210604, -3.021240]];\n *\n * // create an orange rectangle\n * L.rectangle(bounds, {color: \"#ff7800\", weight: 1}).addTo(map);\n *\n * // zoom the map to the rectangle bounds\n * map.fitBounds(bounds);\n * ```\n *\n */\n\n\nL.Rectangle = L.Polygon.extend({\n\tinitialize: function (latLngBounds, options) {\n\t\tL.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);\n\t},\n\n\t// @method setBounds(latLngBounds: LatLngBounds): this\n\t// Redraws the rectangle with the passed bounds.\n\tsetBounds: function (latLngBounds) {\n\t\treturn this.setLatLngs(this._boundsToLatLngs(latLngBounds));\n\t},\n\n\t_boundsToLatLngs: function (latLngBounds) {\n\t\tlatLngBounds = L.latLngBounds(latLngBounds);\n\t\treturn [\n\t\t\tlatLngBounds.getSouthWest(),\n\t\t\tlatLngBounds.getNorthWest(),\n\t\t\tlatLngBounds.getNorthEast(),\n\t\t\tlatLngBounds.getSouthEast()\n\t\t];\n\t}\n});\n\n\n// @factory L.rectangle(latLngBounds: LatLngBounds, options?: Polyline options)\nL.rectangle = function (latLngBounds, options) {\n\treturn new L.Rectangle(latLngBounds, options);\n};\n\n\n\n/*\n * @class CircleMarker\n * @aka L.CircleMarker\n * @inherits Path\n *\n * A circle of a fixed size with radius specified in pixels. Extends `Path`.\n */\n\nL.CircleMarker = L.Path.extend({\n\n\t// @section\n\t// @aka CircleMarker options\n\toptions: {\n\t\tfill: true,\n\n\t\t// @option radius: Number = 10\n\t\t// Radius of the circle marker, in pixels\n\t\tradius: 10\n\t},\n\n\tinitialize: function (latlng, options) {\n\t\tL.setOptions(this, options);\n\t\tthis._latlng = L.latLng(latlng);\n\t\tthis._radius = this.options.radius;\n\t},\n\n\t// @method setLatLng(latLng: LatLng): this\n\t// Sets the position of a circle marker to a new location.\n\tsetLatLng: function (latlng) {\n\t\tthis._latlng = L.latLng(latlng);\n\t\tthis.redraw();\n\t\treturn this.fire('move', {latlng: this._latlng});\n\t},\n\n\t// @method getLatLng(): LatLng\n\t// Returns the current geographical position of the circle marker\n\tgetLatLng: function () {\n\t\treturn this._latlng;\n\t},\n\n\t// @method setRadius(radius: Number): this\n\t// Sets the radius of a circle marker. Units are in pixels.\n\tsetRadius: function (radius) {\n\t\tthis.options.radius = this._radius = radius;\n\t\treturn this.redraw();\n\t},\n\n\t// @method getRadius(): Number\n\t// Returns the current radius of the circle\n\tgetRadius: function () {\n\t\treturn this._radius;\n\t},\n\n\tsetStyle : function (options) {\n\t\tvar radius = options && options.radius || this._radius;\n\t\tL.Path.prototype.setStyle.call(this, options);\n\t\tthis.setRadius(radius);\n\t\treturn this;\n\t},\n\n\t_project: function () {\n\t\tthis._point = this._map.latLngToLayerPoint(this._latlng);\n\t\tthis._updateBounds();\n\t},\n\n\t_updateBounds: function () {\n\t\tvar r = this._radius,\n\t\t    r2 = this._radiusY || r,\n\t\t    w = this._clickTolerance(),\n\t\t    p = [r + w, r2 + w];\n\t\tthis._pxBounds = new L.Bounds(this._point.subtract(p), this._point.add(p));\n\t},\n\n\t_update: function () {\n\t\tif (this._map) {\n\t\t\tthis._updatePath();\n\t\t}\n\t},\n\n\t_updatePath: function () {\n\t\tthis._renderer._updateCircle(this);\n\t},\n\n\t_empty: function () {\n\t\treturn this._radius && !this._renderer._bounds.intersects(this._pxBounds);\n\t}\n});\n\n\n// @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options)\n// Instantiates a circle marker object given a geographical point, and an optional options object.\nL.circleMarker = function (latlng, options) {\n\treturn new L.CircleMarker(latlng, options);\n};\n\n\n\n/*\n * @class Circle\n * @aka L.Circle\n * @inherits CircleMarker\n *\n * A class for drawing circle overlays on a map. Extends `CircleMarker`.\n *\n * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion).\n *\n * @example\n *\n * ```js\n * L.circle([50.5, 30.5], {radius: 200}).addTo(map);\n * ```\n */\n\nL.Circle = L.CircleMarker.extend({\n\n\tinitialize: function (latlng, options, legacyOptions) {\n\t\tif (typeof options === 'number') {\n\t\t\t// Backwards compatibility with 0.7.x factory (latlng, radius, options?)\n\t\t\toptions = L.extend({}, legacyOptions, {radius: options});\n\t\t}\n\t\tL.setOptions(this, options);\n\t\tthis._latlng = L.latLng(latlng);\n\n\t\tif (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); }\n\n\t\t// @section\n\t\t// @aka Circle options\n\t\t// @option radius: Number; Radius of the circle, in meters.\n\t\tthis._mRadius = this.options.radius;\n\t},\n\n\t// @method setRadius(radius: Number): this\n\t// Sets the radius of a circle. Units are in meters.\n\tsetRadius: function (radius) {\n\t\tthis._mRadius = radius;\n\t\treturn this.redraw();\n\t},\n\n\t// @method getRadius(): Number\n\t// Returns the current radius of a circle. Units are in meters.\n\tgetRadius: function () {\n\t\treturn this._mRadius;\n\t},\n\n\t// @method getBounds(): LatLngBounds\n\t// Returns the `LatLngBounds` of the path.\n\tgetBounds: function () {\n\t\tvar half = [this._radius, this._radiusY || this._radius];\n\n\t\treturn new L.LatLngBounds(\n\t\t\tthis._map.layerPointToLatLng(this._point.subtract(half)),\n\t\t\tthis._map.layerPointToLatLng(this._point.add(half)));\n\t},\n\n\tsetStyle: L.Path.prototype.setStyle,\n\n\t_project: function () {\n\n\t\tvar lng = this._latlng.lng,\n\t\t    lat = this._latlng.lat,\n\t\t    map = this._map,\n\t\t    crs = map.options.crs;\n\n\t\tif (crs.distance === L.CRS.Earth.distance) {\n\t\t\tvar d = Math.PI / 180,\n\t\t\t    latR = (this._mRadius / L.CRS.Earth.R) / d,\n\t\t\t    top = map.project([lat + latR, lng]),\n\t\t\t    bottom = map.project([lat - latR, lng]),\n\t\t\t    p = top.add(bottom).divideBy(2),\n\t\t\t    lat2 = map.unproject(p).lat,\n\t\t\t    lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) /\n\t\t\t            (Math.cos(lat * d) * Math.cos(lat2 * d))) / d;\n\n\t\t\tif (isNaN(lngR) || lngR === 0) {\n\t\t\t\tlngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425\n\t\t\t}\n\n\t\t\tthis._point = p.subtract(map.getPixelOrigin());\n\t\t\tthis._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1);\n\t\t\tthis._radiusY = Math.max(Math.round(p.y - top.y), 1);\n\n\t\t} else {\n\t\t\tvar latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));\n\n\t\t\tthis._point = map.latLngToLayerPoint(this._latlng);\n\t\t\tthis._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;\n\t\t}\n\n\t\tthis._updateBounds();\n\t}\n});\n\n// @factory L.circle(latlng: LatLng, options?: Circle options)\n// Instantiates a circle object given a geographical point, and an options object\n// which contains the circle radius.\n// @alternative\n// @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options)\n// Obsolete way of instantiating a circle, for compatibility with 0.7.x code.\n// Do not use in new applications or plugins.\nL.circle = function (latlng, options, legacyOptions) {\n\treturn new L.Circle(latlng, options, legacyOptions);\n};\n\n\n\n/*\n * @class SVG\n * @inherits Renderer\n * @aka L.SVG\n *\n * Allows vector layers to be displayed with [SVG](https://developer.mozilla.org/docs/Web/SVG).\n * Inherits `Renderer`.\n *\n * Due to [technical limitations](http://caniuse.com/#search=svg), SVG is not\n * available in all web browsers, notably Android 2.x and 3.x.\n *\n * Although SVG is not available on IE7 and IE8, these browsers support\n * [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language)\n * (a now deprecated technology), and the SVG renderer will fall back to VML in\n * this case.\n *\n * @example\n *\n * Use SVG by default for all paths in the map:\n *\n * ```js\n * var map = L.map('map', {\n * \trenderer: L.svg()\n * });\n * ```\n *\n * Use a SVG renderer with extra padding for specific vector geometries:\n *\n * ```js\n * var map = L.map('map');\n * var myRenderer = L.svg({ padding: 0.5 });\n * var line = L.polyline( coordinates, { renderer: myRenderer } );\n * var circle = L.circle( center, { renderer: myRenderer } );\n * ```\n */\n\nL.SVG = L.Renderer.extend({\n\n\tgetEvents: function () {\n\t\tvar events = L.Renderer.prototype.getEvents.call(this);\n\t\tevents.zoomstart = this._onZoomStart;\n\t\treturn events;\n\t},\n\n\t_initContainer: function () {\n\t\tthis._container = L.SVG.create('svg');\n\n\t\t// makes it possible to click through svg root; we'll reset it back in individual paths\n\t\tthis._container.setAttribute('pointer-events', 'none');\n\n\t\tthis._rootGroup = L.SVG.create('g');\n\t\tthis._container.appendChild(this._rootGroup);\n\t},\n\n\t_onZoomStart: function () {\n\t\t// Drag-then-pinch interactions might mess up the center and zoom.\n\t\t// In this case, the easiest way to prevent this is re-do the renderer\n\t\t//   bounds and padding when the zooming starts.\n\t\tthis._update();\n\t},\n\n\t_update: function () {\n\t\tif (this._map._animatingZoom && this._bounds) { return; }\n\n\t\tL.Renderer.prototype._update.call(this);\n\n\t\tvar b = this._bounds,\n\t\t    size = b.getSize(),\n\t\t    container = this._container;\n\n\t\t// set size of svg-container if changed\n\t\tif (!this._svgSize || !this._svgSize.equals(size)) {\n\t\t\tthis._svgSize = size;\n\t\t\tcontainer.setAttribute('width', size.x);\n\t\t\tcontainer.setAttribute('height', size.y);\n\t\t}\n\n\t\t// movement: update container viewBox so that we don't have to change coordinates of individual layers\n\t\tL.DomUtil.setPosition(container, b.min);\n\t\tcontainer.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' '));\n\n\t\tthis.fire('update');\n\t},\n\n\t// methods below are called by vector layers implementations\n\n\t_initPath: function (layer) {\n\t\tvar path = layer._path = L.SVG.create('path');\n\n\t\t// @namespace Path\n\t\t// @option className: String = null\n\t\t// Custom class name set on an element. Only for SVG renderer.\n\t\tif (layer.options.className) {\n\t\t\tL.DomUtil.addClass(path, layer.options.className);\n\t\t}\n\n\t\tif (layer.options.interactive) {\n\t\t\tL.DomUtil.addClass(path, 'leaflet-interactive');\n\t\t}\n\n\t\tthis._updateStyle(layer);\n\t\tthis._layers[L.stamp(layer)] = layer;\n\t},\n\n\t_addPath: function (layer) {\n\t\tthis._rootGroup.appendChild(layer._path);\n\t\tlayer.addInteractiveTarget(layer._path);\n\t},\n\n\t_removePath: function (layer) {\n\t\tL.DomUtil.remove(layer._path);\n\t\tlayer.removeInteractiveTarget(layer._path);\n\t\tdelete this._layers[L.stamp(layer)];\n\t},\n\n\t_updatePath: function (layer) {\n\t\tlayer._project();\n\t\tlayer._update();\n\t},\n\n\t_updateStyle: function (layer) {\n\t\tvar path = layer._path,\n\t\t    options = layer.options;\n\n\t\tif (!path) { return; }\n\n\t\tif (options.stroke) {\n\t\t\tpath.setAttribute('stroke', options.color);\n\t\t\tpath.setAttribute('stroke-opacity', options.opacity);\n\t\t\tpath.setAttribute('stroke-width', options.weight);\n\t\t\tpath.setAttribute('stroke-linecap', options.lineCap);\n\t\t\tpath.setAttribute('stroke-linejoin', options.lineJoin);\n\n\t\t\tif (options.dashArray) {\n\t\t\t\tpath.setAttribute('stroke-dasharray', options.dashArray);\n\t\t\t} else {\n\t\t\t\tpath.removeAttribute('stroke-dasharray');\n\t\t\t}\n\n\t\t\tif (options.dashOffset) {\n\t\t\t\tpath.setAttribute('stroke-dashoffset', options.dashOffset);\n\t\t\t} else {\n\t\t\t\tpath.removeAttribute('stroke-dashoffset');\n\t\t\t}\n\t\t} else {\n\t\t\tpath.setAttribute('stroke', 'none');\n\t\t}\n\n\t\tif (options.fill) {\n\t\t\tpath.setAttribute('fill', options.fillColor || options.color);\n\t\t\tpath.setAttribute('fill-opacity', options.fillOpacity);\n\t\t\tpath.setAttribute('fill-rule', options.fillRule || 'evenodd');\n\t\t} else {\n\t\t\tpath.setAttribute('fill', 'none');\n\t\t}\n\t},\n\n\t_updatePoly: function (layer, closed) {\n\t\tthis._setPath(layer, L.SVG.pointsToPath(layer._parts, closed));\n\t},\n\n\t_updateCircle: function (layer) {\n\t\tvar p = layer._point,\n\t\t    r = layer._radius,\n\t\t    r2 = layer._radiusY || r,\n\t\t    arc = 'a' + r + ',' + r2 + ' 0 1,0 ';\n\n\t\t// drawing a circle with two half-arcs\n\t\tvar d = layer._empty() ? 'M0 0' :\n\t\t\t\t'M' + (p.x - r) + ',' + p.y +\n\t\t\t\tarc + (r * 2) + ',0 ' +\n\t\t\t\tarc + (-r * 2) + ',0 ';\n\n\t\tthis._setPath(layer, d);\n\t},\n\n\t_setPath: function (layer, path) {\n\t\tlayer._path.setAttribute('d', path);\n\t},\n\n\t// SVG does not have the concept of zIndex so we resort to changing the DOM order of elements\n\t_bringToFront: function (layer) {\n\t\tL.DomUtil.toFront(layer._path);\n\t},\n\n\t_bringToBack: function (layer) {\n\t\tL.DomUtil.toBack(layer._path);\n\t}\n});\n\n\n// @namespace SVG; @section\n// There are several static functions which can be called without instantiating L.SVG:\nL.extend(L.SVG, {\n\t// @function create(name: String): SVGElement\n\t// Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement),\n\t// corresponding to the class name passed. For example, using 'line' will return\n\t// an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement).\n\tcreate: function (name) {\n\t\treturn document.createElementNS('http://www.w3.org/2000/svg', name);\n\t},\n\n\t// @function pointsToPath(rings: Point[], closed: Boolean): String\n\t// Generates a SVG path string for multiple rings, with each ring turning\n\t// into \"M..L..L..\" instructions\n\tpointsToPath: function (rings, closed) {\n\t\tvar str = '',\n\t\t    i, j, len, len2, points, p;\n\n\t\tfor (i = 0, len = rings.length; i < len; i++) {\n\t\t\tpoints = rings[i];\n\n\t\t\tfor (j = 0, len2 = points.length; j < len2; j++) {\n\t\t\t\tp = points[j];\n\t\t\t\tstr += (j ? 'L' : 'M') + p.x + ' ' + p.y;\n\t\t\t}\n\n\t\t\t// closes the ring for polygons; \"x\" is VML syntax\n\t\t\tstr += closed ? (L.Browser.svg ? 'z' : 'x') : '';\n\t\t}\n\n\t\t// SVG complains about empty path strings\n\t\treturn str || 'M0 0';\n\t}\n});\n\n// @namespace Browser; @property svg: Boolean\n// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG).\nL.Browser.svg = !!(document.createElementNS && L.SVG.create('svg').createSVGRect);\n\n\n// @namespace SVG\n// @factory L.svg(options?: Renderer options)\n// Creates a SVG renderer with the given options.\nL.svg = function (options) {\n\treturn L.Browser.svg || L.Browser.vml ? new L.SVG(options) : null;\n};\n\n\n\n/*\n * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!\n */\n\n/*\n * @class SVG\n *\n * Although SVG is not available on IE7 and IE8, these browsers support [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language), and the SVG renderer will fall back to VML in this case.\n *\n * VML was deprecated in 2012, which means VML functionality exists only for backwards compatibility\n * with old versions of Internet Explorer.\n */\n\n// @namespace Browser; @property vml: Boolean\n// `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language).\nL.Browser.vml = !L.Browser.svg && (function () {\n\ttry {\n\t\tvar div = document.createElement('div');\n\t\tdiv.innerHTML = '<v:shape adj=\"1\"/>';\n\n\t\tvar shape = div.firstChild;\n\t\tshape.style.behavior = 'url(#default#VML)';\n\n\t\treturn shape && (typeof shape.adj === 'object');\n\n\t} catch (e) {\n\t\treturn false;\n\t}\n}());\n\n// redefine some SVG methods to handle VML syntax which is similar but with some differences\nL.SVG.include(!L.Browser.vml ? {} : {\n\n\t_initContainer: function () {\n\t\tthis._container = L.DomUtil.create('div', 'leaflet-vml-container');\n\t},\n\n\t_update: function () {\n\t\tif (this._map._animatingZoom) { return; }\n\t\tL.Renderer.prototype._update.call(this);\n\t\tthis.fire('update');\n\t},\n\n\t_initPath: function (layer) {\n\t\tvar container = layer._container = L.SVG.create('shape');\n\n\t\tL.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));\n\n\t\tcontainer.coordsize = '1 1';\n\n\t\tlayer._path = L.SVG.create('path');\n\t\tcontainer.appendChild(layer._path);\n\n\t\tthis._updateStyle(layer);\n\t\tthis._layers[L.stamp(layer)] = layer;\n\t},\n\n\t_addPath: function (layer) {\n\t\tvar container = layer._container;\n\t\tthis._container.appendChild(container);\n\n\t\tif (layer.options.interactive) {\n\t\t\tlayer.addInteractiveTarget(container);\n\t\t}\n\t},\n\n\t_removePath: function (layer) {\n\t\tvar container = layer._container;\n\t\tL.DomUtil.remove(container);\n\t\tlayer.removeInteractiveTarget(container);\n\t\tdelete this._layers[L.stamp(layer)];\n\t},\n\n\t_updateStyle: function (layer) {\n\t\tvar stroke = layer._stroke,\n\t\t    fill = layer._fill,\n\t\t    options = layer.options,\n\t\t    container = layer._container;\n\n\t\tcontainer.stroked = !!options.stroke;\n\t\tcontainer.filled = !!options.fill;\n\n\t\tif (options.stroke) {\n\t\t\tif (!stroke) {\n\t\t\t\tstroke = layer._stroke = L.SVG.create('stroke');\n\t\t\t}\n\t\t\tcontainer.appendChild(stroke);\n\t\t\tstroke.weight = options.weight + 'px';\n\t\t\tstroke.color = options.color;\n\t\t\tstroke.opacity = options.opacity;\n\n\t\t\tif (options.dashArray) {\n\t\t\t\tstroke.dashStyle = L.Util.isArray(options.dashArray) ?\n\t\t\t\t    options.dashArray.join(' ') :\n\t\t\t\t    options.dashArray.replace(/( *, *)/g, ' ');\n\t\t\t} else {\n\t\t\t\tstroke.dashStyle = '';\n\t\t\t}\n\t\t\tstroke.endcap = options.lineCap.replace('butt', 'flat');\n\t\t\tstroke.joinstyle = options.lineJoin;\n\n\t\t} else if (stroke) {\n\t\t\tcontainer.removeChild(stroke);\n\t\t\tlayer._stroke = null;\n\t\t}\n\n\t\tif (options.fill) {\n\t\t\tif (!fill) {\n\t\t\t\tfill = layer._fill = L.SVG.create('fill');\n\t\t\t}\n\t\t\tcontainer.appendChild(fill);\n\t\t\tfill.color = options.fillColor || options.color;\n\t\t\tfill.opacity = options.fillOpacity;\n\n\t\t} else if (fill) {\n\t\t\tcontainer.removeChild(fill);\n\t\t\tlayer._fill = null;\n\t\t}\n\t},\n\n\t_updateCircle: function (layer) {\n\t\tvar p = layer._point.round(),\n\t\t    r = Math.round(layer._radius),\n\t\t    r2 = Math.round(layer._radiusY || r);\n\n\t\tthis._setPath(layer, layer._empty() ? 'M0 0' :\n\t\t\t\t'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360));\n\t},\n\n\t_setPath: function (layer, path) {\n\t\tlayer._path.v = path;\n\t},\n\n\t_bringToFront: function (layer) {\n\t\tL.DomUtil.toFront(layer._container);\n\t},\n\n\t_bringToBack: function (layer) {\n\t\tL.DomUtil.toBack(layer._container);\n\t}\n});\n\nif (L.Browser.vml) {\n\tL.SVG.create = (function () {\n\t\ttry {\n\t\t\tdocument.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');\n\t\t\treturn function (name) {\n\t\t\t\treturn document.createElement('<lvml:' + name + ' class=\"lvml\">');\n\t\t\t};\n\t\t} catch (e) {\n\t\t\treturn function (name) {\n\t\t\t\treturn document.createElement('<' + name + ' xmlns=\"urn:schemas-microsoft.com:vml\" class=\"lvml\">');\n\t\t\t};\n\t\t}\n\t})();\n}\n\n\n\n/*\n * @class Canvas\n * @inherits Renderer\n * @aka L.Canvas\n *\n * Allows vector layers to be displayed with [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).\n * Inherits `Renderer`.\n *\n * Due to [technical limitations](http://caniuse.com/#search=canvas), Canvas is not\n * available in all web browsers, notably IE8, and overlapping geometries might\n * not display properly in some edge cases.\n *\n * @example\n *\n * Use Canvas by default for all paths in the map:\n *\n * ```js\n * var map = L.map('map', {\n * \trenderer: L.canvas()\n * });\n * ```\n *\n * Use a Canvas renderer with extra padding for specific vector geometries:\n *\n * ```js\n * var map = L.map('map');\n * var myRenderer = L.canvas({ padding: 0.5 });\n * var line = L.polyline( coordinates, { renderer: myRenderer } );\n * var circle = L.circle( center, { renderer: myRenderer } );\n * ```\n */\n\nL.Canvas = L.Renderer.extend({\n\tgetEvents: function () {\n\t\tvar events = L.Renderer.prototype.getEvents.call(this);\n\t\tevents.viewprereset = this._onViewPreReset;\n\t\treturn events;\n\t},\n\n\t_onViewPreReset: function () {\n\t\t// Set a flag so that a viewprereset+moveend+viewreset only updates&redraws once\n\t\tthis._postponeUpdatePaths = true;\n\t},\n\n\tonAdd: function () {\n\t\tL.Renderer.prototype.onAdd.call(this);\n\n\t\t// Redraw vectors since canvas is cleared upon removal,\n\t\t// in case of removing the renderer itself from the map.\n\t\tthis._draw();\n\t},\n\n\t_initContainer: function () {\n\t\tvar container = this._container = document.createElement('canvas');\n\n\t\tL.DomEvent\n\t\t\t.on(container, 'mousemove', L.Util.throttle(this._onMouseMove, 32, this), this)\n\t\t\t.on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this)\n\t\t\t.on(container, 'mouseout', this._handleMouseOut, this);\n\n\t\tthis._ctx = container.getContext('2d');\n\t},\n\n\t_updatePaths: function () {\n\t\tif (this._postponeUpdatePaths) { return; }\n\n\t\tvar layer;\n\t\tthis._redrawBounds = null;\n\t\tfor (var id in this._layers) {\n\t\t\tlayer = this._layers[id];\n\t\t\tlayer._update();\n\t\t}\n\t\tthis._redraw();\n\t},\n\n\t_update: function () {\n\t\tif (this._map._animatingZoom && this._bounds) { return; }\n\n\t\tthis._drawnLayers = {};\n\n\t\tL.Renderer.prototype._update.call(this);\n\n\t\tvar b = this._bounds,\n\t\t    container = this._container,\n\t\t    size = b.getSize(),\n\t\t    m = L.Browser.retina ? 2 : 1;\n\n\t\tL.DomUtil.setPosition(container, b.min);\n\n\t\t// set canvas size (also clearing it); use double size on retina\n\t\tcontainer.width = m * size.x;\n\t\tcontainer.height = m * size.y;\n\t\tcontainer.style.width = size.x + 'px';\n\t\tcontainer.style.height = size.y + 'px';\n\n\t\tif (L.Browser.retina) {\n\t\t\tthis._ctx.scale(2, 2);\n\t\t}\n\n\t\t// translate so we use the same path coordinates after canvas element moves\n\t\tthis._ctx.translate(-b.min.x, -b.min.y);\n\n\t\t// Tell paths to redraw themselves\n\t\tthis.fire('update');\n\t},\n\n\t_reset: function () {\n\t\tL.Renderer.prototype._reset.call(this);\n\n\t\tif (this._postponeUpdatePaths) {\n\t\t\tthis._postponeUpdatePaths = false;\n\t\t\tthis._updatePaths();\n\t\t}\n\t},\n\n\t_initPath: function (layer) {\n\t\tthis._updateDashArray(layer);\n\t\tthis._layers[L.stamp(layer)] = layer;\n\n\t\tvar order = layer._order = {\n\t\t\tlayer: layer,\n\t\t\tprev: this._drawLast,\n\t\t\tnext: null\n\t\t};\n\t\tif (this._drawLast) { this._drawLast.next = order; }\n\t\tthis._drawLast = order;\n\t\tthis._drawFirst = this._drawFirst || this._drawLast;\n\t},\n\n\t_addPath: function (layer) {\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_removePath: function (layer) {\n\t\tvar order = layer._order;\n\t\tvar next = order.next;\n\t\tvar prev = order.prev;\n\n\t\tif (next) {\n\t\t\tnext.prev = prev;\n\t\t} else {\n\t\t\tthis._drawLast = prev;\n\t\t}\n\t\tif (prev) {\n\t\t\tprev.next = next;\n\t\t} else {\n\t\t\tthis._drawFirst = next;\n\t\t}\n\n\t\tdelete layer._order;\n\n\t\tdelete this._layers[L.stamp(layer)];\n\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_updatePath: function (layer) {\n\t\t// Redraw the union of the layer's old pixel\n\t\t// bounds and the new pixel bounds.\n\t\tthis._extendRedrawBounds(layer);\n\t\tlayer._project();\n\t\tlayer._update();\n\t\t// The redraw will extend the redraw bounds\n\t\t// with the new pixel bounds.\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_updateStyle: function (layer) {\n\t\tthis._updateDashArray(layer);\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_updateDashArray: function (layer) {\n\t\tif (layer.options.dashArray) {\n\t\t\tvar parts = layer.options.dashArray.split(','),\n\t\t\t    dashArray = [],\n\t\t\t    i;\n\t\t\tfor (i = 0; i < parts.length; i++) {\n\t\t\t\tdashArray.push(Number(parts[i]));\n\t\t\t}\n\t\t\tlayer.options._dashArray = dashArray;\n\t\t}\n\t},\n\n\t_requestRedraw: function (layer) {\n\t\tif (!this._map) { return; }\n\n\t\tthis._extendRedrawBounds(layer);\n\t\tthis._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this);\n\t},\n\n\t_extendRedrawBounds: function (layer) {\n\t\tvar padding = (layer.options.weight || 0) + 1;\n\t\tthis._redrawBounds = this._redrawBounds || new L.Bounds();\n\t\tthis._redrawBounds.extend(layer._pxBounds.min.subtract([padding, padding]));\n\t\tthis._redrawBounds.extend(layer._pxBounds.max.add([padding, padding]));\n\t},\n\n\t_redraw: function () {\n\t\tthis._redrawRequest = null;\n\n\t\tif (this._redrawBounds) {\n\t\t\tthis._redrawBounds.min._floor();\n\t\t\tthis._redrawBounds.max._ceil();\n\t\t}\n\n\t\tthis._clear(); // clear layers in redraw bounds\n\t\tthis._draw(); // draw layers\n\n\t\tthis._redrawBounds = null;\n\t},\n\n\t_clear: function () {\n\t\tvar bounds = this._redrawBounds;\n\t\tif (bounds) {\n\t\t\tvar size = bounds.getSize();\n\t\t\tthis._ctx.clearRect(bounds.min.x, bounds.min.y, size.x, size.y);\n\t\t} else {\n\t\t\tthis._ctx.clearRect(0, 0, this._container.width, this._container.height);\n\t\t}\n\t},\n\n\t_draw: function () {\n\t\tvar layer, bounds = this._redrawBounds;\n\t\tthis._ctx.save();\n\t\tif (bounds) {\n\t\t\tvar size = bounds.getSize();\n\t\t\tthis._ctx.beginPath();\n\t\t\tthis._ctx.rect(bounds.min.x, bounds.min.y, size.x, size.y);\n\t\t\tthis._ctx.clip();\n\t\t}\n\n\t\tthis._drawing = true;\n\n\t\tfor (var order = this._drawFirst; order; order = order.next) {\n\t\t\tlayer = order.layer;\n\t\t\tif (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) {\n\t\t\t\tlayer._updatePath();\n\t\t\t}\n\t\t}\n\n\t\tthis._drawing = false;\n\n\t\tthis._ctx.restore();  // Restore state before clipping.\n\t},\n\n\t_updatePoly: function (layer, closed) {\n\t\tif (!this._drawing) { return; }\n\n\t\tvar i, j, len2, p,\n\t\t    parts = layer._parts,\n\t\t    len = parts.length,\n\t\t    ctx = this._ctx;\n\n\t\tif (!len) { return; }\n\n\t\tthis._drawnLayers[layer._leaflet_id] = layer;\n\n\t\tctx.beginPath();\n\n\t\tif (ctx.setLineDash) {\n\t\t\tctx.setLineDash(layer.options && layer.options._dashArray || []);\n\t\t}\n\n\t\tfor (i = 0; i < len; i++) {\n\t\t\tfor (j = 0, len2 = parts[i].length; j < len2; j++) {\n\t\t\t\tp = parts[i][j];\n\t\t\t\tctx[j ? 'lineTo' : 'moveTo'](p.x, p.y);\n\t\t\t}\n\t\t\tif (closed) {\n\t\t\t\tctx.closePath();\n\t\t\t}\n\t\t}\n\n\t\tthis._fillStroke(ctx, layer);\n\n\t\t// TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature\n\t},\n\n\t_updateCircle: function (layer) {\n\n\t\tif (!this._drawing || layer._empty()) { return; }\n\n\t\tvar p = layer._point,\n\t\t    ctx = this._ctx,\n\t\t    r = layer._radius,\n\t\t    s = (layer._radiusY || r) / r;\n\n\t\tthis._drawnLayers[layer._leaflet_id] = layer;\n\n\t\tif (s !== 1) {\n\t\t\tctx.save();\n\t\t\tctx.scale(1, s);\n\t\t}\n\n\t\tctx.beginPath();\n\t\tctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);\n\n\t\tif (s !== 1) {\n\t\t\tctx.restore();\n\t\t}\n\n\t\tthis._fillStroke(ctx, layer);\n\t},\n\n\t_fillStroke: function (ctx, layer) {\n\t\tvar options = layer.options;\n\n\t\tif (options.fill) {\n\t\t\tctx.globalAlpha = options.fillOpacity;\n\t\t\tctx.fillStyle = options.fillColor || options.color;\n\t\t\tctx.fill(options.fillRule || 'evenodd');\n\t\t}\n\n\t\tif (options.stroke && options.weight !== 0) {\n\t\t\tctx.globalAlpha = options.opacity;\n\t\t\tctx.lineWidth = options.weight;\n\t\t\tctx.strokeStyle = options.color;\n\t\t\tctx.lineCap = options.lineCap;\n\t\t\tctx.lineJoin = options.lineJoin;\n\t\t\tctx.stroke();\n\t\t}\n\t},\n\n\t// Canvas obviously doesn't have mouse events for individual drawn objects,\n\t// so we emulate that by calculating what's under the mouse on mousemove/click manually\n\n\t_onClick: function (e) {\n\t\tvar point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer;\n\n\t\tfor (var order = this._drawFirst; order; order = order.next) {\n\t\t\tlayer = order.layer;\n\t\t\tif (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) {\n\t\t\t\tclickedLayer = layer;\n\t\t\t}\n\t\t}\n\t\tif (clickedLayer)  {\n\t\t\tL.DomEvent._fakeStop(e);\n\t\t\tthis._fireEvent([clickedLayer], e);\n\t\t}\n\t},\n\n\t_onMouseMove: function (e) {\n\t\tif (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; }\n\n\t\tvar point = this._map.mouseEventToLayerPoint(e);\n\t\tthis._handleMouseHover(e, point);\n\t},\n\n\n\t_handleMouseOut: function (e) {\n\t\tvar layer = this._hoveredLayer;\n\t\tif (layer) {\n\t\t\t// if we're leaving the layer, fire mouseout\n\t\t\tL.DomUtil.removeClass(this._container, 'leaflet-interactive');\n\t\t\tthis._fireEvent([layer], e, 'mouseout');\n\t\t\tthis._hoveredLayer = null;\n\t\t}\n\t},\n\n\t_handleMouseHover: function (e, point) {\n\t\tvar layer, candidateHoveredLayer;\n\n\t\tfor (var order = this._drawFirst; order; order = order.next) {\n\t\t\tlayer = order.layer;\n\t\t\tif (layer.options.interactive && layer._containsPoint(point)) {\n\t\t\t\tcandidateHoveredLayer = layer;\n\t\t\t}\n\t\t}\n\n\t\tif (candidateHoveredLayer !== this._hoveredLayer) {\n\t\t\tthis._handleMouseOut(e);\n\n\t\t\tif (candidateHoveredLayer) {\n\t\t\t\tL.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor\n\t\t\t\tthis._fireEvent([candidateHoveredLayer], e, 'mouseover');\n\t\t\t\tthis._hoveredLayer = candidateHoveredLayer;\n\t\t\t}\n\t\t}\n\n\t\tif (this._hoveredLayer) {\n\t\t\tthis._fireEvent([this._hoveredLayer], e);\n\t\t}\n\t},\n\n\t_fireEvent: function (layers, e, type) {\n\t\tthis._map._fireDOMEvent(e, type || e.type, layers);\n\t},\n\n\t_bringToFront: function (layer) {\n\t\tvar order = layer._order;\n\t\tvar next = order.next;\n\t\tvar prev = order.prev;\n\n\t\tif (next) {\n\t\t\tnext.prev = prev;\n\t\t} else {\n\t\t\t// Already last\n\t\t\treturn;\n\t\t}\n\t\tif (prev) {\n\t\t\tprev.next = next;\n\t\t} else if (next) {\n\t\t\t// Update first entry unless this is the\n\t\t\t// signle entry\n\t\t\tthis._drawFirst = next;\n\t\t}\n\n\t\torder.prev = this._drawLast;\n\t\tthis._drawLast.next = order;\n\n\t\torder.next = null;\n\t\tthis._drawLast = order;\n\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_bringToBack: function (layer) {\n\t\tvar order = layer._order;\n\t\tvar next = order.next;\n\t\tvar prev = order.prev;\n\n\t\tif (prev) {\n\t\t\tprev.next = next;\n\t\t} else {\n\t\t\t// Already first\n\t\t\treturn;\n\t\t}\n\t\tif (next) {\n\t\t\tnext.prev = prev;\n\t\t} else if (prev) {\n\t\t\t// Update last entry unless this is the\n\t\t\t// signle entry\n\t\t\tthis._drawLast = prev;\n\t\t}\n\n\t\torder.prev = null;\n\n\t\torder.next = this._drawFirst;\n\t\tthis._drawFirst.prev = order;\n\t\tthis._drawFirst = order;\n\n\t\tthis._requestRedraw(layer);\n\t}\n});\n\n// @namespace Browser; @property canvas: Boolean\n// `true` when the browser supports [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).\nL.Browser.canvas = (function () {\n\treturn !!document.createElement('canvas').getContext;\n}());\n\n// @namespace Canvas\n// @factory L.canvas(options?: Renderer options)\n// Creates a Canvas renderer with the given options.\nL.canvas = function (options) {\n\treturn L.Browser.canvas ? new L.Canvas(options) : null;\n};\n\nL.Polyline.prototype._containsPoint = function (p, closed) {\n\tvar i, j, k, len, len2, part,\n\t    w = this._clickTolerance();\n\n\tif (!this._pxBounds.contains(p)) { return false; }\n\n\t// hit detection for polylines\n\tfor (i = 0, len = this._parts.length; i < len; i++) {\n\t\tpart = this._parts[i];\n\n\t\tfor (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {\n\t\t\tif (!closed && (j === 0)) { continue; }\n\n\t\t\tif (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t}\n\treturn false;\n};\n\nL.Polygon.prototype._containsPoint = function (p) {\n\tvar inside = false,\n\t    part, p1, p2, i, j, k, len, len2;\n\n\tif (!this._pxBounds.contains(p)) { return false; }\n\n\t// ray casting algorithm for detecting if point is in polygon\n\tfor (i = 0, len = this._parts.length; i < len; i++) {\n\t\tpart = this._parts[i];\n\n\t\tfor (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {\n\t\t\tp1 = part[j];\n\t\t\tp2 = part[k];\n\n\t\t\tif (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {\n\t\t\t\tinside = !inside;\n\t\t\t}\n\t\t}\n\t}\n\n\t// also check if it's on polygon stroke\n\treturn inside || L.Polyline.prototype._containsPoint.call(this, p, true);\n};\n\nL.CircleMarker.prototype._containsPoint = function (p) {\n\treturn p.distanceTo(this._point) <= this._radius + this._clickTolerance();\n};\n\n\n\n/*\r\n * @class GeoJSON\r\n * @aka L.GeoJSON\r\n * @inherits FeatureGroup\r\n *\r\n * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse\r\n * GeoJSON data and display it on the map. Extends `FeatureGroup`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.geoJSON(data, {\r\n * \tstyle: function (feature) {\r\n * \t\treturn {color: feature.properties.color};\r\n * \t}\r\n * }).bindPopup(function (layer) {\r\n * \treturn layer.feature.properties.description;\r\n * }).addTo(map);\r\n * ```\r\n */\r\n\r\nL.GeoJSON = L.FeatureGroup.extend({\r\n\r\n\t/* @section\r\n\t * @aka GeoJSON options\r\n\t *\r\n\t * @option pointToLayer: Function = *\r\n\t * A `Function` defining how GeoJSON points spawn Leaflet layers. It is internally\r\n\t * called when data is added, passing the GeoJSON point feature and its `LatLng`.\r\n\t * The default is to spawn a default `Marker`:\r\n\t * ```js\r\n\t * function(geoJsonPoint, latlng) {\r\n\t * \treturn L.marker(latlng);\r\n\t * }\r\n\t * ```\r\n\t *\r\n\t * @option style: Function = *\r\n\t * A `Function` defining the `Path options` for styling GeoJSON lines and polygons,\r\n\t * called internally when data is added.\r\n\t * The default value is to not override any defaults:\r\n\t * ```js\r\n\t * function (geoJsonFeature) {\r\n\t * \treturn {}\r\n\t * }\r\n\t * ```\r\n\t *\r\n\t * @option onEachFeature: Function = *\r\n\t * A `Function` that will be called once for each created `Feature`, after it has\r\n\t * been created and styled. Useful for attaching events and popups to features.\r\n\t * The default is to do nothing with the newly created layers:\r\n\t * ```js\r\n\t * function (feature, layer) {}\r\n\t * ```\r\n\t *\r\n\t * @option filter: Function = *\r\n\t * A `Function` that will be used to decide whether to include a feature or not.\r\n\t * The default is to include all features:\r\n\t * ```js\r\n\t * function (geoJsonFeature) {\r\n\t * \treturn true;\r\n\t * }\r\n\t * ```\r\n\t * Note: dynamically changing the `filter` option will have effect only on newly\r\n\t * added data. It will _not_ re-evaluate already included features.\r\n\t *\r\n\t * @option coordsToLatLng: Function = *\r\n\t * A `Function` that will be used for converting GeoJSON coordinates to `LatLng`s.\r\n\t * The default is the `coordsToLatLng` static method.\r\n\t */\r\n\r\n\tinitialize: function (geojson, options) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._layers = {};\r\n\r\n\t\tif (geojson) {\r\n\t\t\tthis.addData(geojson);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method addData( <GeoJSON> data ): this\r\n\t// Adds a GeoJSON object to the layer.\r\n\taddData: function (geojson) {\r\n\t\tvar features = L.Util.isArray(geojson) ? geojson : geojson.features,\r\n\t\t    i, len, feature;\r\n\r\n\t\tif (features) {\r\n\t\t\tfor (i = 0, len = features.length; i < len; i++) {\r\n\t\t\t\t// only add this if geometry or geometries are set and not null\r\n\t\t\t\tfeature = features[i];\r\n\t\t\t\tif (feature.geometries || feature.geometry || feature.features || feature.coordinates) {\r\n\t\t\t\t\tthis.addData(feature);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tvar options = this.options;\r\n\r\n\t\tif (options.filter && !options.filter(geojson)) { return this; }\r\n\r\n\t\tvar layer = L.GeoJSON.geometryToLayer(geojson, options);\r\n\t\tif (!layer) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\t\tlayer.feature = L.GeoJSON.asFeature(geojson);\r\n\r\n\t\tlayer.defaultOptions = layer.options;\r\n\t\tthis.resetStyle(layer);\r\n\r\n\t\tif (options.onEachFeature) {\r\n\t\t\toptions.onEachFeature(geojson, layer);\r\n\t\t}\r\n\r\n\t\treturn this.addLayer(layer);\r\n\t},\r\n\r\n\t// @method resetStyle( <Path> layer ): this\r\n\t// Resets the given vector layer's style to the original GeoJSON style, useful for resetting style after hover events.\r\n\tresetStyle: function (layer) {\r\n\t\t// reset any custom styles\r\n\t\tlayer.options = L.Util.extend({}, layer.defaultOptions);\r\n\t\tthis._setLayerStyle(layer, this.options.style);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setStyle( <Function> style ): this\r\n\t// Changes styles of GeoJSON vector layers with the given style function.\r\n\tsetStyle: function (style) {\r\n\t\treturn this.eachLayer(function (layer) {\r\n\t\t\tthis._setLayerStyle(layer, style);\r\n\t\t}, this);\r\n\t},\r\n\r\n\t_setLayerStyle: function (layer, style) {\r\n\t\tif (typeof style === 'function') {\r\n\t\t\tstyle = style(layer.feature);\r\n\t\t}\r\n\t\tif (layer.setStyle) {\r\n\t\t\tlayer.setStyle(style);\r\n\t\t}\r\n\t}\r\n});\r\n\r\n// @section\r\n// There are several static functions which can be called without instantiating L.GeoJSON:\r\nL.extend(L.GeoJSON, {\r\n\t// @function geometryToLayer(featureData: Object, options?: GeoJSON options): Layer\r\n\t// Creates a `Layer` from a given GeoJSON feature. Can use a custom\r\n\t// [`pointToLayer`](#geojson-pointtolayer) and/or [`coordsToLatLng`](#geojson-coordstolatlng)\r\n\t// functions if provided as options.\r\n\tgeometryToLayer: function (geojson, options) {\r\n\r\n\t\tvar geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,\r\n\t\t    coords = geometry ? geometry.coordinates : null,\r\n\t\t    layers = [],\r\n\t\t    pointToLayer = options && options.pointToLayer,\r\n\t\t    coordsToLatLng = options && options.coordsToLatLng || this.coordsToLatLng,\r\n\t\t    latlng, latlngs, i, len;\r\n\r\n\t\tif (!coords && !geometry) {\r\n\t\t\treturn null;\r\n\t\t}\r\n\r\n\t\tswitch (geometry.type) {\r\n\t\tcase 'Point':\r\n\t\t\tlatlng = coordsToLatLng(coords);\r\n\t\t\treturn pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);\r\n\r\n\t\tcase 'MultiPoint':\r\n\t\t\tfor (i = 0, len = coords.length; i < len; i++) {\r\n\t\t\t\tlatlng = coordsToLatLng(coords[i]);\r\n\t\t\t\tlayers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));\r\n\t\t\t}\r\n\t\t\treturn new L.FeatureGroup(layers);\r\n\r\n\t\tcase 'LineString':\r\n\t\tcase 'MultiLineString':\r\n\t\t\tlatlngs = this.coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, coordsToLatLng);\r\n\t\t\treturn new L.Polyline(latlngs, options);\r\n\r\n\t\tcase 'Polygon':\r\n\t\tcase 'MultiPolygon':\r\n\t\t\tlatlngs = this.coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, coordsToLatLng);\r\n\t\t\treturn new L.Polygon(latlngs, options);\r\n\r\n\t\tcase 'GeometryCollection':\r\n\t\t\tfor (i = 0, len = geometry.geometries.length; i < len; i++) {\r\n\t\t\t\tvar layer = this.geometryToLayer({\r\n\t\t\t\t\tgeometry: geometry.geometries[i],\r\n\t\t\t\t\ttype: 'Feature',\r\n\t\t\t\t\tproperties: geojson.properties\r\n\t\t\t\t}, options);\r\n\r\n\t\t\t\tif (layer) {\r\n\t\t\t\t\tlayers.push(layer);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\treturn new L.FeatureGroup(layers);\r\n\r\n\t\tdefault:\r\n\t\t\tthrow new Error('Invalid GeoJSON object.');\r\n\t\t}\r\n\t},\r\n\r\n\t// @function coordsToLatLng(coords: Array): LatLng\r\n\t// Creates a `LatLng` object from an array of 2 numbers (longitude, latitude)\r\n\t// or 3 numbers (longitude, latitude, altitude) used in GeoJSON for points.\r\n\tcoordsToLatLng: function (coords) {\r\n\t\treturn new L.LatLng(coords[1], coords[0], coords[2]);\r\n\t},\r\n\r\n\t// @function coordsToLatLngs(coords: Array, levelsDeep?: Number, coordsToLatLng?: Function): Array\r\n\t// Creates a multidimensional array of `LatLng`s from a GeoJSON coordinates array.\r\n\t// `levelsDeep` specifies the nesting level (0 is for an array of points, 1 for an array of arrays of points, etc., 0 by default).\r\n\t// Can use a custom [`coordsToLatLng`](#geojson-coordstolatlng) function.\r\n\tcoordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) {\r\n\t\tvar latlngs = [];\r\n\r\n\t\tfor (var i = 0, len = coords.length, latlng; i < len; i++) {\r\n\t\t\tlatlng = levelsDeep ?\r\n\t\t\t        this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :\r\n\t\t\t        (coordsToLatLng || this.coordsToLatLng)(coords[i]);\r\n\r\n\t\t\tlatlngs.push(latlng);\r\n\t\t}\r\n\r\n\t\treturn latlngs;\r\n\t},\r\n\r\n\t// @function latLngToCoords(latlng: LatLng): Array\r\n\t// Reverse of [`coordsToLatLng`](#geojson-coordstolatlng)\r\n\tlatLngToCoords: function (latlng) {\r\n\t\treturn latlng.alt !== undefined ?\r\n\t\t\t\t[latlng.lng, latlng.lat, latlng.alt] :\r\n\t\t\t\t[latlng.lng, latlng.lat];\r\n\t},\r\n\r\n\t// @function latLngsToCoords(latlngs: Array, levelsDeep?: Number, closed?: Boolean): Array\r\n\t// Reverse of [`coordsToLatLngs`](#geojson-coordstolatlngs)\r\n\t// `closed` determines whether the first point should be appended to the end of the array to close the feature, only used when `levelsDeep` is 0. False by default.\r\n\tlatLngsToCoords: function (latlngs, levelsDeep, closed) {\r\n\t\tvar coords = [];\r\n\r\n\t\tfor (var i = 0, len = latlngs.length; i < len; i++) {\r\n\t\t\tcoords.push(levelsDeep ?\r\n\t\t\t\tL.GeoJSON.latLngsToCoords(latlngs[i], levelsDeep - 1, closed) :\r\n\t\t\t\tL.GeoJSON.latLngToCoords(latlngs[i]));\r\n\t\t}\r\n\r\n\t\tif (!levelsDeep && closed) {\r\n\t\t\tcoords.push(coords[0]);\r\n\t\t}\r\n\r\n\t\treturn coords;\r\n\t},\r\n\r\n\tgetFeature: function (layer, newGeometry) {\r\n\t\treturn layer.feature ?\r\n\t\t\t\tL.extend({}, layer.feature, {geometry: newGeometry}) :\r\n\t\t\t\tL.GeoJSON.asFeature(newGeometry);\r\n\t},\r\n\r\n\t// @function asFeature(geojson: Object): Object\r\n\t// Normalize GeoJSON geometries/features into GeoJSON features.\r\n\tasFeature: function (geojson) {\r\n\t\tif (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') {\r\n\t\t\treturn geojson;\r\n\t\t}\r\n\r\n\t\treturn {\r\n\t\t\ttype: 'Feature',\r\n\t\t\tproperties: {},\r\n\t\t\tgeometry: geojson\r\n\t\t};\r\n\t}\r\n});\r\n\r\nvar PointToGeoJSON = {\r\n\ttoGeoJSON: function () {\r\n\t\treturn L.GeoJSON.getFeature(this, {\r\n\t\t\ttype: 'Point',\r\n\t\t\tcoordinates: L.GeoJSON.latLngToCoords(this.getLatLng())\r\n\t\t});\r\n\t}\r\n};\r\n\r\n// @namespace Marker\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature).\r\nL.Marker.include(PointToGeoJSON);\r\n\r\n// @namespace CircleMarker\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the circle marker (as a GeoJSON `Point` Feature).\r\nL.Circle.include(PointToGeoJSON);\r\nL.CircleMarker.include(PointToGeoJSON);\r\n\r\n\r\n// @namespace Polyline\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polyline (as a GeoJSON `LineString` or `MultiLineString` Feature).\r\nL.Polyline.prototype.toGeoJSON = function () {\r\n\tvar multi = !L.Polyline._flat(this._latlngs);\r\n\r\n\tvar coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 1 : 0);\r\n\r\n\treturn L.GeoJSON.getFeature(this, {\r\n\t\ttype: (multi ? 'Multi' : '') + 'LineString',\r\n\t\tcoordinates: coords\r\n\t});\r\n};\r\n\r\n// @namespace Polygon\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polygon (as a GeoJSON `Polygon` or `MultiPolygon` Feature).\r\nL.Polygon.prototype.toGeoJSON = function () {\r\n\tvar holes = !L.Polyline._flat(this._latlngs),\r\n\t    multi = holes && !L.Polyline._flat(this._latlngs[0]);\r\n\r\n\tvar coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true);\r\n\r\n\tif (!holes) {\r\n\t\tcoords = [coords];\r\n\t}\r\n\r\n\treturn L.GeoJSON.getFeature(this, {\r\n\t\ttype: (multi ? 'Multi' : '') + 'Polygon',\r\n\t\tcoordinates: coords\r\n\t});\r\n};\r\n\r\n\r\n// @namespace LayerGroup\r\nL.LayerGroup.include({\r\n\ttoMultiPoint: function () {\r\n\t\tvar coords = [];\r\n\r\n\t\tthis.eachLayer(function (layer) {\r\n\t\t\tcoords.push(layer.toGeoJSON().geometry.coordinates);\r\n\t\t});\r\n\r\n\t\treturn L.GeoJSON.getFeature(this, {\r\n\t\t\ttype: 'MultiPoint',\r\n\t\t\tcoordinates: coords\r\n\t\t});\r\n\t},\r\n\r\n\t// @method toGeoJSON(): Object\r\n\t// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `GeometryCollection`).\r\n\ttoGeoJSON: function () {\r\n\r\n\t\tvar type = this.feature && this.feature.geometry && this.feature.geometry.type;\r\n\r\n\t\tif (type === 'MultiPoint') {\r\n\t\t\treturn this.toMultiPoint();\r\n\t\t}\r\n\r\n\t\tvar isGeometryCollection = type === 'GeometryCollection',\r\n\t\t    jsons = [];\r\n\r\n\t\tthis.eachLayer(function (layer) {\r\n\t\t\tif (layer.toGeoJSON) {\r\n\t\t\t\tvar json = layer.toGeoJSON();\r\n\t\t\t\tjsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));\r\n\t\t\t}\r\n\t\t});\r\n\r\n\t\tif (isGeometryCollection) {\r\n\t\t\treturn L.GeoJSON.getFeature(this, {\r\n\t\t\t\tgeometries: jsons,\r\n\t\t\t\ttype: 'GeometryCollection'\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\treturn {\r\n\t\t\ttype: 'FeatureCollection',\r\n\t\t\tfeatures: jsons\r\n\t\t};\r\n\t}\r\n});\r\n\r\n// @namespace GeoJSON\r\n// @factory L.geoJSON(geojson?: Object, options?: GeoJSON options)\r\n// Creates a GeoJSON layer. Optionally accepts an object in\r\n// [GeoJSON format](http://geojson.org/geojson-spec.html) to display on the map\r\n// (you can alternatively add it later with `addData` method) and an `options` object.\r\nL.geoJSON = function (geojson, options) {\r\n\treturn new L.GeoJSON(geojson, options);\r\n};\r\n// Backward compatibility.\r\nL.geoJson = L.geoJSON;\r\n\n\n\n/*\r\n * @class Draggable\r\n * @aka L.Draggable\r\n * @inherits Evented\r\n *\r\n * A class for making DOM elements draggable (including touch support).\r\n * Used internally for map and marker dragging. Only works for elements\r\n * that were positioned with [`L.DomUtil.setPosition`](#domutil-setposition).\r\n *\r\n * @example\r\n * ```js\r\n * var draggable = new L.Draggable(elementToDrag);\r\n * draggable.enable();\r\n * ```\r\n */\r\n\r\nL.Draggable = L.Evented.extend({\r\n\r\n\toptions: {\r\n\t\t// @option clickTolerance: Number = 3\r\n\t\t// The max number of pixels a user can shift the mouse pointer during a click\r\n\t\t// for it to be considered a valid click (as opposed to a mouse drag).\r\n\t\tclickTolerance: 3\r\n\t},\r\n\r\n\tstatics: {\r\n\t\tSTART: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],\r\n\t\tEND: {\r\n\t\t\tmousedown: 'mouseup',\r\n\t\t\ttouchstart: 'touchend',\r\n\t\t\tpointerdown: 'touchend',\r\n\t\t\tMSPointerDown: 'touchend'\r\n\t\t},\r\n\t\tMOVE: {\r\n\t\t\tmousedown: 'mousemove',\r\n\t\t\ttouchstart: 'touchmove',\r\n\t\t\tpointerdown: 'touchmove',\r\n\t\t\tMSPointerDown: 'touchmove'\r\n\t\t}\r\n\t},\r\n\r\n\t// @constructor L.Draggable(el: HTMLElement, dragHandle?: HTMLElement, preventOutline: Boolean)\r\n\t// Creates a `Draggable` object for moving `el` when you start dragging the `dragHandle` element (equals `el` itself by default).\r\n\tinitialize: function (element, dragStartTarget, preventOutline) {\r\n\t\tthis._element = element;\r\n\t\tthis._dragStartTarget = dragStartTarget || element;\r\n\t\tthis._preventOutline = preventOutline;\r\n\t},\r\n\r\n\t// @method enable()\r\n\t// Enables the dragging ability\r\n\tenable: function () {\r\n\t\tif (this._enabled) { return; }\r\n\r\n\t\tL.DomEvent.on(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);\r\n\r\n\t\tthis._enabled = true;\r\n\t},\r\n\r\n\t// @method disable()\r\n\t// Disables the dragging ability\r\n\tdisable: function () {\r\n\t\tif (!this._enabled) { return; }\r\n\r\n\t\t// If we're currently dragging this draggable,\r\n\t\t// disabling it counts as first ending the drag.\r\n\t\tif (L.Draggable._dragging === this) {\r\n\t\t\tthis.finishDrag();\r\n\t\t}\r\n\r\n\t\tL.DomEvent.off(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);\r\n\r\n\t\tthis._enabled = false;\r\n\t\tthis._moved = false;\r\n\t},\r\n\r\n\t_onDown: function (e) {\r\n\t\t// Ignore simulated events, since we handle both touch and\r\n\t\t// mouse explicitly; otherwise we risk getting duplicates of\r\n\t\t// touch events, see #4315.\r\n\t\t// Also ignore the event if disabled; this happens in IE11\r\n\t\t// under some circumstances, see #3666.\r\n\t\tif (e._simulated || !this._enabled) { return; }\r\n\r\n\t\tthis._moved = false;\r\n\r\n\t\tif (L.DomUtil.hasClass(this._element, 'leaflet-zoom-anim')) { return; }\r\n\r\n\t\tif (L.Draggable._dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }\r\n\t\tL.Draggable._dragging = this;  // Prevent dragging multiple objects at once.\r\n\r\n\t\tif (this._preventOutline) {\r\n\t\t\tL.DomUtil.preventOutline(this._element);\r\n\t\t}\r\n\r\n\t\tL.DomUtil.disableImageDrag();\r\n\t\tL.DomUtil.disableTextSelection();\r\n\r\n\t\tif (this._moving) { return; }\r\n\r\n\t\t// @event down: Event\r\n\t\t// Fired when a drag is about to start.\r\n\t\tthis.fire('down');\r\n\r\n\t\tvar first = e.touches ? e.touches[0] : e;\r\n\r\n\t\tthis._startPoint = new L.Point(first.clientX, first.clientY);\r\n\r\n\t\tL.DomEvent\r\n\t\t\t.on(document, L.Draggable.MOVE[e.type], this._onMove, this)\r\n\t\t\t.on(document, L.Draggable.END[e.type], this._onUp, this);\r\n\t},\r\n\r\n\t_onMove: function (e) {\r\n\t\t// Ignore simulated events, since we handle both touch and\r\n\t\t// mouse explicitly; otherwise we risk getting duplicates of\r\n\t\t// touch events, see #4315.\r\n\t\t// Also ignore the event if disabled; this happens in IE11\r\n\t\t// under some circumstances, see #3666.\r\n\t\tif (e._simulated || !this._enabled) { return; }\r\n\r\n\t\tif (e.touches && e.touches.length > 1) {\r\n\t\t\tthis._moved = true;\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tvar first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),\r\n\t\t    newPoint = new L.Point(first.clientX, first.clientY),\r\n\t\t    offset = newPoint.subtract(this._startPoint);\r\n\r\n\t\tif (!offset.x && !offset.y) { return; }\r\n\t\tif (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; }\r\n\r\n\t\tL.DomEvent.preventDefault(e);\r\n\r\n\t\tif (!this._moved) {\r\n\t\t\t// @event dragstart: Event\r\n\t\t\t// Fired when a drag starts\r\n\t\t\tthis.fire('dragstart');\r\n\r\n\t\t\tthis._moved = true;\r\n\t\t\tthis._startPos = L.DomUtil.getPosition(this._element).subtract(offset);\r\n\r\n\t\t\tL.DomUtil.addClass(document.body, 'leaflet-dragging');\r\n\r\n\t\t\tthis._lastTarget = e.target || e.srcElement;\r\n\t\t\t// IE and Edge do not give the <use> element, so fetch it\r\n\t\t\t// if necessary\r\n\t\t\tif ((window.SVGElementInstance) && (this._lastTarget instanceof SVGElementInstance)) {\r\n\t\t\t\tthis._lastTarget = this._lastTarget.correspondingUseElement;\r\n\t\t\t}\r\n\t\t\tL.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');\r\n\t\t}\r\n\r\n\t\tthis._newPos = this._startPos.add(offset);\r\n\t\tthis._moving = true;\r\n\r\n\t\tL.Util.cancelAnimFrame(this._animRequest);\r\n\t\tthis._lastEvent = e;\r\n\t\tthis._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true);\r\n\t},\r\n\r\n\t_updatePosition: function () {\r\n\t\tvar e = {originalEvent: this._lastEvent};\r\n\r\n\t\t// @event predrag: Event\r\n\t\t// Fired continuously during dragging *before* each corresponding\r\n\t\t// update of the element's position.\r\n\t\tthis.fire('predrag', e);\r\n\t\tL.DomUtil.setPosition(this._element, this._newPos);\r\n\r\n\t\t// @event drag: Event\r\n\t\t// Fired continuously during dragging.\r\n\t\tthis.fire('drag', e);\r\n\t},\r\n\r\n\t_onUp: function (e) {\r\n\t\t// Ignore simulated events, since we handle both touch and\r\n\t\t// mouse explicitly; otherwise we risk getting duplicates of\r\n\t\t// touch events, see #4315.\r\n\t\t// Also ignore the event if disabled; this happens in IE11\r\n\t\t// under some circumstances, see #3666.\r\n\t\tif (e._simulated || !this._enabled) { return; }\r\n\t\tthis.finishDrag();\r\n\t},\r\n\r\n\tfinishDrag: function () {\r\n\t\tL.DomUtil.removeClass(document.body, 'leaflet-dragging');\r\n\r\n\t\tif (this._lastTarget) {\r\n\t\t\tL.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');\r\n\t\t\tthis._lastTarget = null;\r\n\t\t}\r\n\r\n\t\tfor (var i in L.Draggable.MOVE) {\r\n\t\t\tL.DomEvent\r\n\t\t\t\t.off(document, L.Draggable.MOVE[i], this._onMove, this)\r\n\t\t\t\t.off(document, L.Draggable.END[i], this._onUp, this);\r\n\t\t}\r\n\r\n\t\tL.DomUtil.enableImageDrag();\r\n\t\tL.DomUtil.enableTextSelection();\r\n\r\n\t\tif (this._moved && this._moving) {\r\n\t\t\t// ensure drag is not fired after dragend\r\n\t\t\tL.Util.cancelAnimFrame(this._animRequest);\r\n\r\n\t\t\t// @event dragend: DragEndEvent\r\n\t\t\t// Fired when the drag ends.\r\n\t\t\tthis.fire('dragend', {\r\n\t\t\t\tdistance: this._newPos.distanceTo(this._startPos)\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tthis._moving = false;\r\n\t\tL.Draggable._dragging = false;\r\n\t}\r\n\r\n});\r\n\n\n\n/*\n\tL.Handler is a base class for handler classes that are used internally to inject\n\tinteraction features like dragging to classes like Map and Marker.\n*/\n\n// @class Handler\n// @aka L.Handler\n// Abstract class for map interaction handlers\n\nL.Handler = L.Class.extend({\n\tinitialize: function (map) {\n\t\tthis._map = map;\n\t},\n\n\t// @method enable(): this\n\t// Enables the handler\n\tenable: function () {\n\t\tif (this._enabled) { return this; }\n\n\t\tthis._enabled = true;\n\t\tthis.addHooks();\n\t\treturn this;\n\t},\n\n\t// @method disable(): this\n\t// Disables the handler\n\tdisable: function () {\n\t\tif (!this._enabled) { return this; }\n\n\t\tthis._enabled = false;\n\t\tthis.removeHooks();\n\t\treturn this;\n\t},\n\n\t// @method enabled(): Boolean\n\t// Returns `true` if the handler is enabled\n\tenabled: function () {\n\t\treturn !!this._enabled;\n\t}\n\n\t// @section Extension methods\n\t// Classes inheriting from `Handler` must implement the two following methods:\n\t// @method addHooks()\n\t// Called when the handler is enabled, should add event hooks.\n\t// @method removeHooks()\n\t// Called when the handler is disabled, should remove the event hooks added previously.\n});\n\n\n\n/*\n * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @option dragging: Boolean = true\n\t// Whether the map be draggable with mouse/touch or not.\n\tdragging: true,\n\n\t// @section Panning Inertia Options\n\t// @option inertia: Boolean = *\n\t// If enabled, panning of the map will have an inertia effect where\n\t// the map builds momentum while dragging and continues moving in\n\t// the same direction for some time. Feels especially nice on touch\n\t// devices. Enabled by default unless running on old Android devices.\n\tinertia: !L.Browser.android23,\n\n\t// @option inertiaDeceleration: Number = 3000\n\t// The rate with which the inertial movement slows down, in pixels/second².\n\tinertiaDeceleration: 3400, // px/s^2\n\n\t// @option inertiaMaxSpeed: Number = Infinity\n\t// Max speed of the inertial movement, in pixels/second.\n\tinertiaMaxSpeed: Infinity, // px/s\n\n\t// @option easeLinearity: Number = 0.2\n\teaseLinearity: 0.2,\n\n\t// TODO refactor, move to CRS\n\t// @option worldCopyJump: Boolean = false\n\t// With this option enabled, the map tracks when you pan to another \"copy\"\n\t// of the world and seamlessly jumps to the original one so that all overlays\n\t// like markers and vector layers are still visible.\n\tworldCopyJump: false,\n\n\t// @option maxBoundsViscosity: Number = 0.0\n\t// If `maxBounds` is set, this option will control how solid the bounds\n\t// are when dragging the map around. The default value of `0.0` allows the\n\t// user to drag outside the bounds at normal speed, higher values will\n\t// slow down map dragging outside bounds, and `1.0` makes the bounds fully\n\t// solid, preventing the user from dragging outside the bounds.\n\tmaxBoundsViscosity: 0.0\n});\n\nL.Map.Drag = L.Handler.extend({\n\taddHooks: function () {\n\t\tif (!this._draggable) {\n\t\t\tvar map = this._map;\n\n\t\t\tthis._draggable = new L.Draggable(map._mapPane, map._container);\n\n\t\t\tthis._draggable.on({\n\t\t\t\tdown: this._onDown,\n\t\t\t\tdragstart: this._onDragStart,\n\t\t\t\tdrag: this._onDrag,\n\t\t\t\tdragend: this._onDragEnd\n\t\t\t}, this);\n\n\t\t\tthis._draggable.on('predrag', this._onPreDragLimit, this);\n\t\t\tif (map.options.worldCopyJump) {\n\t\t\t\tthis._draggable.on('predrag', this._onPreDragWrap, this);\n\t\t\t\tmap.on('zoomend', this._onZoomEnd, this);\n\n\t\t\t\tmap.whenReady(this._onZoomEnd, this);\n\t\t\t}\n\t\t}\n\t\tL.DomUtil.addClass(this._map._container, 'leaflet-grab leaflet-touch-drag');\n\t\tthis._draggable.enable();\n\t\tthis._positions = [];\n\t\tthis._times = [];\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomUtil.removeClass(this._map._container, 'leaflet-grab');\n\t\tL.DomUtil.removeClass(this._map._container, 'leaflet-touch-drag');\n\t\tthis._draggable.disable();\n\t},\n\n\tmoved: function () {\n\t\treturn this._draggable && this._draggable._moved;\n\t},\n\n\tmoving: function () {\n\t\treturn this._draggable && this._draggable._moving;\n\t},\n\n\t_onDown: function () {\n\t\tthis._map._stop();\n\t},\n\n\t_onDragStart: function () {\n\t\tvar map = this._map;\n\n\t\tif (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) {\n\t\t\tvar bounds = L.latLngBounds(this._map.options.maxBounds);\n\n\t\t\tthis._offsetLimit = L.bounds(\n\t\t\t\tthis._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1),\n\t\t\t\tthis._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1)\n\t\t\t\t\t.add(this._map.getSize()));\n\n\t\t\tthis._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity));\n\t\t} else {\n\t\t\tthis._offsetLimit = null;\n\t\t}\n\n\t\tmap\n\t\t    .fire('movestart')\n\t\t    .fire('dragstart');\n\n\t\tif (map.options.inertia) {\n\t\t\tthis._positions = [];\n\t\t\tthis._times = [];\n\t\t}\n\t},\n\n\t_onDrag: function (e) {\n\t\tif (this._map.options.inertia) {\n\t\t\tvar time = this._lastTime = +new Date(),\n\t\t\t    pos = this._lastPos = this._draggable._absPos || this._draggable._newPos;\n\n\t\t\tthis._positions.push(pos);\n\t\t\tthis._times.push(time);\n\n\t\t\tif (time - this._times[0] > 50) {\n\t\t\t\tthis._positions.shift();\n\t\t\t\tthis._times.shift();\n\t\t\t}\n\t\t}\n\n\t\tthis._map\n\t\t    .fire('move', e)\n\t\t    .fire('drag', e);\n\t},\n\n\t_onZoomEnd: function () {\n\t\tvar pxCenter = this._map.getSize().divideBy(2),\n\t\t    pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);\n\n\t\tthis._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;\n\t\tthis._worldWidth = this._map.getPixelWorldBounds().getSize().x;\n\t},\n\n\t_viscousLimit: function (value, threshold) {\n\t\treturn value - (value - threshold) * this._viscosity;\n\t},\n\n\t_onPreDragLimit: function () {\n\t\tif (!this._viscosity || !this._offsetLimit) { return; }\n\n\t\tvar offset = this._draggable._newPos.subtract(this._draggable._startPos);\n\n\t\tvar limit = this._offsetLimit;\n\t\tif (offset.x < limit.min.x) { offset.x = this._viscousLimit(offset.x, limit.min.x); }\n\t\tif (offset.y < limit.min.y) { offset.y = this._viscousLimit(offset.y, limit.min.y); }\n\t\tif (offset.x > limit.max.x) { offset.x = this._viscousLimit(offset.x, limit.max.x); }\n\t\tif (offset.y > limit.max.y) { offset.y = this._viscousLimit(offset.y, limit.max.y); }\n\n\t\tthis._draggable._newPos = this._draggable._startPos.add(offset);\n\t},\n\n\t_onPreDragWrap: function () {\n\t\t// TODO refactor to be able to adjust map pane position after zoom\n\t\tvar worldWidth = this._worldWidth,\n\t\t    halfWidth = Math.round(worldWidth / 2),\n\t\t    dx = this._initialWorldOffset,\n\t\t    x = this._draggable._newPos.x,\n\t\t    newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,\n\t\t    newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,\n\t\t    newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;\n\n\t\tthis._draggable._absPos = this._draggable._newPos.clone();\n\t\tthis._draggable._newPos.x = newX;\n\t},\n\n\t_onDragEnd: function (e) {\n\t\tvar map = this._map,\n\t\t    options = map.options,\n\n\t\t    noInertia = !options.inertia || this._times.length < 2;\n\n\t\tmap.fire('dragend', e);\n\n\t\tif (noInertia) {\n\t\t\tmap.fire('moveend');\n\n\t\t} else {\n\n\t\t\tvar direction = this._lastPos.subtract(this._positions[0]),\n\t\t\t    duration = (this._lastTime - this._times[0]) / 1000,\n\t\t\t    ease = options.easeLinearity,\n\n\t\t\t    speedVector = direction.multiplyBy(ease / duration),\n\t\t\t    speed = speedVector.distanceTo([0, 0]),\n\n\t\t\t    limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),\n\t\t\t    limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),\n\n\t\t\t    decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),\n\t\t\t    offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();\n\n\t\t\tif (!offset.x && !offset.y) {\n\t\t\t\tmap.fire('moveend');\n\n\t\t\t} else {\n\t\t\t\toffset = map._limitOffset(offset, map.options.maxBounds);\n\n\t\t\t\tL.Util.requestAnimFrame(function () {\n\t\t\t\t\tmap.panBy(offset, {\n\t\t\t\t\t\tduration: decelerationDuration,\n\t\t\t\t\t\teaseLinearity: ease,\n\t\t\t\t\t\tnoMoveStart: true,\n\t\t\t\t\t\tanimate: true\n\t\t\t\t\t});\n\t\t\t\t});\n\t\t\t}\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property dragging: Handler\n// Map dragging handler (by both mouse and touch).\nL.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);\n\n\n\n/*\n * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.\n */\n\n// @namespace Map\n// @section Interaction Options\n\nL.Map.mergeOptions({\n\t// @option doubleClickZoom: Boolean|String = true\n\t// Whether the map can be zoomed in by double clicking on it and\n\t// zoomed out by double clicking while holding shift. If passed\n\t// `'center'`, double-click zoom will zoom to the center of the\n\t//  view regardless of where the mouse was.\n\tdoubleClickZoom: true\n});\n\nL.Map.DoubleClickZoom = L.Handler.extend({\n\taddHooks: function () {\n\t\tthis._map.on('dblclick', this._onDoubleClick, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tthis._map.off('dblclick', this._onDoubleClick, this);\n\t},\n\n\t_onDoubleClick: function (e) {\n\t\tvar map = this._map,\n\t\t    oldZoom = map.getZoom(),\n\t\t    delta = map.options.zoomDelta,\n\t\t    zoom = e.originalEvent.shiftKey ? oldZoom - delta : oldZoom + delta;\n\n\t\tif (map.options.doubleClickZoom === 'center') {\n\t\t\tmap.setZoom(zoom);\n\t\t} else {\n\t\t\tmap.setZoomAround(e.containerPoint, zoom);\n\t\t}\n\t}\n});\n\n// @section Handlers\n//\n// Map properties include interaction handlers that allow you to control\n// interaction behavior in runtime, enabling or disabling certain features such\n// as dragging or touch zoom (see `Handler` methods). For example:\n//\n// ```js\n// map.doubleClickZoom.disable();\n// ```\n//\n// @property doubleClickZoom: Handler\n// Double click zoom handler.\nL.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);\n\n\n\n/*\n * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @section Mousewheel options\n\t// @option scrollWheelZoom: Boolean|String = true\n\t// Whether the map can be zoomed by using the mouse wheel. If passed `'center'`,\n\t// it will zoom to the center of the view regardless of where the mouse was.\n\tscrollWheelZoom: true,\n\n\t// @option wheelDebounceTime: Number = 40\n\t// Limits the rate at which a wheel can fire (in milliseconds). By default\n\t// user can't zoom via wheel more often than once per 40 ms.\n\twheelDebounceTime: 40,\n\n\t// @option wheelPxPerZoomLevel: Number = 60\n\t// How many scroll pixels (as reported by [L.DomEvent.getWheelDelta](#domevent-getwheeldelta))\n\t// mean a change of one full zoom level. Smaller values will make wheel-zooming\n\t// faster (and vice versa).\n\twheelPxPerZoomLevel: 60\n});\n\nL.Map.ScrollWheelZoom = L.Handler.extend({\n\taddHooks: function () {\n\t\tL.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);\n\n\t\tthis._delta = 0;\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll, this);\n\t},\n\n\t_onWheelScroll: function (e) {\n\t\tvar delta = L.DomEvent.getWheelDelta(e);\n\n\t\tvar debounce = this._map.options.wheelDebounceTime;\n\n\t\tthis._delta += delta;\n\t\tthis._lastMousePos = this._map.mouseEventToContainerPoint(e);\n\n\t\tif (!this._startTime) {\n\t\t\tthis._startTime = +new Date();\n\t\t}\n\n\t\tvar left = Math.max(debounce - (+new Date() - this._startTime), 0);\n\n\t\tclearTimeout(this._timer);\n\t\tthis._timer = setTimeout(L.bind(this._performZoom, this), left);\n\n\t\tL.DomEvent.stop(e);\n\t},\n\n\t_performZoom: function () {\n\t\tvar map = this._map,\n\t\t    zoom = map.getZoom(),\n\t\t    snap = this._map.options.zoomSnap || 0;\n\n\t\tmap._stop(); // stop panning and fly animations if any\n\n\t\t// map the delta with a sigmoid function to -4..4 range leaning on -1..1\n\t\tvar d2 = this._delta / (this._map.options.wheelPxPerZoomLevel * 4),\n\t\t    d3 = 4 * Math.log(2 / (1 + Math.exp(-Math.abs(d2)))) / Math.LN2,\n\t\t    d4 = snap ? Math.ceil(d3 / snap) * snap : d3,\n\t\t    delta = map._limitZoom(zoom + (this._delta > 0 ? d4 : -d4)) - zoom;\n\n\t\tthis._delta = 0;\n\t\tthis._startTime = null;\n\n\t\tif (!delta) { return; }\n\n\t\tif (map.options.scrollWheelZoom === 'center') {\n\t\t\tmap.setZoom(zoom + delta);\n\t\t} else {\n\t\t\tmap.setZoomAround(this._lastMousePos, zoom + delta);\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property scrollWheelZoom: Handler\n// Scroll wheel zoom handler.\nL.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);\n\n\n\n/*\r\n * Extends the event handling code with double tap support for mobile browsers.\r\n */\r\n\r\nL.extend(L.DomEvent, {\r\n\r\n\t_touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',\r\n\t_touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',\r\n\r\n\t// inspired by Zepto touch code by Thomas Fuchs\r\n\taddDoubleTapListener: function (obj, handler, id) {\r\n\t\tvar last, touch,\r\n\t\t    doubleTap = false,\r\n\t\t    delay = 250;\r\n\r\n\t\tfunction onTouchStart(e) {\r\n\t\t\tvar count;\r\n\r\n\t\t\tif (L.Browser.pointer) {\r\n\t\t\t\tif ((!L.Browser.edge) || e.pointerType === 'mouse') { return; }\r\n\t\t\t\tcount = L.DomEvent._pointersCount;\r\n\t\t\t} else {\r\n\t\t\t\tcount = e.touches.length;\r\n\t\t\t}\r\n\r\n\t\t\tif (count > 1) { return; }\r\n\r\n\t\t\tvar now = Date.now(),\r\n\t\t\t    delta = now - (last || now);\r\n\r\n\t\t\ttouch = e.touches ? e.touches[0] : e;\r\n\t\t\tdoubleTap = (delta > 0 && delta <= delay);\r\n\t\t\tlast = now;\r\n\t\t}\r\n\r\n\t\tfunction onTouchEnd(e) {\r\n\t\t\tif (doubleTap && !touch.cancelBubble) {\r\n\t\t\t\tif (L.Browser.pointer) {\r\n\t\t\t\t\tif ((!L.Browser.edge) || e.pointerType === 'mouse') { return; }\r\n\r\n\t\t\t\t\t// work around .type being readonly with MSPointer* events\r\n\t\t\t\t\tvar newTouch = {},\r\n\t\t\t\t\t    prop, i;\r\n\r\n\t\t\t\t\tfor (i in touch) {\r\n\t\t\t\t\t\tprop = touch[i];\r\n\t\t\t\t\t\tnewTouch[i] = prop && prop.bind ? prop.bind(touch) : prop;\r\n\t\t\t\t\t}\r\n\t\t\t\t\ttouch = newTouch;\r\n\t\t\t\t}\r\n\t\t\t\ttouch.type = 'dblclick';\r\n\t\t\t\thandler(touch);\r\n\t\t\t\tlast = null;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tvar pre = '_leaflet_',\r\n\t\t    touchstart = this._touchstart,\r\n\t\t    touchend = this._touchend;\r\n\r\n\t\tobj[pre + touchstart + id] = onTouchStart;\r\n\t\tobj[pre + touchend + id] = onTouchEnd;\r\n\t\tobj[pre + 'dblclick' + id] = handler;\r\n\r\n\t\tobj.addEventListener(touchstart, onTouchStart, false);\r\n\t\tobj.addEventListener(touchend, onTouchEnd, false);\r\n\r\n\t\t// On some platforms (notably, chrome<55 on win10 + touchscreen + mouse),\r\n\t\t// the browser doesn't fire touchend/pointerup events but does fire\r\n\t\t// native dblclicks. See #4127.\r\n\t\t// Edge 14 also fires native dblclicks, but only for pointerType mouse, see #5180.\r\n\t\tobj.addEventListener('dblclick', handler, false);\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\tremoveDoubleTapListener: function (obj, id) {\r\n\t\tvar pre = '_leaflet_',\r\n\t\t    touchstart = obj[pre + this._touchstart + id],\r\n\t\t    touchend = obj[pre + this._touchend + id],\r\n\t\t    dblclick = obj[pre + 'dblclick' + id];\r\n\r\n\t\tobj.removeEventListener(this._touchstart, touchstart, false);\r\n\t\tobj.removeEventListener(this._touchend, touchend, false);\r\n\t\tif (!L.Browser.edge) {\r\n\t\t\tobj.removeEventListener('dblclick', dblclick, false);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t}\r\n});\r\n\n\n\n/*\n * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.\n */\n\nL.extend(L.DomEvent, {\n\n\tPOINTER_DOWN:   L.Browser.msPointer ? 'MSPointerDown'   : 'pointerdown',\n\tPOINTER_MOVE:   L.Browser.msPointer ? 'MSPointerMove'   : 'pointermove',\n\tPOINTER_UP:     L.Browser.msPointer ? 'MSPointerUp'     : 'pointerup',\n\tPOINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',\n\tTAG_WHITE_LIST: ['INPUT', 'SELECT', 'OPTION'],\n\n\t_pointers: {},\n\t_pointersCount: 0,\n\n\t// Provides a touch events wrapper for (ms)pointer events.\n\t// ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890\n\n\taddPointerListener: function (obj, type, handler, id) {\n\n\t\tif (type === 'touchstart') {\n\t\t\tthis._addPointerStart(obj, handler, id);\n\n\t\t} else if (type === 'touchmove') {\n\t\t\tthis._addPointerMove(obj, handler, id);\n\n\t\t} else if (type === 'touchend') {\n\t\t\tthis._addPointerEnd(obj, handler, id);\n\t\t}\n\n\t\treturn this;\n\t},\n\n\tremovePointerListener: function (obj, type, id) {\n\t\tvar handler = obj['_leaflet_' + type + id];\n\n\t\tif (type === 'touchstart') {\n\t\t\tobj.removeEventListener(this.POINTER_DOWN, handler, false);\n\n\t\t} else if (type === 'touchmove') {\n\t\t\tobj.removeEventListener(this.POINTER_MOVE, handler, false);\n\n\t\t} else if (type === 'touchend') {\n\t\t\tobj.removeEventListener(this.POINTER_UP, handler, false);\n\t\t\tobj.removeEventListener(this.POINTER_CANCEL, handler, false);\n\t\t}\n\n\t\treturn this;\n\t},\n\n\t_addPointerStart: function (obj, handler, id) {\n\t\tvar onDown = L.bind(function (e) {\n\t\t\tif (e.pointerType !== 'mouse' && e.MSPOINTER_TYPE_MOUSE && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {\n\t\t\t\t// In IE11, some touch events needs to fire for form controls, or\n\t\t\t\t// the controls will stop working. We keep a whitelist of tag names that\n\t\t\t\t// need these events. For other target tags, we prevent default on the event.\n\t\t\t\tif (this.TAG_WHITE_LIST.indexOf(e.target.tagName) < 0) {\n\t\t\t\t\tL.DomEvent.preventDefault(e);\n\t\t\t\t} else {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tthis._handlePointer(e, handler);\n\t\t}, this);\n\n\t\tobj['_leaflet_touchstart' + id] = onDown;\n\t\tobj.addEventListener(this.POINTER_DOWN, onDown, false);\n\n\t\t// need to keep track of what pointers and how many are active to provide e.touches emulation\n\t\tif (!this._pointerDocListener) {\n\t\t\tvar pointerUp = L.bind(this._globalPointerUp, this);\n\n\t\t\t// we listen documentElement as any drags that end by moving the touch off the screen get fired there\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_DOWN, L.bind(this._globalPointerDown, this), true);\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_MOVE, L.bind(this._globalPointerMove, this), true);\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_UP, pointerUp, true);\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_CANCEL, pointerUp, true);\n\n\t\t\tthis._pointerDocListener = true;\n\t\t}\n\t},\n\n\t_globalPointerDown: function (e) {\n\t\tthis._pointers[e.pointerId] = e;\n\t\tthis._pointersCount++;\n\t},\n\n\t_globalPointerMove: function (e) {\n\t\tif (this._pointers[e.pointerId]) {\n\t\t\tthis._pointers[e.pointerId] = e;\n\t\t}\n\t},\n\n\t_globalPointerUp: function (e) {\n\t\tdelete this._pointers[e.pointerId];\n\t\tthis._pointersCount--;\n\t},\n\n\t_handlePointer: function (e, handler) {\n\t\te.touches = [];\n\t\tfor (var i in this._pointers) {\n\t\t\te.touches.push(this._pointers[i]);\n\t\t}\n\t\te.changedTouches = [e];\n\n\t\thandler(e);\n\t},\n\n\t_addPointerMove: function (obj, handler, id) {\n\t\tvar onMove = L.bind(function (e) {\n\t\t\t// don't fire touch moves when mouse isn't down\n\t\t\tif ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }\n\n\t\t\tthis._handlePointer(e, handler);\n\t\t}, this);\n\n\t\tobj['_leaflet_touchmove' + id] = onMove;\n\t\tobj.addEventListener(this.POINTER_MOVE, onMove, false);\n\t},\n\n\t_addPointerEnd: function (obj, handler, id) {\n\t\tvar onUp = L.bind(function (e) {\n\t\t\tthis._handlePointer(e, handler);\n\t\t}, this);\n\n\t\tobj['_leaflet_touchend' + id] = onUp;\n\t\tobj.addEventListener(this.POINTER_UP, onUp, false);\n\t\tobj.addEventListener(this.POINTER_CANCEL, onUp, false);\n\t}\n});\n\n\n\n/*\n * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @section Touch interaction options\n\t// @option touchZoom: Boolean|String = *\n\t// Whether the map can be zoomed by touch-dragging with two fingers. If\n\t// passed `'center'`, it will zoom to the center of the view regardless of\n\t// where the touch events (fingers) were. Enabled for touch-capable web\n\t// browsers except for old Androids.\n\ttouchZoom: L.Browser.touch && !L.Browser.android23,\n\n\t// @option bounceAtZoomLimits: Boolean = true\n\t// Set it to false if you don't want the map to zoom beyond min/max zoom\n\t// and then bounce back when pinch-zooming.\n\tbounceAtZoomLimits: true\n});\n\nL.Map.TouchZoom = L.Handler.extend({\n\taddHooks: function () {\n\t\tL.DomUtil.addClass(this._map._container, 'leaflet-touch-zoom');\n\t\tL.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomUtil.removeClass(this._map._container, 'leaflet-touch-zoom');\n\t\tL.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);\n\t},\n\n\t_onTouchStart: function (e) {\n\t\tvar map = this._map;\n\t\tif (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }\n\n\t\tvar p1 = map.mouseEventToContainerPoint(e.touches[0]),\n\t\t    p2 = map.mouseEventToContainerPoint(e.touches[1]);\n\n\t\tthis._centerPoint = map.getSize()._divideBy(2);\n\t\tthis._startLatLng = map.containerPointToLatLng(this._centerPoint);\n\t\tif (map.options.touchZoom !== 'center') {\n\t\t\tthis._pinchStartLatLng = map.containerPointToLatLng(p1.add(p2)._divideBy(2));\n\t\t}\n\n\t\tthis._startDist = p1.distanceTo(p2);\n\t\tthis._startZoom = map.getZoom();\n\n\t\tthis._moved = false;\n\t\tthis._zooming = true;\n\n\t\tmap._stop();\n\n\t\tL.DomEvent\n\t\t    .on(document, 'touchmove', this._onTouchMove, this)\n\t\t    .on(document, 'touchend', this._onTouchEnd, this);\n\n\t\tL.DomEvent.preventDefault(e);\n\t},\n\n\t_onTouchMove: function (e) {\n\t\tif (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }\n\n\t\tvar map = this._map,\n\t\t    p1 = map.mouseEventToContainerPoint(e.touches[0]),\n\t\t    p2 = map.mouseEventToContainerPoint(e.touches[1]),\n\t\t    scale = p1.distanceTo(p2) / this._startDist;\n\n\n\t\tthis._zoom = map.getScaleZoom(scale, this._startZoom);\n\n\t\tif (!map.options.bounceAtZoomLimits && (\n\t\t\t(this._zoom < map.getMinZoom() && scale < 1) ||\n\t\t\t(this._zoom > map.getMaxZoom() && scale > 1))) {\n\t\t\tthis._zoom = map._limitZoom(this._zoom);\n\t\t}\n\n\t\tif (map.options.touchZoom === 'center') {\n\t\t\tthis._center = this._startLatLng;\n\t\t\tif (scale === 1) { return; }\n\t\t} else {\n\t\t\t// Get delta from pinch to center, so centerLatLng is delta applied to initial pinchLatLng\n\t\t\tvar delta = p1._add(p2)._divideBy(2)._subtract(this._centerPoint);\n\t\t\tif (scale === 1 && delta.x === 0 && delta.y === 0) { return; }\n\t\t\tthis._center = map.unproject(map.project(this._pinchStartLatLng, this._zoom).subtract(delta), this._zoom);\n\t\t}\n\n\t\tif (!this._moved) {\n\t\t\tmap._moveStart(true);\n\t\t\tthis._moved = true;\n\t\t}\n\n\t\tL.Util.cancelAnimFrame(this._animRequest);\n\n\t\tvar moveFn = L.bind(map._move, map, this._center, this._zoom, {pinch: true, round: false});\n\t\tthis._animRequest = L.Util.requestAnimFrame(moveFn, this, true);\n\n\t\tL.DomEvent.preventDefault(e);\n\t},\n\n\t_onTouchEnd: function () {\n\t\tif (!this._moved || !this._zooming) {\n\t\t\tthis._zooming = false;\n\t\t\treturn;\n\t\t}\n\n\t\tthis._zooming = false;\n\t\tL.Util.cancelAnimFrame(this._animRequest);\n\n\t\tL.DomEvent\n\t\t    .off(document, 'touchmove', this._onTouchMove)\n\t\t    .off(document, 'touchend', this._onTouchEnd);\n\n\t\t// Pinch updates GridLayers' levels only when zoomSnap is off, so zoomSnap becomes noUpdate.\n\t\tif (this._map.options.zoomAnimation) {\n\t\t\tthis._map._animateZoom(this._center, this._map._limitZoom(this._zoom), true, this._map.options.zoomSnap);\n\t\t} else {\n\t\t\tthis._map._resetView(this._center, this._map._limitZoom(this._zoom));\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property touchZoom: Handler\n// Touch zoom handler.\nL.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);\n\n\n\n/*\n * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @section Touch interaction options\n\t// @option tap: Boolean = true\n\t// Enables mobile hacks for supporting instant taps (fixing 200ms click\n\t// delay on iOS/Android) and touch holds (fired as `contextmenu` events).\n\ttap: true,\n\n\t// @option tapTolerance: Number = 15\n\t// The max number of pixels a user can shift his finger during touch\n\t// for it to be considered a valid tap.\n\ttapTolerance: 15\n});\n\nL.Map.Tap = L.Handler.extend({\n\taddHooks: function () {\n\t\tL.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);\n\t},\n\n\t_onDown: function (e) {\n\t\tif (!e.touches) { return; }\n\n\t\tL.DomEvent.preventDefault(e);\n\n\t\tthis._fireClick = true;\n\n\t\t// don't simulate click or track longpress if more than 1 touch\n\t\tif (e.touches.length > 1) {\n\t\t\tthis._fireClick = false;\n\t\t\tclearTimeout(this._holdTimeout);\n\t\t\treturn;\n\t\t}\n\n\t\tvar first = e.touches[0],\n\t\t    el = first.target;\n\n\t\tthis._startPos = this._newPos = new L.Point(first.clientX, first.clientY);\n\n\t\t// if touching a link, highlight it\n\t\tif (el.tagName && el.tagName.toLowerCase() === 'a') {\n\t\t\tL.DomUtil.addClass(el, 'leaflet-active');\n\t\t}\n\n\t\t// simulate long hold but setting a timeout\n\t\tthis._holdTimeout = setTimeout(L.bind(function () {\n\t\t\tif (this._isTapValid()) {\n\t\t\t\tthis._fireClick = false;\n\t\t\t\tthis._onUp();\n\t\t\t\tthis._simulateEvent('contextmenu', first);\n\t\t\t}\n\t\t}, this), 1000);\n\n\t\tthis._simulateEvent('mousedown', first);\n\n\t\tL.DomEvent.on(document, {\n\t\t\ttouchmove: this._onMove,\n\t\t\ttouchend: this._onUp\n\t\t}, this);\n\t},\n\n\t_onUp: function (e) {\n\t\tclearTimeout(this._holdTimeout);\n\n\t\tL.DomEvent.off(document, {\n\t\t\ttouchmove: this._onMove,\n\t\t\ttouchend: this._onUp\n\t\t}, this);\n\n\t\tif (this._fireClick && e && e.changedTouches) {\n\n\t\t\tvar first = e.changedTouches[0],\n\t\t\t    el = first.target;\n\n\t\t\tif (el && el.tagName && el.tagName.toLowerCase() === 'a') {\n\t\t\t\tL.DomUtil.removeClass(el, 'leaflet-active');\n\t\t\t}\n\n\t\t\tthis._simulateEvent('mouseup', first);\n\n\t\t\t// simulate click if the touch didn't move too much\n\t\t\tif (this._isTapValid()) {\n\t\t\t\tthis._simulateEvent('click', first);\n\t\t\t}\n\t\t}\n\t},\n\n\t_isTapValid: function () {\n\t\treturn this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;\n\t},\n\n\t_onMove: function (e) {\n\t\tvar first = e.touches[0];\n\t\tthis._newPos = new L.Point(first.clientX, first.clientY);\n\t\tthis._simulateEvent('mousemove', first);\n\t},\n\n\t_simulateEvent: function (type, e) {\n\t\tvar simulatedEvent = document.createEvent('MouseEvents');\n\n\t\tsimulatedEvent._simulated = true;\n\t\te.target._simulatedClick = true;\n\n\t\tsimulatedEvent.initMouseEvent(\n\t\t        type, true, true, window, 1,\n\t\t        e.screenX, e.screenY,\n\t\t        e.clientX, e.clientY,\n\t\t        false, false, false, false, 0, null);\n\n\t\te.target.dispatchEvent(simulatedEvent);\n\t}\n});\n\n// @section Handlers\n// @property tap: Handler\n// Mobile touch hacks (quick tap and touch hold) handler.\nif (L.Browser.touch && !L.Browser.pointer) {\n\tL.Map.addInitHook('addHandler', 'tap', L.Map.Tap);\n}\n\n\n\n/*\n * L.Handler.BoxZoom is used to add shift-drag zoom interaction to the map\n * (zoom to a selected bounding box), enabled by default.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @option boxZoom: Boolean = true\n\t// Whether the map can be zoomed to a rectangular area specified by\n\t// dragging the mouse while pressing the shift key.\n\tboxZoom: true\n});\n\nL.Map.BoxZoom = L.Handler.extend({\n\tinitialize: function (map) {\n\t\tthis._map = map;\n\t\tthis._container = map._container;\n\t\tthis._pane = map._panes.overlayPane;\n\t},\n\n\taddHooks: function () {\n\t\tL.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomEvent.off(this._container, 'mousedown', this._onMouseDown, this);\n\t},\n\n\tmoved: function () {\n\t\treturn this._moved;\n\t},\n\n\t_resetState: function () {\n\t\tthis._moved = false;\n\t},\n\n\t_onMouseDown: function (e) {\n\t\tif (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }\n\n\t\tthis._resetState();\n\n\t\tL.DomUtil.disableTextSelection();\n\t\tL.DomUtil.disableImageDrag();\n\n\t\tthis._startPoint = this._map.mouseEventToContainerPoint(e);\n\n\t\tL.DomEvent.on(document, {\n\t\t\tcontextmenu: L.DomEvent.stop,\n\t\t\tmousemove: this._onMouseMove,\n\t\t\tmouseup: this._onMouseUp,\n\t\t\tkeydown: this._onKeyDown\n\t\t}, this);\n\t},\n\n\t_onMouseMove: function (e) {\n\t\tif (!this._moved) {\n\t\t\tthis._moved = true;\n\n\t\t\tthis._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._container);\n\t\t\tL.DomUtil.addClass(this._container, 'leaflet-crosshair');\n\n\t\t\tthis._map.fire('boxzoomstart');\n\t\t}\n\n\t\tthis._point = this._map.mouseEventToContainerPoint(e);\n\n\t\tvar bounds = new L.Bounds(this._point, this._startPoint),\n\t\t    size = bounds.getSize();\n\n\t\tL.DomUtil.setPosition(this._box, bounds.min);\n\n\t\tthis._box.style.width  = size.x + 'px';\n\t\tthis._box.style.height = size.y + 'px';\n\t},\n\n\t_finish: function () {\n\t\tif (this._moved) {\n\t\t\tL.DomUtil.remove(this._box);\n\t\t\tL.DomUtil.removeClass(this._container, 'leaflet-crosshair');\n\t\t}\n\n\t\tL.DomUtil.enableTextSelection();\n\t\tL.DomUtil.enableImageDrag();\n\n\t\tL.DomEvent.off(document, {\n\t\t\tcontextmenu: L.DomEvent.stop,\n\t\t\tmousemove: this._onMouseMove,\n\t\t\tmouseup: this._onMouseUp,\n\t\t\tkeydown: this._onKeyDown\n\t\t}, this);\n\t},\n\n\t_onMouseUp: function (e) {\n\t\tif ((e.which !== 1) && (e.button !== 1)) { return; }\n\n\t\tthis._finish();\n\n\t\tif (!this._moved) { return; }\n\t\t// Postpone to next JS tick so internal click event handling\n\t\t// still see it as \"moved\".\n\t\tsetTimeout(L.bind(this._resetState, this), 0);\n\n\t\tvar bounds = new L.LatLngBounds(\n\t\t        this._map.containerPointToLatLng(this._startPoint),\n\t\t        this._map.containerPointToLatLng(this._point));\n\n\t\tthis._map\n\t\t\t.fitBounds(bounds)\n\t\t\t.fire('boxzoomend', {boxZoomBounds: bounds});\n\t},\n\n\t_onKeyDown: function (e) {\n\t\tif (e.keyCode === 27) {\n\t\t\tthis._finish();\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property boxZoom: Handler\n// Box (shift-drag with mouse) zoom handler.\nL.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);\n\n\n\n/*\n * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.\n */\n\n// @namespace Map\n// @section Keyboard Navigation Options\nL.Map.mergeOptions({\n\t// @option keyboard: Boolean = true\n\t// Makes the map focusable and allows users to navigate the map with keyboard\n\t// arrows and `+`/`-` keys.\n\tkeyboard: true,\n\n\t// @option keyboardPanDelta: Number = 80\n\t// Amount of pixels to pan when pressing an arrow key.\n\tkeyboardPanDelta: 80\n});\n\nL.Map.Keyboard = L.Handler.extend({\n\n\tkeyCodes: {\n\t\tleft:    [37],\n\t\tright:   [39],\n\t\tdown:    [40],\n\t\tup:      [38],\n\t\tzoomIn:  [187, 107, 61, 171],\n\t\tzoomOut: [189, 109, 54, 173]\n\t},\n\n\tinitialize: function (map) {\n\t\tthis._map = map;\n\n\t\tthis._setPanDelta(map.options.keyboardPanDelta);\n\t\tthis._setZoomDelta(map.options.zoomDelta);\n\t},\n\n\taddHooks: function () {\n\t\tvar container = this._map._container;\n\n\t\t// make the container focusable by tabbing\n\t\tif (container.tabIndex <= 0) {\n\t\t\tcontainer.tabIndex = '0';\n\t\t}\n\n\t\tL.DomEvent.on(container, {\n\t\t\tfocus: this._onFocus,\n\t\t\tblur: this._onBlur,\n\t\t\tmousedown: this._onMouseDown\n\t\t}, this);\n\n\t\tthis._map.on({\n\t\t\tfocus: this._addHooks,\n\t\t\tblur: this._removeHooks\n\t\t}, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tthis._removeHooks();\n\n\t\tL.DomEvent.off(this._map._container, {\n\t\t\tfocus: this._onFocus,\n\t\t\tblur: this._onBlur,\n\t\t\tmousedown: this._onMouseDown\n\t\t}, this);\n\n\t\tthis._map.off({\n\t\t\tfocus: this._addHooks,\n\t\t\tblur: this._removeHooks\n\t\t}, this);\n\t},\n\n\t_onMouseDown: function () {\n\t\tif (this._focused) { return; }\n\n\t\tvar body = document.body,\n\t\t    docEl = document.documentElement,\n\t\t    top = body.scrollTop || docEl.scrollTop,\n\t\t    left = body.scrollLeft || docEl.scrollLeft;\n\n\t\tthis._map._container.focus();\n\n\t\twindow.scrollTo(left, top);\n\t},\n\n\t_onFocus: function () {\n\t\tthis._focused = true;\n\t\tthis._map.fire('focus');\n\t},\n\n\t_onBlur: function () {\n\t\tthis._focused = false;\n\t\tthis._map.fire('blur');\n\t},\n\n\t_setPanDelta: function (panDelta) {\n\t\tvar keys = this._panKeys = {},\n\t\t    codes = this.keyCodes,\n\t\t    i, len;\n\n\t\tfor (i = 0, len = codes.left.length; i < len; i++) {\n\t\t\tkeys[codes.left[i]] = [-1 * panDelta, 0];\n\t\t}\n\t\tfor (i = 0, len = codes.right.length; i < len; i++) {\n\t\t\tkeys[codes.right[i]] = [panDelta, 0];\n\t\t}\n\t\tfor (i = 0, len = codes.down.length; i < len; i++) {\n\t\t\tkeys[codes.down[i]] = [0, panDelta];\n\t\t}\n\t\tfor (i = 0, len = codes.up.length; i < len; i++) {\n\t\t\tkeys[codes.up[i]] = [0, -1 * panDelta];\n\t\t}\n\t},\n\n\t_setZoomDelta: function (zoomDelta) {\n\t\tvar keys = this._zoomKeys = {},\n\t\t    codes = this.keyCodes,\n\t\t    i, len;\n\n\t\tfor (i = 0, len = codes.zoomIn.length; i < len; i++) {\n\t\t\tkeys[codes.zoomIn[i]] = zoomDelta;\n\t\t}\n\t\tfor (i = 0, len = codes.zoomOut.length; i < len; i++) {\n\t\t\tkeys[codes.zoomOut[i]] = -zoomDelta;\n\t\t}\n\t},\n\n\t_addHooks: function () {\n\t\tL.DomEvent.on(document, 'keydown', this._onKeyDown, this);\n\t},\n\n\t_removeHooks: function () {\n\t\tL.DomEvent.off(document, 'keydown', this._onKeyDown, this);\n\t},\n\n\t_onKeyDown: function (e) {\n\t\tif (e.altKey || e.ctrlKey || e.metaKey) { return; }\n\n\t\tvar key = e.keyCode,\n\t\t    map = this._map,\n\t\t    offset;\n\n\t\tif (key in this._panKeys) {\n\n\t\t\tif (map._panAnim && map._panAnim._inProgress) { return; }\n\n\t\t\toffset = this._panKeys[key];\n\t\t\tif (e.shiftKey) {\n\t\t\t\toffset = L.point(offset).multiplyBy(3);\n\t\t\t}\n\n\t\t\tmap.panBy(offset);\n\n\t\t\tif (map.options.maxBounds) {\n\t\t\t\tmap.panInsideBounds(map.options.maxBounds);\n\t\t\t}\n\n\t\t} else if (key in this._zoomKeys) {\n\t\t\tmap.setZoom(map.getZoom() + (e.shiftKey ? 3 : 1) * this._zoomKeys[key]);\n\n\t\t} else if (key === 27) {\n\t\t\tmap.closePopup();\n\n\t\t} else {\n\t\t\treturn;\n\t\t}\n\n\t\tL.DomEvent.stop(e);\n\t}\n});\n\n// @section Handlers\n// @section Handlers\n// @property keyboard: Handler\n// Keyboard navigation handler.\nL.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);\n\n\n\n/*\n * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.\n */\n\n\n/* @namespace Marker\n * @section Interaction handlers\n *\n * Interaction handlers are properties of a marker instance that allow you to control interaction behavior in runtime, enabling or disabling certain features such as dragging (see `Handler` methods). Example:\n *\n * ```js\n * marker.dragging.disable();\n * ```\n *\n * @property dragging: Handler\n * Marker dragging handler (by both mouse and touch).\n */\n\nL.Handler.MarkerDrag = L.Handler.extend({\n\tinitialize: function (marker) {\n\t\tthis._marker = marker;\n\t},\n\n\taddHooks: function () {\n\t\tvar icon = this._marker._icon;\n\n\t\tif (!this._draggable) {\n\t\t\tthis._draggable = new L.Draggable(icon, icon, true);\n\t\t}\n\n\t\tthis._draggable.on({\n\t\t\tdragstart: this._onDragStart,\n\t\t\tdrag: this._onDrag,\n\t\t\tdragend: this._onDragEnd\n\t\t}, this).enable();\n\n\t\tL.DomUtil.addClass(icon, 'leaflet-marker-draggable');\n\t},\n\n\tremoveHooks: function () {\n\t\tthis._draggable.off({\n\t\t\tdragstart: this._onDragStart,\n\t\t\tdrag: this._onDrag,\n\t\t\tdragend: this._onDragEnd\n\t\t}, this).disable();\n\n\t\tif (this._marker._icon) {\n\t\t\tL.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');\n\t\t}\n\t},\n\n\tmoved: function () {\n\t\treturn this._draggable && this._draggable._moved;\n\t},\n\n\t_onDragStart: function () {\n\t\t// @section Dragging events\n\t\t// @event dragstart: Event\n\t\t// Fired when the user starts dragging the marker.\n\n\t\t// @event movestart: Event\n\t\t// Fired when the marker starts moving (because of dragging).\n\n\t\tthis._oldLatLng = this._marker.getLatLng();\n\t\tthis._marker\n\t\t    .closePopup()\n\t\t    .fire('movestart')\n\t\t    .fire('dragstart');\n\t},\n\n\t_onDrag: function (e) {\n\t\tvar marker = this._marker,\n\t\t    shadow = marker._shadow,\n\t\t    iconPos = L.DomUtil.getPosition(marker._icon),\n\t\t    latlng = marker._map.layerPointToLatLng(iconPos);\n\n\t\t// update shadow position\n\t\tif (shadow) {\n\t\t\tL.DomUtil.setPosition(shadow, iconPos);\n\t\t}\n\n\t\tmarker._latlng = latlng;\n\t\te.latlng = latlng;\n\t\te.oldLatLng = this._oldLatLng;\n\n\t\t// @event drag: Event\n\t\t// Fired repeatedly while the user drags the marker.\n\t\tmarker\n\t\t    .fire('move', e)\n\t\t    .fire('drag', e);\n\t},\n\n\t_onDragEnd: function (e) {\n\t\t// @event dragend: DragEndEvent\n\t\t// Fired when the user stops dragging the marker.\n\n\t\t// @event moveend: Event\n\t\t// Fired when the marker stops moving (because of dragging).\n\t\tdelete this._oldLatLng;\n\t\tthis._marker\n\t\t    .fire('moveend')\n\t\t    .fire('dragend', e);\n\t}\n});\n\n\n\n/*\r\n * @class Control\r\n * @aka L.Control\r\n * @inherits Class\r\n *\r\n * L.Control is a base class for implementing map controls. Handles positioning.\r\n * All other controls extend from this class.\r\n */\r\n\r\nL.Control = L.Class.extend({\r\n\t// @section\r\n\t// @aka Control options\r\n\toptions: {\r\n\t\t// @option position: String = 'topright'\r\n\t\t// The position of the control (one of the map corners). Possible values are `'topleft'`,\r\n\t\t// `'topright'`, `'bottomleft'` or `'bottomright'`\r\n\t\tposition: 'topright'\r\n\t},\r\n\r\n\tinitialize: function (options) {\r\n\t\tL.setOptions(this, options);\r\n\t},\r\n\r\n\t/* @section\r\n\t * Classes extending L.Control will inherit the following methods:\r\n\t *\r\n\t * @method getPosition: string\r\n\t * Returns the position of the control.\r\n\t */\r\n\tgetPosition: function () {\r\n\t\treturn this.options.position;\r\n\t},\r\n\r\n\t// @method setPosition(position: string): this\r\n\t// Sets the position of the control.\r\n\tsetPosition: function (position) {\r\n\t\tvar map = this._map;\r\n\r\n\t\tif (map) {\r\n\t\t\tmap.removeControl(this);\r\n\t\t}\r\n\r\n\t\tthis.options.position = position;\r\n\r\n\t\tif (map) {\r\n\t\t\tmap.addControl(this);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getContainer: HTMLElement\r\n\t// Returns the HTMLElement that contains the control.\r\n\tgetContainer: function () {\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\t// @method addTo(map: Map): this\r\n\t// Adds the control to the given map.\r\n\taddTo: function (map) {\r\n\t\tthis.remove();\r\n\t\tthis._map = map;\r\n\r\n\t\tvar container = this._container = this.onAdd(map),\r\n\t\t    pos = this.getPosition(),\r\n\t\t    corner = map._controlCorners[pos];\r\n\r\n\t\tL.DomUtil.addClass(container, 'leaflet-control');\r\n\r\n\t\tif (pos.indexOf('bottom') !== -1) {\r\n\t\t\tcorner.insertBefore(container, corner.firstChild);\r\n\t\t} else {\r\n\t\t\tcorner.appendChild(container);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method remove: this\r\n\t// Removes the control from the map it is currently active on.\r\n\tremove: function () {\r\n\t\tif (!this._map) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tL.DomUtil.remove(this._container);\r\n\r\n\t\tif (this.onRemove) {\r\n\t\t\tthis.onRemove(this._map);\r\n\t\t}\r\n\r\n\t\tthis._map = null;\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_refocusOnMap: function (e) {\r\n\t\t// if map exists and event is not a keyboard event\r\n\t\tif (this._map && e && e.screenX > 0 && e.screenY > 0) {\r\n\t\t\tthis._map.getContainer().focus();\r\n\t\t}\r\n\t}\r\n});\r\n\r\nL.control = function (options) {\r\n\treturn new L.Control(options);\r\n};\r\n\r\n/* @section Extension methods\r\n * @uninheritable\r\n *\r\n * Every control should extend from `L.Control` and (re-)implement the following methods.\r\n *\r\n * @method onAdd(map: Map): HTMLElement\r\n * Should return the container DOM element for the control and add listeners on relevant map events. Called on [`control.addTo(map)`](#control-addTo).\r\n *\r\n * @method onRemove(map: Map)\r\n * Optional method. Should contain all clean up code that removes the listeners previously added in [`onAdd`](#control-onadd). Called on [`control.remove()`](#control-remove).\r\n */\r\n\r\n/* @namespace Map\r\n * @section Methods for Layers and Controls\r\n */\r\nL.Map.include({\r\n\t// @method addControl(control: Control): this\r\n\t// Adds the given control to the map\r\n\taddControl: function (control) {\r\n\t\tcontrol.addTo(this);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeControl(control: Control): this\r\n\t// Removes the given control from the map\r\n\tremoveControl: function (control) {\r\n\t\tcontrol.remove();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_initControlPos: function () {\r\n\t\tvar corners = this._controlCorners = {},\r\n\t\t    l = 'leaflet-',\r\n\t\t    container = this._controlContainer =\r\n\t\t            L.DomUtil.create('div', l + 'control-container', this._container);\r\n\r\n\t\tfunction createCorner(vSide, hSide) {\r\n\t\t\tvar className = l + vSide + ' ' + l + hSide;\r\n\r\n\t\t\tcorners[vSide + hSide] = L.DomUtil.create('div', className, container);\r\n\t\t}\r\n\r\n\t\tcreateCorner('top', 'left');\r\n\t\tcreateCorner('top', 'right');\r\n\t\tcreateCorner('bottom', 'left');\r\n\t\tcreateCorner('bottom', 'right');\r\n\t},\r\n\r\n\t_clearControlPos: function () {\r\n\t\tL.DomUtil.remove(this._controlContainer);\r\n\t}\r\n});\r\n\n\n\n/*\r\n * @class Control.Zoom\r\n * @aka L.Control.Zoom\r\n * @inherits Control\r\n *\r\n * A basic zoom control with two buttons (zoom in and zoom out). It is put on the map by default unless you set its [`zoomControl` option](#map-zoomcontrol) to `false`. Extends `Control`.\r\n */\r\n\r\nL.Control.Zoom = L.Control.extend({\r\n\t// @section\r\n\t// @aka Control.Zoom options\r\n\toptions: {\r\n\t\tposition: 'topleft',\r\n\r\n\t\t// @option zoomInText: String = '+'\r\n\t\t// The text set on the 'zoom in' button.\r\n\t\tzoomInText: '+',\r\n\r\n\t\t// @option zoomInTitle: String = 'Zoom in'\r\n\t\t// The title set on the 'zoom in' button.\r\n\t\tzoomInTitle: 'Zoom in',\r\n\r\n\t\t// @option zoomOutText: String = '-'\r\n\t\t// The text set on the 'zoom out' button.\r\n\t\tzoomOutText: '-',\r\n\r\n\t\t// @option zoomOutTitle: String = 'Zoom out'\r\n\t\t// The title set on the 'zoom out' button.\r\n\t\tzoomOutTitle: 'Zoom out'\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tvar zoomName = 'leaflet-control-zoom',\r\n\t\t    container = L.DomUtil.create('div', zoomName + ' leaflet-bar'),\r\n\t\t    options = this.options;\r\n\r\n\t\tthis._zoomInButton  = this._createButton(options.zoomInText, options.zoomInTitle,\r\n\t\t        zoomName + '-in',  container, this._zoomIn);\r\n\t\tthis._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle,\r\n\t\t        zoomName + '-out', container, this._zoomOut);\r\n\r\n\t\tthis._updateDisabled();\r\n\t\tmap.on('zoomend zoomlevelschange', this._updateDisabled, this);\r\n\r\n\t\treturn container;\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tmap.off('zoomend zoomlevelschange', this._updateDisabled, this);\r\n\t},\r\n\r\n\tdisable: function () {\r\n\t\tthis._disabled = true;\r\n\t\tthis._updateDisabled();\r\n\t\treturn this;\r\n\t},\r\n\r\n\tenable: function () {\r\n\t\tthis._disabled = false;\r\n\t\tthis._updateDisabled();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_zoomIn: function (e) {\r\n\t\tif (!this._disabled && this._map._zoom < this._map.getMaxZoom()) {\r\n\t\t\tthis._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));\r\n\t\t}\r\n\t},\r\n\r\n\t_zoomOut: function (e) {\r\n\t\tif (!this._disabled && this._map._zoom > this._map.getMinZoom()) {\r\n\t\t\tthis._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));\r\n\t\t}\r\n\t},\r\n\r\n\t_createButton: function (html, title, className, container, fn) {\r\n\t\tvar link = L.DomUtil.create('a', className, container);\r\n\t\tlink.innerHTML = html;\r\n\t\tlink.href = '#';\r\n\t\tlink.title = title;\r\n\r\n\t\t/*\r\n\t\t * Will force screen readers like VoiceOver to read this as \"Zoom in - button\"\r\n\t\t */\r\n\t\tlink.setAttribute('role', 'button');\r\n\t\tlink.setAttribute('aria-label', title);\r\n\r\n\t\tL.DomEvent\r\n\t\t    .on(link, 'mousedown dblclick', L.DomEvent.stopPropagation)\r\n\t\t    .on(link, 'click', L.DomEvent.stop)\r\n\t\t    .on(link, 'click', fn, this)\r\n\t\t    .on(link, 'click', this._refocusOnMap, this);\r\n\r\n\t\treturn link;\r\n\t},\r\n\r\n\t_updateDisabled: function () {\r\n\t\tvar map = this._map,\r\n\t\t    className = 'leaflet-disabled';\r\n\r\n\t\tL.DomUtil.removeClass(this._zoomInButton, className);\r\n\t\tL.DomUtil.removeClass(this._zoomOutButton, className);\r\n\r\n\t\tif (this._disabled || map._zoom === map.getMinZoom()) {\r\n\t\t\tL.DomUtil.addClass(this._zoomOutButton, className);\r\n\t\t}\r\n\t\tif (this._disabled || map._zoom === map.getMaxZoom()) {\r\n\t\t\tL.DomUtil.addClass(this._zoomInButton, className);\r\n\t\t}\r\n\t}\r\n});\r\n\r\n// @namespace Map\r\n// @section Control options\r\n// @option zoomControl: Boolean = true\r\n// Whether a [zoom control](#control-zoom) is added to the map by default.\r\nL.Map.mergeOptions({\r\n\tzoomControl: true\r\n});\r\n\r\nL.Map.addInitHook(function () {\r\n\tif (this.options.zoomControl) {\r\n\t\tthis.zoomControl = new L.Control.Zoom();\r\n\t\tthis.addControl(this.zoomControl);\r\n\t}\r\n});\r\n\r\n// @namespace Control.Zoom\r\n// @factory L.control.zoom(options: Control.Zoom options)\r\n// Creates a zoom control\r\nL.control.zoom = function (options) {\r\n\treturn new L.Control.Zoom(options);\r\n};\r\n\n\n\n/*\r\n * @class Control.Attribution\r\n * @aka L.Control.Attribution\r\n * @inherits Control\r\n *\r\n * The attribution control allows you to display attribution data in a small text box on a map. It is put on the map by default unless you set its [`attributionControl` option](#map-attributioncontrol) to `false`, and it fetches attribution texts from layers with the [`getAttribution` method](#layer-getattribution) automatically. Extends Control.\r\n */\r\n\r\nL.Control.Attribution = L.Control.extend({\r\n\t// @section\r\n\t// @aka Control.Attribution options\r\n\toptions: {\r\n\t\tposition: 'bottomright',\r\n\r\n\t\t// @option prefix: String = 'Leaflet'\r\n\t\t// The HTML text shown before the attributions. Pass `false` to disable.\r\n\t\tprefix: '<a href=\"http://leafletjs.com\" title=\"A JS library for interactive maps\">Leaflet</a>'\r\n\t},\r\n\r\n\tinitialize: function (options) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._attributions = {};\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tmap.attributionControl = this;\r\n\t\tthis._container = L.DomUtil.create('div', 'leaflet-control-attribution');\r\n\t\tif (L.DomEvent) {\r\n\t\t\tL.DomEvent.disableClickPropagation(this._container);\r\n\t\t}\r\n\r\n\t\t// TODO ugly, refactor\r\n\t\tfor (var i in map._layers) {\r\n\t\t\tif (map._layers[i].getAttribution) {\r\n\t\t\t\tthis.addAttribution(map._layers[i].getAttribution());\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tthis._update();\r\n\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\t// @method setPrefix(prefix: String): this\r\n\t// Sets the text before the attributions.\r\n\tsetPrefix: function (prefix) {\r\n\t\tthis.options.prefix = prefix;\r\n\t\tthis._update();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method addAttribution(text: String): this\r\n\t// Adds an attribution text (e.g. `'Vector data &copy; Mapbox'`).\r\n\taddAttribution: function (text) {\r\n\t\tif (!text) { return this; }\r\n\r\n\t\tif (!this._attributions[text]) {\r\n\t\t\tthis._attributions[text] = 0;\r\n\t\t}\r\n\t\tthis._attributions[text]++;\r\n\r\n\t\tthis._update();\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeAttribution(text: String): this\r\n\t// Removes an attribution text.\r\n\tremoveAttribution: function (text) {\r\n\t\tif (!text) { return this; }\r\n\r\n\t\tif (this._attributions[text]) {\r\n\t\t\tthis._attributions[text]--;\r\n\t\t\tthis._update();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_update: function () {\r\n\t\tif (!this._map) { return; }\r\n\r\n\t\tvar attribs = [];\r\n\r\n\t\tfor (var i in this._attributions) {\r\n\t\t\tif (this._attributions[i]) {\r\n\t\t\t\tattribs.push(i);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tvar prefixAndAttribs = [];\r\n\r\n\t\tif (this.options.prefix) {\r\n\t\t\tprefixAndAttribs.push(this.options.prefix);\r\n\t\t}\r\n\t\tif (attribs.length) {\r\n\t\t\tprefixAndAttribs.push(attribs.join(', '));\r\n\t\t}\r\n\r\n\t\tthis._container.innerHTML = prefixAndAttribs.join(' | ');\r\n\t}\r\n});\r\n\r\n// @namespace Map\r\n// @section Control options\r\n// @option attributionControl: Boolean = true\r\n// Whether a [attribution control](#control-attribution) is added to the map by default.\r\nL.Map.mergeOptions({\r\n\tattributionControl: true\r\n});\r\n\r\nL.Map.addInitHook(function () {\r\n\tif (this.options.attributionControl) {\r\n\t\tnew L.Control.Attribution().addTo(this);\r\n\t}\r\n});\r\n\r\n// @namespace Control.Attribution\r\n// @factory L.control.attribution(options: Control.Attribution options)\r\n// Creates an attribution control.\r\nL.control.attribution = function (options) {\r\n\treturn new L.Control.Attribution(options);\r\n};\r\n\n\n\n/*\n * @class Control.Scale\n * @aka L.Control.Scale\n * @inherits Control\n *\n * A simple scale control that shows the scale of the current center of screen in metric (m/km) and imperial (mi/ft) systems. Extends `Control`.\n *\n * @example\n *\n * ```js\n * L.control.scale().addTo(map);\n * ```\n */\n\nL.Control.Scale = L.Control.extend({\n\t// @section\n\t// @aka Control.Scale options\n\toptions: {\n\t\tposition: 'bottomleft',\n\n\t\t// @option maxWidth: Number = 100\n\t\t// Maximum width of the control in pixels. The width is set dynamically to show round values (e.g. 100, 200, 500).\n\t\tmaxWidth: 100,\n\n\t\t// @option metric: Boolean = True\n\t\t// Whether to show the metric scale line (m/km).\n\t\tmetric: true,\n\n\t\t// @option imperial: Boolean = True\n\t\t// Whether to show the imperial scale line (mi/ft).\n\t\timperial: true\n\n\t\t// @option updateWhenIdle: Boolean = false\n\t\t// If `true`, the control is updated on [`moveend`](#map-moveend), otherwise it's always up-to-date (updated on [`move`](#map-move)).\n\t},\n\n\tonAdd: function (map) {\n\t\tvar className = 'leaflet-control-scale',\n\t\t    container = L.DomUtil.create('div', className),\n\t\t    options = this.options;\n\n\t\tthis._addScales(options, className + '-line', container);\n\n\t\tmap.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);\n\t\tmap.whenReady(this._update, this);\n\n\t\treturn container;\n\t},\n\n\tonRemove: function (map) {\n\t\tmap.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);\n\t},\n\n\t_addScales: function (options, className, container) {\n\t\tif (options.metric) {\n\t\t\tthis._mScale = L.DomUtil.create('div', className, container);\n\t\t}\n\t\tif (options.imperial) {\n\t\t\tthis._iScale = L.DomUtil.create('div', className, container);\n\t\t}\n\t},\n\n\t_update: function () {\n\t\tvar map = this._map,\n\t\t    y = map.getSize().y / 2;\n\n\t\tvar maxMeters = map.distance(\n\t\t\t\tmap.containerPointToLatLng([0, y]),\n\t\t\t\tmap.containerPointToLatLng([this.options.maxWidth, y]));\n\n\t\tthis._updateScales(maxMeters);\n\t},\n\n\t_updateScales: function (maxMeters) {\n\t\tif (this.options.metric && maxMeters) {\n\t\t\tthis._updateMetric(maxMeters);\n\t\t}\n\t\tif (this.options.imperial && maxMeters) {\n\t\t\tthis._updateImperial(maxMeters);\n\t\t}\n\t},\n\n\t_updateMetric: function (maxMeters) {\n\t\tvar meters = this._getRoundNum(maxMeters),\n\t\t    label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';\n\n\t\tthis._updateScale(this._mScale, label, meters / maxMeters);\n\t},\n\n\t_updateImperial: function (maxMeters) {\n\t\tvar maxFeet = maxMeters * 3.2808399,\n\t\t    maxMiles, miles, feet;\n\n\t\tif (maxFeet > 5280) {\n\t\t\tmaxMiles = maxFeet / 5280;\n\t\t\tmiles = this._getRoundNum(maxMiles);\n\t\t\tthis._updateScale(this._iScale, miles + ' mi', miles / maxMiles);\n\n\t\t} else {\n\t\t\tfeet = this._getRoundNum(maxFeet);\n\t\t\tthis._updateScale(this._iScale, feet + ' ft', feet / maxFeet);\n\t\t}\n\t},\n\n\t_updateScale: function (scale, text, ratio) {\n\t\tscale.style.width = Math.round(this.options.maxWidth * ratio) + 'px';\n\t\tscale.innerHTML = text;\n\t},\n\n\t_getRoundNum: function (num) {\n\t\tvar pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),\n\t\t    d = num / pow10;\n\n\t\td = d >= 10 ? 10 :\n\t\t    d >= 5 ? 5 :\n\t\t    d >= 3 ? 3 :\n\t\t    d >= 2 ? 2 : 1;\n\n\t\treturn pow10 * d;\n\t}\n});\n\n\n// @factory L.control.scale(options?: Control.Scale options)\n// Creates an scale control with the given options.\nL.control.scale = function (options) {\n\treturn new L.Control.Scale(options);\n};\n\n\n\n/*\r\n * @class Control.Layers\r\n * @aka L.Control.Layers\r\n * @inherits Control\r\n *\r\n * The layers control gives users the ability to switch between different base layers and switch overlays on/off (check out the [detailed example](http://leafletjs.com/examples/layers-control.html)). Extends `Control`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var baseLayers = {\r\n * \t\"Mapbox\": mapbox,\r\n * \t\"OpenStreetMap\": osm\r\n * };\r\n *\r\n * var overlays = {\r\n * \t\"Marker\": marker,\r\n * \t\"Roads\": roadsLayer\r\n * };\r\n *\r\n * L.control.layers(baseLayers, overlays).addTo(map);\r\n * ```\r\n *\r\n * The `baseLayers` and `overlays` parameters are object literals with layer names as keys and `Layer` objects as values:\r\n *\r\n * ```js\r\n * {\r\n *     \"<someName1>\": layer1,\r\n *     \"<someName2>\": layer2\r\n * }\r\n * ```\r\n *\r\n * The layer names can contain HTML, which allows you to add additional styling to the items:\r\n *\r\n * ```js\r\n * {\"<img src='my-layer-icon' /> <span class='my-layer-item'>My Layer</span>\": myLayer}\r\n * ```\r\n */\r\n\r\n\r\nL.Control.Layers = L.Control.extend({\r\n\t// @section\r\n\t// @aka Control.Layers options\r\n\toptions: {\r\n\t\t// @option collapsed: Boolean = true\r\n\t\t// If `true`, the control will be collapsed into an icon and expanded on mouse hover or touch.\r\n\t\tcollapsed: true,\r\n\t\tposition: 'topright',\r\n\r\n\t\t// @option autoZIndex: Boolean = true\r\n\t\t// If `true`, the control will assign zIndexes in increasing order to all of its layers so that the order is preserved when switching them on/off.\r\n\t\tautoZIndex: true,\r\n\r\n\t\t// @option hideSingleBase: Boolean = false\r\n\t\t// If `true`, the base layers in the control will be hidden when there is only one.\r\n\t\thideSingleBase: false,\r\n\r\n\t\t// @option sortLayers: Boolean = false\r\n\t\t// Whether to sort the layers. When `false`, layers will keep the order\r\n\t\t// in which they were added to the control.\r\n\t\tsortLayers: false,\r\n\r\n\t\t// @option sortFunction: Function = *\r\n\t\t// A [compare function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort)\r\n\t\t// that will be used for sorting the layers, when `sortLayers` is `true`.\r\n\t\t// The function receives both the `L.Layer` instances and their names, as in\r\n\t\t// `sortFunction(layerA, layerB, nameA, nameB)`.\r\n\t\t// By default, it sorts layers alphabetically by their name.\r\n\t\tsortFunction: function (layerA, layerB, nameA, nameB) {\r\n\t\t\treturn nameA < nameB ? -1 : (nameB < nameA ? 1 : 0);\r\n\t\t}\r\n\t},\r\n\r\n\tinitialize: function (baseLayers, overlays, options) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._layers = [];\r\n\t\tthis._lastZIndex = 0;\r\n\t\tthis._handlingClick = false;\r\n\r\n\t\tfor (var i in baseLayers) {\r\n\t\t\tthis._addLayer(baseLayers[i], i);\r\n\t\t}\r\n\r\n\t\tfor (i in overlays) {\r\n\t\t\tthis._addLayer(overlays[i], i, true);\r\n\t\t}\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tthis._initLayout();\r\n\t\tthis._update();\r\n\r\n\t\tthis._map = map;\r\n\t\tmap.on('zoomend', this._checkDisabledLayers, this);\r\n\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\tonRemove: function () {\r\n\t\tthis._map.off('zoomend', this._checkDisabledLayers, this);\r\n\r\n\t\tfor (var i = 0; i < this._layers.length; i++) {\r\n\t\t\tthis._layers[i].layer.off('add remove', this._onLayerChange, this);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method addBaseLayer(layer: Layer, name: String): this\r\n\t// Adds a base layer (radio button entry) with the given name to the control.\r\n\taddBaseLayer: function (layer, name) {\r\n\t\tthis._addLayer(layer, name);\r\n\t\treturn (this._map) ? this._update() : this;\r\n\t},\r\n\r\n\t// @method addOverlay(layer: Layer, name: String): this\r\n\t// Adds an overlay (checkbox entry) with the given name to the control.\r\n\taddOverlay: function (layer, name) {\r\n\t\tthis._addLayer(layer, name, true);\r\n\t\treturn (this._map) ? this._update() : this;\r\n\t},\r\n\r\n\t// @method removeLayer(layer: Layer): this\r\n\t// Remove the given layer from the control.\r\n\tremoveLayer: function (layer) {\r\n\t\tlayer.off('add remove', this._onLayerChange, this);\r\n\r\n\t\tvar obj = this._getLayer(L.stamp(layer));\r\n\t\tif (obj) {\r\n\t\t\tthis._layers.splice(this._layers.indexOf(obj), 1);\r\n\t\t}\r\n\t\treturn (this._map) ? this._update() : this;\r\n\t},\r\n\r\n\t// @method expand(): this\r\n\t// Expand the control container if collapsed.\r\n\texpand: function () {\r\n\t\tL.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');\r\n\t\tthis._form.style.height = null;\r\n\t\tvar acceptableHeight = this._map.getSize().y - (this._container.offsetTop + 50);\r\n\t\tif (acceptableHeight < this._form.clientHeight) {\r\n\t\t\tL.DomUtil.addClass(this._form, 'leaflet-control-layers-scrollbar');\r\n\t\t\tthis._form.style.height = acceptableHeight + 'px';\r\n\t\t} else {\r\n\t\t\tL.DomUtil.removeClass(this._form, 'leaflet-control-layers-scrollbar');\r\n\t\t}\r\n\t\tthis._checkDisabledLayers();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method collapse(): this\r\n\t// Collapse the control container if expanded.\r\n\tcollapse: function () {\r\n\t\tL.DomUtil.removeClass(this._container, 'leaflet-control-layers-expanded');\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_initLayout: function () {\r\n\t\tvar className = 'leaflet-control-layers',\r\n\t\t    container = this._container = L.DomUtil.create('div', className),\r\n\t\t    collapsed = this.options.collapsed;\r\n\r\n\t\t// makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released\r\n\t\tcontainer.setAttribute('aria-haspopup', true);\r\n\r\n\t\tL.DomEvent.disableClickPropagation(container);\r\n\t\tif (!L.Browser.touch) {\r\n\t\t\tL.DomEvent.disableScrollPropagation(container);\r\n\t\t}\r\n\r\n\t\tvar form = this._form = L.DomUtil.create('form', className + '-list');\r\n\r\n\t\tif (collapsed) {\r\n\t\t\tthis._map.on('click', this.collapse, this);\r\n\r\n\t\t\tif (!L.Browser.android) {\r\n\t\t\t\tL.DomEvent.on(container, {\r\n\t\t\t\t\tmouseenter: this.expand,\r\n\t\t\t\t\tmouseleave: this.collapse\r\n\t\t\t\t}, this);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tvar link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);\r\n\t\tlink.href = '#';\r\n\t\tlink.title = 'Layers';\r\n\r\n\t\tif (L.Browser.touch) {\r\n\t\t\tL.DomEvent\r\n\t\t\t    .on(link, 'click', L.DomEvent.stop)\r\n\t\t\t    .on(link, 'click', this.expand, this);\r\n\t\t} else {\r\n\t\t\tL.DomEvent.on(link, 'focus', this.expand, this);\r\n\t\t}\r\n\r\n\t\t// work around for Firefox Android issue https://github.com/Leaflet/Leaflet/issues/2033\r\n\t\tL.DomEvent.on(form, 'click', function () {\r\n\t\t\tsetTimeout(L.bind(this._onInputClick, this), 0);\r\n\t\t}, this);\r\n\r\n\t\t// TODO keyboard accessibility\r\n\r\n\t\tif (!collapsed) {\r\n\t\t\tthis.expand();\r\n\t\t}\r\n\r\n\t\tthis._baseLayersList = L.DomUtil.create('div', className + '-base', form);\r\n\t\tthis._separator = L.DomUtil.create('div', className + '-separator', form);\r\n\t\tthis._overlaysList = L.DomUtil.create('div', className + '-overlays', form);\r\n\r\n\t\tcontainer.appendChild(form);\r\n\t},\r\n\r\n\t_getLayer: function (id) {\r\n\t\tfor (var i = 0; i < this._layers.length; i++) {\r\n\r\n\t\t\tif (this._layers[i] && L.stamp(this._layers[i].layer) === id) {\r\n\t\t\t\treturn this._layers[i];\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t_addLayer: function (layer, name, overlay) {\r\n\t\tlayer.on('add remove', this._onLayerChange, this);\r\n\r\n\t\tthis._layers.push({\r\n\t\t\tlayer: layer,\r\n\t\t\tname: name,\r\n\t\t\toverlay: overlay\r\n\t\t});\r\n\r\n\t\tif (this.options.sortLayers) {\r\n\t\t\tthis._layers.sort(L.bind(function (a, b) {\r\n\t\t\t\treturn this.options.sortFunction(a.layer, b.layer, a.name, b.name);\r\n\t\t\t}, this));\r\n\t\t}\r\n\r\n\t\tif (this.options.autoZIndex && layer.setZIndex) {\r\n\t\t\tthis._lastZIndex++;\r\n\t\t\tlayer.setZIndex(this._lastZIndex);\r\n\t\t}\r\n\t},\r\n\r\n\t_update: function () {\r\n\t\tif (!this._container) { return this; }\r\n\r\n\t\tL.DomUtil.empty(this._baseLayersList);\r\n\t\tL.DomUtil.empty(this._overlaysList);\r\n\r\n\t\tvar baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0;\r\n\r\n\t\tfor (i = 0; i < this._layers.length; i++) {\r\n\t\t\tobj = this._layers[i];\r\n\t\t\tthis._addItem(obj);\r\n\t\t\toverlaysPresent = overlaysPresent || obj.overlay;\r\n\t\t\tbaseLayersPresent = baseLayersPresent || !obj.overlay;\r\n\t\t\tbaseLayersCount += !obj.overlay ? 1 : 0;\r\n\t\t}\r\n\r\n\t\t// Hide base layers section if there's only one layer.\r\n\t\tif (this.options.hideSingleBase) {\r\n\t\t\tbaseLayersPresent = baseLayersPresent && baseLayersCount > 1;\r\n\t\t\tthis._baseLayersList.style.display = baseLayersPresent ? '' : 'none';\r\n\t\t}\r\n\r\n\t\tthis._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_onLayerChange: function (e) {\r\n\t\tif (!this._handlingClick) {\r\n\t\t\tthis._update();\r\n\t\t}\r\n\r\n\t\tvar obj = this._getLayer(L.stamp(e.target));\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Layer events\r\n\t\t// @event baselayerchange: LayersControlEvent\r\n\t\t// Fired when the base layer is changed through the [layer control](#control-layers).\r\n\t\t// @event overlayadd: LayersControlEvent\r\n\t\t// Fired when an overlay is selected through the [layer control](#control-layers).\r\n\t\t// @event overlayremove: LayersControlEvent\r\n\t\t// Fired when an overlay is deselected through the [layer control](#control-layers).\r\n\t\t// @namespace Control.Layers\r\n\t\tvar type = obj.overlay ?\r\n\t\t\t(e.type === 'add' ? 'overlayadd' : 'overlayremove') :\r\n\t\t\t(e.type === 'add' ? 'baselayerchange' : null);\r\n\r\n\t\tif (type) {\r\n\t\t\tthis._map.fire(type, obj);\r\n\t\t}\r\n\t},\r\n\r\n\t// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)\r\n\t_createRadioElement: function (name, checked) {\r\n\r\n\t\tvar radioHtml = '<input type=\"radio\" class=\"leaflet-control-layers-selector\" name=\"' +\r\n\t\t\t\tname + '\"' + (checked ? ' checked=\"checked\"' : '') + '/>';\r\n\r\n\t\tvar radioFragment = document.createElement('div');\r\n\t\tradioFragment.innerHTML = radioHtml;\r\n\r\n\t\treturn radioFragment.firstChild;\r\n\t},\r\n\r\n\t_addItem: function (obj) {\r\n\t\tvar label = document.createElement('label'),\r\n\t\t    checked = this._map.hasLayer(obj.layer),\r\n\t\t    input;\r\n\r\n\t\tif (obj.overlay) {\r\n\t\t\tinput = document.createElement('input');\r\n\t\t\tinput.type = 'checkbox';\r\n\t\t\tinput.className = 'leaflet-control-layers-selector';\r\n\t\t\tinput.defaultChecked = checked;\r\n\t\t} else {\r\n\t\t\tinput = this._createRadioElement('leaflet-base-layers', checked);\r\n\t\t}\r\n\r\n\t\tinput.layerId = L.stamp(obj.layer);\r\n\r\n\t\tL.DomEvent.on(input, 'click', this._onInputClick, this);\r\n\r\n\t\tvar name = document.createElement('span');\r\n\t\tname.innerHTML = ' ' + obj.name;\r\n\r\n\t\t// Helps from preventing layer control flicker when checkboxes are disabled\r\n\t\t// https://github.com/Leaflet/Leaflet/issues/2771\r\n\t\tvar holder = document.createElement('div');\r\n\r\n\t\tlabel.appendChild(holder);\r\n\t\tholder.appendChild(input);\r\n\t\tholder.appendChild(name);\r\n\r\n\t\tvar container = obj.overlay ? this._overlaysList : this._baseLayersList;\r\n\t\tcontainer.appendChild(label);\r\n\r\n\t\tthis._checkDisabledLayers();\r\n\t\treturn label;\r\n\t},\r\n\r\n\t_onInputClick: function () {\r\n\t\tvar inputs = this._form.getElementsByTagName('input'),\r\n\t\t    input, layer, hasLayer;\r\n\t\tvar addedLayers = [],\r\n\t\t    removedLayers = [];\r\n\r\n\t\tthis._handlingClick = true;\r\n\r\n\t\tfor (var i = inputs.length - 1; i >= 0; i--) {\r\n\t\t\tinput = inputs[i];\r\n\t\t\tlayer = this._getLayer(input.layerId).layer;\r\n\t\t\thasLayer = this._map.hasLayer(layer);\r\n\r\n\t\t\tif (input.checked && !hasLayer) {\r\n\t\t\t\taddedLayers.push(layer);\r\n\r\n\t\t\t} else if (!input.checked && hasLayer) {\r\n\t\t\t\tremovedLayers.push(layer);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// Bugfix issue 2318: Should remove all old layers before readding new ones\r\n\t\tfor (i = 0; i < removedLayers.length; i++) {\r\n\t\t\tthis._map.removeLayer(removedLayers[i]);\r\n\t\t}\r\n\t\tfor (i = 0; i < addedLayers.length; i++) {\r\n\t\t\tthis._map.addLayer(addedLayers[i]);\r\n\t\t}\r\n\r\n\t\tthis._handlingClick = false;\r\n\r\n\t\tthis._refocusOnMap();\r\n\t},\r\n\r\n\t_checkDisabledLayers: function () {\r\n\t\tvar inputs = this._form.getElementsByTagName('input'),\r\n\t\t    input,\r\n\t\t    layer,\r\n\t\t    zoom = this._map.getZoom();\r\n\r\n\t\tfor (var i = inputs.length - 1; i >= 0; i--) {\r\n\t\t\tinput = inputs[i];\r\n\t\t\tlayer = this._getLayer(input.layerId).layer;\r\n\t\t\tinput.disabled = (layer.options.minZoom !== undefined && zoom < layer.options.minZoom) ||\r\n\t\t\t                 (layer.options.maxZoom !== undefined && zoom > layer.options.maxZoom);\r\n\r\n\t\t}\r\n\t},\r\n\r\n\t_expand: function () {\r\n\t\t// Backward compatibility, remove me in 1.1.\r\n\t\treturn this.expand();\r\n\t},\r\n\r\n\t_collapse: function () {\r\n\t\t// Backward compatibility, remove me in 1.1.\r\n\t\treturn this.collapse();\r\n\t}\r\n\r\n});\r\n\r\n\r\n// @factory L.control.layers(baselayers?: Object, overlays?: Object, options?: Control.Layers options)\r\n// Creates an attribution control with the given layers. Base layers will be switched with radio buttons, while overlays will be switched with checkboxes. Note that all base layers should be passed in the base layers object, but only one should be added to the map during map instantiation.\r\nL.control.layers = function (baseLayers, overlays, options) {\r\n\treturn new L.Control.Layers(baseLayers, overlays, options);\r\n};\r\n\n\n\n}(window, document));\n//# sourceMappingURL=leaflet-src.map","/**\r\n * @class  L.Matrix\r\n *\r\n * @param {Number} a\r\n * @param {Number} b\r\n * @param {Number} c\r\n * @param {Number} d\r\n * @param {Number} e\r\n * @param {Number} f\r\n */\r\nL.Matrix = function(a, b, c, d, e, f) {\r\n\r\n  /**\r\n   * @type {Array.<Number>}\r\n   */\r\n  this._matrix = [a, b, c, d, e, f];\r\n};\r\n\r\n\r\nL.Matrix.prototype = {\r\n\r\n\r\n  /**\r\n   * @param  {L.Point} point\r\n   * @return {L.Point}\r\n   */\r\n  transform: function(point) {\r\n    return this._transform(point.clone());\r\n  },\r\n\r\n\r\n  /**\r\n   * Destructive\r\n   *\r\n   * [ x ] = [ a  b  tx ] [ x ] = [ a * x + b * y + tx ]\r\n   * [ y ] = [ c  d  ty ] [ y ] = [ c * x + d * y + ty ]\r\n   *\r\n   * @param  {L.Point} point\r\n   * @return {L.Point}\r\n   */\r\n  _transform: function(point) {\r\n    var matrix = this._matrix;\r\n    var x = point.x, y = point.y;\r\n    point.x = matrix[0] * x + matrix[1] * y + matrix[4];\r\n    point.y = matrix[2] * x + matrix[3] * y + matrix[5];\r\n    return point;\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {L.Point} point\r\n   * @return {L.Point}\r\n   */\r\n  untransform: function (point) {\r\n    var matrix = this._matrix;\r\n    return new L.Point(\r\n      (point.x / matrix[0] - matrix[4]) / matrix[0],\r\n      (point.y / matrix[2] - matrix[5]) / matrix[2]\r\n    );\r\n  },\r\n\r\n\r\n  /**\r\n   * @return {L.Matrix}\r\n   */\r\n  clone: function() {\r\n    var matrix = this._matrix;\r\n    return new L.Matrix(\r\n      matrix[0], matrix[1], matrix[2],\r\n      matrix[3], matrix[4], matrix[5]\r\n    );\r\n  },\r\n\r\n\r\n  /**\r\n   * @param {L.Point=|Number=} translate\r\n   * @return {L.Matrix|L.Point}\r\n   */\r\n  translate: function(translate) {\r\n    if (translate === undefined) {\r\n      return new L.Point(this._matrix[4], this._matrix[5]);\r\n    }\r\n\r\n    var translateX, translateY;\r\n    if (typeof translate === 'number') {\r\n      translateX = translateY = translate;\r\n    } else {\r\n      translateX = translate.x;\r\n      translateY = translate.y;\r\n    }\r\n\r\n    return this._add(1, 0, 0, 1, translateX, translateY);\r\n  },\r\n\r\n\r\n  /**\r\n   * @param {L.Point=|Number=} scale\r\n   * @return {L.Matrix|L.Point}\r\n   */\r\n  scale: function(scale, origin) {\r\n    if (scale === undefined) {\r\n      return new L.Point(this._matrix[0], this._matrix[3]);\r\n    }\r\n\r\n    var scaleX, scaleY;\r\n    origin = origin || L.point(0, 0);\r\n    if (typeof scale === 'number') {\r\n      scaleX = scaleY = scale;\r\n    } else {\r\n      scaleX = scale.x;\r\n      scaleY = scale.y;\r\n    }\r\n\r\n    return this\r\n      ._add(scaleX, 0, 0, scaleY, origin.x, origin.y)\r\n      ._add(1, 0, 0, 1, -origin.x, -origin.y);\r\n  },\r\n\r\n\r\n  /**\r\n   * m00  m01  x - m00 * x - m01 * y\r\n   * m10  m11  y - m10 * x - m11 * y\r\n   * @param {Number}   angle\r\n   * @param {L.Point=} origin\r\n   * @return {L.Matrix}\r\n   */\r\n  rotate: function(angle, origin) {\r\n    var cos = Math.cos(angle);\r\n    var sin = Math.sin(angle);\r\n\r\n    origin = origin || new L.Point(0, 0);\r\n\r\n    return this\r\n      ._add(cos, sin, -sin, cos, origin.x, origin.y)\r\n      ._add(1, 0, 0, 1, -origin.x, -origin.y);\r\n  },\r\n\r\n\r\n  /**\r\n   * Invert rotation\r\n   * @return {L.Matrix}\r\n   */\r\n  flip: function() {\r\n    this._matrix[1] *= -1;\r\n    this._matrix[2] *= -1;\r\n    return this;\r\n  },\r\n\r\n\r\n  /**\r\n   * @param {Number|L.Matrix} a\r\n   * @param {Number} b\r\n   * @param {Number} c\r\n   * @param {Number} d\r\n   * @param {Number} e\r\n   * @param {Number} f\r\n   */\r\n  _add: function(a, b, c, d, e, f) {\r\n    var result = [[], [], []];\r\n    var src = this._matrix;\r\n    var m = [\r\n      [src[0], src[2], src[4]],\r\n      [src[1], src[3], src[5]],\r\n      [     0,      0,     1]\r\n    ];\r\n    var other = [\r\n      [a, c, e],\r\n      [b, d, f],\r\n      [0, 0, 1]\r\n    ], val;\r\n\r\n\r\n    if (a && a instanceof L.Matrix) {\r\n      src = a._matrix;\r\n      other = [\r\n        [src[0], src[2], src[4]],\r\n        [src[1], src[3], src[5]],\r\n        [     0,      0,     1]];\r\n    }\r\n\r\n    for (var i = 0; i < 3; i++) {\r\n      for (var j = 0; j < 3; j++) {\r\n        val = 0;\r\n        for (var k = 0; k < 3; k++) {\r\n          val += m[i][k] * other[k][j];\r\n        }\r\n        result[i][j] = val;\r\n      }\r\n    }\r\n\r\n    this._matrix = [\r\n      result[0][0], result[1][0], result[0][1],\r\n      result[1][1], result[0][2], result[1][2]\r\n    ];\r\n    return this;\r\n  }\r\n\r\n\r\n};\r\n\r\n\r\nL.matrix = function(a, b, c, d, e, f) {\r\n  return new L.Matrix(a, b, c, d, e, f);\r\n};\r\n","/**\r\n * @namespace\r\n * @type {Object}\r\n */\r\nL.PathTransform = {};\r\n\r\n\r\n/**\r\n * Marker handler\r\n * @extends {L.CircleMarker}\r\n */\r\nL.PathTransform.Handle = L.CircleMarker.extend({\r\n  options: {\r\n    className: 'leaflet-path-transform-handler'\r\n  },\r\n\r\n  onAdd: function (map) {\r\n    L.CircleMarker.prototype.onAdd.call(this, map);\r\n    if (this._path && this.options.setCursor) { // SVG/VML\r\n      this._path.style.cursor = L.PathTransform.Handle.CursorsByType[\r\n        this.options.index\r\n      ];\r\n    }\r\n  }\r\n});\r\n\r\n\r\n/**\r\n * @const\r\n * @type {Array}\r\n */\r\nL.PathTransform.Handle.CursorsByType = [\r\n  'nesw-resize', 'nwse-resize', 'nesw-resize', 'nwse-resize'\r\n];\r\n\r\n\r\n/**\r\n * @extends {L.Handler.PathTransform.Handle}\r\n */\r\nL.PathTransform.RotateHandle = L.PathTransform.Handle.extend({\r\n  options: {\r\n    className: 'leaflet-path-transform-handler transform-handler--rotate'\r\n  },\r\n\r\n  onAdd: function (map) {\r\n    L.CircleMarker.prototype.onAdd.call(this, map);\r\n    if (this._path && this.options.setCursor) { // SVG/VML\r\n      this._path.style.cursor = 'all-scroll';\r\n    }\r\n  }\r\n});\r\n\r\nL.Handler.PathTransform = L.Handler.extend({\r\n\r\n  options: {\r\n    rotation: true,\r\n    scaling:  true,\r\n    uniformScaling: true,\r\n    maxZoom:  22,\r\n\r\n    // edge handlers\r\n    handlerOptions: {\r\n      radius:      5,\r\n      fillColor:   '#ffffff',\r\n      color:       '#202020',\r\n      fillOpacity: 1,\r\n      weight:      2,\r\n      opacity:     0.7,\r\n      setCursor:   true\r\n    },\r\n\r\n    // rectangle\r\n    boundsOptions: {\r\n      weight:    1,\r\n      opacity:   1,\r\n      dashArray: [3, 3],\r\n      fill:      false\r\n    },\r\n\r\n    // rotation handler\r\n    rotateHandleOptions: {\r\n      weight:    1,\r\n      opacity:   1,\r\n      setCursor: true\r\n    },\r\n    // rotation handle length\r\n    handleLength: 20,\r\n\r\n    // maybe I'll add skewing in the future\r\n    edgesCount:   4,\r\n\r\n    handleClass:       L.PathTransform.Handle,\r\n    rotateHandleClass: L.PathTransform.RotateHandle\r\n  },\r\n\r\n\r\n  /**\r\n   * @class L.Handler.PathTransform\r\n   * @constructor\r\n   * @param  {L.Path} path\r\n   */\r\n  initialize: function(path) {\r\n    // references\r\n    this._path = path;\r\n    this._map  = null;\r\n\r\n    // handlers\r\n    this._activeMarker   = null;\r\n    this._originMarker   = null;\r\n    this._rotationMarker = null;\r\n\r\n    // origins & temporary state\r\n    this._rotationOrigin   = null;\r\n    this._scaleOrigin      = null;\r\n    this._angle            = 0;\r\n    this._scale            = L.point(1, 1);\r\n    this._initialDist      = 0;\r\n    this._initialDistX     = 0;\r\n    this._initialDistY     = 0;\r\n    this._rotationStart    = null;\r\n    this._rotationOriginPt = null;\r\n\r\n    // preview and transform matrix\r\n    this._matrix          = new L.Matrix(1, 0, 0, 1, 0, 0);\r\n    this._projectedMatrix = new L.Matrix(1, 0, 0, 1, 0, 0);\r\n\r\n    // ui elements\r\n    this._handlersGroup  = null;\r\n    this._rect           = null;\r\n    this._handlers       = [];\r\n    this._handleLine     = null;\r\n  },\r\n\r\n\r\n  /**\r\n   * If the polygon is not rendered, you can transform it yourself\r\n   * in the coordinates, and do it properly.\r\n   * @param {Object=} options\r\n   */\r\n  enable: function(options) {\r\n    if (this._path._map) {\r\n      this._map = this._path._map;\r\n      if (options) {\r\n        this.setOptions(options);\r\n      }\r\n      L.Handler.prototype.enable.call(this);\r\n    }\r\n  },\r\n\r\n\r\n  /**\r\n   * Init interactions and handlers\r\n   */\r\n  addHooks: function() {\r\n    this._createHandlers();\r\n    this._path\r\n      .on('dragstart', this._onDragStart, this)\r\n      .on('dragend',   this._onDragEnd,   this);\r\n  },\r\n\r\n\r\n  /**\r\n   * Remove handlers\r\n   */\r\n  removeHooks: function() {\r\n    this._hideHandlers();\r\n    this._path\r\n      .off('dragstart', this._onDragStart, this)\r\n      .off('dragend',   this._onDragEnd,   this);\r\n    this._handlersGroup = null;\r\n    this._rect = null;\r\n    this._handlers = [];\r\n  },\r\n\r\n\r\n  /**\r\n   * Change editing options\r\n   * @param {Object} options\r\n   */\r\n  setOptions: function(options) {\r\n    var enabled = this._enabled;\r\n    if (enabled) {\r\n      this.disable();\r\n    }\r\n\r\n    this.options = L.Util.merge({},\r\n      L.Handler.PathTransform.prototype.options,\r\n      options);\r\n\r\n    if (enabled) {\r\n      this.enable();\r\n    }\r\n\r\n    return this;\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {Number}   angle\r\n   * @param  {L.LatLng} origin\r\n   * @return {L.Handler.PathTransform}\r\n   */\r\n  rotate: function(angle, origin) {\r\n    return this.transform(angle, null, origin);\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {L.Point|Number} scale\r\n   * @param  {L.LatLng}       origin\r\n   * @return {L.Handler.PathTransform}\r\n   */\r\n  scale: function(scale, origin) {\r\n    if (typeof scale === 'number') {\r\n      scale = L.point(scale, scale);\r\n    }\r\n    return this.transform(0, scale, null, origin);\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {Number}    angle\r\n   * @param  {L.Point}   scale\r\n   * @param  {L.LatLng=} rotationOrigin\r\n   * @param  {L.LatLng=} scaleOrigin\r\n   * @return {L.Handler.PathTransform}\r\n   */\r\n  transform: function(angle, scale, rotationOrigin, scaleOrigin) {\r\n    var center     = this._path.getCenter();\r\n    rotationOrigin = rotationOrigin || center;\r\n    scaleOrigin    = scaleOrigin    || center;\r\n    this._map = this._path._map;\r\n    this._transformPoints(this._path, angle, scale, rotationOrigin, scaleOrigin);\r\n    return this;\r\n  },\r\n\r\n\r\n  /**\r\n   * Update the polygon and handlers preview, no reprojection\r\n   */\r\n  _update: function() {\r\n    var matrix = this._matrix;\r\n\r\n    // update handlers\r\n    for (var i = 0, len = this._handlers.length; i < len; i++) {\r\n      var handler = this._handlers[i];\r\n      if (handler !== this._originMarker) {\r\n        handler._point = matrix.transform(handler._initialPoint);\r\n        handler._updatePath();\r\n      }\r\n    }\r\n\r\n    matrix = matrix.clone().flip();\r\n\r\n    this._applyTransform(matrix);\r\n    this._path.fire('transform', { layer: this._path });\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {L.Matrix} matrix\r\n   */\r\n  _applyTransform: function(matrix) {\r\n    this._path._transform(matrix._matrix);\r\n    this._rect._transform(matrix._matrix);\r\n\r\n    if (this.options.rotation) {\r\n      this._handleLine._transform(matrix._matrix);\r\n    }\r\n  },\r\n\r\n\r\n  /**\r\n   * Apply final transformation\r\n   */\r\n  _apply: function() {\r\n    //console.group('apply transform');\r\n    var map = this._map;\r\n    var matrix = this._matrix.clone();\r\n    var angle = this._angle;\r\n    var scale = this._scale.clone();\r\n\r\n    this._transformGeometries();\r\n\r\n    // update handlers\r\n    for (var i = 0, len = this._handlers.length; i < len; i++) {\r\n      var handler = this._handlers[i];\r\n      handler._latlng = map.layerPointToLatLng(handler._point);\r\n      delete handler._initialPoint;\r\n      handler.redraw();\r\n    }\r\n\r\n    this._matrix = L.matrix(1, 0, 0, 1, 0, 0);\r\n    this._scale  = L.point(1, 1);\r\n    this._angle  = 0;\r\n\r\n    this._updateHandlers();\r\n\r\n    map.dragging.enable();\r\n    this._path.fire('transformed', {\r\n      matrix: matrix,\r\n      scale: scale,\r\n      rotation: angle,\r\n      // angle: angle * (180 / Math.PI),\r\n      layer: this._path\r\n    });\r\n    // console.groupEnd('apply transform');\r\n  },\r\n\r\n\r\n  /**\r\n   * Recalculate rotation handlers position\r\n   */\r\n  _updateHandlers: function() {\r\n    var handlersGroup = this._handlersGroup;\r\n\r\n    this._rectShape = this._rect.toGeoJSON();\r\n\r\n    if (this._handleLine) {\r\n      this._handlersGroup.removeLayer(this._handleLine);\r\n    }\r\n\r\n    if (this._rotationMarker) {\r\n      this._handlersGroup.removeLayer(this._rotationMarker);        \r\n    }      \r\n\r\n    this._handleLine = this._rotationMarker = null;\r\n\r\n    for (var i = this._handlers.length - 1; i >= 0; i--) {\r\n      handlersGroup.removeLayer(this._handlers[i]);\r\n    }\r\n\r\n    this._createHandlers();\r\n  },\r\n\r\n\r\n  /**\r\n   * Transform geometries separately\r\n   */\r\n  _transformGeometries: function() {\r\n    this._path._transform(null);\r\n    this._rect._transform(null);\r\n\r\n    this._transformPoints(this._path);\r\n    this._transformPoints(this._rect);\r\n\r\n    if (this.options.rotation) {\r\n      this._handleLine._transform(null);\r\n      this._transformPoints(this._handleLine, this._angle, null, this._origin);\r\n    }\r\n  },\r\n\r\n\r\n  /**\r\n   * @param {Number} angle\r\n   * @param {Number} scale\r\n   * @param {L.LatLng=} rotationOrigin\r\n   * @param {L.LatLng=} scaleOrigin\r\n   */\r\n  _getProjectedMatrix: function(angle, scale, rotationOrigin, scaleOrigin) {\r\n    var map    = this._map;\r\n    var zoom   = map.getMaxZoom() || this.options.maxZoom;\r\n    var matrix = L.matrix(1, 0, 0, 1, 0, 0);\r\n    var origin;\r\n\r\n    angle = angle || this._angle || 0;\r\n    scale = scale || this._scale || L.point(1, 1);\r\n\r\n    if (!(scale.x === 1 && scale.y === 1)) {\r\n      scaleOrigin = scaleOrigin || this._scaleOrigin;\r\n      origin = map.project(scaleOrigin, zoom);\r\n      matrix = matrix\r\n        ._add(L.matrix(1, 0, 0, 1, origin.x, origin.y))\r\n        ._add(L.matrix(scale.x, 0, 0, scale.y, 0, 0))\r\n        ._add(L.matrix(1, 0, 0, 1, -origin.x, -origin.y));\r\n    }\r\n\r\n    if (angle) {\r\n      rotationOrigin = rotationOrigin || this._rotationOrigin;\r\n      origin = map.project(rotationOrigin, zoom);\r\n      matrix = matrix.rotate(angle, origin).flip();\r\n    }\r\n\r\n    return matrix;\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {L.LatLng} latlng\r\n   * @param  {L.Matrix} matrix\r\n   * @param  {L.Map}    map\r\n   * @param  {Number}   zoom\r\n   * @return {L.LatLng}\r\n   */\r\n  _transformPoint: function(latlng, matrix, map, zoom) {\r\n    return map.unproject(matrix.transform(\r\n      map.project(latlng, zoom)), zoom);\r\n  },\r\n\r\n\r\n  /**\r\n   * Applies transformation, does it in one sweep for performance,\r\n   * so don't be surprised about the code repetition.\r\n   *\r\n   * @param {L.Path}    path\r\n   * @param {Number=}   angle\r\n   * @param {L.Point=}  scale\r\n   * @param {L.LatLng=} rotationOrigin\r\n   * @param {L.LatLng=} scaleOrigin\r\n   */\r\n  _transformPoints: function(path, angle, scale, rotationOrigin, scaleOrigin) {\r\n    var map = path._map;\r\n    var zoom = map.getMaxZoom() || this.options.maxZoom;\r\n    var i, len;\r\n\r\n    var projectedMatrix = this._projectedMatrix =\r\n      this._getProjectedMatrix(angle, scale, rotationOrigin, scaleOrigin);\r\n    // console.time('transform');\r\n\r\n    // all shifts are in-place\r\n    if (path._point) { // L.Circle\r\n      path._latlng = this._transformPoint(\r\n        path._latlng, projectedMatrix, map, zoom);\r\n    } else if (path._rings || path._parts) { // everything else\r\n      var rings = path._rings;\r\n      var latlngs = path._latlngs;\r\n      path._bounds = new L.LatLngBounds();\r\n\r\n      if (!L.Util.isArray(latlngs[0])) { // polyline\r\n        latlngs = [latlngs];\r\n      }\r\n      for (i = 0, len = rings.length; i < len; i++) {\r\n        for (var j = 0, jj = rings[i].length; j < jj; j++) {\r\n          latlngs[i][j] = this._transformPoint(\r\n            latlngs[i][j], projectedMatrix, map, zoom);\r\n          path._bounds.extend(latlngs[i][j]);\r\n        }\r\n      }\r\n    }\r\n\r\n    path._reset();\r\n    //console.timeEnd('transform');\r\n  },\r\n\r\n\r\n  /**\r\n   * Creates markers and handles\r\n   */\r\n  _createHandlers: function() {\r\n    var map = this._map;\r\n    this._handlersGroup = this._handlersGroup ||\r\n                          new L.LayerGroup().addTo(map);\r\n    this._rect = this._rect ||\r\n                 this._getBoundingPolygon().addTo(this._handlersGroup);\r\n\r\n    if (this.options.scaling) {\r\n      this._handlers = [];\r\n      for (var i = 0; i < this.options.edgesCount; i++) {\r\n        // TODO: add stretching\r\n        this._handlers.push(\r\n          this._createHandler(this._rect._latlngs[0][i], i * 2, i)\r\n          .addTo(this._handlersGroup));\r\n      }\r\n    }\r\n\r\n    // add bounds\r\n    if (this.options.rotation) {\r\n      //add rotation handler\r\n      this._createRotationHandlers();\r\n    }\r\n  },\r\n\r\n\r\n  /**\r\n   * Rotation marker and small connectin handle\r\n   */\r\n  _createRotationHandlers: function() {\r\n    var map     = this._map;\r\n    var latlngs = this._rect._latlngs[0];\r\n\r\n    var bottom   = new L.LatLng(\r\n      (latlngs[0].lat + latlngs[3].lat) / 2,\r\n      (latlngs[0].lng + latlngs[3].lng) / 2);\r\n    // hehe, top is a reserved word\r\n    var topPoint = new L.LatLng(\r\n      (latlngs[1].lat + latlngs[2].lat) / 2,\r\n      (latlngs[1].lng + latlngs[2].lng) / 2);\r\n\r\n    var handlerPosition = map.layerPointToLatLng(\r\n      L.LineUtil.pointOnLine(\r\n        map.latLngToLayerPoint(bottom),\r\n        map.latLngToLayerPoint(topPoint),\r\n        this.options.handleLength)\r\n    );\r\n\r\n    this._handleLine = new L.Polyline([topPoint, handlerPosition],\r\n      this.options.rotateHandleOptions).addTo(this._handlersGroup);\r\n    var RotateHandleClass = this.options.rotateHandleClass;\r\n    this._rotationMarker = new RotateHandleClass(handlerPosition,\r\n      this.options.handlerOptions)\r\n      .addTo(this._handlersGroup)\r\n      .on('mousedown', this._onRotateStart, this);\r\n\r\n    this._rotationOrigin = new L.LatLng(\r\n      (topPoint.lat + bottom.lat) / 2,\r\n      (topPoint.lng + bottom.lng) / 2\r\n    );\r\n\r\n    this._handlers.push(this._rotationMarker);\r\n  },\r\n\r\n\r\n  /**\r\n   * @return {L.LatLng}\r\n   */\r\n  _getRotationOrigin: function() {\r\n    var latlngs = this._rect._latlngs[0];\r\n    var lb = latlngs[0];\r\n    var rt = latlngs[2];\r\n\r\n    return new L.LatLng(\r\n      (lb.lat + rt.lat) / 2,\r\n      (lb.lng + rt.lng) / 2\r\n    );\r\n  },\r\n\r\n\r\n  /**\r\n   * Secure the rotation origin\r\n   * @param  {Event} evt\r\n   */\r\n  _onRotateStart: function(evt) {\r\n    var map = this._map;\r\n\r\n    map.dragging.disable();\r\n\r\n    this._originMarker     = null;\r\n    this._rotationOriginPt = map.latLngToLayerPoint(this._getRotationOrigin());\r\n    this._rotationStart    = evt.layerPoint;\r\n    this._initialMatrix    = this._matrix.clone();\r\n\r\n    this._angle = 0;\r\n    this._path._map\r\n      .on('mousemove', this._onRotate,     this)\r\n      .on('mouseup',   this._onRotateEnd, this);\r\n\r\n    this._cachePoints();\r\n    this._path\r\n      .fire('transformstart',   { layer: this._path })\r\n      .fire('rotatestart', { layer: this._path, rotation: 0 });\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {Event} evt\r\n   */\r\n  _onRotate: function(evt) {\r\n    var pos = evt.layerPoint;\r\n    var previous = this._rotationStart;\r\n    var origin   = this._rotationOriginPt;\r\n\r\n    // rotation step angle\r\n    this._angle = Math.atan2(pos.y - origin.y, pos.x - origin.x) -\r\n                  Math.atan2(previous.y - origin.y, previous.x - origin.x);\r\n\r\n    this._matrix = this._initialMatrix\r\n      .clone()\r\n      .rotate(this._angle, origin)\r\n      .flip();\r\n\r\n    this._update();\r\n    this._path.fire('rotate', { layer: this._path, rotation: this._angle });\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {Event} evt\r\n   */\r\n  _onRotateEnd: function(evt) {\r\n    this._path._map\r\n      .off('mousemove', this._onRotate, this)\r\n      .off('mouseup',   this._onRotateEnd, this);\r\n\r\n    this._apply();\r\n    this._path.fire('rotateend', { layer: this._path, rotation: this._angle });\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {Event} evt\r\n   */\r\n  _onScaleStart: function(evt) {\r\n    var marker = evt.target;\r\n    var map = this._map;\r\n\r\n    map.dragging.disable();\r\n\r\n    this._activeMarker = marker;\r\n\r\n    this._originMarker = this._handlers[(marker.options.index + 2) % 4];\r\n    this._scaleOrigin  = this._originMarker.getLatLng();\r\n\r\n    this._initialMatrix = this._matrix.clone();\r\n    this._cachePoints();\r\n\r\n    this._map\r\n      .on('mousemove', this._onScale,    this)\r\n      .on('mouseup',   this._onScaleEnd, this);\r\n    this._initialDist  = this._originMarker._point.distanceTo(this._activeMarker._point);\r\n    this._initialDistX = this._originMarker._point.x - this._activeMarker._point.x;\r\n    this._initialDistY = this._originMarker._point.y - this._activeMarker._point.y;\r\n\r\n    this._path\r\n      .fire('transformstart', { layer: this._path })\r\n      .fire('scalestart', { layer: this._path, scale: L.point(1, 1) });\r\n\r\n    this._map.removeLayer(this._handleLine);\r\n    this._map.removeLayer(this._rotationMarker);\r\n\r\n    //this._handleLine = this._rotationMarker = null;\r\n  },\r\n\r\n\r\n  /**\r\n   * @param  {Event} evt\r\n   */\r\n  _onScale: function(evt) {\r\n    var originPoint = this._originMarker._point;\r\n    var ratioX, ratioY;\r\n    if (this.options.uniformScaling) {\r\n      ratioX = originPoint.distanceTo(evt.layerPoint) / this._initialDist;\r\n      ratioY = ratioX;\r\n    } else {\r\n      ratioX = (originPoint.x - evt.layerPoint.x) / this._initialDistX;\r\n      ratioY = (originPoint.y - evt.layerPoint.y) / this._initialDistY;\r\n    }\r\n\r\n    this._scale = new L.Point(ratioX, ratioY);\r\n\r\n    // update matrix\r\n    this._matrix = this._initialMatrix\r\n      .clone()\r\n      .scale(this._scale, originPoint);\r\n\r\n    this._update();\r\n    this._path.fire('scale', {\r\n      layer: this._path, scale: this._scale.clone() });\r\n  },\r\n\r\n\r\n  /**\r\n   * Scaling complete\r\n   * @param  {Event} evt\r\n   */\r\n  _onScaleEnd: function(evt) {\r\n    this._map\r\n      .off('mousemove', this._onScale,    this)\r\n      .off('mouseup',   this._onScaleEnd, this);\r\n\r\n    this._map.addLayer(this._handleLine);\r\n    this._map.addLayer(this._rotationMarker);\r\n\r\n    this._apply();\r\n    this._path.fire('scaleend', {\r\n      layer: this._path, scale: this._scale.clone() });\r\n  },\r\n\r\n\r\n  /**\r\n   * Cache current handlers positions\r\n   */\r\n  _cachePoints: function() {\r\n    this._handlersGroup.eachLayer(function(layer) {\r\n      layer.bringToFront();\r\n    });\r\n    for (var i = 0, len = this._handlers.length; i < len; i++) {\r\n      var handler = this._handlers[i];\r\n      handler._initialPoint = handler._point.clone();\r\n    }\r\n  },\r\n\r\n\r\n  /**\r\n   * Bounding polygon\r\n   * @return {L.Polygon}\r\n   */\r\n  _getBoundingPolygon: function() {\r\n    if (this._rectShape) {\r\n      return L.GeoJSON.geometryToLayer(\r\n        this._rectShape, this.options.boundsOptions);\r\n    } else {\r\n      return new L.Rectangle(\r\n        this._path.getBounds(), this.options.boundsOptions);\r\n    }\r\n  },\r\n\r\n\r\n  /**\r\n   * Create corner marker\r\n   * @param  {L.LatLng} latlng\r\n   * @param  {Number}   type one of L.Handler.PathTransform.HandlerTypes\r\n   * @param  {Number}   index\r\n   * @return {L.Handler.PathTransform.Handle}\r\n   */\r\n  _createHandler: function(latlng, type, index) {\r\n    var HandleClass = this.options.handleClass;\r\n    var marker = new HandleClass(latlng,\r\n      L.Util.extend({}, this.options.handlerOptions, {\r\n        className: 'leaflet-drag-transform-marker drag-marker--' +\r\n                   index + ' drag-marker--' + type,\r\n        index:     index,\r\n        type:      type\r\n      })\r\n    );\r\n\r\n    marker.on('mousedown', this._onScaleStart, this);\r\n    return marker;\r\n  },\r\n\r\n\r\n  /**\r\n   * Hide(not remove) the handlers layer\r\n   */\r\n  _hideHandlers: function() {\r\n    this._map.removeLayer(this._handlersGroup);\r\n  },\r\n\r\n\r\n  /**\r\n   * Hide handlers and rectangle\r\n   */\r\n  _onDragStart: function() {\r\n    this._hideHandlers();\r\n  },\r\n\r\n\r\n  /**\r\n   * Drag rectangle, re-create handlers\r\n   */\r\n  _onDragEnd: function(evt) {\r\n    var rect = this._rect;\r\n    var matrix = (evt.layer ? evt.layer : this._path).dragging._matrix.slice();\r\n\r\n    if (!rect.dragging) {\r\n      rect.dragging = new L.Handler.PathDrag(rect);\r\n    }\r\n    rect.dragging.enable();\r\n    this._map.addLayer(rect);\r\n    rect.dragging._transformPoints(matrix);\r\n    rect._updatePath();\r\n    rect._project();\r\n    rect.dragging.disable();\r\n\r\n    this._map.addLayer(this._handlersGroup);\r\n    this._updateHandlers();\r\n\r\n    this._path.fire('transformed', {\r\n      scale: L.point(1, 1),\r\n      rotation: 0,\r\n      matrix: L.matrix.apply(undefined, matrix),\r\n      translate: L.point(matrix[4], matrix[5]),\r\n      layer: this._path\r\n    });\r\n  }\r\n});\r\n\r\n\r\nL.Path.addInitHook(function() {\r\n  if (this.options.transform) {\r\n    this.transform = new L.Handler.PathTransform(this, this.options.transform);\r\n  }\r\n});\r\n","/**\r\n * Point on the line segment or its extention\r\n *\r\n * @param  {L.Point} start\r\n * @param  {L.Point} final\r\n * @param  {Number}  distPx\r\n * @return {L.Point}\r\n */\r\nL.LineUtil.pointOnLine = function(start, final, distPx) {\r\n  var ratio = 1 + distPx / start.distanceTo(final);\r\n  return new L.Point(\r\n    start.x + (final.x - start.x) * ratio,\r\n    start.y + (final.y - start.y) * ratio\r\n  );\r\n};\r\n\r\n\r\n/**\r\n * Deep merge objects.\r\n */\r\nL.Util.merge = function() {\r\n  var i = 1;\r\n  var key, val;\r\n  var obj = arguments[i];\r\n\r\n  function isObject(object) {\r\n    return Object.prototype.toString.call(object) === '[object Object]';\r\n  }\r\n\r\n  // make sure we don't modify source element and it's properties\r\n  // objects are passed by reference\r\n  var target = arguments[0];\r\n\r\n  while (obj) {\r\n    obj = arguments[i++];\r\n    for (key in obj) {\r\n      if (!obj.hasOwnProperty(key)) {\r\n        continue;\r\n      }\r\n\r\n      val = obj[key];\r\n\r\n      if (isObject(val) && isObject(target[key])){\r\n        target[key] = L.Util.merge(target[key], val);\r\n      } else {\r\n        target[key] = val;\r\n      }\r\n    }\r\n  }\r\n  return target;\r\n};\r\n"]} diff --git a/src/Path.Transform.js b/src/Path.Transform.js index e4cdc55..d276483 100644 --- a/src/Path.Transform.js +++ b/src/Path.Transform.js @@ -317,8 +317,13 @@ L.Handler.PathTransform = L.Handler.extend({ this._rectShape = this._rect.toGeoJSON(); - this._handlersGroup.removeLayer(this._handleLine); - this._handlersGroup.removeLayer(this._rotationMarker); + if (this._handleLine) { + this._handlersGroup.removeLayer(this._handleLine); + } + + if (this._rotationMarker) { + this._handlersGroup.removeLayer(this._rotationMarker); + } this._handleLine = this._rotationMarker = null; From f32f5a5ada1207167cabafd59ea5818b3841182c Mon Sep 17 00:00:00 2001 From: Alexander Milevski Date: Thu, 29 Jun 2017 22:26:46 +0200 Subject: [PATCH 03/46] leaflet 1.1.0 --- dist/L.Path.Transform-src.js | 836 +- dist/L.Path.Transform.js | 6 +- example/js/app.js | 12 +- example/js/bundle.js | 24296 +++++++++++++++++---------------- package-lock.json | 2674 ++++ package.json | 18 +- src/Path.Transform.js | 13 +- src/Util.js | 10 +- 8 files changed, 15479 insertions(+), 12386 deletions(-) create mode 100644 package-lock.json diff --git a/dist/L.Path.Transform-src.js b/dist/L.Path.Transform-src.js index cc2e91c..d8faa54 100644 --- a/dist/L.Path.Transform-src.js +++ b/dist/L.Path.Transform-src.js @@ -9,370 +9,403 @@ * Renderer-independent */ L.Path.include({ + /** + * Applies matrix transformation to SVG + * @param {Array.?} matrix + */ + _transform: function (matrix) { + if (this._renderer) { + if (matrix) { + this._renderer.transformPath(this, matrix); + } else { + // reset transform matrix + this._renderer._resetTransformPath(this); + this._update(); + } + } + return this; + }, - /** - * Applies matrix transformation to SVG - * @param {Array.?} matrix - */ - _transform: function(matrix) { - if (this._renderer) { - if (matrix) { - this._renderer.transformPath(this, matrix); - } else { - // reset transform matrix - this._renderer._resetTransformPath(this); - this._update(); - } - } - return this; - }, - - /** - * Check if the feature was dragged, that'll supress the click event - * on mouseup. That fixes popups for example - * - * @param {MouseEvent} e - */ - _onMouseClick: function(e) { - if ((this.dragging && this.dragging.moved()) || - (this._map.dragging && this._map.dragging.moved())) { - return; - } - - this._fireMouseEvent(e); - } + /** + * Check if the feature was dragged, that'll supress the click event + * on mouseup. That fixes popups for example + * + * @param {MouseEvent} e + */ + _onMouseClick: function (e) { + if ( + (this.dragging && this.dragging.moved()) || + (this._map.dragging && this._map.dragging.moved()) + ) { + return; + } + this._fireMouseEvent(e); + }, }); +var END = { + mousedown: 'mouseup', + touchstart: 'touchend', + pointerdown: 'touchend', + MSPointerDown: 'touchend', +}; + +var MOVE = { + mousedown: 'mousemove', + touchstart: 'touchmove', + pointerdown: 'touchmove', + MSPointerDown: 'touchmove', +}; + +function distance(a, b) { + var dx = a.x - b.x, + dy = a.y - b.y; + return Math.sqrt(dx * dx + dy * dy); +} + /** * Drag handler * @class L.Path.Drag * @extends {L.Handler} */ -L.Handler.PathDrag = L.Handler.extend( /** @lends L.Path.Drag.prototype */ { - - statics: { - DRAGGING_CLS: 'leaflet-path-draggable', - }, - - - /** - * @param {L.Path} path - * @constructor - */ - initialize: function(path) { +L.Handler.PathDrag = L.Handler.extend( + /** @lends L.Path.Drag.prototype */ { + statics: { + DRAGGING_CLS: 'leaflet-path-draggable', + }, /** - * @type {L.Path} + * @param {L.Path} path + * @constructor */ - this._path = path; + initialize: function (path) { + /** + * @type {L.Path} + */ + this._path = path; + + /** + * @type {Array.} + */ + this._matrix = null; + + /** + * @type {L.Point} + */ + this._startPoint = null; + + /** + * @type {L.Point} + */ + this._dragStartPoint = null; + + /** + * @type {Boolean} + */ + this._mapDraggingWasEnabled = false; + + this._path._dragMoved = false; + }, /** - * @type {Array.} + * Enable dragging */ - this._matrix = null; + addHooks: function () { + this._path.on('mousedown', this._onDragStart, this); + + this._path.options.className = this._path.options.className + ? this._path.options.className + ' ' + L.Handler.PathDrag.DRAGGING_CLS + : L.Handler.PathDrag.DRAGGING_CLS; + + if (this._path._path) { + L.DomUtil.addClass(this._path._path, L.Handler.PathDrag.DRAGGING_CLS); + } + }, /** - * @type {L.Point} + * Disable dragging */ - this._startPoint = null; + removeHooks: function () { + this._path.off('mousedown', this._onDragStart, this); + + this._path.options.className = this._path.options.className.replace( + new RegExp('\\s+' + L.Handler.PathDrag.DRAGGING_CLS), + '' + ); + if (this._path._path) { + L.DomUtil.removeClass( + this._path._path, + L.Handler.PathDrag.DRAGGING_CLS + ); + } + }, /** - * @type {L.Point} + * @return {Boolean} */ - this._dragStartPoint = null; + moved: function () { + return this._path._dragMoved; + }, /** - * @type {Boolean} + * Start drag + * @param {L.MouseEvent} evt */ - this._mapDraggingWasEnabled = false; - - }, + _onDragStart: function (evt) { + var eventType = evt.originalEvent._simulated + ? 'touchstart' + : evt.originalEvent.type; + + this._mapDraggingWasEnabled = false; + this._startPoint = evt.containerPoint.clone(); + + this._dragStartPoint = evt.containerPoint.clone(); + this._matrix = [1, 0, 0, 1, 0, 0]; + L.DomEvent.stop(evt.originalEvent); + + L.DomUtil.addClass( + this._path._renderer._container, + 'leaflet-interactive' + ); + L.DomEvent.on(document, MOVE[eventType], this._onDrag, this).on( + document, + END[eventType], + this._onDragEnd, + this + ); + + //L.DomEvent.disableClickPropagation(this._path._renderer._container); + + if (this._path._map.dragging.enabled()) { + // I guess it's required because mousdown gets simulated with a delay + //this._path._map.dragging._draggable._onUp(evt); + + this._path._map.dragging.disable(); + this._mapDraggingWasEnabled = true; + } + this._path._dragMoved = false; - /** - * Enable dragging - */ - addHooks: function() { - this._path.on('mousedown', this._onDragStart, this); + if (this._path._popup) { + // that might be a case on touch devices as well + this._path._popup.close(); + } - this._path.options.className = this._path.options.className ? - (this._path.options.className + ' ' + L.Handler.PathDrag.DRAGGING_CLS) : - L.Handler.PathDrag.DRAGGING_CLS; + this._replaceCoordGetters(evt); + }, - if (this._path._path) { - L.DomUtil.addClass(this._path._path, L.Handler.PathDrag.DRAGGING_CLS); - } - }, + /** + * Dragging + * @param {L.MouseEvent} evt + */ + _onDrag: function (evt) { + L.DomEvent.stop(evt); - /** - * Disable dragging - */ - removeHooks: function() { - this._path.off('mousedown', this._onDragStart, this); + var first = evt.touches && evt.touches.length >= 1 ? evt.touches[0] : evt; + var containerPoint = this._path._map.mouseEventToContainerPoint(first); - this._path.options.className = this._path.options.className - .replace(new RegExp('\\s+' + L.Handler.PathDrag.DRAGGING_CLS), ''); - if (this._path._path) { - L.DomUtil.removeClass(this._path._path, L.Handler.PathDrag.DRAGGING_CLS); - } - }, + // skip taps + if (evt.type === 'touchmove' && !this._path._dragMoved) { + var totalMouseDragDistance = + this._dragStartPoint.distanceTo(containerPoint); + if (totalMouseDragDistance <= this._path._map.options.tapTolerance) { + return; + } + } - /** - * @return {Boolean} - */ - moved: function() { - return this._path._dragMoved; - }, + var x = containerPoint.x; + var y = containerPoint.y; - /** - * Start drag - * @param {L.MouseEvent} evt - */ - _onDragStart: function(evt) { - var eventType = evt.originalEvent._simulated ? 'touchstart' : evt.originalEvent.type; - - this._mapDraggingWasEnabled = false; - this._startPoint = evt.containerPoint.clone(); - this._dragStartPoint = evt.containerPoint.clone(); - this._matrix = [1, 0, 0, 1, 0, 0]; - L.DomEvent.stop(evt.originalEvent); - - L.DomUtil.addClass(this._path._renderer._container, 'leaflet-interactive'); - L.DomEvent - .on(document, L.Draggable.MOVE[eventType], this._onDrag, this) - .on(document, L.Draggable.END[eventType], this._onDragEnd, this); - - if (this._path._map.dragging.enabled()) { - // I guess it's required because mousdown gets simulated with a delay - //this._path._map.dragging._draggable._onUp(evt); - - this._path._map.dragging.disable(); - this._mapDraggingWasEnabled = true; - } - this._path._dragMoved = false; + var dx = x - this._startPoint.x; + var dy = y - this._startPoint.y; - if (this._path._popup) { // that might be a case on touch devices as well - this._path._popup._close(); - } + // Send events only if point was moved + if (dx || dy) { + if (!this._path._dragMoved) { + this._path._dragMoved = true; + this._path.options.interactive = false; + this._path._map.dragging._draggable._moved = true; - this._replaceCoordGetters(evt); - }, + this._path.fire('dragstart', evt); + // we don't want that to happen on click + this._path.bringToFront(); + } - /** - * Dragging - * @param {L.MouseEvent} evt - */ - _onDrag: function(evt) { - L.DomEvent.stop(evt); + this._matrix[4] += dx; + this._matrix[5] += dy; - var first = (evt.touches && evt.touches.length >= 1 ? evt.touches[0] : evt); - var containerPoint = this._path._map.mouseEventToContainerPoint(first); + this._startPoint.x = x; + this._startPoint.y = y; - // skip taps - if (evt.type === 'touchmove' && !this._path._dragMoved) { - var totalMouseDragDistance = this._dragStartPoint.distanceTo(containerPoint); - if (totalMouseDragDistance <= this._path._map.options.tapTolerance) { - return; + this._path.fire('predrag', evt); + this._path._transform(this._matrix); + this._path.fire('drag', evt); } - } - - var x = containerPoint.x; - var y = containerPoint.y; - - var dx = x - this._startPoint.x; - var dy = y - this._startPoint.y; + }, - // Send events only if point was moved - if (dx || dy) { - if (!this._path._dragMoved) { - this._path._dragMoved = true; - this._path.fire('dragstart', evt); - // we don't want that to happen on click - this._path.bringToFront(); + /** + * Dragging stopped, apply + * @param {L.MouseEvent} evt + */ + _onDragEnd: function (evt) { + var containerPoint = this._path._map.mouseEventToContainerPoint(evt); + var moved = this.moved(); + + // apply matrix + if (moved) { + this._transformPoints(this._matrix); + this._path._updatePath(); + this._path._project(); + this._path._transform(null); + + L.DomEvent.stop(evt); } - this._matrix[4] += dx; - this._matrix[5] += dy; - - this._startPoint.x = x; - this._startPoint.y = y; - - this._path.fire('predrag', evt); - this._path._transform(this._matrix); - this._path.fire('drag', evt); - } - }, - - /** - * Dragging stopped, apply - * @param {L.MouseEvent} evt - */ - _onDragEnd: function(evt) { - var containerPoint = this._path._map.mouseEventToContainerPoint(evt); - var moved = this.moved(); + L.DomEvent.off(document, 'mousemove touchmove', this._onDrag, this); + L.DomEvent.off(document, 'mouseup touchend', this._onDragEnd, this); - // apply matrix - if (moved) { - this._transformPoints(this._matrix); - this._path._updatePath(); - this._path._project(); - this._path._transform(null); - - L.DomEvent.stop(evt); - } + this._restoreCoordGetters(); + // consistency + if (moved) { + this._path.fire('dragend', { + distance: distance(this._dragStartPoint, containerPoint), + }); - L.DomEvent - .off(document, 'mousemove touchmove', this._onDrag, this) - .off(document, 'mouseup touchend', this._onDragEnd, this); - - this._restoreCoordGetters(); - - // consistency - if (moved) { - this._path.fire('dragend', { - distance: Math.sqrt( - L.LineUtil._sqDist(this._dragStartPoint, containerPoint) - ) - }); - - // hack for skipping the click in canvas-rendered layers - var contains = this._path._containsPoint; - this._path._containsPoint = L.Util.falseFn; - L.Util.requestAnimFrame(function() { - L.DomEvent._skipped({ type: 'click' }); - this._path._containsPoint = contains; - }, this); - } - - this._matrix = null; - this._startPoint = null; - this._dragStartPoint = null; - this._path._dragMoved = false; + // hack for skipping the click in canvas-rendered layers + var contains = this._path._containsPoint; + this._path._containsPoint = L.Util.falseFn; - if (this._mapDraggingWasEnabled) { - if (moved) L.DomEvent._fakeStop({ type: 'click' }); - this._path._map.dragging.enable(); - } - }, + L.Util.requestAnimFrame(function () { + this._path._dragMoved = false; + this._path.options.interactive = true; + this._path._containsPoint = contains; + }, this); + } + if (this._mapDraggingWasEnabled) { + //if (moved) L.DomEvent.fakeStop({ type: "click" }); + this._path._map.dragging.enable(); + } + }, - /** - * Applies transformation, does it in one sweep for performance, - * so don't be surprised about the code repetition. - * - * [ x ] [ a b tx ] [ x ] [ a * x + b * y + tx ] - * [ y ] = [ c d ty ] [ y ] = [ c * x + d * y + ty ] - * - * @param {Array.} matrix - */ - _transformPoints: function(matrix, dest) { - var path = this._path; - var i, len, latlng; + /** + * Applies transformation, does it in one sweep for performance, + * so don't be surprised about the code repetition. + * + * [ x ] [ a b tx ] [ x ] [ a * x + b * y + tx ] + * [ y ] = [ c d ty ] [ y ] = [ c * x + d * y + ty ] + * + * @param {Array.} matrix + */ + _transformPoints: function (matrix, dest) { + var path = this._path; + var i, len, latlng; - var px = L.point(matrix[4], matrix[5]); + var px = L.point(matrix[4], matrix[5]); - var crs = path._map.options.crs; - var transformation = crs.transformation; - var scale = crs.scale(path._map.getZoom()); - var projection = crs.projection; + var crs = path._map.options.crs; + var transformation = crs.transformation; + var scale = crs.scale(path._map.getZoom()); + var projection = crs.projection; - var diff = transformation.untransform(px, scale) - .subtract(transformation.untransform(L.point(0, 0), scale)); - var applyTransform = !dest; + var diff = transformation + .untransform(px, scale) + .subtract(transformation.untransform(L.point(0, 0), scale)); + var applyTransform = !dest; - path._bounds = new L.LatLngBounds(); + path._bounds = new L.LatLngBounds(); - // console.time('transform'); - // all shifts are in-place - if (path._point) { // L.Circle - dest = projection.unproject( - projection.project(path._latlng)._add(diff)); - if (applyTransform) { - path._latlng = dest; - path._point._add(px); - } - } else if (path._rings || path._parts) { // everything else - var rings = path._rings || path._parts; - var latlngs = path._latlngs; - dest = dest || latlngs; - if (!L.Util.isArray(latlngs[0])) { // polyline - latlngs = [latlngs]; - dest = [dest]; - } - for (i = 0, len = rings.length; i < len; i++) { - dest[i] = dest[i] || []; - for (var j = 0, jj = rings[i].length; j < jj; j++) { - latlng = latlngs[i][j]; - dest[i][j] = projection - .unproject(projection.project(latlng)._add(diff)); - if (applyTransform) { - path._bounds.extend(latlngs[i][j]); - rings[i][j]._add(px); + // console.time('transform'); + // all shifts are in-place + if (path._point) { + // L.Circle + dest = projection.unproject( + projection.project(path._latlng)._add(diff) + ); + if (applyTransform) { + path._latlng = dest; + path._point._add(px); + } + } else if (path._rings || path._parts) { + // everything else + var rings = path._rings || path._parts; + var latlngs = path._latlngs; + dest = dest || latlngs; + if (!L.Util.isArray(latlngs[0])) { + // polyline + latlngs = [latlngs]; + dest = [dest]; + } + for (i = 0, len = rings.length; i < len; i++) { + dest[i] = dest[i] || []; + for (var j = 0, jj = rings[i].length; j < jj; j++) { + latlng = latlngs[i][j]; + dest[i][j] = projection.unproject( + projection.project(latlng)._add(diff) + ); + if (applyTransform) { + path._bounds.extend(latlngs[i][j]); + rings[i][j]._add(px); + } } } } - } - return dest; - // console.timeEnd('transform'); - }, - - - - /** - * If you want to read the latlngs during the drag - your right, - * but they have to be transformed - */ - _replaceCoordGetters: function() { - if (this._path.getLatLng) { // Circle, CircleMarker - this._path.getLatLng_ = this._path.getLatLng; - this._path.getLatLng = L.Util.bind(function() { - return this.dragging._transformPoints(this.dragging._matrix, {}); - }, this._path); - } else if (this._path.getLatLngs) { - this._path.getLatLngs_ = this._path.getLatLngs; - this._path.getLatLngs = L.Util.bind(function() { - return this.dragging._transformPoints(this.dragging._matrix, []); - }, this._path); - } - }, + return dest; + // console.timeEnd('transform'); + }, + /** + * If you want to read the latlngs during the drag - your right, + * but they have to be transformed + */ + _replaceCoordGetters: function () { + if (this._path.getLatLng) { + // Circle, CircleMarker + this._path.getLatLng_ = this._path.getLatLng; + this._path.getLatLng = L.Util.bind(function () { + return this.dragging._transformPoints(this.dragging._matrix, {}); + }, this._path); + } else if (this._path.getLatLngs) { + this._path.getLatLngs_ = this._path.getLatLngs; + this._path.getLatLngs = L.Util.bind(function () { + return this.dragging._transformPoints(this.dragging._matrix, []); + }, this._path); + } + }, - /** - * Put back the getters - */ - _restoreCoordGetters: function() { - if (this._path.getLatLng_) { - this._path.getLatLng = this._path.getLatLng_; - delete this._path.getLatLng_; - } else if (this._path.getLatLngs_) { - this._path.getLatLngs = this._path.getLatLngs_; - delete this._path.getLatLngs_; - } + /** + * Put back the getters + */ + _restoreCoordGetters: function () { + if (this._path.getLatLng_) { + this._path.getLatLng = this._path.getLatLng_; + delete this._path.getLatLng_; + } else if (this._path.getLatLngs_) { + this._path.getLatLngs = this._path.getLatLngs_; + delete this._path.getLatLngs_; + } + }, } - -}); - +); /** * @param {L.Path} layer * @return {L.Path} */ -L.Handler.PathDrag.makeDraggable = function(layer) { +L.Handler.PathDrag.makeDraggable = function (layer) { layer.dragging = new L.Handler.PathDrag(layer); return layer; }; - /** * Also expose as a method * @return {L.Path} */ -L.Path.prototype.makeDraggable = function() { +L.Path.prototype.makeDraggable = function () { return L.Handler.PathDrag.makeDraggable(this); }; - -L.Path.addInitHook(function() { +L.Path.addInitHook(function () { if (this.options.draggable) { // ensure interactive this.options.interactive = true; @@ -388,93 +421,106 @@ L.Path.addInitHook(function() { } }); L.SVG.include({ + /** + * Reset transform matrix + */ + _resetTransformPath: function (layer) { + layer._path.setAttributeNS(null, 'transform', ''); + }, - /** - * Reset transform matrix - */ - _resetTransformPath: function(layer) { - layer._path.setAttributeNS(null, 'transform', ''); - }, - - /** - * Applies matrix transformation to SVG - * @param {L.Path} layer - * @param {Array.} matrix - */ - transformPath: function(layer, matrix) { - layer._path.setAttributeNS(null, 'transform', - 'matrix(' + matrix.join(' ') + ')'); - } - + /** + * Applies matrix transformation to SVG + * @param {L.Path} layer + * @param {Array.} matrix + */ + transformPath: function (layer, matrix) { + layer._path.setAttributeNS( + null, + 'transform', + 'matrix(' + matrix.join(' ') + ')' + ); + }, }); -L.SVG.include(!L.Browser.vml ? {} : { - - /** - * Reset transform matrix - */ - _resetTransformPath: function(layer) { - if (layer._skew) { - // super important! workaround for a 'jumping' glitch: - // disable transform before removing it - layer._skew.on = false; - layer._path.removeChild(layer._skew); - layer._skew = null; - } - }, - - /** - * Applies matrix transformation to VML - * @param {L.Path} layer - * @param {Array.} matrix - */ - transformPath: function(layer, matrix) { - var skew = layer._skew; - - if (!skew) { - skew = L.SVG.create('skew'); - layer._path.appendChild(skew); - skew.style.behavior = 'url(#default#VML)'; - layer._skew = skew; - } - - // handle skew/translate separately, cause it's broken - var mt = matrix[0].toFixed(8) + ' ' + matrix[1].toFixed(8) + ' ' + - matrix[2].toFixed(8) + ' ' + matrix[3].toFixed(8) + ' 0 0'; - var offset = Math.floor(matrix[4]).toFixed() + ', ' + - Math.floor(matrix[5]).toFixed() + ''; - - var s = this._path.style; - var l = parseFloat(s.left); - var t = parseFloat(s.top); - var w = parseFloat(s.width); - var h = parseFloat(s.height); - - if (isNaN(l)) l = 0; - if (isNaN(t)) t = 0; - if (isNaN(w) || !w) w = 1; - if (isNaN(h) || !h) h = 1; - - var origin = (-l / w - 0.5).toFixed(8) + ' ' + (-t / h - 0.5).toFixed(8); - - skew.on = 'f'; - skew.matrix = mt; - skew.origin = origin; - skew.offset = offset; - skew.on = true; - } +L.SVG.include( + !L.Browser.vml + ? {} + : { + /** + * Reset transform matrix + */ + _resetTransformPath: function (layer) { + if (layer._skew) { + // super important! workaround for a 'jumping' glitch: + // disable transform before removing it + layer._skew.on = false; + layer._path.removeChild(layer._skew); + layer._skew = null; + } + }, + + /** + * Applies matrix transformation to VML + * @param {L.Path} layer + * @param {Array.} matrix + */ + transformPath: function (layer, matrix) { + var skew = layer._skew; + + if (!skew) { + skew = L.SVG.create('skew'); + layer._path.appendChild(skew); + skew.style.behavior = 'url(#default#VML)'; + layer._skew = skew; + } -}); -L.Util.trueFn = function() { + // handle skew/translate separately, cause it's broken + var mt = + matrix[0].toFixed(8) + + ' ' + + matrix[1].toFixed(8) + + ' ' + + matrix[2].toFixed(8) + + ' ' + + matrix[3].toFixed(8) + + ' 0 0'; + var offset = + Math.floor(matrix[4]).toFixed() + + ', ' + + Math.floor(matrix[5]).toFixed() + + ''; + + var s = this._path.style; + var l = parseFloat(s.left); + var t = parseFloat(s.top); + var w = parseFloat(s.width); + var h = parseFloat(s.height); + + if (isNaN(l)) l = 0; + if (isNaN(t)) t = 0; + if (isNaN(w) || !w) w = 1; + if (isNaN(h) || !h) h = 1; + + var origin = + (-l / w - 0.5).toFixed(8) + ' ' + (-t / h - 0.5).toFixed(8); + + skew.on = 'f'; + skew.matrix = mt; + skew.origin = origin; + skew.offset = offset; + skew.on = true; + }, + } +); +function TRUE_FN() { return true; -}; +} L.Canvas.include({ - /** * Do nothing * @param {L.Path} layer */ - _resetTransformPath: function(layer) { + _resetTransformPath: function (layer) { if (!this._containerCopy) return; delete this._containerCopy; @@ -487,7 +533,6 @@ L.Canvas.include({ } }, - /** * Algorithm outline: * @@ -503,20 +548,22 @@ L.Canvas.include({ * @param {L.Path} layer * @param {Array.} matrix */ - transformPath: function(layer, matrix) { - var copy = this._containerCopy; - var ctx = this._ctx, copyCtx; - var m = L.Browser.retina ? 2 : 1; + transformPath: function (layer, matrix) { + var copy = this._containerCopy; + var ctx = this._ctx, + copyCtx; + var m = L.Browser.retina ? 2 : 1; var bounds = this._bounds; - var size = bounds.getSize(); - var pos = bounds.min; + var size = bounds.getSize(); + var pos = bounds.min; - if (!copy) { // get copy of all rendered layers + if (!copy) { + // get copy of all rendered layers copy = this._containerCopy = document.createElement('canvas'); copyCtx = copy.getContext('2d'); // document.body.appendChild(copy); - copy.width = m * size.x; + copy.width = m * size.x; copy.height = m * size.y; this._removePath(layer); @@ -528,7 +575,7 @@ L.Canvas.include({ // avoid flickering because of the 'mouseover's layer._containsPoint_ = layer._containsPoint; - layer._containsPoint = L.Util.trueFn; + layer._containsPoint = TRUE_FN; } ctx.save(); @@ -546,8 +593,7 @@ L.Canvas.include({ this._drawing = false; ctx.restore(); - } - + }, }); /** * Drag/rotate/resize handler for [leaflet](http://leafletjs.com) vector features. @@ -556,6 +602,12 @@ L.Canvas.include({ * @license MIT * @preserve */ +/** + * @namespace + * @type {Object} + */ +L.PathTransform = {}; + /** * Point on the line segment or its extention * @@ -564,7 +616,7 @@ L.Canvas.include({ * @param {Number} distPx * @return {L.Point} */ -L.LineUtil.pointOnLine = function(start, final, distPx) { +L.PathTransform.pointOnLine = function(start, final, distPx) { var ratio = 1 + distPx / start.distanceTo(final); return new L.Point( start.x + (final.x - start.x) * ratio, @@ -576,7 +628,7 @@ L.LineUtil.pointOnLine = function(start, final, distPx) { /** * Deep merge objects. */ -L.Util.merge = function() { +L.PathTransform.merge = function() { var i = 1; var key, val; var obj = arguments[i]; @@ -811,11 +863,6 @@ L.Matrix.prototype = { L.matrix = function(a, b, c, d, e, f) { return new L.Matrix(a, b, c, d, e, f); }; -/** - * @namespace - * @type {Object} - */ -L.PathTransform = {}; /** @@ -997,7 +1044,7 @@ L.Handler.PathTransform = L.Handler.extend({ this.disable(); } - this.options = L.Util.merge({}, + this.options = L.PathTransform.merge({}, L.Handler.PathTransform.prototype.options, options); @@ -1130,8 +1177,13 @@ L.Handler.PathTransform = L.Handler.extend({ this._rectShape = this._rect.toGeoJSON(); - this._handlersGroup.removeLayer(this._handleLine); - this._handlersGroup.removeLayer(this._rotationMarker); + if (this._handleLine) { + this._handlersGroup.removeLayer(this._handleLine); + } + + if (this._rotationMarker) { + this._handlersGroup.removeLayer(this._rotationMarker); + } this._handleLine = this._rotationMarker = null; @@ -1298,7 +1350,7 @@ L.Handler.PathTransform = L.Handler.extend({ (latlngs[1].lng + latlngs[2].lng) / 2); var handlerPosition = map.layerPointToLatLng( - L.LineUtil.pointOnLine( + L.PathTransform.pointOnLine( map.latLngToLayerPoint(bottom), map.latLngToLayerPoint(topPoint), this.options.handleLength) diff --git a/dist/L.Path.Transform.js b/dist/L.Path.Transform.js index 1a96412..9754d7d 100644 --- a/dist/L.Path.Transform.js +++ b/dist/L.Path.Transform.js @@ -3,11 +3,11 @@ * @author Alexander Milevski * @preserve */ -L.Path.include({_transform:function(t){if(this._renderer){if(t){this._renderer.transformPath(this,t)}else{this._renderer._resetTransformPath(this);this._update()}}return this},_onMouseClick:function(t){if(this.dragging&&this.dragging.moved()||this._map.dragging&&this._map.dragging.moved()){return}this._fireMouseEvent(t)}});L.Handler.PathDrag=L.Handler.extend({statics:{DRAGGING_CLS:"leaflet-path-draggable"},initialize:function(t){this._path=t;this._matrix=null;this._startPoint=null;this._dragStartPoint=null;this._mapDraggingWasEnabled=false},addHooks:function(){this._path.on("mousedown",this._onDragStart,this);this._path.options.className=this._path.options.className?this._path.options.className+" "+L.Handler.PathDrag.DRAGGING_CLS:L.Handler.PathDrag.DRAGGING_CLS;if(this._path._path){L.DomUtil.addClass(this._path._path,L.Handler.PathDrag.DRAGGING_CLS)}},removeHooks:function(){this._path.off("mousedown",this._onDragStart,this);this._path.options.className=this._path.options.className.replace(new RegExp("\\s+"+L.Handler.PathDrag.DRAGGING_CLS),"");if(this._path._path){L.DomUtil.removeClass(this._path._path,L.Handler.PathDrag.DRAGGING_CLS)}},moved:function(){return this._path._dragMoved},_onDragStart:function(t){var i=t.originalEvent._simulated?"touchstart":t.originalEvent.type;this._mapDraggingWasEnabled=false;this._startPoint=t.containerPoint.clone();this._dragStartPoint=t.containerPoint.clone();this._matrix=[1,0,0,1,0,0];L.DomEvent.stop(t.originalEvent);L.DomUtil.addClass(this._path._renderer._container,"leaflet-interactive");L.DomEvent.on(document,L.Draggable.MOVE[i],this._onDrag,this).on(document,L.Draggable.END[i],this._onDragEnd,this);if(this._path._map.dragging.enabled()){this._path._map.dragging.disable();this._mapDraggingWasEnabled=true}this._path._dragMoved=false;if(this._path._popup){this._path._popup._close()}this._replaceCoordGetters(t)},_onDrag:function(t){L.DomEvent.stop(t);var i=t.touches&&t.touches.length>=1?t.touches[0]:t;var a=this._path._map.mouseEventToContainerPoint(i);if(t.type==="touchmove"&&!this._path._dragMoved){var n=this._dragStartPoint.distanceTo(a);if(n<=this._path._map.options.tapTolerance){return}}var r=a.x;var s=a.y;var e=r-this._startPoint.x;var o=s-this._startPoint.y;if(e||o){if(!this._path._dragMoved){this._path._dragMoved=true;this._path.fire("dragstart",t);this._path.bringToFront()}this._matrix[4]+=e;this._matrix[5]+=o;this._startPoint.x=r;this._startPoint.y=s;this._path.fire("predrag",t);this._path._transform(this._matrix);this._path.fire("drag",t)}},_onDragEnd:function(t){var i=this._path._map.mouseEventToContainerPoint(t);var a=this.moved();if(a){this._transformPoints(this._matrix);this._path._updatePath();this._path._project();this._path._transform(null);L.DomEvent.stop(t)}L.DomEvent.off(document,"mousemove touchmove",this._onDrag,this).off(document,"mouseup touchend",this._onDragEnd,this);this._restoreCoordGetters();if(a){this._path.fire("dragend",{distance:Math.sqrt(L.LineUtil._sqDist(this._dragStartPoint,i))});var n=this._path._containsPoint;this._path._containsPoint=L.Util.falseFn;L.Util.requestAnimFrame(function(){L.DomEvent._skipped({type:"click"});this._path._containsPoint=n},this)}this._matrix=null;this._startPoint=null;this._dragStartPoint=null;this._path._dragMoved=false;if(this._mapDraggingWasEnabled){if(a)L.DomEvent._fakeStop({type:"click"});this._path._map.dragging.enable()}},_transformPoints:function(t,i){var a=this._path;var n,r,s;var e=L.point(t[4],t[5]);var o=a._map.options.crs;var h=o.transformation;var _=o.scale(a._map.getZoom());var l=o.projection;var p=h.untransform(e,_).subtract(h.untransform(L.point(0,0),_));var d=!i;a._bounds=new L.LatLngBounds;if(a._point){i=l.unproject(l.project(a._latlng)._add(p));if(d){a._latlng=i;a._point._add(e)}}else if(a._rings||a._parts){var g=a._rings||a._parts;var f=a._latlngs;i=i||f;if(!L.Util.isArray(f[0])){f=[f];i=[i]}for(n=0,r=g.length;n=1?t.touches[0]:t;var a=this._path._map.mouseEventToContainerPoint(i);if(t.type==="touchmove"&&!this._path._dragMoved){var n=this._dragStartPoint.distanceTo(a);if(n<=this._path._map.options.tapTolerance){return}}var r=a.x;var s=a.y;var e=r-this._startPoint.x;var o=s-this._startPoint.y;if(e||o){if(!this._path._dragMoved){this._path._dragMoved=true;this._path.options.interactive=false;this._path._map.dragging._draggable._moved=true;this._path.fire("dragstart",t);this._path.bringToFront()}this._matrix[4]+=e;this._matrix[5]+=o;this._startPoint.x=r;this._startPoint.y=s;this._path.fire("predrag",t);this._path._transform(this._matrix);this._path.fire("drag",t)}},_onDragEnd:function(t){var i=this._path._map.mouseEventToContainerPoint(t);var a=this.moved();if(a){this._transformPoints(this._matrix);this._path._updatePath();this._path._project();this._path._transform(null);L.DomEvent.stop(t)}L.DomEvent.off(document,"mousemove touchmove",this._onDrag,this);L.DomEvent.off(document,"mouseup touchend",this._onDragEnd,this);this._restoreCoordGetters();if(a){this._path.fire("dragend",{distance:distance(this._dragStartPoint,i)});var n=this._path._containsPoint;this._path._containsPoint=L.Util.falseFn;L.Util.requestAnimFrame(function(){this._path._dragMoved=false;this._path.options.interactive=true;this._path._containsPoint=n},this)}if(this._mapDraggingWasEnabled){this._path._map.dragging.enable()}},_transformPoints:function(t,i){var a=this._path;var n,r,s;var e=L.point(t[4],t[5]);var o=a._map.options.crs;var h=o.transformation;var _=o.scale(a._map.getZoom());var l=o.projection;var d=h.untransform(e,_).subtract(h.untransform(L.point(0,0),_));var p=!i;a._bounds=new L.LatLngBounds;if(a._point){i=l.unproject(l.project(a._latlng)._add(d));if(p){a._latlng=i;a._point._add(e)}}else if(a._rings||a._parts){var f=a._rings||a._parts;var g=a._latlngs;i=i||g;if(!L.Util.isArray(g[0])){g=[g];i=[i]}for(n=0,r=f.length;n * @license MIT * @preserve - */ -L.LineUtil.pointOnLine=function(t,i,a){var n=1+a/t.distanceTo(i);return new L.Point(t.x+(i.x-t.x)*n,t.y+(i.y-t.y)*n)};L.Util.merge=function(){var t=1;var i,a;var n=arguments[t];function r(t){return Object.prototype.toString.call(t)==="[object Object]"}var s=arguments[0];while(n){n=arguments[t++];for(i in n){if(!n.hasOwnProperty(i)){continue}a=n[i];if(r(a)&&r(s[i])){s[i]=L.Util.merge(s[i],a)}else{s[i]=a}}}return s};L.Matrix=function(t,i,a,n,r,s){this._matrix=[t,i,a,n,r,s]};L.Matrix.prototype={transform:function(t){return this._transform(t.clone())},_transform:function(t){var i=this._matrix;var a=t.x,n=t.y;t.x=i[0]*a+i[1]*n+i[4];t.y=i[2]*a+i[3]*n+i[5];return t},untransform:function(t){var i=this._matrix;return new L.Point((t.x/i[0]-i[4])/i[0],(t.y/i[2]-i[5])/i[2])},clone:function(){var t=this._matrix;return new L.Matrix(t[0],t[1],t[2],t[3],t[4],t[5])},translate:function(t){if(t===undefined){return new L.Point(this._matrix[4],this._matrix[5])}var i,a;if(typeof t==="number"){i=a=t}else{i=t.x;a=t.y}return this._add(1,0,0,1,i,a)},scale:function(t,i){if(t===undefined){return new L.Point(this._matrix[0],this._matrix[3])}var a,n;i=i||L.point(0,0);if(typeof t==="number"){a=n=t}else{a=t.x;n=t.y}return this._add(a,0,0,n,i.x,i.y)._add(1,0,0,1,-i.x,-i.y)},rotate:function(t,i){var a=Math.cos(t);var n=Math.sin(t);i=i||new L.Point(0,0);return this._add(a,n,-n,a,i.x,i.y)._add(1,0,0,1,-i.x,-i.y)},flip:function(){this._matrix[1]*=-1;this._matrix[2]*=-1;return this},_add:function(t,i,a,n,r,s){var e=[[],[],[]];var o=this._matrix;var h=[[o[0],o[2],o[4]],[o[1],o[3],o[5]],[0,0,1]];var _=[[t,a,r],[i,n,s],[0,0,1]],l;if(t&&t instanceof L.Matrix){o=t._matrix;_=[[o[0],o[2],o[4]],[o[1],o[3],o[5]],[0,0,1]]}for(var p=0;p<3;p++){for(var d=0;d<3;d++){l=0;for(var g=0;g<3;g++){l+=h[p][g]*_[g][d]}e[p][d]=l}}this._matrix=[e[0][0],e[1][0],e[0][1],e[1][1],e[0][2],e[1][2]];return this}};L.matrix=function(t,i,a,n,r,s){return new L.Matrix(t,i,a,n,r,s)};L.PathTransform={};L.PathTransform.Handle=L.CircleMarker.extend({options:{className:"leaflet-path-transform-handler"},onAdd:function(t){L.CircleMarker.prototype.onAdd.call(this,t);if(this._path&&this.options.setCursor){this._path.style.cursor=L.PathTransform.Handle.CursorsByType[this.options.index]}}});L.PathTransform.Handle.CursorsByType=["nesw-resize","nwse-resize","nesw-resize","nwse-resize"];L.PathTransform.RotateHandle=L.PathTransform.Handle.extend({options:{className:"leaflet-path-transform-handler transform-handler--rotate"},onAdd:function(t){L.CircleMarker.prototype.onAdd.call(this,t);if(this._path&&this.options.setCursor){this._path.style.cursor="all-scroll"}}});L.Handler.PathTransform=L.Handler.extend({options:{rotation:true,rotationAnchor:null,scaling:true,uniformScaling:true,maxZoom:22,handlerOptions:{radius:5,fillColor:"#ffffff",color:"#202020",fillOpacity:1,weight:2,opacity:.7,setCursor:true},boundsOptions:{weight:1,opacity:1,dashArray:[3,3],fill:false},rotateHandleOptions:{weight:1,opacity:1,setCursor:true},handleLength:20,edgesCount:4,handleClass:L.PathTransform.Handle,rotateHandleClass:L.PathTransform.RotateHandle},initialize:function(t){this._path=t;this._map=null;this._activeMarker=null;this._originMarker=null;this._rotationMarker=null;this._rotationOrigin=null;this._scaleOrigin=null;this._angle=0;this._scale=L.point(1,1);this._initialDist=0;this._initialDistX=0;this._initialDistY=0;this._rotationStart=null;this._rotationOriginPt=null;this._matrix=new L.Matrix(1,0,0,1,0,0);this._projectedMatrix=new L.Matrix(1,0,0,1,0,0);this._handlersGroup=null;this._rect=null;this._handlers=[];this._handleLine=null},enable:function(t){if(this._path._map){this._map=this._path._map;if(t){this.setOptions(t)}L.Handler.prototype.enable.call(this)}},addHooks:function(){this._createHandlers();this._path.on("dragstart",this._onDragStart,this).on("dragend",this._onDragEnd,this)},removeHooks:function(){this._hideHandlers();this._path.off("dragstart",this._onDragStart,this).off("dragend",this._onDragEnd,this);this._handlersGroup=null;this._rect=null;this._handlers=[]},setOptions:function(t){var i=this._enabled;if(i){this.disable()}this.options=L.Util.merge({},L.Handler.PathTransform.prototype.options,t);if(i){this.enable()}return this},rotate:function(t,i){return this.transform(t,null,i)},scale:function(t,i){if(typeof t==="number"){t=L.point(t,t)}return this.transform(0,t,null,i)},transform:function(t,i,a,n){var r=this._path.getCenter();a=a||r;n=n||r;this._map=this._path._map;this._transformPoints(this._path,t,i,a,n);return this},_update:function(){var t=this._matrix;for(var i=0,a=this._handlers.length;i=0;i--){t.removeLayer(this._handlers[i])}this._createHandlers()},_transformGeometries:function(){this._path._transform(null);this._rect._transform(null);if(this.options.rotation){this._handleLine._transform(null);this._transformPoints(this._path,this._angle,null,this.options.rotationAnchor);this._transformPoints(this._rect,this._angle,null,this.options.rotationAnchor);this._transformPoints(this._handleLine,this._angle,null,this.options.rotationAnchor)}else{this._transformPoints(this._path);this._transformPoints(this._rect)}},_getProjectedMatrix:function(t,i,a,n){var r=this._map;var s=r.getMaxZoom()||this.options.maxZoom;var e=L.matrix(1,0,0,1,0,0);var o;t=t||this._angle||0;i=i||this._scale||L.point(1,1);if(!(i.x===1&&i.y===1)){n=n||this._scaleOrigin;o=r.project(n,s);e=e._add(L.matrix(1,0,0,1,o.x,o.y))._add(L.matrix(i.x,0,0,i.y,0,0))._add(L.matrix(1,0,0,1,-o.x,-o.y))}if(t){a=a||this._rotationOrigin;o=r.project(a,s);e=e.rotate(t,o).flip()}return e},_transformPoint:function(t,i,a,n){return a.unproject(i.transform(a.project(t,n)),n)},_transformPoints:function(t,i,a,n,r){var s=t._map;var e=s.getMaxZoom()||this.options.maxZoom;var o,h;var _=this._projectedMatrix=this._getProjectedMatrix(i,a,n,r);if(t._point){t._latlng=this._transformPoint(t._latlng,_,s,e)}else if(t._rings||t._parts){var l=t._rings;var p=t._latlngs;t._bounds=new L.LatLngBounds;if(!L.Util.isArray(p[0])){p=[p]}for(o=0,h=l.length;o=2){return new L.LatLng(t[0],t[1])}else if(t instanceof L.LatLng){return t}}var i=this._rect._latlngs[0];var a=i[0];var n=i[2];return new L.LatLng((a.lat+n.lat)/2,(a.lng+n.lng)/2)},_onRotateStart:function(t){var i=this._map;i.dragging.disable();this._originMarker=null;this._rotationOriginPt=i.latLngToLayerPoint(this._getRotationOrigin());this._rotationStart=t.layerPoint;this._initialMatrix=this._matrix.clone();this._angle=0;this._path._map.on("mousemove",this._onRotate,this).on("mouseup",this._onRotateEnd,this);this._cachePoints();this._path.fire("transformstart",{layer:this._path}).fire("rotatestart",{layer:this._path,rotation:0})},_onRotate:function(t){var i=t.layerPoint;var a=this._rotationStart;var n=this._rotationOriginPt;this._angle=Math.atan2(i.y-n.y,i.x-n.x)-Math.atan2(a.y-n.y,a.x-n.x);this._matrix=this._initialMatrix.clone().rotate(this._angle,n).flip();this._update();this._path.fire("rotate",{layer:this._path,rotation:this._angle})},_onRotateEnd:function(t){this._path._map.off("mousemove",this._onRotate,this).off("mouseup",this._onRotateEnd,this);this._apply();this._path.fire("rotateend",{layer:this._path,rotation:this._angle})},_onScaleStart:function(t){var i=t.target;var a=this._map;a.dragging.disable();this._activeMarker=i;this._originMarker=this._handlers[(i.options.index+2)%4];this._scaleOrigin=this._originMarker.getLatLng();this._initialMatrix=this._matrix.clone();this._cachePoints();this._map.on("mousemove",this._onScale,this).on("mouseup",this._onScaleEnd,this);this._initialDist=this._originMarker._point.distanceTo(this._activeMarker._point);this._initialDistX=this._originMarker._point.x-this._activeMarker._point.x;this._initialDistY=this._originMarker._point.y-this._activeMarker._point.y;this._path.fire("transformstart",{layer:this._path}).fire("scalestart",{layer:this._path,scale:L.point(1,1)});this._map.removeLayer(this._handleLine);this._map.removeLayer(this._rotationMarker)},_onScale:function(t){var i=this._originMarker._point;var a,n;if(this.options.uniformScaling){a=i.distanceTo(t.layerPoint)/this._initialDist;n=a}else{a=(i.x-t.layerPoint.x)/this._initialDistX;n=(i.y-t.layerPoint.y)/this._initialDistY}this._scale=new L.Point(a,n);this._matrix=this._initialMatrix.clone().scale(this._scale,i);this._update();this._path.fire("scale",{layer:this._path,scale:this._scale.clone()})},_onScaleEnd:function(t){this._map.off("mousemove",this._onScale,this).off("mouseup",this._onScaleEnd,this);this._map.addLayer(this._handleLine);this._map.addLayer(this._rotationMarker);this._apply();this._path.fire("scaleend",{layer:this._path,scale:this._scale.clone()})},_cachePoints:function(){this._handlersGroup.eachLayer(function(t){t.bringToFront()});for(var t=0,i=this._handlers.length;t=0;i--){t.removeLayer(this._handlers[i])}this._createHandlers()},_transformGeometries:function(){this._path._transform(null);this._rect._transform(null);if(this.options.rotation){this._handleLine._transform(null);this._transformPoints(this._path,this._angle,null,this.options.rotationAnchor);this._transformPoints(this._rect,this._angle,null,this.options.rotationAnchor);this._transformPoints(this._handleLine,this._angle,null,this.options.rotationAnchor)}else{this._transformPoints(this._path);this._transformPoints(this._rect)}},_getProjectedMatrix:function(t,i,a,n){var r=this._map;var s=r.getMaxZoom()||this.options.maxZoom;var e=L.matrix(1,0,0,1,0,0);var o;t=t||this._angle||0;i=i||this._scale||L.point(1,1);if(!(i.x===1&&i.y===1)){n=n||this._scaleOrigin;o=r.project(n,s);e=e._add(L.matrix(1,0,0,1,o.x,o.y))._add(L.matrix(i.x,0,0,i.y,0,0))._add(L.matrix(1,0,0,1,-o.x,-o.y))}if(t){a=a||this._rotationOrigin;o=r.project(a,s);e=e.rotate(t,o).flip()}return e},_transformPoint:function(t,i,a,n){return a.unproject(i.transform(a.project(t,n)),n)},_transformPoints:function(t,i,a,n,r){var s=t._map;var e=s.getMaxZoom()||this.options.maxZoom;var o,h;var _=this._projectedMatrix=this._getProjectedMatrix(i,a,n,r);if(t._point){t._latlng=this._transformPoint(t._latlng,_,s,e)}else if(t._rings||t._parts){var l=t._rings;var d=t._latlngs;t._bounds=new L.LatLngBounds;if(!L.Util.isArray(d[0])){d=[d]}for(o=0,h=l.length;o=2){return new L.LatLng(t[0],t[1])}else if(t instanceof L.LatLng){return t}}var i=this._rect._latlngs[0];var a=i[0];var n=i[2];return new L.LatLng((a.lat+n.lat)/2,(a.lng+n.lng)/2)},_onRotateStart:function(t){var i=this._map;i.dragging.disable();this._originMarker=null;this._rotationOriginPt=i.latLngToLayerPoint(this._getRotationOrigin());this._rotationStart=t.layerPoint;this._initialMatrix=this._matrix.clone();this._angle=0;this._path._map.on("mousemove",this._onRotate,this).on("mouseup",this._onRotateEnd,this);this._cachePoints();this._path.fire("transformstart",{layer:this._path}).fire("rotatestart",{layer:this._path,rotation:0})},_onRotate:function(t){var i=t.layerPoint;var a=this._rotationStart;var n=this._rotationOriginPt;this._angle=Math.atan2(i.y-n.y,i.x-n.x)-Math.atan2(a.y-n.y,a.x-n.x);this._matrix=this._initialMatrix.clone().rotate(this._angle,n).flip();this._update();this._path.fire("rotate",{layer:this._path,rotation:this._angle})},_onRotateEnd:function(t){this._path._map.off("mousemove",this._onRotate,this).off("mouseup",this._onRotateEnd,this);this._apply();this._path.fire("rotateend",{layer:this._path,rotation:this._angle})},_onScaleStart:function(t){var i=t.target;var a=this._map;a.dragging.disable();this._activeMarker=i;this._originMarker=this._handlers[(i.options.index+2)%4];this._scaleOrigin=this._originMarker.getLatLng();this._initialMatrix=this._matrix.clone();this._cachePoints();this._map.on("mousemove",this._onScale,this).on("mouseup",this._onScaleEnd,this);this._initialDist=this._originMarker._point.distanceTo(this._activeMarker._point);this._initialDistX=this._originMarker._point.x-this._activeMarker._point.x;this._initialDistY=this._originMarker._point.y-this._activeMarker._point.y;this._path.fire("transformstart",{layer:this._path}).fire("scalestart",{layer:this._path,scale:L.point(1,1)});this._map.removeLayer(this._handleLine);this._map.removeLayer(this._rotationMarker)},_onScale:function(t){var i=this._originMarker._point;var a,n;if(this.options.uniformScaling){a=i.distanceTo(t.layerPoint)/this._initialDist;n=a}else{a=(i.x-t.layerPoint.x)/this._initialDistX;n=(i.y-t.layerPoint.y)/this._initialDistY}this._scale=new L.Point(a,n);this._matrix=this._initialMatrix.clone().scale(this._scale,i);this._update();this._path.fire("scale",{layer:this._path,scale:this._scale.clone()})},_onScaleEnd:function(t){this._map.off("mousemove",this._onScale,this).off("mouseup",this._onScaleEnd,this);this._map.addLayer(this._handleLine);this._map.addLayer(this._rotationMarker);this._apply();this._path.fire("scaleend",{layer:this._path,scale:this._scale.clone()})},_cachePoints:function(){this._handlersGroup.eachLayer(function(t){t.bringToFront()});for(var t=0,i=this._handlers.length;tOSM contributors' -}).addTo(map); - -//////////////////////////////////////////////////////////////////////////////// -function interpolateArr(array, insert) { - var res = []; - array.forEach(function(p, i, arr) { - res.push(p.concat()); - - if (i < arr.length - 1) { - var diff = [arr[i + 1][0] - p[0], arr[i + 1][1] - p[1]]; - for (var i = 1; i < insert; i++) { - res.push([p[0] + (diff[0] * i) / insert, p[1] + (diff[1] * i) / insert]); - } - } - }); - - return res; -} - -//////////////////////////////////////////////////////////////////////////////// -var polygon = global.polygon = new L.Polygon( - L.GeoJSON.coordsToLatLngs( - - // ~ 13 000 points - interpolateArr([ - [113.97697448730469, 22.403410892712124], - [113.98658752441405, 22.38373008592495], - [114.01268005371094, 22.369126397545887], - [114.02778625488281, 22.38563480185718], - [114.04701232910156, 22.395157990290755], - [114.06005859375, 22.413567638369805], - [114.06280517578125, 22.432609534876796], - [114.04838562011717, 22.444668051657157], - [114.04289245605469, 22.44847578656544], - [114.03259277343749, 22.444668051657157], - [114.01954650878906, 22.447206553211814], - [113.99620056152344, 22.436417600763114], - [113.98178100585938, 22.420549970290875], - [113.97697448730469, 22.403410892712124] - ], 1000) - ), { - color: '#f00', - interactive: true, - draggable: true, - transform: true - }).addTo(map); -//polygon.transform.enable(); - -var polyline = global.polyline = new L.Polyline( - L.GeoJSON.coordsToLatLngs([ - [114.14314270019531, 22.49479484975443], - [114.1534423828125, 22.485912942320958], - [114.15206909179688, 22.4732235144781], - [114.14932250976561, 22.459898363943893], - [114.15962219238281, 22.447206553211814], - [114.169921875, 22.447206553211814], - [114.19395446777344, 22.459898363943893], - [114.20631408691406, 22.46116748110935], - [114.21180725097655, 22.473858013487614], - [114.22416687011719, 22.471320000009992], - [114.23721313476562, 22.476395980457973], - [114.24201965332031, 22.49352604073722], - [114.2303466796875, 22.51572851830351], - [114.21798706054688, 22.524608511026262], - [114.20768737792969, 22.524608511026262], - [114.20768737792969, 22.536024805886974] - ]), { - weight: 15, - draggable: true, - transform: true - }) - .bindPopup("L.Polyline") - .addTo(map); -// polyline.transform.enable(); - - -var polygonWithHole = global.polygonWithHole = new L.Polygon( - [ - L.GeoJSON.coordsToLatLngs([ - [114.2749786376953, 22.412932863517717], - [114.28390502929688, 22.40087159030595], - [114.29008483886717, 22.38880927045556], - [114.30107116699219, 22.382460260815716], - [114.31892395019531, 22.391983666602783], - [114.32304382324219, 22.380555501421533], - [114.34295654296875, 22.372936203113838], - [114.334716796875, 22.384364994133303], - [114.33059692382812, 22.393888269511194], - [114.32167053222655, 22.40087159030595], - [114.32785034179688, 22.413567638369805], - [114.33197021484375, 22.42499308964722], - [114.32579040527344, 22.430705462748918], - [114.33197021484375, 22.43959090917266], - [114.33746337890624, 22.449110398886106], - [114.33540344238281, 22.461802035333992], - [114.32510375976562, 22.464340223177118], - [114.32922363281249, 22.472589012561954], - [114.32373046875, 22.477030464933307], - [114.31961059570312, 22.478933900916928], - [114.3017578125, 22.466243833549445], - [114.30244445800781, 22.457360094750083], - [114.29283142089844, 22.454821779075832], - [114.28390502929688, 22.45101421842269], - [114.2749786376953, 22.442764145001707], - [114.29077148437499, 22.428166659279615], - [114.27703857421875, 22.420549970290875], - [114.2749786376953, 22.412932863517717] - ]), - L.GeoJSON.coordsToLatLngs([ - [114.30107116699219, 22.43387890178297], - [114.29351806640625, 22.414202410321302], - [114.30587768554686, 22.408489358342635], - [114.32235717773438, 22.421184710331858], - [114.30107116699219, 22.43387890178297] - ]) - ], { - draggable: true, - transform: true - } - ) - .addTo(map); -//polygonWithHole.transform.enable(); - -var multiPolygon = global.multiPolygon = new L.Polygon([ - L.GeoJSON.coordsToLatLngs([ - [114.20562744140625, 22.32085984100593], - [114.21592712402344, 22.35261603551215], - [114.26467895507812, 22.351345926606957], - [114.2749786376953, 22.32403578584038], - [114.29214477539062, 22.32721165838893], - [114.3017578125, 22.311966810977616], - [114.29420471191406, 22.291002427735325], - [114.29351806640625, 22.272576585413475], - [114.28390502929688, 22.26177410097435], - [114.268798828125, 22.281472122783818], - [114.2749786376953, 22.294814367780518], - [114.26948547363281, 22.30243793590448], - [114.27017211914062, 22.31514295816939], - [114.2578125, 22.311966810977616], - [114.24751281738281, 22.299896792751927], - [114.24545288085938, 22.291002427735325], - [114.22966003417969, 22.307520083522476], - [114.22073364257812, 22.305614299837046], - [114.20562744140625, 22.32085984100593] - ]), - L.GeoJSON.coordsToLatLngs([ - [114.31549072265625, 22.33927931468312], - [114.32029724121094, 22.326576489662482], - [114.32991027832031, 22.326576489662482], - [114.33334350585938, 22.332292904091716], - [114.32304382324219, 22.3424548401465], - [114.31549072265625, 22.33927931468312] - ]), - L.GeoJSON.coordsToLatLngs([ - [114.27909851074219, 22.244615500323064], - [114.28115844726562, 22.251606295132948], - [114.28665161132812, 22.255419308858556], - [114.29969787597656, 22.26113863474449], - [114.2962646484375, 22.250970782750866], - [114.29489135742188, 22.24080219246335], - [114.29008483886717, 22.238895499613232], - [114.27909851074219, 22.244615500323064] - ]) -], { - draggable: true, - transform: true, - color: '#092' -}).bindPopup('MultiPolygon').addTo(map); -//multiPolygon.transform.enable(); - -var multiPolyline = global.multiPolyline = new L.Polyline([ - L.GeoJSON.coordsToLatLngs([ - [113.89869689941406, 22.399601921706953], - [113.89801025390625, 22.422454181709707], - [113.90350341796875, 22.43324421978117], - [113.90968322753906, 22.449110398886106], - [113.90693664550781, 22.478299425162852], - [113.9234161376953, 22.488450688325408], - [113.9337158203125, 22.483375149789623], - [113.9447021484375, 22.492257220085193], - [113.95225524902344, 22.51255695405145] - ]), - - L.GeoJSON.coordsToLatLngs([ - [113.8677978515625, 22.39261853713738], - [113.86917114257811, 22.42753195115699], - [113.9234161376953, 22.462436586653148], - [113.94813537597656, 22.473858013487614], - [113.9783477783203, 22.49923558968306], - [113.99688720703125, 22.51192263246886], - [114.01336669921875, 22.501138720300254], - [114.02503967285155, 22.508116641853675] - ]) -], { - draggable: true, - transform: true, - color: '#e90' -}).bindPopup('MultiPolyline').addTo(map); -// multiPolyline.transform.enable(); - -var layers = [polygon, polyline, multiPolyline, multiPolygon, polygonWithHole]; - -function update() { - L.Util.requestAnimFrame(function() { - var dragging = document.querySelector('#dragging').checked; - var scaling = document.querySelector('#scaling').checked; - var rotation = document.querySelector('#rotation').checked; - var uniform = document.querySelector('#uniform').checked; - - layers.forEach(function(layer) { - - if (layer.dragging) { - layer.dragging[dragging ? 'enable': 'disable'](); - } else { - layer.eachLayer(function(sublayer) { - sublayer.dragging[dragging ? 'enable': 'disable'](); - }); - } - - - layer.transform.setOptions({ - scaling: scaling, - rotation: rotation, - uniformScaling: uniform - }).enable(); - }); - }); -} - -[].slice.call(document.querySelectorAll('input[type=checkbox]')) -.forEach(function(checkbox) { - L.DomEvent.on(checkbox, 'change', update); -}); - -update(); +var L = require('leaflet'); +var DragHandler = require('../../index'); + +L.Icon.Default.imagePath = "http://cdn.leafletjs.com/leaflet-0.7/images"; + +//////////////////////////////////////////////////////////////////////////////// +var map = global.map = new L.Map('map', { + // crs: L.CRS.EPSG4326 // that was tested as well +}).setView([22.42658, 114.1952], 11); + +L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', { + attribution: '© ' + + 'OSM contributors' +}).addTo(map); + +//////////////////////////////////////////////////////////////////////////////// +function interpolateArr(array, insert) { + var res = []; + array.forEach(function(p, i, arr) { + res.push(p.concat()); + + if (i < arr.length - 1) { + var diff = [arr[i + 1][0] - p[0], arr[i + 1][1] - p[1]]; + for (var i = 1; i < insert; i++) { + res.push([p[0] + (diff[0] * i) / insert, p[1] + (diff[1] * i) / insert]); + } + } + }); + + return res; +} + +//////////////////////////////////////////////////////////////////////////////// +var polygon = global.polygon = new L.Polygon( + L.GeoJSON.coordsToLatLngs( + + // ~ 13 000 points + interpolateArr([ + [113.97697448730469, 22.403410892712124], + [113.98658752441405, 22.38373008592495], + [114.01268005371094, 22.369126397545887], + [114.02778625488281, 22.38563480185718], + [114.04701232910156, 22.395157990290755], + [114.06005859375, 22.413567638369805], + [114.06280517578125, 22.432609534876796], + [114.04838562011717, 22.444668051657157], + [114.04289245605469, 22.44847578656544], + [114.03259277343749, 22.444668051657157], + [114.01954650878906, 22.447206553211814], + [113.99620056152344, 22.436417600763114], + [113.98178100585938, 22.420549970290875], + [113.97697448730469, 22.403410892712124] + ], 1000) + ), { + color: '#f00', + interactive: true, + draggable: true, + transform: true + }).addTo(map); +//polygon.transform.enable(); + +var polyline = global.polyline = new L.Polyline( + L.GeoJSON.coordsToLatLngs([ + [114.14314270019531, 22.49479484975443], + [114.1534423828125, 22.485912942320958], + [114.15206909179688, 22.4732235144781], + [114.14932250976561, 22.459898363943893], + [114.15962219238281, 22.447206553211814], + [114.169921875, 22.447206553211814], + [114.19395446777344, 22.459898363943893], + [114.20631408691406, 22.46116748110935], + [114.21180725097655, 22.473858013487614], + [114.22416687011719, 22.471320000009992], + [114.23721313476562, 22.476395980457973], + [114.24201965332031, 22.49352604073722], + [114.2303466796875, 22.51572851830351], + [114.21798706054688, 22.524608511026262], + [114.20768737792969, 22.524608511026262], + [114.20768737792969, 22.536024805886974] + ]), { + weight: 15, + draggable: true, + transform: true + }) + .bindPopup("L.Polyline") + .addTo(map); +// polyline.transform.enable(); + +var rectangle = global.rectangle = new L.Rectangle(L.latLngBounds([ + [22.334833457530486, 114.0154266357422], + [22.244615500323064, 114.14108276367189] +]), { + weight: 2, + draggable: true, + transform: true + }) + .bindPopup("L.Rectangle") + .addTo(map); + +var polygonWithHole = global.polygonWithHole = new L.Polygon( + [ + L.GeoJSON.coordsToLatLngs([ + [114.2749786376953, 22.412932863517717], + [114.28390502929688, 22.40087159030595], + [114.29008483886717, 22.38880927045556], + [114.30107116699219, 22.382460260815716], + [114.31892395019531, 22.391983666602783], + [114.32304382324219, 22.380555501421533], + [114.34295654296875, 22.372936203113838], + [114.334716796875, 22.384364994133303], + [114.33059692382812, 22.393888269511194], + [114.32167053222655, 22.40087159030595], + [114.32785034179688, 22.413567638369805], + [114.33197021484375, 22.42499308964722], + [114.32579040527344, 22.430705462748918], + [114.33197021484375, 22.43959090917266], + [114.33746337890624, 22.449110398886106], + [114.33540344238281, 22.461802035333992], + [114.32510375976562, 22.464340223177118], + [114.32922363281249, 22.472589012561954], + [114.32373046875, 22.477030464933307], + [114.31961059570312, 22.478933900916928], + [114.3017578125, 22.466243833549445], + [114.30244445800781, 22.457360094750083], + [114.29283142089844, 22.454821779075832], + [114.28390502929688, 22.45101421842269], + [114.2749786376953, 22.442764145001707], + [114.29077148437499, 22.428166659279615], + [114.27703857421875, 22.420549970290875], + [114.2749786376953, 22.412932863517717] + ]), + L.GeoJSON.coordsToLatLngs([ + [114.30107116699219, 22.43387890178297], + [114.29351806640625, 22.414202410321302], + [114.30587768554686, 22.408489358342635], + [114.32235717773438, 22.421184710331858], + [114.30107116699219, 22.43387890178297] + ]) + ], { + draggable: true, + transform: true + } + ) + .addTo(map); +//polygonWithHole.transform.enable(); + +var multiPolygon = global.multiPolygon = new L.Polygon([ + L.GeoJSON.coordsToLatLngs([ + [114.20562744140625, 22.32085984100593], + [114.21592712402344, 22.35261603551215], + [114.26467895507812, 22.351345926606957], + [114.2749786376953, 22.32403578584038], + [114.29214477539062, 22.32721165838893], + [114.3017578125, 22.311966810977616], + [114.29420471191406, 22.291002427735325], + [114.29351806640625, 22.272576585413475], + [114.28390502929688, 22.26177410097435], + [114.268798828125, 22.281472122783818], + [114.2749786376953, 22.294814367780518], + [114.26948547363281, 22.30243793590448], + [114.27017211914062, 22.31514295816939], + [114.2578125, 22.311966810977616], + [114.24751281738281, 22.299896792751927], + [114.24545288085938, 22.291002427735325], + [114.22966003417969, 22.307520083522476], + [114.22073364257812, 22.305614299837046], + [114.20562744140625, 22.32085984100593] + ]), + L.GeoJSON.coordsToLatLngs([ + [114.31549072265625, 22.33927931468312], + [114.32029724121094, 22.326576489662482], + [114.32991027832031, 22.326576489662482], + [114.33334350585938, 22.332292904091716], + [114.32304382324219, 22.3424548401465], + [114.31549072265625, 22.33927931468312] + ]), + L.GeoJSON.coordsToLatLngs([ + [114.27909851074219, 22.244615500323064], + [114.28115844726562, 22.251606295132948], + [114.28665161132812, 22.255419308858556], + [114.29969787597656, 22.26113863474449], + [114.2962646484375, 22.250970782750866], + [114.29489135742188, 22.24080219246335], + [114.29008483886717, 22.238895499613232], + [114.27909851074219, 22.244615500323064] + ]) +], { + draggable: true, + transform: true, + color: '#092' +}).bindPopup('MultiPolygon').addTo(map); +//multiPolygon.transform.enable(); + +var multiPolyline = global.multiPolyline = new L.Polyline([ + L.GeoJSON.coordsToLatLngs([ + [113.89869689941406, 22.399601921706953], + [113.89801025390625, 22.422454181709707], + [113.90350341796875, 22.43324421978117], + [113.90968322753906, 22.449110398886106], + [113.90693664550781, 22.478299425162852], + [113.9234161376953, 22.488450688325408], + [113.9337158203125, 22.483375149789623], + [113.9447021484375, 22.492257220085193], + [113.95225524902344, 22.51255695405145] + ]), + + L.GeoJSON.coordsToLatLngs([ + [113.8677978515625, 22.39261853713738], + [113.86917114257811, 22.42753195115699], + [113.9234161376953, 22.462436586653148], + [113.94813537597656, 22.473858013487614], + [113.9783477783203, 22.49923558968306], + [113.99688720703125, 22.51192263246886], + [114.01336669921875, 22.501138720300254], + [114.02503967285155, 22.508116641853675] + ]) +], { + draggable: true, + transform: true, + color: '#e90' +}).bindPopup('MultiPolyline').addTo(map); +// multiPolyline.transform.enable(); + +var layers = [polygon, polyline, rectangle, multiPolyline, multiPolygon, polygonWithHole]; + +function update() { + L.Util.requestAnimFrame(function() { + var dragging = document.querySelector('#dragging').checked; + var scaling = document.querySelector('#scaling').checked; + var rotation = document.querySelector('#rotation').checked; + var uniform = document.querySelector('#uniform').checked; + + layers.forEach(function(layer) { + + if (layer.dragging) { + layer.dragging[dragging ? 'enable': 'disable'](); + } else { + layer.eachLayer(function(sublayer) { + sublayer.dragging[dragging ? 'enable': 'disable'](); + }); + } + + + layer.transform.setOptions({ + scaling: scaling, + rotation: rotation, + uniformScaling: uniform + }).enable(); + }); + }); +} + +[].slice.call(document.querySelectorAll('input[type=checkbox]')) +.forEach(function(checkbox) { + L.DomEvent.on(checkbox, 'change', update); +}); + +update(); }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"../../index":2,"leaflet":9}],2:[function(require,module,exports){ -var L = require('leaflet'); -require('leaflet-path-drag'); -require('./src/Util'); -require('./src/Matrix'); -require('./src/Path.Transform'); +var L = require('leaflet'); +require('leaflet-path-drag'); +require('./src/Util'); +require('./src/Matrix'); +require('./src/Path.Transform'); },{"./src/Matrix":10,"./src/Path.Transform":11,"./src/Util":12,"leaflet":9,"leaflet-path-drag":3}],3:[function(require,module,exports){ require('./src/SVG'); @@ -268,9 +278,7 @@ require('./src/Path.Drag'); module.exports = L.Path.Drag; },{"./src/Canvas":4,"./src/Path.Drag":5,"./src/Path.Transform":6,"./src/SVG":8,"./src/SVG.VML":7}],4:[function(require,module,exports){ -L.Util.trueFn = function() { - return true; -}; +function TRUE_FN () { return true; } L.Canvas.include({ @@ -332,7 +340,7 @@ L.Canvas.include({ // avoid flickering because of the 'mouseover's layer._containsPoint_ = layer._containsPoint; - layer._containsPoint = L.Util.trueFn; + layer._containsPoint = TRUE_FN; } ctx.save(); @@ -355,6 +363,25 @@ L.Canvas.include({ }); },{}],5:[function(require,module,exports){ +var END = { + mousedown: 'mouseup', + touchstart: 'touchend', + pointerdown: 'touchend', + MSPointerDown: 'touchend' +}; + +var MOVE = { + mousedown: 'mousemove', + touchstart: 'touchmove', + pointerdown: 'touchmove', + MSPointerDown: 'touchmove' +}; + +function distance(a, b) { + var dx = a.x - b.x, dy = a.y - b.y; + return Math.sqrt(dx * dx + dy * dy); +} + /** * Drag handler * @class L.Path.Drag @@ -450,8 +477,8 @@ L.Handler.PathDrag = L.Handler.extend( /** @lends L.Path.Drag.prototype */ { L.DomUtil.addClass(this._path._renderer._container, 'leaflet-interactive'); L.DomEvent - .on(document, L.Draggable.MOVE[eventType], this._onDrag, this) - .on(document, L.Draggable.END[eventType], this._onDragEnd, this); + .on(document, MOVE[eventType], this._onDrag, this) + .on(document, END[eventType], this._onDragEnd, this); if (this._path._map.dragging.enabled()) { // I guess it's required because mousdown gets simulated with a delay @@ -533,25 +560,22 @@ L.Handler.PathDrag = L.Handler.extend( /** @lends L.Path.Drag.prototype */ { } - L.DomEvent - .off(document, 'mousemove touchmove', this._onDrag, this) - .off(document, 'mouseup touchend', this._onDragEnd, this); + L.DomEvent.off(document, 'mousemove touchmove', this._onDrag, this); + L.DomEvent.off(document, 'mouseup touchend', this._onDragEnd, this); this._restoreCoordGetters(); // consistency if (moved) { this._path.fire('dragend', { - distance: Math.sqrt( - L.LineUtil._sqDist(this._dragStartPoint, containerPoint) - ) + distance: distance(this._dragStartPoint, containerPoint) }); // hack for skipping the click in canvas-rendered layers var contains = this._path._containsPoint; this._path._containsPoint = L.Util.falseFn; L.Util.requestAnimFrame(function() { - L.DomEvent._skipped({ type: 'click' }); + L.DomEvent.skipped({ type: 'click' }); this._path._containsPoint = contains; }, this); } @@ -562,7 +586,7 @@ L.Handler.PathDrag = L.Handler.extend( /** @lends L.Path.Drag.prototype */ { this._path._dragMoved = false; if (this._mapDraggingWasEnabled) { - if (moved) L.DomEvent._fakeStop({ type: 'click' }); + if (moved) L.DomEvent.fakeStop({ type: 'click' }); this._path._map.dragging.enable(); } }, @@ -830,40 +854,16 @@ L.SVG.include({ },{}],9:[function(require,module,exports){ /* - Leaflet 1.0.3, a JS library for interactive maps. http://leafletjs.com - (c) 2010-2016 Vladimir Agafonkin, (c) 2010-2011 CloudMade -*/ -(function (window, document, undefined) { -var L = { - version: "1.0.3" -}; - -function expose() { - var oldL = window.L; - - L.noConflict = function () { - window.L = oldL; - return this; - }; - - window.L = L; -} - -// define Leaflet for Node module pattern loaders, including Browserify -if (typeof module === 'object' && typeof module.exports === 'object') { - module.exports = L; - -// define Leaflet as an AMD module -} else if (typeof define === 'function' && define.amd) { - define(L); -} - -// define Leaflet as a global L variable, saving the original L to restore later if needed -if (typeof window !== 'undefined') { - expose(); -} - + * Leaflet 1.1.0, a JS library for interactive maps. http://leafletjs.com + * (c) 2010-2017 Vladimir Agafonkin, (c) 2010-2011 CloudMade + */ +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : + typeof define === 'function' && define.amd ? define(['exports'], factory) : + (factory((global.L = global.L || {}))); +}(this, (function (exports) { 'use strict'; +var version = "1.1.0"; /* * @namespace Util @@ -871,254 +871,264 @@ if (typeof window !== 'undefined') { * Various utility functions, used by Leaflet internally. */ -L.Util = { - - // @function extend(dest: Object, src?: Object): Object - // Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut. - extend: function (dest) { - var i, j, len, src; +// @function extend(dest: Object, src?: Object): Object +// Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut. +function extend(dest) { + var i, j, len, src; - for (j = 1, len = arguments.length; j < len; j++) { - src = arguments[j]; - for (i in src) { - dest[i] = src[i]; - } + for (j = 1, len = arguments.length; j < len; j++) { + src = arguments[j]; + for (i in src) { + dest[i] = src[i]; } - return dest; - }, - - // @function create(proto: Object, properties?: Object): Object - // Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create) - create: Object.create || (function () { - function F() {} - return function (proto) { - F.prototype = proto; - return new F(); - }; - })(), + } + return dest; +} - // @function bind(fn: Function, …): Function - // Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind). - // Has a `L.bind()` shortcut. - bind: function (fn, obj) { - var slice = Array.prototype.slice; +// @function create(proto: Object, properties?: Object): Object +// Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create) +var create = Object.create || (function () { + function F() {} + return function (proto) { + F.prototype = proto; + return new F(); + }; +})(); - if (fn.bind) { - return fn.bind.apply(fn, slice.call(arguments, 1)); - } +// @function bind(fn: Function, …): Function +// Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind). +// Has a `L.bind()` shortcut. +function bind(fn, obj) { + var slice = Array.prototype.slice; - var args = slice.call(arguments, 2); + if (fn.bind) { + return fn.bind.apply(fn, slice.call(arguments, 1)); + } - return function () { - return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments); - }; - }, + var args = slice.call(arguments, 2); - // @function stamp(obj: Object): Number - // Returns the unique ID of an object, assiging it one if it doesn't have it. - stamp: function (obj) { - /*eslint-disable */ - obj._leaflet_id = obj._leaflet_id || ++L.Util.lastId; - return obj._leaflet_id; - /*eslint-enable */ - }, - - // @property lastId: Number - // Last unique ID used by [`stamp()`](#util-stamp) - lastId: 0, - - // @function throttle(fn: Function, time: Number, context: Object): Function - // Returns a function which executes function `fn` with the given scope `context` - // (so that the `this` keyword refers to `context` inside `fn`'s code). The function - // `fn` will be called no more than one time per given amount of `time`. The arguments - // received by the bound function will be any arguments passed when binding the - // function, followed by any arguments passed when invoking the bound function. - // Has an `L.bind` shortcut. - throttle: function (fn, time, context) { - var lock, args, wrapperFn, later; - - later = function () { - // reset lock and call if queued - lock = false; - if (args) { - wrapperFn.apply(context, args); - args = false; - } - }; + return function () { + return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments); + }; +} - wrapperFn = function () { - if (lock) { - // called too soon, queue to call later - args = arguments; +// @property lastId: Number +// Last unique ID used by [`stamp()`](#util-stamp) +var lastId = 0; + +// @function stamp(obj: Object): Number +// Returns the unique ID of an object, assiging it one if it doesn't have it. +function stamp(obj) { + /*eslint-disable */ + obj._leaflet_id = obj._leaflet_id || ++lastId; + return obj._leaflet_id; + /*eslint-enable */ +} - } else { - // call and lock until later - fn.apply(context, arguments); - setTimeout(later, time); - lock = true; - } - }; +// @function throttle(fn: Function, time: Number, context: Object): Function +// Returns a function which executes function `fn` with the given scope `context` +// (so that the `this` keyword refers to `context` inside `fn`'s code). The function +// `fn` will be called no more than one time per given amount of `time`. The arguments +// received by the bound function will be any arguments passed when binding the +// function, followed by any arguments passed when invoking the bound function. +// Has an `L.throttle` shortcut. +function throttle(fn, time, context) { + var lock, args, wrapperFn, later; + + later = function () { + // reset lock and call if queued + lock = false; + if (args) { + wrapperFn.apply(context, args); + args = false; + } + }; - return wrapperFn; - }, + wrapperFn = function () { + if (lock) { + // called too soon, queue to call later + args = arguments; - // @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number - // Returns the number `num` modulo `range` in such a way so it lies within - // `range[0]` and `range[1]`. The returned value will be always smaller than - // `range[1]` unless `includeMax` is set to `true`. - wrapNum: function (x, range, includeMax) { - var max = range[1], - min = range[0], - d = max - min; - return x === max && includeMax ? x : ((x - min) % d + d) % d + min; - }, + } else { + // call and lock until later + fn.apply(context, arguments); + setTimeout(later, time); + lock = true; + } + }; - // @function falseFn(): Function - // Returns a function which always returns `false`. - falseFn: function () { return false; }, + return wrapperFn; +} - // @function formatNum(num: Number, digits?: Number): Number - // Returns the number `num` rounded to `digits` decimals, or to 5 decimals by default. - formatNum: function (num, digits) { - var pow = Math.pow(10, digits || 5); - return Math.round(num * pow) / pow; - }, +// @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number +// Returns the number `num` modulo `range` in such a way so it lies within +// `range[0]` and `range[1]`. The returned value will be always smaller than +// `range[1]` unless `includeMax` is set to `true`. +function wrapNum(x, range, includeMax) { + var max = range[1], + min = range[0], + d = max - min; + return x === max && includeMax ? x : ((x - min) % d + d) % d + min; +} - // @function trim(str: String): String - // Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim) - trim: function (str) { - return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, ''); - }, +// @function falseFn(): Function +// Returns a function which always returns `false`. +function falseFn() { return false; } - // @function splitWords(str: String): String[] - // Trims and splits the string on whitespace and returns the array of parts. - splitWords: function (str) { - return L.Util.trim(str).split(/\s+/); - }, +// @function formatNum(num: Number, digits?: Number): Number +// Returns the number `num` rounded to `digits` decimals, or to 5 decimals by default. +function formatNum(num, digits) { + var pow = Math.pow(10, digits || 5); + return Math.round(num * pow) / pow; +} - // @function setOptions(obj: Object, options: Object): Object - // Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut. - setOptions: function (obj, options) { - if (!obj.hasOwnProperty('options')) { - obj.options = obj.options ? L.Util.create(obj.options) : {}; - } - for (var i in options) { - obj.options[i] = options[i]; - } - return obj.options; - }, +// @function trim(str: String): String +// Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim) +function trim(str) { + return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, ''); +} - // @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String - // Converts an object into a parameter URL string, e.g. `{a: "foo", b: "bar"}` - // translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will - // be appended at the end. If `uppercase` is `true`, the parameter names will - // be uppercased (e.g. `'?A=foo&B=bar'`) - getParamString: function (obj, existingUrl, uppercase) { - var params = []; - for (var i in obj) { - params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i])); - } - return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&'); - }, +// @function splitWords(str: String): String[] +// Trims and splits the string on whitespace and returns the array of parts. +function splitWords(str) { + return trim(str).split(/\s+/); +} - // @function template(str: String, data: Object): String - // Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'` - // and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string - // `('Hello foo, bar')`. You can also specify functions instead of strings for - // data values — they will be evaluated passing `data` as an argument. - template: function (str, data) { - return str.replace(L.Util.templateRe, function (str, key) { - var value = data[key]; +// @function setOptions(obj: Object, options: Object): Object +// Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut. +function setOptions(obj, options) { + if (!obj.hasOwnProperty('options')) { + obj.options = obj.options ? create(obj.options) : {}; + } + for (var i in options) { + obj.options[i] = options[i]; + } + return obj.options; +} - if (value === undefined) { - throw new Error('No value provided for variable ' + str); +// @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String +// Converts an object into a parameter URL string, e.g. `{a: "foo", b: "bar"}` +// translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will +// be appended at the end. If `uppercase` is `true`, the parameter names will +// be uppercased (e.g. `'?A=foo&B=bar'`) +function getParamString(obj, existingUrl, uppercase) { + var params = []; + for (var i in obj) { + params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i])); + } + return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&'); +} - } else if (typeof value === 'function') { - value = value(data); - } - return value; - }); - }, +var templateRe = /\{ *([\w_\-]+) *\}/g; - templateRe: /\{ *([\w_\-]+) *\}/g, +// @function template(str: String, data: Object): String +// Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'` +// and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string +// `('Hello foo, bar')`. You can also specify functions instead of strings for +// data values — they will be evaluated passing `data` as an argument. +function template(str, data) { + return str.replace(templateRe, function (str, key) { + var value = data[key]; - // @function isArray(obj): Boolean - // Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray) - isArray: Array.isArray || function (obj) { - return (Object.prototype.toString.call(obj) === '[object Array]'); - }, + if (value === undefined) { + throw new Error('No value provided for variable ' + str); - // @function indexOf(array: Array, el: Object): Number - // Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf) - indexOf: function (array, el) { - for (var i = 0; i < array.length; i++) { - if (array[i] === el) { return i; } + } else if (typeof value === 'function') { + value = value(data); } - return -1; - }, + return value; + }); +} - // @property emptyImageUrl: String - // Data URI string containing a base64-encoded empty GIF image. - // Used as a hack to free memory from unused images on WebKit-powered - // mobile devices (by setting image `src` to this string). - emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=' +// @function isArray(obj): Boolean +// Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray) +var isArray = Array.isArray || function (obj) { + return (Object.prototype.toString.call(obj) === '[object Array]'); }; -(function () { - // inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/ - - function getPrefixed(name) { - return window['webkit' + name] || window['moz' + name] || window['ms' + name]; +// @function indexOf(array: Array, el: Object): Number +// Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf) +function indexOf(array, el) { + for (var i = 0; i < array.length; i++) { + if (array[i] === el) { return i; } } + return -1; +} - var lastTime = 0; +// @property emptyImageUrl: String +// Data URI string containing a base64-encoded empty GIF image. +// Used as a hack to free memory from unused images on WebKit-powered +// mobile devices (by setting image `src` to this string). +var emptyImageUrl = 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='; - // fallback for IE 7-8 - function timeoutDefer(fn) { - var time = +new Date(), - timeToCall = Math.max(0, 16 - (time - lastTime)); +// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/ - lastTime = time + timeToCall; - return window.setTimeout(fn, timeToCall); - } +function getPrefixed(name) { + return window['webkit' + name] || window['moz' + name] || window['ms' + name]; +} - var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer, - cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') || - getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); }; +var lastTime = 0; +// fallback for IE 7-8 +function timeoutDefer(fn) { + var time = +new Date(), + timeToCall = Math.max(0, 16 - (time - lastTime)); - // @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number - // Schedules `fn` to be executed when the browser repaints. `fn` is bound to - // `context` if given. When `immediate` is set, `fn` is called immediately if - // the browser doesn't have native support for - // [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame), - // otherwise it's delayed. Returns a request ID that can be used to cancel the request. - L.Util.requestAnimFrame = function (fn, context, immediate) { - if (immediate && requestFn === timeoutDefer) { - fn.call(context); - } else { - return requestFn.call(window, L.bind(fn, context)); - } - }; + lastTime = time + timeToCall; + return window.setTimeout(fn, timeToCall); +} - // @function cancelAnimFrame(id: Number): undefined - // Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame). - L.Util.cancelAnimFrame = function (id) { - if (id) { - cancelFn.call(window, id); - } - }; -})(); +var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer; +var cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') || + getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); }; + +// @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number +// Schedules `fn` to be executed when the browser repaints. `fn` is bound to +// `context` if given. When `immediate` is set, `fn` is called immediately if +// the browser doesn't have native support for +// [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame), +// otherwise it's delayed. Returns a request ID that can be used to cancel the request. +function requestAnimFrame(fn, context, immediate) { + if (immediate && requestFn === timeoutDefer) { + fn.call(context); + } else { + return requestFn.call(window, bind(fn, context)); + } +} -// shortcuts for most used utility functions -L.extend = L.Util.extend; -L.bind = L.Util.bind; -L.stamp = L.Util.stamp; -L.setOptions = L.Util.setOptions; +// @function cancelAnimFrame(id: Number): undefined +// Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame). +function cancelAnimFrame(id) { + if (id) { + cancelFn.call(window, id); + } +} +var Util = (Object.freeze || Object)({ + extend: extend, + create: create, + bind: bind, + lastId: lastId, + stamp: stamp, + throttle: throttle, + wrapNum: wrapNum, + falseFn: falseFn, + formatNum: formatNum, + trim: trim, + splitWords: splitWords, + setOptions: setOptions, + getParamString: getParamString, + template: template, + isArray: isArray, + indexOf: indexOf, + emptyImageUrl: emptyImageUrl, + requestFn: requestFn, + cancelFn: cancelFn, + requestAnimFrame: requestAnimFrame, + cancelAnimFrame: cancelAnimFrame +}); - // @class Class // @aka L.Class @@ -1127,9 +1137,9 @@ L.setOptions = L.Util.setOptions; // Thanks to John Resig and Dean Edwards for inspiration! -L.Class = function () {}; +function Class() {} -L.Class.extend = function (props) { +Class.extend = function (props) { // @function extend(props: Object): Function // [Extends the current class](#class-inheritance) given the properties to be included. @@ -1147,37 +1157,38 @@ L.Class.extend = function (props) { var parentProto = NewClass.__super__ = this.prototype; - var proto = L.Util.create(parentProto); + var proto = create(parentProto); proto.constructor = NewClass; NewClass.prototype = proto; // inherit parent's statics for (var i in this) { - if (this.hasOwnProperty(i) && i !== 'prototype') { + if (this.hasOwnProperty(i) && i !== 'prototype' && i !== '__super__') { NewClass[i] = this[i]; } } // mix static properties into the class if (props.statics) { - L.extend(NewClass, props.statics); + extend(NewClass, props.statics); delete props.statics; } // mix includes into the prototype if (props.includes) { - L.Util.extend.apply(null, [proto].concat(props.includes)); + checkDeprecatedMixinEvents(props.includes); + extend.apply(null, [proto].concat(props.includes)); delete props.includes; } // merge options if (proto.options) { - props.options = L.Util.extend(L.Util.create(proto.options), props.options); + props.options = extend(create(proto.options), props.options); } // mix given properties into the prototype - L.extend(proto, props); + extend(proto, props); proto._initHooks = []; @@ -1203,21 +1214,21 @@ L.Class.extend = function (props) { // @function include(properties: Object): this // [Includes a mixin](#class-includes) into the current class. -L.Class.include = function (props) { - L.extend(this.prototype, props); +Class.include = function (props) { + extend(this.prototype, props); return this; }; // @function mergeOptions(options: Object): this // [Merges `options`](#class-options) into the defaults of the class. -L.Class.mergeOptions = function (options) { - L.extend(this.prototype.options, options); +Class.mergeOptions = function (options) { + extend(this.prototype.options, options); return this; }; // @function addInitHook(fn: Function): this // Adds a [constructor hook](#class-constructor-hooks) to the class. -L.Class.addInitHook = function (fn) { // (Function) || (String, args...) +Class.addInitHook = function (fn) { // (Function) || (String, args...) var args = Array.prototype.slice.call(arguments, 1); var init = typeof fn === 'function' ? fn : function () { @@ -1228,8 +1239,20 @@ L.Class.addInitHook = function (fn) { // (Function) || (String, args...) this.prototype._initHooks.push(init); return this; }; - - + +function checkDeprecatedMixinEvents(includes) { + if (!L || !L.Mixin) { return; } + + includes = isArray(includes) ? includes : [includes]; + + for (var i = 0; i < includes.length; i++) { + if (includes[i] === L.Mixin.Events) { + console.warn('Deprecated include of L.Mixin.Events: ' + + 'this property will be removed in future releases, ' + + 'please inherit from L.Evented instead.', new Error().stack); + } + } +} /* * @class Evented @@ -1256,9 +1279,7 @@ L.Class.addInitHook = function (fn) { // (Function) || (String, args...) * ``` */ - -L.Evented = L.Class.extend({ - +var Events = { /* @method on(type: String, fn: Function, context?: Object): this * Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`). * @@ -1278,7 +1299,7 @@ L.Evented = L.Class.extend({ } else { // types can be a string of space-separated words - types = L.Util.splitWords(types); + types = splitWords(types); for (var i = 0, len = types.length; i < len; i++) { this._on(types[i], fn, context); @@ -1311,7 +1332,7 @@ L.Evented = L.Class.extend({ } } else { - types = L.Util.splitWords(types); + types = splitWords(types); for (var i = 0, len = types.length; i < len; i++) { this._off(types[i], fn, context); @@ -1365,7 +1386,7 @@ L.Evented = L.Class.extend({ if (!fn) { // Set all removed listeners to noop so they are not called if remove happens in fire for (i = 0, len = listeners.length; i < len; i++) { - listeners[i].fn = L.Util.falseFn; + listeners[i].fn = falseFn; } // clear all listeners for a type if function isn't specified delete this._events[type]; @@ -1385,7 +1406,7 @@ L.Evented = L.Class.extend({ if (l.fn === fn) { // set the removed listener to noop so that's not called if remove happens in fire - l.fn = L.Util.falseFn; + l.fn = falseFn; if (this._firingCount) { /* copy array in case events are being fired */ @@ -1406,7 +1427,7 @@ L.Evented = L.Class.extend({ fire: function (type, data, propagate) { if (!this.listens(type, propagate)) { return this; } - var event = L.Util.extend({}, data, {type: type, target: this}); + var event = extend({}, data, {type: type, target: this}); if (this._events) { var listeners = this._events[type]; @@ -1456,7 +1477,7 @@ L.Evented = L.Class.extend({ return this; } - var handler = L.bind(function () { + var handler = bind(function () { this .off(types, fn, context) .off(types, handler, context); @@ -1472,7 +1493,7 @@ L.Evented = L.Class.extend({ // Adds an event parent - an `Evented` that will receive propagated events addEventParent: function (obj) { this._eventParents = this._eventParents || {}; - this._eventParents[L.stamp(obj)] = obj; + this._eventParents[stamp(obj)] = obj; return this; }, @@ -1480,202 +1501,44 @@ L.Evented = L.Class.extend({ // Removes an event parent, so it will stop receiving propagated events removeEventParent: function (obj) { if (this._eventParents) { - delete this._eventParents[L.stamp(obj)]; + delete this._eventParents[stamp(obj)]; } return this; }, _propagateEvent: function (e) { for (var id in this._eventParents) { - this._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true); + this._eventParents[id].fire(e.type, extend({layer: e.target}, e), true); } } -}); - -var proto = L.Evented.prototype; +}; // aliases; we should ditch those eventually // @method addEventListener(…): this // Alias to [`on(…)`](#evented-on) -proto.addEventListener = proto.on; +Events.addEventListener = Events.on; // @method removeEventListener(…): this // Alias to [`off(…)`](#evented-off) // @method clearAllEventListeners(…): this // Alias to [`off()`](#evented-off) -proto.removeEventListener = proto.clearAllEventListeners = proto.off; +Events.removeEventListener = Events.clearAllEventListeners = Events.off; // @method addOneTimeEventListener(…): this // Alias to [`once(…)`](#evented-once) -proto.addOneTimeEventListener = proto.once; +Events.addOneTimeEventListener = Events.once; // @method fireEvent(…): this // Alias to [`fire(…)`](#evented-fire) -proto.fireEvent = proto.fire; +Events.fireEvent = Events.fire; // @method hasEventListeners(…): Boolean // Alias to [`listens(…)`](#evented-listens) -proto.hasEventListeners = proto.listens; +Events.hasEventListeners = Events.listens; -L.Mixin = {Events: proto}; - - - -/* - * @namespace Browser - * @aka L.Browser - * - * A namespace with static properties for browser/feature detection used by Leaflet internally. - * - * @example - * - * ```js - * if (L.Browser.ielt9) { - * alert('Upgrade your browser, dude!'); - * } - * ``` - */ - -(function () { - - var ua = navigator.userAgent.toLowerCase(), - doc = document.documentElement, - - ie = 'ActiveXObject' in window, - - webkit = ua.indexOf('webkit') !== -1, - phantomjs = ua.indexOf('phantom') !== -1, - android23 = ua.search('android [23]') !== -1, - chrome = ua.indexOf('chrome') !== -1, - gecko = ua.indexOf('gecko') !== -1 && !webkit && !window.opera && !ie, - - win = navigator.platform.indexOf('Win') === 0, - - mobile = typeof orientation !== 'undefined' || ua.indexOf('mobile') !== -1, - msPointer = !window.PointerEvent && window.MSPointerEvent, - pointer = window.PointerEvent || msPointer, - - ie3d = ie && ('transition' in doc.style), - webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23, - gecko3d = 'MozPerspective' in doc.style, - opera12 = 'OTransition' in doc.style; - - - var touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window || - (window.DocumentTouch && document instanceof window.DocumentTouch)); - - L.Browser = { - - // @property ie: Boolean - // `true` for all Internet Explorer versions (not Edge). - ie: ie, - - // @property ielt9: Boolean - // `true` for Internet Explorer versions less than 9. - ielt9: ie && !document.addEventListener, - - // @property edge: Boolean - // `true` for the Edge web browser. - edge: 'msLaunchUri' in navigator && !('documentMode' in document), - - // @property webkit: Boolean - // `true` for webkit-based browsers like Chrome and Safari (including mobile versions). - webkit: webkit, - - // @property gecko: Boolean - // `true` for gecko-based browsers like Firefox. - gecko: gecko, - - // @property android: Boolean - // `true` for any browser running on an Android platform. - android: ua.indexOf('android') !== -1, - - // @property android23: Boolean - // `true` for browsers running on Android 2 or Android 3. - android23: android23, - - // @property chrome: Boolean - // `true` for the Chrome browser. - chrome: chrome, - - // @property safari: Boolean - // `true` for the Safari browser. - safari: !chrome && ua.indexOf('safari') !== -1, - - - // @property win: Boolean - // `true` when the browser is running in a Windows platform - win: win, - - - // @property ie3d: Boolean - // `true` for all Internet Explorer versions supporting CSS transforms. - ie3d: ie3d, - - // @property webkit3d: Boolean - // `true` for webkit-based browsers supporting CSS transforms. - webkit3d: webkit3d, - - // @property gecko3d: Boolean - // `true` for gecko-based browsers supporting CSS transforms. - gecko3d: gecko3d, - - // @property opera12: Boolean - // `true` for the Opera browser supporting CSS transforms (version 12 or later). - opera12: opera12, - - // @property any3d: Boolean - // `true` for all browsers supporting CSS transforms. - any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantomjs, - - - // @property mobile: Boolean - // `true` for all browsers running in a mobile device. - mobile: mobile, - - // @property mobileWebkit: Boolean - // `true` for all webkit-based browsers in a mobile device. - mobileWebkit: mobile && webkit, - - // @property mobileWebkit3d: Boolean - // `true` for all webkit-based browsers in a mobile device supporting CSS transforms. - mobileWebkit3d: mobile && webkit3d, - - // @property mobileOpera: Boolean - // `true` for the Opera browser in a mobile device. - mobileOpera: mobile && window.opera, - - // @property mobileGecko: Boolean - // `true` for gecko-based browsers running in a mobile device. - mobileGecko: mobile && gecko, - - - // @property touch: Boolean - // `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events). - // This does not necessarily mean that the browser is running in a computer with - // a touchscreen, it only means that the browser is capable of understanding - // touch events. - touch: !!touch, - - // @property msPointer: Boolean - // `true` for browsers implementing the Microsoft touch events model (notably IE10). - msPointer: !!msPointer, - - // @property pointer: Boolean - // `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx). - pointer: !!pointer, - - - // @property retina: Boolean - // `true` for browsers on a high-resolution "retina" screen. - retina: (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1 - }; - -}()); - - +var Evented = Class.extend(Events); /* * @class Point @@ -1697,26 +1560,26 @@ L.Mixin = {Events: proto}; * ``` */ -L.Point = function (x, y, round) { +function Point(x, y, round) { // @property x: Number; The `x` coordinate of the point this.x = (round ? Math.round(x) : x); // @property y: Number; The `y` coordinate of the point this.y = (round ? Math.round(y) : y); -}; +} -L.Point.prototype = { +Point.prototype = { // @method clone(): Point // Returns a copy of the current point. clone: function () { - return new L.Point(this.x, this.y); + return new Point(this.x, this.y); }, // @method add(otherPoint: Point): Point // Returns the result of addition of the current and the given points. add: function (point) { // non-destructive, returns a new point - return this.clone()._add(L.point(point)); + return this.clone()._add(toPoint(point)); }, _add: function (point) { @@ -1729,7 +1592,7 @@ L.Point.prototype = { // @method subtract(otherPoint: Point): Point // Returns the result of subtraction of the given point from the current. subtract: function (point) { - return this.clone()._subtract(L.point(point)); + return this.clone()._subtract(toPoint(point)); }, _subtract: function (point) { @@ -1768,14 +1631,14 @@ L.Point.prototype = { // [scaling matrix](https://en.wikipedia.org/wiki/Scaling_%28geometry%29#Matrix_representation) // defined by `scale`. scaleBy: function (point) { - return new L.Point(this.x * point.x, this.y * point.y); + return new Point(this.x * point.x, this.y * point.y); }, // @method unscaleBy(scale: Point): Point // Inverse of `scaleBy`. Divide each coordinate of the current point by // each coordinate of `scale`. unscaleBy: function (point) { - return new L.Point(this.x / point.x, this.y / point.y); + return new Point(this.x / point.x, this.y / point.y); }, // @method round(): Point @@ -1817,7 +1680,7 @@ L.Point.prototype = { // @method distanceTo(otherPoint: Point): Number // Returns the cartesian distance between the current and the given points. distanceTo: function (point) { - point = L.point(point); + point = toPoint(point); var x = point.x - this.x, y = point.y - this.y; @@ -1828,7 +1691,7 @@ L.Point.prototype = { // @method equals(otherPoint: Point): Boolean // Returns `true` if the given point has the same coordinates. equals: function (point) { - point = L.point(point); + point = toPoint(point); return point.x === this.x && point.y === this.y; @@ -1837,7 +1700,7 @@ L.Point.prototype = { // @method contains(otherPoint: Point): Boolean // Returns `true` if both coordinates of the given point are less than the corresponding current point coordinates (in absolute values). contains: function (point) { - point = L.point(point); + point = toPoint(point); return Math.abs(point.x) <= Math.abs(this.x) && Math.abs(point.y) <= Math.abs(this.y); @@ -1847,8 +1710,8 @@ L.Point.prototype = { // Returns a string representation of the point for debugging purposes. toString: function () { return 'Point(' + - L.Util.formatNum(this.x) + ', ' + - L.Util.formatNum(this.y) + ')'; + formatNum(this.x) + ', ' + + formatNum(this.y) + ')'; } }; @@ -1862,23 +1725,21 @@ L.Point.prototype = { // @alternative // @factory L.point(coords: Object) // Expects a plain object of the form `{x: Number, y: Number}` instead. -L.point = function (x, y, round) { - if (x instanceof L.Point) { +function toPoint(x, y, round) { + if (x instanceof Point) { return x; } - if (L.Util.isArray(x)) { - return new L.Point(x[0], x[1]); + if (isArray(x)) { + return new Point(x[0], x[1]); } if (x === undefined || x === null) { return x; } if (typeof x === 'object' && 'x' in x && 'y' in x) { - return new L.Point(x.x, x.y); + return new Point(x.x, x.y); } - return new L.Point(x, y, round); -}; - - + return new Point(x, y, round); +} /* * @class Bounds @@ -1901,7 +1762,7 @@ L.point = function (x, y, round) { * ``` */ -L.Bounds = function (a, b) { +function Bounds(a, b) { if (!a) { return; } var points = b ? [a, b] : a; @@ -1909,13 +1770,13 @@ L.Bounds = function (a, b) { for (var i = 0, len = points.length; i < len; i++) { this.extend(points[i]); } -}; +} -L.Bounds.prototype = { +Bounds.prototype = { // @method extend(point: Point): this // Extends the bounds to contain the given point. extend: function (point) { // (Point) - point = L.point(point); + point = toPoint(point); // @property min: Point // The top left corner of the rectangle. @@ -1936,7 +1797,7 @@ L.Bounds.prototype = { // @method getCenter(round?: Boolean): Point // Returns the center point of the bounds. getCenter: function (round) { - return new L.Point( + return new Point( (this.min.x + this.max.x) / 2, (this.min.y + this.max.y) / 2, round); }, @@ -1944,13 +1805,25 @@ L.Bounds.prototype = { // @method getBottomLeft(): Point // Returns the bottom-left point of the bounds. getBottomLeft: function () { - return new L.Point(this.min.x, this.max.y); + return new Point(this.min.x, this.max.y); }, // @method getTopRight(): Point // Returns the top-right point of the bounds. getTopRight: function () { // -> Point - return new L.Point(this.max.x, this.min.y); + return new Point(this.max.x, this.min.y); + }, + + // @method getTopLeft(): Point + // Returns the top-left point of the bounds (i.e. [`this.min`](#bounds-min)). + getTopLeft: function () { + return this.min; // left, top + }, + + // @method getBottomRight(): Point + // Returns the bottom-right point of the bounds (i.e. [`this.max`](#bounds-max)). + getBottomRight: function () { + return this.max; // right, bottom }, // @method getSize(): Point @@ -1967,13 +1840,13 @@ L.Bounds.prototype = { contains: function (obj) { var min, max; - if (typeof obj[0] === 'number' || obj instanceof L.Point) { - obj = L.point(obj); + if (typeof obj[0] === 'number' || obj instanceof Point) { + obj = toPoint(obj); } else { - obj = L.bounds(obj); + obj = toBounds(obj); } - if (obj instanceof L.Bounds) { + if (obj instanceof Bounds) { min = obj.min; max = obj.max; } else { @@ -1990,7 +1863,7 @@ L.Bounds.prototype = { // Returns `true` if the rectangle intersects the given bounds. Two bounds // intersect if they have at least one point in common. intersects: function (bounds) { // (Bounds) -> Boolean - bounds = L.bounds(bounds); + bounds = toBounds(bounds); var min = this.min, max = this.max, @@ -2006,7 +1879,7 @@ L.Bounds.prototype = { // Returns `true` if the rectangle overlaps the given bounds. Two bounds // overlap if their intersection is an area. overlaps: function (bounds) { // (Bounds) -> Boolean - bounds = L.bounds(bounds); + bounds = toBounds(bounds); var min = this.min, max = this.max, @@ -2024,399 +1897,261 @@ L.Bounds.prototype = { }; -// @factory L.bounds(topLeft: Point, bottomRight: Point) -// Creates a Bounds object from two coordinates (usually top-left and bottom-right corners). +// @factory L.bounds(corner1: Point, corner2: Point) +// Creates a Bounds object from two corners coordinate pairs. // @alternative // @factory L.bounds(points: Point[]) -// Creates a Bounds object from the points it contains -L.bounds = function (a, b) { - if (!a || a instanceof L.Bounds) { +// Creates a Bounds object from the given array of points. +function toBounds(a, b) { + if (!a || a instanceof Bounds) { return a; } - return new L.Bounds(a, b); -}; - - + return new Bounds(a, b); +} /* - * @class Transformation - * @aka L.Transformation + * @class LatLngBounds + * @aka L.LatLngBounds * - * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d` - * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing - * the reverse. Used by Leaflet in its projections code. + * Represents a rectangular geographical area on a map. * * @example * * ```js - * var transformation = new L.Transformation(2, 5, -1, 10), - * p = L.point(1, 2), - * p2 = transformation.transform(p), // L.point(7, 8) - * p3 = transformation.untransform(p2); // L.point(1, 2) + * var corner1 = L.latLng(40.712, -74.227), + * corner2 = L.latLng(40.774, -74.125), + * bounds = L.latLngBounds(corner1, corner2); + * ``` + * + * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this: + * + * ```js + * map.fitBounds([ + * [40.712, -74.227], + * [40.774, -74.125] + * ]); * ``` + * + * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range. */ +function LatLngBounds(corner1, corner2) { // (LatLng, LatLng) or (LatLng[]) + if (!corner1) { return; } -// factory new L.Transformation(a: Number, b: Number, c: Number, d: Number) -// Creates a `Transformation` object with the given coefficients. -L.Transformation = function (a, b, c, d) { - this._a = a; - this._b = b; - this._c = c; - this._d = d; -}; + var latlngs = corner2 ? [corner1, corner2] : corner1; -L.Transformation.prototype = { - // @method transform(point: Point, scale?: Number): Point - // Returns a transformed point, optionally multiplied by the given scale. - // Only accepts actual `L.Point` instances, not arrays. - transform: function (point, scale) { // (Point, Number) -> Point - return this._transform(point.clone(), scale); - }, + for (var i = 0, len = latlngs.length; i < len; i++) { + this.extend(latlngs[i]); + } +} - // destructive transform (faster) - _transform: function (point, scale) { - scale = scale || 1; - point.x = scale * (this._a * point.x + this._b); - point.y = scale * (this._c * point.y + this._d); - return point; - }, +LatLngBounds.prototype = { - // @method untransform(point: Point, scale?: Number): Point - // Returns the reverse transformation of the given point, optionally divided - // by the given scale. Only accepts actual `L.Point` instances, not arrays. - untransform: function (point, scale) { - scale = scale || 1; - return new L.Point( - (point.x / scale - this._b) / this._a, - (point.y / scale - this._d) / this._c); - } -}; - - - -/* - * @namespace DomUtil - * - * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model) - * tree, used by Leaflet internally. - * - * Most functions expecting or returning a `HTMLElement` also work for - * SVG elements. The only difference is that classes refer to CSS classes - * in HTML and SVG classes in SVG. - */ + // @method extend(latlng: LatLng): this + // Extend the bounds to contain the given point -L.DomUtil = { + // @alternative + // @method extend(otherBounds: LatLngBounds): this + // Extend the bounds to contain the given bounds + extend: function (obj) { + var sw = this._southWest, + ne = this._northEast, + sw2, ne2; - // @function get(id: String|HTMLElement): HTMLElement - // Returns an element given its DOM id, or returns the element itself - // if it was passed directly. - get: function (id) { - return typeof id === 'string' ? document.getElementById(id) : id; - }, + if (obj instanceof LatLng) { + sw2 = obj; + ne2 = obj; - // @function getStyle(el: HTMLElement, styleAttrib: String): String - // Returns the value for a certain style attribute on an element, - // including computed values or values set through CSS. - getStyle: function (el, style) { + } else if (obj instanceof LatLngBounds) { + sw2 = obj._southWest; + ne2 = obj._northEast; - var value = el.style[style] || (el.currentStyle && el.currentStyle[style]); + if (!sw2 || !ne2) { return this; } - if ((!value || value === 'auto') && document.defaultView) { - var css = document.defaultView.getComputedStyle(el, null); - value = css ? css[style] : null; + } else { + return obj ? this.extend(toLatLng(obj) || toLatLngBounds(obj)) : this; } - return value === 'auto' ? null : value; - }, - - // @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement - // Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element. - create: function (tagName, className, container) { - - var el = document.createElement(tagName); - el.className = className || ''; - - if (container) { - container.appendChild(el); + if (!sw && !ne) { + this._southWest = new LatLng(sw2.lat, sw2.lng); + this._northEast = new LatLng(ne2.lat, ne2.lng); + } else { + sw.lat = Math.min(sw2.lat, sw.lat); + sw.lng = Math.min(sw2.lng, sw.lng); + ne.lat = Math.max(ne2.lat, ne.lat); + ne.lng = Math.max(ne2.lng, ne.lng); } - return el; + return this; }, - // @function remove(el: HTMLElement) - // Removes `el` from its parent element - remove: function (el) { - var parent = el.parentNode; - if (parent) { - parent.removeChild(el); - } - }, + // @method pad(bufferRatio: Number): LatLngBounds + // Returns bigger bounds created by extending the current bounds by a given percentage in each direction. + pad: function (bufferRatio) { + var sw = this._southWest, + ne = this._northEast, + heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio, + widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio; - // @function empty(el: HTMLElement) - // Removes all of `el`'s children elements from `el` - empty: function (el) { - while (el.firstChild) { - el.removeChild(el.firstChild); - } + return new LatLngBounds( + new LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer), + new LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer)); }, - // @function toFront(el: HTMLElement) - // Makes `el` the last children of its parent, so it renders in front of the other children. - toFront: function (el) { - el.parentNode.appendChild(el); + // @method getCenter(): LatLng + // Returns the center point of the bounds. + getCenter: function () { + return new LatLng( + (this._southWest.lat + this._northEast.lat) / 2, + (this._southWest.lng + this._northEast.lng) / 2); }, - // @function toBack(el: HTMLElement) - // Makes `el` the first children of its parent, so it renders back from the other children. - toBack: function (el) { - var parent = el.parentNode; - parent.insertBefore(el, parent.firstChild); + // @method getSouthWest(): LatLng + // Returns the south-west point of the bounds. + getSouthWest: function () { + return this._southWest; }, - // @function hasClass(el: HTMLElement, name: String): Boolean - // Returns `true` if the element's class attribute contains `name`. - hasClass: function (el, name) { - if (el.classList !== undefined) { - return el.classList.contains(name); - } - var className = L.DomUtil.getClass(el); - return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className); + // @method getNorthEast(): LatLng + // Returns the north-east point of the bounds. + getNorthEast: function () { + return this._northEast; }, - // @function addClass(el: HTMLElement, name: String) - // Adds `name` to the element's class attribute. - addClass: function (el, name) { - if (el.classList !== undefined) { - var classes = L.Util.splitWords(name); - for (var i = 0, len = classes.length; i < len; i++) { - el.classList.add(classes[i]); - } - } else if (!L.DomUtil.hasClass(el, name)) { - var className = L.DomUtil.getClass(el); - L.DomUtil.setClass(el, (className ? className + ' ' : '') + name); - } + // @method getNorthWest(): LatLng + // Returns the north-west point of the bounds. + getNorthWest: function () { + return new LatLng(this.getNorth(), this.getWest()); }, - // @function removeClass(el: HTMLElement, name: String) - // Removes `name` from the element's class attribute. - removeClass: function (el, name) { - if (el.classList !== undefined) { - el.classList.remove(name); - } else { - L.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' '))); - } + // @method getSouthEast(): LatLng + // Returns the south-east point of the bounds. + getSouthEast: function () { + return new LatLng(this.getSouth(), this.getEast()); }, - // @function setClass(el: HTMLElement, name: String) - // Sets the element's class. - setClass: function (el, name) { - if (el.className.baseVal === undefined) { - el.className = name; - } else { - // in case of SVG element - el.className.baseVal = name; - } + // @method getWest(): Number + // Returns the west longitude of the bounds + getWest: function () { + return this._southWest.lng; }, - // @function getClass(el: HTMLElement): String - // Returns the element's class. - getClass: function (el) { - return el.className.baseVal === undefined ? el.className : el.className.baseVal; + // @method getSouth(): Number + // Returns the south latitude of the bounds + getSouth: function () { + return this._southWest.lat; }, - // @function setOpacity(el: HTMLElement, opacity: Number) - // Set the opacity of an element (including old IE support). - // `opacity` must be a number from `0` to `1`. - setOpacity: function (el, value) { - - if ('opacity' in el.style) { - el.style.opacity = value; + // @method getEast(): Number + // Returns the east longitude of the bounds + getEast: function () { + return this._northEast.lng; + }, - } else if ('filter' in el.style) { - L.DomUtil._setOpacityIE(el, value); - } + // @method getNorth(): Number + // Returns the north latitude of the bounds + getNorth: function () { + return this._northEast.lat; }, - _setOpacityIE: function (el, value) { - var filter = false, - filterName = 'DXImageTransform.Microsoft.Alpha'; + // @method contains(otherBounds: LatLngBounds): Boolean + // Returns `true` if the rectangle contains the given one. - // filters collection throws an error if we try to retrieve a filter that doesn't exist - try { - filter = el.filters.item(filterName); - } catch (e) { - // don't set opacity to 1 if we haven't already set an opacity, - // it isn't needed and breaks transparent pngs. - if (value === 1) { return; } + // @alternative + // @method contains (latlng: LatLng): Boolean + // Returns `true` if the rectangle contains the given point. + contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean + if (typeof obj[0] === 'number' || obj instanceof LatLng || 'lat' in obj) { + obj = toLatLng(obj); + } else { + obj = toLatLngBounds(obj); } - value = Math.round(value * 100); + var sw = this._southWest, + ne = this._northEast, + sw2, ne2; - if (filter) { - filter.Enabled = (value !== 100); - filter.Opacity = value; + if (obj instanceof LatLngBounds) { + sw2 = obj.getSouthWest(); + ne2 = obj.getNorthEast(); } else { - el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')'; + sw2 = ne2 = obj; } - }, - - // @function testProp(props: String[]): String|false - // Goes through the array of style names and returns the first name - // that is a valid style name for an element. If no such name is found, - // it returns false. Useful for vendor-prefixed styles like `transform`. - testProp: function (props) { - - var style = document.documentElement.style; - for (var i = 0; i < props.length; i++) { - if (props[i] in style) { - return props[i]; - } - } - return false; + return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) && + (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng); }, - // @function setTransform(el: HTMLElement, offset: Point, scale?: Number) - // Resets the 3D CSS transform of `el` so it is translated by `offset` pixels - // and optionally scaled by `scale`. Does not have an effect if the - // browser doesn't support 3D CSS transforms. - setTransform: function (el, offset, scale) { - var pos = offset || new L.Point(0, 0); - - el.style[L.DomUtil.TRANSFORM] = - (L.Browser.ie3d ? - 'translate(' + pos.x + 'px,' + pos.y + 'px)' : - 'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') + - (scale ? ' scale(' + scale + ')' : ''); - }, + // @method intersects(otherBounds: LatLngBounds): Boolean + // Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common. + intersects: function (bounds) { + bounds = toLatLngBounds(bounds); - // @function setPosition(el: HTMLElement, position: Point) - // Sets the position of `el` to coordinates specified by `position`, - // using CSS translate or top/left positioning depending on the browser - // (used by Leaflet internally to position its layers). - setPosition: function (el, point) { // (HTMLElement, Point[, Boolean]) + var sw = this._southWest, + ne = this._northEast, + sw2 = bounds.getSouthWest(), + ne2 = bounds.getNorthEast(), - /*eslint-disable */ - el._leaflet_pos = point; - /*eslint-enable */ + latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat), + lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng); - if (L.Browser.any3d) { - L.DomUtil.setTransform(el, point); - } else { - el.style.left = point.x + 'px'; - el.style.top = point.y + 'px'; - } + return latIntersects && lngIntersects; }, - // @function getPosition(el: HTMLElement): Point - // Returns the coordinates of an element previously positioned with setPosition. - getPosition: function (el) { - // this method is only used for elements previously positioned using setPosition, - // so it's safe to cache the position for performance - - return el._leaflet_pos || new L.Point(0, 0); - } -}; - - -(function () { - // prefix style property names + // @method overlaps(otherBounds: Bounds): Boolean + // Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area. + overlaps: function (bounds) { + bounds = toLatLngBounds(bounds); - // @property TRANSFORM: String - // Vendor-prefixed fransform style name (e.g. `'webkitTransform'` for WebKit). - L.DomUtil.TRANSFORM = L.DomUtil.testProp( - ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']); + var sw = this._southWest, + ne = this._northEast, + sw2 = bounds.getSouthWest(), + ne2 = bounds.getNorthEast(), + latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat), + lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng); - // webkitTransition comes first because some browser versions that drop vendor prefix don't do - // the same for the transitionend event, in particular the Android 4.1 stock browser + return latOverlaps && lngOverlaps; + }, - // @property TRANSITION: String - // Vendor-prefixed transform style name. - var transition = L.DomUtil.TRANSITION = L.DomUtil.testProp( - ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']); + // @method toBBoxString(): String + // Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data. + toBBoxString: function () { + return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(','); + }, - L.DomUtil.TRANSITION_END = - transition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend'; + // @method equals(otherBounds: LatLngBounds, maxMargin?: Number): Boolean + // Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds. The margin of error can be overriden by setting `maxMargin` to a small number. + equals: function (bounds, maxMargin) { + if (!bounds) { return false; } - // @function disableTextSelection() - // Prevents the user from generating `selectstart` DOM events, usually generated - // when the user drags the mouse through a page with text. Used internally - // by Leaflet to override the behaviour of any click-and-drag interaction on - // the map. Affects drag interactions on the whole document. + bounds = toLatLngBounds(bounds); - // @function enableTextSelection() - // Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection). - if ('onselectstart' in document) { - L.DomUtil.disableTextSelection = function () { - L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault); - }; - L.DomUtil.enableTextSelection = function () { - L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault); - }; + return this._southWest.equals(bounds.getSouthWest(), maxMargin) && + this._northEast.equals(bounds.getNorthEast(), maxMargin); + }, - } else { - var userSelectProperty = L.DomUtil.testProp( - ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']); - - L.DomUtil.disableTextSelection = function () { - if (userSelectProperty) { - var style = document.documentElement.style; - this._userSelect = style[userSelectProperty]; - style[userSelectProperty] = 'none'; - } - }; - L.DomUtil.enableTextSelection = function () { - if (userSelectProperty) { - document.documentElement.style[userSelectProperty] = this._userSelect; - delete this._userSelect; - } - }; + // @method isValid(): Boolean + // Returns `true` if the bounds are properly initialized. + isValid: function () { + return !!(this._southWest && this._northEast); } +}; - // @function disableImageDrag() - // As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but - // for `dragstart` DOM events, usually generated when the user drags an image. - L.DomUtil.disableImageDrag = function () { - L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault); - }; - - // @function enableImageDrag() - // Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection). - L.DomUtil.enableImageDrag = function () { - L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault); - }; +// TODO International date line? - // @function preventOutline(el: HTMLElement) - // Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline) - // of the element `el` invisible. Used internally by Leaflet to prevent - // focusable elements from displaying an outline when the user performs a - // drag interaction on them. - L.DomUtil.preventOutline = function (element) { - while (element.tabIndex === -1) { - element = element.parentNode; - } - if (!element || !element.style) { return; } - L.DomUtil.restoreOutline(); - this._outlineElement = element; - this._outlineStyle = element.style.outline; - element.style.outline = 'none'; - L.DomEvent.on(window, 'keydown', L.DomUtil.restoreOutline, this); - }; +// @factory L.latLngBounds(corner1: LatLng, corner2: LatLng) +// Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle. - // @function restoreOutline() - // Cancels the effects of a previous [`L.DomUtil.preventOutline`](). - L.DomUtil.restoreOutline = function () { - if (!this._outlineElement) { return; } - this._outlineElement.style.outline = this._outlineStyle; - delete this._outlineElement; - delete this._outlineStyle; - L.DomEvent.off(window, 'keydown', L.DomUtil.restoreOutline, this); - }; -})(); - - +// @alternative +// @factory L.latLngBounds(latlngs: LatLng[]) +// Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds). +function toLatLngBounds(a, b) { + if (a instanceof LatLngBounds) { + return a; + } + return new LatLngBounds(a, b); +} /* @class LatLng * @aka L.LatLng @@ -2439,7 +2174,7 @@ L.DomUtil = { * ``` */ -L.LatLng = function (lat, lng, alt) { +function LatLng(lat, lng, alt) { if (isNaN(lat) || isNaN(lng)) { throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')'); } @@ -2457,15 +2192,15 @@ L.LatLng = function (lat, lng, alt) { if (alt !== undefined) { this.alt = +alt; } -}; +} -L.LatLng.prototype = { +LatLng.prototype = { // @method equals(otherLatLng: LatLng, maxMargin?: Number): Boolean // Returns `true` if the given `LatLng` point is at the same position (within a small margin of error). The margin of error can be overriden by setting `maxMargin` to a small number. equals: function (obj, maxMargin) { if (!obj) { return false; } - obj = L.latLng(obj); + obj = toLatLng(obj); var margin = Math.max( Math.abs(this.lat - obj.lat), @@ -2478,20 +2213,20 @@ L.LatLng.prototype = { // Returns a string representation of the point (for debugging purposes). toString: function (precision) { return 'LatLng(' + - L.Util.formatNum(this.lat, precision) + ', ' + - L.Util.formatNum(this.lng, precision) + ')'; + formatNum(this.lat, precision) + ', ' + + formatNum(this.lng, precision) + ')'; }, // @method distanceTo(otherLatLng: LatLng): Number // Returns the distance (in meters) to the given `LatLng` calculated using the [Haversine formula](http://en.wikipedia.org/wiki/Haversine_formula). distanceTo: function (other) { - return L.CRS.Earth.distance(this, L.latLng(other)); + return Earth.distance(this, toLatLng(other)); }, // @method wrap(): LatLng // Returns a new `LatLng` object with the longitude wrapped so it's always between -180 and +180 degrees. wrap: function () { - return L.CRS.Earth.wrapLatLng(this); + return Earth.wrapLatLng(this); }, // @method toBounds(sizeInMeters: Number): LatLngBounds @@ -2500,13 +2235,13 @@ L.LatLng.prototype = { var latAccuracy = 180 * sizeInMeters / 40075017, lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat); - return L.latLngBounds( + return toLatLngBounds( [this.lat - latAccuracy, this.lng - lngAccuracy], [this.lat + latAccuracy, this.lng + lngAccuracy]); }, clone: function () { - return new L.LatLng(this.lat, this.lng, this.alt); + return new LatLng(this.lat, this.lng, this.alt); } }; @@ -2523,16 +2258,16 @@ L.LatLng.prototype = { // @factory L.latLng(coords: Object): LatLng // Expects an plain object of the form `{lat: Number, lng: Number}` or `{lat: Number, lng: Number, alt: Number}` instead. -L.latLng = function (a, b, c) { - if (a instanceof L.LatLng) { +function toLatLng(a, b, c) { + if (a instanceof LatLng) { return a; } - if (L.Util.isArray(a) && typeof a[0] !== 'object') { + if (isArray(a) && typeof a[0] !== 'object') { if (a.length === 3) { - return new L.LatLng(a[0], a[1], a[2]); + return new LatLng(a[0], a[1], a[2]); } if (a.length === 2) { - return new L.LatLng(a[0], a[1]); + return new LatLng(a[0], a[1]); } return null; } @@ -2540,301 +2275,184 @@ L.latLng = function (a, b, c) { return a; } if (typeof a === 'object' && 'lat' in a) { - return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt); + return new LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt); } if (b === undefined) { return null; } - return new L.LatLng(a, b, c); -}; - - + return new LatLng(a, b, c); +} /* - * @class LatLngBounds - * @aka L.LatLngBounds - * - * Represents a rectangular geographical area on a map. - * - * @example - * - * ```js - * var corner1 = L.latLng(40.712, -74.227), - * corner2 = L.latLng(40.774, -74.125), - * bounds = L.latLngBounds(corner1, corner2); - * ``` - * - * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this: - * - * ```js - * map.fitBounds([ - * [40.712, -74.227], - * [40.774, -74.125] - * ]); - * ``` + * @namespace CRS + * @crs L.CRS.Base + * Object that defines coordinate reference systems for projecting + * geographical points into pixel (screen) coordinates and back (and to + * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See + * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system). * - * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range. + * Leaflet defines the most usual CRSs by default. If you want to use a + * CRS not defined by default, take a look at the + * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin. */ -L.LatLngBounds = function (corner1, corner2) { // (LatLng, LatLng) or (LatLng[]) - if (!corner1) { return; } - - var latlngs = corner2 ? [corner1, corner2] : corner1; +var CRS = { + // @method latLngToPoint(latlng: LatLng, zoom: Number): Point + // Projects geographical coordinates into pixel coordinates for a given zoom. + latLngToPoint: function (latlng, zoom) { + var projectedPoint = this.projection.project(latlng), + scale = this.scale(zoom); - for (var i = 0, len = latlngs.length; i < len; i++) { - this.extend(latlngs[i]); - } -}; + return this.transformation._transform(projectedPoint, scale); + }, -L.LatLngBounds.prototype = { + // @method pointToLatLng(point: Point, zoom: Number): LatLng + // The inverse of `latLngToPoint`. Projects pixel coordinates on a given + // zoom into geographical coordinates. + pointToLatLng: function (point, zoom) { + var scale = this.scale(zoom), + untransformedPoint = this.transformation.untransform(point, scale); - // @method extend(latlng: LatLng): this - // Extend the bounds to contain the given point + return this.projection.unproject(untransformedPoint); + }, - // @alternative - // @method extend(otherBounds: LatLngBounds): this - // Extend the bounds to contain the given bounds - extend: function (obj) { - var sw = this._southWest, - ne = this._northEast, - sw2, ne2; - - if (obj instanceof L.LatLng) { - sw2 = obj; - ne2 = obj; - - } else if (obj instanceof L.LatLngBounds) { - sw2 = obj._southWest; - ne2 = obj._northEast; - - if (!sw2 || !ne2) { return this; } - - } else { - return obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this; - } - - if (!sw && !ne) { - this._southWest = new L.LatLng(sw2.lat, sw2.lng); - this._northEast = new L.LatLng(ne2.lat, ne2.lng); - } else { - sw.lat = Math.min(sw2.lat, sw.lat); - sw.lng = Math.min(sw2.lng, sw.lng); - ne.lat = Math.max(ne2.lat, ne.lat); - ne.lng = Math.max(ne2.lng, ne.lng); - } - - return this; - }, - - // @method pad(bufferRatio: Number): LatLngBounds - // Returns bigger bounds created by extending the current bounds by a given percentage in each direction. - pad: function (bufferRatio) { - var sw = this._southWest, - ne = this._northEast, - heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio, - widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio; - - return new L.LatLngBounds( - new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer), - new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer)); - }, - - // @method getCenter(): LatLng - // Returns the center point of the bounds. - getCenter: function () { - return new L.LatLng( - (this._southWest.lat + this._northEast.lat) / 2, - (this._southWest.lng + this._northEast.lng) / 2); - }, - - // @method getSouthWest(): LatLng - // Returns the south-west point of the bounds. - getSouthWest: function () { - return this._southWest; - }, - - // @method getNorthEast(): LatLng - // Returns the north-east point of the bounds. - getNorthEast: function () { - return this._northEast; - }, - - // @method getNorthWest(): LatLng - // Returns the north-west point of the bounds. - getNorthWest: function () { - return new L.LatLng(this.getNorth(), this.getWest()); - }, - - // @method getSouthEast(): LatLng - // Returns the south-east point of the bounds. - getSouthEast: function () { - return new L.LatLng(this.getSouth(), this.getEast()); - }, - - // @method getWest(): Number - // Returns the west longitude of the bounds - getWest: function () { - return this._southWest.lng; - }, - - // @method getSouth(): Number - // Returns the south latitude of the bounds - getSouth: function () { - return this._southWest.lat; + // @method project(latlng: LatLng): Point + // Projects geographical coordinates into coordinates in units accepted for + // this CRS (e.g. meters for EPSG:3857, for passing it to WMS services). + project: function (latlng) { + return this.projection.project(latlng); }, - // @method getEast(): Number - // Returns the east longitude of the bounds - getEast: function () { - return this._northEast.lng; + // @method unproject(point: Point): LatLng + // Given a projected coordinate returns the corresponding LatLng. + // The inverse of `project`. + unproject: function (point) { + return this.projection.unproject(point); }, - // @method getNorth(): Number - // Returns the north latitude of the bounds - getNorth: function () { - return this._northEast.lat; + // @method scale(zoom: Number): Number + // Returns the scale used when transforming projected coordinates into + // pixel coordinates for a particular zoom. For example, it returns + // `256 * 2^zoom` for Mercator-based CRS. + scale: function (zoom) { + return 256 * Math.pow(2, zoom); }, - // @method contains(otherBounds: LatLngBounds): Boolean - // Returns `true` if the rectangle contains the given one. - - // @alternative - // @method contains (latlng: LatLng): Boolean - // Returns `true` if the rectangle contains the given point. - contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean - if (typeof obj[0] === 'number' || obj instanceof L.LatLng || 'lat' in obj) { - obj = L.latLng(obj); - } else { - obj = L.latLngBounds(obj); - } - - var sw = this._southWest, - ne = this._northEast, - sw2, ne2; - - if (obj instanceof L.LatLngBounds) { - sw2 = obj.getSouthWest(); - ne2 = obj.getNorthEast(); - } else { - sw2 = ne2 = obj; - } - - return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) && - (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng); + // @method zoom(scale: Number): Number + // Inverse of `scale()`, returns the zoom level corresponding to a scale + // factor of `scale`. + zoom: function (scale) { + return Math.log(scale / 256) / Math.LN2; }, - // @method intersects(otherBounds: LatLngBounds): Boolean - // Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common. - intersects: function (bounds) { - bounds = L.latLngBounds(bounds); - - var sw = this._southWest, - ne = this._northEast, - sw2 = bounds.getSouthWest(), - ne2 = bounds.getNorthEast(), + // @method getProjectedBounds(zoom: Number): Bounds + // Returns the projection's bounds scaled and transformed for the provided `zoom`. + getProjectedBounds: function (zoom) { + if (this.infinite) { return null; } - latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat), - lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng); + var b = this.projection.bounds, + s = this.scale(zoom), + min = this.transformation.transform(b.min, s), + max = this.transformation.transform(b.max, s); - return latIntersects && lngIntersects; + return new Bounds(min, max); }, - // @method overlaps(otherBounds: Bounds): Boolean - // Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area. - overlaps: function (bounds) { - bounds = L.latLngBounds(bounds); - - var sw = this._southWest, - ne = this._northEast, - sw2 = bounds.getSouthWest(), - ne2 = bounds.getNorthEast(), - - latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat), - lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng); + // @method distance(latlng1: LatLng, latlng2: LatLng): Number + // Returns the distance between two geographical coordinates. - return latOverlaps && lngOverlaps; - }, + // @property code: String + // Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`) + // + // @property wrapLng: Number[] + // An array of two numbers defining whether the longitude (horizontal) coordinate + // axis wraps around a given range and how. Defaults to `[-180, 180]` in most + // geographical CRSs. If `undefined`, the longitude axis does not wrap around. + // + // @property wrapLat: Number[] + // Like `wrapLng`, but for the latitude (vertical) axis. - // @method toBBoxString(): String - // Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data. - toBBoxString: function () { - return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(','); - }, + // wrapLng: [min, max], + // wrapLat: [min, max], - // @method equals(otherBounds: LatLngBounds): Boolean - // Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds. - equals: function (bounds) { - if (!bounds) { return false; } + // @property infinite: Boolean + // If true, the coordinate space will be unbounded (infinite in both axes) + infinite: false, - bounds = L.latLngBounds(bounds); + // @method wrapLatLng(latlng: LatLng): LatLng + // Returns a `LatLng` where lat and lng has been wrapped according to the + // CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds. + wrapLatLng: function (latlng) { + var lng = this.wrapLng ? wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng, + lat = this.wrapLat ? wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat, + alt = latlng.alt; - return this._southWest.equals(bounds.getSouthWest()) && - this._northEast.equals(bounds.getNorthEast()); + return new LatLng(lat, lng, alt); }, - // @method isValid(): Boolean - // Returns `true` if the bounds are properly initialized. - isValid: function () { - return !!(this._southWest && this._northEast); - } -}; + // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds + // Returns a `LatLngBounds` with the same size as the given one, ensuring + // that its center is within the CRS's bounds. + // Only accepts actual `L.LatLngBounds` instances, not arrays. + wrapLatLngBounds: function (bounds) { + var center = bounds.getCenter(), + newCenter = this.wrapLatLng(center), + latShift = center.lat - newCenter.lat, + lngShift = center.lng - newCenter.lng; -// TODO International date line? + if (latShift === 0 && lngShift === 0) { + return bounds; + } -// @factory L.latLngBounds(corner1: LatLng, corner2: LatLng) -// Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle. + var sw = bounds.getSouthWest(), + ne = bounds.getNorthEast(), + newSw = new LatLng(sw.lat - latShift, sw.lng - lngShift), + newNe = new LatLng(ne.lat - latShift, ne.lng - lngShift); -// @alternative -// @factory L.latLngBounds(latlngs: LatLng[]) -// Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds). -L.latLngBounds = function (a, b) { - if (a instanceof L.LatLngBounds) { - return a; + return new LatLngBounds(newSw, newNe); } - return new L.LatLngBounds(a, b); -}; +}; + +/* + * @namespace CRS + * @crs L.CRS.Earth + * + * Serves as the base for CRS that are global such that they cover the earth. + * Can only be used as the base for other CRS and cannot be used directly, + * since it does not have a `code`, `projection` or `transformation`. `distance()` returns + * meters. + */ + +var Earth = extend({}, CRS, { + wrapLng: [-180, 180], + + // Mean Earth Radius, as recommended for use by + // the International Union of Geodesy and Geophysics, + // see http://rosettacode.org/wiki/Haversine_formula + R: 6371000, + // distance between two geographical points using spherical law of cosines approximation + distance: function (latlng1, latlng2) { + var rad = Math.PI / 180, + lat1 = latlng1.lat * rad, + lat2 = latlng2.lat * rad, + a = Math.sin(lat1) * Math.sin(lat2) + + Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad); + return this.R * Math.acos(Math.min(a, 1)); + } +}); /* * @namespace Projection - * @section - * Leaflet comes with a set of already defined Projections out of the box: - * - * @projection L.Projection.LonLat + * @projection L.Projection.SphericalMercator * - * Equirectangular, or Plate Carree projection — the most simple projection, - * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as - * latitude. Also suitable for flat worlds, e.g. game maps. Used by the - * `EPSG:3395` and `Simple` CRS. + * Spherical Mercator projection — the most common projection for online maps, + * used by almost all free and commercial tile providers. Assumes that Earth is + * a sphere. Used by the `EPSG:3857` CRS. */ -L.Projection = {}; - -L.Projection.LonLat = { - project: function (latlng) { - return new L.Point(latlng.lng, latlng.lat); - }, - - unproject: function (point) { - return new L.LatLng(point.y, point.x); - }, - - bounds: L.bounds([-180, -90], [180, 90]) -}; - - - -/* - * @namespace Projection - * @projection L.Projection.SphericalMercator - * - * Spherical Mercator projection — the most common projection for online maps, - * used by almost all free and commercial tile providers. Assumes that Earth is - * a sphere. Used by the `EPSG:3857` CRS. - */ - -L.Projection.SphericalMercator = { +var SphericalMercator = { R: 6378137, MAX_LATITUDE: 85.0511287798, @@ -2845,7 +2463,7 @@ L.Projection.SphericalMercator = { lat = Math.max(Math.min(max, latlng.lat), -max), sin = Math.sin(lat * d); - return new L.Point( + return new Point( this.R * latlng.lng * d, this.R * Math.log((1 + sin) / (1 - sin)) / 2); }, @@ -2853,12265 +2471,13005 @@ L.Projection.SphericalMercator = { unproject: function (point) { var d = 180 / Math.PI; - return new L.LatLng( + return new LatLng( (2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d, point.x * d / this.R); }, bounds: (function () { var d = 6378137 * Math.PI; - return L.bounds([-d, -d], [d, d]); + return new Bounds([-d, -d], [d, d]); })() +}; + +/* + * @class Transformation + * @aka L.Transformation + * + * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d` + * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing + * the reverse. Used by Leaflet in its projections code. + * + * @example + * + * ```js + * var transformation = L.transformation(2, 5, -1, 10), + * p = L.point(1, 2), + * p2 = transformation.transform(p), // L.point(7, 8) + * p3 = transformation.untransform(p2); // L.point(1, 2) + * ``` + */ + + +// factory new L.Transformation(a: Number, b: Number, c: Number, d: Number) +// Creates a `Transformation` object with the given coefficients. +function Transformation(a, b, c, d) { + if (isArray(a)) { + // use array properties + this._a = a[0]; + this._b = a[1]; + this._c = a[2]; + this._d = a[3]; + return; + } + this._a = a; + this._b = b; + this._c = c; + this._d = d; +} + +Transformation.prototype = { + // @method transform(point: Point, scale?: Number): Point + // Returns a transformed point, optionally multiplied by the given scale. + // Only accepts actual `L.Point` instances, not arrays. + transform: function (point, scale) { // (Point, Number) -> Point + return this._transform(point.clone(), scale); + }, + + // destructive transform (faster) + _transform: function (point, scale) { + scale = scale || 1; + point.x = scale * (this._a * point.x + this._b); + point.y = scale * (this._c * point.y + this._d); + return point; + }, + + // @method untransform(point: Point, scale?: Number): Point + // Returns the reverse transformation of the given point, optionally divided + // by the given scale. Only accepts actual `L.Point` instances, not arrays. + untransform: function (point, scale) { + scale = scale || 1; + return new Point( + (point.x / scale - this._b) / this._a, + (point.y / scale - this._d) / this._c); + } }; + +// factory L.transformation(a: Number, b: Number, c: Number, d: Number) + +// @factory L.transformation(a: Number, b: Number, c: Number, d: Number) +// Instantiates a Transformation object with the given coefficients. + +// @alternative +// @factory L.transformation(coefficients: Array): Transformation +// Expects an coeficients array of the form +// `[a: Number, b: Number, c: Number, d: Number]`. + +function toTransformation(a, b, c, d) { + return new Transformation(a, b, c, d); +} + +/* + * @namespace CRS + * @crs L.CRS.EPSG3857 + * + * The most common CRS for online maps, used by almost all free and commercial + * tile providers. Uses Spherical Mercator projection. Set in by default in + * Map's `crs` option. + */ + +var EPSG3857 = extend({}, Earth, { + code: 'EPSG:3857', + projection: SphericalMercator, + + transformation: (function () { + var scale = 0.5 / (Math.PI * SphericalMercator.R); + return toTransformation(scale, 0.5, -scale, 0.5); + }()) +}); + +var EPSG900913 = extend({}, EPSG3857, { + code: 'EPSG:900913' +}); + +// @namespace SVG; @section +// There are several static functions which can be called without instantiating L.SVG: + +// @function create(name: String): SVGElement +// Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement), +// corresponding to the class name passed. For example, using 'line' will return +// an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement). +function svgCreate(name) { + return document.createElementNS('http://www.w3.org/2000/svg', name); +} + +// @function pointsToPath(rings: Point[], closed: Boolean): String +// Generates a SVG path string for multiple rings, with each ring turning +// into "M..L..L.." instructions +function pointsToPath(rings, closed) { + var str = '', + i, j, len, len2, points, p; + + for (i = 0, len = rings.length; i < len; i++) { + points = rings[i]; + + for (j = 0, len2 = points.length; j < len2; j++) { + p = points[j]; + str += (j ? 'L' : 'M') + p.x + ' ' + p.y; + } + // closes the ring for polygons; "x" is VML syntax + str += closed ? (svg ? 'z' : 'x') : ''; + } + // SVG complains about empty path strings + return str || 'M0 0'; +} /* - * @class CRS - * @aka L.CRS - * Abstract class that defines coordinate reference systems for projecting - * geographical points into pixel (screen) coordinates and back (and to - * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See - * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system). + * @namespace Browser + * @aka L.Browser * - * Leaflet defines the most usual CRSs by default. If you want to use a - * CRS not defined by default, take a look at the - * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin. + * A namespace with static properties for browser/feature detection used by Leaflet internally. + * + * @example + * + * ```js + * if (L.Browser.ielt9) { + * alert('Upgrade your browser, dude!'); + * } + * ``` */ -L.CRS = { - // @method latLngToPoint(latlng: LatLng, zoom: Number): Point - // Projects geographical coordinates into pixel coordinates for a given zoom. - latLngToPoint: function (latlng, zoom) { - var projectedPoint = this.projection.project(latlng), - scale = this.scale(zoom); +var style$1 = document.documentElement.style; - return this.transformation._transform(projectedPoint, scale); - }, +// @property ie: Boolean; `true` for all Internet Explorer versions (not Edge). +var ie = 'ActiveXObject' in window; - // @method pointToLatLng(point: Point, zoom: Number): LatLng - // The inverse of `latLngToPoint`. Projects pixel coordinates on a given - // zoom into geographical coordinates. - pointToLatLng: function (point, zoom) { - var scale = this.scale(zoom), - untransformedPoint = this.transformation.untransform(point, scale); +// @property ielt9: Boolean; `true` for Internet Explorer versions less than 9. +var ielt9 = ie && !document.addEventListener; - return this.projection.unproject(untransformedPoint); - }, +// @property edge: Boolean; `true` for the Edge web browser. +var edge = 'msLaunchUri' in navigator && !('documentMode' in document); - // @method project(latlng: LatLng): Point - // Projects geographical coordinates into coordinates in units accepted for - // this CRS (e.g. meters for EPSG:3857, for passing it to WMS services). - project: function (latlng) { - return this.projection.project(latlng); - }, +// @property webkit: Boolean; +// `true` for webkit-based browsers like Chrome and Safari (including mobile versions). +var webkit = userAgentContains('webkit'); - // @method unproject(point: Point): LatLng - // Given a projected coordinate returns the corresponding LatLng. - // The inverse of `project`. - unproject: function (point) { - return this.projection.unproject(point); - }, +// @property android: Boolean +// `true` for any browser running on an Android platform. +var android = userAgentContains('android'); - // @method scale(zoom: Number): Number - // Returns the scale used when transforming projected coordinates into - // pixel coordinates for a particular zoom. For example, it returns - // `256 * 2^zoom` for Mercator-based CRS. - scale: function (zoom) { - return 256 * Math.pow(2, zoom); - }, +// @property android23: Boolean; `true` for browsers running on Android 2 or Android 3. +var android23 = userAgentContains('android 2') || userAgentContains('android 3'); - // @method zoom(scale: Number): Number - // Inverse of `scale()`, returns the zoom level corresponding to a scale - // factor of `scale`. - zoom: function (scale) { - return Math.log(scale / 256) / Math.LN2; - }, +// @property opera: Boolean; `true` for the Opera browser +var opera = !!window.opera; - // @method getProjectedBounds(zoom: Number): Bounds - // Returns the projection's bounds scaled and transformed for the provided `zoom`. - getProjectedBounds: function (zoom) { - if (this.infinite) { return null; } +// @property chrome: Boolean; `true` for the Chrome browser. +var chrome = userAgentContains('chrome'); - var b = this.projection.bounds, - s = this.scale(zoom), - min = this.transformation.transform(b.min, s), - max = this.transformation.transform(b.max, s); +// @property gecko: Boolean; `true` for gecko-based browsers like Firefox. +var gecko = userAgentContains('gecko') && !webkit && !opera && !ie; - return L.bounds(min, max); - }, +// @property safari: Boolean; `true` for the Safari browser. +var safari = !chrome && userAgentContains('safari'); - // @method distance(latlng1: LatLng, latlng2: LatLng): Number - // Returns the distance between two geographical coordinates. +var phantom = userAgentContains('phantom'); - // @property code: String - // Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`) - // - // @property wrapLng: Number[] - // An array of two numbers defining whether the longitude (horizontal) coordinate - // axis wraps around a given range and how. Defaults to `[-180, 180]` in most - // geographical CRSs. If `undefined`, the longitude axis does not wrap around. - // - // @property wrapLat: Number[] - // Like `wrapLng`, but for the latitude (vertical) axis. +// @property opera12: Boolean +// `true` for the Opera browser supporting CSS transforms (version 12 or later). +var opera12 = 'OTransition' in style$1; - // wrapLng: [min, max], - // wrapLat: [min, max], +// @property win: Boolean; `true` when the browser is running in a Windows platform +var win = navigator.platform.indexOf('Win') === 0; - // @property infinite: Boolean - // If true, the coordinate space will be unbounded (infinite in both axes) - infinite: false, +// @property ie3d: Boolean; `true` for all Internet Explorer versions supporting CSS transforms. +var ie3d = ie && ('transition' in style$1); - // @method wrapLatLng(latlng: LatLng): LatLng - // Returns a `LatLng` where lat and lng has been wrapped according to the - // CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds. - // Only accepts actual `L.LatLng` instances, not arrays. - wrapLatLng: function (latlng) { - var lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng, - lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat, - alt = latlng.alt; +// @property webkit3d: Boolean; `true` for webkit-based browsers supporting CSS transforms. +var webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23; - return L.latLng(lat, lng, alt); - }, +// @property gecko3d: Boolean; `true` for gecko-based browsers supporting CSS transforms. +var gecko3d = 'MozPerspective' in style$1; - // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds - // Returns a `LatLngBounds` with the same size as the given one, ensuring - // that its center is within the CRS's bounds. - // Only accepts actual `L.LatLngBounds` instances, not arrays. - wrapLatLngBounds: function (bounds) { - var center = bounds.getCenter(), - newCenter = this.wrapLatLng(center), - latShift = center.lat - newCenter.lat, - lngShift = center.lng - newCenter.lng; +// @property any3d: Boolean +// `true` for all browsers supporting CSS transforms. +var any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantom; - if (latShift === 0 && lngShift === 0) { - return bounds; - } +// @property mobile: Boolean; `true` for all browsers running in a mobile device. +var mobile = typeof orientation !== 'undefined' || userAgentContains('mobile'); - var sw = bounds.getSouthWest(), - ne = bounds.getNorthEast(), - newSw = L.latLng({lat: sw.lat - latShift, lng: sw.lng - lngShift}), - newNe = L.latLng({lat: ne.lat - latShift, lng: ne.lng - lngShift}); +// @property mobileWebkit: Boolean; `true` for all webkit-based browsers in a mobile device. +var mobileWebkit = mobile && webkit; + +// @property mobileWebkit3d: Boolean +// `true` for all webkit-based browsers in a mobile device supporting CSS transforms. +var mobileWebkit3d = mobile && webkit3d; + +// @property msPointer: Boolean +// `true` for browsers implementing the Microsoft touch events model (notably IE10). +var msPointer = !window.PointerEvent && window.MSPointerEvent; + +// @property pointer: Boolean +// `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx). +var pointer = !!(window.PointerEvent || msPointer); + +// @property touch: Boolean +// `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events). +// This does not necessarily mean that the browser is running in a computer with +// a touchscreen, it only means that the browser is capable of understanding +// touch events. +var touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window || + (window.DocumentTouch && document instanceof window.DocumentTouch)); + +// @property mobileOpera: Boolean; `true` for the Opera browser in a mobile device. +var mobileOpera = mobile && opera; + +// @property mobileGecko: Boolean +// `true` for gecko-based browsers running in a mobile device. +var mobileGecko = mobile && gecko; + +// @property retina: Boolean +// `true` for browsers on a high-resolution "retina" screen. +var retina = (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1; - return new L.LatLngBounds(newSw, newNe); + +// @property canvas: Boolean +// `true` when the browser supports [``](https://developer.mozilla.org/docs/Web/API/Canvas_API). +var canvas = (function () { + return !!document.createElement('canvas').getContext; +}()); + +// @property svg: Boolean +// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG). +var svg = !!(document.createElementNS && svgCreate('svg').createSVGRect); + +// @property vml: Boolean +// `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language). +var vml = !svg && (function () { + try { + var div = document.createElement('div'); + div.innerHTML = ''; + + var shape = div.firstChild; + shape.style.behavior = 'url(#default#VML)'; + + return shape && (typeof shape.adj === 'object'); + + } catch (e) { + return false; } -}; +}()); + + +function userAgentContains(str) { + return navigator.userAgent.toLowerCase().indexOf(str) >= 0; +} +var Browser = (Object.freeze || Object)({ + ie: ie, + ielt9: ielt9, + edge: edge, + webkit: webkit, + android: android, + android23: android23, + opera: opera, + chrome: chrome, + gecko: gecko, + safari: safari, + phantom: phantom, + opera12: opera12, + win: win, + ie3d: ie3d, + webkit3d: webkit3d, + gecko3d: gecko3d, + any3d: any3d, + mobile: mobile, + mobileWebkit: mobileWebkit, + mobileWebkit3d: mobileWebkit3d, + msPointer: msPointer, + pointer: pointer, + touch: touch, + mobileOpera: mobileOpera, + mobileGecko: mobileGecko, + retina: retina, + canvas: canvas, + svg: svg, + vml: vml +}); /* - * @namespace CRS - * @crs L.CRS.Simple - * - * A simple CRS that maps longitude and latitude into `x` and `y` directly. - * May be used for maps of flat surfaces (e.g. game maps). Note that the `y` - * axis should still be inverted (going from bottom to top). `distance()` returns - * simple euclidean distance. + * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices. */ -L.CRS.Simple = L.extend({}, L.CRS, { - projection: L.Projection.LonLat, - transformation: new L.Transformation(1, 0, -1, 0), - scale: function (zoom) { - return Math.pow(2, zoom); - }, +var POINTER_DOWN = msPointer ? 'MSPointerDown' : 'pointerdown'; +var POINTER_MOVE = msPointer ? 'MSPointerMove' : 'pointermove'; +var POINTER_UP = msPointer ? 'MSPointerUp' : 'pointerup'; +var POINTER_CANCEL = msPointer ? 'MSPointerCancel' : 'pointercancel'; +var TAG_WHITE_LIST = ['INPUT', 'SELECT', 'OPTION']; +var _pointers = {}; +var _pointerDocListener = false; - zoom: function (scale) { - return Math.log(scale) / Math.LN2; - }, +// DomEvent.DoubleTap needs to know about this +var _pointersCount = 0; - distance: function (latlng1, latlng2) { - var dx = latlng2.lng - latlng1.lng, - dy = latlng2.lat - latlng1.lat; +// Provides a touch events wrapper for (ms)pointer events. +// ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890 - return Math.sqrt(dx * dx + dy * dy); - }, +function addPointerListener(obj, type, handler, id) { + if (type === 'touchstart') { + _addPointerStart(obj, handler, id); - infinite: true -}); + } else if (type === 'touchmove') { + _addPointerMove(obj, handler, id); + } else if (type === 'touchend') { + _addPointerEnd(obj, handler, id); + } + return this; +} -/* - * @namespace CRS - * @crs L.CRS.Earth - * - * Serves as the base for CRS that are global such that they cover the earth. - * Can only be used as the base for other CRS and cannot be used directly, - * since it does not have a `code`, `projection` or `transformation`. `distance()` returns - * meters. - */ +function removePointerListener(obj, type, id) { + var handler = obj['_leaflet_' + type + id]; -L.CRS.Earth = L.extend({}, L.CRS, { - wrapLng: [-180, 180], + if (type === 'touchstart') { + obj.removeEventListener(POINTER_DOWN, handler, false); - // Mean Earth Radius, as recommended for use by - // the International Union of Geodesy and Geophysics, - // see http://rosettacode.org/wiki/Haversine_formula - R: 6371000, + } else if (type === 'touchmove') { + obj.removeEventListener(POINTER_MOVE, handler, false); - // distance between two geographical points using spherical law of cosines approximation - distance: function (latlng1, latlng2) { - var rad = Math.PI / 180, - lat1 = latlng1.lat * rad, - lat2 = latlng2.lat * rad, - a = Math.sin(lat1) * Math.sin(lat2) + - Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad); + } else if (type === 'touchend') { + obj.removeEventListener(POINTER_UP, handler, false); + obj.removeEventListener(POINTER_CANCEL, handler, false); + } - return this.R * Math.acos(Math.min(a, 1)); + return this; +} + +function _addPointerStart(obj, handler, id) { + var onDown = bind(function (e) { + if (e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) { + // In IE11, some touch events needs to fire for form controls, or + // the controls will stop working. We keep a whitelist of tag names that + // need these events. For other target tags, we prevent default on the event. + if (TAG_WHITE_LIST.indexOf(e.target.tagName) < 0) { + preventDefault(e); + } else { + return; + } + } + + _handlePointer(e, handler); + }); + + obj['_leaflet_touchstart' + id] = onDown; + obj.addEventListener(POINTER_DOWN, onDown, false); + + // need to keep track of what pointers and how many are active to provide e.touches emulation + if (!_pointerDocListener) { + // we listen documentElement as any drags that end by moving the touch off the screen get fired there + document.documentElement.addEventListener(POINTER_DOWN, _globalPointerDown, true); + document.documentElement.addEventListener(POINTER_MOVE, _globalPointerMove, true); + document.documentElement.addEventListener(POINTER_UP, _globalPointerUp, true); + document.documentElement.addEventListener(POINTER_CANCEL, _globalPointerUp, true); + + _pointerDocListener = true; } -}); +} +function _globalPointerDown(e) { + _pointers[e.pointerId] = e; + _pointersCount++; +} +function _globalPointerMove(e) { + if (_pointers[e.pointerId]) { + _pointers[e.pointerId] = e; + } +} -/* - * @namespace CRS - * @crs L.CRS.EPSG3857 - * - * The most common CRS for online maps, used by almost all free and commercial - * tile providers. Uses Spherical Mercator projection. Set in by default in - * Map's `crs` option. - */ - -L.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, { - code: 'EPSG:3857', - projection: L.Projection.SphericalMercator, - - transformation: (function () { - var scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R); - return new L.Transformation(scale, 0.5, -scale, 0.5); - }()) -}); - -L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, { - code: 'EPSG:900913' -}); +function _globalPointerUp(e) { + delete _pointers[e.pointerId]; + _pointersCount--; +} +function _handlePointer(e, handler) { + e.touches = []; + for (var i in _pointers) { + e.touches.push(_pointers[i]); + } + e.changedTouches = [e]; + handler(e); +} -/* - * @namespace CRS - * @crs L.CRS.EPSG4326 - * - * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection. - * - * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic), - * which is a breaking change from 0.7.x behaviour. If you are using a `TileLayer` - * with this CRS, ensure that there are two 256x256 pixel tiles covering the - * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90), - * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set. - */ - -L.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, { - code: 'EPSG:4326', - projection: L.Projection.LonLat, - transformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5) -}); +function _addPointerMove(obj, handler, id) { + var onMove = function (e) { + // don't fire touch moves when mouse isn't down + if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; } + + _handlePointer(e, handler); + }; + + obj['_leaflet_touchmove' + id] = onMove; + obj.addEventListener(POINTER_MOVE, onMove, false); +} +function _addPointerEnd(obj, handler, id) { + var onUp = function (e) { + _handlePointer(e, handler); + }; + obj['_leaflet_touchend' + id] = onUp; + obj.addEventListener(POINTER_UP, onUp, false); + obj.addEventListener(POINTER_CANCEL, onUp, false); +} /* - * @class Map - * @aka L.Map - * @inherits Evented - * - * The central class of the API — it is used to create a map on a page and manipulate it. - * - * @example - * - * ```js - * // initialize the map on the "map" div with a given center and zoom - * var map = L.map('map', { - * center: [51.505, -0.09], - * zoom: 13 - * }); - * ``` - * + * Extends the event handling code with double tap support for mobile browsers. */ -L.Map = L.Evented.extend({ +var _touchstart = msPointer ? 'MSPointerDown' : pointer ? 'pointerdown' : 'touchstart'; +var _touchend = msPointer ? 'MSPointerUp' : pointer ? 'pointerup' : 'touchend'; +var _pre = '_leaflet_'; - options: { - // @section Map State Options - // @option crs: CRS = L.CRS.EPSG3857 - // The [Coordinate Reference System](#crs) to use. Don't change this if you're not - // sure what it means. - crs: L.CRS.EPSG3857, +// inspired by Zepto touch code by Thomas Fuchs +function addDoubleTapListener(obj, handler, id) { + var last, touch$$1, + doubleTap = false, + delay = 250; - // @option center: LatLng = undefined - // Initial geographic center of the map - center: undefined, + function onTouchStart(e) { + var count; - // @option zoom: Number = undefined - // Initial map zoom level - zoom: undefined, + if (pointer) { + if ((!edge) || e.pointerType === 'mouse') { return; } + count = _pointersCount; + } else { + count = e.touches.length; + } - // @option minZoom: Number = undefined - // Minimum zoom level of the map. Overrides any `minZoom` option set on map layers. - minZoom: undefined, + if (count > 1) { return; } - // @option maxZoom: Number = undefined - // Maximum zoom level of the map. Overrides any `maxZoom` option set on map layers. - maxZoom: undefined, + var now = Date.now(), + delta = now - (last || now); - // @option layers: Layer[] = [] - // Array of layers that will be added to the map initially - layers: [], + touch$$1 = e.touches ? e.touches[0] : e; + doubleTap = (delta > 0 && delta <= delay); + last = now; + } - // @option maxBounds: LatLngBounds = null - // When this option is set, the map restricts the view to the given - // geographical bounds, bouncing the user back if the user tries to pan - // outside the view. To set the restriction dynamically, use - // [`setMaxBounds`](#map-setmaxbounds) method. - maxBounds: undefined, + function onTouchEnd(e) { + if (doubleTap && !touch$$1.cancelBubble) { + if (pointer) { + if ((!edge) || e.pointerType === 'mouse') { return; } + // work around .type being readonly with MSPointer* events + var newTouch = {}, + prop, i; + + for (i in touch$$1) { + prop = touch$$1[i]; + newTouch[i] = prop && prop.bind ? prop.bind(touch$$1) : prop; + } + touch$$1 = newTouch; + } + touch$$1.type = 'dblclick'; + handler(touch$$1); + last = null; + } + } - // @option renderer: Renderer = * - // The default method for drawing vector layers on the map. `L.SVG` - // or `L.Canvas` by default depending on browser support. - renderer: undefined, + obj[_pre + _touchstart + id] = onTouchStart; + obj[_pre + _touchend + id] = onTouchEnd; + obj[_pre + 'dblclick' + id] = handler; + obj.addEventListener(_touchstart, onTouchStart, false); + obj.addEventListener(_touchend, onTouchEnd, false); - // @section Animation Options - // @option zoomAnimation: Boolean = true - // Whether the map zoom animation is enabled. By default it's enabled - // in all browsers that support CSS3 Transitions except Android. - zoomAnimation: true, + // On some platforms (notably, chrome<55 on win10 + touchscreen + mouse), + // the browser doesn't fire touchend/pointerup events but does fire + // native dblclicks. See #4127. + // Edge 14 also fires native dblclicks, but only for pointerType mouse, see #5180. + obj.addEventListener('dblclick', handler, false); - // @option zoomAnimationThreshold: Number = 4 - // Won't animate zoom if the zoom difference exceeds this value. - zoomAnimationThreshold: 4, + return this; +} - // @option fadeAnimation: Boolean = true - // Whether the tile fade animation is enabled. By default it's enabled - // in all browsers that support CSS3 Transitions except Android. - fadeAnimation: true, +function removeDoubleTapListener(obj, id) { + var touchstart = obj[_pre + _touchstart + id], + touchend = obj[_pre + _touchend + id], + dblclick = obj[_pre + 'dblclick' + id]; - // @option markerZoomAnimation: Boolean = true - // Whether markers animate their zoom with the zoom animation, if disabled - // they will disappear for the length of the animation. By default it's - // enabled in all browsers that support CSS3 Transitions except Android. - markerZoomAnimation: true, + obj.removeEventListener(_touchstart, touchstart, false); + obj.removeEventListener(_touchend, touchend, false); + if (!edge) { + obj.removeEventListener('dblclick', dblclick, false); + } - // @option transform3DLimit: Number = 2^23 - // Defines the maximum size of a CSS translation transform. The default - // value should not be changed unless a web browser positions layers in - // the wrong place after doing a large `panBy`. - transform3DLimit: 8388608, // Precision limit of a 32-bit float + return this; +} + +/* + * @namespace DomEvent + * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally. + */ - // @section Interaction Options - // @option zoomSnap: Number = 1 - // Forces the map's zoom level to always be a multiple of this, particularly - // right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom. - // By default, the zoom level snaps to the nearest integer; lower values - // (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0` - // means the zoom level will not be snapped after `fitBounds` or a pinch-zoom. - zoomSnap: 1, +// Inspired by John Resig, Dean Edwards and YUI addEvent implementations. - // @option zoomDelta: Number = 1 - // Controls how much the map's zoom level will change after a - // [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+` - // or `-` on the keyboard, or using the [zoom controls](#control-zoom). - // Values smaller than `1` (e.g. `0.5`) allow for greater granularity. - zoomDelta: 1, +// @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this +// Adds a listener function (`fn`) to a particular DOM event type of the +// element `el`. You can optionally specify the context of the listener +// (object the `this` keyword will point to). You can also pass several +// space-separated types (e.g. `'click dblclick'`). - // @option trackResize: Boolean = true - // Whether the map automatically handles browser window resize to update itself. - trackResize: true - }, +// @alternative +// @function on(el: HTMLElement, eventMap: Object, context?: Object): this +// Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}` +function on(obj, types, fn, context) { - initialize: function (id, options) { // (HTMLElement or String, Object) - options = L.setOptions(this, options); + if (typeof types === 'object') { + for (var type in types) { + addOne(obj, type, types[type], fn); + } + } else { + types = splitWords(types); - this._initContainer(id); - this._initLayout(); + for (var i = 0, len = types.length; i < len; i++) { + addOne(obj, types[i], fn, context); + } + } - // hack for https://github.com/Leaflet/Leaflet/issues/1980 - this._onResize = L.bind(this._onResize, this); + return this; +} - this._initEvents(); +var eventsKey = '_leaflet_events'; - if (options.maxBounds) { - this.setMaxBounds(options.maxBounds); - } +// @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this +// Removes a previously added listener function. If no function is specified, +// it will remove all the listeners of that particular DOM event from the element. +// Note that if you passed a custom context to on, you must pass the same +// context to `off` in order to remove the listener. - if (options.zoom !== undefined) { - this._zoom = this._limitZoom(options.zoom); +// @alternative +// @function off(el: HTMLElement, eventMap: Object, context?: Object): this +// Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}` + +// @alternative +// @function off(el: HTMLElement): this +// Removes all known event listeners +function off(obj, types, fn, context) { + + if (typeof types === 'object') { + for (var type in types) { + removeOne(obj, type, types[type], fn); } + } else if (types) { + types = splitWords(types); - if (options.center && options.zoom !== undefined) { - this.setView(L.latLng(options.center), options.zoom, {reset: true}); + for (var i = 0, len = types.length; i < len; i++) { + removeOne(obj, types[i], fn, context); + } + } else { + for (var j in obj[eventsKey]) { + removeOne(obj, j, obj[eventsKey][j]); } + delete obj[eventsKey]; + } +} - this._handlers = []; - this._layers = {}; - this._zoomBoundLayers = {}; - this._sizeChanged = true; +function addOne(obj, type, fn, context) { + var id = type + stamp(fn) + (context ? '_' + stamp(context) : ''); - this.callInitHooks(); + if (obj[eventsKey] && obj[eventsKey][id]) { return this; } - // don't animate on browsers without hardware-accelerated transitions or old Android/Opera - this._zoomAnimated = L.DomUtil.TRANSITION && L.Browser.any3d && !L.Browser.mobileOpera && - this.options.zoomAnimation; + var handler = function (e) { + return fn.call(context || obj, e || window.event); + }; - // zoom transitions run with the same duration for all layers, so if one of transitionend events - // happens after starting zoom animation (propagating to the map pane), we know that it ended globally - if (this._zoomAnimated) { - this._createAnimProxy(); - L.DomEvent.on(this._proxy, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this); + var originalHandler = handler; + + if (pointer && type.indexOf('touch') === 0) { + // Needs DomEvent.Pointer.js + addPointerListener(obj, type, handler, id); + + } else if (touch && (type === 'dblclick') && addDoubleTapListener && + !(pointer && chrome)) { + // Chrome >55 does not need the synthetic dblclicks from addDoubleTapListener + // See #5180 + addDoubleTapListener(obj, handler, id); + + } else if ('addEventListener' in obj) { + + if (type === 'mousewheel') { + obj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false); + + } else if ((type === 'mouseenter') || (type === 'mouseleave')) { + handler = function (e) { + e = e || window.event; + if (isExternalTarget(obj, e)) { + originalHandler(e); + } + }; + obj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false); + + } else { + if (type === 'click' && android) { + handler = function (e) { + filterClick(e, originalHandler); + }; + } + obj.addEventListener(type, handler, false); } - this._addLayers(this.options.layers); - }, + } else if ('attachEvent' in obj) { + obj.attachEvent('on' + type, handler); + } + obj[eventsKey] = obj[eventsKey] || {}; + obj[eventsKey][id] = handler; +} - // @section Methods for modifying map state +function removeOne(obj, type, fn, context) { - // @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this - // Sets the view of the map (geographical center and zoom) with the given - // animation options. - setView: function (center, zoom, options) { + var id = type + stamp(fn) + (context ? '_' + stamp(context) : ''), + handler = obj[eventsKey] && obj[eventsKey][id]; - zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom); - center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds); - options = options || {}; + if (!handler) { return this; } - this._stop(); + if (pointer && type.indexOf('touch') === 0) { + removePointerListener(obj, type, id); - if (this._loaded && !options.reset && options !== true) { + } else if (touch && (type === 'dblclick') && removeDoubleTapListener) { + removeDoubleTapListener(obj, id); - if (options.animate !== undefined) { - options.zoom = L.extend({animate: options.animate}, options.zoom); - options.pan = L.extend({animate: options.animate, duration: options.duration}, options.pan); - } + } else if ('removeEventListener' in obj) { - // try animating pan or zoom - var moved = (this._zoom !== zoom) ? - this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) : - this._tryAnimatedPan(center, options.pan); + if (type === 'mousewheel') { + obj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false); - if (moved) { - // prevent resize handler call, the view will refresh after animation anyway - clearTimeout(this._sizeTimer); - return this; - } + } else { + obj.removeEventListener( + type === 'mouseenter' ? 'mouseover' : + type === 'mouseleave' ? 'mouseout' : type, handler, false); } - // animation didn't start, just reset the map view - this._resetView(center, zoom); + } else if ('detachEvent' in obj) { + obj.detachEvent('on' + type, handler); + } - return this; - }, + obj[eventsKey][id] = null; +} - // @method setZoom(zoom: Number, options: Zoom/pan options): this - // Sets the zoom of the map. - setZoom: function (zoom, options) { - if (!this._loaded) { - this._zoom = zoom; - return this; - } - return this.setView(this.getCenter(), zoom, {zoom: options}); - }, +// @function stopPropagation(ev: DOMEvent): this +// Stop the given event from propagation to parent elements. Used inside the listener functions: +// ```js +// L.DomEvent.on(div, 'click', function (ev) { +// L.DomEvent.stopPropagation(ev); +// }); +// ``` +function stopPropagation(e) { + + if (e.stopPropagation) { + e.stopPropagation(); + } else if (e.originalEvent) { // In case of Leaflet event. + e.originalEvent._stopped = true; + } else { + e.cancelBubble = true; + } + skipped(e); - // @method zoomIn(delta?: Number, options?: Zoom options): this - // Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default). - zoomIn: function (delta, options) { - delta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1); - return this.setZoom(this._zoom + delta, options); - }, + return this; +} - // @method zoomOut(delta?: Number, options?: Zoom options): this - // Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default). - zoomOut: function (delta, options) { - delta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1); - return this.setZoom(this._zoom - delta, options); - }, +// @function disableScrollPropagation(el: HTMLElement): this +// Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants). +function disableScrollPropagation(el) { + return addOne(el, 'mousewheel', stopPropagation); +} - // @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this - // Zooms the map while keeping a specified geographical point on the map - // stationary (e.g. used internally for scroll zoom and double-click zoom). - // @alternative - // @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this - // Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary. - setZoomAround: function (latlng, zoom, options) { - var scale = this.getZoomScale(zoom), - viewHalf = this.getSize().divideBy(2), - containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng), +// @function disableClickPropagation(el: HTMLElement): this +// Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`, +// `'mousedown'` and `'touchstart'` events (plus browser variants). +function disableClickPropagation(el) { + on(el, 'mousedown touchstart dblclick', stopPropagation); + addOne(el, 'click', fakeStop); + return this; +} - centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale), - newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset)); +// @function preventDefault(ev: DOMEvent): this +// Prevents the default action of the DOM Event `ev` from happening (such as +// following a link in the href of the a element, or doing a POST request +// with page reload when a `
` is submitted). +// Use it inside listener functions. +function preventDefault(e) { + if (e.preventDefault) { + e.preventDefault(); + } else { + e.returnValue = false; + } + return this; +} - return this.setView(newCenter, zoom, {zoom: options}); - }, +// @function stop(ev): this +// Does `stopPropagation` and `preventDefault` at the same time. +function stop(e) { + preventDefault(e); + stopPropagation(e); + return this; +} - _getBoundsCenterZoom: function (bounds, options) { +// @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point +// Gets normalized mouse position from a DOM event relative to the +// `container` or to the whole page if not specified. +function getMousePosition(e, container) { + if (!container) { + return new Point(e.clientX, e.clientY); + } - options = options || {}; - bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds); + var rect = container.getBoundingClientRect(); - var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]), - paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]), + return new Point( + e.clientX - rect.left - container.clientLeft, + e.clientY - rect.top - container.clientTop); +} - zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR)); +// Chrome on Win scrolls double the pixels as in other platforms (see #4538), +// and Firefox scrolls device pixels, not CSS pixels +var wheelPxFactor = + (win && chrome) ? 2 * window.devicePixelRatio : + gecko ? window.devicePixelRatio : 1; + +// @function getWheelDelta(ev: DOMEvent): Number +// Gets normalized wheel delta from a mousewheel DOM event, in vertical +// pixels scrolled (negative if scrolling down). +// Events from pointing devices without precise scrolling are mapped to +// a best guess of 60 pixels. +function getWheelDelta(e) { + return (edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta + (e.deltaY && e.deltaMode === 0) ? -e.deltaY / wheelPxFactor : // Pixels + (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines + (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages + (e.deltaX || e.deltaZ) ? 0 : // Skip horizontal/depth wheel events + e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels + (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines + e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages + 0; +} - zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom; +var skipEvents = {}; - var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2), +function fakeStop(e) { + // fakes stopPropagation by setting a special event flag, checked/reset with skipped(e) + skipEvents[e.type] = true; +} - swPoint = this.project(bounds.getSouthWest(), zoom), - nePoint = this.project(bounds.getNorthEast(), zoom), - center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom); +function skipped(e) { + var events = skipEvents[e.type]; + // reset when checking, as it's only used in map container and propagates outside of the map + skipEvents[e.type] = false; + return events; +} - return { - center: center, - zoom: zoom - }; - }, +// check if element really left/entered the event target (for mouseenter/mouseleave) +function isExternalTarget(el, e) { - // @method fitBounds(bounds: LatLngBounds, options?: fitBounds options): this - // Sets a map view that contains the given geographical bounds with the - // maximum zoom level possible. - fitBounds: function (bounds, options) { + var related = e.relatedTarget; - bounds = L.latLngBounds(bounds); + if (!related) { return true; } - if (!bounds.isValid()) { - throw new Error('Bounds are not valid.'); + try { + while (related && (related !== el)) { + related = related.parentNode; } + } catch (err) { + return false; + } + return (related !== el); +} - var target = this._getBoundsCenterZoom(bounds, options); - return this.setView(target.center, target.zoom, options); - }, - - // @method fitWorld(options?: fitBounds options): this - // Sets a map view that mostly contains the whole world with the maximum - // zoom level possible. - fitWorld: function (options) { - return this.fitBounds([[-90, -180], [90, 180]], options); - }, +var lastClick; - // @method panTo(latlng: LatLng, options?: Pan options): this - // Pans the map to a given center. - panTo: function (center, options) { // (LatLng) - return this.setView(center, this._zoom, {pan: options}); - }, +// this is a horrible workaround for a bug in Android where a single touch triggers two click events +function filterClick(e, handler) { + var timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)), + elapsed = lastClick && (timeStamp - lastClick); - // @method panBy(offset: Point): this - // Pans the map by a given number of pixels (animated). - panBy: function (offset, options) { - offset = L.point(offset).round(); - options = options || {}; + // are they closer together than 500ms yet more than 100ms? + // Android typically triggers them ~300ms apart while multiple listeners + // on the same event should be triggered far faster; + // or check if click is simulated on the element, and if it is, reject any non-simulated events - if (!offset.x && !offset.y) { - return this.fire('moveend'); - } - // If we pan too far, Chrome gets issues with tiles - // and makes them disappear or appear in the wrong place (slightly offset) #2602 - if (options.animate !== true && !this.getSize().contains(offset)) { - this._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom()); - return this; - } + if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) { + stop(e); + return; + } + lastClick = timeStamp; - if (!this._panAnim) { - this._panAnim = new L.PosAnimation(); + handler(e); +} - this._panAnim.on({ - 'step': this._onPanTransitionStep, - 'end': this._onPanTransitionEnd - }, this); - } - // don't fire movestart if animating inertia - if (!options.noMoveStart) { - this.fire('movestart'); - } + + +var DomEvent = (Object.freeze || Object)({ + on: on, + off: off, + stopPropagation: stopPropagation, + disableScrollPropagation: disableScrollPropagation, + disableClickPropagation: disableClickPropagation, + preventDefault: preventDefault, + stop: stop, + getMousePosition: getMousePosition, + getWheelDelta: getWheelDelta, + fakeStop: fakeStop, + skipped: skipped, + isExternalTarget: isExternalTarget, + addListener: on, + removeListener: off +}); + +/* + * @namespace DomUtil + * + * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model) + * tree, used by Leaflet internally. + * + * Most functions expecting or returning a `HTMLElement` also work for + * SVG elements. The only difference is that classes refer to CSS classes + * in HTML and SVG classes in SVG. + */ - // animate pan unless animate: false specified - if (options.animate !== false) { - L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim'); - var newPos = this._getMapPanePos().subtract(offset).round(); - this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity); - } else { - this._rawPanBy(offset); - this.fire('move').fire('moveend'); - } +// @property TRANSFORM: String +// Vendor-prefixed transform style name (e.g. `'webkitTransform'` for WebKit). +var TRANSFORM = testProp( + ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']); - return this; - }, +// webkitTransition comes first because some browser versions that drop vendor prefix don't do +// the same for the transitionend event, in particular the Android 4.1 stock browser - // @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this - // Sets the view of the map (geographical center and zoom) performing a smooth - // pan-zoom animation. - flyTo: function (targetCenter, targetZoom, options) { +// @property TRANSITION: String +// Vendor-prefixed transition style name. +var TRANSITION = testProp( + ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']); - options = options || {}; - if (options.animate === false || !L.Browser.any3d) { - return this.setView(targetCenter, targetZoom, options); - } +// @property TRANSITION_END: String +// Vendor-prefixed transitionend event name. +var TRANSITION_END = + TRANSITION === 'webkitTransition' || TRANSITION === 'OTransition' ? TRANSITION + 'End' : 'transitionend'; - this._stop(); - var from = this.project(this.getCenter()), - to = this.project(targetCenter), - size = this.getSize(), - startZoom = this._zoom; +// @function get(id: String|HTMLElement): HTMLElement +// Returns an element given its DOM id, or returns the element itself +// if it was passed directly. +function get(id) { + return typeof id === 'string' ? document.getElementById(id) : id; +} - targetCenter = L.latLng(targetCenter); - targetZoom = targetZoom === undefined ? startZoom : targetZoom; +// @function getStyle(el: HTMLElement, styleAttrib: String): String +// Returns the value for a certain style attribute on an element, +// including computed values or values set through CSS. +function getStyle(el, style) { + var value = el.style[style] || (el.currentStyle && el.currentStyle[style]); - var w0 = Math.max(size.x, size.y), - w1 = w0 * this.getZoomScale(startZoom, targetZoom), - u1 = (to.distanceTo(from)) || 1, - rho = 1.42, - rho2 = rho * rho; + if ((!value || value === 'auto') && document.defaultView) { + var css = document.defaultView.getComputedStyle(el, null); + value = css ? css[style] : null; + } + return value === 'auto' ? null : value; +} - function r(i) { - var s1 = i ? -1 : 1, - s2 = i ? w1 : w0, - t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1, - b1 = 2 * s2 * rho2 * u1, - b = t1 / b1, - sq = Math.sqrt(b * b + 1) - b; +// @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement +// Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element. +function create$1(tagName, className, container) { + var el = document.createElement(tagName); + el.className = className || ''; - // workaround for floating point precision bug when sq = 0, log = -Infinite, - // thus triggering an infinite loop in flyTo - var log = sq < 0.000000001 ? -18 : Math.log(sq); + if (container) { + container.appendChild(el); + } + return el; +} - return log; - } +// @function remove(el: HTMLElement) +// Removes `el` from its parent element +function remove(el) { + var parent = el.parentNode; + if (parent) { + parent.removeChild(el); + } +} - function sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; } - function cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; } - function tanh(n) { return sinh(n) / cosh(n); } +// @function empty(el: HTMLElement) +// Removes all of `el`'s children elements from `el` +function empty(el) { + while (el.firstChild) { + el.removeChild(el.firstChild); + } +} - var r0 = r(0); +// @function toFront(el: HTMLElement) +// Makes `el` the last child of its parent, so it renders in front of the other children. +function toFront(el) { + var parent = el.parentNode; + if (parent.lastChild !== el) { + parent.appendChild(el); + } +} - function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); } - function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; } +// @function toBack(el: HTMLElement) +// Makes `el` the first child of its parent, so it renders behind the other children. +function toBack(el) { + var parent = el.parentNode; + if (parent.firstChild !== el) { + parent.insertBefore(el, parent.firstChild); + } +} - function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); } +// @function hasClass(el: HTMLElement, name: String): Boolean +// Returns `true` if the element's class attribute contains `name`. +function hasClass(el, name) { + if (el.classList !== undefined) { + return el.classList.contains(name); + } + var className = getClass(el); + return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className); +} - var start = Date.now(), - S = (r(1) - r0) / rho, - duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8; +// @function addClass(el: HTMLElement, name: String) +// Adds `name` to the element's class attribute. +function addClass(el, name) { + if (el.classList !== undefined) { + var classes = splitWords(name); + for (var i = 0, len = classes.length; i < len; i++) { + el.classList.add(classes[i]); + } + } else if (!hasClass(el, name)) { + var className = getClass(el); + setClass(el, (className ? className + ' ' : '') + name); + } +} - function frame() { - var t = (Date.now() - start) / duration, - s = easeOut(t) * S; +// @function removeClass(el: HTMLElement, name: String) +// Removes `name` from the element's class attribute. +function removeClass(el, name) { + if (el.classList !== undefined) { + el.classList.remove(name); + } else { + setClass(el, trim((' ' + getClass(el) + ' ').replace(' ' + name + ' ', ' '))); + } +} - if (t <= 1) { - this._flyToFrame = L.Util.requestAnimFrame(frame, this); +// @function setClass(el: HTMLElement, name: String) +// Sets the element's class. +function setClass(el, name) { + if (el.className.baseVal === undefined) { + el.className = name; + } else { + // in case of SVG element + el.className.baseVal = name; + } +} - this._move( - this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom), - this.getScaleZoom(w0 / w(s), startZoom), - {flyTo: true}); +// @function getClass(el: HTMLElement): String +// Returns the element's class. +function getClass(el) { + return el.className.baseVal === undefined ? el.className : el.className.baseVal; +} - } else { - this - ._move(targetCenter, targetZoom) - ._moveEnd(true); - } - } +// @function setOpacity(el: HTMLElement, opacity: Number) +// Set the opacity of an element (including old IE support). +// `opacity` must be a number from `0` to `1`. +function setOpacity(el, value) { + if ('opacity' in el.style) { + el.style.opacity = value; + } else if ('filter' in el.style) { + _setOpacityIE(el, value); + } +} - this._moveStart(true); +function _setOpacityIE(el, value) { + var filter = false, + filterName = 'DXImageTransform.Microsoft.Alpha'; + + // filters collection throws an error if we try to retrieve a filter that doesn't exist + try { + filter = el.filters.item(filterName); + } catch (e) { + // don't set opacity to 1 if we haven't already set an opacity, + // it isn't needed and breaks transparent pngs. + if (value === 1) { return; } + } - frame.call(this); - return this; - }, + value = Math.round(value * 100); - // @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this - // Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto), - // but takes a bounds parameter like [`fitBounds`](#map-fitbounds). - flyToBounds: function (bounds, options) { - var target = this._getBoundsCenterZoom(bounds, options); - return this.flyTo(target.center, target.zoom, options); - }, + if (filter) { + filter.Enabled = (value !== 100); + filter.Opacity = value; + } else { + el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')'; + } +} - // @method setMaxBounds(bounds: Bounds): this - // Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option). - setMaxBounds: function (bounds) { - bounds = L.latLngBounds(bounds); +// @function testProp(props: String[]): String|false +// Goes through the array of style names and returns the first name +// that is a valid style name for an element. If no such name is found, +// it returns false. Useful for vendor-prefixed styles like `transform`. +function testProp(props) { + var style = document.documentElement.style; - if (!bounds.isValid()) { - this.options.maxBounds = null; - return this.off('moveend', this._panInsideMaxBounds); - } else if (this.options.maxBounds) { - this.off('moveend', this._panInsideMaxBounds); + for (var i = 0; i < props.length; i++) { + if (props[i] in style) { + return props[i]; } + } + return false; +} - this.options.maxBounds = bounds; +// @function setTransform(el: HTMLElement, offset: Point, scale?: Number) +// Resets the 3D CSS transform of `el` so it is translated by `offset` pixels +// and optionally scaled by `scale`. Does not have an effect if the +// browser doesn't support 3D CSS transforms. +function setTransform(el, offset, scale) { + var pos = offset || new Point(0, 0); + + el.style[TRANSFORM] = + (ie3d ? + 'translate(' + pos.x + 'px,' + pos.y + 'px)' : + 'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') + + (scale ? ' scale(' + scale + ')' : ''); +} - if (this._loaded) { - this._panInsideMaxBounds(); - } +// @function setPosition(el: HTMLElement, position: Point) +// Sets the position of `el` to coordinates specified by `position`, +// using CSS translate or top/left positioning depending on the browser +// (used by Leaflet internally to position its layers). +function setPosition(el, point) { - return this.on('moveend', this._panInsideMaxBounds); - }, + /*eslint-disable */ + el._leaflet_pos = point; + /*eslint-enable */ - // @method setMinZoom(zoom: Number): this - // Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option). - setMinZoom: function (zoom) { - this.options.minZoom = zoom; + if (any3d) { + setTransform(el, point); + } else { + el.style.left = point.x + 'px'; + el.style.top = point.y + 'px'; + } +} - if (this._loaded && this.getZoom() < this.options.minZoom) { - return this.setZoom(zoom); - } +// @function getPosition(el: HTMLElement): Point +// Returns the coordinates of an element previously positioned with setPosition. +function getPosition(el) { + // this method is only used for elements previously positioned using setPosition, + // so it's safe to cache the position for performance - return this; - }, + return el._leaflet_pos || new Point(0, 0); +} - // @method setMaxZoom(zoom: Number): this - // Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option). - setMaxZoom: function (zoom) { - this.options.maxZoom = zoom; +// @function disableTextSelection() +// Prevents the user from generating `selectstart` DOM events, usually generated +// when the user drags the mouse through a page with text. Used internally +// by Leaflet to override the behaviour of any click-and-drag interaction on +// the map. Affects drag interactions on the whole document. + +// @function enableTextSelection() +// Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection). +var disableTextSelection; +var enableTextSelection; +var _userSelect; +if ('onselectstart' in document) { + disableTextSelection = function () { + on(window, 'selectstart', preventDefault); + }; + enableTextSelection = function () { + off(window, 'selectstart', preventDefault); + }; +} else { + var userSelectProperty = testProp( + ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']); - if (this._loaded && (this.getZoom() > this.options.maxZoom)) { - return this.setZoom(zoom); + disableTextSelection = function () { + if (userSelectProperty) { + var style = document.documentElement.style; + _userSelect = style[userSelectProperty]; + style[userSelectProperty] = 'none'; + } + }; + enableTextSelection = function () { + if (userSelectProperty) { + document.documentElement.style[userSelectProperty] = _userSelect; + _userSelect = undefined; } + }; +} - return this; - }, +// @function disableImageDrag() +// As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but +// for `dragstart` DOM events, usually generated when the user drags an image. +function disableImageDrag() { + on(window, 'dragstart', preventDefault); +} - // @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this - // Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any. - panInsideBounds: function (bounds, options) { - this._enforcingBounds = true; - var center = this.getCenter(), - newCenter = this._limitCenter(center, this._zoom, L.latLngBounds(bounds)); +// @function enableImageDrag() +// Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection). +function enableImageDrag() { + off(window, 'dragstart', preventDefault); +} - if (!center.equals(newCenter)) { - this.panTo(newCenter, options); - } +var _outlineElement; +var _outlineStyle; +// @function preventOutline(el: HTMLElement) +// Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline) +// of the element `el` invisible. Used internally by Leaflet to prevent +// focusable elements from displaying an outline when the user performs a +// drag interaction on them. +function preventOutline(element) { + while (element.tabIndex === -1) { + element = element.parentNode; + } + if (!element.style) { return; } + restoreOutline(); + _outlineElement = element; + _outlineStyle = element.style.outline; + element.style.outline = 'none'; + on(window, 'keydown', restoreOutline); +} - this._enforcingBounds = false; - return this; - }, +// @function restoreOutline() +// Cancels the effects of a previous [`L.DomUtil.preventOutline`](). +function restoreOutline() { + if (!_outlineElement) { return; } + _outlineElement.style.outline = _outlineStyle; + _outlineElement = undefined; + _outlineStyle = undefined; + off(window, 'keydown', restoreOutline); +} + + +var DomUtil = (Object.freeze || Object)({ + TRANSFORM: TRANSFORM, + TRANSITION: TRANSITION, + TRANSITION_END: TRANSITION_END, + get: get, + getStyle: getStyle, + create: create$1, + remove: remove, + empty: empty, + toFront: toFront, + toBack: toBack, + hasClass: hasClass, + addClass: addClass, + removeClass: removeClass, + setClass: setClass, + getClass: getClass, + setOpacity: setOpacity, + testProp: testProp, + setTransform: setTransform, + setPosition: setPosition, + getPosition: getPosition, + disableTextSelection: disableTextSelection, + enableTextSelection: enableTextSelection, + disableImageDrag: disableImageDrag, + enableImageDrag: enableImageDrag, + preventOutline: preventOutline, + restoreOutline: restoreOutline +}); + +/* + * @class PosAnimation + * @aka L.PosAnimation + * @inherits Evented + * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9. + * + * @example + * ```js + * var fx = new L.PosAnimation(); + * fx.run(el, [300, 500], 0.5); + * ``` + * + * @constructor L.PosAnimation() + * Creates a `PosAnimation` object. + * + */ + +var PosAnimation = Evented.extend({ + + // @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number) + // Run an animation of a given element to a new position, optionally setting + // duration in seconds (`0.25` by default) and easing linearity factor (3rd + // argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1), + // `0.5` by default). + run: function (el, newPos, duration, easeLinearity) { + this.stop(); + + this._el = el; + this._inProgress = true; + this._duration = duration || 0.25; + this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2); + + this._startPos = getPosition(el); + this._offset = newPos.subtract(this._startPos); + this._startTime = +new Date(); + + // @event start: Event + // Fired when the animation starts + this.fire('start'); + + this._animate(); + }, + + // @method stop() + // Stops the animation (if currently running). + stop: function () { + if (!this._inProgress) { return; } + + this._step(true); + this._complete(); + }, + + _animate: function () { + // animation loop + this._animId = requestAnimFrame(this._animate, this); + this._step(); + }, + + _step: function (round) { + var elapsed = (+new Date()) - this._startTime, + duration = this._duration * 1000; + + if (elapsed < duration) { + this._runFrame(this._easeOut(elapsed / duration), round); + } else { + this._runFrame(1); + this._complete(); + } + }, + + _runFrame: function (progress, round) { + var pos = this._startPos.add(this._offset.multiplyBy(progress)); + if (round) { + pos._round(); + } + setPosition(this._el, pos); + + // @event step: Event + // Fired continuously during the animation. + this.fire('step'); + }, + + _complete: function () { + cancelAnimFrame(this._animId); + + this._inProgress = false; + // @event end: Event + // Fired when the animation ends. + this.fire('end'); + }, + + _easeOut: function (t) { + return 1 - Math.pow(1 - t, this._easeOutPower); + } +}); + +/* + * @class Map + * @aka L.Map + * @inherits Evented + * + * The central class of the API — it is used to create a map on a page and manipulate it. + * + * @example + * + * ```js + * // initialize the map on the "map" div with a given center and zoom + * var map = L.map('map', { + * center: [51.505, -0.09], + * zoom: 13 + * }); + * ``` + * + */ - // @method invalidateSize(options: Zoom/Pan options): this - // Checks if the map container size changed and updates the map if so — - // call it after you've changed the map size dynamically, also animating - // pan by default. If `options.pan` is `false`, panning will not occur. - // If `options.debounceMoveend` is `true`, it will delay `moveend` event so - // that it doesn't happen often even if the method is called many - // times in a row. +var Map = Evented.extend({ - // @alternative - // @method invalidateSize(animate: Boolean): this - // Checks if the map container size changed and updates the map if so — - // call it after you've changed the map size dynamically, also animating - // pan by default. - invalidateSize: function (options) { - if (!this._loaded) { return this; } + options: { + // @section Map State Options + // @option crs: CRS = L.CRS.EPSG3857 + // The [Coordinate Reference System](#crs) to use. Don't change this if you're not + // sure what it means. + crs: EPSG3857, - options = L.extend({ - animate: false, - pan: true - }, options === true ? {animate: true} : options); + // @option center: LatLng = undefined + // Initial geographic center of the map + center: undefined, - var oldSize = this.getSize(); - this._sizeChanged = true; - this._lastCenter = null; + // @option zoom: Number = undefined + // Initial map zoom level + zoom: undefined, - var newSize = this.getSize(), - oldCenter = oldSize.divideBy(2).round(), - newCenter = newSize.divideBy(2).round(), - offset = oldCenter.subtract(newCenter); + // @option minZoom: Number = * + // Minimum zoom level of the map. + // If not specified and at least one `GridLayer` or `TileLayer` is in the map, + // the lowest of their `minZoom` options will be used instead. + minZoom: undefined, - if (!offset.x && !offset.y) { return this; } + // @option maxZoom: Number = * + // Maximum zoom level of the map. + // If not specified and at least one `GridLayer` or `TileLayer` is in the map, + // the highest of their `maxZoom` options will be used instead. + maxZoom: undefined, - if (options.animate && options.pan) { - this.panBy(offset); + // @option layers: Layer[] = [] + // Array of layers that will be added to the map initially + layers: [], - } else { - if (options.pan) { - this._rawPanBy(offset); - } + // @option maxBounds: LatLngBounds = null + // When this option is set, the map restricts the view to the given + // geographical bounds, bouncing the user back if the user tries to pan + // outside the view. To set the restriction dynamically, use + // [`setMaxBounds`](#map-setmaxbounds) method. + maxBounds: undefined, - this.fire('move'); + // @option renderer: Renderer = * + // The default method for drawing vector layers on the map. `L.SVG` + // or `L.Canvas` by default depending on browser support. + renderer: undefined, - if (options.debounceMoveend) { - clearTimeout(this._sizeTimer); - this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200); - } else { - this.fire('moveend'); - } - } - // @section Map state change events - // @event resize: ResizeEvent - // Fired when the map is resized. - return this.fire('resize', { - oldSize: oldSize, - newSize: newSize - }); - }, + // @section Animation Options + // @option zoomAnimation: Boolean = true + // Whether the map zoom animation is enabled. By default it's enabled + // in all browsers that support CSS3 Transitions except Android. + zoomAnimation: true, - // @section Methods for modifying map state - // @method stop(): this - // Stops the currently running `panTo` or `flyTo` animation, if any. - stop: function () { - this.setZoom(this._limitZoom(this._zoom)); - if (!this.options.zoomSnap) { - this.fire('viewreset'); - } - return this._stop(); - }, + // @option zoomAnimationThreshold: Number = 4 + // Won't animate zoom if the zoom difference exceeds this value. + zoomAnimationThreshold: 4, - // @section Geolocation methods - // @method locate(options?: Locate options): this - // Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound) - // event with location data on success or a [`locationerror`](#map-locationerror) event on failure, - // and optionally sets the map view to the user's location with respect to - // detection accuracy (or to the world view if geolocation failed). - // Note that, if your page doesn't use HTTPS, this method will fail in - // modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins)) - // See `Locate options` for more details. - locate: function (options) { + // @option fadeAnimation: Boolean = true + // Whether the tile fade animation is enabled. By default it's enabled + // in all browsers that support CSS3 Transitions except Android. + fadeAnimation: true, - options = this._locateOptions = L.extend({ - timeout: 10000, - watch: false - // setView: false - // maxZoom: - // maximumAge: 0 - // enableHighAccuracy: false - }, options); + // @option markerZoomAnimation: Boolean = true + // Whether markers animate their zoom with the zoom animation, if disabled + // they will disappear for the length of the animation. By default it's + // enabled in all browsers that support CSS3 Transitions except Android. + markerZoomAnimation: true, - if (!('geolocation' in navigator)) { - this._handleGeolocationError({ - code: 0, - message: 'Geolocation not supported.' - }); - return this; - } + // @option transform3DLimit: Number = 2^23 + // Defines the maximum size of a CSS translation transform. The default + // value should not be changed unless a web browser positions layers in + // the wrong place after doing a large `panBy`. + transform3DLimit: 8388608, // Precision limit of a 32-bit float - var onResponse = L.bind(this._handleGeolocationResponse, this), - onError = L.bind(this._handleGeolocationError, this); + // @section Interaction Options + // @option zoomSnap: Number = 1 + // Forces the map's zoom level to always be a multiple of this, particularly + // right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom. + // By default, the zoom level snaps to the nearest integer; lower values + // (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0` + // means the zoom level will not be snapped after `fitBounds` or a pinch-zoom. + zoomSnap: 1, - if (options.watch) { - this._locationWatchId = - navigator.geolocation.watchPosition(onResponse, onError, options); - } else { - navigator.geolocation.getCurrentPosition(onResponse, onError, options); - } - return this; - }, + // @option zoomDelta: Number = 1 + // Controls how much the map's zoom level will change after a + // [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+` + // or `-` on the keyboard, or using the [zoom controls](#control-zoom). + // Values smaller than `1` (e.g. `0.5`) allow for greater granularity. + zoomDelta: 1, - // @method stopLocate(): this - // Stops watching location previously initiated by `map.locate({watch: true})` - // and aborts resetting the map view if map.locate was called with - // `{setView: true}`. - stopLocate: function () { - if (navigator.geolocation && navigator.geolocation.clearWatch) { - navigator.geolocation.clearWatch(this._locationWatchId); - } - if (this._locateOptions) { - this._locateOptions.setView = false; - } - return this; + // @option trackResize: Boolean = true + // Whether the map automatically handles browser window resize to update itself. + trackResize: true }, - _handleGeolocationError: function (error) { - var c = error.code, - message = error.message || - (c === 1 ? 'permission denied' : - (c === 2 ? 'position unavailable' : 'timeout')); + initialize: function (id, options) { // (HTMLElement or String, Object) + options = setOptions(this, options); - if (this._locateOptions.setView && !this._loaded) { - this.fitWorld(); - } + this._initContainer(id); + this._initLayout(); - // @section Location events - // @event locationerror: ErrorEvent - // Fired when geolocation (using the [`locate`](#map-locate) method) failed. - this.fire('locationerror', { - code: c, - message: 'Geolocation error: ' + message + '.' - }); - }, + // hack for https://github.com/Leaflet/Leaflet/issues/1980 + this._onResize = bind(this._onResize, this); - _handleGeolocationResponse: function (pos) { - var lat = pos.coords.latitude, - lng = pos.coords.longitude, - latlng = new L.LatLng(lat, lng), - bounds = latlng.toBounds(pos.coords.accuracy), - options = this._locateOptions; + this._initEvents(); - if (options.setView) { - var zoom = this.getBoundsZoom(bounds); - this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom); + if (options.maxBounds) { + this.setMaxBounds(options.maxBounds); } - var data = { - latlng: latlng, - bounds: bounds, - timestamp: pos.timestamp - }; - - for (var i in pos.coords) { - if (typeof pos.coords[i] === 'number') { - data[i] = pos.coords[i]; - } + if (options.zoom !== undefined) { + this._zoom = this._limitZoom(options.zoom); } - // @event locationfound: LocationEvent - // Fired when geolocation (using the [`locate`](#map-locate) method) - // went successfully. - this.fire('locationfound', data); - }, + if (options.center && options.zoom !== undefined) { + this.setView(toLatLng(options.center), options.zoom, {reset: true}); + } - // TODO handler.addTo - // TODO Appropiate docs section? - // @section Other Methods - // @method addHandler(name: String, HandlerClass: Function): this - // Adds a new `Handler` to the map, given its name and constructor function. - addHandler: function (name, HandlerClass) { - if (!HandlerClass) { return this; } + this._handlers = []; + this._layers = {}; + this._zoomBoundLayers = {}; + this._sizeChanged = true; - var handler = this[name] = new HandlerClass(this); + this.callInitHooks(); - this._handlers.push(handler); + // don't animate on browsers without hardware-accelerated transitions or old Android/Opera + this._zoomAnimated = TRANSITION && any3d && !mobileOpera && + this.options.zoomAnimation; - if (this.options[name]) { - handler.enable(); + // zoom transitions run with the same duration for all layers, so if one of transitionend events + // happens after starting zoom animation (propagating to the map pane), we know that it ended globally + if (this._zoomAnimated) { + this._createAnimProxy(); + on(this._proxy, TRANSITION_END, this._catchTransitionEnd, this); } - return this; + this._addLayers(this.options.layers); }, - // @method remove(): this - // Destroys the map and clears all related event listeners. - remove: function () { - this._initEvents(true); + // @section Methods for modifying map state - if (this._containerId !== this._container._leaflet_id) { - throw new Error('Map container is being reused by another instance'); - } + // @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this + // Sets the view of the map (geographical center and zoom) with the given + // animation options. + setView: function (center, zoom, options) { - try { - // throws error in IE6-8 - delete this._container._leaflet_id; - delete this._containerId; - } catch (e) { - /*eslint-disable */ - this._container._leaflet_id = undefined; - /*eslint-enable */ - this._containerId = undefined; - } + zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom); + center = this._limitCenter(toLatLng(center), zoom, this.options.maxBounds); + options = options || {}; - L.DomUtil.remove(this._mapPane); + this._stop(); - if (this._clearControlPos) { - this._clearControlPos(); - } + if (this._loaded && !options.reset && options !== true) { - this._clearHandlers(); + if (options.animate !== undefined) { + options.zoom = extend({animate: options.animate}, options.zoom); + options.pan = extend({animate: options.animate, duration: options.duration}, options.pan); + } - if (this._loaded) { - // @section Map state change events - // @event unload: Event - // Fired when the map is destroyed with [remove](#map-remove) method. - this.fire('unload'); - } + // try animating pan or zoom + var moved = (this._zoom !== zoom) ? + this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) : + this._tryAnimatedPan(center, options.pan); - for (var i in this._layers) { - this._layers[i].remove(); + if (moved) { + // prevent resize handler call, the view will refresh after animation anyway + clearTimeout(this._sizeTimer); + return this; + } } + // animation didn't start, just reset the map view + this._resetView(center, zoom); + return this; }, - // @section Other Methods - // @method createPane(name: String, container?: HTMLElement): HTMLElement - // Creates a new [map pane](#map-pane) with the given name if it doesn't exist already, - // then returns it. The pane is created as a children of `container`, or - // as a children of the main map pane if not set. - createPane: function (name, container) { - var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''), - pane = L.DomUtil.create('div', className, container || this._mapPane); - - if (name) { - this._panes[name] = pane; + // @method setZoom(zoom: Number, options?: Zoom/pan options): this + // Sets the zoom of the map. + setZoom: function (zoom, options) { + if (!this._loaded) { + this._zoom = zoom; + return this; } - return pane; + return this.setView(this.getCenter(), zoom, {zoom: options}); }, - // @section Methods for Getting Map State - - // @method getCenter(): LatLng - // Returns the geographical center of the map view - getCenter: function () { - this._checkIfLoaded(); - - if (this._lastCenter && !this._moved()) { - return this._lastCenter; - } - return this.layerPointToLatLng(this._getCenterLayerPoint()); + // @method zoomIn(delta?: Number, options?: Zoom options): this + // Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default). + zoomIn: function (delta, options) { + delta = delta || (any3d ? this.options.zoomDelta : 1); + return this.setZoom(this._zoom + delta, options); }, - // @method getZoom(): Number - // Returns the current zoom level of the map view - getZoom: function () { - return this._zoom; + // @method zoomOut(delta?: Number, options?: Zoom options): this + // Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default). + zoomOut: function (delta, options) { + delta = delta || (any3d ? this.options.zoomDelta : 1); + return this.setZoom(this._zoom - delta, options); }, - // @method getBounds(): LatLngBounds - // Returns the geographical bounds visible in the current map view - getBounds: function () { - var bounds = this.getPixelBounds(), - sw = this.unproject(bounds.getBottomLeft()), - ne = this.unproject(bounds.getTopRight()); + // @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this + // Zooms the map while keeping a specified geographical point on the map + // stationary (e.g. used internally for scroll zoom and double-click zoom). + // @alternative + // @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this + // Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary. + setZoomAround: function (latlng, zoom, options) { + var scale = this.getZoomScale(zoom), + viewHalf = this.getSize().divideBy(2), + containerPoint = latlng instanceof Point ? latlng : this.latLngToContainerPoint(latlng), - return new L.LatLngBounds(sw, ne); - }, + centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale), + newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset)); - // @method getMinZoom(): Number - // Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default. - getMinZoom: function () { - return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom; + return this.setView(newCenter, zoom, {zoom: options}); }, - // @method getMaxZoom(): Number - // Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers). - getMaxZoom: function () { - return this.options.maxZoom === undefined ? - (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) : - this.options.maxZoom; - }, + _getBoundsCenterZoom: function (bounds, options) { - // @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean): Number - // Returns the maximum zoom level on which the given bounds fit to the map - // view in its entirety. If `inside` (optional) is set to `true`, the method - // instead returns the minimum zoom level on which the map view fits into - // the given bounds in its entirety. - getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number - bounds = L.latLngBounds(bounds); - padding = L.point(padding || [0, 0]); + options = options || {}; + bounds = bounds.getBounds ? bounds.getBounds() : toLatLngBounds(bounds); - var zoom = this.getZoom() || 0, - min = this.getMinZoom(), - max = this.getMaxZoom(), - nw = bounds.getNorthWest(), - se = bounds.getSouthEast(), - size = this.getSize().subtract(padding), - boundsSize = L.bounds(this.project(se, zoom), this.project(nw, zoom)).getSize(), - snap = L.Browser.any3d ? this.options.zoomSnap : 1; + var paddingTL = toPoint(options.paddingTopLeft || options.padding || [0, 0]), + paddingBR = toPoint(options.paddingBottomRight || options.padding || [0, 0]), - var scale = Math.min(size.x / boundsSize.x, size.y / boundsSize.y); - zoom = this.getScaleZoom(scale, zoom); + zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR)); - if (snap) { - zoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level - zoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap; - } + zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom; - return Math.max(min, Math.min(max, zoom)); - }, + if (zoom === Infinity) { + return { + center: bounds.getCenter(), + zoom: zoom + }; + } - // @method getSize(): Point - // Returns the current size of the map container (in pixels). - getSize: function () { - if (!this._size || this._sizeChanged) { - this._size = new L.Point( - this._container.clientWidth || 0, - this._container.clientHeight || 0); + var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2), - this._sizeChanged = false; - } - return this._size.clone(); - }, + swPoint = this.project(bounds.getSouthWest(), zoom), + nePoint = this.project(bounds.getNorthEast(), zoom), + center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom); - // @method getPixelBounds(): Bounds - // Returns the bounds of the current map view in projected pixel - // coordinates (sometimes useful in layer and overlay implementations). - getPixelBounds: function (center, zoom) { - var topLeftPoint = this._getTopLeftPoint(center, zoom); - return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize())); + return { + center: center, + zoom: zoom + }; }, - // TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to - // the map pane? "left point of the map layer" can be confusing, specially - // since there can be negative offsets. - // @method getPixelOrigin(): Point - // Returns the projected pixel coordinates of the top left point of - // the map layer (useful in custom layer and overlay implementations). - getPixelOrigin: function () { - this._checkIfLoaded(); - return this._pixelOrigin; - }, + // @method fitBounds(bounds: LatLngBounds, options?: fitBounds options): this + // Sets a map view that contains the given geographical bounds with the + // maximum zoom level possible. + fitBounds: function (bounds, options) { - // @method getPixelWorldBounds(zoom?: Number): Bounds - // Returns the world's bounds in pixel coordinates for zoom level `zoom`. - // If `zoom` is omitted, the map's current zoom level is used. - getPixelWorldBounds: function (zoom) { - return this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom); - }, + bounds = toLatLngBounds(bounds); - // @section Other Methods + if (!bounds.isValid()) { + throw new Error('Bounds are not valid.'); + } - // @method getPane(pane: String|HTMLElement): HTMLElement - // Returns a [map pane](#map-pane), given its name or its HTML element (its identity). - getPane: function (pane) { - return typeof pane === 'string' ? this._panes[pane] : pane; + var target = this._getBoundsCenterZoom(bounds, options); + return this.setView(target.center, target.zoom, options); }, - // @method getPanes(): Object - // Returns a plain object containing the names of all [panes](#map-pane) as keys and - // the panes as values. - getPanes: function () { - return this._panes; + // @method fitWorld(options?: fitBounds options): this + // Sets a map view that mostly contains the whole world with the maximum + // zoom level possible. + fitWorld: function (options) { + return this.fitBounds([[-90, -180], [90, 180]], options); }, - // @method getContainer: HTMLElement - // Returns the HTML element that contains the map. - getContainer: function () { - return this._container; + // @method panTo(latlng: LatLng, options?: Pan options): this + // Pans the map to a given center. + panTo: function (center, options) { // (LatLng) + return this.setView(center, this._zoom, {pan: options}); }, + // @method panBy(offset: Point, options?: Pan options): this + // Pans the map by a given number of pixels (animated). + panBy: function (offset, options) { + offset = toPoint(offset).round(); + options = options || {}; - // @section Conversion Methods + if (!offset.x && !offset.y) { + return this.fire('moveend'); + } + // If we pan too far, Chrome gets issues with tiles + // and makes them disappear or appear in the wrong place (slightly offset) #2602 + if (options.animate !== true && !this.getSize().contains(offset)) { + this._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom()); + return this; + } - // @method getZoomScale(toZoom: Number, fromZoom: Number): Number - // Returns the scale factor to be applied to a map transition from zoom level - // `fromZoom` to `toZoom`. Used internally to help with zoom animations. - getZoomScale: function (toZoom, fromZoom) { - // TODO replace with universal implementation after refactoring projections - var crs = this.options.crs; - fromZoom = fromZoom === undefined ? this._zoom : fromZoom; - return crs.scale(toZoom) / crs.scale(fromZoom); - }, + if (!this._panAnim) { + this._panAnim = new PosAnimation(); - // @method getScaleZoom(scale: Number, fromZoom: Number): Number - // Returns the zoom level that the map would end up at, if it is at `fromZoom` - // level and everything is scaled by a factor of `scale`. Inverse of - // [`getZoomScale`](#map-getZoomScale). - getScaleZoom: function (scale, fromZoom) { - var crs = this.options.crs; - fromZoom = fromZoom === undefined ? this._zoom : fromZoom; - var zoom = crs.zoom(scale * crs.scale(fromZoom)); - return isNaN(zoom) ? Infinity : zoom; - }, + this._panAnim.on({ + 'step': this._onPanTransitionStep, + 'end': this._onPanTransitionEnd + }, this); + } - // @method project(latlng: LatLng, zoom: Number): Point - // Projects a geographical coordinate `LatLng` according to the projection - // of the map's CRS, then scales it according to `zoom` and the CRS's - // `Transformation`. The result is pixel coordinate relative to - // the CRS origin. - project: function (latlng, zoom) { - zoom = zoom === undefined ? this._zoom : zoom; - return this.options.crs.latLngToPoint(L.latLng(latlng), zoom); - }, + // don't fire movestart if animating inertia + if (!options.noMoveStart) { + this.fire('movestart'); + } - // @method unproject(point: Point, zoom: Number): LatLng - // Inverse of [`project`](#map-project). - unproject: function (point, zoom) { - zoom = zoom === undefined ? this._zoom : zoom; - return this.options.crs.pointToLatLng(L.point(point), zoom); - }, + // animate pan unless animate: false specified + if (options.animate !== false) { + addClass(this._mapPane, 'leaflet-pan-anim'); - // @method layerPointToLatLng(point: Point): LatLng - // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin), - // returns the corresponding geographical coordinate (for the current zoom level). - layerPointToLatLng: function (point) { - var projectedPoint = L.point(point).add(this.getPixelOrigin()); - return this.unproject(projectedPoint); - }, + var newPos = this._getMapPanePos().subtract(offset).round(); + this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity); + } else { + this._rawPanBy(offset); + this.fire('move').fire('moveend'); + } - // @method latLngToLayerPoint(latlng: LatLng): Point - // Given a geographical coordinate, returns the corresponding pixel coordinate - // relative to the [origin pixel](#map-getpixelorigin). - latLngToLayerPoint: function (latlng) { - var projectedPoint = this.project(L.latLng(latlng))._round(); - return projectedPoint._subtract(this.getPixelOrigin()); + return this; }, - // @method wrapLatLng(latlng: LatLng): LatLng - // Returns a `LatLng` where `lat` and `lng` has been wrapped according to the - // map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the - // CRS's bounds. - // By default this means longitude is wrapped around the dateline so its - // value is between -180 and +180 degrees. - wrapLatLng: function (latlng) { - return this.options.crs.wrapLatLng(L.latLng(latlng)); - }, + // @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this + // Sets the view of the map (geographical center and zoom) performing a smooth + // pan-zoom animation. + flyTo: function (targetCenter, targetZoom, options) { - // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds - // Returns a `LatLngBounds` with the same size as the given one, ensuring that - // its center is within the CRS's bounds. - // By default this means the center longitude is wrapped around the dateline so its - // value is between -180 and +180 degrees, and the majority of the bounds - // overlaps the CRS's bounds. - wrapLatLngBounds: function (latlng) { - return this.options.crs.wrapLatLngBounds(L.latLngBounds(latlng)); - }, + options = options || {}; + if (options.animate === false || !any3d) { + return this.setView(targetCenter, targetZoom, options); + } - // @method distance(latlng1: LatLng, latlng2: LatLng): Number - // Returns the distance between two geographical coordinates according to - // the map's CRS. By default this measures distance in meters. - distance: function (latlng1, latlng2) { - return this.options.crs.distance(L.latLng(latlng1), L.latLng(latlng2)); - }, + this._stop(); - // @method containerPointToLayerPoint(point: Point): Point - // Given a pixel coordinate relative to the map container, returns the corresponding - // pixel coordinate relative to the [origin pixel](#map-getpixelorigin). - containerPointToLayerPoint: function (point) { // (Point) - return L.point(point).subtract(this._getMapPanePos()); - }, + var from = this.project(this.getCenter()), + to = this.project(targetCenter), + size = this.getSize(), + startZoom = this._zoom; - // @method layerPointToContainerPoint(point: Point): Point - // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin), - // returns the corresponding pixel coordinate relative to the map container. - layerPointToContainerPoint: function (point) { // (Point) - return L.point(point).add(this._getMapPanePos()); - }, + targetCenter = toLatLng(targetCenter); + targetZoom = targetZoom === undefined ? startZoom : targetZoom; - // @method containerPointToLatLng(point: Point): LatLng - // Given a pixel coordinate relative to the map container, returns - // the corresponding geographical coordinate (for the current zoom level). - containerPointToLatLng: function (point) { - var layerPoint = this.containerPointToLayerPoint(L.point(point)); - return this.layerPointToLatLng(layerPoint); - }, + var w0 = Math.max(size.x, size.y), + w1 = w0 * this.getZoomScale(startZoom, targetZoom), + u1 = (to.distanceTo(from)) || 1, + rho = 1.42, + rho2 = rho * rho; - // @method latLngToContainerPoint(latlng: LatLng): Point - // Given a geographical coordinate, returns the corresponding pixel coordinate - // relative to the map container. - latLngToContainerPoint: function (latlng) { - return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng))); - }, + function r(i) { + var s1 = i ? -1 : 1, + s2 = i ? w1 : w0, + t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1, + b1 = 2 * s2 * rho2 * u1, + b = t1 / b1, + sq = Math.sqrt(b * b + 1) - b; - // @method mouseEventToContainerPoint(ev: MouseEvent): Point - // Given a MouseEvent object, returns the pixel coordinate relative to the - // map container where the event took place. - mouseEventToContainerPoint: function (e) { - return L.DomEvent.getMousePosition(e, this._container); - }, + // workaround for floating point precision bug when sq = 0, log = -Infinite, + // thus triggering an infinite loop in flyTo + var log = sq < 0.000000001 ? -18 : Math.log(sq); - // @method mouseEventToLayerPoint(ev: MouseEvent): Point - // Given a MouseEvent object, returns the pixel coordinate relative to - // the [origin pixel](#map-getpixelorigin) where the event took place. - mouseEventToLayerPoint: function (e) { - return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e)); - }, + return log; + } - // @method mouseEventToLatLng(ev: MouseEvent): LatLng - // Given a MouseEvent object, returns geographical coordinate where the - // event took place. - mouseEventToLatLng: function (e) { // (MouseEvent) - return this.layerPointToLatLng(this.mouseEventToLayerPoint(e)); - }, + function sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; } + function cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; } + function tanh(n) { return sinh(n) / cosh(n); } + var r0 = r(0); - // map initialization methods - - _initContainer: function (id) { - var container = this._container = L.DomUtil.get(id); - - if (!container) { - throw new Error('Map container not found.'); - } else if (container._leaflet_id) { - throw new Error('Map container is already initialized.'); - } + function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); } + function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; } - L.DomEvent.addListener(container, 'scroll', this._onScroll, this); - this._containerId = L.Util.stamp(container); - }, + function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); } - _initLayout: function () { - var container = this._container; + var start = Date.now(), + S = (r(1) - r0) / rho, + duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8; - this._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d; + function frame() { + var t = (Date.now() - start) / duration, + s = easeOut(t) * S; - L.DomUtil.addClass(container, 'leaflet-container' + - (L.Browser.touch ? ' leaflet-touch' : '') + - (L.Browser.retina ? ' leaflet-retina' : '') + - (L.Browser.ielt9 ? ' leaflet-oldie' : '') + - (L.Browser.safari ? ' leaflet-safari' : '') + - (this._fadeAnimated ? ' leaflet-fade-anim' : '')); + if (t <= 1) { + this._flyToFrame = requestAnimFrame(frame, this); - var position = L.DomUtil.getStyle(container, 'position'); + this._move( + this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom), + this.getScaleZoom(w0 / w(s), startZoom), + {flyTo: true}); - if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') { - container.style.position = 'relative'; + } else { + this + ._move(targetCenter, targetZoom) + ._moveEnd(true); + } } - this._initPanes(); + this._moveStart(true); - if (this._initControlPos) { - this._initControlPos(); - } + frame.call(this); + return this; }, - _initPanes: function () { - var panes = this._panes = {}; - this._paneRenderers = {}; + // @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this + // Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto), + // but takes a bounds parameter like [`fitBounds`](#map-fitbounds). + flyToBounds: function (bounds, options) { + var target = this._getBoundsCenterZoom(bounds, options); + return this.flyTo(target.center, target.zoom, options); + }, - // @section - // - // Panes are DOM elements used to control the ordering of layers on the map. You - // can access panes with [`map.getPane`](#map-getpane) or - // [`map.getPanes`](#map-getpanes) methods. New panes can be created with the - // [`map.createPane`](#map-createpane) method. - // - // Every map has the following default panes that differ only in zIndex. - // - // @pane mapPane: HTMLElement = 'auto' - // Pane that contains all other map panes + // @method setMaxBounds(bounds: Bounds): this + // Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option). + setMaxBounds: function (bounds) { + bounds = toLatLngBounds(bounds); - this._mapPane = this.createPane('mapPane', this._container); - L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0)); + if (!bounds.isValid()) { + this.options.maxBounds = null; + return this.off('moveend', this._panInsideMaxBounds); + } else if (this.options.maxBounds) { + this.off('moveend', this._panInsideMaxBounds); + } - // @pane tilePane: HTMLElement = 200 - // Pane for `GridLayer`s and `TileLayer`s - this.createPane('tilePane'); - // @pane overlayPane: HTMLElement = 400 - // Pane for vector overlays (`Path`s), like `Polyline`s and `Polygon`s - this.createPane('shadowPane'); - // @pane shadowPane: HTMLElement = 500 - // Pane for overlay shadows (e.g. `Marker` shadows) - this.createPane('overlayPane'); - // @pane markerPane: HTMLElement = 600 - // Pane for `Icon`s of `Marker`s - this.createPane('markerPane'); - // @pane tooltipPane: HTMLElement = 650 - // Pane for tooltip. - this.createPane('tooltipPane'); - // @pane popupPane: HTMLElement = 700 - // Pane for `Popup`s. - this.createPane('popupPane'); + this.options.maxBounds = bounds; - if (!this.options.markerZoomAnimation) { - L.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide'); - L.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide'); + if (this._loaded) { + this._panInsideMaxBounds(); } + + return this.on('moveend', this._panInsideMaxBounds); }, + // @method setMinZoom(zoom: Number): this + // Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option). + setMinZoom: function (zoom) { + this.options.minZoom = zoom; - // private methods that modify map state + if (this._loaded && this.getZoom() < this.options.minZoom) { + return this.setZoom(zoom); + } - // @section Map state change events - _resetView: function (center, zoom) { - L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0)); + return this; + }, - var loading = !this._loaded; - this._loaded = true; - zoom = this._limitZoom(zoom); + // @method setMaxZoom(zoom: Number): this + // Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option). + setMaxZoom: function (zoom) { + this.options.maxZoom = zoom; - this.fire('viewprereset'); + if (this._loaded && (this.getZoom() > this.options.maxZoom)) { + return this.setZoom(zoom); + } - var zoomChanged = this._zoom !== zoom; - this - ._moveStart(zoomChanged) - ._move(center, zoom) - ._moveEnd(zoomChanged); + return this; + }, - // @event viewreset: Event - // Fired when the map needs to redraw its content (this usually happens - // on map zoom or load). Very useful for creating custom overlays. - this.fire('viewreset'); + // @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this + // Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any. + panInsideBounds: function (bounds, options) { + this._enforcingBounds = true; + var center = this.getCenter(), + newCenter = this._limitCenter(center, this._zoom, toLatLngBounds(bounds)); - // @event load: Event - // Fired when the map is initialized (when its center and zoom are set - // for the first time). - if (loading) { - this.fire('load'); + if (!center.equals(newCenter)) { + this.panTo(newCenter, options); } - }, - _moveStart: function (zoomChanged) { - // @event zoomstart: Event - // Fired when the map zoom is about to change (e.g. before zoom animation). - // @event movestart: Event - // Fired when the view of the map starts changing (e.g. user starts dragging the map). - if (zoomChanged) { - this.fire('zoomstart'); - } - return this.fire('movestart'); + this._enforcingBounds = false; + return this; }, - _move: function (center, zoom, data) { - if (zoom === undefined) { - zoom = this._zoom; - } - var zoomChanged = this._zoom !== zoom; + // @method invalidateSize(options: Zoom/Pan options): this + // Checks if the map container size changed and updates the map if so — + // call it after you've changed the map size dynamically, also animating + // pan by default. If `options.pan` is `false`, panning will not occur. + // If `options.debounceMoveend` is `true`, it will delay `moveend` event so + // that it doesn't happen often even if the method is called many + // times in a row. - this._zoom = zoom; - this._lastCenter = center; - this._pixelOrigin = this._getNewPixelOrigin(center); + // @alternative + // @method invalidateSize(animate: Boolean): this + // Checks if the map container size changed and updates the map if so — + // call it after you've changed the map size dynamically, also animating + // pan by default. + invalidateSize: function (options) { + if (!this._loaded) { return this; } - // @event zoom: Event - // Fired repeatedly during any change in zoom level, including zoom - // and fly animations. - if (zoomChanged || (data && data.pinch)) { // Always fire 'zoom' if pinching because #3530 - this.fire('zoom', data); - } + options = extend({ + animate: false, + pan: true + }, options === true ? {animate: true} : options); - // @event move: Event - // Fired repeatedly during any movement of the map, including pan and - // fly animations. - return this.fire('move', data); - }, + var oldSize = this.getSize(); + this._sizeChanged = true; + this._lastCenter = null; - _moveEnd: function (zoomChanged) { - // @event zoomend: Event - // Fired when the map has changed, after any animations. - if (zoomChanged) { - this.fire('zoomend'); - } + var newSize = this.getSize(), + oldCenter = oldSize.divideBy(2).round(), + newCenter = newSize.divideBy(2).round(), + offset = oldCenter.subtract(newCenter); - // @event moveend: Event - // Fired when the center of the map stops changing (e.g. user stopped - // dragging the map). - return this.fire('moveend'); - }, + if (!offset.x && !offset.y) { return this; } - _stop: function () { - L.Util.cancelAnimFrame(this._flyToFrame); - if (this._panAnim) { - this._panAnim.stop(); - } - return this; - }, + if (options.animate && options.pan) { + this.panBy(offset); - _rawPanBy: function (offset) { - L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset)); - }, + } else { + if (options.pan) { + this._rawPanBy(offset); + } - _getZoomSpan: function () { - return this.getMaxZoom() - this.getMinZoom(); - }, + this.fire('move'); - _panInsideMaxBounds: function () { - if (!this._enforcingBounds) { - this.panInsideBounds(this.options.maxBounds); + if (options.debounceMoveend) { + clearTimeout(this._sizeTimer); + this._sizeTimer = setTimeout(bind(this.fire, this, 'moveend'), 200); + } else { + this.fire('moveend'); + } } + + // @section Map state change events + // @event resize: ResizeEvent + // Fired when the map is resized. + return this.fire('resize', { + oldSize: oldSize, + newSize: newSize + }); }, - _checkIfLoaded: function () { - if (!this._loaded) { - throw new Error('Set map center and zoom first.'); + // @section Methods for modifying map state + // @method stop(): this + // Stops the currently running `panTo` or `flyTo` animation, if any. + stop: function () { + this.setZoom(this._limitZoom(this._zoom)); + if (!this.options.zoomSnap) { + this.fire('viewreset'); } + return this._stop(); }, - // DOM event handling - - // @section Interaction events - _initEvents: function (remove) { - if (!L.DomEvent) { return; } + // @section Geolocation methods + // @method locate(options?: Locate options): this + // Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound) + // event with location data on success or a [`locationerror`](#map-locationerror) event on failure, + // and optionally sets the map view to the user's location with respect to + // detection accuracy (or to the world view if geolocation failed). + // Note that, if your page doesn't use HTTPS, this method will fail in + // modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins)) + // See `Locate options` for more details. + locate: function (options) { - this._targets = {}; - this._targets[L.stamp(this._container)] = this; + options = this._locateOptions = extend({ + timeout: 10000, + watch: false + // setView: false + // maxZoom: + // maximumAge: 0 + // enableHighAccuracy: false + }, options); - var onOff = remove ? 'off' : 'on'; + if (!('geolocation' in navigator)) { + this._handleGeolocationError({ + code: 0, + message: 'Geolocation not supported.' + }); + return this; + } - // @event click: MouseEvent - // Fired when the user clicks (or taps) the map. - // @event dblclick: MouseEvent - // Fired when the user double-clicks (or double-taps) the map. - // @event mousedown: MouseEvent - // Fired when the user pushes the mouse button on the map. - // @event mouseup: MouseEvent - // Fired when the user releases the mouse button on the map. - // @event mouseover: MouseEvent - // Fired when the mouse enters the map. - // @event mouseout: MouseEvent - // Fired when the mouse leaves the map. - // @event mousemove: MouseEvent - // Fired while the mouse moves over the map. - // @event contextmenu: MouseEvent - // Fired when the user pushes the right mouse button on the map, prevents - // default browser context menu from showing if there are listeners on - // this event. Also fired on mobile when the user holds a single touch - // for a second (also called long press). - // @event keypress: KeyboardEvent - // Fired when the user presses a key from the keyboard while the map is focused. - L.DomEvent[onOff](this._container, 'click dblclick mousedown mouseup ' + - 'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this); + var onResponse = bind(this._handleGeolocationResponse, this), + onError = bind(this._handleGeolocationError, this); - if (this.options.trackResize) { - L.DomEvent[onOff](window, 'resize', this._onResize, this); + if (options.watch) { + this._locationWatchId = + navigator.geolocation.watchPosition(onResponse, onError, options); + } else { + navigator.geolocation.getCurrentPosition(onResponse, onError, options); } + return this; + }, - if (L.Browser.any3d && this.options.transform3DLimit) { - this[onOff]('moveend', this._onMoveEnd); + // @method stopLocate(): this + // Stops watching location previously initiated by `map.locate({watch: true})` + // and aborts resetting the map view if map.locate was called with + // `{setView: true}`. + stopLocate: function () { + if (navigator.geolocation && navigator.geolocation.clearWatch) { + navigator.geolocation.clearWatch(this._locationWatchId); + } + if (this._locateOptions) { + this._locateOptions.setView = false; } + return this; }, - _onResize: function () { - L.Util.cancelAnimFrame(this._resizeRequest); - this._resizeRequest = L.Util.requestAnimFrame( - function () { this.invalidateSize({debounceMoveend: true}); }, this); - }, + _handleGeolocationError: function (error) { + var c = error.code, + message = error.message || + (c === 1 ? 'permission denied' : + (c === 2 ? 'position unavailable' : 'timeout')); - _onScroll: function () { - this._container.scrollTop = 0; - this._container.scrollLeft = 0; + if (this._locateOptions.setView && !this._loaded) { + this.fitWorld(); + } + + // @section Location events + // @event locationerror: ErrorEvent + // Fired when geolocation (using the [`locate`](#map-locate) method) failed. + this.fire('locationerror', { + code: c, + message: 'Geolocation error: ' + message + '.' + }); }, - _onMoveEnd: function () { - var pos = this._getMapPanePos(); - if (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) { - // https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have - // a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/ - this._resetView(this.getCenter(), this.getZoom()); + _handleGeolocationResponse: function (pos) { + var lat = pos.coords.latitude, + lng = pos.coords.longitude, + latlng = new LatLng(lat, lng), + bounds = latlng.toBounds(pos.coords.accuracy), + options = this._locateOptions; + + if (options.setView) { + var zoom = this.getBoundsZoom(bounds); + this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom); } - }, - _findEventTargets: function (e, type) { - var targets = [], - target, - isHover = type === 'mouseout' || type === 'mouseover', - src = e.target || e.srcElement, - dragging = false; + var data = { + latlng: latlng, + bounds: bounds, + timestamp: pos.timestamp + }; - while (src) { - target = this._targets[L.stamp(src)]; - if (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) { - // Prevent firing click after you just dragged an object. - dragging = true; - break; - } - if (target && target.listens(type, true)) { - if (isHover && !L.DomEvent._isExternalTarget(src, e)) { break; } - targets.push(target); - if (isHover) { break; } + for (var i in pos.coords) { + if (typeof pos.coords[i] === 'number') { + data[i] = pos.coords[i]; } - if (src === this._container) { break; } - src = src.parentNode; - } - if (!targets.length && !dragging && !isHover && L.DomEvent._isExternalTarget(src, e)) { - targets = [this]; } - return targets; + + // @event locationfound: LocationEvent + // Fired when geolocation (using the [`locate`](#map-locate) method) + // went successfully. + this.fire('locationfound', data); }, - _handleDOMEvent: function (e) { - if (!this._loaded || L.DomEvent._skipped(e)) { return; } + // TODO handler.addTo + // TODO Appropiate docs section? + // @section Other Methods + // @method addHandler(name: String, HandlerClass: Function): this + // Adds a new `Handler` to the map, given its name and constructor function. + addHandler: function (name, HandlerClass) { + if (!HandlerClass) { return this; } - var type = e.type === 'keypress' && e.keyCode === 13 ? 'click' : e.type; + var handler = this[name] = new HandlerClass(this); - if (type === 'mousedown') { - // prevents outline when clicking on keyboard-focusable element - L.DomUtil.preventOutline(e.target || e.srcElement); + this._handlers.push(handler); + + if (this.options[name]) { + handler.enable(); } - this._fireDOMEvent(e, type); + return this; }, - _fireDOMEvent: function (e, type, targets) { + // @method remove(): this + // Destroys the map and clears all related event listeners. + remove: function () { - if (e.type === 'click') { - // Fire a synthetic 'preclick' event which propagates up (mainly for closing popups). - // @event preclick: MouseEvent - // Fired before mouse click on the map (sometimes useful when you - // want something to happen on click before any existing click - // handlers start running). - var synth = L.Util.extend({}, e); - synth.type = 'preclick'; - this._fireDOMEvent(synth, synth.type, targets); - } + this._initEvents(true); - if (e._stopped) { return; } + if (this._containerId !== this._container._leaflet_id) { + throw new Error('Map container is being reused by another instance'); + } - // Find the layer the event is propagating from and its parents. - targets = (targets || []).concat(this._findEventTargets(e, type)); + try { + // throws error in IE6-8 + delete this._container._leaflet_id; + delete this._containerId; + } catch (e) { + /*eslint-disable */ + this._container._leaflet_id = undefined; + /*eslint-enable */ + this._containerId = undefined; + } - if (!targets.length) { return; } + remove(this._mapPane); - var target = targets[0]; - if (type === 'contextmenu' && target.listens(type, true)) { - L.DomEvent.preventDefault(e); + if (this._clearControlPos) { + this._clearControlPos(); } - var data = { - originalEvent: e - }; + this._clearHandlers(); - if (e.type !== 'keypress') { - var isMarker = target instanceof L.Marker; - data.containerPoint = isMarker ? - this.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e); - data.layerPoint = this.containerPointToLayerPoint(data.containerPoint); - data.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint); + if (this._loaded) { + // @section Map state change events + // @event unload: Event + // Fired when the map is destroyed with [remove](#map-remove) method. + this.fire('unload'); } - for (var i = 0; i < targets.length; i++) { - targets[i].fire(type, data, true); - if (data.originalEvent._stopped || - (targets[i].options.nonBubblingEvents && L.Util.indexOf(targets[i].options.nonBubblingEvents, type) !== -1)) { return; } + var i; + for (i in this._layers) { + this._layers[i].remove(); + } + for (i in this._panes) { + remove(this._panes[i]); } - }, - _draggableMoved: function (obj) { - obj = obj.dragging && obj.dragging.enabled() ? obj : this; - return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved()); - }, + this._layers = []; + this._panes = []; + delete this._mapPane; + delete this._renderer; - _clearHandlers: function () { - for (var i = 0, len = this._handlers.length; i < len; i++) { - this._handlers[i].disable(); - } + return this; }, // @section Other Methods + // @method createPane(name: String, container?: HTMLElement): HTMLElement + // Creates a new [map pane](#map-pane) with the given name if it doesn't exist already, + // then returns it. The pane is created as a child of `container`, or + // as a child of the main map pane if not set. + createPane: function (name, container) { + var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''), + pane = create$1('div', className, container || this._mapPane); - // @method whenReady(fn: Function, context?: Object): this - // Runs the given function `fn` when the map gets initialized with - // a view (center and zoom) and at least one layer, or immediately - // if it's already initialized, optionally passing a function context. - whenReady: function (callback, context) { - if (this._loaded) { - callback.call(context || this, {target: this}); - } else { - this.on('load', callback, context); + if (name) { + this._panes[name] = pane; } - return this; + return pane; }, + // @section Methods for Getting Map State - // private methods for getting map state + // @method getCenter(): LatLng + // Returns the geographical center of the map view + getCenter: function () { + this._checkIfLoaded(); - _getMapPanePos: function () { - return L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0); + if (this._lastCenter && !this._moved()) { + return this._lastCenter; + } + return this.layerPointToLatLng(this._getCenterLayerPoint()); }, - _moved: function () { - var pos = this._getMapPanePos(); - return pos && !pos.equals([0, 0]); + // @method getZoom(): Number + // Returns the current zoom level of the map view + getZoom: function () { + return this._zoom; }, - _getTopLeftPoint: function (center, zoom) { - var pixelOrigin = center && zoom !== undefined ? - this._getNewPixelOrigin(center, zoom) : - this.getPixelOrigin(); - return pixelOrigin.subtract(this._getMapPanePos()); - }, - - _getNewPixelOrigin: function (center, zoom) { - var viewHalf = this.getSize()._divideBy(2); - return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round(); - }, - - _latLngToNewLayerPoint: function (latlng, zoom, center) { - var topLeft = this._getNewPixelOrigin(center, zoom); - return this.project(latlng, zoom)._subtract(topLeft); - }, + // @method getBounds(): LatLngBounds + // Returns the geographical bounds visible in the current map view + getBounds: function () { + var bounds = this.getPixelBounds(), + sw = this.unproject(bounds.getBottomLeft()), + ne = this.unproject(bounds.getTopRight()); - _latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) { - var topLeft = this._getNewPixelOrigin(center, zoom); - return L.bounds([ - this.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft), - this.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft), - this.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft), - this.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft) - ]); + return new LatLngBounds(sw, ne); }, - // layer point of the current center - _getCenterLayerPoint: function () { - return this.containerPointToLayerPoint(this.getSize()._divideBy(2)); + // @method getMinZoom(): Number + // Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default. + getMinZoom: function () { + return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom; }, - // offset of the specified place to the current center in pixels - _getCenterOffset: function (latlng) { - return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint()); + // @method getMaxZoom(): Number + // Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers). + getMaxZoom: function () { + return this.options.maxZoom === undefined ? + (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) : + this.options.maxZoom; }, - // adjust center for view to get inside bounds - _limitCenter: function (center, zoom, bounds) { + // @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean): Number + // Returns the maximum zoom level on which the given bounds fit to the map + // view in its entirety. If `inside` (optional) is set to `true`, the method + // instead returns the minimum zoom level on which the map view fits into + // the given bounds in its entirety. + getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number + bounds = toLatLngBounds(bounds); + padding = toPoint(padding || [0, 0]); - if (!bounds) { return center; } + var zoom = this.getZoom() || 0, + min = this.getMinZoom(), + max = this.getMaxZoom(), + nw = bounds.getNorthWest(), + se = bounds.getSouthEast(), + size = this.getSize().subtract(padding), + boundsSize = toBounds(this.project(se, zoom), this.project(nw, zoom)).getSize(), + snap = any3d ? this.options.zoomSnap : 1, + scalex = size.x / boundsSize.x, + scaley = size.y / boundsSize.y, + scale = inside ? Math.max(scalex, scaley) : Math.min(scalex, scaley); - var centerPoint = this.project(center, zoom), - viewHalf = this.getSize().divideBy(2), - viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)), - offset = this._getBoundsOffset(viewBounds, bounds, zoom); + zoom = this.getScaleZoom(scale, zoom); - // If offset is less than a pixel, ignore. - // This prevents unstable projections from getting into - // an infinite loop of tiny offsets. - if (offset.round().equals([0, 0])) { - return center; + if (snap) { + zoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level + zoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap; } - return this.unproject(centerPoint.add(offset), zoom); + return Math.max(min, Math.min(max, zoom)); }, - // adjust offset for view to get inside bounds - _limitOffset: function (offset, bounds) { - if (!bounds) { return offset; } - - var viewBounds = this.getPixelBounds(), - newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset)); + // @method getSize(): Point + // Returns the current size of the map container (in pixels). + getSize: function () { + if (!this._size || this._sizeChanged) { + this._size = new Point( + this._container.clientWidth || 0, + this._container.clientHeight || 0); - return offset.add(this._getBoundsOffset(newBounds, bounds)); + this._sizeChanged = false; + } + return this._size.clone(); }, - // returns offset needed for pxBounds to get inside maxBounds at a specified zoom - _getBoundsOffset: function (pxBounds, maxBounds, zoom) { - var projectedMaxBounds = L.bounds( - this.project(maxBounds.getNorthEast(), zoom), - this.project(maxBounds.getSouthWest(), zoom) - ), - minOffset = projectedMaxBounds.min.subtract(pxBounds.min), - maxOffset = projectedMaxBounds.max.subtract(pxBounds.max), - - dx = this._rebound(minOffset.x, -maxOffset.x), - dy = this._rebound(minOffset.y, -maxOffset.y); - - return new L.Point(dx, dy); + // @method getPixelBounds(): Bounds + // Returns the bounds of the current map view in projected pixel + // coordinates (sometimes useful in layer and overlay implementations). + getPixelBounds: function (center, zoom) { + var topLeftPoint = this._getTopLeftPoint(center, zoom); + return new Bounds(topLeftPoint, topLeftPoint.add(this.getSize())); }, - _rebound: function (left, right) { - return left + right > 0 ? - Math.round(left - right) / 2 : - Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right)); + // TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to + // the map pane? "left point of the map layer" can be confusing, specially + // since there can be negative offsets. + // @method getPixelOrigin(): Point + // Returns the projected pixel coordinates of the top left point of + // the map layer (useful in custom layer and overlay implementations). + getPixelOrigin: function () { + this._checkIfLoaded(); + return this._pixelOrigin; }, - _limitZoom: function (zoom) { - var min = this.getMinZoom(), - max = this.getMaxZoom(), - snap = L.Browser.any3d ? this.options.zoomSnap : 1; - if (snap) { - zoom = Math.round(zoom / snap) * snap; - } - return Math.max(min, Math.min(max, zoom)); + // @method getPixelWorldBounds(zoom?: Number): Bounds + // Returns the world's bounds in pixel coordinates for zoom level `zoom`. + // If `zoom` is omitted, the map's current zoom level is used. + getPixelWorldBounds: function (zoom) { + return this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom); }, - _onPanTransitionStep: function () { - this.fire('move'); + // @section Other Methods + + // @method getPane(pane: String|HTMLElement): HTMLElement + // Returns a [map pane](#map-pane), given its name or its HTML element (its identity). + getPane: function (pane) { + return typeof pane === 'string' ? this._panes[pane] : pane; }, - _onPanTransitionEnd: function () { - L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim'); - this.fire('moveend'); + // @method getPanes(): Object + // Returns a plain object containing the names of all [panes](#map-pane) as keys and + // the panes as values. + getPanes: function () { + return this._panes; }, - _tryAnimatedPan: function (center, options) { - // difference between the new and current centers in pixels - var offset = this._getCenterOffset(center)._floor(); + // @method getContainer: HTMLElement + // Returns the HTML element that contains the map. + getContainer: function () { + return this._container; + }, - // don't animate too far unless animate: true specified in options - if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; } - this.panBy(offset, options); + // @section Conversion Methods - return true; + // @method getZoomScale(toZoom: Number, fromZoom: Number): Number + // Returns the scale factor to be applied to a map transition from zoom level + // `fromZoom` to `toZoom`. Used internally to help with zoom animations. + getZoomScale: function (toZoom, fromZoom) { + // TODO replace with universal implementation after refactoring projections + var crs = this.options.crs; + fromZoom = fromZoom === undefined ? this._zoom : fromZoom; + return crs.scale(toZoom) / crs.scale(fromZoom); }, - _createAnimProxy: function () { + // @method getScaleZoom(scale: Number, fromZoom: Number): Number + // Returns the zoom level that the map would end up at, if it is at `fromZoom` + // level and everything is scaled by a factor of `scale`. Inverse of + // [`getZoomScale`](#map-getZoomScale). + getScaleZoom: function (scale, fromZoom) { + var crs = this.options.crs; + fromZoom = fromZoom === undefined ? this._zoom : fromZoom; + var zoom = crs.zoom(scale * crs.scale(fromZoom)); + return isNaN(zoom) ? Infinity : zoom; + }, - var proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated'); - this._panes.mapPane.appendChild(proxy); + // @method project(latlng: LatLng, zoom: Number): Point + // Projects a geographical coordinate `LatLng` according to the projection + // of the map's CRS, then scales it according to `zoom` and the CRS's + // `Transformation`. The result is pixel coordinate relative to + // the CRS origin. + project: function (latlng, zoom) { + zoom = zoom === undefined ? this._zoom : zoom; + return this.options.crs.latLngToPoint(toLatLng(latlng), zoom); + }, - this.on('zoomanim', function (e) { - var prop = L.DomUtil.TRANSFORM, - transform = proxy.style[prop]; + // @method unproject(point: Point, zoom: Number): LatLng + // Inverse of [`project`](#map-project). + unproject: function (point, zoom) { + zoom = zoom === undefined ? this._zoom : zoom; + return this.options.crs.pointToLatLng(toPoint(point), zoom); + }, - L.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1)); + // @method layerPointToLatLng(point: Point): LatLng + // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin), + // returns the corresponding geographical coordinate (for the current zoom level). + layerPointToLatLng: function (point) { + var projectedPoint = toPoint(point).add(this.getPixelOrigin()); + return this.unproject(projectedPoint); + }, - // workaround for case when transform is the same and so transitionend event is not fired - if (transform === proxy.style[prop] && this._animatingZoom) { - this._onZoomTransitionEnd(); - } - }, this); + // @method latLngToLayerPoint(latlng: LatLng): Point + // Given a geographical coordinate, returns the corresponding pixel coordinate + // relative to the [origin pixel](#map-getpixelorigin). + latLngToLayerPoint: function (latlng) { + var projectedPoint = this.project(toLatLng(latlng))._round(); + return projectedPoint._subtract(this.getPixelOrigin()); + }, - this.on('load moveend', function () { - var c = this.getCenter(), - z = this.getZoom(); - L.DomUtil.setTransform(proxy, this.project(c, z), this.getZoomScale(z, 1)); - }, this); + // @method wrapLatLng(latlng: LatLng): LatLng + // Returns a `LatLng` where `lat` and `lng` has been wrapped according to the + // map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the + // CRS's bounds. + // By default this means longitude is wrapped around the dateline so its + // value is between -180 and +180 degrees. + wrapLatLng: function (latlng) { + return this.options.crs.wrapLatLng(toLatLng(latlng)); }, - _catchTransitionEnd: function (e) { - if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) { - this._onZoomTransitionEnd(); - } + // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds + // Returns a `LatLngBounds` with the same size as the given one, ensuring that + // its center is within the CRS's bounds. + // By default this means the center longitude is wrapped around the dateline so its + // value is between -180 and +180 degrees, and the majority of the bounds + // overlaps the CRS's bounds. + wrapLatLngBounds: function (latlng) { + return this.options.crs.wrapLatLngBounds(toLatLngBounds(latlng)); }, - _nothingToAnimate: function () { - return !this._container.getElementsByClassName('leaflet-zoom-animated').length; + // @method distance(latlng1: LatLng, latlng2: LatLng): Number + // Returns the distance between two geographical coordinates according to + // the map's CRS. By default this measures distance in meters. + distance: function (latlng1, latlng2) { + return this.options.crs.distance(toLatLng(latlng1), toLatLng(latlng2)); }, - _tryAnimatedZoom: function (center, zoom, options) { + // @method containerPointToLayerPoint(point: Point): Point + // Given a pixel coordinate relative to the map container, returns the corresponding + // pixel coordinate relative to the [origin pixel](#map-getpixelorigin). + containerPointToLayerPoint: function (point) { // (Point) + return toPoint(point).subtract(this._getMapPanePos()); + }, - if (this._animatingZoom) { return true; } + // @method layerPointToContainerPoint(point: Point): Point + // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin), + // returns the corresponding pixel coordinate relative to the map container. + layerPointToContainerPoint: function (point) { // (Point) + return toPoint(point).add(this._getMapPanePos()); + }, - options = options || {}; + // @method containerPointToLatLng(point: Point): LatLng + // Given a pixel coordinate relative to the map container, returns + // the corresponding geographical coordinate (for the current zoom level). + containerPointToLatLng: function (point) { + var layerPoint = this.containerPointToLayerPoint(toPoint(point)); + return this.layerPointToLatLng(layerPoint); + }, - // don't animate if disabled, not supported or zoom difference is too large - if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() || - Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; } + // @method latLngToContainerPoint(latlng: LatLng): Point + // Given a geographical coordinate, returns the corresponding pixel coordinate + // relative to the map container. + latLngToContainerPoint: function (latlng) { + return this.layerPointToContainerPoint(this.latLngToLayerPoint(toLatLng(latlng))); + }, - // offset is the pixel coords of the zoom origin relative to the current center - var scale = this.getZoomScale(zoom), - offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale); + // @method mouseEventToContainerPoint(ev: MouseEvent): Point + // Given a MouseEvent object, returns the pixel coordinate relative to the + // map container where the event took place. + mouseEventToContainerPoint: function (e) { + return getMousePosition(e, this._container); + }, - // don't animate if the zoom origin isn't within one screen from the current center, unless forced - if (options.animate !== true && !this.getSize().contains(offset)) { return false; } + // @method mouseEventToLayerPoint(ev: MouseEvent): Point + // Given a MouseEvent object, returns the pixel coordinate relative to + // the [origin pixel](#map-getpixelorigin) where the event took place. + mouseEventToLayerPoint: function (e) { + return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e)); + }, - L.Util.requestAnimFrame(function () { - this - ._moveStart(true) - ._animateZoom(center, zoom, true); - }, this); + // @method mouseEventToLatLng(ev: MouseEvent): LatLng + // Given a MouseEvent object, returns geographical coordinate where the + // event took place. + mouseEventToLatLng: function (e) { // (MouseEvent) + return this.layerPointToLatLng(this.mouseEventToLayerPoint(e)); + }, - return true; + + // map initialization methods + + _initContainer: function (id) { + var container = this._container = get(id); + + if (!container) { + throw new Error('Map container not found.'); + } else if (container._leaflet_id) { + throw new Error('Map container is already initialized.'); + } + + on(container, 'scroll', this._onScroll, this); + this._containerId = stamp(container); }, - _animateZoom: function (center, zoom, startAnim, noUpdate) { - if (startAnim) { - this._animatingZoom = true; + _initLayout: function () { + var container = this._container; - // remember what center/zoom to set after animation - this._animateToCenter = center; - this._animateToZoom = zoom; + this._fadeAnimated = this.options.fadeAnimation && any3d; - L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim'); + addClass(container, 'leaflet-container' + + (touch ? ' leaflet-touch' : '') + + (retina ? ' leaflet-retina' : '') + + (ielt9 ? ' leaflet-oldie' : '') + + (safari ? ' leaflet-safari' : '') + + (this._fadeAnimated ? ' leaflet-fade-anim' : '')); + + var position = getStyle(container, 'position'); + + if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') { + container.style.position = 'relative'; } - // @event zoomanim: ZoomAnimEvent - // Fired on every frame of a zoom animation - this.fire('zoomanim', { - center: center, - zoom: zoom, - noUpdate: noUpdate - }); + this._initPanes(); - // Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693 - setTimeout(L.bind(this._onZoomTransitionEnd, this), 250); + if (this._initControlPos) { + this._initControlPos(); + } }, - _onZoomTransitionEnd: function () { - if (!this._animatingZoom) { return; } + _initPanes: function () { + var panes = this._panes = {}; + this._paneRenderers = {}; - L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim'); + // @section + // + // Panes are DOM elements used to control the ordering of layers on the map. You + // can access panes with [`map.getPane`](#map-getpane) or + // [`map.getPanes`](#map-getpanes) methods. New panes can be created with the + // [`map.createPane`](#map-createpane) method. + // + // Every map has the following default panes that differ only in zIndex. + // + // @pane mapPane: HTMLElement = 'auto' + // Pane that contains all other map panes - this._animatingZoom = false; + this._mapPane = this.createPane('mapPane', this._container); + setPosition(this._mapPane, new Point(0, 0)); - this._move(this._animateToCenter, this._animateToZoom); + // @pane tilePane: HTMLElement = 200 + // Pane for `GridLayer`s and `TileLayer`s + this.createPane('tilePane'); + // @pane overlayPane: HTMLElement = 400 + // Pane for vector overlays (`Path`s), like `Polyline`s and `Polygon`s + this.createPane('shadowPane'); + // @pane shadowPane: HTMLElement = 500 + // Pane for overlay shadows (e.g. `Marker` shadows) + this.createPane('overlayPane'); + // @pane markerPane: HTMLElement = 600 + // Pane for `Icon`s of `Marker`s + this.createPane('markerPane'); + // @pane tooltipPane: HTMLElement = 650 + // Pane for tooltip. + this.createPane('tooltipPane'); + // @pane popupPane: HTMLElement = 700 + // Pane for `Popup`s. + this.createPane('popupPane'); - // This anim frame should prevent an obscure iOS webkit tile loading race condition. - L.Util.requestAnimFrame(function () { - this._moveEnd(true); - }, this); - } -}); - -// @section - -// @factory L.map(id: String, options?: Map options) -// Instantiates a map object given the DOM ID of a `
` element -// and optionally an object literal with `Map options`. -// -// @alternative -// @factory L.map(el: HTMLElement, options?: Map options) -// Instantiates a map object given an instance of a `
` HTML element -// and optionally an object literal with `Map options`. -L.map = function (id, options) { - return new L.Map(id, options); -}; - - - - -/* - * @class Layer - * @inherits Evented - * @aka L.Layer - * @aka ILayer - * - * A set of methods from the Layer base class that all Leaflet layers use. - * Inherits all methods, options and events from `L.Evented`. - * - * @example - * - * ```js - * var layer = L.Marker(latlng).addTo(map); - * layer.addTo(map); - * layer.remove(); - * ``` - * - * @event add: Event - * Fired after the layer is added to a map - * - * @event remove: Event - * Fired after the layer is removed from a map - */ - - -L.Layer = L.Evented.extend({ - - // Classes extending `L.Layer` will inherit the following options: - options: { - // @option pane: String = 'overlayPane' - // By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default. - pane: 'overlayPane', - nonBubblingEvents: [], // Array of events that should not be bubbled to DOM parents (like the map), - - // @option attribution: String = null - // String to be shown in the attribution control, describes the layer data, e.g. "© Mapbox". - attribution: null - }, - - /* @section - * Classes extending `L.Layer` will inherit the following methods: - * - * @method addTo(map: Map): this - * Adds the layer to the given map - */ - addTo: function (map) { - map.addLayer(this); - return this; - }, - - // @method remove: this - // Removes the layer from the map it is currently active on. - remove: function () { - return this.removeFrom(this._map || this._mapToAdd); - }, - - // @method removeFrom(map: Map): this - // Removes the layer from the given map - removeFrom: function (obj) { - if (obj) { - obj.removeLayer(this); - } - return this; - }, - - // @method getPane(name? : String): HTMLElement - // Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer. - getPane: function (name) { - return this._map.getPane(name ? (this.options[name] || name) : this.options.pane); - }, - - addInteractiveTarget: function (targetEl) { - this._map._targets[L.stamp(targetEl)] = this; - return this; - }, - - removeInteractiveTarget: function (targetEl) { - delete this._map._targets[L.stamp(targetEl)]; - return this; - }, - - // @method getAttribution: String - // Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution). - getAttribution: function () { - return this.options.attribution; - }, - - _layerAdd: function (e) { - var map = e.target; - - // check in case layer gets added and then removed before the map is ready - if (!map.hasLayer(this)) { return; } - - this._map = map; - this._zoomAnimated = map._zoomAnimated; - - if (this.getEvents) { - var events = this.getEvents(); - map.on(events, this); - this.once('remove', function () { - map.off(events, this); - }, this); - } - - this.onAdd(map); - - if (this.getAttribution && map.attributionControl) { - map.attributionControl.addAttribution(this.getAttribution()); - } - - this.fire('add'); - map.fire('layeradd', {layer: this}); - } -}); - -/* @section Extension methods - * @uninheritable - * - * Every layer should extend from `L.Layer` and (re-)implement the following methods. - * - * @method onAdd(map: Map): this - * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer). - * - * @method onRemove(map: Map): this - * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer). - * - * @method getEvents(): Object - * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer. - * - * @method getAttribution(): String - * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible. - * - * @method beforeAdd(map: Map): this - * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only. - */ - - -/* @namespace Map - * @section Layer events - * - * @event layeradd: LayerEvent - * Fired when a new layer is added to the map. - * - * @event layerremove: LayerEvent - * Fired when some layer is removed from the map - * - * @section Methods for Layers and Controls - */ -L.Map.include({ - // @method addLayer(layer: Layer): this - // Adds the given layer to the map - addLayer: function (layer) { - var id = L.stamp(layer); - if (this._layers[id]) { return this; } - this._layers[id] = layer; - - layer._mapToAdd = this; - - if (layer.beforeAdd) { - layer.beforeAdd(this); - } - - this.whenReady(layer._layerAdd, layer); - - return this; - }, - - // @method removeLayer(layer: Layer): this - // Removes the given layer from the map. - removeLayer: function (layer) { - var id = L.stamp(layer); - - if (!this._layers[id]) { return this; } - - if (this._loaded) { - layer.onRemove(this); - } - - if (layer.getAttribution && this.attributionControl) { - this.attributionControl.removeAttribution(layer.getAttribution()); - } - - delete this._layers[id]; - - if (this._loaded) { - this.fire('layerremove', {layer: layer}); - layer.fire('remove'); - } - - layer._map = layer._mapToAdd = null; - - return this; - }, - - // @method hasLayer(layer: Layer): Boolean - // Returns `true` if the given layer is currently added to the map - hasLayer: function (layer) { - return !!layer && (L.stamp(layer) in this._layers); - }, - - /* @method eachLayer(fn: Function, context?: Object): this - * Iterates over the layers of the map, optionally specifying context of the iterator function. - * ``` - * map.eachLayer(function(layer){ - * layer.bindPopup('Hello'); - * }); - * ``` - */ - eachLayer: function (method, context) { - for (var i in this._layers) { - method.call(context, this._layers[i]); - } - return this; - }, - - _addLayers: function (layers) { - layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : []; - - for (var i = 0, len = layers.length; i < len; i++) { - this.addLayer(layers[i]); - } - }, - - _addZoomLimit: function (layer) { - if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) { - this._zoomBoundLayers[L.stamp(layer)] = layer; - this._updateZoomLevels(); - } - }, - - _removeZoomLimit: function (layer) { - var id = L.stamp(layer); - - if (this._zoomBoundLayers[id]) { - delete this._zoomBoundLayers[id]; - this._updateZoomLevels(); - } - }, - - _updateZoomLevels: function () { - var minZoom = Infinity, - maxZoom = -Infinity, - oldZoomSpan = this._getZoomSpan(); - - for (var i in this._zoomBoundLayers) { - var options = this._zoomBoundLayers[i].options; - - minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom); - maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom); - } - - this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom; - this._layersMinZoom = minZoom === Infinity ? undefined : minZoom; - - // @section Map state change events - // @event zoomlevelschange: Event - // Fired when the number of zoomlevels on the map is changed due - // to adding or removing a layer. - if (oldZoomSpan !== this._getZoomSpan()) { - this.fire('zoomlevelschange'); - } - - if (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) { - this.setZoom(this._layersMaxZoom); - } - if (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) { - this.setZoom(this._layersMinZoom); - } - } -}); - - - -/* - * @namespace DomEvent - * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally. - */ - -// Inspired by John Resig, Dean Edwards and YUI addEvent implementations. + if (!this.options.markerZoomAnimation) { + addClass(panes.markerPane, 'leaflet-zoom-hide'); + addClass(panes.shadowPane, 'leaflet-zoom-hide'); + } + }, + // private methods that modify map state -var eventsKey = '_leaflet_events'; + // @section Map state change events + _resetView: function (center, zoom) { + setPosition(this._mapPane, new Point(0, 0)); -L.DomEvent = { + var loading = !this._loaded; + this._loaded = true; + zoom = this._limitZoom(zoom); - // @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this - // Adds a listener function (`fn`) to a particular DOM event type of the - // element `el`. You can optionally specify the context of the listener - // (object the `this` keyword will point to). You can also pass several - // space-separated types (e.g. `'click dblclick'`). + this.fire('viewprereset'); - // @alternative - // @function on(el: HTMLElement, eventMap: Object, context?: Object): this - // Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}` - on: function (obj, types, fn, context) { + var zoomChanged = this._zoom !== zoom; + this + ._moveStart(zoomChanged) + ._move(center, zoom) + ._moveEnd(zoomChanged); - if (typeof types === 'object') { - for (var type in types) { - this._on(obj, type, types[type], fn); - } - } else { - types = L.Util.splitWords(types); + // @event viewreset: Event + // Fired when the map needs to redraw its content (this usually happens + // on map zoom or load). Very useful for creating custom overlays. + this.fire('viewreset'); - for (var i = 0, len = types.length; i < len; i++) { - this._on(obj, types[i], fn, context); - } + // @event load: Event + // Fired when the map is initialized (when its center and zoom are set + // for the first time). + if (loading) { + this.fire('load'); } - - return this; }, - // @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this - // Removes a previously added listener function. If no function is specified, - // it will remove all the listeners of that particular DOM event from the element. - // Note that if you passed a custom context to on, you must pass the same - // context to `off` in order to remove the listener. - - // @alternative - // @function off(el: HTMLElement, eventMap: Object, context?: Object): this - // Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}` - off: function (obj, types, fn, context) { - - if (typeof types === 'object') { - for (var type in types) { - this._off(obj, type, types[type], fn); - } - } else { - types = L.Util.splitWords(types); - - for (var i = 0, len = types.length; i < len; i++) { - this._off(obj, types[i], fn, context); - } + _moveStart: function (zoomChanged) { + // @event zoomstart: Event + // Fired when the map zoom is about to change (e.g. before zoom animation). + // @event movestart: Event + // Fired when the view of the map starts changing (e.g. user starts dragging the map). + if (zoomChanged) { + this.fire('zoomstart'); } - - return this; + return this.fire('movestart'); }, - _on: function (obj, type, fn, context) { - var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''); - - if (obj[eventsKey] && obj[eventsKey][id]) { return this; } - - var handler = function (e) { - return fn.call(context || obj, e || window.event); - }; - - var originalHandler = handler; - - if (L.Browser.pointer && type.indexOf('touch') === 0) { - this.addPointerListener(obj, type, handler, id); - - } else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener && - !(L.Browser.pointer && L.Browser.chrome)) { - // Chrome >55 does not need the synthetic dblclicks from addDoubleTapListener - // See #5180 - this.addDoubleTapListener(obj, handler, id); - - } else if ('addEventListener' in obj) { + _move: function (center, zoom, data) { + if (zoom === undefined) { + zoom = this._zoom; + } + var zoomChanged = this._zoom !== zoom; - if (type === 'mousewheel') { - obj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false); + this._zoom = zoom; + this._lastCenter = center; + this._pixelOrigin = this._getNewPixelOrigin(center); - } else if ((type === 'mouseenter') || (type === 'mouseleave')) { - handler = function (e) { - e = e || window.event; - if (L.DomEvent._isExternalTarget(obj, e)) { - originalHandler(e); - } - }; - obj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false); + // @event zoom: Event + // Fired repeatedly during any change in zoom level, including zoom + // and fly animations. + if (zoomChanged || (data && data.pinch)) { // Always fire 'zoom' if pinching because #3530 + this.fire('zoom', data); + } - } else { - if (type === 'click' && L.Browser.android) { - handler = function (e) { - return L.DomEvent._filterClick(e, originalHandler); - }; - } - obj.addEventListener(type, handler, false); - } + // @event move: Event + // Fired repeatedly during any movement of the map, including pan and + // fly animations. + return this.fire('move', data); + }, - } else if ('attachEvent' in obj) { - obj.attachEvent('on' + type, handler); + _moveEnd: function (zoomChanged) { + // @event zoomend: Event + // Fired when the map has changed, after any animations. + if (zoomChanged) { + this.fire('zoomend'); } - obj[eventsKey] = obj[eventsKey] || {}; - obj[eventsKey][id] = handler; + // @event moveend: Event + // Fired when the center of the map stops changing (e.g. user stopped + // dragging the map). + return this.fire('moveend'); + }, + _stop: function () { + cancelAnimFrame(this._flyToFrame); + if (this._panAnim) { + this._panAnim.stop(); + } return this; }, - _off: function (obj, type, fn, context) { + _rawPanBy: function (offset) { + setPosition(this._mapPane, this._getMapPanePos().subtract(offset)); + }, - var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''), - handler = obj[eventsKey] && obj[eventsKey][id]; + _getZoomSpan: function () { + return this.getMaxZoom() - this.getMinZoom(); + }, - if (!handler) { return this; } + _panInsideMaxBounds: function () { + if (!this._enforcingBounds) { + this.panInsideBounds(this.options.maxBounds); + } + }, - if (L.Browser.pointer && type.indexOf('touch') === 0) { - this.removePointerListener(obj, type, id); + _checkIfLoaded: function () { + if (!this._loaded) { + throw new Error('Set map center and zoom first.'); + } + }, - } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) { - this.removeDoubleTapListener(obj, id); + // DOM event handling - } else if ('removeEventListener' in obj) { + // @section Interaction events + _initEvents: function (remove$$1) { + this._targets = {}; + this._targets[stamp(this._container)] = this; - if (type === 'mousewheel') { - obj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false); + var onOff = remove$$1 ? off : on; - } else { - obj.removeEventListener( - type === 'mouseenter' ? 'mouseover' : - type === 'mouseleave' ? 'mouseout' : type, handler, false); - } + // @event click: MouseEvent + // Fired when the user clicks (or taps) the map. + // @event dblclick: MouseEvent + // Fired when the user double-clicks (or double-taps) the map. + // @event mousedown: MouseEvent + // Fired when the user pushes the mouse button on the map. + // @event mouseup: MouseEvent + // Fired when the user releases the mouse button on the map. + // @event mouseover: MouseEvent + // Fired when the mouse enters the map. + // @event mouseout: MouseEvent + // Fired when the mouse leaves the map. + // @event mousemove: MouseEvent + // Fired while the mouse moves over the map. + // @event contextmenu: MouseEvent + // Fired when the user pushes the right mouse button on the map, prevents + // default browser context menu from showing if there are listeners on + // this event. Also fired on mobile when the user holds a single touch + // for a second (also called long press). + // @event keypress: KeyboardEvent + // Fired when the user presses a key from the keyboard while the map is focused. + onOff(this._container, 'click dblclick mousedown mouseup ' + + 'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this); - } else if ('detachEvent' in obj) { - obj.detachEvent('on' + type, handler); + if (this.options.trackResize) { + onOff(window, 'resize', this._onResize, this); } - obj[eventsKey][id] = null; + if (any3d && this.options.transform3DLimit) { + (remove$$1 ? this.off : this.on).call(this, 'moveend', this._onMoveEnd); + } + }, - return this; + _onResize: function () { + cancelAnimFrame(this._resizeRequest); + this._resizeRequest = requestAnimFrame( + function () { this.invalidateSize({debounceMoveend: true}); }, this); }, - // @function stopPropagation(ev: DOMEvent): this - // Stop the given event from propagation to parent elements. Used inside the listener functions: - // ```js - // L.DomEvent.on(div, 'click', function (ev) { - // L.DomEvent.stopPropagation(ev); - // }); - // ``` - stopPropagation: function (e) { + _onScroll: function () { + this._container.scrollTop = 0; + this._container.scrollLeft = 0; + }, - if (e.stopPropagation) { - e.stopPropagation(); - } else if (e.originalEvent) { // In case of Leaflet event. - e.originalEvent._stopped = true; - } else { - e.cancelBubble = true; + _onMoveEnd: function () { + var pos = this._getMapPanePos(); + if (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) { + // https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have + // a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/ + this._resetView(this.getCenter(), this.getZoom()); } - L.DomEvent._skipped(e); + }, - return this; + _findEventTargets: function (e, type) { + var targets = [], + target, + isHover = type === 'mouseout' || type === 'mouseover', + src = e.target || e.srcElement, + dragging = false; + + while (src) { + target = this._targets[stamp(src)]; + if (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) { + // Prevent firing click after you just dragged an object. + dragging = true; + break; + } + if (target && target.listens(type, true)) { + if (isHover && !isExternalTarget(src, e)) { break; } + targets.push(target); + if (isHover) { break; } + } + if (src === this._container) { break; } + src = src.parentNode; + } + if (!targets.length && !dragging && !isHover && isExternalTarget(src, e)) { + targets = [this]; + } + return targets; }, - // @function disableScrollPropagation(el: HTMLElement): this - // Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants). - disableScrollPropagation: function (el) { - return L.DomEvent.on(el, 'mousewheel', L.DomEvent.stopPropagation); + _handleDOMEvent: function (e) { + if (!this._loaded || skipped(e)) { return; } + + var type = e.type; + + if (type === 'mousedown' || type === 'keypress') { + // prevents outline when clicking on keyboard-focusable element + preventOutline(e.target || e.srcElement); + } + + this._fireDOMEvent(e, type); }, - // @function disableClickPropagation(el: HTMLElement): this - // Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`, - // `'mousedown'` and `'touchstart'` events (plus browser variants). - disableClickPropagation: function (el) { - var stop = L.DomEvent.stopPropagation; + _mouseEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu'], - L.DomEvent.on(el, L.Draggable.START.join(' '), stop); + _fireDOMEvent: function (e, type, targets) { - return L.DomEvent.on(el, { - click: L.DomEvent._fakeStop, - dblclick: stop - }); + if (e.type === 'click') { + // Fire a synthetic 'preclick' event which propagates up (mainly for closing popups). + // @event preclick: MouseEvent + // Fired before mouse click on the map (sometimes useful when you + // want something to happen on click before any existing click + // handlers start running). + var synth = extend({}, e); + synth.type = 'preclick'; + this._fireDOMEvent(synth, synth.type, targets); + } + + if (e._stopped) { return; } + + // Find the layer the event is propagating from and its parents. + targets = (targets || []).concat(this._findEventTargets(e, type)); + + if (!targets.length) { return; } + + var target = targets[0]; + if (type === 'contextmenu' && target.listens(type, true)) { + preventDefault(e); + } + + var data = { + originalEvent: e + }; + + if (e.type !== 'keypress') { + var isMarker = (target.options && 'icon' in target.options); + data.containerPoint = isMarker ? + this.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e); + data.layerPoint = this.containerPointToLayerPoint(data.containerPoint); + data.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint); + } + + for (var i = 0; i < targets.length; i++) { + targets[i].fire(type, data, true); + if (data.originalEvent._stopped || + (targets[i].options.bubblingMouseEvents === false && indexOf(this._mouseEvents, type) !== -1)) { return; } + } + }, + + _draggableMoved: function (obj) { + obj = obj.dragging && obj.dragging.enabled() ? obj : this; + return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved()); + }, + + _clearHandlers: function () { + for (var i = 0, len = this._handlers.length; i < len; i++) { + this._handlers[i].disable(); + } }, - // @function preventDefault(ev: DOMEvent): this - // Prevents the default action of the DOM Event `ev` from happening (such as - // following a link in the href of the a element, or doing a POST request - // with page reload when a `` is submitted). - // Use it inside listener functions. - preventDefault: function (e) { + // @section Other Methods - if (e.preventDefault) { - e.preventDefault(); + // @method whenReady(fn: Function, context?: Object): this + // Runs the given function `fn` when the map gets initialized with + // a view (center and zoom) and at least one layer, or immediately + // if it's already initialized, optionally passing a function context. + whenReady: function (callback, context) { + if (this._loaded) { + callback.call(context || this, {target: this}); } else { - e.returnValue = false; + this.on('load', callback, context); } return this; }, - // @function stop(ev): this - // Does `stopPropagation` and `preventDefault` at the same time. - stop: function (e) { - return L.DomEvent - .preventDefault(e) - .stopPropagation(e); - }, - // @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point - // Gets normalized mouse position from a DOM event relative to the - // `container` or to the whole page if not specified. - getMousePosition: function (e, container) { - if (!container) { - return new L.Point(e.clientX, e.clientY); - } + // private methods for getting map state + + _getMapPanePos: function () { + return getPosition(this._mapPane) || new Point(0, 0); + }, - var rect = container.getBoundingClientRect(); + _moved: function () { + var pos = this._getMapPanePos(); + return pos && !pos.equals([0, 0]); + }, - return new L.Point( - e.clientX - rect.left - container.clientLeft, - e.clientY - rect.top - container.clientTop); + _getTopLeftPoint: function (center, zoom) { + var pixelOrigin = center && zoom !== undefined ? + this._getNewPixelOrigin(center, zoom) : + this.getPixelOrigin(); + return pixelOrigin.subtract(this._getMapPanePos()); }, - // Chrome on Win scrolls double the pixels as in other platforms (see #4538), - // and Firefox scrolls device pixels, not CSS pixels - _wheelPxFactor: (L.Browser.win && L.Browser.chrome) ? 2 : - L.Browser.gecko ? window.devicePixelRatio : - 1, + _getNewPixelOrigin: function (center, zoom) { + var viewHalf = this.getSize()._divideBy(2); + return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round(); + }, - // @function getWheelDelta(ev: DOMEvent): Number - // Gets normalized wheel delta from a mousewheel DOM event, in vertical - // pixels scrolled (negative if scrolling down). - // Events from pointing devices without precise scrolling are mapped to - // a best guess of 60 pixels. - getWheelDelta: function (e) { - return (L.Browser.edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta - (e.deltaY && e.deltaMode === 0) ? -e.deltaY / L.DomEvent._wheelPxFactor : // Pixels - (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines - (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages - (e.deltaX || e.deltaZ) ? 0 : // Skip horizontal/depth wheel events - e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels - (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines - e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages - 0; + _latLngToNewLayerPoint: function (latlng, zoom, center) { + var topLeft = this._getNewPixelOrigin(center, zoom); + return this.project(latlng, zoom)._subtract(topLeft); }, - _skipEvents: {}, + _latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) { + var topLeft = this._getNewPixelOrigin(center, zoom); + return toBounds([ + this.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft), + this.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft), + this.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft), + this.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft) + ]); + }, - _fakeStop: function (e) { - // fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e) - L.DomEvent._skipEvents[e.type] = true; + // layer point of the current center + _getCenterLayerPoint: function () { + return this.containerPointToLayerPoint(this.getSize()._divideBy(2)); }, - _skipped: function (e) { - var skipped = this._skipEvents[e.type]; - // reset when checking, as it's only used in map container and propagates outside of the map - this._skipEvents[e.type] = false; - return skipped; + // offset of the specified place to the current center in pixels + _getCenterOffset: function (latlng) { + return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint()); }, - // check if element really left/entered the event target (for mouseenter/mouseleave) - _isExternalTarget: function (el, e) { + // adjust center for view to get inside bounds + _limitCenter: function (center, zoom, bounds) { - var related = e.relatedTarget; + if (!bounds) { return center; } - if (!related) { return true; } + var centerPoint = this.project(center, zoom), + viewHalf = this.getSize().divideBy(2), + viewBounds = new Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)), + offset = this._getBoundsOffset(viewBounds, bounds, zoom); - try { - while (related && (related !== el)) { - related = related.parentNode; - } - } catch (err) { - return false; + // If offset is less than a pixel, ignore. + // This prevents unstable projections from getting into + // an infinite loop of tiny offsets. + if (offset.round().equals([0, 0])) { + return center; } - return (related !== el); + + return this.unproject(centerPoint.add(offset), zoom); }, - // this is a horrible workaround for a bug in Android where a single touch triggers two click events - _filterClick: function (e, handler) { - var timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)), - elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick); + // adjust offset for view to get inside bounds + _limitOffset: function (offset, bounds) { + if (!bounds) { return offset; } - // are they closer together than 500ms yet more than 100ms? - // Android typically triggers them ~300ms apart while multiple listeners - // on the same event should be triggered far faster; - // or check if click is simulated on the element, and if it is, reject any non-simulated events + var viewBounds = this.getPixelBounds(), + newBounds = new Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset)); - if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) { - L.DomEvent.stop(e); - return; + return offset.add(this._getBoundsOffset(newBounds, bounds)); + }, + + // returns offset needed for pxBounds to get inside maxBounds at a specified zoom + _getBoundsOffset: function (pxBounds, maxBounds, zoom) { + var projectedMaxBounds = toBounds( + this.project(maxBounds.getNorthEast(), zoom), + this.project(maxBounds.getSouthWest(), zoom) + ), + minOffset = projectedMaxBounds.min.subtract(pxBounds.min), + maxOffset = projectedMaxBounds.max.subtract(pxBounds.max), + + dx = this._rebound(minOffset.x, -maxOffset.x), + dy = this._rebound(minOffset.y, -maxOffset.y); + + return new Point(dx, dy); + }, + + _rebound: function (left, right) { + return left + right > 0 ? + Math.round(left - right) / 2 : + Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right)); + }, + + _limitZoom: function (zoom) { + var min = this.getMinZoom(), + max = this.getMaxZoom(), + snap = any3d ? this.options.zoomSnap : 1; + if (snap) { + zoom = Math.round(zoom / snap) * snap; } - L.DomEvent._lastClick = timeStamp; + return Math.max(min, Math.min(max, zoom)); + }, - handler(e); - } -}; + _onPanTransitionStep: function () { + this.fire('move'); + }, -// @function addListener(…): this -// Alias to [`L.DomEvent.on`](#domevent-on) -L.DomEvent.addListener = L.DomEvent.on; + _onPanTransitionEnd: function () { + removeClass(this._mapPane, 'leaflet-pan-anim'); + this.fire('moveend'); + }, -// @function removeListener(…): this -// Alias to [`L.DomEvent.off`](#domevent-off) -L.DomEvent.removeListener = L.DomEvent.off; - - - -/* - * @class PosAnimation - * @aka L.PosAnimation - * @inherits Evented - * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9. - * - * @example - * ```js - * var fx = new L.PosAnimation(); - * fx.run(el, [300, 500], 0.5); - * ``` - * - * @constructor L.PosAnimation() - * Creates a `PosAnimation` object. - * - */ - -L.PosAnimation = L.Evented.extend({ - - // @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number) - // Run an animation of a given element to a new position, optionally setting - // duration in seconds (`0.25` by default) and easing linearity factor (3rd - // argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1), - // `0.5` by default). - run: function (el, newPos, duration, easeLinearity) { - this.stop(); - - this._el = el; - this._inProgress = true; - this._duration = duration || 0.25; - this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2); - - this._startPos = L.DomUtil.getPosition(el); - this._offset = newPos.subtract(this._startPos); - this._startTime = +new Date(); - - // @event start: Event - // Fired when the animation starts - this.fire('start'); - - this._animate(); - }, - - // @method stop() - // Stops the animation (if currently running). - stop: function () { - if (!this._inProgress) { return; } - - this._step(true); - this._complete(); - }, - - _animate: function () { - // animation loop - this._animId = L.Util.requestAnimFrame(this._animate, this); - this._step(); - }, - - _step: function (round) { - var elapsed = (+new Date()) - this._startTime, - duration = this._duration * 1000; - - if (elapsed < duration) { - this._runFrame(this._easeOut(elapsed / duration), round); - } else { - this._runFrame(1); - this._complete(); - } - }, - - _runFrame: function (progress, round) { - var pos = this._startPos.add(this._offset.multiplyBy(progress)); - if (round) { - pos._round(); - } - L.DomUtil.setPosition(this._el, pos); - - // @event step: Event - // Fired continuously during the animation. - this.fire('step'); - }, - - _complete: function () { - L.Util.cancelAnimFrame(this._animId); - - this._inProgress = false; - // @event end: Event - // Fired when the animation ends. - this.fire('end'); - }, - - _easeOut: function (t) { - return 1 - Math.pow(1 - t, this._easeOutPower); - } -}); - - - -/* - * @namespace Projection - * @projection L.Projection.Mercator - * - * Elliptical Mercator projection — more complex than Spherical Mercator. Takes into account that Earth is a geoid, not a perfect sphere. Used by the EPSG:3395 CRS. - */ + _tryAnimatedPan: function (center, options) { + // difference between the new and current centers in pixels + var offset = this._getCenterOffset(center)._floor(); -L.Projection.Mercator = { - R: 6378137, - R_MINOR: 6356752.314245179, + // don't animate too far unless animate: true specified in options + if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; } - bounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]), + this.panBy(offset, options); - project: function (latlng) { - var d = Math.PI / 180, - r = this.R, - y = latlng.lat * d, - tmp = this.R_MINOR / r, - e = Math.sqrt(1 - tmp * tmp), - con = e * Math.sin(y); + return true; + }, - var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2); - y = -r * Math.log(Math.max(ts, 1E-10)); + _createAnimProxy: function () { + + var proxy = this._proxy = create$1('div', 'leaflet-proxy leaflet-zoom-animated'); + this._panes.mapPane.appendChild(proxy); + + this.on('zoomanim', function (e) { + var prop = TRANSFORM, + transform = this._proxy.style[prop]; + + setTransform(this._proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1)); + + // workaround for case when transform is the same and so transitionend event is not fired + if (transform === this._proxy.style[prop] && this._animatingZoom) { + this._onZoomTransitionEnd(); + } + }, this); + + this.on('load moveend', function () { + var c = this.getCenter(), + z = this.getZoom(); + setTransform(this._proxy, this.project(c, z), this.getZoomScale(z, 1)); + }, this); - return new L.Point(latlng.lng * d * r, y); + this._on('unload', this._destroyAnimProxy, this); }, - unproject: function (point) { - var d = 180 / Math.PI, - r = this.R, - tmp = this.R_MINOR / r, - e = Math.sqrt(1 - tmp * tmp), - ts = Math.exp(-point.y / r), - phi = Math.PI / 2 - 2 * Math.atan(ts); + _destroyAnimProxy: function () { + remove(this._proxy); + delete this._proxy; + }, - for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) { - con = e * Math.sin(phi); - con = Math.pow((1 - con) / (1 + con), e / 2); - dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi; - phi += dphi; + _catchTransitionEnd: function (e) { + if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) { + this._onZoomTransitionEnd(); + } + }, + + _nothingToAnimate: function () { + return !this._container.getElementsByClassName('leaflet-zoom-animated').length; + }, + + _tryAnimatedZoom: function (center, zoom, options) { + + if (this._animatingZoom) { return true; } + + options = options || {}; + + // don't animate if disabled, not supported or zoom difference is too large + if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() || + Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; } + + // offset is the pixel coords of the zoom origin relative to the current center + var scale = this.getZoomScale(zoom), + offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale); + + // don't animate if the zoom origin isn't within one screen from the current center, unless forced + if (options.animate !== true && !this.getSize().contains(offset)) { return false; } + + requestAnimFrame(function () { + this + ._moveStart(true) + ._animateZoom(center, zoom, true); + }, this); + + return true; + }, + + _animateZoom: function (center, zoom, startAnim, noUpdate) { + if (startAnim) { + this._animatingZoom = true; + + // remember what center/zoom to set after animation + this._animateToCenter = center; + this._animateToZoom = zoom; + + addClass(this._mapPane, 'leaflet-zoom-anim'); } - return new L.LatLng(phi * d, point.x * d / r); + // @event zoomanim: ZoomAnimEvent + // Fired on every frame of a zoom animation + this.fire('zoomanim', { + center: center, + zoom: zoom, + noUpdate: noUpdate + }); + + // Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693 + setTimeout(bind(this._onZoomTransitionEnd, this), 250); + }, + + _onZoomTransitionEnd: function () { + if (!this._animatingZoom) { return; } + + removeClass(this._mapPane, 'leaflet-zoom-anim'); + + this._animatingZoom = false; + + this._move(this._animateToCenter, this._animateToZoom); + + // This anim frame should prevent an obscure iOS webkit tile loading race condition. + requestAnimFrame(function () { + this._moveEnd(true); + }, this); } -}; - - +}); + +// @section + +// @factory L.map(id: String, options?: Map options) +// Instantiates a map object given the DOM ID of a `
` element +// and optionally an object literal with `Map options`. +// +// @alternative +// @factory L.map(el: HTMLElement, options?: Map options) +// Instantiates a map object given an instance of a `
` HTML element +// and optionally an object literal with `Map options`. +function createMap(id, options) { + return new Map(id, options); +} /* - * @namespace CRS - * @crs L.CRS.EPSG3395 + * @class Control + * @aka L.Control + * @inherits Class * - * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection. + * L.Control is a base class for implementing map controls. Handles positioning. + * All other controls extend from this class. */ -L.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, { - code: 'EPSG:3395', - projection: L.Projection.Mercator, +var Control = Class.extend({ + // @section + // @aka Control options + options: { + // @option position: String = 'topright' + // The position of the control (one of the map corners). Possible values are `'topleft'`, + // `'topright'`, `'bottomleft'` or `'bottomright'` + position: 'topright' + }, - transformation: (function () { - var scale = 0.5 / (Math.PI * L.Projection.Mercator.R); - return new L.Transformation(scale, 0.5, -scale, 0.5); - }()) -}); - - - -/* - * @class GridLayer - * @inherits Layer - * @aka L.GridLayer - * - * Generic class for handling a tiled grid of HTML elements. This is the base class for all tile layers and replaces `TileLayer.Canvas`. - * GridLayer can be extended to create a tiled grid of HTML elements like ``, `` or `
`. GridLayer will handle creating and animating these DOM elements for you. - * - * - * @section Synchronous usage - * @example - * - * To create a custom layer, extend GridLayer and implement the `createTile()` method, which will be passed a `Point` object with the `x`, `y`, and `z` (zoom level) coordinates to draw your tile. - * - * ```js - * var CanvasLayer = L.GridLayer.extend({ - * createTile: function(coords){ - * // create a element for drawing - * var tile = L.DomUtil.create('canvas', 'leaflet-tile'); - * - * // setup tile width and height according to the options - * var size = this.getTileSize(); - * tile.width = size.x; - * tile.height = size.y; - * - * // get a canvas context and draw something on it using coords.x, coords.y and coords.z - * var ctx = tile.getContext('2d'); - * - * // return the tile so it can be rendered on screen - * return tile; - * } - * }); - * ``` - * - * @section Asynchronous usage - * @example - * - * Tile creation can also be asynchronous, this is useful when using a third-party drawing library. Once the tile is finished drawing it can be passed to the `done()` callback. - * - * ```js - * var CanvasLayer = L.GridLayer.extend({ - * createTile: function(coords, done){ - * var error; - * - * // create a element for drawing - * var tile = L.DomUtil.create('canvas', 'leaflet-tile'); - * - * // setup tile width and height according to the options - * var size = this.getTileSize(); - * tile.width = size.x; - * tile.height = size.y; - * - * // draw something asynchronously and pass the tile to the done() callback - * setTimeout(function() { - * done(error, tile); - * }, 1000); - * - * return tile; - * } - * }); - * ``` - * - * @section - */ - - -L.GridLayer = L.Layer.extend({ - - // @section - // @aka GridLayer options - options: { - // @option tileSize: Number|Point = 256 - // Width and height of tiles in the grid. Use a number if width and height are equal, or `L.point(width, height)` otherwise. - tileSize: 256, - - // @option opacity: Number = 1.0 - // Opacity of the tiles. Can be used in the `createTile()` function. - opacity: 1, - - // @option updateWhenIdle: Boolean = depends - // If `false`, new tiles are loaded during panning, otherwise only after it (for better performance). `true` by default on mobile browsers, otherwise `false`. - updateWhenIdle: L.Browser.mobile, - - // @option updateWhenZooming: Boolean = true - // By default, a smooth zoom animation (during a [touch zoom](#map-touchzoom) or a [`flyTo()`](#map-flyto)) will update grid layers every integer zoom level. Setting this option to `false` will update the grid layer only when the smooth animation ends. - updateWhenZooming: true, - - // @option updateInterval: Number = 200 - // Tiles will not update more than once every `updateInterval` milliseconds when panning. - updateInterval: 200, - - // @option zIndex: Number = 1 - // The explicit zIndex of the tile layer. - zIndex: 1, - - // @option bounds: LatLngBounds = undefined - // If set, tiles will only be loaded inside the set `LatLngBounds`. - bounds: null, - - // @option minZoom: Number = 0 - // The minimum zoom level that tiles will be loaded at. By default the entire map. - minZoom: 0, - - // @option maxZoom: Number = undefined - // The maximum zoom level that tiles will be loaded at. - maxZoom: undefined, - - // @option noWrap: Boolean = false - // Whether the layer is wrapped around the antimeridian. If `true`, the - // GridLayer will only be displayed once at low zoom levels. Has no - // effect when the [map CRS](#map-crs) doesn't wrap around. Can be used - // in combination with [`bounds`](#gridlayer-bounds) to prevent requesting - // tiles outside the CRS limits. - noWrap: false, - - // @option pane: String = 'tilePane' - // `Map pane` where the grid layer will be added. - pane: 'tilePane', - - // @option className: String = '' - // A custom class name to assign to the tile layer. Empty by default. - className: '', - - // @option keepBuffer: Number = 2 - // When panning the map, keep this many rows and columns of tiles before unloading them. - keepBuffer: 2 - }, - - initialize: function (options) { - L.setOptions(this, options); - }, - - onAdd: function () { - this._initContainer(); - - this._levels = {}; - this._tiles = {}; - - this._resetView(); - this._update(); - }, - - beforeAdd: function (map) { - map._addZoomLimit(this); - }, - - onRemove: function (map) { - this._removeAllTiles(); - L.DomUtil.remove(this._container); - map._removeZoomLimit(this); - this._container = null; - this._tileZoom = null; - }, - - // @method bringToFront: this - // Brings the tile layer to the top of all tile layers. - bringToFront: function () { - if (this._map) { - L.DomUtil.toFront(this._container); - this._setAutoZIndex(Math.max); - } - return this; - }, - - // @method bringToBack: this - // Brings the tile layer to the bottom of all tile layers. - bringToBack: function () { - if (this._map) { - L.DomUtil.toBack(this._container); - this._setAutoZIndex(Math.min); - } - return this; - }, - - // @method getContainer: HTMLElement - // Returns the HTML element that contains the tiles for this layer. - getContainer: function () { - return this._container; - }, - - // @method setOpacity(opacity: Number): this - // Changes the [opacity](#gridlayer-opacity) of the grid layer. - setOpacity: function (opacity) { - this.options.opacity = opacity; - this._updateOpacity(); - return this; - }, - - // @method setZIndex(zIndex: Number): this - // Changes the [zIndex](#gridlayer-zindex) of the grid layer. - setZIndex: function (zIndex) { - this.options.zIndex = zIndex; - this._updateZIndex(); - - return this; - }, - - // @method isLoading: Boolean - // Returns `true` if any tile in the grid layer has not finished loading. - isLoading: function () { - return this._loading; - }, - - // @method redraw: this - // Causes the layer to clear all the tiles and request them again. - redraw: function () { - if (this._map) { - this._removeAllTiles(); - this._update(); - } - return this; - }, - - getEvents: function () { - var events = { - viewprereset: this._invalidateAll, - viewreset: this._resetView, - zoom: this._resetView, - moveend: this._onMoveEnd - }; - - if (!this.options.updateWhenIdle) { - // update tiles on move, but not more often than once per given interval - if (!this._onMove) { - this._onMove = L.Util.throttle(this._onMoveEnd, this.options.updateInterval, this); - } - - events.move = this._onMove; - } - - if (this._zoomAnimated) { - events.zoomanim = this._animateZoom; - } - - return events; - }, - - // @section Extension methods - // Layers extending `GridLayer` shall reimplement the following method. - // @method createTile(coords: Object, done?: Function): HTMLElement - // Called only internally, must be overriden by classes extending `GridLayer`. - // Returns the `HTMLElement` corresponding to the given `coords`. If the `done` callback - // is specified, it must be called when the tile has finished loading and drawing. - createTile: function () { - return document.createElement('div'); - }, - - // @section - // @method getTileSize: Point - // Normalizes the [tileSize option](#gridlayer-tilesize) into a point. Used by the `createTile()` method. - getTileSize: function () { - var s = this.options.tileSize; - return s instanceof L.Point ? s : new L.Point(s, s); - }, - - _updateZIndex: function () { - if (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) { - this._container.style.zIndex = this.options.zIndex; - } - }, - - _setAutoZIndex: function (compare) { - // go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back) - - var layers = this.getPane().children, - edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min - - for (var i = 0, len = layers.length, zIndex; i < len; i++) { - - zIndex = layers[i].style.zIndex; - - if (layers[i] !== this._container && zIndex) { - edgeZIndex = compare(edgeZIndex, +zIndex); - } - } - - if (isFinite(edgeZIndex)) { - this.options.zIndex = edgeZIndex + compare(-1, 1); - this._updateZIndex(); - } - }, - - _updateOpacity: function () { - if (!this._map) { return; } - - // IE doesn't inherit filter opacity properly, so we're forced to set it on tiles - if (L.Browser.ielt9) { return; } - - L.DomUtil.setOpacity(this._container, this.options.opacity); - - var now = +new Date(), - nextFrame = false, - willPrune = false; - - for (var key in this._tiles) { - var tile = this._tiles[key]; - if (!tile.current || !tile.loaded) { continue; } - - var fade = Math.min(1, (now - tile.loaded) / 200); - - L.DomUtil.setOpacity(tile.el, fade); - if (fade < 1) { - nextFrame = true; - } else { - if (tile.active) { willPrune = true; } - tile.active = true; - } - } - - if (willPrune && !this._noPrune) { this._pruneTiles(); } - - if (nextFrame) { - L.Util.cancelAnimFrame(this._fadeFrame); - this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this); - } - }, - - _initContainer: function () { - if (this._container) { return; } - - this._container = L.DomUtil.create('div', 'leaflet-layer ' + (this.options.className || '')); - this._updateZIndex(); - - if (this.options.opacity < 1) { - this._updateOpacity(); - } - - this.getPane().appendChild(this._container); - }, - - _updateLevels: function () { - - var zoom = this._tileZoom, - maxZoom = this.options.maxZoom; - - if (zoom === undefined) { return undefined; } - - for (var z in this._levels) { - if (this._levels[z].el.children.length || z === zoom) { - this._levels[z].el.style.zIndex = maxZoom - Math.abs(zoom - z); - } else { - L.DomUtil.remove(this._levels[z].el); - this._removeTilesAtZoom(z); - delete this._levels[z]; - } - } - - var level = this._levels[zoom], - map = this._map; - - if (!level) { - level = this._levels[zoom] = {}; - - level.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container); - level.el.style.zIndex = maxZoom; - - level.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round(); - level.zoom = zoom; - - this._setZoomTransform(level, map.getCenter(), map.getZoom()); - - // force the browser to consider the newly added element for transition - L.Util.falseFn(level.el.offsetWidth); - } - - this._level = level; - - return level; - }, - - _pruneTiles: function () { - if (!this._map) { - return; - } - - var key, tile; - - var zoom = this._map.getZoom(); - if (zoom > this.options.maxZoom || - zoom < this.options.minZoom) { - this._removeAllTiles(); - return; - } - - for (key in this._tiles) { - tile = this._tiles[key]; - tile.retain = tile.current; - } - - for (key in this._tiles) { - tile = this._tiles[key]; - if (tile.current && !tile.active) { - var coords = tile.coords; - if (!this._retainParent(coords.x, coords.y, coords.z, coords.z - 5)) { - this._retainChildren(coords.x, coords.y, coords.z, coords.z + 2); - } - } - } - - for (key in this._tiles) { - if (!this._tiles[key].retain) { - this._removeTile(key); - } - } - }, - - _removeTilesAtZoom: function (zoom) { - for (var key in this._tiles) { - if (this._tiles[key].coords.z !== zoom) { - continue; - } - this._removeTile(key); - } - }, - - _removeAllTiles: function () { - for (var key in this._tiles) { - this._removeTile(key); - } - }, - - _invalidateAll: function () { - for (var z in this._levels) { - L.DomUtil.remove(this._levels[z].el); - delete this._levels[z]; - } - this._removeAllTiles(); - - this._tileZoom = null; - }, - - _retainParent: function (x, y, z, minZoom) { - var x2 = Math.floor(x / 2), - y2 = Math.floor(y / 2), - z2 = z - 1, - coords2 = new L.Point(+x2, +y2); - coords2.z = +z2; - - var key = this._tileCoordsToKey(coords2), - tile = this._tiles[key]; - - if (tile && tile.active) { - tile.retain = true; - return true; - - } else if (tile && tile.loaded) { - tile.retain = true; - } - - if (z2 > minZoom) { - return this._retainParent(x2, y2, z2, minZoom); - } - - return false; - }, - - _retainChildren: function (x, y, z, maxZoom) { - - for (var i = 2 * x; i < 2 * x + 2; i++) { - for (var j = 2 * y; j < 2 * y + 2; j++) { - - var coords = new L.Point(i, j); - coords.z = z + 1; - - var key = this._tileCoordsToKey(coords), - tile = this._tiles[key]; - - if (tile && tile.active) { - tile.retain = true; - continue; - - } else if (tile && tile.loaded) { - tile.retain = true; - } - - if (z + 1 < maxZoom) { - this._retainChildren(i, j, z + 1, maxZoom); - } - } - } - }, - - _resetView: function (e) { - var animating = e && (e.pinch || e.flyTo); - this._setView(this._map.getCenter(), this._map.getZoom(), animating, animating); - }, - - _animateZoom: function (e) { - this._setView(e.center, e.zoom, true, e.noUpdate); - }, - - _setView: function (center, zoom, noPrune, noUpdate) { - var tileZoom = Math.round(zoom); - if ((this.options.maxZoom !== undefined && tileZoom > this.options.maxZoom) || - (this.options.minZoom !== undefined && tileZoom < this.options.minZoom)) { - tileZoom = undefined; - } - - var tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom); - - if (!noUpdate || tileZoomChanged) { - - this._tileZoom = tileZoom; - - if (this._abortLoading) { - this._abortLoading(); - } - - this._updateLevels(); - this._resetGrid(); - - if (tileZoom !== undefined) { - this._update(center); - } - - if (!noPrune) { - this._pruneTiles(); - } - - // Flag to prevent _updateOpacity from pruning tiles during - // a zoom anim or a pinch gesture - this._noPrune = !!noPrune; - } - - this._setZoomTransforms(center, zoom); - }, - - _setZoomTransforms: function (center, zoom) { - for (var i in this._levels) { - this._setZoomTransform(this._levels[i], center, zoom); - } - }, - - _setZoomTransform: function (level, center, zoom) { - var scale = this._map.getZoomScale(zoom, level.zoom), - translate = level.origin.multiplyBy(scale) - .subtract(this._map._getNewPixelOrigin(center, zoom)).round(); - - if (L.Browser.any3d) { - L.DomUtil.setTransform(level.el, translate, scale); - } else { - L.DomUtil.setPosition(level.el, translate); - } - }, - - _resetGrid: function () { - var map = this._map, - crs = map.options.crs, - tileSize = this._tileSize = this.getTileSize(), - tileZoom = this._tileZoom; - - var bounds = this._map.getPixelWorldBounds(this._tileZoom); - if (bounds) { - this._globalTileRange = this._pxBoundsToTileRange(bounds); - } - - this._wrapX = crs.wrapLng && !this.options.noWrap && [ - Math.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize.x), - Math.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize.y) - ]; - this._wrapY = crs.wrapLat && !this.options.noWrap && [ - Math.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize.x), - Math.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize.y) - ]; - }, - - _onMoveEnd: function () { - if (!this._map || this._map._animatingZoom) { return; } - - this._update(); - }, - - _getTiledPixelBounds: function (center) { - var map = this._map, - mapZoom = map._animatingZoom ? Math.max(map._animateToZoom, map.getZoom()) : map.getZoom(), - scale = map.getZoomScale(mapZoom, this._tileZoom), - pixelCenter = map.project(center, this._tileZoom).floor(), - halfSize = map.getSize().divideBy(scale * 2); - - return new L.Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize)); - }, - - // Private method to load tiles in the grid's active zoom level according to map bounds - _update: function (center) { - var map = this._map; - if (!map) { return; } - var zoom = map.getZoom(); - - if (center === undefined) { center = map.getCenter(); } - if (this._tileZoom === undefined) { return; } // if out of minzoom/maxzoom - - var pixelBounds = this._getTiledPixelBounds(center), - tileRange = this._pxBoundsToTileRange(pixelBounds), - tileCenter = tileRange.getCenter(), - queue = [], - margin = this.options.keepBuffer, - noPruneRange = new L.Bounds(tileRange.getBottomLeft().subtract([margin, -margin]), - tileRange.getTopRight().add([margin, -margin])); - - for (var key in this._tiles) { - var c = this._tiles[key].coords; - if (c.z !== this._tileZoom || !noPruneRange.contains(L.point(c.x, c.y))) { - this._tiles[key].current = false; - } - } - - // _update just loads more tiles. If the tile zoom level differs too much - // from the map's, let _setView reset levels and prune old tiles. - if (Math.abs(zoom - this._tileZoom) > 1) { this._setView(center, zoom); return; } - - // create a queue of coordinates to load tiles from - for (var j = tileRange.min.y; j <= tileRange.max.y; j++) { - for (var i = tileRange.min.x; i <= tileRange.max.x; i++) { - var coords = new L.Point(i, j); - coords.z = this._tileZoom; - - if (!this._isValidTile(coords)) { continue; } - - var tile = this._tiles[this._tileCoordsToKey(coords)]; - if (tile) { - tile.current = true; - } else { - queue.push(coords); - } - } - } - - // sort tile queue to load tiles in order of their distance to center - queue.sort(function (a, b) { - return a.distanceTo(tileCenter) - b.distanceTo(tileCenter); - }); - - if (queue.length !== 0) { - // if it's the first batch of tiles to load - if (!this._loading) { - this._loading = true; - // @event loading: Event - // Fired when the grid layer starts loading tiles. - this.fire('loading'); - } - - // create DOM fragment to append tiles in one batch - var fragment = document.createDocumentFragment(); - - for (i = 0; i < queue.length; i++) { - this._addTile(queue[i], fragment); - } - - this._level.el.appendChild(fragment); - } - }, - - _isValidTile: function (coords) { - var crs = this._map.options.crs; - - if (!crs.infinite) { - // don't load tile if it's out of bounds and not wrapped - var bounds = this._globalTileRange; - if ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) || - (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; } - } - - if (!this.options.bounds) { return true; } - - // don't load tile if it doesn't intersect the bounds in options - var tileBounds = this._tileCoordsToBounds(coords); - return L.latLngBounds(this.options.bounds).overlaps(tileBounds); - }, - - _keyToBounds: function (key) { - return this._tileCoordsToBounds(this._keyToTileCoords(key)); - }, - - // converts tile coordinates to its geographical bounds - _tileCoordsToBounds: function (coords) { - - var map = this._map, - tileSize = this.getTileSize(), - - nwPoint = coords.scaleBy(tileSize), - sePoint = nwPoint.add(tileSize), - - nw = map.unproject(nwPoint, coords.z), - se = map.unproject(sePoint, coords.z), - bounds = new L.LatLngBounds(nw, se); - - if (!this.options.noWrap) { - map.wrapLatLngBounds(bounds); - } - - return bounds; - }, - - // converts tile coordinates to key for the tile cache - _tileCoordsToKey: function (coords) { - return coords.x + ':' + coords.y + ':' + coords.z; - }, - - // converts tile cache key to coordinates - _keyToTileCoords: function (key) { - var k = key.split(':'), - coords = new L.Point(+k[0], +k[1]); - coords.z = +k[2]; - return coords; - }, - - _removeTile: function (key) { - var tile = this._tiles[key]; - if (!tile) { return; } - - L.DomUtil.remove(tile.el); - - delete this._tiles[key]; - - // @event tileunload: TileEvent - // Fired when a tile is removed (e.g. when a tile goes off the screen). - this.fire('tileunload', { - tile: tile.el, - coords: this._keyToTileCoords(key) - }); - }, - - _initTile: function (tile) { - L.DomUtil.addClass(tile, 'leaflet-tile'); - - var tileSize = this.getTileSize(); - tile.style.width = tileSize.x + 'px'; - tile.style.height = tileSize.y + 'px'; - - tile.onselectstart = L.Util.falseFn; - tile.onmousemove = L.Util.falseFn; - - // update opacity on tiles in IE7-8 because of filter inheritance problems - if (L.Browser.ielt9 && this.options.opacity < 1) { - L.DomUtil.setOpacity(tile, this.options.opacity); - } - - // without this hack, tiles disappear after zoom on Chrome for Android - // https://github.com/Leaflet/Leaflet/issues/2078 - if (L.Browser.android && !L.Browser.android23) { - tile.style.WebkitBackfaceVisibility = 'hidden'; - } - }, - - _addTile: function (coords, container) { - var tilePos = this._getTilePos(coords), - key = this._tileCoordsToKey(coords); - - var tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords)); - - this._initTile(tile); - - // if createTile is defined with a second argument ("done" callback), - // we know that tile is async and will be ready later; otherwise - if (this.createTile.length < 2) { - // mark tile as ready, but delay one frame for opacity animation to happen - L.Util.requestAnimFrame(L.bind(this._tileReady, this, coords, null, tile)); - } - - L.DomUtil.setPosition(tile, tilePos); - - // save tile in cache - this._tiles[key] = { - el: tile, - coords: coords, - current: true - }; - - container.appendChild(tile); - // @event tileloadstart: TileEvent - // Fired when a tile is requested and starts loading. - this.fire('tileloadstart', { - tile: tile, - coords: coords - }); - }, - - _tileReady: function (coords, err, tile) { - if (!this._map) { return; } - - if (err) { - // @event tileerror: TileErrorEvent - // Fired when there is an error loading a tile. - this.fire('tileerror', { - error: err, - tile: tile, - coords: coords - }); - } - - var key = this._tileCoordsToKey(coords); - - tile = this._tiles[key]; - if (!tile) { return; } - - tile.loaded = +new Date(); - if (this._map._fadeAnimated) { - L.DomUtil.setOpacity(tile.el, 0); - L.Util.cancelAnimFrame(this._fadeFrame); - this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this); - } else { - tile.active = true; - this._pruneTiles(); - } - - if (!err) { - L.DomUtil.addClass(tile.el, 'leaflet-tile-loaded'); - - // @event tileload: TileEvent - // Fired when a tile loads. - this.fire('tileload', { - tile: tile.el, - coords: coords - }); - } - - if (this._noTilesToLoad()) { - this._loading = false; - // @event load: Event - // Fired when the grid layer loaded all visible tiles. - this.fire('load'); - - if (L.Browser.ielt9 || !this._map._fadeAnimated) { - L.Util.requestAnimFrame(this._pruneTiles, this); - } else { - // Wait a bit more than 0.2 secs (the duration of the tile fade-in) - // to trigger a pruning. - setTimeout(L.bind(this._pruneTiles, this), 250); - } - } - }, - - _getTilePos: function (coords) { - return coords.scaleBy(this.getTileSize()).subtract(this._level.origin); - }, - - _wrapCoords: function (coords) { - var newCoords = new L.Point( - this._wrapX ? L.Util.wrapNum(coords.x, this._wrapX) : coords.x, - this._wrapY ? L.Util.wrapNum(coords.y, this._wrapY) : coords.y); - newCoords.z = coords.z; - return newCoords; - }, - - _pxBoundsToTileRange: function (bounds) { - var tileSize = this.getTileSize(); - return new L.Bounds( - bounds.min.unscaleBy(tileSize).floor(), - bounds.max.unscaleBy(tileSize).ceil().subtract([1, 1])); - }, - - _noTilesToLoad: function () { - for (var key in this._tiles) { - if (!this._tiles[key].loaded) { return false; } - } - return true; - } -}); - -// @factory L.gridLayer(options?: GridLayer options) -// Creates a new instance of GridLayer with the supplied options. -L.gridLayer = function (options) { - return new L.GridLayer(options); -}; - - - -/* - * @class TileLayer - * @inherits GridLayer - * @aka L.TileLayer - * Used to load and display tile layers on the map. Extends `GridLayer`. - * - * @example - * - * ```js - * L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png?{foo}', {foo: 'bar'}).addTo(map); - * ``` - * - * @section URL template - * @example - * - * A string of the following form: - * - * ``` - * 'http://{s}.somedomain.com/blabla/{z}/{x}/{y}{r}.png' - * ``` - * - * `{s}` means one of the available subdomains (used sequentially to help with browser parallel requests per domain limitation; subdomain values are specified in options; `a`, `b` or `c` by default, can be omitted), `{z}` — zoom level, `{x}` and `{y}` — tile coordinates. `{r}` can be used to add @2x to the URL to load retina tiles. - * - * You can use custom keys in the template, which will be [evaluated](#util-template) from TileLayer options, like this: - * - * ``` - * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'}); - * ``` - */ - - -L.TileLayer = L.GridLayer.extend({ - - // @section - // @aka TileLayer options - options: { - // @option minZoom: Number = 0 - // Minimum zoom number. - minZoom: 0, - - // @option maxZoom: Number = 18 - // Maximum zoom number. - maxZoom: 18, - - // @option maxNativeZoom: Number = null - // Maximum zoom number the tile source has available. If it is specified, - // the tiles on all zoom levels higher than `maxNativeZoom` will be loaded - // from `maxNativeZoom` level and auto-scaled. - maxNativeZoom: null, - - // @option minNativeZoom: Number = null - // Minimum zoom number the tile source has available. If it is specified, - // the tiles on all zoom levels lower than `minNativeZoom` will be loaded - // from `minNativeZoom` level and auto-scaled. - minNativeZoom: null, - - // @option subdomains: String|String[] = 'abc' - // Subdomains of the tile service. Can be passed in the form of one string (where each letter is a subdomain name) or an array of strings. - subdomains: 'abc', - - // @option errorTileUrl: String = '' - // URL to the tile image to show in place of the tile that failed to load. - errorTileUrl: '', - - // @option zoomOffset: Number = 0 - // The zoom number used in tile URLs will be offset with this value. - zoomOffset: 0, - - // @option tms: Boolean = false - // If `true`, inverses Y axis numbering for tiles (turn this on for [TMS](https://en.wikipedia.org/wiki/Tile_Map_Service) services). - tms: false, - - // @option zoomReverse: Boolean = false - // If set to true, the zoom number used in tile URLs will be reversed (`maxZoom - zoom` instead of `zoom`) - zoomReverse: false, - - // @option detectRetina: Boolean = false - // If `true` and user is on a retina display, it will request four tiles of half the specified size and a bigger zoom level in place of one to utilize the high resolution. - detectRetina: false, - - // @option crossOrigin: Boolean = false - // If true, all tiles will have their crossOrigin attribute set to ''. This is needed if you want to access tile pixel data. - crossOrigin: false - }, - - initialize: function (url, options) { - - this._url = url; - - options = L.setOptions(this, options); - - // detecting retina displays, adjusting tileSize and zoom levels - if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) { - - options.tileSize = Math.floor(options.tileSize / 2); - - if (!options.zoomReverse) { - options.zoomOffset++; - options.maxZoom--; - } else { - options.zoomOffset--; - options.minZoom++; - } - - options.minZoom = Math.max(0, options.minZoom); - } - - if (typeof options.subdomains === 'string') { - options.subdomains = options.subdomains.split(''); - } - - // for https://github.com/Leaflet/Leaflet/issues/137 - if (!L.Browser.android) { - this.on('tileunload', this._onTileRemove); - } - }, - - // @method setUrl(url: String, noRedraw?: Boolean): this - // Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`). - setUrl: function (url, noRedraw) { - this._url = url; - - if (!noRedraw) { - this.redraw(); - } - return this; - }, - - // @method createTile(coords: Object, done?: Function): HTMLElement - // Called only internally, overrides GridLayer's [`createTile()`](#gridlayer-createtile) - // to return an `` HTML element with the appropiate image URL given `coords`. The `done` - // callback is called when the tile has been loaded. - createTile: function (coords, done) { - var tile = document.createElement('img'); - - L.DomEvent.on(tile, 'load', L.bind(this._tileOnLoad, this, done, tile)); - L.DomEvent.on(tile, 'error', L.bind(this._tileOnError, this, done, tile)); - - if (this.options.crossOrigin) { - tile.crossOrigin = ''; - } - - /* - Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons - http://www.w3.org/TR/WCAG20-TECHS/H67 - */ - tile.alt = ''; - - /* - Set role="presentation" to force screen readers to ignore this - https://www.w3.org/TR/wai-aria/roles#textalternativecomputation - */ - tile.setAttribute('role', 'presentation'); - - tile.src = this.getTileUrl(coords); - - return tile; - }, - - // @section Extension methods - // @uninheritable - // Layers extending `TileLayer` might reimplement the following method. - // @method getTileUrl(coords: Object): String - // Called only internally, returns the URL for a tile given its coordinates. - // Classes extending `TileLayer` can override this function to provide custom tile URL naming schemes. - getTileUrl: function (coords) { - var data = { - r: L.Browser.retina ? '@2x' : '', - s: this._getSubdomain(coords), - x: coords.x, - y: coords.y, - z: this._getZoomForUrl() - }; - if (this._map && !this._map.options.crs.infinite) { - var invertedY = this._globalTileRange.max.y - coords.y; - if (this.options.tms) { - data['y'] = invertedY; - } - data['-y'] = invertedY; - } - - return L.Util.template(this._url, L.extend(data, this.options)); - }, - - _tileOnLoad: function (done, tile) { - // For https://github.com/Leaflet/Leaflet/issues/3332 - if (L.Browser.ielt9) { - setTimeout(L.bind(done, this, null, tile), 0); - } else { - done(null, tile); - } - }, - - _tileOnError: function (done, tile, e) { - var errorUrl = this.options.errorTileUrl; - if (errorUrl && tile.src !== errorUrl) { - tile.src = errorUrl; - } - done(e, tile); - }, - - getTileSize: function () { - var map = this._map, - tileSize = L.GridLayer.prototype.getTileSize.call(this), - zoom = this._tileZoom + this.options.zoomOffset, - minNativeZoom = this.options.minNativeZoom, - maxNativeZoom = this.options.maxNativeZoom; - - // decrease tile size when scaling below minNativeZoom - if (minNativeZoom !== null && zoom < minNativeZoom) { - return tileSize.divideBy(map.getZoomScale(minNativeZoom, zoom)).round(); - } - - // increase tile size when scaling above maxNativeZoom - if (maxNativeZoom !== null && zoom > maxNativeZoom) { - return tileSize.divideBy(map.getZoomScale(maxNativeZoom, zoom)).round(); - } - - return tileSize; - }, - - _onTileRemove: function (e) { - e.tile.onload = null; - }, - - _getZoomForUrl: function () { - var zoom = this._tileZoom, - maxZoom = this.options.maxZoom, - zoomReverse = this.options.zoomReverse, - zoomOffset = this.options.zoomOffset, - minNativeZoom = this.options.minNativeZoom, - maxNativeZoom = this.options.maxNativeZoom; - - if (zoomReverse) { - zoom = maxZoom - zoom; - } - - zoom += zoomOffset; - - if (minNativeZoom !== null && zoom < minNativeZoom) { - return minNativeZoom; - } - - if (maxNativeZoom !== null && zoom > maxNativeZoom) { - return maxNativeZoom; - } - - return zoom; - }, - - _getSubdomain: function (tilePoint) { - var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length; - return this.options.subdomains[index]; - }, - - // stops loading all tiles in the background layer - _abortLoading: function () { - var i, tile; - for (i in this._tiles) { - if (this._tiles[i].coords.z !== this._tileZoom) { - tile = this._tiles[i].el; - - tile.onload = L.Util.falseFn; - tile.onerror = L.Util.falseFn; - - if (!tile.complete) { - tile.src = L.Util.emptyImageUrl; - L.DomUtil.remove(tile); - } - } - } - } -}); - - -// @factory L.tilelayer(urlTemplate: String, options?: TileLayer options) -// Instantiates a tile layer object given a `URL template` and optionally an options object. - -L.tileLayer = function (url, options) { - return new L.TileLayer(url, options); -}; - - - -/* - * @class TileLayer.WMS - * @inherits TileLayer - * @aka L.TileLayer.WMS - * Used to display [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services as tile layers on the map. Extends `TileLayer`. - * - * @example - * - * ```js - * var nexrad = L.tileLayer.wms("http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi", { - * layers: 'nexrad-n0r-900913', - * format: 'image/png', - * transparent: true, - * attribution: "Weather data © 2012 IEM Nexrad" - * }); - * ``` - */ - -L.TileLayer.WMS = L.TileLayer.extend({ - - // @section - // @aka TileLayer.WMS options - // If any custom options not documented here are used, they will be sent to the - // WMS server as extra parameters in each request URL. This can be useful for - // [non-standard vendor WMS parameters](http://docs.geoserver.org/stable/en/user/services/wms/vendor.html). - defaultWmsParams: { - service: 'WMS', - request: 'GetMap', - - // @option layers: String = '' - // **(required)** Comma-separated list of WMS layers to show. - layers: '', - - // @option styles: String = '' - // Comma-separated list of WMS styles. - styles: '', - - // @option format: String = 'image/jpeg' - // WMS image format (use `'image/png'` for layers with transparency). - format: 'image/jpeg', - - // @option transparent: Boolean = false - // If `true`, the WMS service will return images with transparency. - transparent: false, - - // @option version: String = '1.1.1' - // Version of the WMS service to use - version: '1.1.1' - }, - - options: { - // @option crs: CRS = null - // Coordinate Reference System to use for the WMS requests, defaults to - // map CRS. Don't change this if you're not sure what it means. - crs: null, - - // @option uppercase: Boolean = false - // If `true`, WMS request parameter keys will be uppercase. - uppercase: false - }, - - initialize: function (url, options) { - - this._url = url; - - var wmsParams = L.extend({}, this.defaultWmsParams); - - // all keys that are not TileLayer options go to WMS params - for (var i in options) { - if (!(i in this.options)) { - wmsParams[i] = options[i]; - } - } - - options = L.setOptions(this, options); - - wmsParams.width = wmsParams.height = options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1); - - this.wmsParams = wmsParams; - }, - - onAdd: function (map) { - - this._crs = this.options.crs || map.options.crs; - this._wmsVersion = parseFloat(this.wmsParams.version); - - var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs'; - this.wmsParams[projectionKey] = this._crs.code; - - L.TileLayer.prototype.onAdd.call(this, map); - }, - - getTileUrl: function (coords) { - - var tileBounds = this._tileCoordsToBounds(coords), - nw = this._crs.project(tileBounds.getNorthWest()), - se = this._crs.project(tileBounds.getSouthEast()), - - bbox = (this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ? - [se.y, nw.x, nw.y, se.x] : - [nw.x, se.y, se.x, nw.y]).join(','), - - url = L.TileLayer.prototype.getTileUrl.call(this, coords); - - return url + - L.Util.getParamString(this.wmsParams, url, this.options.uppercase) + - (this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox; - }, - - // @method setParams(params: Object, noRedraw?: Boolean): this - // Merges an object with the new parameters and re-requests tiles on the current screen (unless `noRedraw` was set to true). - setParams: function (params, noRedraw) { - - L.extend(this.wmsParams, params); - - if (!noRedraw) { - this.redraw(); - } - - return this; - } -}); - - -// @factory L.tileLayer.wms(baseUrl: String, options: TileLayer.WMS options) -// Instantiates a WMS tile layer object given a base URL of the WMS service and a WMS parameters/options object. -L.tileLayer.wms = function (url, options) { - return new L.TileLayer.WMS(url, options); -}; - - - -/* - * @class ImageOverlay - * @aka L.ImageOverlay - * @inherits Interactive layer - * - * Used to load and display a single image over specific bounds of the map. Extends `Layer`. - * - * @example - * - * ```js - * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg', - * imageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]]; - * L.imageOverlay(imageUrl, imageBounds).addTo(map); - * ``` - */ - -L.ImageOverlay = L.Layer.extend({ - - // @section - // @aka ImageOverlay options - options: { - // @option opacity: Number = 1.0 - // The opacity of the image overlay. - opacity: 1, - - // @option alt: String = '' - // Text for the `alt` attribute of the image (useful for accessibility). - alt: '', - - // @option interactive: Boolean = false - // If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered. - interactive: false, - - // @option crossOrigin: Boolean = false - // If true, the image will have its crossOrigin attribute set to ''. This is needed if you want to access image pixel data. - crossOrigin: false - }, - - initialize: function (url, bounds, options) { // (String, LatLngBounds, Object) - this._url = url; - this._bounds = L.latLngBounds(bounds); - - L.setOptions(this, options); - }, - - onAdd: function () { - if (!this._image) { - this._initImage(); - - if (this.options.opacity < 1) { - this._updateOpacity(); - } - } - - if (this.options.interactive) { - L.DomUtil.addClass(this._image, 'leaflet-interactive'); - this.addInteractiveTarget(this._image); - } - - this.getPane().appendChild(this._image); - this._reset(); - }, - - onRemove: function () { - L.DomUtil.remove(this._image); - if (this.options.interactive) { - this.removeInteractiveTarget(this._image); - } - }, - - // @method setOpacity(opacity: Number): this - // Sets the opacity of the overlay. - setOpacity: function (opacity) { - this.options.opacity = opacity; - - if (this._image) { - this._updateOpacity(); - } - return this; - }, - - setStyle: function (styleOpts) { - if (styleOpts.opacity) { - this.setOpacity(styleOpts.opacity); - } - return this; - }, - - // @method bringToFront(): this - // Brings the layer to the top of all overlays. - bringToFront: function () { - if (this._map) { - L.DomUtil.toFront(this._image); - } - return this; - }, - - // @method bringToBack(): this - // Brings the layer to the bottom of all overlays. - bringToBack: function () { - if (this._map) { - L.DomUtil.toBack(this._image); - } - return this; - }, - - // @method setUrl(url: String): this - // Changes the URL of the image. - setUrl: function (url) { - this._url = url; - - if (this._image) { - this._image.src = url; - } - return this; - }, - - // @method setBounds(bounds: LatLngBounds): this - // Update the bounds that this ImageOverlay covers - setBounds: function (bounds) { - this._bounds = bounds; - - if (this._map) { - this._reset(); - } - return this; - }, - - getEvents: function () { - var events = { - zoom: this._reset, - viewreset: this._reset - }; - - if (this._zoomAnimated) { - events.zoomanim = this._animateZoom; - } - - return events; - }, - - // @method getBounds(): LatLngBounds - // Get the bounds that this ImageOverlay covers - getBounds: function () { - return this._bounds; - }, - - // @method getElement(): HTMLElement - // Get the img element that represents the ImageOverlay on the map - getElement: function () { - return this._image; - }, - - _initImage: function () { - var img = this._image = L.DomUtil.create('img', - 'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : '')); - - img.onselectstart = L.Util.falseFn; - img.onmousemove = L.Util.falseFn; - - img.onload = L.bind(this.fire, this, 'load'); - - if (this.options.crossOrigin) { - img.crossOrigin = ''; - } - - img.src = this._url; - img.alt = this.options.alt; - }, - - _animateZoom: function (e) { - var scale = this._map.getZoomScale(e.zoom), - offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min; - - L.DomUtil.setTransform(this._image, offset, scale); - }, - - _reset: function () { - var image = this._image, - bounds = new L.Bounds( - this._map.latLngToLayerPoint(this._bounds.getNorthWest()), - this._map.latLngToLayerPoint(this._bounds.getSouthEast())), - size = bounds.getSize(); - - L.DomUtil.setPosition(image, bounds.min); - - image.style.width = size.x + 'px'; - image.style.height = size.y + 'px'; - }, - - _updateOpacity: function () { - L.DomUtil.setOpacity(this._image, this.options.opacity); - } -}); - -// @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options) -// Instantiates an image overlay object given the URL of the image and the -// geographical bounds it is tied to. -L.imageOverlay = function (url, bounds, options) { - return new L.ImageOverlay(url, bounds, options); -}; - - - -/* - * @class Icon - * @aka L.Icon - * @inherits Layer - * - * Represents an icon to provide when creating a marker. - * - * @example - * - * ```js - * var myIcon = L.icon({ - * iconUrl: 'my-icon.png', - * iconRetinaUrl: 'my-icon@2x.png', - * iconSize: [38, 95], - * iconAnchor: [22, 94], - * popupAnchor: [-3, -76], - * shadowUrl: 'my-icon-shadow.png', - * shadowRetinaUrl: 'my-icon-shadow@2x.png', - * shadowSize: [68, 95], - * shadowAnchor: [22, 94] - * }); - * - * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map); - * ``` - * - * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default. - * - */ - -L.Icon = L.Class.extend({ - - /* @section - * @aka Icon options - * - * @option iconUrl: String = null - * **(required)** The URL to the icon image (absolute or relative to your script path). - * - * @option iconRetinaUrl: String = null - * The URL to a retina sized version of the icon image (absolute or relative to your - * script path). Used for Retina screen devices. - * - * @option iconSize: Point = null - * Size of the icon image in pixels. - * - * @option iconAnchor: Point = null - * The coordinates of the "tip" of the icon (relative to its top left corner). The icon - * will be aligned so that this point is at the marker's geographical location. Centered - * by default if size is specified, also can be set in CSS with negative margins. - * - * @option popupAnchor: Point = null - * The coordinates of the point from which popups will "open", relative to the icon anchor. - * - * @option shadowUrl: String = null - * The URL to the icon shadow image. If not specified, no shadow image will be created. - * - * @option shadowRetinaUrl: String = null - * - * @option shadowSize: Point = null - * Size of the shadow image in pixels. - * - * @option shadowAnchor: Point = null - * The coordinates of the "tip" of the shadow (relative to its top left corner) (the same - * as iconAnchor if not specified). - * - * @option className: String = '' - * A custom class name to assign to both icon and shadow images. Empty by default. - */ - - initialize: function (options) { - L.setOptions(this, options); - }, - - // @method createIcon(oldIcon?: HTMLElement): HTMLElement - // Called internally when the icon has to be shown, returns a `` HTML element - // styled according to the options. - createIcon: function (oldIcon) { - return this._createIcon('icon', oldIcon); - }, - - // @method createShadow(oldIcon?: HTMLElement): HTMLElement - // As `createIcon`, but for the shadow beneath it. - createShadow: function (oldIcon) { - return this._createIcon('shadow', oldIcon); - }, - - _createIcon: function (name, oldIcon) { - var src = this._getIconUrl(name); - - if (!src) { - if (name === 'icon') { - throw new Error('iconUrl not set in Icon options (see the docs).'); - } - return null; - } - - var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null); - this._setIconStyles(img, name); - - return img; - }, - - _setIconStyles: function (img, name) { - var options = this.options; - var sizeOption = options[name + 'Size']; - - if (typeof sizeOption === 'number') { - sizeOption = [sizeOption, sizeOption]; - } - - var size = L.point(sizeOption), - anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor || - size && size.divideBy(2, true)); - - img.className = 'leaflet-marker-' + name + ' ' + (options.className || ''); - - if (anchor) { - img.style.marginLeft = (-anchor.x) + 'px'; - img.style.marginTop = (-anchor.y) + 'px'; - } - - if (size) { - img.style.width = size.x + 'px'; - img.style.height = size.y + 'px'; - } - }, - - _createImg: function (src, el) { - el = el || document.createElement('img'); - el.src = src; - return el; - }, - - _getIconUrl: function (name) { - return L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url']; - } -}); - - -// @factory L.icon(options: Icon options) -// Creates an icon instance with the given options. -L.icon = function (options) { - return new L.Icon(options); -}; - - - -/* - * @miniclass Icon.Default (Icon) - * @aka L.Icon.Default - * @section - * - * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when - * no icon is specified. Points to the blue marker image distributed with Leaflet - * releases. - * - * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options` - * (which is a set of `Icon options`). - * - * If you want to _completely_ replace the default icon, override the - * `L.Marker.prototype.options.icon` with your own icon instead. - */ - -L.Icon.Default = L.Icon.extend({ - - options: { - iconUrl: 'marker-icon.png', - iconRetinaUrl: 'marker-icon-2x.png', - shadowUrl: 'marker-shadow.png', - iconSize: [25, 41], - iconAnchor: [12, 41], - popupAnchor: [1, -34], - tooltipAnchor: [16, -28], - shadowSize: [41, 41] - }, - - _getIconUrl: function (name) { - if (!L.Icon.Default.imagePath) { // Deprecated, backwards-compatibility only - L.Icon.Default.imagePath = this._detectIconPath(); - } - - // @option imagePath: String - // `L.Icon.Default` will try to auto-detect the absolute location of the - // blue icon images. If you are placing these images in a non-standard - // way, set this option to point to the right absolute path. - return (this.options.imagePath || L.Icon.Default.imagePath) + L.Icon.prototype._getIconUrl.call(this, name); - }, - - _detectIconPath: function () { - var el = L.DomUtil.create('div', 'leaflet-default-icon-path', document.body); - var path = L.DomUtil.getStyle(el, 'background-image') || - L.DomUtil.getStyle(el, 'backgroundImage'); // IE8 - - document.body.removeChild(el); - - return path.indexOf('url') === 0 ? - path.replace(/^url\([\"\']?/, '').replace(/marker-icon\.png[\"\']?\)$/, '') : ''; - } -}); - - - -/* - * @class Marker - * @inherits Interactive layer - * @aka L.Marker - * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`. - * - * @example - * - * ```js - * L.marker([50.5, 30.5]).addTo(map); - * ``` - */ - -L.Marker = L.Layer.extend({ - - // @section - // @aka Marker options - options: { - // @option icon: Icon = * - // Icon class to use for rendering the marker. See [Icon documentation](#L.Icon) for details on how to customize the marker icon. If not specified, a new `L.Icon.Default` is used. - icon: new L.Icon.Default(), - - // Option inherited from "Interactive layer" abstract class - interactive: true, - - // @option draggable: Boolean = false - // Whether the marker is draggable with mouse/touch or not. - draggable: false, - - // @option keyboard: Boolean = true - // Whether the marker can be tabbed to with a keyboard and clicked by pressing enter. - keyboard: true, - - // @option title: String = '' - // Text for the browser tooltip that appear on marker hover (no tooltip by default). - title: '', - - // @option alt: String = '' - // Text for the `alt` attribute of the icon image (useful for accessibility). - alt: '', - - // @option zIndexOffset: Number = 0 - // By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively). - zIndexOffset: 0, - - // @option opacity: Number = 1.0 - // The opacity of the marker. - opacity: 1, - - // @option riseOnHover: Boolean = false - // If `true`, the marker will get on top of others when you hover the mouse over it. - riseOnHover: false, - - // @option riseOffset: Number = 250 - // The z-index offset used for the `riseOnHover` feature. - riseOffset: 250, - - // @option pane: String = 'markerPane' - // `Map pane` where the markers icon will be added. - pane: 'markerPane', - - // FIXME: shadowPane is no longer a valid option - nonBubblingEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu'] - }, - - /* @section - * - * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods: - */ - - initialize: function (latlng, options) { - L.setOptions(this, options); - this._latlng = L.latLng(latlng); - }, - - onAdd: function (map) { - this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation; - - if (this._zoomAnimated) { - map.on('zoomanim', this._animateZoom, this); - } - - this._initIcon(); - this.update(); - }, - - onRemove: function (map) { - if (this.dragging && this.dragging.enabled()) { - this.options.draggable = true; - this.dragging.removeHooks(); - } - - if (this._zoomAnimated) { - map.off('zoomanim', this._animateZoom, this); - } - - this._removeIcon(); - this._removeShadow(); - }, - - getEvents: function () { - return { - zoom: this.update, - viewreset: this.update - }; - }, - - // @method getLatLng: LatLng - // Returns the current geographical position of the marker. - getLatLng: function () { - return this._latlng; - }, - - // @method setLatLng(latlng: LatLng): this - // Changes the marker position to the given point. - setLatLng: function (latlng) { - var oldLatLng = this._latlng; - this._latlng = L.latLng(latlng); - this.update(); - - // @event move: Event - // Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`. - return this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng}); - }, - - // @method setZIndexOffset(offset: Number): this - // Changes the [zIndex offset](#marker-zindexoffset) of the marker. - setZIndexOffset: function (offset) { - this.options.zIndexOffset = offset; - return this.update(); - }, - - // @method setIcon(icon: Icon): this - // Changes the marker icon. - setIcon: function (icon) { - - this.options.icon = icon; - - if (this._map) { - this._initIcon(); - this.update(); - } - - if (this._popup) { - this.bindPopup(this._popup, this._popup.options); - } - - return this; - }, - - getElement: function () { - return this._icon; - }, - - update: function () { - - if (this._icon) { - var pos = this._map.latLngToLayerPoint(this._latlng).round(); - this._setPos(pos); - } - - return this; - }, - - _initIcon: function () { - var options = this.options, - classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide'); - - var icon = options.icon.createIcon(this._icon), - addIcon = false; - - // if we're not reusing the icon, remove the old one and init new one - if (icon !== this._icon) { - if (this._icon) { - this._removeIcon(); - } - addIcon = true; - - if (options.title) { - icon.title = options.title; - } - if (options.alt) { - icon.alt = options.alt; - } - } - - L.DomUtil.addClass(icon, classToAdd); - - if (options.keyboard) { - icon.tabIndex = '0'; - } - - this._icon = icon; - - if (options.riseOnHover) { - this.on({ - mouseover: this._bringToFront, - mouseout: this._resetZIndex - }); - } - - var newShadow = options.icon.createShadow(this._shadow), - addShadow = false; - - if (newShadow !== this._shadow) { - this._removeShadow(); - addShadow = true; - } - - if (newShadow) { - L.DomUtil.addClass(newShadow, classToAdd); - newShadow.alt = ''; - } - this._shadow = newShadow; - - - if (options.opacity < 1) { - this._updateOpacity(); - } - - - if (addIcon) { - this.getPane().appendChild(this._icon); - } - this._initInteraction(); - if (newShadow && addShadow) { - this.getPane('shadowPane').appendChild(this._shadow); - } - }, - - _removeIcon: function () { - if (this.options.riseOnHover) { - this.off({ - mouseover: this._bringToFront, - mouseout: this._resetZIndex - }); - } - - L.DomUtil.remove(this._icon); - this.removeInteractiveTarget(this._icon); - - this._icon = null; - }, - - _removeShadow: function () { - if (this._shadow) { - L.DomUtil.remove(this._shadow); - } - this._shadow = null; - }, - - _setPos: function (pos) { - L.DomUtil.setPosition(this._icon, pos); - - if (this._shadow) { - L.DomUtil.setPosition(this._shadow, pos); - } - - this._zIndex = pos.y + this.options.zIndexOffset; - - this._resetZIndex(); - }, - - _updateZIndex: function (offset) { - this._icon.style.zIndex = this._zIndex + offset; - }, - - _animateZoom: function (opt) { - var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round(); - - this._setPos(pos); - }, - - _initInteraction: function () { - - if (!this.options.interactive) { return; } - - L.DomUtil.addClass(this._icon, 'leaflet-interactive'); - - this.addInteractiveTarget(this._icon); - - if (L.Handler.MarkerDrag) { - var draggable = this.options.draggable; - if (this.dragging) { - draggable = this.dragging.enabled(); - this.dragging.disable(); - } - - this.dragging = new L.Handler.MarkerDrag(this); - - if (draggable) { - this.dragging.enable(); - } - } - }, - - // @method setOpacity(opacity: Number): this - // Changes the opacity of the marker. - setOpacity: function (opacity) { - this.options.opacity = opacity; - if (this._map) { - this._updateOpacity(); - } - - return this; - }, - - _updateOpacity: function () { - var opacity = this.options.opacity; - - L.DomUtil.setOpacity(this._icon, opacity); - - if (this._shadow) { - L.DomUtil.setOpacity(this._shadow, opacity); - } - }, - - _bringToFront: function () { - this._updateZIndex(this.options.riseOffset); - }, - - _resetZIndex: function () { - this._updateZIndex(0); - }, - - _getPopupAnchor: function () { - return this.options.icon.options.popupAnchor || [0, 0]; - }, - - _getTooltipAnchor: function () { - return this.options.icon.options.tooltipAnchor || [0, 0]; - } -}); - - -// factory L.marker(latlng: LatLng, options? : Marker options) - -// @factory L.marker(latlng: LatLng, options? : Marker options) -// Instantiates a Marker object given a geographical point and optionally an options object. -L.marker = function (latlng, options) { - return new L.Marker(latlng, options); -}; - - - -/* - * @class DivIcon - * @aka L.DivIcon - * @inherits Icon - * - * Represents a lightweight icon for markers that uses a simple `
` - * element instead of an image. Inherits from `Icon` but ignores the `iconUrl` and shadow options. - * - * @example - * ```js - * var myIcon = L.divIcon({className: 'my-div-icon'}); - * // you can set .my-div-icon styles in CSS - * - * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map); - * ``` - * - * By default, it has a 'leaflet-div-icon' CSS class and is styled as a little white square with a shadow. - */ - -L.DivIcon = L.Icon.extend({ - options: { - // @section - // @aka DivIcon options - iconSize: [12, 12], // also can be set through CSS - - // iconAnchor: (Point), - // popupAnchor: (Point), - - // @option html: String = '' - // Custom HTML code to put inside the div element, empty by default. - html: false, - - // @option bgPos: Point = [0, 0] - // Optional relative position of the background, in pixels - bgPos: null, - - className: 'leaflet-div-icon' - }, - - createIcon: function (oldIcon) { - var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'), - options = this.options; - - div.innerHTML = options.html !== false ? options.html : ''; - - if (options.bgPos) { - var bgPos = L.point(options.bgPos); - div.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px'; - } - this._setIconStyles(div, 'icon'); - - return div; - }, - - createShadow: function () { - return null; - } -}); - -// @factory L.divIcon(options: DivIcon options) -// Creates a `DivIcon` instance with the given options. -L.divIcon = function (options) { - return new L.DivIcon(options); -}; - - - -/* - * @class DivOverlay - * @inherits Layer - * @aka L.DivOverlay - * Base model for L.Popup and L.Tooltip. Inherit from it for custom popup like plugins. - */ - -// @namespace DivOverlay -L.DivOverlay = L.Layer.extend({ - - // @section - // @aka DivOverlay options - options: { - // @option offset: Point = Point(0, 7) - // The offset of the popup position. Useful to control the anchor - // of the popup when opening it on some overlays. - offset: [0, 7], - - // @option className: String = '' - // A custom CSS class name to assign to the popup. - className: '', - - // @option pane: String = 'popupPane' - // `Map pane` where the popup will be added. - pane: 'popupPane' - }, - - initialize: function (options, source) { - L.setOptions(this, options); - - this._source = source; - }, - - onAdd: function (map) { - this._zoomAnimated = map._zoomAnimated; - - if (!this._container) { - this._initLayout(); - } - - if (map._fadeAnimated) { - L.DomUtil.setOpacity(this._container, 0); - } - - clearTimeout(this._removeTimeout); - this.getPane().appendChild(this._container); - this.update(); - - if (map._fadeAnimated) { - L.DomUtil.setOpacity(this._container, 1); - } - - this.bringToFront(); - }, - - onRemove: function (map) { - if (map._fadeAnimated) { - L.DomUtil.setOpacity(this._container, 0); - this._removeTimeout = setTimeout(L.bind(L.DomUtil.remove, L.DomUtil, this._container), 200); - } else { - L.DomUtil.remove(this._container); - } - }, - - // @namespace Popup - // @method getLatLng: LatLng - // Returns the geographical point of popup. - getLatLng: function () { - return this._latlng; - }, - - // @method setLatLng(latlng: LatLng): this - // Sets the geographical point where the popup will open. - setLatLng: function (latlng) { - this._latlng = L.latLng(latlng); - if (this._map) { - this._updatePosition(); - this._adjustPan(); - } - return this; - }, - - // @method getContent: String|HTMLElement - // Returns the content of the popup. - getContent: function () { - return this._content; - }, - - // @method setContent(htmlContent: String|HTMLElement|Function): this - // Sets the HTML content of the popup. If a function is passed the source layer will be passed to the function. The function should return a `String` or `HTMLElement` to be used in the popup. - setContent: function (content) { - this._content = content; - this.update(); - return this; - }, - - // @method getElement: String|HTMLElement - // Alias for [getContent()](#popup-getcontent) - getElement: function () { - return this._container; - }, - - // @method update: null - // Updates the popup content, layout and position. Useful for updating the popup after something inside changed, e.g. image loaded. - update: function () { - if (!this._map) { return; } - - this._container.style.visibility = 'hidden'; - - this._updateContent(); - this._updateLayout(); - this._updatePosition(); - - this._container.style.visibility = ''; - - this._adjustPan(); - }, - - getEvents: function () { - var events = { - zoom: this._updatePosition, - viewreset: this._updatePosition - }; - - if (this._zoomAnimated) { - events.zoomanim = this._animateZoom; - } - return events; - }, - - // @method isOpen: Boolean - // Returns `true` when the popup is visible on the map. - isOpen: function () { - return !!this._map && this._map.hasLayer(this); - }, - - // @method bringToFront: this - // Brings this popup in front of other popups (in the same map pane). - bringToFront: function () { - if (this._map) { - L.DomUtil.toFront(this._container); - } - return this; - }, - - // @method bringToBack: this - // Brings this popup to the back of other popups (in the same map pane). - bringToBack: function () { - if (this._map) { - L.DomUtil.toBack(this._container); - } - return this; - }, - - _updateContent: function () { - if (!this._content) { return; } - - var node = this._contentNode; - var content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content; - - if (typeof content === 'string') { - node.innerHTML = content; - } else { - while (node.hasChildNodes()) { - node.removeChild(node.firstChild); - } - node.appendChild(content); - } - this.fire('contentupdate'); - }, - - _updatePosition: function () { - if (!this._map) { return; } - - var pos = this._map.latLngToLayerPoint(this._latlng), - offset = L.point(this.options.offset), - anchor = this._getAnchor(); - - if (this._zoomAnimated) { - L.DomUtil.setPosition(this._container, pos.add(anchor)); - } else { - offset = offset.add(pos).add(anchor); - } - - var bottom = this._containerBottom = -offset.y, - left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x; - - // bottom position the popup in case the height of the popup changes (images loading etc) - this._container.style.bottom = bottom + 'px'; - this._container.style.left = left + 'px'; - }, - - _getAnchor: function () { - return [0, 0]; - } - -}); - - - -/* - * @class Popup - * @inherits DivOverlay - * @aka L.Popup - * Used to open popups in certain places of the map. Use [Map.openPopup](#map-openpopup) to - * open popups while making sure that only one popup is open at one time - * (recommended for usability), or use [Map.addLayer](#map-addlayer) to open as many as you want. - * - * @example - * - * If you want to just bind a popup to marker click and then open it, it's really easy: - * - * ```js - * marker.bindPopup(popupContent).openPopup(); - * ``` - * Path overlays like polylines also have a `bindPopup` method. - * Here's a more complicated way to open a popup on a map: - * - * ```js - * var popup = L.popup() - * .setLatLng(latlng) - * .setContent('

Hello world!
This is a nice popup.

') - * .openOn(map); - * ``` - */ - - -// @namespace Popup -L.Popup = L.DivOverlay.extend({ - - // @section - // @aka Popup options - options: { - // @option maxWidth: Number = 300 - // Max width of the popup, in pixels. - maxWidth: 300, - - // @option minWidth: Number = 50 - // Min width of the popup, in pixels. - minWidth: 50, - - // @option maxHeight: Number = null - // If set, creates a scrollable container of the given height - // inside a popup if its content exceeds it. - maxHeight: null, - - // @option autoPan: Boolean = true - // Set it to `false` if you don't want the map to do panning animation - // to fit the opened popup. - autoPan: true, - - // @option autoPanPaddingTopLeft: Point = null - // The margin between the popup and the top left corner of the map - // view after autopanning was performed. - autoPanPaddingTopLeft: null, - - // @option autoPanPaddingBottomRight: Point = null - // The margin between the popup and the bottom right corner of the map - // view after autopanning was performed. - autoPanPaddingBottomRight: null, - - // @option autoPanPadding: Point = Point(5, 5) - // Equivalent of setting both top left and bottom right autopan padding to the same value. - autoPanPadding: [5, 5], - - // @option keepInView: Boolean = false - // Set it to `true` if you want to prevent users from panning the popup - // off of the screen while it is open. - keepInView: false, - - // @option closeButton: Boolean = true - // Controls the presence of a close button in the popup. - closeButton: true, - - // @option autoClose: Boolean = true - // Set it to `false` if you want to override the default behavior of - // the popup closing when user clicks the map (set globally by - // the Map's [closePopupOnClick](#map-closepopuponclick) option). - autoClose: true, - - // @option className: String = '' - // A custom CSS class name to assign to the popup. - className: '' - }, - - // @namespace Popup - // @method openOn(map: Map): this - // Adds the popup to the map and closes the previous one. The same as `map.openPopup(popup)`. - openOn: function (map) { - map.openPopup(this); - return this; - }, - - onAdd: function (map) { - L.DivOverlay.prototype.onAdd.call(this, map); - - // @namespace Map - // @section Popup events - // @event popupopen: PopupEvent - // Fired when a popup is opened in the map - map.fire('popupopen', {popup: this}); - - if (this._source) { - // @namespace Layer - // @section Popup events - // @event popupopen: PopupEvent - // Fired when a popup bound to this layer is opened - this._source.fire('popupopen', {popup: this}, true); - // For non-path layers, we toggle the popup when clicking - // again the layer, so prevent the map to reopen it. - if (!(this._source instanceof L.Path)) { - this._source.on('preclick', L.DomEvent.stopPropagation); - } - } - }, - - onRemove: function (map) { - L.DivOverlay.prototype.onRemove.call(this, map); - - // @namespace Map - // @section Popup events - // @event popupclose: PopupEvent - // Fired when a popup in the map is closed - map.fire('popupclose', {popup: this}); - - if (this._source) { - // @namespace Layer - // @section Popup events - // @event popupclose: PopupEvent - // Fired when a popup bound to this layer is closed - this._source.fire('popupclose', {popup: this}, true); - if (!(this._source instanceof L.Path)) { - this._source.off('preclick', L.DomEvent.stopPropagation); - } - } - }, - - getEvents: function () { - var events = L.DivOverlay.prototype.getEvents.call(this); - - if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) { - events.preclick = this._close; - } - - if (this.options.keepInView) { - events.moveend = this._adjustPan; - } - - return events; - }, - - _close: function () { - if (this._map) { - this._map.closePopup(this); - } - }, - - _initLayout: function () { - var prefix = 'leaflet-popup', - container = this._container = L.DomUtil.create('div', - prefix + ' ' + (this.options.className || '') + - ' leaflet-zoom-animated'); - - if (this.options.closeButton) { - var closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container); - closeButton.href = '#close'; - closeButton.innerHTML = '×'; - - L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this); - } - - var wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container); - this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper); - - L.DomEvent - .disableClickPropagation(wrapper) - .disableScrollPropagation(this._contentNode) - .on(wrapper, 'contextmenu', L.DomEvent.stopPropagation); - - this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container); - this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer); - }, - - _updateLayout: function () { - var container = this._contentNode, - style = container.style; - - style.width = ''; - style.whiteSpace = 'nowrap'; - - var width = container.offsetWidth; - width = Math.min(width, this.options.maxWidth); - width = Math.max(width, this.options.minWidth); - - style.width = (width + 1) + 'px'; - style.whiteSpace = ''; - - style.height = ''; - - var height = container.offsetHeight, - maxHeight = this.options.maxHeight, - scrolledClass = 'leaflet-popup-scrolled'; - - if (maxHeight && height > maxHeight) { - style.height = maxHeight + 'px'; - L.DomUtil.addClass(container, scrolledClass); - } else { - L.DomUtil.removeClass(container, scrolledClass); - } - - this._containerWidth = this._container.offsetWidth; - }, - - _animateZoom: function (e) { - var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center), - anchor = this._getAnchor(); - L.DomUtil.setPosition(this._container, pos.add(anchor)); - }, - - _adjustPan: function () { - if (!this.options.autoPan || (this._map._panAnim && this._map._panAnim._inProgress)) { return; } - - var map = this._map, - marginBottom = parseInt(L.DomUtil.getStyle(this._container, 'marginBottom'), 10) || 0, - containerHeight = this._container.offsetHeight + marginBottom, - containerWidth = this._containerWidth, - layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom); - - layerPos._add(L.DomUtil.getPosition(this._container)); - - var containerPos = map.layerPointToContainerPoint(layerPos), - padding = L.point(this.options.autoPanPadding), - paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding), - paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding), - size = map.getSize(), - dx = 0, - dy = 0; - - if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right - dx = containerPos.x + containerWidth - size.x + paddingBR.x; - } - if (containerPos.x - dx - paddingTL.x < 0) { // left - dx = containerPos.x - paddingTL.x; - } - if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom - dy = containerPos.y + containerHeight - size.y + paddingBR.y; - } - if (containerPos.y - dy - paddingTL.y < 0) { // top - dy = containerPos.y - paddingTL.y; - } - - // @namespace Map - // @section Popup events - // @event autopanstart: Event - // Fired when the map starts autopanning when opening a popup. - if (dx || dy) { - map - .fire('autopanstart') - .panBy([dx, dy]); - } - }, - - _onCloseButtonClick: function (e) { - this._close(); - L.DomEvent.stop(e); - }, - - _getAnchor: function () { - // Where should we anchor the popup on the source layer? - return L.point(this._source && this._source._getPopupAnchor ? this._source._getPopupAnchor() : [0, 0]); - } - -}); - -// @namespace Popup -// @factory L.popup(options?: Popup options, source?: Layer) -// Instantiates a `Popup` object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the popup with a reference to the Layer to which it refers. -L.popup = function (options, source) { - return new L.Popup(options, source); -}; - - -/* @namespace Map - * @section Interaction Options - * @option closePopupOnClick: Boolean = true - * Set it to `false` if you don't want popups to close when user clicks the map. - */ -L.Map.mergeOptions({ - closePopupOnClick: true -}); - - -// @namespace Map -// @section Methods for Layers and Controls -L.Map.include({ - // @method openPopup(popup: Popup): this - // Opens the specified popup while closing the previously opened (to make sure only one is opened at one time for usability). - // @alternative - // @method openPopup(content: String|HTMLElement, latlng: LatLng, options?: Popup options): this - // Creates a popup with the specified content and options and opens it in the given point on a map. - openPopup: function (popup, latlng, options) { - if (!(popup instanceof L.Popup)) { - popup = new L.Popup(options).setContent(popup); - } - - if (latlng) { - popup.setLatLng(latlng); - } - - if (this.hasLayer(popup)) { - return this; - } - - if (this._popup && this._popup.options.autoClose) { - this.closePopup(); - } - - this._popup = popup; - return this.addLayer(popup); - }, - - // @method closePopup(popup?: Popup): this - // Closes the popup previously opened with [openPopup](#map-openpopup) (or the given one). - closePopup: function (popup) { - if (!popup || popup === this._popup) { - popup = this._popup; - this._popup = null; - } - if (popup) { - this.removeLayer(popup); - } - return this; - } -}); - -/* - * @namespace Layer - * @section Popup methods example - * - * All layers share a set of methods convenient for binding popups to it. - * - * ```js - * var layer = L.Polygon(latlngs).bindPopup('Hi There!').addTo(map); - * layer.openPopup(); - * layer.closePopup(); - * ``` - * - * Popups will also be automatically opened when the layer is clicked on and closed when the layer is removed from the map or another popup is opened. - */ - -// @section Popup methods -L.Layer.include({ - - // @method bindPopup(content: String|HTMLElement|Function|Popup, options?: Popup options): this - // Binds a popup to the layer with the passed `content` and sets up the - // neccessary event listeners. If a `Function` is passed it will receive - // the layer as the first argument and should return a `String` or `HTMLElement`. - bindPopup: function (content, options) { - - if (content instanceof L.Popup) { - L.setOptions(content, options); - this._popup = content; - content._source = this; - } else { - if (!this._popup || options) { - this._popup = new L.Popup(options, this); - } - this._popup.setContent(content); - } - - if (!this._popupHandlersAdded) { - this.on({ - click: this._openPopup, - remove: this.closePopup, - move: this._movePopup - }); - this._popupHandlersAdded = true; - } - - return this; - }, - - // @method unbindPopup(): this - // Removes the popup previously bound with `bindPopup`. - unbindPopup: function () { - if (this._popup) { - this.off({ - click: this._openPopup, - remove: this.closePopup, - move: this._movePopup - }); - this._popupHandlersAdded = false; - this._popup = null; - } - return this; - }, - - // @method openPopup(latlng?: LatLng): this - // Opens the bound popup at the specificed `latlng` or at the default popup anchor if no `latlng` is passed. - openPopup: function (layer, latlng) { - if (!(layer instanceof L.Layer)) { - latlng = layer; - layer = this; - } - - if (layer instanceof L.FeatureGroup) { - for (var id in this._layers) { - layer = this._layers[id]; - break; - } - } - - if (!latlng) { - latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng(); - } - - if (this._popup && this._map) { - // set popup source to this layer - this._popup._source = layer; - - // update the popup (content, layout, ect...) - this._popup.update(); - - // open the popup on the map - this._map.openPopup(this._popup, latlng); - } - - return this; - }, - - // @method closePopup(): this - // Closes the popup bound to this layer if it is open. - closePopup: function () { - if (this._popup) { - this._popup._close(); - } - return this; - }, - - // @method togglePopup(): this - // Opens or closes the popup bound to this layer depending on its current state. - togglePopup: function (target) { - if (this._popup) { - if (this._popup._map) { - this.closePopup(); - } else { - this.openPopup(target); - } - } - return this; - }, - - // @method isPopupOpen(): boolean - // Returns `true` if the popup bound to this layer is currently open. - isPopupOpen: function () { - return (this._popup ? this._popup.isOpen() : false); - }, - - // @method setPopupContent(content: String|HTMLElement|Popup): this - // Sets the content of the popup bound to this layer. - setPopupContent: function (content) { - if (this._popup) { - this._popup.setContent(content); - } - return this; - }, - - // @method getPopup(): Popup - // Returns the popup bound to this layer. - getPopup: function () { - return this._popup; - }, - - _openPopup: function (e) { - var layer = e.layer || e.target; - - if (!this._popup) { - return; - } - - if (!this._map) { - return; - } - - // prevent map click - L.DomEvent.stop(e); - - // if this inherits from Path its a vector and we can just - // open the popup at the new location - if (layer instanceof L.Path) { - this.openPopup(e.layer || e.target, e.latlng); - return; - } - - // otherwise treat it like a marker and figure out - // if we should toggle it open/closed - if (this._map.hasLayer(this._popup) && this._popup._source === layer) { - this.closePopup(); - } else { - this.openPopup(layer, e.latlng); - } - }, - - _movePopup: function (e) { - this._popup.setLatLng(e.latlng); - } -}); - - - -/* - * @class Tooltip - * @inherits DivOverlay - * @aka L.Tooltip - * Used to display small texts on top of map layers. - * - * @example - * - * ```js - * marker.bindTooltip("my tooltip text").openTooltip(); - * ``` - * Note about tooltip offset. Leaflet takes two options in consideration - * for computing tooltip offseting: - * - the `offset` Tooltip option: it defaults to [0, 0], and it's specific to one tooltip. - * Add a positive x offset to move the tooltip to the right, and a positive y offset to - * move it to the bottom. Negatives will move to the left and top. - * - the `tooltipAnchor` Icon option: this will only be considered for Marker. You - * should adapt this value if you use a custom icon. - */ - - -// @namespace Tooltip -L.Tooltip = L.DivOverlay.extend({ - - // @section - // @aka Tooltip options - options: { - // @option pane: String = 'tooltipPane' - // `Map pane` where the tooltip will be added. - pane: 'tooltipPane', - - // @option offset: Point = Point(0, 0) - // Optional offset of the tooltip position. - offset: [0, 0], - - // @option direction: String = 'auto' - // Direction where to open the tooltip. Possible values are: `right`, `left`, - // `top`, `bottom`, `center`, `auto`. - // `auto` will dynamicaly switch between `right` and `left` according to the tooltip - // position on the map. - direction: 'auto', - - // @option permanent: Boolean = false - // Whether to open the tooltip permanently or only on mouseover. - permanent: false, - - // @option sticky: Boolean = false - // If true, the tooltip will follow the mouse instead of being fixed at the feature center. - sticky: false, - - // @option interactive: Boolean = false - // If true, the tooltip will listen to the feature events. - interactive: false, - - // @option opacity: Number = 0.9 - // Tooltip container opacity. - opacity: 0.9 - }, - - onAdd: function (map) { - L.DivOverlay.prototype.onAdd.call(this, map); - this.setOpacity(this.options.opacity); - - // @namespace Map - // @section Tooltip events - // @event tooltipopen: TooltipEvent - // Fired when a tooltip is opened in the map. - map.fire('tooltipopen', {tooltip: this}); - - if (this._source) { - // @namespace Layer - // @section Tooltip events - // @event tooltipopen: TooltipEvent - // Fired when a tooltip bound to this layer is opened. - this._source.fire('tooltipopen', {tooltip: this}, true); - } - }, - - onRemove: function (map) { - L.DivOverlay.prototype.onRemove.call(this, map); - - // @namespace Map - // @section Tooltip events - // @event tooltipclose: TooltipEvent - // Fired when a tooltip in the map is closed. - map.fire('tooltipclose', {tooltip: this}); - - if (this._source) { - // @namespace Layer - // @section Tooltip events - // @event tooltipclose: TooltipEvent - // Fired when a tooltip bound to this layer is closed. - this._source.fire('tooltipclose', {tooltip: this}, true); - } - }, - - getEvents: function () { - var events = L.DivOverlay.prototype.getEvents.call(this); - - if (L.Browser.touch && !this.options.permanent) { - events.preclick = this._close; - } - - return events; - }, - - _close: function () { - if (this._map) { - this._map.closeTooltip(this); - } - }, - - _initLayout: function () { - var prefix = 'leaflet-tooltip', - className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide'); - - this._contentNode = this._container = L.DomUtil.create('div', className); - }, - - _updateLayout: function () {}, - - _adjustPan: function () {}, - - _setPosition: function (pos) { - var map = this._map, - container = this._container, - centerPoint = map.latLngToContainerPoint(map.getCenter()), - tooltipPoint = map.layerPointToContainerPoint(pos), - direction = this.options.direction, - tooltipWidth = container.offsetWidth, - tooltipHeight = container.offsetHeight, - offset = L.point(this.options.offset), - anchor = this._getAnchor(); - - if (direction === 'top') { - pos = pos.add(L.point(-tooltipWidth / 2 + offset.x, -tooltipHeight + offset.y + anchor.y, true)); - } else if (direction === 'bottom') { - pos = pos.subtract(L.point(tooltipWidth / 2 - offset.x, -offset.y, true)); - } else if (direction === 'center') { - pos = pos.subtract(L.point(tooltipWidth / 2 + offset.x, tooltipHeight / 2 - anchor.y + offset.y, true)); - } else if (direction === 'right' || direction === 'auto' && tooltipPoint.x < centerPoint.x) { - direction = 'right'; - pos = pos.add(L.point(offset.x + anchor.x, anchor.y - tooltipHeight / 2 + offset.y, true)); - } else { - direction = 'left'; - pos = pos.subtract(L.point(tooltipWidth + anchor.x - offset.x, tooltipHeight / 2 - anchor.y - offset.y, true)); - } - - L.DomUtil.removeClass(container, 'leaflet-tooltip-right'); - L.DomUtil.removeClass(container, 'leaflet-tooltip-left'); - L.DomUtil.removeClass(container, 'leaflet-tooltip-top'); - L.DomUtil.removeClass(container, 'leaflet-tooltip-bottom'); - L.DomUtil.addClass(container, 'leaflet-tooltip-' + direction); - L.DomUtil.setPosition(container, pos); - }, - - _updatePosition: function () { - var pos = this._map.latLngToLayerPoint(this._latlng); - this._setPosition(pos); - }, - - setOpacity: function (opacity) { - this.options.opacity = opacity; - - if (this._container) { - L.DomUtil.setOpacity(this._container, opacity); - } - }, - - _animateZoom: function (e) { - var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center); - this._setPosition(pos); - }, - - _getAnchor: function () { - // Where should we anchor the tooltip on the source layer? - return L.point(this._source && this._source._getTooltipAnchor && !this.options.sticky ? this._source._getTooltipAnchor() : [0, 0]); - } - -}); - -// @namespace Tooltip -// @factory L.tooltip(options?: Tooltip options, source?: Layer) -// Instantiates a Tooltip object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the tooltip with a reference to the Layer to which it refers. -L.tooltip = function (options, source) { - return new L.Tooltip(options, source); -}; - -// @namespace Map -// @section Methods for Layers and Controls -L.Map.include({ - - // @method openTooltip(tooltip: Tooltip): this - // Opens the specified tooltip. - // @alternative - // @method openTooltip(content: String|HTMLElement, latlng: LatLng, options?: Tooltip options): this - // Creates a tooltip with the specified content and options and open it. - openTooltip: function (tooltip, latlng, options) { - if (!(tooltip instanceof L.Tooltip)) { - tooltip = new L.Tooltip(options).setContent(tooltip); - } - - if (latlng) { - tooltip.setLatLng(latlng); - } - - if (this.hasLayer(tooltip)) { - return this; - } - - return this.addLayer(tooltip); - }, - - // @method closeTooltip(tooltip?: Tooltip): this - // Closes the tooltip given as parameter. - closeTooltip: function (tooltip) { - if (tooltip) { - this.removeLayer(tooltip); - } - return this; - } - -}); - -/* - * @namespace Layer - * @section Tooltip methods example - * - * All layers share a set of methods convenient for binding tooltips to it. - * - * ```js - * var layer = L.Polygon(latlngs).bindTooltip('Hi There!').addTo(map); - * layer.openTooltip(); - * layer.closeTooltip(); - * ``` - */ - -// @section Tooltip methods -L.Layer.include({ - - // @method bindTooltip(content: String|HTMLElement|Function|Tooltip, options?: Tooltip options): this - // Binds a tooltip to the layer with the passed `content` and sets up the - // neccessary event listeners. If a `Function` is passed it will receive - // the layer as the first argument and should return a `String` or `HTMLElement`. - bindTooltip: function (content, options) { - - if (content instanceof L.Tooltip) { - L.setOptions(content, options); - this._tooltip = content; - content._source = this; - } else { - if (!this._tooltip || options) { - this._tooltip = L.tooltip(options, this); - } - this._tooltip.setContent(content); - - } - - this._initTooltipInteractions(); - - if (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) { - this.openTooltip(); - } - - return this; - }, - - // @method unbindTooltip(): this - // Removes the tooltip previously bound with `bindTooltip`. - unbindTooltip: function () { - if (this._tooltip) { - this._initTooltipInteractions(true); - this.closeTooltip(); - this._tooltip = null; - } - return this; - }, - - _initTooltipInteractions: function (remove) { - if (!remove && this._tooltipHandlersAdded) { return; } - var onOff = remove ? 'off' : 'on', - events = { - remove: this.closeTooltip, - move: this._moveTooltip - }; - if (!this._tooltip.options.permanent) { - events.mouseover = this._openTooltip; - events.mouseout = this.closeTooltip; - if (this._tooltip.options.sticky) { - events.mousemove = this._moveTooltip; - } - if (L.Browser.touch) { - events.click = this._openTooltip; - } - } else { - events.add = this._openTooltip; - } - this[onOff](events); - this._tooltipHandlersAdded = !remove; - }, - - // @method openTooltip(latlng?: LatLng): this - // Opens the bound tooltip at the specificed `latlng` or at the default tooltip anchor if no `latlng` is passed. - openTooltip: function (layer, latlng) { - if (!(layer instanceof L.Layer)) { - latlng = layer; - layer = this; - } - - if (layer instanceof L.FeatureGroup) { - for (var id in this._layers) { - layer = this._layers[id]; - break; - } - } - - if (!latlng) { - latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng(); - } - - if (this._tooltip && this._map) { - - // set tooltip source to this layer - this._tooltip._source = layer; - - // update the tooltip (content, layout, ect...) - this._tooltip.update(); - - // open the tooltip on the map - this._map.openTooltip(this._tooltip, latlng); - - // Tooltip container may not be defined if not permanent and never - // opened. - if (this._tooltip.options.interactive && this._tooltip._container) { - L.DomUtil.addClass(this._tooltip._container, 'leaflet-clickable'); - this.addInteractiveTarget(this._tooltip._container); - } - } - - return this; - }, - - // @method closeTooltip(): this - // Closes the tooltip bound to this layer if it is open. - closeTooltip: function () { - if (this._tooltip) { - this._tooltip._close(); - if (this._tooltip.options.interactive && this._tooltip._container) { - L.DomUtil.removeClass(this._tooltip._container, 'leaflet-clickable'); - this.removeInteractiveTarget(this._tooltip._container); - } - } - return this; - }, - - // @method toggleTooltip(): this - // Opens or closes the tooltip bound to this layer depending on its current state. - toggleTooltip: function (target) { - if (this._tooltip) { - if (this._tooltip._map) { - this.closeTooltip(); - } else { - this.openTooltip(target); - } - } - return this; - }, - - // @method isTooltipOpen(): boolean - // Returns `true` if the tooltip bound to this layer is currently open. - isTooltipOpen: function () { - return this._tooltip.isOpen(); - }, - - // @method setTooltipContent(content: String|HTMLElement|Tooltip): this - // Sets the content of the tooltip bound to this layer. - setTooltipContent: function (content) { - if (this._tooltip) { - this._tooltip.setContent(content); - } - return this; - }, - - // @method getTooltip(): Tooltip - // Returns the tooltip bound to this layer. - getTooltip: function () { - return this._tooltip; - }, - - _openTooltip: function (e) { - var layer = e.layer || e.target; - - if (!this._tooltip || !this._map) { - return; - } - this.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined); - }, - - _moveTooltip: function (e) { - var latlng = e.latlng, containerPoint, layerPoint; - if (this._tooltip.options.sticky && e.originalEvent) { - containerPoint = this._map.mouseEventToContainerPoint(e.originalEvent); - layerPoint = this._map.containerPointToLayerPoint(containerPoint); - latlng = this._map.layerPointToLatLng(layerPoint); - } - this._tooltip.setLatLng(latlng); - } -}); - - + initialize: function (options) { + setOptions(this, options); + }, + + /* @section + * Classes extending L.Control will inherit the following methods: + * + * @method getPosition: string + * Returns the position of the control. + */ + getPosition: function () { + return this.options.position; + }, + + // @method setPosition(position: string): this + // Sets the position of the control. + setPosition: function (position) { + var map = this._map; + + if (map) { + map.removeControl(this); + } + + this.options.position = position; + + if (map) { + map.addControl(this); + } + + return this; + }, + + // @method getContainer: HTMLElement + // Returns the HTMLElement that contains the control. + getContainer: function () { + return this._container; + }, + + // @method addTo(map: Map): this + // Adds the control to the given map. + addTo: function (map) { + this.remove(); + this._map = map; + + var container = this._container = this.onAdd(map), + pos = this.getPosition(), + corner = map._controlCorners[pos]; + + addClass(container, 'leaflet-control'); + + if (pos.indexOf('bottom') !== -1) { + corner.insertBefore(container, corner.firstChild); + } else { + corner.appendChild(container); + } + + return this; + }, + + // @method remove: this + // Removes the control from the map it is currently active on. + remove: function () { + if (!this._map) { + return this; + } + + remove(this._container); + + if (this.onRemove) { + this.onRemove(this._map); + } + + this._map = null; + + return this; + }, + + _refocusOnMap: function (e) { + // if map exists and event is not a keyboard event + if (this._map && e && e.screenX > 0 && e.screenY > 0) { + this._map.getContainer().focus(); + } + } +}); + +var control = function (options) { + return new Control(options); +}; + +/* @section Extension methods + * @uninheritable + * + * Every control should extend from `L.Control` and (re-)implement the following methods. + * + * @method onAdd(map: Map): HTMLElement + * Should return the container DOM element for the control and add listeners on relevant map events. Called on [`control.addTo(map)`](#control-addTo). + * + * @method onRemove(map: Map) + * Optional method. Should contain all clean up code that removes the listeners previously added in [`onAdd`](#control-onadd). Called on [`control.remove()`](#control-remove). + */ + +/* @namespace Map + * @section Methods for Layers and Controls + */ +Map.include({ + // @method addControl(control: Control): this + // Adds the given control to the map + addControl: function (control) { + control.addTo(this); + return this; + }, + + // @method removeControl(control: Control): this + // Removes the given control from the map + removeControl: function (control) { + control.remove(); + return this; + }, + + _initControlPos: function () { + var corners = this._controlCorners = {}, + l = 'leaflet-', + container = this._controlContainer = + create$1('div', l + 'control-container', this._container); + + function createCorner(vSide, hSide) { + var className = l + vSide + ' ' + l + hSide; + + corners[vSide + hSide] = create$1('div', className, container); + } + + createCorner('top', 'left'); + createCorner('top', 'right'); + createCorner('bottom', 'left'); + createCorner('bottom', 'right'); + }, + + _clearControlPos: function () { + for (var i in this._controlCorners) { + remove(this._controlCorners[i]); + } + remove(this._controlContainer); + delete this._controlCorners; + delete this._controlContainer; + } +}); /* - * @class LayerGroup - * @aka L.LayerGroup - * @inherits Layer + * @class Control.Layers + * @aka L.Control.Layers + * @inherits Control * - * Used to group several layers and handle them as one. If you add it to the map, - * any layers added or removed from the group will be added/removed on the map as - * well. Extends `Layer`. + * The layers control gives users the ability to switch between different base layers and switch overlays on/off (check out the [detailed example](http://leafletjs.com/examples/layers-control/)). Extends `Control`. * * @example * * ```js - * L.layerGroup([marker1, marker2]) - * .addLayer(polyline) - * .addTo(map); + * var baseLayers = { + * "Mapbox": mapbox, + * "OpenStreetMap": osm + * }; + * + * var overlays = { + * "Marker": marker, + * "Roads": roadsLayer + * }; + * + * L.control.layers(baseLayers, overlays).addTo(map); + * ``` + * + * The `baseLayers` and `overlays` parameters are object literals with layer names as keys and `Layer` objects as values: + * + * ```js + * { + * "": layer1, + * "": layer2 + * } + * ``` + * + * The layer names can contain HTML, which allows you to add additional styling to the items: + * + * ```js + * {" My Layer": myLayer} * ``` */ -L.LayerGroup = L.Layer.extend({ +var Layers = Control.extend({ + // @section + // @aka Control.Layers options + options: { + // @option collapsed: Boolean = true + // If `true`, the control will be collapsed into an icon and expanded on mouse hover or touch. + collapsed: true, + position: 'topright', + + // @option autoZIndex: Boolean = true + // If `true`, the control will assign zIndexes in increasing order to all of its layers so that the order is preserved when switching them on/off. + autoZIndex: true, + + // @option hideSingleBase: Boolean = false + // If `true`, the base layers in the control will be hidden when there is only one. + hideSingleBase: false, + + // @option sortLayers: Boolean = false + // Whether to sort the layers. When `false`, layers will keep the order + // in which they were added to the control. + sortLayers: false, + + // @option sortFunction: Function = * + // A [compare function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort) + // that will be used for sorting the layers, when `sortLayers` is `true`. + // The function receives both the `L.Layer` instances and their names, as in + // `sortFunction(layerA, layerB, nameA, nameB)`. + // By default, it sorts layers alphabetically by their name. + sortFunction: function (layerA, layerB, nameA, nameB) { + return nameA < nameB ? -1 : (nameB < nameA ? 1 : 0); + } + }, + + initialize: function (baseLayers, overlays, options) { + setOptions(this, options); + + this._layerControlInputs = []; + this._layers = []; + this._lastZIndex = 0; + this._handlingClick = false; + + for (var i in baseLayers) { + this._addLayer(baseLayers[i], i); + } + + for (i in overlays) { + this._addLayer(overlays[i], i, true); + } + }, + + onAdd: function (map) { + this._initLayout(); + this._update(); + + this._map = map; + map.on('zoomend', this._checkDisabledLayers, this); + + for (var i = 0; i < this._layers.length; i++) { + this._layers[i].layer.on('add remove', this._onLayerChange, this); + } + + return this._container; + }, + + addTo: function (map) { + Control.prototype.addTo.call(this, map); + // Trigger expand after Layers Control has been inserted into DOM so that is now has an actual height. + return this._expandIfNotCollapsed(); + }, + + onRemove: function () { + this._map.off('zoomend', this._checkDisabledLayers, this); + + for (var i = 0; i < this._layers.length; i++) { + this._layers[i].layer.off('add remove', this._onLayerChange, this); + } + }, + + // @method addBaseLayer(layer: Layer, name: String): this + // Adds a base layer (radio button entry) with the given name to the control. + addBaseLayer: function (layer, name) { + this._addLayer(layer, name); + return (this._map) ? this._update() : this; + }, + + // @method addOverlay(layer: Layer, name: String): this + // Adds an overlay (checkbox entry) with the given name to the control. + addOverlay: function (layer, name) { + this._addLayer(layer, name, true); + return (this._map) ? this._update() : this; + }, + + // @method removeLayer(layer: Layer): this + // Remove the given layer from the control. + removeLayer: function (layer) { + layer.off('add remove', this._onLayerChange, this); + + var obj = this._getLayer(stamp(layer)); + if (obj) { + this._layers.splice(this._layers.indexOf(obj), 1); + } + return (this._map) ? this._update() : this; + }, + + // @method expand(): this + // Expand the control container if collapsed. + expand: function () { + addClass(this._container, 'leaflet-control-layers-expanded'); + this._form.style.height = null; + var acceptableHeight = this._map.getSize().y - (this._container.offsetTop + 50); + if (acceptableHeight < this._form.clientHeight) { + addClass(this._form, 'leaflet-control-layers-scrollbar'); + this._form.style.height = acceptableHeight + 'px'; + } else { + removeClass(this._form, 'leaflet-control-layers-scrollbar'); + } + this._checkDisabledLayers(); + return this; + }, + + // @method collapse(): this + // Collapse the control container if expanded. + collapse: function () { + removeClass(this._container, 'leaflet-control-layers-expanded'); + return this; + }, + + _initLayout: function () { + var className = 'leaflet-control-layers', + container = this._container = create$1('div', className), + collapsed = this.options.collapsed; + + // makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released + container.setAttribute('aria-haspopup', true); - initialize: function (layers) { - this._layers = {}; + disableClickPropagation(container); + disableScrollPropagation(container); - var i, len; + var form = this._form = create$1('form', className + '-list'); - if (layers) { - for (i = 0, len = layers.length; i < len; i++) { - this.addLayer(layers[i]); + if (collapsed) { + this._map.on('click', this.collapse, this); + + if (!android) { + on(container, { + mouseenter: this.expand, + mouseleave: this.collapse + }, this); } } + + var link = this._layersLink = create$1('a', className + '-toggle', container); + link.href = '#'; + link.title = 'Layers'; + + if (touch) { + on(link, 'click', stop); + on(link, 'click', this.expand, this); + } else { + on(link, 'focus', this.expand, this); + } + + // work around for Firefox Android issue https://github.com/Leaflet/Leaflet/issues/2033 + on(form, 'click', function () { + setTimeout(bind(this._onInputClick, this), 0); + }, this); + + // TODO keyboard accessibility + + if (!collapsed) { + this.expand(); + } + + this._baseLayersList = create$1('div', className + '-base', form); + this._separator = create$1('div', className + '-separator', form); + this._overlaysList = create$1('div', className + '-overlays', form); + + container.appendChild(form); }, - // @method addLayer(layer: Layer): this - // Adds the given layer to the group. - addLayer: function (layer) { - var id = this.getLayerId(layer); + _getLayer: function (id) { + for (var i = 0; i < this._layers.length; i++) { - this._layers[id] = layer; + if (this._layers[i] && stamp(this._layers[i].layer) === id) { + return this._layers[i]; + } + } + }, + _addLayer: function (layer, name, overlay) { if (this._map) { - this._map.addLayer(layer); + layer.on('add remove', this._onLayerChange, this); } - return this; + this._layers.push({ + layer: layer, + name: name, + overlay: overlay + }); + + if (this.options.sortLayers) { + this._layers.sort(L.bind(function (a, b) { + return this.options.sortFunction(a.layer, b.layer, a.name, b.name); + }, this)); + } + + if (this.options.autoZIndex && layer.setZIndex) { + this._lastZIndex++; + layer.setZIndex(this._lastZIndex); + } + + this._expandIfNotCollapsed(); }, - // @method removeLayer(layer: Layer): this - // Removes the given layer from the group. - // @alternative - // @method removeLayer(id: Number): this - // Removes the layer with the given internal ID from the group. - removeLayer: function (layer) { - var id = layer in this._layers ? layer : this.getLayerId(layer); + _update: function () { + if (!this._container) { return this; } - if (this._map && this._layers[id]) { - this._map.removeLayer(this._layers[id]); + empty(this._baseLayersList); + empty(this._overlaysList); + + this._layerControlInputs = []; + var baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0; + + for (i = 0; i < this._layers.length; i++) { + obj = this._layers[i]; + this._addItem(obj); + overlaysPresent = overlaysPresent || obj.overlay; + baseLayersPresent = baseLayersPresent || !obj.overlay; + baseLayersCount += !obj.overlay ? 1 : 0; } - delete this._layers[id]; + // Hide base layers section if there's only one layer. + if (this.options.hideSingleBase) { + baseLayersPresent = baseLayersPresent && baseLayersCount > 1; + this._baseLayersList.style.display = baseLayersPresent ? '' : 'none'; + } + + this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none'; return this; }, - // @method hasLayer(layer: Layer): Boolean - // Returns `true` if the given layer is currently added to the group. - hasLayer: function (layer) { - return !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers); - }, + _onLayerChange: function (e) { + if (!this._handlingClick) { + this._update(); + } - // @method clearLayers(): this - // Removes all the layers from the group. - clearLayers: function () { - for (var i in this._layers) { - this.removeLayer(this._layers[i]); + var obj = this._getLayer(stamp(e.target)); + + // @namespace Map + // @section Layer events + // @event baselayerchange: LayersControlEvent + // Fired when the base layer is changed through the [layer control](#control-layers). + // @event overlayadd: LayersControlEvent + // Fired when an overlay is selected through the [layer control](#control-layers). + // @event overlayremove: LayersControlEvent + // Fired when an overlay is deselected through the [layer control](#control-layers). + // @namespace Control.Layers + var type = obj.overlay ? + (e.type === 'add' ? 'overlayadd' : 'overlayremove') : + (e.type === 'add' ? 'baselayerchange' : null); + + if (type) { + this._map.fire(type, obj); } - return this; }, - // @method invoke(methodName: String, …): this - // Calls `methodName` on every layer contained in this group, passing any - // additional parameters. Has no effect if the layers contained do not - // implement `methodName`. - invoke: function (methodName) { - var args = Array.prototype.slice.call(arguments, 1), - i, layer; + // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe) + _createRadioElement: function (name, checked) { - for (i in this._layers) { - layer = this._layers[i]; + var radioHtml = ''; - if (layer[methodName]) { - layer[methodName].apply(layer, args); - } - } + var radioFragment = document.createElement('div'); + radioFragment.innerHTML = radioHtml; - return this; + return radioFragment.firstChild; }, - onAdd: function (map) { - for (var i in this._layers) { - map.addLayer(this._layers[i]); + _addItem: function (obj) { + var label = document.createElement('label'), + checked = this._map.hasLayer(obj.layer), + input; + + if (obj.overlay) { + input = document.createElement('input'); + input.type = 'checkbox'; + input.className = 'leaflet-control-layers-selector'; + input.defaultChecked = checked; + } else { + input = this._createRadioElement('leaflet-base-layers', checked); } + + this._layerControlInputs.push(input); + input.layerId = stamp(obj.layer); + + on(input, 'click', this._onInputClick, this); + + var name = document.createElement('span'); + name.innerHTML = ' ' + obj.name; + + // Helps from preventing layer control flicker when checkboxes are disabled + // https://github.com/Leaflet/Leaflet/issues/2771 + var holder = document.createElement('div'); + + label.appendChild(holder); + holder.appendChild(input); + holder.appendChild(name); + + var container = obj.overlay ? this._overlaysList : this._baseLayersList; + container.appendChild(label); + + this._checkDisabledLayers(); + return label; }, - onRemove: function (map) { - for (var i in this._layers) { - map.removeLayer(this._layers[i]); + _onInputClick: function () { + var inputs = this._layerControlInputs, + input, layer, hasLayer; + var addedLayers = [], + removedLayers = []; + + this._handlingClick = true; + + for (var i = inputs.length - 1; i >= 0; i--) { + input = inputs[i]; + layer = this._getLayer(input.layerId).layer; + hasLayer = this._map.hasLayer(layer); + + if (input.checked && !hasLayer) { + addedLayers.push(layer); + + } else if (!input.checked && hasLayer) { + removedLayers.push(layer); + } } - }, - // @method eachLayer(fn: Function, context?: Object): this - // Iterates over the layers of the group, optionally specifying context of the iterator function. - // ```js - // group.eachLayer(function (layer) { - // layer.bindPopup('Hello'); - // }); - // ``` - eachLayer: function (method, context) { - for (var i in this._layers) { - method.call(context, this._layers[i]); + // Bugfix issue 2318: Should remove all old layers before readding new ones + for (i = 0; i < removedLayers.length; i++) { + this._map.removeLayer(removedLayers[i]); + } + for (i = 0; i < addedLayers.length; i++) { + this._map.addLayer(addedLayers[i]); } - return this; - }, - // @method getLayer(id: Number): Layer - // Returns the layer with the given internal ID. - getLayer: function (id) { - return this._layers[id]; + this._handlingClick = false; + + this._refocusOnMap(); }, - // @method getLayers(): Layer[] - // Returns an array of all the layers added to the group. - getLayers: function () { - var layers = []; + _checkDisabledLayers: function () { + var inputs = this._layerControlInputs, + input, + layer, + zoom = this._map.getZoom(); + + for (var i = inputs.length - 1; i >= 0; i--) { + input = inputs[i]; + layer = this._getLayer(input.layerId).layer; + input.disabled = (layer.options.minZoom !== undefined && zoom < layer.options.minZoom) || + (layer.options.maxZoom !== undefined && zoom > layer.options.maxZoom); - for (var i in this._layers) { - layers.push(this._layers[i]); } - return layers; }, - // @method setZIndex(zIndex: Number): this - // Calls `setZIndex` on every layer contained in this group, passing the z-index. - setZIndex: function (zIndex) { - return this.invoke('setZIndex', zIndex); + _expandIfNotCollapsed: function () { + if (this._map && !this.options.collapsed) { + this.expand(); + } + return this; }, - // @method getLayerId(layer: Layer): Number - // Returns the internal ID for a layer - getLayerId: function (layer) { - return L.stamp(layer); + _expand: function () { + // Backward compatibility, remove me in 1.1. + return this.expand(); + }, + + _collapse: function () { + // Backward compatibility, remove me in 1.1. + return this.collapse(); } + }); -// @factory L.layerGroup(layers: Layer[]) -// Create a layer group, optionally given an initial set of layers. -L.layerGroup = function (layers) { - return new L.LayerGroup(layers); -}; - - +// @factory L.control.layers(baselayers?: Object, overlays?: Object, options?: Control.Layers options) +// Creates an attribution control with the given layers. Base layers will be switched with radio buttons, while overlays will be switched with checkboxes. Note that all base layers should be passed in the base layers object, but only one should be added to the map during map instantiation. +var layers = function (baseLayers, overlays, options) { + return new Layers(baseLayers, overlays, options); +}; /* - * @class FeatureGroup - * @aka L.FeatureGroup - * @inherits LayerGroup - * - * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers: - * * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip)) - * * Events are propagated to the `FeatureGroup`, so if the group has an event - * handler, it will handle events from any of the layers. This includes mouse events - * and custom events. - * * Has `layeradd` and `layerremove` events - * - * @example + * @class Control.Zoom + * @aka L.Control.Zoom + * @inherits Control * - * ```js - * L.featureGroup([marker1, marker2, polyline]) - * .bindPopup('Hello world!') - * .on('click', function() { alert('Clicked on a member of the group!'); }) - * .addTo(map); - * ``` + * A basic zoom control with two buttons (zoom in and zoom out). It is put on the map by default unless you set its [`zoomControl` option](#map-zoomcontrol) to `false`. Extends `Control`. */ -L.FeatureGroup = L.LayerGroup.extend({ +var Zoom = Control.extend({ + // @section + // @aka Control.Zoom options + options: { + position: 'topleft', - addLayer: function (layer) { - if (this.hasLayer(layer)) { - return this; - } + // @option zoomInText: String = '+' + // The text set on the 'zoom in' button. + zoomInText: '+', - layer.addEventParent(this); + // @option zoomInTitle: String = 'Zoom in' + // The title set on the 'zoom in' button. + zoomInTitle: 'Zoom in', - L.LayerGroup.prototype.addLayer.call(this, layer); + // @option zoomOutText: String = '−' + // The text set on the 'zoom out' button. + zoomOutText: '−', - // @event layeradd: LayerEvent - // Fired when a layer is added to this `FeatureGroup` - return this.fire('layeradd', {layer: layer}); + // @option zoomOutTitle: String = 'Zoom out' + // The title set on the 'zoom out' button. + zoomOutTitle: 'Zoom out' }, - removeLayer: function (layer) { - if (!this.hasLayer(layer)) { - return this; - } - if (layer in this._layers) { - layer = this._layers[layer]; - } + onAdd: function (map) { + var zoomName = 'leaflet-control-zoom', + container = create$1('div', zoomName + ' leaflet-bar'), + options = this.options; - layer.removeEventParent(this); + this._zoomInButton = this._createButton(options.zoomInText, options.zoomInTitle, + zoomName + '-in', container, this._zoomIn); + this._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle, + zoomName + '-out', container, this._zoomOut); - L.LayerGroup.prototype.removeLayer.call(this, layer); + this._updateDisabled(); + map.on('zoomend zoomlevelschange', this._updateDisabled, this); - // @event layerremove: LayerEvent - // Fired when a layer is removed from this `FeatureGroup` - return this.fire('layerremove', {layer: layer}); + return container; }, - // @method setStyle(style: Path options): this - // Sets the given path options to each layer of the group that has a `setStyle` method. - setStyle: function (style) { - return this.invoke('setStyle', style); + onRemove: function (map) { + map.off('zoomend zoomlevelschange', this._updateDisabled, this); }, - // @method bringToFront(): this - // Brings the layer group to the top of all other layers - bringToFront: function () { - return this.invoke('bringToFront'); + disable: function () { + this._disabled = true; + this._updateDisabled(); + return this; }, - // @method bringToBack(): this - // Brings the layer group to the top of all other layers - bringToBack: function () { - return this.invoke('bringToBack'); + enable: function () { + this._disabled = false; + this._updateDisabled(); + return this; }, - // @method getBounds(): LatLngBounds - // Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children). - getBounds: function () { - var bounds = new L.LatLngBounds(); + _zoomIn: function (e) { + if (!this._disabled && this._map._zoom < this._map.getMaxZoom()) { + this._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1)); + } + }, - for (var id in this._layers) { - var layer = this._layers[id]; - bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng()); + _zoomOut: function (e) { + if (!this._disabled && this._map._zoom > this._map.getMinZoom()) { + this._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1)); + } + }, + + _createButton: function (html, title, className, container, fn) { + var link = create$1('a', className, container); + link.innerHTML = html; + link.href = '#'; + link.title = title; + + /* + * Will force screen readers like VoiceOver to read this as "Zoom in - button" + */ + link.setAttribute('role', 'button'); + link.setAttribute('aria-label', title); + + disableClickPropagation(link); + on(link, 'click', stop); + on(link, 'click', fn, this); + on(link, 'click', this._refocusOnMap, this); + + return link; + }, + + _updateDisabled: function () { + var map = this._map, + className = 'leaflet-disabled'; + + removeClass(this._zoomInButton, className); + removeClass(this._zoomOutButton, className); + + if (this._disabled || map._zoom === map.getMinZoom()) { + addClass(this._zoomOutButton, className); + } + if (this._disabled || map._zoom === map.getMaxZoom()) { + addClass(this._zoomInButton, className); } - return bounds; } }); -// @factory L.featureGroup(layers: Layer[]) -// Create a feature group, optionally given an initial set of layers. -L.featureGroup = function (layers) { - return new L.FeatureGroup(layers); -}; - - +// @namespace Map +// @section Control options +// @option zoomControl: Boolean = true +// Whether a [zoom control](#control-zoom) is added to the map by default. +Map.mergeOptions({ + zoomControl: true +}); + +Map.addInitHook(function () { + if (this.options.zoomControl) { + this.zoomControl = new Zoom(); + this.addControl(this.zoomControl); + } +}); + +// @namespace Control.Zoom +// @factory L.control.zoom(options: Control.Zoom options) +// Creates a zoom control +var zoom = function (options) { + return new Zoom(options); +}; /* - * @class Renderer - * @inherits Layer - * @aka L.Renderer - * - * Base class for vector renderer implementations (`SVG`, `Canvas`). Handles the - * DOM container of the renderer, its bounds, and its zoom animation. + * @class Control.Scale + * @aka L.Control.Scale + * @inherits Control * - * A `Renderer` works as an implicit layer group for all `Path`s - the renderer - * itself can be added or removed to the map. All paths use a renderer, which can - * be implicit (the map will decide the type of renderer and use it automatically) - * or explicit (using the [`renderer`](#path-renderer) option of the path). + * A simple scale control that shows the scale of the current center of screen in metric (m/km) and imperial (mi/ft) systems. Extends `Control`. * - * Do not use this class directly, use `SVG` and `Canvas` instead. + * @example * - * @event update: Event - * Fired when the renderer updates its bounds, center and zoom, for example when - * its map has moved + * ```js + * L.control.scale().addTo(map); + * ``` */ -L.Renderer = L.Layer.extend({ - +var Scale = Control.extend({ // @section - // @aka Renderer options + // @aka Control.Scale options options: { - // @option padding: Number = 0.1 - // How much to extend the clip area around the map view (relative to its size) - // e.g. 0.1 would be 10% of map view in each direction - padding: 0.1 - }, - - initialize: function (options) { - L.setOptions(this, options); - L.stamp(this); - this._layers = this._layers || {}; - }, - - onAdd: function () { - if (!this._container) { - this._initContainer(); // defined by renderer implementations - - if (this._zoomAnimated) { - L.DomUtil.addClass(this._container, 'leaflet-zoom-animated'); - } - } - - this.getPane().appendChild(this._container); - this._update(); - this.on('update', this._updatePaths, this); - }, + position: 'bottomleft', - onRemove: function () { - L.DomUtil.remove(this._container); - this.off('update', this._updatePaths, this); - }, + // @option maxWidth: Number = 100 + // Maximum width of the control in pixels. The width is set dynamically to show round values (e.g. 100, 200, 500). + maxWidth: 100, - getEvents: function () { - var events = { - viewreset: this._reset, - zoom: this._onZoom, - moveend: this._update, - zoomend: this._onZoomEnd - }; - if (this._zoomAnimated) { - events.zoomanim = this._onAnimZoom; - } - return events; - }, + // @option metric: Boolean = True + // Whether to show the metric scale line (m/km). + metric: true, - _onAnimZoom: function (ev) { - this._updateTransform(ev.center, ev.zoom); - }, + // @option imperial: Boolean = True + // Whether to show the imperial scale line (mi/ft). + imperial: true - _onZoom: function () { - this._updateTransform(this._map.getCenter(), this._map.getZoom()); + // @option updateWhenIdle: Boolean = false + // If `true`, the control is updated on [`moveend`](#map-moveend), otherwise it's always up-to-date (updated on [`move`](#map-move)). }, - _updateTransform: function (center, zoom) { - var scale = this._map.getZoomScale(zoom, this._zoom), - position = L.DomUtil.getPosition(this._container), - viewHalf = this._map.getSize().multiplyBy(0.5 + this.options.padding), - currentCenterPoint = this._map.project(this._center, zoom), - destCenterPoint = this._map.project(center, zoom), - centerOffset = destCenterPoint.subtract(currentCenterPoint), - - topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset); - - if (L.Browser.any3d) { - L.DomUtil.setTransform(this._container, topLeftOffset, scale); - } else { - L.DomUtil.setPosition(this._container, topLeftOffset); - } - }, + onAdd: function (map) { + var className = 'leaflet-control-scale', + container = create$1('div', className), + options = this.options; - _reset: function () { - this._update(); - this._updateTransform(this._center, this._zoom); + this._addScales(options, className + '-line', container); - for (var id in this._layers) { - this._layers[id]._reset(); - } + map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this); + map.whenReady(this._update, this); + + return container; }, - _onZoomEnd: function () { - for (var id in this._layers) { - this._layers[id]._project(); - } + onRemove: function (map) { + map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this); }, - _updatePaths: function () { - for (var id in this._layers) { - this._layers[id]._update(); + _addScales: function (options, className, container) { + if (options.metric) { + this._mScale = create$1('div', className, container); + } + if (options.imperial) { + this._iScale = create$1('div', className, container); } }, _update: function () { - // Update pixel bounds of renderer container (for positioning/sizing/clipping later) - // Subclasses are responsible of firing the 'update' event. - var p = this.options.padding, - size = this._map.getSize(), - min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round(); - - this._bounds = new L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round()); - - this._center = this._map.getCenter(); - this._zoom = this._map.getZoom(); - } -}); - - -L.Map.include({ - // @namespace Map; @method getRenderer(layer: Path): Renderer - // Returns the instance of `Renderer` that should be used to render the given - // `Path`. It will ensure that the `renderer` options of the map and paths - // are respected, and that the renderers do exist on the map. - getRenderer: function (layer) { - // @namespace Path; @option renderer: Renderer - // Use this specific instance of `Renderer` for this path. Takes - // precedence over the map's [default renderer](#map-renderer). - var renderer = layer.options.renderer || this._getPaneRenderer(layer.options.pane) || this.options.renderer || this._renderer; + var map = this._map, + y = map.getSize().y / 2; - if (!renderer) { - // @namespace Map; @option preferCanvas: Boolean = false - // Whether `Path`s should be rendered on a `Canvas` renderer. - // By default, all `Path`s are rendered in a `SVG` renderer. - renderer = this._renderer = (this.options.preferCanvas && L.canvas()) || L.svg(); - } + var maxMeters = map.distance( + map.containerPointToLatLng([0, y]), + map.containerPointToLatLng([this.options.maxWidth, y])); - if (!this.hasLayer(renderer)) { - this.addLayer(renderer); - } - return renderer; + this._updateScales(maxMeters); }, - _getPaneRenderer: function (name) { - if (name === 'overlayPane' || name === undefined) { - return false; + _updateScales: function (maxMeters) { + if (this.options.metric && maxMeters) { + this._updateMetric(maxMeters); } - - var renderer = this._paneRenderers[name]; - if (renderer === undefined) { - renderer = (L.SVG && L.svg({pane: name})) || (L.Canvas && L.canvas({pane: name})); - this._paneRenderers[name] = renderer; + if (this.options.imperial && maxMeters) { + this._updateImperial(maxMeters); } - return renderer; - } -}); - - - -/* - * @class Path - * @aka L.Path - * @inherits Interactive layer - * - * An abstract class that contains options and constants shared between vector - * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`. - */ + }, -L.Path = L.Layer.extend({ + _updateMetric: function (maxMeters) { + var meters = this._getRoundNum(maxMeters), + label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km'; - // @section - // @aka Path options - options: { - // @option stroke: Boolean = true - // Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles. - stroke: true, + this._updateScale(this._mScale, label, meters / maxMeters); + }, - // @option color: String = '#3388ff' - // Stroke color - color: '#3388ff', + _updateImperial: function (maxMeters) { + var maxFeet = maxMeters * 3.2808399, + maxMiles, miles, feet; - // @option weight: Number = 3 - // Stroke width in pixels - weight: 3, + if (maxFeet > 5280) { + maxMiles = maxFeet / 5280; + miles = this._getRoundNum(maxMiles); + this._updateScale(this._iScale, miles + ' mi', miles / maxMiles); - // @option opacity: Number = 1.0 - // Stroke opacity - opacity: 1, + } else { + feet = this._getRoundNum(maxFeet); + this._updateScale(this._iScale, feet + ' ft', feet / maxFeet); + } + }, - // @option lineCap: String= 'round' - // A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke. - lineCap: 'round', + _updateScale: function (scale, text, ratio) { + scale.style.width = Math.round(this.options.maxWidth * ratio) + 'px'; + scale.innerHTML = text; + }, - // @option lineJoin: String = 'round' - // A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke. - lineJoin: 'round', + _getRoundNum: function (num) { + var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1), + d = num / pow10; - // @option dashArray: String = null - // A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility). - dashArray: null, + d = d >= 10 ? 10 : + d >= 5 ? 5 : + d >= 3 ? 3 : + d >= 2 ? 2 : 1; - // @option dashOffset: String = null - // A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility). - dashOffset: null, + return pow10 * d; + } +}); - // @option fill: Boolean = depends - // Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles. - fill: false, - // @option fillColor: String = * - // Fill color. Defaults to the value of the [`color`](#path-color) option - fillColor: null, +// @factory L.control.scale(options?: Control.Scale options) +// Creates an scale control with the given options. +var scale = function (options) { + return new Scale(options); +}; - // @option fillOpacity: Number = 0.2 - // Fill opacity. - fillOpacity: 0.2, +/* + * @class Control.Attribution + * @aka L.Control.Attribution + * @inherits Control + * + * The attribution control allows you to display attribution data in a small text box on a map. It is put on the map by default unless you set its [`attributionControl` option](#map-attributioncontrol) to `false`, and it fetches attribution texts from layers with the [`getAttribution` method](#layer-getattribution) automatically. Extends Control. + */ + +var Attribution = Control.extend({ + // @section + // @aka Control.Attribution options + options: { + position: 'bottomright', + + // @option prefix: String = 'Leaflet' + // The HTML text shown before the attributions. Pass `false` to disable. + prefix: 'Leaflet' + }, + + initialize: function (options) { + setOptions(this, options); + + this._attributions = {}; + }, + + onAdd: function (map) { + map.attributionControl = this; + this._container = create$1('div', 'leaflet-control-attribution'); + disableClickPropagation(this._container); + + // TODO ugly, refactor + for (var i in map._layers) { + if (map._layers[i].getAttribution) { + this.addAttribution(map._layers[i].getAttribution()); + } + } + + this._update(); + + return this._container; + }, + + // @method setPrefix(prefix: String): this + // Sets the text before the attributions. + setPrefix: function (prefix) { + this.options.prefix = prefix; + this._update(); + return this; + }, + + // @method addAttribution(text: String): this + // Adds an attribution text (e.g. `'Vector data © Mapbox'`). + addAttribution: function (text) { + if (!text) { return this; } + + if (!this._attributions[text]) { + this._attributions[text] = 0; + } + this._attributions[text]++; + + this._update(); + + return this; + }, + + // @method removeAttribution(text: String): this + // Removes an attribution text. + removeAttribution: function (text) { + if (!text) { return this; } + + if (this._attributions[text]) { + this._attributions[text]--; + this._update(); + } + + return this; + }, + + _update: function () { + if (!this._map) { return; } + + var attribs = []; + + for (var i in this._attributions) { + if (this._attributions[i]) { + attribs.push(i); + } + } + + var prefixAndAttribs = []; + + if (this.options.prefix) { + prefixAndAttribs.push(this.options.prefix); + } + if (attribs.length) { + prefixAndAttribs.push(attribs.join(', ')); + } + + this._container.innerHTML = prefixAndAttribs.join(' | '); + } +}); + +// @namespace Map +// @section Control options +// @option attributionControl: Boolean = true +// Whether a [attribution control](#control-attribution) is added to the map by default. +Map.mergeOptions({ + attributionControl: true +}); + +Map.addInitHook(function () { + if (this.options.attributionControl) { + new Attribution().addTo(this); + } +}); + +// @namespace Control.Attribution +// @factory L.control.attribution(options: Control.Attribution options) +// Creates an attribution control. +var attribution = function (options) { + return new Attribution(options); +}; - // @option fillRule: String = 'evenodd' - // A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined. - fillRule: 'evenodd', +Control.Layers = Layers; +Control.Zoom = Zoom; +Control.Scale = Scale; +Control.Attribution = Attribution; - // className: '', +control.layers = layers; +control.zoom = zoom; +control.scale = scale; +control.attribution = attribution; - // Option inherited from "Interactive layer" abstract class - interactive: true - }, +/* + L.Handler is a base class for handler classes that are used internally to inject + interaction features like dragging to classes like Map and Marker. +*/ - beforeAdd: function (map) { - // Renderer is set here because we need to call renderer.getEvents - // before this.getEvents. - this._renderer = map.getRenderer(this); - }, +// @class Handler +// @aka L.Handler +// Abstract class for map interaction handlers - onAdd: function () { - this._renderer._initPath(this); - this._reset(); - this._renderer._addPath(this); +var Handler = Class.extend({ + initialize: function (map) { + this._map = map; }, - onRemove: function () { - this._renderer._removePath(this); - }, + // @method enable(): this + // Enables the handler + enable: function () { + if (this._enabled) { return this; } - // @method redraw(): this - // Redraws the layer. Sometimes useful after you changed the coordinates that the path uses. - redraw: function () { - if (this._map) { - this._renderer._updatePath(this); - } + this._enabled = true; + this.addHooks(); return this; }, - // @method setStyle(style: Path options): this - // Changes the appearance of a Path based on the options in the `Path options` object. - setStyle: function (style) { - L.setOptions(this, style); - if (this._renderer) { - this._renderer._updateStyle(this); - } - return this; - }, + // @method disable(): this + // Disables the handler + disable: function () { + if (!this._enabled) { return this; } - // @method bringToFront(): this - // Brings the layer to the top of all path layers. - bringToFront: function () { - if (this._renderer) { - this._renderer._bringToFront(this); - } + this._enabled = false; + this.removeHooks(); return this; }, - // @method bringToBack(): this - // Brings the layer to the bottom of all path layers. - bringToBack: function () { - if (this._renderer) { - this._renderer._bringToBack(this); - } - return this; - }, + // @method enabled(): Boolean + // Returns `true` if the handler is enabled + enabled: function () { + return !!this._enabled; + } - getElement: function () { - return this._path; - }, + // @section Extension methods + // Classes inheriting from `Handler` must implement the two following methods: + // @method addHooks() + // Called when the handler is enabled, should add event hooks. + // @method removeHooks() + // Called when the handler is disabled, should remove the event hooks added previously. +}); - _reset: function () { - // defined in children classes - this._project(); - this._update(); - }, +var Mixin = {Events: Events}; - _clickTolerance: function () { - // used when doing hit detection for Canvas layers - return (this.options.stroke ? this.options.weight / 2 : 0) + (L.Browser.touch ? 10 : 0); - } +/* + * @class Draggable + * @aka L.Draggable + * @inherits Evented + * + * A class for making DOM elements draggable (including touch support). + * Used internally for map and marker dragging. Only works for elements + * that were positioned with [`L.DomUtil.setPosition`](#domutil-setposition). + * + * @example + * ```js + * var draggable = new L.Draggable(elementToDrag); + * draggable.enable(); + * ``` + */ + +var _dragging = false; +var START = touch ? 'touchstart mousedown' : 'mousedown'; +var END = { + mousedown: 'mouseup', + touchstart: 'touchend', + pointerdown: 'touchend', + MSPointerDown: 'touchend' +}; +var MOVE = { + mousedown: 'mousemove', + touchstart: 'touchmove', + pointerdown: 'touchmove', + MSPointerDown: 'touchmove' +}; + + +var Draggable = Evented.extend({ + + options: { + // @section + // @aka Draggable options + // @option clickTolerance: Number = 3 + // The max number of pixels a user can shift the mouse pointer during a click + // for it to be considered a valid click (as opposed to a mouse drag). + clickTolerance: 3 + }, + + // @constructor L.Draggable(el: HTMLElement, dragHandle?: HTMLElement, preventOutline?: Boolean, options?: Draggable options) + // Creates a `Draggable` object for moving `el` when you start dragging the `dragHandle` element (equals `el` itself by default). + initialize: function (element, dragStartTarget, preventOutline$$1, options) { + setOptions(this, options); + + this._element = element; + this._dragStartTarget = dragStartTarget || element; + this._preventOutline = preventOutline$$1; + }, + + // @method enable() + // Enables the dragging ability + enable: function () { + if (this._enabled) { return; } + + on(this._dragStartTarget, START, this._onDown, this); + + this._enabled = true; + }, + + // @method disable() + // Disables the dragging ability + disable: function () { + if (!this._enabled) { return; } + + // If we're currently dragging this draggable, + // disabling it counts as first ending the drag. + if (L.Draggable._dragging === this) { + this.finishDrag(); + } + + off(this._dragStartTarget, START, this._onDown, this); + + this._enabled = false; + this._moved = false; + }, + + _onDown: function (e) { + // Ignore simulated events, since we handle both touch and + // mouse explicitly; otherwise we risk getting duplicates of + // touch events, see #4315. + // Also ignore the event if disabled; this happens in IE11 + // under some circumstances, see #3666. + if (e._simulated || !this._enabled) { return; } + + this._moved = false; + + if (hasClass(this._element, 'leaflet-zoom-anim')) { return; } + + if (_dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; } + _dragging = this; // Prevent dragging multiple objects at once. + + if (this._preventOutline) { + preventOutline(this._element); + } + + disableImageDrag(); + disableTextSelection(); + + if (this._moving) { return; } + + // @event down: Event + // Fired when a drag is about to start. + this.fire('down'); + + var first = e.touches ? e.touches[0] : e; + + this._startPoint = new Point(first.clientX, first.clientY); + + on(document, MOVE[e.type], this._onMove, this); + on(document, END[e.type], this._onUp, this); + }, + + _onMove: function (e) { + // Ignore simulated events, since we handle both touch and + // mouse explicitly; otherwise we risk getting duplicates of + // touch events, see #4315. + // Also ignore the event if disabled; this happens in IE11 + // under some circumstances, see #3666. + if (e._simulated || !this._enabled) { return; } + + if (e.touches && e.touches.length > 1) { + this._moved = true; + return; + } + + var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), + newPoint = new Point(first.clientX, first.clientY), + offset = newPoint.subtract(this._startPoint); + + if (!offset.x && !offset.y) { return; } + if (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; } + + preventDefault(e); + + if (!this._moved) { + // @event dragstart: Event + // Fired when a drag starts + this.fire('dragstart'); + + this._moved = true; + this._startPos = getPosition(this._element).subtract(offset); + + addClass(document.body, 'leaflet-dragging'); + + this._lastTarget = e.target || e.srcElement; + // IE and Edge do not give the element, so fetch it + // if necessary + if ((window.SVGElementInstance) && (this._lastTarget instanceof SVGElementInstance)) { + this._lastTarget = this._lastTarget.correspondingUseElement; + } + addClass(this._lastTarget, 'leaflet-drag-target'); + } + + this._newPos = this._startPos.add(offset); + this._moving = true; + + cancelAnimFrame(this._animRequest); + this._lastEvent = e; + this._animRequest = requestAnimFrame(this._updatePosition, this, true); + }, + + _updatePosition: function () { + var e = {originalEvent: this._lastEvent}; + + // @event predrag: Event + // Fired continuously during dragging *before* each corresponding + // update of the element's position. + this.fire('predrag', e); + setPosition(this._element, this._newPos); + + // @event drag: Event + // Fired continuously during dragging. + this.fire('drag', e); + }, + + _onUp: function (e) { + // Ignore simulated events, since we handle both touch and + // mouse explicitly; otherwise we risk getting duplicates of + // touch events, see #4315. + // Also ignore the event if disabled; this happens in IE11 + // under some circumstances, see #3666. + if (e._simulated || !this._enabled) { return; } + this.finishDrag(); + }, + + finishDrag: function () { + removeClass(document.body, 'leaflet-dragging'); + + if (this._lastTarget) { + removeClass(this._lastTarget, 'leaflet-drag-target'); + this._lastTarget = null; + } + + for (var i in MOVE) { + off(document, MOVE[i], this._onMove, this); + off(document, END[i], this._onUp, this); + } + + enableImageDrag(); + enableTextSelection(); + + if (this._moved && this._moving) { + // ensure drag is not fired after dragend + cancelAnimFrame(this._animRequest); + + // @event dragend: DragEndEvent + // Fired when the drag ends. + this.fire('dragend', { + distance: this._newPos.distanceTo(this._startPos) + }); + } + + this._moving = false; + _dragging = false; + } + }); - - /* * @namespace LineUtil * * Various utility functions for polyine points processing, used by Leaflet internally to make polylines lightning-fast. */ -L.LineUtil = { - - // Simplify polyline with vertex reduction and Douglas-Peucker simplification. - // Improves rendering performance dramatically by lessening the number of points to draw. - - // @function simplify(points: Point[], tolerance: Number): Point[] - // Dramatically reduces the number of points in a polyline while retaining - // its shape and returns a new array of simplified points, using the - // [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm). - // Used for a huge performance boost when processing/displaying Leaflet polylines for - // each zoom level and also reducing visual noise. tolerance affects the amount of - // simplification (lesser value means higher quality but slower and with more points). - // Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/). - simplify: function (points, tolerance) { - if (!tolerance || !points.length) { - return points.slice(); - } +// Simplify polyline with vertex reduction and Douglas-Peucker simplification. +// Improves rendering performance dramatically by lessening the number of points to draw. + +// @function simplify(points: Point[], tolerance: Number): Point[] +// Dramatically reduces the number of points in a polyline while retaining +// its shape and returns a new array of simplified points, using the +// [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm). +// Used for a huge performance boost when processing/displaying Leaflet polylines for +// each zoom level and also reducing visual noise. tolerance affects the amount of +// simplification (lesser value means higher quality but slower and with more points). +// Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/). +function simplify(points, tolerance) { + if (!tolerance || !points.length) { + return points.slice(); + } - var sqTolerance = tolerance * tolerance; + var sqTolerance = tolerance * tolerance; - // stage 1: vertex reduction - points = this._reducePoints(points, sqTolerance); + // stage 1: vertex reduction + points = _reducePoints(points, sqTolerance); - // stage 2: Douglas-Peucker simplification - points = this._simplifyDP(points, sqTolerance); + // stage 2: Douglas-Peucker simplification + points = _simplifyDP(points, sqTolerance); - return points; - }, + return points; +} - // @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number - // Returns the distance between point `p` and segment `p1` to `p2`. - pointToSegmentDistance: function (p, p1, p2) { - return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true)); - }, +// @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number +// Returns the distance between point `p` and segment `p1` to `p2`. +function pointToSegmentDistance(p, p1, p2) { + return Math.sqrt(_sqClosestPointOnSegment(p, p1, p2, true)); +} - // @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number - // Returns the closest point from a point `p` on a segment `p1` to `p2`. - closestPointOnSegment: function (p, p1, p2) { - return this._sqClosestPointOnSegment(p, p1, p2); - }, +// @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number +// Returns the closest point from a point `p` on a segment `p1` to `p2`. +function closestPointOnSegment(p, p1, p2) { + return _sqClosestPointOnSegment(p, p1, p2); +} - // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm - _simplifyDP: function (points, sqTolerance) { +// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm +function _simplifyDP(points, sqTolerance) { - var len = points.length, - ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array, - markers = new ArrayConstructor(len); + var len = points.length, + ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array, + markers = new ArrayConstructor(len); - markers[0] = markers[len - 1] = 1; + markers[0] = markers[len - 1] = 1; - this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1); + _simplifyDPStep(points, markers, sqTolerance, 0, len - 1); - var i, - newPoints = []; + var i, + newPoints = []; - for (i = 0; i < len; i++) { - if (markers[i]) { - newPoints.push(points[i]); - } + for (i = 0; i < len; i++) { + if (markers[i]) { + newPoints.push(points[i]); } + } - return newPoints; - }, + return newPoints; +} - _simplifyDPStep: function (points, markers, sqTolerance, first, last) { +function _simplifyDPStep(points, markers, sqTolerance, first, last) { - var maxSqDist = 0, - index, i, sqDist; + var maxSqDist = 0, + index, i, sqDist; - for (i = first + 1; i <= last - 1; i++) { - sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true); + for (i = first + 1; i <= last - 1; i++) { + sqDist = _sqClosestPointOnSegment(points[i], points[first], points[last], true); - if (sqDist > maxSqDist) { - index = i; - maxSqDist = sqDist; - } + if (sqDist > maxSqDist) { + index = i; + maxSqDist = sqDist; } + } + + if (maxSqDist > sqTolerance) { + markers[index] = 1; + + _simplifyDPStep(points, markers, sqTolerance, first, index); + _simplifyDPStep(points, markers, sqTolerance, index, last); + } +} - if (maxSqDist > sqTolerance) { - markers[index] = 1; +// reduce points that are too close to each other to a single point +function _reducePoints(points, sqTolerance) { + var reducedPoints = [points[0]]; - this._simplifyDPStep(points, markers, sqTolerance, first, index); - this._simplifyDPStep(points, markers, sqTolerance, index, last); + for (var i = 1, prev = 0, len = points.length; i < len; i++) { + if (_sqDist(points[i], points[prev]) > sqTolerance) { + reducedPoints.push(points[i]); + prev = i; } - }, + } + if (prev < len - 1) { + reducedPoints.push(points[len - 1]); + } + return reducedPoints; +} - // reduce points that are too close to each other to a single point - _reducePoints: function (points, sqTolerance) { - var reducedPoints = [points[0]]; +var _lastCode; - for (var i = 1, prev = 0, len = points.length; i < len; i++) { - if (this._sqDist(points[i], points[prev]) > sqTolerance) { - reducedPoints.push(points[i]); - prev = i; - } +// @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean +// Clips the segment a to b by rectangular bounds with the +// [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm) +// (modifying the segment points directly!). Used by Leaflet to only show polyline +// points that are on the screen or near, increasing performance. +function clipSegment(a, b, bounds, useLastCode, round) { + var codeA = useLastCode ? _lastCode : _getBitCode(a, bounds), + codeB = _getBitCode(b, bounds), + + codeOut, p, newCode; + + // save 2nd code to avoid calculating it on the next segment + _lastCode = codeB; + + while (true) { + // if a,b is inside the clip window (trivial accept) + if (!(codeA | codeB)) { + return [a, b]; } - if (prev < len - 1) { - reducedPoints.push(points[len - 1]); + + // if a,b is outside the clip window (trivial reject) + if (codeA & codeB) { + return false; } - return reducedPoints; - }, + // other cases + codeOut = codeA || codeB; + p = _getEdgeIntersection(a, b, codeOut, bounds, round); + newCode = _getBitCode(p, bounds); + + if (codeOut === codeA) { + a = p; + codeA = newCode; + } else { + b = p; + codeB = newCode; + } + } +} - // @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean - // Clips the segment a to b by rectangular bounds with the - // [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm) - // (modifying the segment points directly!). Used by Leaflet to only show polyline - // points that are on the screen or near, increasing performance. - clipSegment: function (a, b, bounds, useLastCode, round) { - var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds), - codeB = this._getBitCode(b, bounds), +function _getEdgeIntersection(a, b, code, bounds, round) { + var dx = b.x - a.x, + dy = b.y - a.y, + min = bounds.min, + max = bounds.max, + x, y; - codeOut, p, newCode; + if (code & 8) { // top + x = a.x + dx * (max.y - a.y) / dy; + y = max.y; - // save 2nd code to avoid calculating it on the next segment - this._lastCode = codeB; + } else if (code & 4) { // bottom + x = a.x + dx * (min.y - a.y) / dy; + y = min.y; - while (true) { - // if a,b is inside the clip window (trivial accept) - if (!(codeA | codeB)) { - return [a, b]; - } + } else if (code & 2) { // right + x = max.x; + y = a.y + dy * (max.x - a.x) / dx; - // if a,b is outside the clip window (trivial reject) - if (codeA & codeB) { - return false; - } + } else if (code & 1) { // left + x = min.x; + y = a.y + dy * (min.x - a.x) / dx; + } - // other cases - codeOut = codeA || codeB; - p = this._getEdgeIntersection(a, b, codeOut, bounds, round); - newCode = this._getBitCode(p, bounds); + return new Point(x, y, round); +} - if (codeOut === codeA) { - a = p; - codeA = newCode; - } else { - b = p; - codeB = newCode; - } - } - }, +function _getBitCode(p, bounds) { + var code = 0; - _getEdgeIntersection: function (a, b, code, bounds, round) { - var dx = b.x - a.x, - dy = b.y - a.y, - min = bounds.min, - max = bounds.max, - x, y; + if (p.x < bounds.min.x) { // left + code |= 1; + } else if (p.x > bounds.max.x) { // right + code |= 2; + } - if (code & 8) { // top - x = a.x + dx * (max.y - a.y) / dy; - y = max.y; + if (p.y < bounds.min.y) { // bottom + code |= 4; + } else if (p.y > bounds.max.y) { // top + code |= 8; + } - } else if (code & 4) { // bottom - x = a.x + dx * (min.y - a.y) / dy; - y = min.y; + return code; +} - } else if (code & 2) { // right - x = max.x; - y = a.y + dy * (max.x - a.x) / dx; +// square distance (to avoid unnecessary Math.sqrt calls) +function _sqDist(p1, p2) { + var dx = p2.x - p1.x, + dy = p2.y - p1.y; + return dx * dx + dy * dy; +} - } else if (code & 1) { // left - x = min.x; - y = a.y + dy * (min.x - a.x) / dx; +// return closest point on segment or distance to that point +function _sqClosestPointOnSegment(p, p1, p2, sqDist) { + var x = p1.x, + y = p1.y, + dx = p2.x - x, + dy = p2.y - y, + dot = dx * dx + dy * dy, + t; + + if (dot > 0) { + t = ((p.x - x) * dx + (p.y - y) * dy) / dot; + + if (t > 1) { + x = p2.x; + y = p2.y; + } else if (t > 0) { + x += dx * t; + y += dy * t; } + } - return new L.Point(x, y, round); - }, + dx = p.x - x; + dy = p.y - y; - _getBitCode: function (p, bounds) { - var code = 0; + return sqDist ? dx * dx + dy * dy : new Point(x, y); +} - if (p.x < bounds.min.x) { // left - code |= 1; - } else if (p.x > bounds.max.x) { // right - code |= 2; - } - if (p.y < bounds.min.y) { // bottom - code |= 4; - } else if (p.y > bounds.max.y) { // top - code |= 8; +function _flat(latlngs) { + // true if it's a flat array of latlngs; false if nested + return !isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined'); +} + + +var LineUtil = (Object.freeze || Object)({ + simplify: simplify, + pointToSegmentDistance: pointToSegmentDistance, + closestPointOnSegment: closestPointOnSegment, + clipSegment: clipSegment, + _getEdgeIntersection: _getEdgeIntersection, + _getBitCode: _getBitCode, + _sqClosestPointOnSegment: _sqClosestPointOnSegment, + _flat: _flat +}); + +/* + * @namespace PolyUtil + * Various utility functions for polygon geometries. + */ + +/* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[] + * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgeman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)). + * Used by Leaflet to only show polygon points that are on the screen or near, increasing + * performance. Note that polygon points needs different algorithm for clipping + * than polyline, so there's a seperate method for it. + */ +function clipPolygon(points, bounds, round) { + var clippedPoints, + edges = [1, 4, 2, 8], + i, j, k, + a, b, + len, edge, p; + + for (i = 0, len = points.length; i < len; i++) { + points[i]._code = _getBitCode(points[i], bounds); + } + + // for each edge (left, bottom, right, top) + for (k = 0; k < 4; k++) { + edge = edges[k]; + clippedPoints = []; + + for (i = 0, len = points.length, j = len - 1; i < len; j = i++) { + a = points[i]; + b = points[j]; + + // if a is inside the clip window + if (!(a._code & edge)) { + // if b is outside the clip window (a->b goes out of screen) + if (b._code & edge) { + p = _getEdgeIntersection(b, a, edge, bounds, round); + p._code = _getBitCode(p, bounds); + clippedPoints.push(p); + } + clippedPoints.push(a); + + // else if b is inside the clip window (a->b enters the screen) + } else if (!(b._code & edge)) { + p = _getEdgeIntersection(b, a, edge, bounds, round); + p._code = _getBitCode(p, bounds); + clippedPoints.push(p); + } } + points = clippedPoints; + } + + return points; +} + + +var PolyUtil = (Object.freeze || Object)({ + clipPolygon: clipPolygon +}); + +/* + * @namespace Projection + * @section + * Leaflet comes with a set of already defined Projections out of the box: + * + * @projection L.Projection.LonLat + * + * Equirectangular, or Plate Carree projection — the most simple projection, + * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as + * latitude. Also suitable for flat worlds, e.g. game maps. Used by the + * `EPSG:4326` and `Simple` CRS. + */ - return code; +var LonLat = { + project: function (latlng) { + return new Point(latlng.lng, latlng.lat); }, - // square distance (to avoid unnecessary Math.sqrt calls) - _sqDist: function (p1, p2) { - var dx = p2.x - p1.x, - dy = p2.y - p1.y; - return dx * dx + dy * dy; + unproject: function (point) { + return new LatLng(point.y, point.x); }, - // return closest point on segment or distance to that point - _sqClosestPointOnSegment: function (p, p1, p2, sqDist) { - var x = p1.x, - y = p1.y, - dx = p2.x - x, - dy = p2.y - y, - dot = dx * dx + dy * dy, - t; + bounds: new Bounds([-180, -90], [180, 90]) +}; + +/* + * @namespace Projection + * @projection L.Projection.Mercator + * + * Elliptical Mercator projection — more complex than Spherical Mercator. Takes into account that Earth is a geoid, not a perfect sphere. Used by the EPSG:3395 CRS. + */ + +var Mercator = { + R: 6378137, + R_MINOR: 6356752.314245179, - if (dot > 0) { - t = ((p.x - x) * dx + (p.y - y) * dy) / dot; + bounds: new Bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]), - if (t > 1) { - x = p2.x; - y = p2.y; - } else if (t > 0) { - x += dx * t; - y += dy * t; - } - } + project: function (latlng) { + var d = Math.PI / 180, + r = this.R, + y = latlng.lat * d, + tmp = this.R_MINOR / r, + e = Math.sqrt(1 - tmp * tmp), + con = e * Math.sin(y); + + var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2); + y = -r * Math.log(Math.max(ts, 1E-10)); + + return new Point(latlng.lng * d * r, y); + }, + + unproject: function (point) { + var d = 180 / Math.PI, + r = this.R, + tmp = this.R_MINOR / r, + e = Math.sqrt(1 - tmp * tmp), + ts = Math.exp(-point.y / r), + phi = Math.PI / 2 - 2 * Math.atan(ts); - dx = p.x - x; - dy = p.y - y; + for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) { + con = e * Math.sin(phi); + con = Math.pow((1 - con) / (1 + con), e / 2); + dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi; + phi += dphi; + } - return sqDist ? dx * dx + dy * dy : new L.Point(x, y); + return new LatLng(phi * d, point.x * d / r); } -}; +}; + +/* + * @class Projection + + * An object with methods for projecting geographical coordinates of the world onto + * a flat surface (and back). See [Map projection](http://en.wikipedia.org/wiki/Map_projection). + + * @property bounds: Bounds + * The bounds (specified in CRS units) where the projection is valid + + * @method project(latlng: LatLng): Point + * Projects geographical coordinates into a 2D point. + * Only accepts actual `L.LatLng` instances, not arrays. + + * @method unproject(point: Point): LatLng + * The inverse of `project`. Projects a 2D point into a geographical location. + * Only accepts actual `L.Point` instances, not arrays. + */ + + + + +var index = (Object.freeze || Object)({ + LonLat: LonLat, + Mercator: Mercator, + SphericalMercator: SphericalMercator +}); + +/* + * @namespace CRS + * @crs L.CRS.EPSG3395 + * + * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection. + */ +var EPSG3395 = extend({}, Earth, { + code: 'EPSG:3395', + projection: Mercator, + + transformation: (function () { + var scale = 0.5 / (Math.PI * Mercator.R); + return toTransformation(scale, 0.5, -scale, 0.5); + }()) +}); +/* + * @namespace CRS + * @crs L.CRS.EPSG4326 + * + * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection. + * + * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic), + * which is a breaking change from 0.7.x behaviour. If you are using a `TileLayer` + * with this CRS, ensure that there are two 256x256 pixel tiles covering the + * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90), + * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set. + */ + +var EPSG4326 = extend({}, Earth, { + code: 'EPSG:4326', + projection: LonLat, + transformation: toTransformation(1 / 180, 1, -1 / 180, 0.5) +}); /* - * @class Polyline - * @aka L.Polyline - * @inherits Path + * @namespace CRS + * @crs L.CRS.Simple + * + * A simple CRS that maps longitude and latitude into `x` and `y` directly. + * May be used for maps of flat surfaces (e.g. game maps). Note that the `y` + * axis should still be inverted (going from bottom to top). `distance()` returns + * simple euclidean distance. + */ + +var Simple = extend({}, CRS, { + projection: LonLat, + transformation: toTransformation(1, 0, -1, 0), + + scale: function (zoom) { + return Math.pow(2, zoom); + }, + + zoom: function (scale) { + return Math.log(scale) / Math.LN2; + }, + + distance: function (latlng1, latlng2) { + var dx = latlng2.lng - latlng1.lng, + dy = latlng2.lat - latlng1.lat; + + return Math.sqrt(dx * dx + dy * dy); + }, + + infinite: true +}); + +CRS.Earth = Earth; +CRS.EPSG3395 = EPSG3395; +CRS.EPSG3857 = EPSG3857; +CRS.EPSG900913 = EPSG900913; +CRS.EPSG4326 = EPSG4326; +CRS.Simple = Simple; + +/* + * @class Layer + * @inherits Evented + * @aka L.Layer + * @aka ILayer * - * A class for drawing polyline overlays on a map. Extends `Path`. + * A set of methods from the Layer base class that all Leaflet layers use. + * Inherits all methods, options and events from `L.Evented`. * * @example * * ```js - * // create a red polyline from an array of LatLng points - * var latlngs = [ - * [45.51, -122.68], - * [37.77, -122.43], - * [34.04, -118.2] - * ]; - * - * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map); - * - * // zoom the map to the polyline - * map.fitBounds(polyline.getBounds()); + * var layer = L.Marker(latlng).addTo(map); + * layer.addTo(map); + * layer.remove(); * ``` * - * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape: + * @event add: Event + * Fired after the layer is added to a map * - * ```js - * // create a red polyline from an array of arrays of LatLng points - * var latlngs = [ - * [[45.51, -122.68], - * [37.77, -122.43], - * [34.04, -118.2]], - * [[40.78, -73.91], - * [41.83, -87.62], - * [32.76, -96.72]] - * ]; - * ``` + * @event remove: Event + * Fired after the layer is removed from a map */ -L.Polyline = L.Path.extend({ - // @section - // @aka Polyline options +var Layer = Evented.extend({ + + // Classes extending `L.Layer` will inherit the following options: options: { - // @option smoothFactor: Number = 1.0 - // How much to simplify the polyline on each zoom level. More means - // better performance and smoother look, and less means more accurate representation. - smoothFactor: 1.0, + // @option pane: String = 'overlayPane' + // By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default. + pane: 'overlayPane', - // @option noClip: Boolean = false - // Disable polyline clipping. - noClip: false - }, + // @option attribution: String = null + // String to be shown in the attribution control, describes the layer data, e.g. "© Mapbox". + attribution: null, - initialize: function (latlngs, options) { - L.setOptions(this, options); - this._setLatLngs(latlngs); + bubblingMouseEvents: true }, - // @method getLatLngs(): LatLng[] - // Returns an array of the points in the path, or nested arrays of points in case of multi-polyline. - getLatLngs: function () { - return this._latlngs; + /* @section + * Classes extending `L.Layer` will inherit the following methods: + * + * @method addTo(map: Map): this + * Adds the layer to the given map + */ + addTo: function (map) { + map.addLayer(this); + return this; }, - // @method setLatLngs(latlngs: LatLng[]): this - // Replaces all the points in the polyline with the given array of geographical points. - setLatLngs: function (latlngs) { - this._setLatLngs(latlngs); - return this.redraw(); + // @method remove: this + // Removes the layer from the map it is currently active on. + remove: function () { + return this.removeFrom(this._map || this._mapToAdd); }, - // @method isEmpty(): Boolean - // Returns `true` if the Polyline has no LatLngs. - isEmpty: function () { - return !this._latlngs.length; + // @method removeFrom(map: Map): this + // Removes the layer from the given map + removeFrom: function (obj) { + if (obj) { + obj.removeLayer(this); + } + return this; }, - closestLayerPoint: function (p) { - var minDistance = Infinity, - minPoint = null, - closest = L.LineUtil._sqClosestPointOnSegment, - p1, p2; - - for (var j = 0, jLen = this._parts.length; j < jLen; j++) { - var points = this._parts[j]; - - for (var i = 1, len = points.length; i < len; i++) { - p1 = points[i - 1]; - p2 = points[i]; - - var sqDist = closest(p, p1, p2, true); + // @method getPane(name? : String): HTMLElement + // Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer. + getPane: function (name) { + return this._map.getPane(name ? (this.options[name] || name) : this.options.pane); + }, - if (sqDist < minDistance) { - minDistance = sqDist; - minPoint = closest(p, p1, p2); - } - } - } - if (minPoint) { - minPoint.distance = Math.sqrt(minDistance); - } - return minPoint; + addInteractiveTarget: function (targetEl) { + this._map._targets[stamp(targetEl)] = this; + return this; }, - // @method getCenter(): LatLng - // Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline. - getCenter: function () { - // throws error when not yet added to map as this center calculation requires projected coordinates - if (!this._map) { - throw new Error('Must add layer to map before using getCenter()'); - } + removeInteractiveTarget: function (targetEl) { + delete this._map._targets[stamp(targetEl)]; + return this; + }, - var i, halfDist, segDist, dist, p1, p2, ratio, - points = this._rings[0], - len = points.length; + // @method getAttribution: String + // Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution). + getAttribution: function () { + return this.options.attribution; + }, - if (!len) { return null; } + _layerAdd: function (e) { + var map = e.target; - // polyline centroid algorithm; only uses the first ring if there are multiple + // check in case layer gets added and then removed before the map is ready + if (!map.hasLayer(this)) { return; } - for (i = 0, halfDist = 0; i < len - 1; i++) { - halfDist += points[i].distanceTo(points[i + 1]) / 2; - } + this._map = map; + this._zoomAnimated = map._zoomAnimated; - // The line is so small in the current view that all points are on the same pixel. - if (halfDist === 0) { - return this._map.layerPointToLatLng(points[0]); + if (this.getEvents) { + var events = this.getEvents(); + map.on(events, this); + this.once('remove', function () { + map.off(events, this); + }, this); } - for (i = 0, dist = 0; i < len - 1; i++) { - p1 = points[i]; - p2 = points[i + 1]; - segDist = p1.distanceTo(p2); - dist += segDist; + this.onAdd(map); - if (dist > halfDist) { - ratio = (dist - halfDist) / segDist; - return this._map.layerPointToLatLng([ - p2.x - ratio * (p2.x - p1.x), - p2.y - ratio * (p2.y - p1.y) - ]); - } + if (this.getAttribution && map.attributionControl) { + map.attributionControl.addAttribution(this.getAttribution()); } - }, - - // @method getBounds(): LatLngBounds - // Returns the `LatLngBounds` of the path. - getBounds: function () { - return this._bounds; - }, - - // @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this - // Adds a given point to the polyline. By default, adds to the first ring of - // the polyline in case of a multi-polyline, but can be overridden by passing - // a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)). - addLatLng: function (latlng, latlngs) { - latlngs = latlngs || this._defaultShape(); - latlng = L.latLng(latlng); - latlngs.push(latlng); - this._bounds.extend(latlng); - return this.redraw(); - }, - _setLatLngs: function (latlngs) { - this._bounds = new L.LatLngBounds(); - this._latlngs = this._convertLatLngs(latlngs); - }, - - _defaultShape: function () { - return L.Polyline._flat(this._latlngs) ? this._latlngs : this._latlngs[0]; - }, - - // recursively convert latlngs input into actual LatLng instances; calculate bounds along the way - _convertLatLngs: function (latlngs) { - var result = [], - flat = L.Polyline._flat(latlngs); + this.fire('add'); + map.fire('layeradd', {layer: this}); + } +}); - for (var i = 0, len = latlngs.length; i < len; i++) { - if (flat) { - result[i] = L.latLng(latlngs[i]); - this._bounds.extend(result[i]); - } else { - result[i] = this._convertLatLngs(latlngs[i]); - } - } +/* @section Extension methods + * @uninheritable + * + * Every layer should extend from `L.Layer` and (re-)implement the following methods. + * + * @method onAdd(map: Map): this + * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer). + * + * @method onRemove(map: Map): this + * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer). + * + * @method getEvents(): Object + * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer. + * + * @method getAttribution(): String + * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible. + * + * @method beforeAdd(map: Map): this + * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only. + */ - return result; - }, - _project: function () { - var pxBounds = new L.Bounds(); - this._rings = []; - this._projectLatlngs(this._latlngs, this._rings, pxBounds); +/* @namespace Map + * @section Layer events + * + * @event layeradd: LayerEvent + * Fired when a new layer is added to the map. + * + * @event layerremove: LayerEvent + * Fired when some layer is removed from the map + * + * @section Methods for Layers and Controls + */ +Map.include({ + // @method addLayer(layer: Layer): this + // Adds the given layer to the map + addLayer: function (layer) { + var id = stamp(layer); + if (this._layers[id]) { return this; } + this._layers[id] = layer; - var w = this._clickTolerance(), - p = new L.Point(w, w); + layer._mapToAdd = this; - if (this._bounds.isValid() && pxBounds.isValid()) { - pxBounds.min._subtract(p); - pxBounds.max._add(p); - this._pxBounds = pxBounds; + if (layer.beforeAdd) { + layer.beforeAdd(this); } - }, - // recursively turns latlngs into a set of rings with projected coordinates - _projectLatlngs: function (latlngs, result, projectedBounds) { - var flat = latlngs[0] instanceof L.LatLng, - len = latlngs.length, - i, ring; + this.whenReady(layer._layerAdd, layer); - if (flat) { - ring = []; - for (i = 0; i < len; i++) { - ring[i] = this._map.latLngToLayerPoint(latlngs[i]); - projectedBounds.extend(ring[i]); - } - result.push(ring); - } else { - for (i = 0; i < len; i++) { - this._projectLatlngs(latlngs[i], result, projectedBounds); - } - } + return this; }, - // clip polyline by renderer bounds so that we have less to render for performance - _clipPoints: function () { - var bounds = this._renderer._bounds; + // @method removeLayer(layer: Layer): this + // Removes the given layer from the map. + removeLayer: function (layer) { + var id = stamp(layer); - this._parts = []; - if (!this._pxBounds || !this._pxBounds.intersects(bounds)) { - return; + if (!this._layers[id]) { return this; } + + if (this._loaded) { + layer.onRemove(this); } - if (this.options.noClip) { - this._parts = this._rings; - return; + if (layer.getAttribution && this.attributionControl) { + this.attributionControl.removeAttribution(layer.getAttribution()); } - var parts = this._parts, - i, j, k, len, len2, segment, points; + delete this._layers[id]; - for (i = 0, k = 0, len = this._rings.length; i < len; i++) { - points = this._rings[i]; + if (this._loaded) { + this.fire('layerremove', {layer: layer}); + layer.fire('remove'); + } - for (j = 0, len2 = points.length; j < len2 - 1; j++) { - segment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j, true); + layer._map = layer._mapToAdd = null; - if (!segment) { continue; } + return this; + }, - parts[k] = parts[k] || []; - parts[k].push(segment[0]); + // @method hasLayer(layer: Layer): Boolean + // Returns `true` if the given layer is currently added to the map + hasLayer: function (layer) { + return !!layer && (stamp(layer) in this._layers); + }, - // if segment goes out of screen, or it's the last one, it's the end of the line part - if ((segment[1] !== points[j + 1]) || (j === len2 - 2)) { - parts[k].push(segment[1]); - k++; - } - } + /* @method eachLayer(fn: Function, context?: Object): this + * Iterates over the layers of the map, optionally specifying context of the iterator function. + * ``` + * map.eachLayer(function(layer){ + * layer.bindPopup('Hello'); + * }); + * ``` + */ + eachLayer: function (method, context) { + for (var i in this._layers) { + method.call(context, this._layers[i]); } + return this; }, - // simplify each clipped part of the polyline for performance - _simplifyPoints: function () { - var parts = this._parts, - tolerance = this.options.smoothFactor; + _addLayers: function (layers) { + layers = layers ? (isArray(layers) ? layers : [layers]) : []; - for (var i = 0, len = parts.length; i < len; i++) { - parts[i] = L.LineUtil.simplify(parts[i], tolerance); + for (var i = 0, len = layers.length; i < len; i++) { + this.addLayer(layers[i]); } }, - _update: function () { - if (!this._map) { return; } + _addZoomLimit: function (layer) { + if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) { + this._zoomBoundLayers[stamp(layer)] = layer; + this._updateZoomLevels(); + } + }, - this._clipPoints(); - this._simplifyPoints(); - this._updatePath(); + _removeZoomLimit: function (layer) { + var id = stamp(layer); + + if (this._zoomBoundLayers[id]) { + delete this._zoomBoundLayers[id]; + this._updateZoomLevels(); + } }, - _updatePath: function () { - this._renderer._updatePoly(this); + _updateZoomLevels: function () { + var minZoom = Infinity, + maxZoom = -Infinity, + oldZoomSpan = this._getZoomSpan(); + + for (var i in this._zoomBoundLayers) { + var options = this._zoomBoundLayers[i].options; + + minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom); + maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom); + } + + this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom; + this._layersMinZoom = minZoom === Infinity ? undefined : minZoom; + + // @section Map state change events + // @event zoomlevelschange: Event + // Fired when the number of zoomlevels on the map is changed due + // to adding or removing a layer. + if (oldZoomSpan !== this._getZoomSpan()) { + this.fire('zoomlevelschange'); + } + + if (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) { + this.setZoom(this._layersMaxZoom); + } + if (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) { + this.setZoom(this._layersMinZoom); + } } }); -// @factory L.polyline(latlngs: LatLng[], options?: Polyline options) -// Instantiates a polyline object given an array of geographical points and -// optionally an options object. You can create a `Polyline` object with -// multiple separate lines (`MultiPolyline`) by passing an array of arrays -// of geographic points. -L.polyline = function (latlngs, options) { - return new L.Polyline(latlngs, options); +/* + * @class LayerGroup + * @aka L.LayerGroup + * @inherits Layer + * + * Used to group several layers and handle them as one. If you add it to the map, + * any layers added or removed from the group will be added/removed on the map as + * well. Extends `Layer`. + * + * @example + * + * ```js + * L.layerGroup([marker1, marker2]) + * .addLayer(polyline) + * .addTo(map); + * ``` + */ + +var LayerGroup = Layer.extend({ + + initialize: function (layers) { + this._layers = {}; + + var i, len; + + if (layers) { + for (i = 0, len = layers.length; i < len; i++) { + this.addLayer(layers[i]); + } + } + }, + + // @method addLayer(layer: Layer): this + // Adds the given layer to the group. + addLayer: function (layer) { + var id = this.getLayerId(layer); + + this._layers[id] = layer; + + if (this._map) { + this._map.addLayer(layer); + } + + return this; + }, + + // @method removeLayer(layer: Layer): this + // Removes the given layer from the group. + // @alternative + // @method removeLayer(id: Number): this + // Removes the layer with the given internal ID from the group. + removeLayer: function (layer) { + var id = layer in this._layers ? layer : this.getLayerId(layer); + + if (this._map && this._layers[id]) { + this._map.removeLayer(this._layers[id]); + } + + delete this._layers[id]; + + return this; + }, + + // @method hasLayer(layer: Layer): Boolean + // Returns `true` if the given layer is currently added to the group. + // @alternative + // @method hasLayer(id: Number): Boolean + // Returns `true` if the given internal ID is currently added to the group. + hasLayer: function (layer) { + return !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers); + }, + + // @method clearLayers(): this + // Removes all the layers from the group. + clearLayers: function () { + for (var i in this._layers) { + this.removeLayer(this._layers[i]); + } + return this; + }, + + // @method invoke(methodName: String, …): this + // Calls `methodName` on every layer contained in this group, passing any + // additional parameters. Has no effect if the layers contained do not + // implement `methodName`. + invoke: function (methodName) { + var args = Array.prototype.slice.call(arguments, 1), + i, layer; + + for (i in this._layers) { + layer = this._layers[i]; + + if (layer[methodName]) { + layer[methodName].apply(layer, args); + } + } + + return this; + }, + + onAdd: function (map) { + for (var i in this._layers) { + map.addLayer(this._layers[i]); + } + }, + + onRemove: function (map) { + for (var i in this._layers) { + map.removeLayer(this._layers[i]); + } + }, + + // @method eachLayer(fn: Function, context?: Object): this + // Iterates over the layers of the group, optionally specifying context of the iterator function. + // ```js + // group.eachLayer(function (layer) { + // layer.bindPopup('Hello'); + // }); + // ``` + eachLayer: function (method, context) { + for (var i in this._layers) { + method.call(context, this._layers[i]); + } + return this; + }, + + // @method getLayer(id: Number): Layer + // Returns the layer with the given internal ID. + getLayer: function (id) { + return this._layers[id]; + }, + + // @method getLayers(): Layer[] + // Returns an array of all the layers added to the group. + getLayers: function () { + var layers = []; + + for (var i in this._layers) { + layers.push(this._layers[i]); + } + return layers; + }, + + // @method setZIndex(zIndex: Number): this + // Calls `setZIndex` on every layer contained in this group, passing the z-index. + setZIndex: function (zIndex) { + return this.invoke('setZIndex', zIndex); + }, + + // @method getLayerId(layer: Layer): Number + // Returns the internal ID for a layer + getLayerId: function (layer) { + return stamp(layer); + } +}); + + +// @factory L.layerGroup(layers: Layer[]) +// Create a layer group, optionally given an initial set of layers. +var layerGroup = function (layers) { + return new LayerGroup(layers); }; -L.Polyline._flat = function (latlngs) { - // true if it's a flat array of latlngs; false if nested - return !L.Util.isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined'); +/* + * @class FeatureGroup + * @aka L.FeatureGroup + * @inherits LayerGroup + * + * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers: + * * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip)) + * * Events are propagated to the `FeatureGroup`, so if the group has an event + * handler, it will handle events from any of the layers. This includes mouse events + * and custom events. + * * Has `layeradd` and `layerremove` events + * + * @example + * + * ```js + * L.featureGroup([marker1, marker2, polyline]) + * .bindPopup('Hello world!') + * .on('click', function() { alert('Clicked on a member of the group!'); }) + * .addTo(map); + * ``` + */ + +var FeatureGroup = LayerGroup.extend({ + + addLayer: function (layer) { + if (this.hasLayer(layer)) { + return this; + } + + layer.addEventParent(this); + + LayerGroup.prototype.addLayer.call(this, layer); + + // @event layeradd: LayerEvent + // Fired when a layer is added to this `FeatureGroup` + return this.fire('layeradd', {layer: layer}); + }, + + removeLayer: function (layer) { + if (!this.hasLayer(layer)) { + return this; + } + if (layer in this._layers) { + layer = this._layers[layer]; + } + + layer.removeEventParent(this); + + LayerGroup.prototype.removeLayer.call(this, layer); + + // @event layerremove: LayerEvent + // Fired when a layer is removed from this `FeatureGroup` + return this.fire('layerremove', {layer: layer}); + }, + + // @method setStyle(style: Path options): this + // Sets the given path options to each layer of the group that has a `setStyle` method. + setStyle: function (style) { + return this.invoke('setStyle', style); + }, + + // @method bringToFront(): this + // Brings the layer group to the top of all other layers + bringToFront: function () { + return this.invoke('bringToFront'); + }, + + // @method bringToBack(): this + // Brings the layer group to the top of all other layers + bringToBack: function () { + return this.invoke('bringToBack'); + }, + + // @method getBounds(): LatLngBounds + // Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children). + getBounds: function () { + var bounds = new LatLngBounds(); + + for (var id in this._layers) { + var layer = this._layers[id]; + bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng()); + } + return bounds; + } +}); + +// @factory L.featureGroup(layers: Layer[]) +// Create a feature group, optionally given an initial set of layers. +var featureGroup = function (layers) { + return new FeatureGroup(layers); }; - - /* - * @namespace PolyUtil - * Various utility functions for polygon geometries. + * @class Icon + * @aka L.Icon + * + * Represents an icon to provide when creating a marker. + * + * @example + * + * ```js + * var myIcon = L.icon({ + * iconUrl: 'my-icon.png', + * iconRetinaUrl: 'my-icon@2x.png', + * iconSize: [38, 95], + * iconAnchor: [22, 94], + * popupAnchor: [-3, -76], + * shadowUrl: 'my-icon-shadow.png', + * shadowRetinaUrl: 'my-icon-shadow@2x.png', + * shadowSize: [68, 95], + * shadowAnchor: [22, 94] + * }); + * + * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map); + * ``` + * + * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default. + * */ -L.PolyUtil = {}; +var Icon = Class.extend({ -/* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[] - * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgeman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)). - * Used by Leaflet to only show polygon points that are on the screen or near, increasing - * performance. Note that polygon points needs different algorithm for clipping - * than polyline, so there's a seperate method for it. - */ -L.PolyUtil.clipPolygon = function (points, bounds, round) { - var clippedPoints, - edges = [1, 4, 2, 8], - i, j, k, - a, b, - len, edge, p, - lu = L.LineUtil; + /* @section + * @aka Icon options + * + * @option iconUrl: String = null + * **(required)** The URL to the icon image (absolute or relative to your script path). + * + * @option iconRetinaUrl: String = null + * The URL to a retina sized version of the icon image (absolute or relative to your + * script path). Used for Retina screen devices. + * + * @option iconSize: Point = null + * Size of the icon image in pixels. + * + * @option iconAnchor: Point = null + * The coordinates of the "tip" of the icon (relative to its top left corner). The icon + * will be aligned so that this point is at the marker's geographical location. Centered + * by default if size is specified, also can be set in CSS with negative margins. + * + * @option popupAnchor: Point = null + * The coordinates of the point from which popups will "open", relative to the icon anchor. + * + * @option shadowUrl: String = null + * The URL to the icon shadow image. If not specified, no shadow image will be created. + * + * @option shadowRetinaUrl: String = null + * + * @option shadowSize: Point = null + * Size of the shadow image in pixels. + * + * @option shadowAnchor: Point = null + * The coordinates of the "tip" of the shadow (relative to its top left corner) (the same + * as iconAnchor if not specified). + * + * @option className: String = '' + * A custom class name to assign to both icon and shadow images. Empty by default. + */ - for (i = 0, len = points.length; i < len; i++) { - points[i]._code = lu._getBitCode(points[i], bounds); - } + initialize: function (options) { + setOptions(this, options); + }, - // for each edge (left, bottom, right, top) - for (k = 0; k < 4; k++) { - edge = edges[k]; - clippedPoints = []; + // @method createIcon(oldIcon?: HTMLElement): HTMLElement + // Called internally when the icon has to be shown, returns a `` HTML element + // styled according to the options. + createIcon: function (oldIcon) { + return this._createIcon('icon', oldIcon); + }, - for (i = 0, len = points.length, j = len - 1; i < len; j = i++) { - a = points[i]; - b = points[j]; + // @method createShadow(oldIcon?: HTMLElement): HTMLElement + // As `createIcon`, but for the shadow beneath it. + createShadow: function (oldIcon) { + return this._createIcon('shadow', oldIcon); + }, - // if a is inside the clip window - if (!(a._code & edge)) { - // if b is outside the clip window (a->b goes out of screen) - if (b._code & edge) { - p = lu._getEdgeIntersection(b, a, edge, bounds, round); - p._code = lu._getBitCode(p, bounds); - clippedPoints.push(p); - } - clippedPoints.push(a); + _createIcon: function (name, oldIcon) { + var src = this._getIconUrl(name); + + if (!src) { + if (name === 'icon') { + throw new Error('iconUrl not set in Icon options (see the docs).'); + } + return null; + } + + var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null); + this._setIconStyles(img, name); + + return img; + }, + + _setIconStyles: function (img, name) { + var options = this.options; + var sizeOption = options[name + 'Size']; + + if (typeof sizeOption === 'number') { + sizeOption = [sizeOption, sizeOption]; + } + + var size = toPoint(sizeOption), + anchor = toPoint(name === 'shadow' && options.shadowAnchor || options.iconAnchor || + size && size.divideBy(2, true)); + + img.className = 'leaflet-marker-' + name + ' ' + (options.className || ''); + + if (anchor) { + img.style.marginLeft = (-anchor.x) + 'px'; + img.style.marginTop = (-anchor.y) + 'px'; + } - // else if b is inside the clip window (a->b enters the screen) - } else if (!(b._code & edge)) { - p = lu._getEdgeIntersection(b, a, edge, bounds, round); - p._code = lu._getBitCode(p, bounds); - clippedPoints.push(p); - } + if (size) { + img.style.width = size.x + 'px'; + img.style.height = size.y + 'px'; } - points = clippedPoints; + }, + + _createImg: function (src, el) { + el = el || document.createElement('img'); + el.src = src; + return el; + }, + + _getIconUrl: function (name) { + return retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url']; } +}); - return points; -}; - - - -/* - * @class Polygon - * @aka L.Polygon - * @inherits Polyline - * - * A class for drawing polygon overlays on a map. Extends `Polyline`. - * - * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points. - * - * - * @example - * - * ```js - * // create a red polygon from an array of LatLng points - * var latlngs = [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]]; - * - * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map); - * - * // zoom the map to the polygon - * map.fitBounds(polygon.getBounds()); - * ``` - * - * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape: - * - * ```js - * var latlngs = [ - * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring - * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole - * ]; - * ``` - * - * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape. - * - * ```js - * var latlngs = [ - * [ // first polygon - * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring - * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole - * ], - * [ // second polygon - * [[41, -111.03],[45, -111.04],[45, -104.05],[41, -104.05]] - * ] - * ]; - * ``` - */ - -L.Polygon = L.Polyline.extend({ - - options: { - fill: true - }, - - isEmpty: function () { - return !this._latlngs.length || !this._latlngs[0].length; - }, - - getCenter: function () { - // throws error when not yet added to map as this center calculation requires projected coordinates - if (!this._map) { - throw new Error('Must add layer to map before using getCenter()'); - } - - var i, j, p1, p2, f, area, x, y, center, - points = this._rings[0], - len = points.length; - - if (!len) { return null; } - - // polygon centroid algorithm; only uses the first ring if there are multiple - - area = x = y = 0; - - for (i = 0, j = len - 1; i < len; j = i++) { - p1 = points[i]; - p2 = points[j]; - - f = p1.y * p2.x - p2.y * p1.x; - x += (p1.x + p2.x) * f; - y += (p1.y + p2.y) * f; - area += f * 3; - } - - if (area === 0) { - // Polygon is so small that all points are on same pixel. - center = points[0]; - } else { - center = [x / area, y / area]; - } - return this._map.layerPointToLatLng(center); - }, - - _convertLatLngs: function (latlngs) { - var result = L.Polyline.prototype._convertLatLngs.call(this, latlngs), - len = result.length; - - // remove last point if it equals first one - if (len >= 2 && result[0] instanceof L.LatLng && result[0].equals(result[len - 1])) { - result.pop(); - } - return result; - }, - - _setLatLngs: function (latlngs) { - L.Polyline.prototype._setLatLngs.call(this, latlngs); - if (L.Polyline._flat(this._latlngs)) { - this._latlngs = [this._latlngs]; - } - }, - - _defaultShape: function () { - return L.Polyline._flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0]; - }, - - _clipPoints: function () { - // polygons need a different clipping algorithm so we redefine that - - var bounds = this._renderer._bounds, - w = this.options.weight, - p = new L.Point(w, w); - - // increase clip padding by stroke width to avoid stroke on clip edges - bounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p)); - - this._parts = []; - if (!this._pxBounds || !this._pxBounds.intersects(bounds)) { - return; - } - - if (this.options.noClip) { - this._parts = this._rings; - return; - } - - for (var i = 0, len = this._rings.length, clipped; i < len; i++) { - clipped = L.PolyUtil.clipPolygon(this._rings[i], bounds, true); - if (clipped.length) { - this._parts.push(clipped); - } - } - }, - - _updatePath: function () { - this._renderer._updatePoly(this, true); - } -}); - - -// @factory L.polygon(latlngs: LatLng[], options?: Polyline options) -L.polygon = function (latlngs, options) { - return new L.Polygon(latlngs, options); -}; - - - -/* - * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object. - */ - -/* - * @class Rectangle - * @aka L.Retangle - * @inherits Polygon - * - * A class for drawing rectangle overlays on a map. Extends `Polygon`. - * - * @example - * - * ```js - * // define rectangle geographical bounds - * var bounds = [[54.559322, -5.767822], [56.1210604, -3.021240]]; - * - * // create an orange rectangle - * L.rectangle(bounds, {color: "#ff7800", weight: 1}).addTo(map); - * - * // zoom the map to the rectangle bounds - * map.fitBounds(bounds); - * ``` - * - */ - - -L.Rectangle = L.Polygon.extend({ - initialize: function (latLngBounds, options) { - L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options); - }, - - // @method setBounds(latLngBounds: LatLngBounds): this - // Redraws the rectangle with the passed bounds. - setBounds: function (latLngBounds) { - return this.setLatLngs(this._boundsToLatLngs(latLngBounds)); - }, - - _boundsToLatLngs: function (latLngBounds) { - latLngBounds = L.latLngBounds(latLngBounds); - return [ - latLngBounds.getSouthWest(), - latLngBounds.getNorthWest(), - latLngBounds.getNorthEast(), - latLngBounds.getSouthEast() - ]; - } -}); - - -// @factory L.rectangle(latLngBounds: LatLngBounds, options?: Polyline options) -L.rectangle = function (latLngBounds, options) { - return new L.Rectangle(latLngBounds, options); -}; - - + +// @factory L.icon(options: Icon options) +// Creates an icon instance with the given options. +function icon(options) { + return new Icon(options); +} /* - * @class CircleMarker - * @aka L.CircleMarker - * @inherits Path + * @miniclass Icon.Default (Icon) + * @aka L.Icon.Default + * @section * - * A circle of a fixed size with radius specified in pixels. Extends `Path`. - */ - -L.CircleMarker = L.Path.extend({ - - // @section - // @aka CircleMarker options - options: { - fill: true, - - // @option radius: Number = 10 - // Radius of the circle marker, in pixels - radius: 10 - }, - - initialize: function (latlng, options) { - L.setOptions(this, options); - this._latlng = L.latLng(latlng); - this._radius = this.options.radius; - }, - - // @method setLatLng(latLng: LatLng): this - // Sets the position of a circle marker to a new location. - setLatLng: function (latlng) { - this._latlng = L.latLng(latlng); - this.redraw(); - return this.fire('move', {latlng: this._latlng}); - }, + * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when + * no icon is specified. Points to the blue marker image distributed with Leaflet + * releases. + * + * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options` + * (which is a set of `Icon options`). + * + * If you want to _completely_ replace the default icon, override the + * `L.Marker.prototype.options.icon` with your own icon instead. + */ - // @method getLatLng(): LatLng - // Returns the current geographical position of the circle marker - getLatLng: function () { - return this._latlng; - }, +var IconDefault = Icon.extend({ - // @method setRadius(radius: Number): this - // Sets the radius of a circle marker. Units are in pixels. - setRadius: function (radius) { - this.options.radius = this._radius = radius; - return this.redraw(); + options: { + iconUrl: 'marker-icon.png', + iconRetinaUrl: 'marker-icon-2x.png', + shadowUrl: 'marker-shadow.png', + iconSize: [25, 41], + iconAnchor: [12, 41], + popupAnchor: [1, -34], + tooltipAnchor: [16, -28], + shadowSize: [41, 41] }, - // @method getRadius(): Number - // Returns the current radius of the circle - getRadius: function () { - return this._radius; - }, + _getIconUrl: function (name) { + if (!IconDefault.imagePath) { // Deprecated, backwards-compatibility only + IconDefault.imagePath = this._detectIconPath(); + } - setStyle : function (options) { - var radius = options && options.radius || this._radius; - L.Path.prototype.setStyle.call(this, options); - this.setRadius(radius); - return this; + // @option imagePath: String + // `Icon.Default` will try to auto-detect the absolute location of the + // blue icon images. If you are placing these images in a non-standard + // way, set this option to point to the right absolute path. + return (this.options.imagePath || IconDefault.imagePath) + Icon.prototype._getIconUrl.call(this, name); }, - _project: function () { - this._point = this._map.latLngToLayerPoint(this._latlng); - this._updateBounds(); - }, + _detectIconPath: function () { + var el = create$1('div', 'leaflet-default-icon-path', document.body); + var path = getStyle(el, 'background-image') || + getStyle(el, 'backgroundImage'); // IE8 - _updateBounds: function () { - var r = this._radius, - r2 = this._radiusY || r, - w = this._clickTolerance(), - p = [r + w, r2 + w]; - this._pxBounds = new L.Bounds(this._point.subtract(p), this._point.add(p)); - }, + document.body.removeChild(el); - _update: function () { - if (this._map) { - this._updatePath(); + if (path === null || path.indexOf('url') !== 0) { + path = ''; + } else { + path = path.replace(/^url\([\"\']?/, '').replace(/marker-icon\.png[\"\']?\)$/, ''); } - }, - - _updatePath: function () { - this._renderer._updateCircle(this); - }, - _empty: function () { - return this._radius && !this._renderer._bounds.intersects(this._pxBounds); + return path; } }); - -// @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options) -// Instantiates a circle marker object given a geographical point, and an optional options object. -L.circleMarker = function (latlng, options) { - return new L.CircleMarker(latlng, options); -}; - +/* + * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable. + */ -/* - * @class Circle - * @aka L.Circle - * @inherits CircleMarker - * - * A class for drawing circle overlays on a map. Extends `CircleMarker`. - * - * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion). +/* @namespace Marker + * @section Interaction handlers * - * @example + * Interaction handlers are properties of a marker instance that allow you to control interaction behavior in runtime, enabling or disabling certain features such as dragging (see `Handler` methods). Example: * * ```js - * L.circle([50.5, 30.5], {radius: 200}).addTo(map); + * marker.dragging.disable(); * ``` + * + * @property dragging: Handler + * Marker dragging handler (by both mouse and touch). Only valid when the marker is on the map (Otherwise set [`marker.options.draggable`](#marker-draggable)). */ -L.Circle = L.CircleMarker.extend({ +var MarkerDrag = Handler.extend({ + initialize: function (marker) { + this._marker = marker; + }, - initialize: function (latlng, options, legacyOptions) { - if (typeof options === 'number') { - // Backwards compatibility with 0.7.x factory (latlng, radius, options?) - options = L.extend({}, legacyOptions, {radius: options}); + addHooks: function () { + var icon = this._marker._icon; + + if (!this._draggable) { + this._draggable = new Draggable(icon, icon, true); } - L.setOptions(this, options); - this._latlng = L.latLng(latlng); - if (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); } + this._draggable.on({ + dragstart: this._onDragStart, + drag: this._onDrag, + dragend: this._onDragEnd + }, this).enable(); - // @section - // @aka Circle options - // @option radius: Number; Radius of the circle, in meters. - this._mRadius = this.options.radius; + addClass(icon, 'leaflet-marker-draggable'); }, - // @method setRadius(radius: Number): this - // Sets the radius of a circle. Units are in meters. - setRadius: function (radius) { - this._mRadius = radius; - return this.redraw(); - }, + removeHooks: function () { + this._draggable.off({ + dragstart: this._onDragStart, + drag: this._onDrag, + dragend: this._onDragEnd + }, this).disable(); - // @method getRadius(): Number - // Returns the current radius of a circle. Units are in meters. - getRadius: function () { - return this._mRadius; + if (this._marker._icon) { + removeClass(this._marker._icon, 'leaflet-marker-draggable'); + } }, - // @method getBounds(): LatLngBounds - // Returns the `LatLngBounds` of the path. - getBounds: function () { - var half = [this._radius, this._radiusY || this._radius]; - - return new L.LatLngBounds( - this._map.layerPointToLatLng(this._point.subtract(half)), - this._map.layerPointToLatLng(this._point.add(half))); + moved: function () { + return this._draggable && this._draggable._moved; }, - setStyle: L.Path.prototype.setStyle, + _onDragStart: function () { + // @section Dragging events + // @event dragstart: Event + // Fired when the user starts dragging the marker. - _project: function () { + // @event movestart: Event + // Fired when the marker starts moving (because of dragging). - var lng = this._latlng.lng, - lat = this._latlng.lat, - map = this._map, - crs = map.options.crs; + this._oldLatLng = this._marker.getLatLng(); + this._marker + .closePopup() + .fire('movestart') + .fire('dragstart'); + }, - if (crs.distance === L.CRS.Earth.distance) { - var d = Math.PI / 180, - latR = (this._mRadius / L.CRS.Earth.R) / d, - top = map.project([lat + latR, lng]), - bottom = map.project([lat - latR, lng]), - p = top.add(bottom).divideBy(2), - lat2 = map.unproject(p).lat, - lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) / - (Math.cos(lat * d) * Math.cos(lat2 * d))) / d; + _onDrag: function (e) { + var marker = this._marker, + shadow = marker._shadow, + iconPos = getPosition(marker._icon), + latlng = marker._map.layerPointToLatLng(iconPos); - if (isNaN(lngR) || lngR === 0) { - lngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425 - } + // update shadow position + if (shadow) { + setPosition(shadow, iconPos); + } - this._point = p.subtract(map.getPixelOrigin()); - this._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1); - this._radiusY = Math.max(Math.round(p.y - top.y), 1); + marker._latlng = latlng; + e.latlng = latlng; + e.oldLatLng = this._oldLatLng; - } else { - var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0])); + // @event drag: Event + // Fired repeatedly while the user drags the marker. + marker + .fire('move', e) + .fire('drag', e); + }, - this._point = map.latLngToLayerPoint(this._latlng); - this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x; - } + _onDragEnd: function (e) { + // @event dragend: DragEndEvent + // Fired when the user stops dragging the marker. - this._updateBounds(); + // @event moveend: Event + // Fired when the marker stops moving (because of dragging). + delete this._oldLatLng; + this._marker + .fire('moveend') + .fire('dragend', e); } }); -// @factory L.circle(latlng: LatLng, options?: Circle options) -// Instantiates a circle object given a geographical point, and an options object -// which contains the circle radius. -// @alternative -// @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options) -// Obsolete way of instantiating a circle, for compatibility with 0.7.x code. -// Do not use in new applications or plugins. -L.circle = function (latlng, options, legacyOptions) { - return new L.Circle(latlng, options, legacyOptions); -}; - - +/* + * @class Marker + * @inherits Interactive layer + * @aka L.Marker + * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`. + * + * @example + * + * ```js + * L.marker([50.5, 30.5]).addTo(map); + * ``` + */ + +var Marker = Layer.extend({ + + // @section + // @aka Marker options + options: { + // @option icon: Icon = * + // Icon instance to use for rendering the marker. + // See [Icon documentation](#L.Icon) for details on how to customize the marker icon. + // If not specified, a common instance of `L.Icon.Default` is used. + icon: new IconDefault(), + + // Option inherited from "Interactive layer" abstract class + interactive: true, + + // @option draggable: Boolean = false + // Whether the marker is draggable with mouse/touch or not. + draggable: false, + + // @option keyboard: Boolean = true + // Whether the marker can be tabbed to with a keyboard and clicked by pressing enter. + keyboard: true, + + // @option title: String = '' + // Text for the browser tooltip that appear on marker hover (no tooltip by default). + title: '', + + // @option alt: String = '' + // Text for the `alt` attribute of the icon image (useful for accessibility). + alt: '', + + // @option zIndexOffset: Number = 0 + // By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively). + zIndexOffset: 0, + + // @option opacity: Number = 1.0 + // The opacity of the marker. + opacity: 1, + + // @option riseOnHover: Boolean = false + // If `true`, the marker will get on top of others when you hover the mouse over it. + riseOnHover: false, + + // @option riseOffset: Number = 250 + // The z-index offset used for the `riseOnHover` feature. + riseOffset: 250, + + // @option pane: String = 'markerPane' + // `Map pane` where the markers icon will be added. + pane: 'markerPane', + + // @option bubblingMouseEvents: Boolean = false + // When `true`, a mouse event on this marker will trigger the same event on the map + // (unless [`L.DomEvent.stopPropagation`](#domevent-stoppropagation) is used). + bubblingMouseEvents: false + }, + + /* @section + * + * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods: + */ + + initialize: function (latlng, options) { + setOptions(this, options); + this._latlng = toLatLng(latlng); + }, + + onAdd: function (map) { + this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation; + + if (this._zoomAnimated) { + map.on('zoomanim', this._animateZoom, this); + } + + this._initIcon(); + this.update(); + }, + + onRemove: function (map) { + if (this.dragging && this.dragging.enabled()) { + this.options.draggable = true; + this.dragging.removeHooks(); + } + delete this.dragging; + + if (this._zoomAnimated) { + map.off('zoomanim', this._animateZoom, this); + } + + this._removeIcon(); + this._removeShadow(); + }, + + getEvents: function () { + return { + zoom: this.update, + viewreset: this.update + }; + }, + + // @method getLatLng: LatLng + // Returns the current geographical position of the marker. + getLatLng: function () { + return this._latlng; + }, + + // @method setLatLng(latlng: LatLng): this + // Changes the marker position to the given point. + setLatLng: function (latlng) { + var oldLatLng = this._latlng; + this._latlng = toLatLng(latlng); + this.update(); + + // @event move: Event + // Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`. + return this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng}); + }, + + // @method setZIndexOffset(offset: Number): this + // Changes the [zIndex offset](#marker-zindexoffset) of the marker. + setZIndexOffset: function (offset) { + this.options.zIndexOffset = offset; + return this.update(); + }, + + // @method setIcon(icon: Icon): this + // Changes the marker icon. + setIcon: function (icon) { + + this.options.icon = icon; + + if (this._map) { + this._initIcon(); + this.update(); + } + + if (this._popup) { + this.bindPopup(this._popup, this._popup.options); + } + + return this; + }, + + getElement: function () { + return this._icon; + }, + + update: function () { + + if (this._icon) { + var pos = this._map.latLngToLayerPoint(this._latlng).round(); + this._setPos(pos); + } + + return this; + }, + + _initIcon: function () { + var options = this.options, + classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide'); + + var icon = options.icon.createIcon(this._icon), + addIcon = false; + + // if we're not reusing the icon, remove the old one and init new one + if (icon !== this._icon) { + if (this._icon) { + this._removeIcon(); + } + addIcon = true; + + if (options.title) { + icon.title = options.title; + } + if (options.alt) { + icon.alt = options.alt; + } + } + + addClass(icon, classToAdd); + + if (options.keyboard) { + icon.tabIndex = '0'; + } + + this._icon = icon; + + if (options.riseOnHover) { + this.on({ + mouseover: this._bringToFront, + mouseout: this._resetZIndex + }); + } + + var newShadow = options.icon.createShadow(this._shadow), + addShadow = false; + + if (newShadow !== this._shadow) { + this._removeShadow(); + addShadow = true; + } + + if (newShadow) { + addClass(newShadow, classToAdd); + newShadow.alt = ''; + } + this._shadow = newShadow; + + + if (options.opacity < 1) { + this._updateOpacity(); + } + + + if (addIcon) { + this.getPane().appendChild(this._icon); + } + this._initInteraction(); + if (newShadow && addShadow) { + this.getPane('shadowPane').appendChild(this._shadow); + } + }, + + _removeIcon: function () { + if (this.options.riseOnHover) { + this.off({ + mouseover: this._bringToFront, + mouseout: this._resetZIndex + }); + } + + remove(this._icon); + this.removeInteractiveTarget(this._icon); + + this._icon = null; + }, + + _removeShadow: function () { + if (this._shadow) { + remove(this._shadow); + } + this._shadow = null; + }, + + _setPos: function (pos) { + setPosition(this._icon, pos); + + if (this._shadow) { + setPosition(this._shadow, pos); + } + + this._zIndex = pos.y + this.options.zIndexOffset; + + this._resetZIndex(); + }, + + _updateZIndex: function (offset) { + this._icon.style.zIndex = this._zIndex + offset; + }, + + _animateZoom: function (opt) { + var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round(); + + this._setPos(pos); + }, + + _initInteraction: function () { + + if (!this.options.interactive) { return; } + + addClass(this._icon, 'leaflet-interactive'); + + this.addInteractiveTarget(this._icon); + + if (MarkerDrag) { + var draggable = this.options.draggable; + if (this.dragging) { + draggable = this.dragging.enabled(); + this.dragging.disable(); + } + + this.dragging = new MarkerDrag(this); + + if (draggable) { + this.dragging.enable(); + } + } + }, + + // @method setOpacity(opacity: Number): this + // Changes the opacity of the marker. + setOpacity: function (opacity) { + this.options.opacity = opacity; + if (this._map) { + this._updateOpacity(); + } + + return this; + }, + + _updateOpacity: function () { + var opacity = this.options.opacity; + + setOpacity(this._icon, opacity); + + if (this._shadow) { + setOpacity(this._shadow, opacity); + } + }, + + _bringToFront: function () { + this._updateZIndex(this.options.riseOffset); + }, + + _resetZIndex: function () { + this._updateZIndex(0); + }, + + _getPopupAnchor: function () { + return this.options.icon.options.popupAnchor || [0, 0]; + }, + + _getTooltipAnchor: function () { + return this.options.icon.options.tooltipAnchor || [0, 0]; + } +}); + + +// factory L.marker(latlng: LatLng, options? : Marker options) + +// @factory L.marker(latlng: LatLng, options? : Marker options) +// Instantiates a Marker object given a geographical point and optionally an options object. +function marker(latlng, options) { + return new Marker(latlng, options); +} /* - * @class SVG - * @inherits Renderer - * @aka L.SVG - * - * Allows vector layers to be displayed with [SVG](https://developer.mozilla.org/docs/Web/SVG). - * Inherits `Renderer`. - * - * Due to [technical limitations](http://caniuse.com/#search=svg), SVG is not - * available in all web browsers, notably Android 2.x and 3.x. - * - * Although SVG is not available on IE7 and IE8, these browsers support - * [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language) - * (a now deprecated technology), and the SVG renderer will fall back to VML in - * this case. - * - * @example - * - * Use SVG by default for all paths in the map: - * - * ```js - * var map = L.map('map', { - * renderer: L.svg() - * }); - * ``` - * - * Use a SVG renderer with extra padding for specific vector geometries: + * @class Path + * @aka L.Path + * @inherits Interactive layer * - * ```js - * var map = L.map('map'); - * var myRenderer = L.svg({ padding: 0.5 }); - * var line = L.polyline( coordinates, { renderer: myRenderer } ); - * var circle = L.circle( center, { renderer: myRenderer } ); - * ``` + * An abstract class that contains options and constants shared between vector + * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`. */ -L.SVG = L.Renderer.extend({ - - getEvents: function () { - var events = L.Renderer.prototype.getEvents.call(this); - events.zoomstart = this._onZoomStart; - return events; - }, +var Path = Layer.extend({ - _initContainer: function () { - this._container = L.SVG.create('svg'); + // @section + // @aka Path options + options: { + // @option stroke: Boolean = true + // Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles. + stroke: true, - // makes it possible to click through svg root; we'll reset it back in individual paths - this._container.setAttribute('pointer-events', 'none'); + // @option color: String = '#3388ff' + // Stroke color + color: '#3388ff', - this._rootGroup = L.SVG.create('g'); - this._container.appendChild(this._rootGroup); - }, + // @option weight: Number = 3 + // Stroke width in pixels + weight: 3, - _onZoomStart: function () { - // Drag-then-pinch interactions might mess up the center and zoom. - // In this case, the easiest way to prevent this is re-do the renderer - // bounds and padding when the zooming starts. - this._update(); - }, + // @option opacity: Number = 1.0 + // Stroke opacity + opacity: 1, - _update: function () { - if (this._map._animatingZoom && this._bounds) { return; } + // @option lineCap: String= 'round' + // A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke. + lineCap: 'round', - L.Renderer.prototype._update.call(this); + // @option lineJoin: String = 'round' + // A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke. + lineJoin: 'round', - var b = this._bounds, - size = b.getSize(), - container = this._container; + // @option dashArray: String = null + // A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility). + dashArray: null, - // set size of svg-container if changed - if (!this._svgSize || !this._svgSize.equals(size)) { - this._svgSize = size; - container.setAttribute('width', size.x); - container.setAttribute('height', size.y); - } + // @option dashOffset: String = null + // A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility). + dashOffset: null, - // movement: update container viewBox so that we don't have to change coordinates of individual layers - L.DomUtil.setPosition(container, b.min); - container.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' ')); + // @option fill: Boolean = depends + // Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles. + fill: false, - this.fire('update'); - }, + // @option fillColor: String = * + // Fill color. Defaults to the value of the [`color`](#path-color) option + fillColor: null, - // methods below are called by vector layers implementations + // @option fillOpacity: Number = 0.2 + // Fill opacity. + fillOpacity: 0.2, - _initPath: function (layer) { - var path = layer._path = L.SVG.create('path'); + // @option fillRule: String = 'evenodd' + // A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined. + fillRule: 'evenodd', - // @namespace Path - // @option className: String = null - // Custom class name set on an element. Only for SVG renderer. - if (layer.options.className) { - L.DomUtil.addClass(path, layer.options.className); - } + // className: '', - if (layer.options.interactive) { - L.DomUtil.addClass(path, 'leaflet-interactive'); - } + // Option inherited from "Interactive layer" abstract class + interactive: true, - this._updateStyle(layer); - this._layers[L.stamp(layer)] = layer; + // @option bubblingMouseEvents: Boolean = true + // When `true`, a mouse event on this path will trigger the same event on the map + // (unless [`L.DomEvent.stopPropagation`](#domevent-stoppropagation) is used). + bubblingMouseEvents: true }, - _addPath: function (layer) { - this._rootGroup.appendChild(layer._path); - layer.addInteractiveTarget(layer._path); + beforeAdd: function (map) { + // Renderer is set here because we need to call renderer.getEvents + // before this.getEvents. + this._renderer = map.getRenderer(this); }, - _removePath: function (layer) { - L.DomUtil.remove(layer._path); - layer.removeInteractiveTarget(layer._path); - delete this._layers[L.stamp(layer)]; + onAdd: function () { + this._renderer._initPath(this); + this._reset(); + this._renderer._addPath(this); }, - _updatePath: function (layer) { - layer._project(); - layer._update(); + onRemove: function () { + this._renderer._removePath(this); }, - _updateStyle: function (layer) { - var path = layer._path, - options = layer.options; - - if (!path) { return; } - - if (options.stroke) { - path.setAttribute('stroke', options.color); - path.setAttribute('stroke-opacity', options.opacity); - path.setAttribute('stroke-width', options.weight); - path.setAttribute('stroke-linecap', options.lineCap); - path.setAttribute('stroke-linejoin', options.lineJoin); - - if (options.dashArray) { - path.setAttribute('stroke-dasharray', options.dashArray); - } else { - path.removeAttribute('stroke-dasharray'); - } - - if (options.dashOffset) { - path.setAttribute('stroke-dashoffset', options.dashOffset); - } else { - path.removeAttribute('stroke-dashoffset'); - } - } else { - path.setAttribute('stroke', 'none'); - } - - if (options.fill) { - path.setAttribute('fill', options.fillColor || options.color); - path.setAttribute('fill-opacity', options.fillOpacity); - path.setAttribute('fill-rule', options.fillRule || 'evenodd'); - } else { - path.setAttribute('fill', 'none'); + // @method redraw(): this + // Redraws the layer. Sometimes useful after you changed the coordinates that the path uses. + redraw: function () { + if (this._map) { + this._renderer._updatePath(this); } + return this; }, - _updatePoly: function (layer, closed) { - this._setPath(layer, L.SVG.pointsToPath(layer._parts, closed)); + // @method setStyle(style: Path options): this + // Changes the appearance of a Path based on the options in the `Path options` object. + setStyle: function (style) { + setOptions(this, style); + if (this._renderer) { + this._renderer._updateStyle(this); + } + return this; }, - _updateCircle: function (layer) { - var p = layer._point, - r = layer._radius, - r2 = layer._radiusY || r, - arc = 'a' + r + ',' + r2 + ' 0 1,0 '; - - // drawing a circle with two half-arcs - var d = layer._empty() ? 'M0 0' : - 'M' + (p.x - r) + ',' + p.y + - arc + (r * 2) + ',0 ' + - arc + (-r * 2) + ',0 '; - - this._setPath(layer, d); + // @method bringToFront(): this + // Brings the layer to the top of all path layers. + bringToFront: function () { + if (this._renderer) { + this._renderer._bringToFront(this); + } + return this; }, - _setPath: function (layer, path) { - layer._path.setAttribute('d', path); + // @method bringToBack(): this + // Brings the layer to the bottom of all path layers. + bringToBack: function () { + if (this._renderer) { + this._renderer._bringToBack(this); + } + return this; }, - // SVG does not have the concept of zIndex so we resort to changing the DOM order of elements - _bringToFront: function (layer) { - L.DomUtil.toFront(layer._path); + getElement: function () { + return this._path; }, - _bringToBack: function (layer) { - L.DomUtil.toBack(layer._path); - } -}); - - -// @namespace SVG; @section -// There are several static functions which can be called without instantiating L.SVG: -L.extend(L.SVG, { - // @function create(name: String): SVGElement - // Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement), - // corresponding to the class name passed. For example, using 'line' will return - // an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement). - create: function (name) { - return document.createElementNS('http://www.w3.org/2000/svg', name); - }, - - // @function pointsToPath(rings: Point[], closed: Boolean): String - // Generates a SVG path string for multiple rings, with each ring turning - // into "M..L..L.." instructions - pointsToPath: function (rings, closed) { - var str = '', - i, j, len, len2, points, p; - - for (i = 0, len = rings.length; i < len; i++) { - points = rings[i]; - - for (j = 0, len2 = points.length; j < len2; j++) { - p = points[j]; - str += (j ? 'L' : 'M') + p.x + ' ' + p.y; - } - - // closes the ring for polygons; "x" is VML syntax - str += closed ? (L.Browser.svg ? 'z' : 'x') : ''; - } - - // SVG complains about empty path strings - return str || 'M0 0'; - } -}); - -// @namespace Browser; @property svg: Boolean -// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG). -L.Browser.svg = !!(document.createElementNS && L.SVG.create('svg').createSVGRect); - - -// @namespace SVG -// @factory L.svg(options?: Renderer options) -// Creates a SVG renderer with the given options. -L.svg = function (options) { - return L.Browser.svg || L.Browser.vml ? new L.SVG(options) : null; -}; - - + _reset: function () { + // defined in child classes + this._project(); + this._update(); + }, -/* - * Thanks to Dmitry Baranovsky and his Raphael library for inspiration! - */ + _clickTolerance: function () { + // used when doing hit detection for Canvas layers + return (this.options.stroke ? this.options.weight / 2 : 0) + (touch ? 10 : 0); + } +}); /* - * @class SVG - * - * Although SVG is not available on IE7 and IE8, these browsers support [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language), and the SVG renderer will fall back to VML in this case. + * @class CircleMarker + * @aka L.CircleMarker + * @inherits Path * - * VML was deprecated in 2012, which means VML functionality exists only for backwards compatibility - * with old versions of Internet Explorer. + * A circle of a fixed size with radius specified in pixels. Extends `Path`. */ -// @namespace Browser; @property vml: Boolean -// `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language). -L.Browser.vml = !L.Browser.svg && (function () { - try { - var div = document.createElement('div'); - div.innerHTML = ''; - - var shape = div.firstChild; - shape.style.behavior = 'url(#default#VML)'; - - return shape && (typeof shape.adj === 'object'); - - } catch (e) { - return false; - } -}()); +var CircleMarker = Path.extend({ -// redefine some SVG methods to handle VML syntax which is similar but with some differences -L.SVG.include(!L.Browser.vml ? {} : { + // @section + // @aka CircleMarker options + options: { + fill: true, - _initContainer: function () { - this._container = L.DomUtil.create('div', 'leaflet-vml-container'); + // @option radius: Number = 10 + // Radius of the circle marker, in pixels + radius: 10 }, - _update: function () { - if (this._map._animatingZoom) { return; } - L.Renderer.prototype._update.call(this); - this.fire('update'); + initialize: function (latlng, options) { + setOptions(this, options); + this._latlng = toLatLng(latlng); + this._radius = this.options.radius; }, - _initPath: function (layer) { - var container = layer._container = L.SVG.create('shape'); - - L.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || '')); - - container.coordsize = '1 1'; - - layer._path = L.SVG.create('path'); - container.appendChild(layer._path); - - this._updateStyle(layer); - this._layers[L.stamp(layer)] = layer; + // @method setLatLng(latLng: LatLng): this + // Sets the position of a circle marker to a new location. + setLatLng: function (latlng) { + this._latlng = toLatLng(latlng); + this.redraw(); + return this.fire('move', {latlng: this._latlng}); }, - _addPath: function (layer) { - var container = layer._container; - this._container.appendChild(container); - - if (layer.options.interactive) { - layer.addInteractiveTarget(container); - } + // @method getLatLng(): LatLng + // Returns the current geographical position of the circle marker + getLatLng: function () { + return this._latlng; }, - _removePath: function (layer) { - var container = layer._container; - L.DomUtil.remove(container); - layer.removeInteractiveTarget(container); - delete this._layers[L.stamp(layer)]; + // @method setRadius(radius: Number): this + // Sets the radius of a circle marker. Units are in pixels. + setRadius: function (radius) { + this.options.radius = this._radius = radius; + return this.redraw(); }, - _updateStyle: function (layer) { - var stroke = layer._stroke, - fill = layer._fill, - options = layer.options, - container = layer._container; - - container.stroked = !!options.stroke; - container.filled = !!options.fill; - - if (options.stroke) { - if (!stroke) { - stroke = layer._stroke = L.SVG.create('stroke'); - } - container.appendChild(stroke); - stroke.weight = options.weight + 'px'; - stroke.color = options.color; - stroke.opacity = options.opacity; - - if (options.dashArray) { - stroke.dashStyle = L.Util.isArray(options.dashArray) ? - options.dashArray.join(' ') : - options.dashArray.replace(/( *, *)/g, ' '); - } else { - stroke.dashStyle = ''; - } - stroke.endcap = options.lineCap.replace('butt', 'flat'); - stroke.joinstyle = options.lineJoin; - - } else if (stroke) { - container.removeChild(stroke); - layer._stroke = null; - } + // @method getRadius(): Number + // Returns the current radius of the circle + getRadius: function () { + return this._radius; + }, - if (options.fill) { - if (!fill) { - fill = layer._fill = L.SVG.create('fill'); - } - container.appendChild(fill); - fill.color = options.fillColor || options.color; - fill.opacity = options.fillOpacity; + setStyle : function (options) { + var radius = options && options.radius || this._radius; + Path.prototype.setStyle.call(this, options); + this.setRadius(radius); + return this; + }, - } else if (fill) { - container.removeChild(fill); - layer._fill = null; - } + _project: function () { + this._point = this._map.latLngToLayerPoint(this._latlng); + this._updateBounds(); }, - _updateCircle: function (layer) { - var p = layer._point.round(), - r = Math.round(layer._radius), - r2 = Math.round(layer._radiusY || r); + _updateBounds: function () { + var r = this._radius, + r2 = this._radiusY || r, + w = this._clickTolerance(), + p = [r + w, r2 + w]; + this._pxBounds = new Bounds(this._point.subtract(p), this._point.add(p)); + }, - this._setPath(layer, layer._empty() ? 'M0 0' : - 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360)); + _update: function () { + if (this._map) { + this._updatePath(); + } }, - _setPath: function (layer, path) { - layer._path.v = path; + _updatePath: function () { + this._renderer._updateCircle(this); }, - _bringToFront: function (layer) { - L.DomUtil.toFront(layer._container); + _empty: function () { + return this._radius && !this._renderer._bounds.intersects(this._pxBounds); }, - _bringToBack: function (layer) { - L.DomUtil.toBack(layer._container); + // Needed by the `Canvas` renderer for interactivity + _containsPoint: function (p) { + return p.distanceTo(this._point) <= this._radius + this._clickTolerance(); } }); -if (L.Browser.vml) { - L.SVG.create = (function () { - try { - document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml'); - return function (name) { - return document.createElement(''); - }; - } catch (e) { - return function (name) { - return document.createElement('<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">'); - }; - } - })(); -} - +// @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options) +// Instantiates a circle marker object given a geographical point, and an optional options object. +function circleMarker(latlng, options) { + return new CircleMarker(latlng, options); +} /* - * @class Canvas - * @inherits Renderer - * @aka L.Canvas + * @class Circle + * @aka L.Circle + * @inherits CircleMarker * - * Allows vector layers to be displayed with [``](https://developer.mozilla.org/docs/Web/API/Canvas_API). - * Inherits `Renderer`. + * A class for drawing circle overlays on a map. Extends `CircleMarker`. * - * Due to [technical limitations](http://caniuse.com/#search=canvas), Canvas is not - * available in all web browsers, notably IE8, and overlapping geometries might - * not display properly in some edge cases. + * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion). * * @example * - * Use Canvas by default for all paths in the map: - * - * ```js - * var map = L.map('map', { - * renderer: L.canvas() - * }); - * ``` - * - * Use a Canvas renderer with extra padding for specific vector geometries: - * * ```js - * var map = L.map('map'); - * var myRenderer = L.canvas({ padding: 0.5 }); - * var line = L.polyline( coordinates, { renderer: myRenderer } ); - * var circle = L.circle( center, { renderer: myRenderer } ); + * L.circle([50.5, 30.5], {radius: 200}).addTo(map); * ``` */ -L.Canvas = L.Renderer.extend({ - getEvents: function () { - var events = L.Renderer.prototype.getEvents.call(this); - events.viewprereset = this._onViewPreReset; - return events; - }, +var Circle = CircleMarker.extend({ - _onViewPreReset: function () { - // Set a flag so that a viewprereset+moveend+viewreset only updates&redraws once - this._postponeUpdatePaths = true; - }, + initialize: function (latlng, options, legacyOptions) { + if (typeof options === 'number') { + // Backwards compatibility with 0.7.x factory (latlng, radius, options?) + options = extend({}, legacyOptions, {radius: options}); + } + setOptions(this, options); + this._latlng = toLatLng(latlng); - onAdd: function () { - L.Renderer.prototype.onAdd.call(this); + if (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); } - // Redraw vectors since canvas is cleared upon removal, - // in case of removing the renderer itself from the map. - this._draw(); + // @section + // @aka Circle options + // @option radius: Number; Radius of the circle, in meters. + this._mRadius = this.options.radius; }, - _initContainer: function () { - var container = this._container = document.createElement('canvas'); - - L.DomEvent - .on(container, 'mousemove', L.Util.throttle(this._onMouseMove, 32, this), this) - .on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this) - .on(container, 'mouseout', this._handleMouseOut, this); + // @method setRadius(radius: Number): this + // Sets the radius of a circle. Units are in meters. + setRadius: function (radius) { + this._mRadius = radius; + return this.redraw(); + }, - this._ctx = container.getContext('2d'); + // @method getRadius(): Number + // Returns the current radius of a circle. Units are in meters. + getRadius: function () { + return this._mRadius; }, - _updatePaths: function () { - if (this._postponeUpdatePaths) { return; } + // @method getBounds(): LatLngBounds + // Returns the `LatLngBounds` of the path. + getBounds: function () { + var half = [this._radius, this._radiusY || this._radius]; - var layer; - this._redrawBounds = null; - for (var id in this._layers) { - layer = this._layers[id]; - layer._update(); - } - this._redraw(); + return new LatLngBounds( + this._map.layerPointToLatLng(this._point.subtract(half)), + this._map.layerPointToLatLng(this._point.add(half))); }, - _update: function () { - if (this._map._animatingZoom && this._bounds) { return; } + setStyle: Path.prototype.setStyle, - this._drawnLayers = {}; + _project: function () { + + var lng = this._latlng.lng, + lat = this._latlng.lat, + map = this._map, + crs = map.options.crs; - L.Renderer.prototype._update.call(this); + if (crs.distance === Earth.distance) { + var d = Math.PI / 180, + latR = (this._mRadius / Earth.R) / d, + top = map.project([lat + latR, lng]), + bottom = map.project([lat - latR, lng]), + p = top.add(bottom).divideBy(2), + lat2 = map.unproject(p).lat, + lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) / + (Math.cos(lat * d) * Math.cos(lat2 * d))) / d; - var b = this._bounds, - container = this._container, - size = b.getSize(), - m = L.Browser.retina ? 2 : 1; + if (isNaN(lngR) || lngR === 0) { + lngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425 + } - L.DomUtil.setPosition(container, b.min); + this._point = p.subtract(map.getPixelOrigin()); + this._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1); + this._radiusY = Math.max(Math.round(p.y - top.y), 1); - // set canvas size (also clearing it); use double size on retina - container.width = m * size.x; - container.height = m * size.y; - container.style.width = size.x + 'px'; - container.style.height = size.y + 'px'; + } else { + var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0])); - if (L.Browser.retina) { - this._ctx.scale(2, 2); + this._point = map.latLngToLayerPoint(this._latlng); + this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x; } - // translate so we use the same path coordinates after canvas element moves - this._ctx.translate(-b.min.x, -b.min.y); + this._updateBounds(); + } +}); - // Tell paths to redraw themselves - this.fire('update'); - }, +// @factory L.circle(latlng: LatLng, options?: Circle options) +// Instantiates a circle object given a geographical point, and an options object +// which contains the circle radius. +// @alternative +// @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options) +// Obsolete way of instantiating a circle, for compatibility with 0.7.x code. +// Do not use in new applications or plugins. +function circle(latlng, options, legacyOptions) { + return new Circle(latlng, options, legacyOptions); +} - _reset: function () { - L.Renderer.prototype._reset.call(this); +/* + * @class Polyline + * @aka L.Polyline + * @inherits Path + * + * A class for drawing polyline overlays on a map. Extends `Path`. + * + * @example + * + * ```js + * // create a red polyline from an array of LatLng points + * var latlngs = [ + * [45.51, -122.68], + * [37.77, -122.43], + * [34.04, -118.2] + * ]; + * + * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map); + * + * // zoom the map to the polyline + * map.fitBounds(polyline.getBounds()); + * ``` + * + * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape: + * + * ```js + * // create a red polyline from an array of arrays of LatLng points + * var latlngs = [ + * [[45.51, -122.68], + * [37.77, -122.43], + * [34.04, -118.2]], + * [[40.78, -73.91], + * [41.83, -87.62], + * [32.76, -96.72]] + * ]; + * ``` + */ - if (this._postponeUpdatePaths) { - this._postponeUpdatePaths = false; - this._updatePaths(); - } - }, - _initPath: function (layer) { - this._updateDashArray(layer); - this._layers[L.stamp(layer)] = layer; +var Polyline = Path.extend({ - var order = layer._order = { - layer: layer, - prev: this._drawLast, - next: null - }; - if (this._drawLast) { this._drawLast.next = order; } - this._drawLast = order; - this._drawFirst = this._drawFirst || this._drawLast; + // @section + // @aka Polyline options + options: { + // @option smoothFactor: Number = 1.0 + // How much to simplify the polyline on each zoom level. More means + // better performance and smoother look, and less means more accurate representation. + smoothFactor: 1.0, + + // @option noClip: Boolean = false + // Disable polyline clipping. + noClip: false }, - _addPath: function (layer) { - this._requestRedraw(layer); + initialize: function (latlngs, options) { + setOptions(this, options); + this._setLatLngs(latlngs); }, - _removePath: function (layer) { - var order = layer._order; - var next = order.next; - var prev = order.prev; + // @method getLatLngs(): LatLng[] + // Returns an array of the points in the path, or nested arrays of points in case of multi-polyline. + getLatLngs: function () { + return this._latlngs; + }, - if (next) { - next.prev = prev; - } else { - this._drawLast = prev; - } - if (prev) { - prev.next = next; - } else { - this._drawFirst = next; - } + // @method setLatLngs(latlngs: LatLng[]): this + // Replaces all the points in the polyline with the given array of geographical points. + setLatLngs: function (latlngs) { + this._setLatLngs(latlngs); + return this.redraw(); + }, - delete layer._order; + // @method isEmpty(): Boolean + // Returns `true` if the Polyline has no LatLngs. + isEmpty: function () { + return !this._latlngs.length; + }, - delete this._layers[L.stamp(layer)]; + closestLayerPoint: function (p) { + var minDistance = Infinity, + minPoint = null, + closest = _sqClosestPointOnSegment, + p1, p2; - this._requestRedraw(layer); - }, + for (var j = 0, jLen = this._parts.length; j < jLen; j++) { + var points = this._parts[j]; - _updatePath: function (layer) { - // Redraw the union of the layer's old pixel - // bounds and the new pixel bounds. - this._extendRedrawBounds(layer); - layer._project(); - layer._update(); - // The redraw will extend the redraw bounds - // with the new pixel bounds. - this._requestRedraw(layer); - }, + for (var i = 1, len = points.length; i < len; i++) { + p1 = points[i - 1]; + p2 = points[i]; - _updateStyle: function (layer) { - this._updateDashArray(layer); - this._requestRedraw(layer); - }, + var sqDist = closest(p, p1, p2, true); - _updateDashArray: function (layer) { - if (layer.options.dashArray) { - var parts = layer.options.dashArray.split(','), - dashArray = [], - i; - for (i = 0; i < parts.length; i++) { - dashArray.push(Number(parts[i])); + if (sqDist < minDistance) { + minDistance = sqDist; + minPoint = closest(p, p1, p2); + } } - layer.options._dashArray = dashArray; } + if (minPoint) { + minPoint.distance = Math.sqrt(minDistance); + } + return minPoint; }, - _requestRedraw: function (layer) { - if (!this._map) { return; } + // @method getCenter(): LatLng + // Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline. + getCenter: function () { + // throws error when not yet added to map as this center calculation requires projected coordinates + if (!this._map) { + throw new Error('Must add layer to map before using getCenter()'); + } - this._extendRedrawBounds(layer); - this._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this); - }, + var i, halfDist, segDist, dist, p1, p2, ratio, + points = this._rings[0], + len = points.length; - _extendRedrawBounds: function (layer) { - var padding = (layer.options.weight || 0) + 1; - this._redrawBounds = this._redrawBounds || new L.Bounds(); - this._redrawBounds.extend(layer._pxBounds.min.subtract([padding, padding])); - this._redrawBounds.extend(layer._pxBounds.max.add([padding, padding])); - }, + if (!len) { return null; } - _redraw: function () { - this._redrawRequest = null; + // polyline centroid algorithm; only uses the first ring if there are multiple - if (this._redrawBounds) { - this._redrawBounds.min._floor(); - this._redrawBounds.max._ceil(); + for (i = 0, halfDist = 0; i < len - 1; i++) { + halfDist += points[i].distanceTo(points[i + 1]) / 2; } - this._clear(); // clear layers in redraw bounds - this._draw(); // draw layers + // The line is so small in the current view that all points are on the same pixel. + if (halfDist === 0) { + return this._map.layerPointToLatLng(points[0]); + } - this._redrawBounds = null; - }, + for (i = 0, dist = 0; i < len - 1; i++) { + p1 = points[i]; + p2 = points[i + 1]; + segDist = p1.distanceTo(p2); + dist += segDist; - _clear: function () { - var bounds = this._redrawBounds; - if (bounds) { - var size = bounds.getSize(); - this._ctx.clearRect(bounds.min.x, bounds.min.y, size.x, size.y); - } else { - this._ctx.clearRect(0, 0, this._container.width, this._container.height); + if (dist > halfDist) { + ratio = (dist - halfDist) / segDist; + return this._map.layerPointToLatLng([ + p2.x - ratio * (p2.x - p1.x), + p2.y - ratio * (p2.y - p1.y) + ]); + } } }, - _draw: function () { - var layer, bounds = this._redrawBounds; - this._ctx.save(); - if (bounds) { - var size = bounds.getSize(); - this._ctx.beginPath(); - this._ctx.rect(bounds.min.x, bounds.min.y, size.x, size.y); - this._ctx.clip(); - } - - this._drawing = true; + // @method getBounds(): LatLngBounds + // Returns the `LatLngBounds` of the path. + getBounds: function () { + return this._bounds; + }, - for (var order = this._drawFirst; order; order = order.next) { - layer = order.layer; - if (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) { - layer._updatePath(); - } - } + // @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this + // Adds a given point to the polyline. By default, adds to the first ring of + // the polyline in case of a multi-polyline, but can be overridden by passing + // a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)). + addLatLng: function (latlng, latlngs) { + latlngs = latlngs || this._defaultShape(); + latlng = toLatLng(latlng); + latlngs.push(latlng); + this._bounds.extend(latlng); + return this.redraw(); + }, - this._drawing = false; + _setLatLngs: function (latlngs) { + this._bounds = new LatLngBounds(); + this._latlngs = this._convertLatLngs(latlngs); + }, - this._ctx.restore(); // Restore state before clipping. + _defaultShape: function () { + return _flat(this._latlngs) ? this._latlngs : this._latlngs[0]; }, - _updatePoly: function (layer, closed) { - if (!this._drawing) { return; } + // recursively convert latlngs input into actual LatLng instances; calculate bounds along the way + _convertLatLngs: function (latlngs) { + var result = [], + flat = _flat(latlngs); - var i, j, len2, p, - parts = layer._parts, - len = parts.length, - ctx = this._ctx; + for (var i = 0, len = latlngs.length; i < len; i++) { + if (flat) { + result[i] = toLatLng(latlngs[i]); + this._bounds.extend(result[i]); + } else { + result[i] = this._convertLatLngs(latlngs[i]); + } + } - if (!len) { return; } + return result; + }, - this._drawnLayers[layer._leaflet_id] = layer; + _project: function () { + var pxBounds = new Bounds(); + this._rings = []; + this._projectLatlngs(this._latlngs, this._rings, pxBounds); - ctx.beginPath(); + var w = this._clickTolerance(), + p = new Point(w, w); - if (ctx.setLineDash) { - ctx.setLineDash(layer.options && layer.options._dashArray || []); + if (this._bounds.isValid() && pxBounds.isValid()) { + pxBounds.min._subtract(p); + pxBounds.max._add(p); + this._pxBounds = pxBounds; } + }, - for (i = 0; i < len; i++) { - for (j = 0, len2 = parts[i].length; j < len2; j++) { - p = parts[i][j]; - ctx[j ? 'lineTo' : 'moveTo'](p.x, p.y); + // recursively turns latlngs into a set of rings with projected coordinates + _projectLatlngs: function (latlngs, result, projectedBounds) { + var flat = latlngs[0] instanceof LatLng, + len = latlngs.length, + i, ring; + + if (flat) { + ring = []; + for (i = 0; i < len; i++) { + ring[i] = this._map.latLngToLayerPoint(latlngs[i]); + projectedBounds.extend(ring[i]); } - if (closed) { - ctx.closePath(); + result.push(ring); + } else { + for (i = 0; i < len; i++) { + this._projectLatlngs(latlngs[i], result, projectedBounds); } } - - this._fillStroke(ctx, layer); - - // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature }, - _updateCircle: function (layer) { - - if (!this._drawing || layer._empty()) { return; } - - var p = layer._point, - ctx = this._ctx, - r = layer._radius, - s = (layer._radiusY || r) / r; + // clip polyline by renderer bounds so that we have less to render for performance + _clipPoints: function () { + var bounds = this._renderer._bounds; - this._drawnLayers[layer._leaflet_id] = layer; + this._parts = []; + if (!this._pxBounds || !this._pxBounds.intersects(bounds)) { + return; + } - if (s !== 1) { - ctx.save(); - ctx.scale(1, s); + if (this.options.noClip) { + this._parts = this._rings; + return; } - ctx.beginPath(); - ctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false); + var parts = this._parts, + i, j, k, len, len2, segment, points; - if (s !== 1) { - ctx.restore(); - } + for (i = 0, k = 0, len = this._rings.length; i < len; i++) { + points = this._rings[i]; - this._fillStroke(ctx, layer); - }, + for (j = 0, len2 = points.length; j < len2 - 1; j++) { + segment = clipSegment(points[j], points[j + 1], bounds, j, true); - _fillStroke: function (ctx, layer) { - var options = layer.options; + if (!segment) { continue; } - if (options.fill) { - ctx.globalAlpha = options.fillOpacity; - ctx.fillStyle = options.fillColor || options.color; - ctx.fill(options.fillRule || 'evenodd'); - } + parts[k] = parts[k] || []; + parts[k].push(segment[0]); - if (options.stroke && options.weight !== 0) { - ctx.globalAlpha = options.opacity; - ctx.lineWidth = options.weight; - ctx.strokeStyle = options.color; - ctx.lineCap = options.lineCap; - ctx.lineJoin = options.lineJoin; - ctx.stroke(); + // if segment goes out of screen, or it's the last one, it's the end of the line part + if ((segment[1] !== points[j + 1]) || (j === len2 - 2)) { + parts[k].push(segment[1]); + k++; + } + } } }, - // Canvas obviously doesn't have mouse events for individual drawn objects, - // so we emulate that by calculating what's under the mouse on mousemove/click manually - - _onClick: function (e) { - var point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer; + // simplify each clipped part of the polyline for performance + _simplifyPoints: function () { + var parts = this._parts, + tolerance = this.options.smoothFactor; - for (var order = this._drawFirst; order; order = order.next) { - layer = order.layer; - if (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) { - clickedLayer = layer; - } - } - if (clickedLayer) { - L.DomEvent._fakeStop(e); - this._fireEvent([clickedLayer], e); + for (var i = 0, len = parts.length; i < len; i++) { + parts[i] = simplify(parts[i], tolerance); } }, - _onMouseMove: function (e) { - if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; } + _update: function () { + if (!this._map) { return; } - var point = this._map.mouseEventToLayerPoint(e); - this._handleMouseHover(e, point); + this._clipPoints(); + this._simplifyPoints(); + this._updatePath(); }, - - _handleMouseOut: function (e) { - var layer = this._hoveredLayer; - if (layer) { - // if we're leaving the layer, fire mouseout - L.DomUtil.removeClass(this._container, 'leaflet-interactive'); - this._fireEvent([layer], e, 'mouseout'); - this._hoveredLayer = null; - } + _updatePath: function () { + this._renderer._updatePoly(this); }, - _handleMouseHover: function (e, point) { - var layer, candidateHoveredLayer; + // Needed by the `Canvas` renderer for interactivity + _containsPoint: function (p, closed) { + var i, j, k, len, len2, part, + w = this._clickTolerance(); - for (var order = this._drawFirst; order; order = order.next) { - layer = order.layer; - if (layer.options.interactive && layer._containsPoint(point)) { - candidateHoveredLayer = layer; - } - } + if (!this._pxBounds || !this._pxBounds.contains(p)) { return false; } - if (candidateHoveredLayer !== this._hoveredLayer) { - this._handleMouseOut(e); + // hit detection for polylines + for (i = 0, len = this._parts.length; i < len; i++) { + part = this._parts[i]; - if (candidateHoveredLayer) { - L.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor - this._fireEvent([candidateHoveredLayer], e, 'mouseover'); - this._hoveredLayer = candidateHoveredLayer; + for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { + if (!closed && (j === 0)) { continue; } + + if (pointToSegmentDistance(p, part[k], part[j]) <= w) { + return true; + } } } + return false; + } +}); - if (this._hoveredLayer) { - this._fireEvent([this._hoveredLayer], e); - } - }, +// @factory L.polyline(latlngs: LatLng[], options?: Polyline options) +// Instantiates a polyline object given an array of geographical points and +// optionally an options object. You can create a `Polyline` object with +// multiple separate lines (`MultiPolyline`) by passing an array of arrays +// of geographic points. +function polyline(latlngs, options) { + return new Polyline(latlngs, options); +} - _fireEvent: function (layers, e, type) { - this._map._fireDOMEvent(e, type || e.type, layers); +/* + * @class Polygon + * @aka L.Polygon + * @inherits Polyline + * + * A class for drawing polygon overlays on a map. Extends `Polyline`. + * + * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points. + * + * + * @example + * + * ```js + * // create a red polygon from an array of LatLng points + * var latlngs = [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]]; + * + * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map); + * + * // zoom the map to the polygon + * map.fitBounds(polygon.getBounds()); + * ``` + * + * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape: + * + * ```js + * var latlngs = [ + * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring + * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole + * ]; + * ``` + * + * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape. + * + * ```js + * var latlngs = [ + * [ // first polygon + * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring + * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole + * ], + * [ // second polygon + * [[41, -111.03],[45, -111.04],[45, -104.05],[41, -104.05]] + * ] + * ]; + * ``` + */ + +var Polygon = Polyline.extend({ + + options: { + fill: true }, - _bringToFront: function (layer) { - var order = layer._order; - var next = order.next; - var prev = order.prev; + isEmpty: function () { + return !this._latlngs.length || !this._latlngs[0].length; + }, - if (next) { - next.prev = prev; - } else { - // Already last - return; - } - if (prev) { - prev.next = next; - } else if (next) { - // Update first entry unless this is the - // signle entry - this._drawFirst = next; + getCenter: function () { + // throws error when not yet added to map as this center calculation requires projected coordinates + if (!this._map) { + throw new Error('Must add layer to map before using getCenter()'); } - order.prev = this._drawLast; - this._drawLast.next = order; + var i, j, p1, p2, f, area, x, y, center, + points = this._rings[0], + len = points.length; + + if (!len) { return null; } - order.next = null; - this._drawLast = order; + // polygon centroid algorithm; only uses the first ring if there are multiple - this._requestRedraw(layer); - }, + area = x = y = 0; - _bringToBack: function (layer) { - var order = layer._order; - var next = order.next; - var prev = order.prev; + for (i = 0, j = len - 1; i < len; j = i++) { + p1 = points[i]; + p2 = points[j]; - if (prev) { - prev.next = next; - } else { - // Already first - return; + f = p1.y * p2.x - p2.y * p1.x; + x += (p1.x + p2.x) * f; + y += (p1.y + p2.y) * f; + area += f * 3; } - if (next) { - next.prev = prev; - } else if (prev) { - // Update last entry unless this is the - // signle entry - this._drawLast = prev; + + if (area === 0) { + // Polygon is so small that all points are on same pixel. + center = points[0]; + } else { + center = [x / area, y / area]; } + return this._map.layerPointToLatLng(center); + }, - order.prev = null; + _convertLatLngs: function (latlngs) { + var result = Polyline.prototype._convertLatLngs.call(this, latlngs), + len = result.length; - order.next = this._drawFirst; - this._drawFirst.prev = order; - this._drawFirst = order; + // remove last point if it equals first one + if (len >= 2 && result[0] instanceof LatLng && result[0].equals(result[len - 1])) { + result.pop(); + } + return result; + }, - this._requestRedraw(layer); - } -}); + _setLatLngs: function (latlngs) { + Polyline.prototype._setLatLngs.call(this, latlngs); + if (_flat(this._latlngs)) { + this._latlngs = [this._latlngs]; + } + }, -// @namespace Browser; @property canvas: Boolean -// `true` when the browser supports [``](https://developer.mozilla.org/docs/Web/API/Canvas_API). -L.Browser.canvas = (function () { - return !!document.createElement('canvas').getContext; -}()); + _defaultShape: function () { + return _flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0]; + }, -// @namespace Canvas -// @factory L.canvas(options?: Renderer options) -// Creates a Canvas renderer with the given options. -L.canvas = function (options) { - return L.Browser.canvas ? new L.Canvas(options) : null; -}; + _clipPoints: function () { + // polygons need a different clipping algorithm so we redefine that -L.Polyline.prototype._containsPoint = function (p, closed) { - var i, j, k, len, len2, part, - w = this._clickTolerance(); + var bounds = this._renderer._bounds, + w = this.options.weight, + p = new Point(w, w); - if (!this._pxBounds.contains(p)) { return false; } + // increase clip padding by stroke width to avoid stroke on clip edges + bounds = new Bounds(bounds.min.subtract(p), bounds.max.add(p)); - // hit detection for polylines - for (i = 0, len = this._parts.length; i < len; i++) { - part = this._parts[i]; + this._parts = []; + if (!this._pxBounds || !this._pxBounds.intersects(bounds)) { + return; + } - for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { - if (!closed && (j === 0)) { continue; } + if (this.options.noClip) { + this._parts = this._rings; + return; + } - if (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) { - return true; + for (var i = 0, len = this._rings.length, clipped; i < len; i++) { + clipped = clipPolygon(this._rings[i], bounds, true); + if (clipped.length) { + this._parts.push(clipped); } } - } - return false; -}; + }, + + _updatePath: function () { + this._renderer._updatePoly(this, true); + }, -L.Polygon.prototype._containsPoint = function (p) { - var inside = false, - part, p1, p2, i, j, k, len, len2; + // Needed by the `Canvas` renderer for interactivity + _containsPoint: function (p) { + var inside = false, + part, p1, p2, i, j, k, len, len2; - if (!this._pxBounds.contains(p)) { return false; } + if (!this._pxBounds.contains(p)) { return false; } - // ray casting algorithm for detecting if point is in polygon - for (i = 0, len = this._parts.length; i < len; i++) { - part = this._parts[i]; + // ray casting algorithm for detecting if point is in polygon + for (i = 0, len = this._parts.length; i < len; i++) { + part = this._parts[i]; - for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { - p1 = part[j]; - p2 = part[k]; + for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { + p1 = part[j]; + p2 = part[k]; - if (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) { - inside = !inside; + if (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) { + inside = !inside; + } } } + + // also check if it's on polygon stroke + return inside || Polyline.prototype._containsPoint.call(this, p, true); } - // also check if it's on polygon stroke - return inside || L.Polyline.prototype._containsPoint.call(this, p, true); -}; +}); + + +// @factory L.polygon(latlngs: LatLng[], options?: Polyline options) +function polygon(latlngs, options) { + return new Polygon(latlngs, options); +} + +/* + * @class GeoJSON + * @aka L.GeoJSON + * @inherits FeatureGroup + * + * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse + * GeoJSON data and display it on the map. Extends `FeatureGroup`. + * + * @example + * + * ```js + * L.geoJSON(data, { + * style: function (feature) { + * return {color: feature.properties.color}; + * } + * }).bindPopup(function (layer) { + * return layer.feature.properties.description; + * }).addTo(map); + * ``` + */ + +var GeoJSON = FeatureGroup.extend({ + + /* @section + * @aka GeoJSON options + * + * @option pointToLayer: Function = * + * A `Function` defining how GeoJSON points spawn Leaflet layers. It is internally + * called when data is added, passing the GeoJSON point feature and its `LatLng`. + * The default is to spawn a default `Marker`: + * ```js + * function(geoJsonPoint, latlng) { + * return L.marker(latlng); + * } + * ``` + * + * @option style: Function = * + * A `Function` defining the `Path options` for styling GeoJSON lines and polygons, + * called internally when data is added. + * The default value is to not override any defaults: + * ```js + * function (geoJsonFeature) { + * return {} + * } + * ``` + * + * @option onEachFeature: Function = * + * A `Function` that will be called once for each created `Feature`, after it has + * been created and styled. Useful for attaching events and popups to features. + * The default is to do nothing with the newly created layers: + * ```js + * function (feature, layer) {} + * ``` + * + * @option filter: Function = * + * A `Function` that will be used to decide whether to include a feature or not. + * The default is to include all features: + * ```js + * function (geoJsonFeature) { + * return true; + * } + * ``` + * Note: dynamically changing the `filter` option will have effect only on newly + * added data. It will _not_ re-evaluate already included features. + * + * @option coordsToLatLng: Function = * + * A `Function` that will be used for converting GeoJSON coordinates to `LatLng`s. + * The default is the `coordsToLatLng` static method. + */ + + initialize: function (geojson, options) { + setOptions(this, options); + + this._layers = {}; + + if (geojson) { + this.addData(geojson); + } + }, + + // @method addData( data ): this + // Adds a GeoJSON object to the layer. + addData: function (geojson) { + var features = isArray(geojson) ? geojson : geojson.features, + i, len, feature; + + if (features) { + for (i = 0, len = features.length; i < len; i++) { + // only add this if geometry or geometries are set and not null + feature = features[i]; + if (feature.geometries || feature.geometry || feature.features || feature.coordinates) { + this.addData(feature); + } + } + return this; + } + + var options = this.options; + + if (options.filter && !options.filter(geojson)) { return this; } + + var layer = geometryToLayer(geojson, options); + if (!layer) { + return this; + } + layer.feature = asFeature(geojson); + + layer.defaultOptions = layer.options; + this.resetStyle(layer); + + if (options.onEachFeature) { + options.onEachFeature(geojson, layer); + } + + return this.addLayer(layer); + }, + + // @method resetStyle( layer ): this + // Resets the given vector layer's style to the original GeoJSON style, useful for resetting style after hover events. + resetStyle: function (layer) { + // reset any custom styles + layer.options = extend({}, layer.defaultOptions); + this._setLayerStyle(layer, this.options.style); + return this; + }, + + // @method setStyle( style ): this + // Changes styles of GeoJSON vector layers with the given style function. + setStyle: function (style) { + return this.eachLayer(function (layer) { + this._setLayerStyle(layer, style); + }, this); + }, + + _setLayerStyle: function (layer, style) { + if (typeof style === 'function') { + style = style(layer.feature); + } + if (layer.setStyle) { + layer.setStyle(style); + } + } +}); + +// @section +// There are several static functions which can be called without instantiating L.GeoJSON: + +// @function geometryToLayer(featureData: Object, options?: GeoJSON options): Layer +// Creates a `Layer` from a given GeoJSON feature. Can use a custom +// [`pointToLayer`](#geojson-pointtolayer) and/or [`coordsToLatLng`](#geojson-coordstolatlng) +// functions if provided as options. +function geometryToLayer(geojson, options) { + + var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson, + coords = geometry ? geometry.coordinates : null, + layers = [], + pointToLayer = options && options.pointToLayer, + _coordsToLatLng = options && options.coordsToLatLng || coordsToLatLng, + latlng, latlngs, i, len; + + if (!coords && !geometry) { + return null; + } + + switch (geometry.type) { + case 'Point': + latlng = _coordsToLatLng(coords); + return pointToLayer ? pointToLayer(geojson, latlng) : new Marker(latlng); + + case 'MultiPoint': + for (i = 0, len = coords.length; i < len; i++) { + latlng = _coordsToLatLng(coords[i]); + layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new Marker(latlng)); + } + return new FeatureGroup(layers); + + case 'LineString': + case 'MultiLineString': + latlngs = coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, _coordsToLatLng); + return new Polyline(latlngs, options); + + case 'Polygon': + case 'MultiPolygon': + latlngs = coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, _coordsToLatLng); + return new Polygon(latlngs, options); + + case 'GeometryCollection': + for (i = 0, len = geometry.geometries.length; i < len; i++) { + var layer = geometryToLayer({ + geometry: geometry.geometries[i], + type: 'Feature', + properties: geojson.properties + }, options); + + if (layer) { + layers.push(layer); + } + } + return new FeatureGroup(layers); + + default: + throw new Error('Invalid GeoJSON object.'); + } +} + +// @function coordsToLatLng(coords: Array): LatLng +// Creates a `LatLng` object from an array of 2 numbers (longitude, latitude) +// or 3 numbers (longitude, latitude, altitude) used in GeoJSON for points. +function coordsToLatLng(coords) { + return new LatLng(coords[1], coords[0], coords[2]); +} + +// @function coordsToLatLngs(coords: Array, levelsDeep?: Number, coordsToLatLng?: Function): Array +// Creates a multidimensional array of `LatLng`s from a GeoJSON coordinates array. +// `levelsDeep` specifies the nesting level (0 is for an array of points, 1 for an array of arrays of points, etc., 0 by default). +// Can use a custom [`coordsToLatLng`](#geojson-coordstolatlng) function. +function coordsToLatLngs(coords, levelsDeep, _coordsToLatLng) { + var latlngs = []; + + for (var i = 0, len = coords.length, latlng; i < len; i++) { + latlng = levelsDeep ? + coordsToLatLngs(coords[i], levelsDeep - 1, _coordsToLatLng) : + (_coordsToLatLng || coordsToLatLng)(coords[i]); + + latlngs.push(latlng); + } + + return latlngs; +} + +// @function latLngToCoords(latlng: LatLng, precision?: Number): Array +// Reverse of [`coordsToLatLng`](#geojson-coordstolatlng) +function latLngToCoords(latlng, precision) { + precision = typeof precision === 'number' ? precision : 6; + return latlng.alt !== undefined ? + [formatNum(latlng.lng, precision), formatNum(latlng.lat, precision), formatNum(latlng.alt, precision)] : + [formatNum(latlng.lng, precision), formatNum(latlng.lat, precision)]; +} + +// @function latLngsToCoords(latlngs: Array, levelsDeep?: Number, closed?: Boolean): Array +// Reverse of [`coordsToLatLngs`](#geojson-coordstolatlngs) +// `closed` determines whether the first point should be appended to the end of the array to close the feature, only used when `levelsDeep` is 0. False by default. +function latLngsToCoords(latlngs, levelsDeep, closed, precision) { + var coords = []; + + for (var i = 0, len = latlngs.length; i < len; i++) { + coords.push(levelsDeep ? + latLngsToCoords(latlngs[i], levelsDeep - 1, closed, precision) : + latLngToCoords(latlngs[i], precision)); + } + + if (!levelsDeep && closed) { + coords.push(coords[0]); + } + + return coords; +} + +function getFeature(layer, newGeometry) { + return layer.feature ? + extend({}, layer.feature, {geometry: newGeometry}) : + asFeature(newGeometry); +} + +// @function asFeature(geojson: Object): Object +// Normalize GeoJSON geometries/features into GeoJSON features. +function asFeature(geojson) { + if (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') { + return geojson; + } + + return { + type: 'Feature', + properties: {}, + geometry: geojson + }; +} + +var PointToGeoJSON = { + toGeoJSON: function (precision) { + return getFeature(this, { + type: 'Point', + coordinates: latLngToCoords(this.getLatLng(), precision) + }); + } +}; + +// @namespace Marker +// @method toGeoJSON(): Object +// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature). +Marker.include(PointToGeoJSON); + +// @namespace CircleMarker +// @method toGeoJSON(): Object +// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the circle marker (as a GeoJSON `Point` Feature). +Circle.include(PointToGeoJSON); +CircleMarker.include(PointToGeoJSON); + + +// @namespace Polyline +// @method toGeoJSON(): Object +// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polyline (as a GeoJSON `LineString` or `MultiLineString` Feature). +Polyline.include({ + toGeoJSON: function (precision) { + var multi = !_flat(this._latlngs); + + var coords = latLngsToCoords(this._latlngs, multi ? 1 : 0, false, precision); + + return getFeature(this, { + type: (multi ? 'Multi' : '') + 'LineString', + coordinates: coords + }); + } +}); + +// @namespace Polygon +// @method toGeoJSON(): Object +// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polygon (as a GeoJSON `Polygon` or `MultiPolygon` Feature). +Polygon.include({ + toGeoJSON: function (precision) { + var holes = !_flat(this._latlngs), + multi = holes && !_flat(this._latlngs[0]); + + var coords = latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true, precision); + + if (!holes) { + coords = [coords]; + } + + return getFeature(this, { + type: (multi ? 'Multi' : '') + 'Polygon', + coordinates: coords + }); + } +}); + + +// @namespace LayerGroup +LayerGroup.include({ + toMultiPoint: function (precision) { + var coords = []; + + this.eachLayer(function (layer) { + coords.push(layer.toGeoJSON(precision).geometry.coordinates); + }); + + return getFeature(this, { + type: 'MultiPoint', + coordinates: coords + }); + }, + + // @method toGeoJSON(): Object + // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `FeatureCollection`, `GeometryCollection`, or `MultiPoint`). + toGeoJSON: function (precision) { + + var type = this.feature && this.feature.geometry && this.feature.geometry.type; + + if (type === 'MultiPoint') { + return this.toMultiPoint(precision); + } + + var isGeometryCollection = type === 'GeometryCollection', + jsons = []; + + this.eachLayer(function (layer) { + if (layer.toGeoJSON) { + var json = layer.toGeoJSON(precision); + if (isGeometryCollection) { + jsons.push(json.geometry); + } else { + var feature = asFeature(json); + // Squash nested feature collections + if (feature.type === 'FeatureCollection') { + jsons.push.apply(jsons, feature.features); + } else { + jsons.push(feature); + } + } + } + }); + + if (isGeometryCollection) { + return getFeature(this, { + geometries: jsons, + type: 'GeometryCollection' + }); + } + + return { + type: 'FeatureCollection', + features: jsons + }; + } +}); + +// @namespace GeoJSON +// @factory L.geoJSON(geojson?: Object, options?: GeoJSON options) +// Creates a GeoJSON layer. Optionally accepts an object in +// [GeoJSON format](http://geojson.org/geojson-spec.html) to display on the map +// (you can alternatively add it later with `addData` method) and an `options` object. +function geoJSON(geojson, options) { + return new GeoJSON(geojson, options); +} + +// Backward compatibility. +var geoJson = geoJSON; -L.CircleMarker.prototype._containsPoint = function (p) { - return p.distanceTo(this._point) <= this._radius + this._clickTolerance(); +/* + * @class ImageOverlay + * @aka L.ImageOverlay + * @inherits Interactive layer + * + * Used to load and display a single image over specific bounds of the map. Extends `Layer`. + * + * @example + * + * ```js + * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg', + * imageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]]; + * L.imageOverlay(imageUrl, imageBounds).addTo(map); + * ``` + */ + +var ImageOverlay = Layer.extend({ + + // @section + // @aka ImageOverlay options + options: { + // @option opacity: Number = 1.0 + // The opacity of the image overlay. + opacity: 1, + + // @option alt: String = '' + // Text for the `alt` attribute of the image (useful for accessibility). + alt: '', + + // @option interactive: Boolean = false + // If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered. + interactive: false, + + // @option crossOrigin: Boolean = false + // If true, the image will have its crossOrigin attribute set to ''. This is needed if you want to access image pixel data. + crossOrigin: false, + + // @option errorOverlayUrl: String = '' + // URL to the overlay image to show in place of the overlay that failed to load. + errorOverlayUrl: '', + + // @option zIndex: Number = 1 + // The explicit [zIndex](https://developer.mozilla.org/docs/Web/CSS/CSS_Positioning/Understanding_z_index) of the tile layer. + zIndex: 1, + + // @option className: String = '' + // A custom class name to assign to the image. Empty by default. + className: '', + }, + + initialize: function (url, bounds, options) { // (String, LatLngBounds, Object) + this._url = url; + this._bounds = toLatLngBounds(bounds); + + setOptions(this, options); + }, + + onAdd: function () { + if (!this._image) { + this._initImage(); + + if (this.options.opacity < 1) { + this._updateOpacity(); + } + } + + if (this.options.interactive) { + addClass(this._image, 'leaflet-interactive'); + this.addInteractiveTarget(this._image); + } + + this.getPane().appendChild(this._image); + this._reset(); + }, + + onRemove: function () { + remove(this._image); + if (this.options.interactive) { + this.removeInteractiveTarget(this._image); + } + }, + + // @method setOpacity(opacity: Number): this + // Sets the opacity of the overlay. + setOpacity: function (opacity) { + this.options.opacity = opacity; + + if (this._image) { + this._updateOpacity(); + } + return this; + }, + + setStyle: function (styleOpts) { + if (styleOpts.opacity) { + this.setOpacity(styleOpts.opacity); + } + return this; + }, + + // @method bringToFront(): this + // Brings the layer to the top of all overlays. + bringToFront: function () { + if (this._map) { + toFront(this._image); + } + return this; + }, + + // @method bringToBack(): this + // Brings the layer to the bottom of all overlays. + bringToBack: function () { + if (this._map) { + toBack(this._image); + } + return this; + }, + + // @method setUrl(url: String): this + // Changes the URL of the image. + setUrl: function (url) { + this._url = url; + + if (this._image) { + this._image.src = url; + } + return this; + }, + + // @method setBounds(bounds: LatLngBounds): this + // Update the bounds that this ImageOverlay covers + setBounds: function (bounds) { + this._bounds = bounds; + + if (this._map) { + this._reset(); + } + return this; + }, + + getEvents: function () { + var events = { + zoom: this._reset, + viewreset: this._reset + }; + + if (this._zoomAnimated) { + events.zoomanim = this._animateZoom; + } + + return events; + }, + + // @method: setZIndex(value: Number) : this + // Changes the [zIndex](#imageoverlay-zindex) of the image overlay. + setZIndex: function (value) { + this.options.zIndex = value; + this._updateZIndex(); + return this; + }, + + // @method getBounds(): LatLngBounds + // Get the bounds that this ImageOverlay covers + getBounds: function () { + return this._bounds; + }, + + // @method getElement(): HTMLElement + // Returns the instance of [`HTMLImageElement`](https://developer.mozilla.org/docs/Web/API/HTMLImageElement) + // used by this overlay. + getElement: function () { + return this._image; + }, + + _initImage: function () { + var img = this._image = create$1('img', + 'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : '') + + (this.options.className || '')); + + img.onselectstart = falseFn; + img.onmousemove = falseFn; + + // @event load: Event + // Fired when the ImageOverlay layer has loaded its image + img.onload = bind(this.fire, this, 'load'); + img.onerror = bind(this._overlayOnError, this, 'error'); + + if (this.options.crossOrigin) { + img.crossOrigin = ''; + } + + if (this.options.zIndex) { + this._updateZIndex(); + } + + img.src = this._url; + img.alt = this.options.alt; + }, + + _animateZoom: function (e) { + var scale = this._map.getZoomScale(e.zoom), + offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min; + + setTransform(this._image, offset, scale); + }, + + _reset: function () { + var image = this._image, + bounds = new Bounds( + this._map.latLngToLayerPoint(this._bounds.getNorthWest()), + this._map.latLngToLayerPoint(this._bounds.getSouthEast())), + size = bounds.getSize(); + + setPosition(image, bounds.min); + + image.style.width = size.x + 'px'; + image.style.height = size.y + 'px'; + }, + + _updateOpacity: function () { + setOpacity(this._image, this.options.opacity); + }, + + _updateZIndex: function () { + if (this._image && this.options.zIndex !== undefined && this.options.zIndex !== null) { + this._image.style.zIndex = this.options.zIndex; + } + }, + + _overlayOnError: function () { + // @event error: Event + // Fired when the ImageOverlay layer has loaded its image + this.fire('error'); + + var errorUrl = this.options.errorOverlayUrl; + if (errorUrl && this._url !== errorUrl) { + this._url = errorUrl; + this._image.src = errorUrl; + } + } +}); + +// @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options) +// Instantiates an image overlay object given the URL of the image and the +// geographical bounds it is tied to. +var imageOverlay = function (url, bounds, options) { + return new ImageOverlay(url, bounds, options); }; - - /* - * @class GeoJSON - * @aka L.GeoJSON - * @inherits FeatureGroup + * @class VideoOverlay + * @aka L.VideoOverlay + * @inherits ImageOverlay * - * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse - * GeoJSON data and display it on the map. Extends `FeatureGroup`. + * Used to load and display a video player over specific bounds of the map. Extends `ImageOverlay`. + * + * A video overlay uses the [`