See also:

• Science: Math: Geometry: Software  (33)
• Science: Math: Software  (596)

Amenta's Directory of Computational Geometry Software - - Lot of categories and links.

CGAL - Computational Geometry Algorithms Library - - A collaborative effort to develop a robust, easy to use, and efficient C++ software library of geometric data structures and algorithms.

CM2 Mesh Tools - - Professional C++ mesh generators. Includes product information and news releases.

Computational Geometry Code - - Jeff Erickson's links to freely available implementations of geometric algorithms and software.

Delaunay Triangulation Code - - J-D. Boissonnat et al.'s code for Delaunay meshing in 2 and 3 dimensions in C++.

Edgebreaker 3D Compression for Triangle Meshes - - Source code, explanations, file formats, and examples of the Edgebreaker compression and decompression techniques.

Fast Industrial-Strength Triangulation - - By Martin Held. Copes with polygons with holes and degeneracies/self-intersections; based on repeatedly clipping ears. Source code on request.

Fast Robust Predicates for Computational Geometry - - C code for orientation and incircle tests using adaptive-precision floating-point arithmeti.

FastGEO Computational Geometry Library - - FastGEO, A computational geometry library written in the object pascal language.

Gmsh - - Gmsh is a three-dimensional finite element mesh generator, primarily Delaunay, with built-in pre- and post-processing facilities. Gmsh is freely available for Windows and most UNIX platforms.

GTS - The GNU Triangulated Surface Library - - Open-source library for manipulating 3D triangular surface meshes. Delaunay triangulations, robust geometric predicates, robust boolean set operations on surfaces, surface refinement and coarsening, level-of-detail, k-d trees, volume and curvature, strips generation.

HULL - - Ken ClarkSon's convex hulls, Delaunay triangulations, alpha shapes calculator in .

JeoEdit - - Two Java applets for editing polygons and point sets for input to computational geometry software.

Knotenpunkt - - Produces commercial software that creates a surface model out of a pointcloud or polymesh [Balingen, Germany].

Knotplot - - A program for exploring topological knots and knot-like objects in a 3-D rendered environment offering stills, animated knots (including dynamic forces) and demos. Aimed at mathematician and artist alike.

Mg R-tree Library - - A simple C++ R-tree implementation with Segment Incidences Detector as an application.

Polygon Boolean operations on sets of polygons - - GDSII viewer + Algorithms for 2d polygon boolean operations, C++ source cod.

Polyhedral FAQ - - Frequently Asked Questions in Polyhedral Computation.

Polymake - - A tool for the algorithmic treatment of polytopes and polyhedra.

Qhull - - Computes convex hulls, Delaunay triangulations, Voronoi diagrams, half-space intersections about a point, furthest-site Delaunay triangulations, and furthest-site Voronoi diagrams. It runs in 2-d, 3-d, 4-d, and higher dimensions.

QMG project - - Mesh generation in 2D and 3D on Unix and NT, and related software by Steven Vavasis.

Reviver Homepage - - A Free Surface Reconstructor which turns unorganised point clouds to surfaces. Variety of Output Formats. (Surface Reconstruction Software.

Smallest Enclosing Ball of Points - - Fast and robust C++ code available under GNU license. Handles arbitrary dimensions, and has high numerical stability.

Stony Brook Algorithm Repository - Section on Computational Geometry - - Summary of major CG problems and implementations of their solution.

Surface Evolver - - Free interactive program for modelling liquid surfaces shaped by various forces and constraints, e.g., minimal surfaces (bubbles). Applies gradient descent to minimize energy. Available for most platforms.

Surface Reconstruction Algorithms Page - - Links to Surface Reconstruction software, papers, people.

Triangle - - Jonathan Richard Shewchuk's Two-Dimensional Quality Mesh Generator and Delaunay Triangulator.