We introduce a noise-resistant algorithm for reconstructing a watertight surface from point cloud data. It forms a Delaunay tetrahedralization, then uses a variant of spectral graph partitioning to decide whether each tetrahedron is inside or out

Delaunay三角剖分理论研究，适用于简化网络拓扑结构。-Delaunay triangulation of theoretical research, on simplifying the network topology.