基于等高线数据鱼骨状 DEM 的建立

Generating Fishbone DEM from Contour Data

介绍了几种基于等高线数据建立数字高程模型（ＤＥＭ）的常用方法，并对各自应用的优缺点进行了分析．根据铁路线路工程设计的实际需要，在具体分析数字等高线数值特征和几何特征的基础上，探讨了基于普通微机和地形图数字化建立鱼骨状ＤＥＭ的简单。

In this pater,several methods are introduced to generate digital elevation model (DEM) from digitized contour data,also their application characteristic is discussed respectively.Considering the practical needs of railway location design,we analyzed the data feature and geometric feature of digitized contours,and gave out a simple and practical method for generating DEM with computer and digitized topographic map.