A formal model describing topological relations between spatial linear objects in GIS-T

摘要：

The importance of studying topological relations between spatial linear objects is expounded.The concepts endpoint,interior,exterior and boundary of spatial linear object are defined on the basis of basic theories of point-set topology,and a formal and perfect model describing topological relations between spatial linear objects is proposed based on that.Fifteen negative rules are putted forward to exclude the impossible topological relations which are described by the model according to the realistic physical meaning of spatial linear objects.The smallest set of topological relations between spatial line objects is proposed,and the exclusivity and perfectibility of the smallest set are proved.

关键词： Topological relation 16-intersection model point set topology spatial linear object

作者: Zhang Shuijian Li Yongshu

作者单位: GIS engineering Center of Southwest Jiao tong University,ChengDu,610031

会议类型: 国际会议

会议名称: 第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）