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Geogram
Jul 20, 2023
Programming library of geometric algorithms
Geogram is a programming library of geometric algorithms. It includes a simple yet efficient Mesh data structure for surfacic and volumetric meshes, exact computer arithmetics a-la Shewchuck, implemented in GEOexpansion, a predicate code generator PCK Predicate Construction Kit, standard geometric predicates orient/insphere, Delaunay triangulation, Voronoi diagram, spatial search data structures, spatial sorting and less standard ones more general geometric predicates, intersection between a Voronoi diagram and a triangular or tetrahedral mesh embedded in n dimensions. The latter is used by FWD/WarpDrive, the first algorithm that computes semi-discrete Optimal Transport in 3d that scales up to 1 million Dirac masses see compute_OTM in example programs.
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