基于维扩展9交集矩阵的拓扑分析原型系统设计  

Design of Topology Analysis System Based on DE9-IM Model

作　　者：康维维[1] 左怀玉[1] 钟志农[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《兵工自动化》2007年第6期44-46,共3页Ordnance Industry Automation

基　　金：国家自然科学基金项目(60472031)

摘　　要：空间地理信息系统中地理空间目标间的拓扑关系,采用维扩展9交矩阵模型,通过构建Geometry、TopoGraph及IntersectionMatrix完成空间拓扑分析与查询。第1阶段先实例化交集矩阵模型对象,获取两几何体交集、添加Node节点到拓扑关系图,精确其拓扑关系。第2阶段再进一步精确第一阶段所得结果。第3阶段对几何关系进行精确解并满足其交集,获得准确的空间二维几何体间拓扑关系。The topological relationship among spatial objects in spatial geography information system adopts DE9-IM model and realizes topological analyzing and inquiring through constructing Geometry, TopoGraph and IntersectionMatrix. The steps are as follows： 1. Acquire the two geometric intersections, add Nodes to the topological relationship map and ensure the topological relationship based on of instantiation for the IM model. 2. Ensure accurate results at the first phase. 3. Carry out accurate solving of geometrical relationship and satisfy the intersection requirements, and acquire the accurate topological relationships.

关 键 词：地理空间目标 拓扑分析 维扩展9交矩阵模型 模型对象 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]