摘要
讨论了任意球面三角格网p的三拓扑数计算。任意球面三角格网p的三拓扑数是指和该球面三角格网互为三邻近的目标球面三角格网的个数,它是讨论球面栅格区域局部拓扑不变量的重要参数,也是描述和推断球面栅格拓扑关系首先要解决的问题。
Spherical QTM （quaternary triangular mesh） is efficient to deal with the global data because of its advantages of multi-resolution and hierarchy. Computation of three topological numbers on spherical QTM is presented. Three topological numbers of any triangles is the numbers of 3-neighbor to the triangle, which is the base of computing topological relation of Spherical QTM.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2008年第1期60-63,104,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(40701152,40471108)
关键词
球面四元三角网
三邻近
三拓扑数
spherical QTM
3-neibhour
three topological numbers
