Intersect GeoJSON
Calculate the shared area between two GeoJSON Polygon or MultiPolygon inputs and return the intersection geometry.
Input
Inputs that only touch at an edge or point have no polygon-area result.
Review these warnings
GeoJSON
Map preview
Understanding Intersect GeoJSON
Spatial relationships and derived geometry
Calculate the shared area between two GeoJSON Polygon or MultiPolygon inputs and return the intersection geometry.
Intersect GeoJSON evaluates where features lie relative to one another or creates geometry from that relationship. Geometry validity, boundary rules and compatible coordinate assumptions control the result.
How to verify the operation
Inputs that only touch at an edge or point have no polygon-area result.
Review Intersect GeoJSON with feature counts, empty outputs, boundary cases and a few known examples. Confirm units and CRS assumptions before treating the result as authoritative.