基于MapGIS7.0的空间拓扑规则管理机制研究  

The research of spatial topology rules managing mechanism based on MapGIS7.0

作　　者：潘婵玲 周顺平[2] 杨林[2] 陈荣潮[3] 

机构地区：[1]广西航空遥感测绘院 [2]中国地质大学信息工程学院 [3]武汉工程大学

出　　处：《测绘科学》2009年第1期222-224,共3页Science of Surveying and Mapping

基　　金：国家863项目:"面向网络海量空间信息的大型GIS"(编号:2003AA133010)

摘　　要：空间拓扑规则是GIS软件维护空间拓扑关系的一致性和正确性的主要方法,该方法的具体实现则取决于GIS软件所采用的数据模型。本文针对MapGIS7.0面向实体的空间数据模型"要素-几何-空间"三级数据管理模式提出了一套相应的空间拓扑规则管理机制,设计了详细的针对点线区要素类的一元和二元拓扑规则,并通过实例介绍了应用拓扑规则检查空间关系的过程和算法。该机制被应用于GIS平台软件MapGIS7.0中,很好地实现了对拓扑规则的统一和高效管理。Spatial topology rules is the primary method which GIS software insures the consistency and validity of spatial topology relation. The realization of the method lies on the data model of GIS software. This paper brings forward a compliant managing mechanism for spatial data topology rules aimed at the ＂feature-geometry-spatial＂ three-layered data manage mode of MapGIST. 0 entity-oriented spatial data model. It designs detailed unitary and duality topology rules aimed at point line region feature class. It also introduces the process and method of using topology rules to check spatial relation by examples, and applies the mechanism to GIS software MapGIS7.0. The method is proved to be an ideal way to manage topology rules in GIS software with highly efficiency.

关 键 词：拓扑规则 地理实体 空间数据 

分 类 号：P231.5[天文地球—摄影测量与遥感]