三角网数字地面模型的研究及应用

A Study and Apllication of Triangles Digital Terrain Model

本文介绍一个三角网数字地面模型小型程序.详述了三角网数模建立过程中的数据排序分区、三角形构网、地形断裂线处理及三角网检索、高程内插等过程的基本原理和方法。为加快三角网检索速度,提出了一种以三角形重心为参照物的三角形重心检索系统,介绍了程序实现的具体方法和步骤。试验结果表明,该系统用于工程实际是可行的,能满足公路路线设计的需要。

This paper deals with a triangles digital terrain model software package. The basic theory and methods of data sorting and dividing, triangles setting up, breakline processing, triangles searching and contours interpolating are introduced in this paper. To accelerate triangles searching speed, a triangles masspoints searching system is put forward in this paper. The ways and procedures to realize it with programs are presented too. It has been shown after test that this system is feasible for actual engineering, and can meet the demand of highway alingment design.