期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：1998
卷号：XXXII Part 4
出版社：Copernicus Publications
摘要：3D data modelling is one of the key problems within research works of 3D GIS. This paper focused on the research of atopological model based on space partition for 3D GIS. Firstly the formal definition of 3D spatial features were given.Then the methods for calculating topological properties to support simplexes topologically equivalent to an n-manifoldwith (n-1)-pseudomanifold boundary cycles was introduced. After that the formal framework to describe the topologicalrelationships between 3D spatial features was been given. Finally we gives geometric structure of 3D spatial features andpresents the topology model based on geometric structure of 3D spatial features
关键词：3D GIS; topological data model; space partition; topological properties; topological relationships
