Connector.makeMoorPyConnector now makes fixed point when joined:

- Created Node.isJoined method to check if a node is joined to anything.
- Changed Connector.makeMoorPyConnector to check if a node is joined,
  in which case the MP point will be fixed rather than free.

Author: mattEhall

famodel/famodel_base.py

@@ -188,6 +188,19 @@ def join(self, object):
             raise Exception("This would attach two higher-level nodes, which is not supported.")
 
 
+    def isJoined(self):
+        '''Check if this node is joined to anything else.'''
+        
+        for att in self.attachments.values():  # Look through everything attached
+            object = att['obj']
+            if isinstance(object, Node):  # Only another node could be joined
+                if self.id in object.attachments:
+                    return True
+                    
+        # If we've gotten this far, it's not joined with anything
+        return False
+    
+    
     def separate(self, object):
         '''Opposite of join'''
 

famodel/mooring/connector.py

@@ -59,8 +59,14 @@ def makeMoorPyConnector(self, ms):
         ms : class instance
             MoorPy system 
         '''
+        
+        if self.isJoined(): # if the connector is joined to something
+            pointType = 1  # make it a fixed point
+        else:
+            pointType = 0  # otherwise a free point
+        
         # create connector as a point in MoorPy system
-        ms.addPoint(0,self.r)
+        ms.addPoint(pointType, self.r)
 
         # assign this point as mpConn in the anchor class instance
         self.mpConn = ms.pointList[-1]