An interactive program for creating polygons and determining if a given point is inside or outside the polygons

Code from O'Rourke book "Computational Geometry algorithms in C" 1997

Interpolation of function value inside boundry element and grid generation

Ray casting point-in-polygon algorithm

Points inside or outside the polygon.

A small module to generate a point in a polygon in O(n) time.

Python implementation of polygon-inclusion algorithm based on the winding number

A Julia package for polygon clipping.

A loose grab-bag of python scripts I've used to help deal with KML files and other mapping-related shenanigans

🌐 Go implementation Point-In-Polygon Algorithm

🌐 Rust implementation Point-In-Polygon Algorithm

A .NET library to work with IAU constellations

A fast 'point(s)-in-polygon' test for MATLAB.

Spherical Point in Polygon Implementation

A fast points(s)-in-polygons(s) test for MATLAB.

A Swift package to determine whether a point is within a polygon

The Tektosyne Library for Java provides algorithms for computational geometry and graph-based pathfinding, along with supporting mathematical utilities and specialized collections.

Generic Polygon Operations

Shortest Path Algorithms on an Ocean Routing Graph extracted from Open Street Map data.

A visualization of the point-in-polygon algorithm.