← Topology Tools

Edge Extender

Extend polygon boundaries outward to meet a parent boundary — for example ADM3 sub-national areas that fall short of their ADM0 country edge. Drop a polygon layer; the tool extends each polygon's edges outward via a Voronoi diagram.

Drop a file here

Polygon layer in WGS84 — admin boundaries, basins, etc. GeoJSON · GeoParquet · GeoPackage · Shapefile (ZIP).

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