ZHENG Chunyan, GUO Qingsheng, HU Huake, XIA Huiqiong. Method for Constructing the Hierarchical Structure of Contour Lines Based on Constrained Delaunay Triangulation[J]. Geomatics and Information Science of Wuhan University, 2008, 33(5): 524-527.
Citation: ZHENG Chunyan, GUO Qingsheng, HU Huake, XIA Huiqiong. Method for Constructing the Hierarchical Structure of Contour Lines Based on Constrained Delaunay Triangulation[J]. Geomatics and Information Science of Wuhan University, 2008, 33(5): 524-527.

Method for Constructing the Hierarchical Structure of Contour Lines Based on Constrained Delaunay Triangulation

Funds: 国家自然科学基金资助项目(40571133),地理空间信息工程国家测绘局重点实验室开放研究基金资助项目(200625)
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  • Received Date: March 16, 2008
  • Revised Date: March 16, 2008
  • Published Date: May 04, 2008
  • In order to identify the proximity relations between the constraining objects,the characters of the constrained Delaunay triangulation which is built while contour lines are analyzed,elevation points and terrain variation lines are constrains,and a detailed classification for edges of the constrained Delaunay triangulation is made,a method for constructing one kind of hierarchical structure of the contour lines is proposed.The technologies on adjusting the direction of the contour line based on this hierarchical structure are studied.

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