3D topology model on body divided

摘要

This paper introduces author's some working and thinking about 3DGIS. First, the paper discusses who really need 3DGIS? What 3D functions are needed for them? Then introduce author's some work, including (1) five group topologic relation, (2) data structure based on the five groups relation, (3) method of Introduce surface divide body, (4) concept of One surface with three layers. (5) Think of present surface with a group of small C2 continuos cubic surfaces, (6) volume interpolation in inner body.