浅谈线性地物在CAD中的定义

The superficial discussion about the definition of linear objects in AUTOCAD

我们在CAD环境中处理、修改陆上地形测图时,一旦离开了绘图软件(清华三维等)环境,就会碰到不能很方便的修改线性地物的问题,如增加点、线,修改已经绘好的线性地物,但通过调用自己定义好的CAD acad.lin文件中已有的各种线型,便能实现所需陡坎、斜坡等线性地物的绘制。文章讨论了如何进行这些形文件的定义和调用,从而达到方便修改线性地物的目的。

When we deal with the maps in the environment of AUTOCAD, perhaps we can meet the problem of modification to the linear objects without the soft of mapping such as adding points and lines or modification to linear objects. We can realize it by the definition of all kinds of line types. The paper discussion the method of definition and transferring to the shape files to modifying the line type expediently.