The main a48 repository hosts an efficient implementation of a polygon mesh data structure (class a48::MeshT), using half-edge [Mantyla:1988]; a powerful set of operators based on Stellar Theory, named stellar operators (class a48::StellarMeshT), for mesh manipulation; and an adaptive mesh representation (class a48::AdaptiveMeshT) with simplification and refinement strategies. There are two sub-repositories called mesh and stellar, of the main a48 repository, hosting all codes related to a48::MeshT and a48::StellarMeshT, made available for teaching purposes:

$ git clone git://gitorious.impa.br/a48/mesh.git

$ git clone git://gitorious.impa.br/a48/stellar.git

M4G library overview: (top) the classes and policies to manipulate and represent a meshed surface; (bottom) the applications toward a GPU-based geometric system.