Spatial Operations
Test spatial relations and combine polygons with union, intersection, or difference.
How to use
- Paste Geometry A and Geometry B.
- Pick a boolean relation (intersects/contains/within/…) to test them, or a set operation (union/intersection/difference) to combine them.
- In Batch mode, upload a GeoJSON FeatureCollection and set one fixed reference geometry — every uploaded feature is compared against it.
Geometry A
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Spatial Operations Coverage
Tests boolean relations (intersects, contains, within, and more) between two geometries, or combines them with a set operation (union, intersection, difference).
Batch mode uploads a GeoJSON FeatureCollection and compares every feature in it against one fixed reference geometry.
Frequently asked questions
What's the difference between intersects and contains?
Intersects is true if the geometries share any point, including just touching at an edge; contains is stricter — true only if the entire second geometry lies inside the first.
Can I compare many features against one boundary at once?
Yes — Batch mode fixes one reference geometry and applies the chosen relation or operation to every uploaded feature.