基于Oracle Spatial的空间线/面拓扑关系判断的实现  

Realization of Judgment of the Topological Relationships Between Spatial Line and Polygon Based on Oracle Spatial

作　　者：乔柱 岳国森 

机构地区：[1]广东省佛山市顺德区测绘大队,广东佛山528333 [2]广东省佛山市城市规划勘测设计研究院,广东佛山528000

出　　处：《测绘与空间地理信息》2008年第1期130-134,共5页Geomatics & Spatial Information Technology

摘　　要：利用Oracle Spatial提供的简单的空间关系查询操作算子,对九交模型所描述的任意两个2维空间不自相交的线目标与面目标(不含空洞)的拓扑关系判断设计了算法,最终进行了试验验证,实现了线目标与面目标间的19种空间拓扑关系的判断。This paper designed the algorithm to judge the topological relationships between non - serf- intersection line object and polygon object in arbitrary 2D spaces described by 9 - intersection model using the simple arithmetic operators of spatial relationship query provided by Oracle Spatial. The practical experiment testified that the algorithm realized the judgment for 19 types of spatial topological relationships between line object and polygon object.

关 键 词：空间拓扑关系 九交模型 对象关系型数据库 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]