Run buffer, intersection, and difference analysis locally in your browser for GeoJSON vector layers.
Create buffer polygons around points, lines, or polygons with configurable distance units.
Extract overlapping geometry between a source layer and an overlay layer.
Subtract erase layer geometry from a target layer and download the remaining features.
vectorAnalysis.convex-hull.description
ベクトルレイヤの各フィーチャの幾何学的中心点を計算します。