摘要
空间拓扑关系的分析判断是GIS研究的基础。针对射线法理论判定点与多边形的位置关系中可能出现的问题,提出了相应的补充算法,并由此引申得出了确定两个简单多边形空间关系的解决思路。
The analysis of topological spatial relationships is the foundation of GIS research. In the light of the problems probably occur in the determination of the spatial relationship between the point and polygon by using the ray casting theory, this paper puts forward the supplementary method, and from its extensions, obtain the solution for the determination of the spatial relationship between two simple polygons.
出处
《科技情报开发与经济》
2008年第28期223-224,共2页
Sci-Tech Information Development & Economy
关键词
点
多边形
空间关系
point
polygon
spatial relationship