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《Geography and Geo-Information Science》 2003-06
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An Algorithm for Generating Terrain Section Line Based on TIN

MA Zhao- ting, PAN Mao , HU Jin- xing, WU Huan- ping ( Key Laboratory of Orogenic Belts and Crustal Evolution , Ministry of Education , Peking University, Beijing 100871 , China)  
This paper presents an algorithm for generating terrain section line on TIN DTM based on the algorithm on Grid DTM. It makes full use of the topology relation among triangles in TIN to search triangles intersected with the section line, which increases the efficiency of the algorithm. It can also be adapted to massive multi - resolution TIN data since the simplified TIN still keeps the topology relation.
【Fund】: 国家863计划资助项目(2001AA135180)
【CateGory Index】: P216
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