Image augmentation for machine learning experiments.

🌎 Large-scale WebGL-powered Geospatial Data Visualization analysis framework which relies on Mapbox GL or AMap to render basemaps.

The fastest and smallest JavaScript polygon triangulation library for your WebGL apps

🍂🗺️ The most powerful leaflet plugin for drawing and editing geometry layers

A modest library for moving between Well-Known Text (WKT) and various framework geometries

🌏 FreeDraw allows the free-hand drawing of shapes on your Leaflet.js map layer – providing an intuitive and familiar UX for creating geospatial boundaries similar to Zoopla and others. Included out-of-the-box is the concaving of polygons, polygon merging and simplifying, as well as the ability to add edges and modify existing shapes.

Fast, header-only polygon triangulation

RectLabel - An image annotation tool to label images for bounding box object detection and segmentation.

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

About using of canvas in the flutter

Geo-Toolkit for PHP.

An Unreal Engine 4 implementation of the Polygonal Map Generator for generating islands found at http://www-cs-students.stanford.edu/~amitp/game-programming/polygon-map-generation/

100x Faster Slicing of SCAD Files for 3D Printing

A library of intersection algorithms covering all SVG shape types

2D Geometry for Unity. Suited for everyday polygon hassle. Polygon clipping, polygon winding direction, polygon area, polygon centroid, centroid of multiple polygons, line intersection, point-line distance, segment intersection, polygon-point containment, polygon triangulation, polygon Voronoi diagram, polygon offset, polygon outline, polygon buffer, polygon union, polygon substraction, polygon boolean operations, and more. It is a polygon fest.

C# port of the famous GLU Tessellator - prebuilt binaries now available in "releases" tab

Matlab geometry toolbox for 2D/3D geometric computing

AFPlan is an architectural floor plan analysis and recognition system to create extended plans for building services.

this library Drawing polygon, polyline and points in Google Map and return coordinates to your App

Cython wrapper for the C++ translation of the Angus Johnson's Clipper library (ver. 6.4.2)

📐 Net standard geometry/shape manipulation library, can be used to merge / split shapes

Calculate CATransform3D between two Perspectives

几何画图（h5）

Calculate the polygon's centerline

Go library for Boolean operations on 2D polygons.

Python helper functions for manipulating GeoJSON

[mirror] An open source freeware polygon clipping library

a 3d modeler

A web application for drawing music.