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《Science of Surveying and Mapping》 2007-01
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An improved TIN algorithm based on auto-coupling triangle

TAN Ren-chun ①,YAO Lan ①,LIU Min ②(① Wuhan Design Survey Research Institute,Wuhan 430022,China;② Guangzhou Urban Planning & Design Survey Research Institute,Guangzhou 510060,China)  
Aiming at the shortcoming of algorithm of Auto-Coupling Triangulation,this paper makes some improvement on it.The improved algorithm brings out a thought of "first division then modeling".It first divides the large region of terrain into some smaller subblocks and then calculates in some specified ones.Finally,it uses the improved algorithm to build the terrain model and gets a good improvement in efficiency.
【Fund】: 国家自然科学基金项目(基金编号40071071)
【CateGory Index】: P224.2
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