Topological Data Modelling for 3D GIS
نویسندگان
چکیده
3D data modelling is one of the key problems within research works of 3D GIS. This paper focused on the research of a topological 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-manifold with (n-1)-pseudomanifold boundary cycles was introduced. After that the formal framework to describe the topological relationships between 3D spatial features was been given. Finally we gives geometric structure of 3D spatial features and presents the topology model based on geometric structure of 3D spatial features.
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