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Last active August 29, 2015 14:24
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How to create polylines to symbolize a shared boundary
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Polylines.md

How to create polylines to symbolize a shared boundary

  • Download and install Mapshaper
$ npm install -g mapshaper
  • Using a topologically-sound polygon dataset as the input, run and -innerlines tag on the mapshaper command:
$ mapshaper boundary_polygons.shp -innerlines -o

  • This will output “boundary_polygons-ms.shp” polylines suitable for symbolizing the the inner, shared boundaries of an administrative structure.

    • NOTE: This will strip the resultant polyline geometries of all attributes. The original polygons should be used for labels or other symbolizations.
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