1. The Key Techniques of Spatial Database Based on Regularly Spatial Discrete Domains Objects
   Date：03-17-2010 Hits：1 Comments：0
   In this paper, the objects that we research are spatial geometry in three-dimensional Euclidean space. The definitions of spatial objects conform to OpenGIS specification. OpenGIS specification is a non-compellable specification, which is es....
   
   

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