Operations for two-dimensional polygons.

Additional selection tools for Annotorious and the Annotorious OpenSeadragon plugin

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

An improved polygon editing tool with more features and better usability

Checks if a point is inside an area, like a city boundary.

Fill a polygon with lines

TypeScript definitions for d3-polygon

Add image annotation functionality to any web page with a few lines of JavaScript

Additional drawing tools for Annotorious

hast utility to create an element from a simple CSS selector

Calculates the distance from a point to the edges of a polygon or multi-polygon.

Takes a kinked polygon and returns a feature collection of polygons that have no kinks.

Annotorious for OpenSeadragon

Smooths a Polygon or MultiPolygon, based on Chaikin's algorithm.

Martinez polygon clipping algorithm, does boolean operation on polygons (multipolygons, polygons with holes etc): intersection, union, difference, xor

Takes polygons or multipolygons and an optional mask, and returns an exterior ring polygon with holes.

Apply boolean Polygon clipping operations (intersection, union, difference, xor) to your Polygons & MultiPolygons.

Annotorious React bindings

Determine selector specificity with postcss-selector-parser