一种新换面作图法

A New Method of Transforming Projection Plane

换面法是工程图学课程中的重要内容之一,应用广泛。换面法是图解空间几何问题的重要手段,可解决较多的定位和度量问题。在换面法作图中,往往度量线段次数较多,作图很不方便。该文给出的新的换面作图,需设立两个轴,其中一个为换面轴,另一个为度量轴,使作图中度量线段次数大大减少,从而简化了作图,并给出了实例。

The method of transforming projection plane takes an important role in engineering graphics and has a widely application. It is important in illustrating problems about spatial geometry and can solve many location and measuring problems. In the operation of transforming projection plane, the more times of measuring, the less convenient it is, so a new method of transforming projection plane is put forward. Two axes are established, one for changing planes, the other for measuring axis. Some examples are given and show that the new method can reduce times of measuring lines and can simplify drawing process.