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《ACTA GEODAETICA ET CARTOGRAPHICA SINICA》 1997-02
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STUDY ON A HYBRID DATA STRUCTURE IN 3D GIS

Li Deren, Li Qingquan (Wuhan Technical University of Surveying and Mapping, 430070)  
In this paper, after an analysis of data structures in 3D GIS, three dimensional run length encoding method is developed and the theory and algorithms of tetrahedral network(TEN) are completed. A hybrid data structure based on Octree and TEN is presented. The concept of 3D GIS based on hybrid data stucture is introduced. Finally, some experiments are made to prove the results.
【Fund】: 测绘遥感信息工程国家重点实验室开放研究基金
【CateGory Index】: TP311.12
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