摘要
本文提出一种以三角网数字地形模型为基础,自动插绘地形等高线的程序系统。文中介绍了建立三角网数模的基本原理和方法,并提出了一种在三角网数模中快速搜索地形等高线的算法。依据上述原理,用FORTRAN语言编制了完整的计算机程序,在APOLLO工作站上运行通过。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。
In this paper a small program package is presented for generating contour from triangular network digital terrain model. The principle and method areintroduced that the triasngular network digital terrain model is set, and analgorithm is presented for seeking contour quickly from them. Based on theseconcepts, a set of computer programs is written in FORTRAN and implementedon an APOLLO computer workstation. The test result indicates that theprogram package is feasible in highway itinerary design.
出处
《交通科学与工程》
1991年第4期65-73,共9页
Journal of Transport Science and Engineering
关键词
三角网数字地形模型
参考点
断裂线
等高线搜索
triangular network digital terrain model
reference point
break line
contour threading
