geometry

The Esri Geometry API for Java enables developers to write custom applications for analysis of spatial data.

A java library for Google s2

Makes the 'Qhull' library <http://www.qhull.org> available in R, in a similar manner as in Octave and MATLAB. Qhull computes convex hulls, Delaunay triangulations, halfspace intersections about a point, Voronoi diagrams, furthest-site Delaunay triangulations, and furthest-site Voronoi diagrams. It runs in 2D, 3D, 4D, and higher dimensions. It implements the Quickhull algorithm for computing the convex hull. Qhull does not support constrained Delaunay triangulations, or mesh generation of non-convex objects, ...

Euclid

Implementations of ISO 19107 (Spatial Schema).

Alchemist geometric components for Euclidean spaces

Geometry Model

Implementation of GeoAPI geometries interface.

Processes for handling of geometry.

Common Geometry library for the yildiz project, contains utilities to handle geometry concepts.