Intersections and Unions

Geometry API Union operation calculated union of pair or more geometries (polygons or multi-polygons) previously generated with Geoapify APIs. For example, you can calculate union of isolines.

The typical Union operation request URL looks like:

  • operation - name of the operation. Possible values: "union", "intersection";
  • id - id of a geometry. The id is provided in the response of previously called API
  • apiKey - your Geoapify key

NOTE! A call to geometry API is charged as a call to Places or Geocoding API. However, one call is calculated for each geometry pair. So if you provide 4 ids in the request, it will be calculated as 3 requests.