基于不同DEM模型的输电线路断面自动绘制程序设计

Program Design of Generating Transmission Line Section Automatically Based on Different DEM Models

随着测绘科学技术的不断发展,航测技术应用到输电线路测量越来越广泛,通过航测技术可以得到格网的DEM模型,在没有航测的地区,也可以通过收集到的地形图得到等高线的DEM模型。在以往的作业中,剖断面需要花费大量的人工操作,本文采用基于AutoCAD的LISP和VBA语言联合编程,实现对不同DEM模型的输电线路断面自动生成,并在具体的实验项目中得到了较好的应用。

With the development of surveying and mapping technology,aerial survey technique is used on transmission line surveying more and more widely.We can get the grid DEM model through aerial surveying and we can also get the contour DEM model from aerial survey areas.In the past,a lot of time was required to make section mapping by man.In this paper,based on LISP and VBA language of CAD,different DEM models are realized to generate the transmission line section automatically,which achieved a good result in the experiment project.