考虑地形特征的三角网数模建立方法

An algorithm of TIN in consideration of terrain features

提出了一种考虑地形特征的基于 THIESSEN三角形化的三角构网法 ,从图论学的角度出发 ,论证了采用 THIESSEN三角网法的必要性和合理性 ,探讨了几种地形特征的各自特点和相应的处理方法。经实例验证 ,该方法效果很好 ,充分说明该思路是可行的、高效的 。

A triangulation method based on THIESSEN triangles in consideration of terrain features is presented in this paper. According to the theory of graphic science, the necessity and rationality is studied. Respective characteristics and handing methods are discussed. The methods are proved to be feasible and efficient through a successful engineering case.