Auto CAD中有关换面法问题的二次开发与应用

The second development and the application of the method of changing plane in Auto CAD

着重研究了运用Auto CAD中内嵌的Autolisp语言解决换面法中一般线段求实长及与投影面夹角的问题。

This article is about how to use the Autolisp language in Auto CAD to solve the question to get the real length of the line and the angle between the line and the projecting plane.