Annotate and mark images
Operations for two-dimensional polygons.
determine if a point is inside a polygon with a ray intersection counting algorithm
TypeScript definitions for d3-polygon
Checks if a point is inside an area, like a city boundary.
Martinez polygon clipping algorithm, does boolean operation on polygons (multipolygons, polygons with holes etc): intersection, union, difference, xor
Converts a bounding box to a GeoJSON polygon.
A point in polygon based on the paper Optimal Reliable Point-in-Polygon Test and Differential Coding Boolean Operations on Polygons
tsParticles polygon shape
Fill a polygon with lines
Takes polygons or multipolygons and an optional mask, and returns an exterior ring polygon with holes.
Takes a kinked polygon and returns a feature collection of polygons that have no kinks.
Annotations for Chart.js
Smooths a Polygon or MultiPolygon, based on Chaikin's algorithm.
ThreeJS geometry for drawing polygons on a sphere
Visual feedback for AI coding agents
Apply boolean Polygon clipping operations (intersection, union, difference, xor) to your Polygons & MultiPolygons.
Find self-intersections in geojson polygon (possibly with interior rings)
Finds points that fall within polygon(s).
Finds the tangents of a polygon from a point.
Flowtype linting rules for ESLint.
Calculates the distance from a point to the edges of a polygon or multi-polygon.
A JS library for finding optimal label position inside a polygon
Calculates the geodesic area in square meters of one or more polygons.