turf polygon smooth module
Smooths a Polygon or MultiPolygon, based on Chaikin's algorithm.
Find self-intersections in geojson polygon (possibly with interior rings)
TypeScript implementation of GeoArrow
Operations for two-dimensional polygons.
TypeScript definitions for d3-polygon
Fast point-in-polygon intersection for large numbers of polygons.
A point in polygon based on the paper Optimal Reliable Point-in-Polygon Test and Differential Coding Boolean Operations on Polygons
determine if a point is inside a polygon with a ray intersection counting algorithm
GeoJSON implementation of RBush
Checks if a point is inside an area, like a city boundary.
Takes a collection of features and returns a standard deviational ellipse.
react animation library
A BVH implementation to speed up raycasting against three.js meshes.
TypeScript definitions for polygon-lookup
Converts a bounding box to a GeoJSON polygon.
Calculates the distance from a point to the edges of a polygon or multi-polygon.
Fill a polygon with lines
Takes polygons or multipolygons and an optional mask, and returns an exterior ring polygon with holes.
Takes a set of points and a set of polygons and/or multipolygons and performs a spatial join.
Takes a kinked polygon and returns a feature collection of polygons that have no kinks.
Martinez polygon clipping algorithm, does boolean operation on polygons (multipolygons, polygons with holes etc): intersection, union, difference, xor
Apply boolean Polygon clipping operations (intersection, union, difference, xor) to your Polygons & MultiPolygons.
ThreeJS geometry for drawing polygons on a sphere