GIS线目标间拓扑关系描述的4交差模型

¹ 中南大学测绘与国土信息工程系,长沙市岳麓山,410083;² 香港理工大学土地测量与地理资讯学系,香港九龙红磡;³ 华中师范大学城市与环境科学学院,武汉市珞喻路152号,430079

基金项目: 香港理工大学资助项目(G-T873);国家自然科学基金资助项目(40501053);测绘遥感信息工程国家重点实验室开放研究基金资助项目(WKL040304)

详细信息

A Generic Model of Line/Line Topological Relations in GIS

¹ Department of Surveying and Geo-informatics,Central South University,Yuelushan,Changsha 410083,China;² Department of Land Surveying and Geo-informatics,The Hong Kong Polytechnic University,Kowloon,Hong Kong;³ College of Urban and Environment Sciences,Huazhong Normal University,152 Luoyu Road,Wuhan 430079,China

Funds: 香港理工大学资助项目(G-T873);国家自然科学基金资助项目(40501053);测绘遥感信息工程国家重点实验室开放研究基金资助项目(WKL040304)

摘要: 提出了利用连通度不变量来区分单个线目标上具有不同拓扑特性的点,进一步定义了线目标的端点集和内点集。在此基础上,建立了IR1和IR2中线目标间拓扑关系的基本模型。该模型能有效地表达线目标间拓扑关系的变化特性。
- 拓扑关系 /
- 线目标 /
- 拓扑距离 /
- 概念邻域 /
- 余维数
Abstract: The concept of connective degree is utilized for the identification of topological difference in the geometric structure of a line,its generally topological definition of a line is given.A generic model,called the 4-intersection-and-difference,is set up for the description of basic line-line topological relations,upon which a conceptual neighborhood graph is built with the consideration of topological distance.It concludes that the proposed model in this paper can represent the property of topological changes,and basic relations between line segments in IR~1 and IR~2.
- topological relations /
- line object /
- topological distance /
- conceptual neighborhood /
- co-dimension