VoteWell

Blog post

Running locally

# install & run
nvm use
make run

build:

make dist

Sources

Poll data

Ward boundaries (Canada 2021)

Converting boundary Shapefiles to geoJson

install ogr2ogr for coordinate conversion

• run a GDAL docker container

docker run -it ghcr.io/osgeo/gdal:ubuntu-small-latest

copy the shapefile directory into the container

convert coordinates:

cd data
ogr2ogr -t_srs EPSG:4326 -f geoJSON -lco COORDINATE_PRECISION=7 ridings.json your_shapefile.shp

import that geojson into mongo

if you want to simplify the shape (for faster lookups)

• go to https://mapshaper.org/
• upload ridings.json
• simplify (6-12% is a good starting range)
• export, overwrite original file