8ZHONGDH, LIMC, SONGLG, etal. Enhanced NURBS modeling and visualization for large 3D geo- engineering applications:an example from the J inping first level hydropower engineering project, China [J]. Computer and Geoseienees, 2006, 32(9): 1270 -1282.
9Floriai LD. An on-line algorithm for constrained delaunay triangulation [ J ]. CAGIP: Graphical Models and Image Processing, 1992, 54(3): 290- 300.