Polygon Packages

compute the area of a 2d polygon

Determine if an x y coordinate exists in a polygon.

Calculate the area of a simple polygon

Polygon tools

Javascript implementation of GEOS's Polygonize function

perform boolean operations on arbitrary polygons in 2d

A simple polygon chart component for React apps

A pure javascript implementation of the QuickHull algorithm for finding the smallest polygon enclosing a set of points

Interpolate circle to polygon for GeoJSON

utility for working with polygons (arrays of vec2s)

Dissolve contiguous GeoJSON LineStrings and Polygons into single units.

Zoopla inspired freehand polygon creation using Leaflet.js.

Return random position inside geoJson Polygon or MultiPolygon

Create N number of random points inside of a polygon

A 2D constrained Delaunay triangulation library

An algorithm to decompose polygons with holes from "A practical algorithm for decomposing polygonal domains into convex polygons by diagonals" by J Fernández

Converts polylines, wkts, wkbs, polygons, circles, rectangles, as well as standard geoJSON into geoJSON MultiPolygon Feature Objects. Converts wkb_list and FeatureCollection to arrays.

Return the centroid for a given convex polygon.

Check if point is inside polygon

test if 2D convex polygon is clockwise