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Quick Approach to Construct Constrained Delaunay TIN for Line-Selection Design of Mountain Road 被引量:1
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作者 WANG Zi-ru1, LIANG Yao-long1, LI Ming-qiu2 (1. School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024 2. School of Foreign Languages, Dalian Fisheries University, Dalian 116023, China) 《Computer Aided Drafting,Design and Manufacturing》 2008年第2期9-12,共4页
According to the topography of mountains, the discrete data points from map of the whole region are first subdivided into subregions with the points taken from the feature lines of ridge, valley and scarp being insert... According to the topography of mountains, the discrete data points from map of the whole region are first subdivided into subregions with the points taken from the feature lines of ridge, valley and scarp being inserted into the map point set, and using the feature lines as the boundaries of subregions to build constrained Delaunay TIN. Such an approach has the advantages of ensuring high accuracy and fast speed of line layout. 展开更多
关键词 road line-selection topographic feature constraining delaunay tin constraining boundary
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