摘要
本文提出直接在已知三视图中用平行投射方法作立体图，并指出此方法在计算机绘图中的应用．
The writing will give an introduction of the method what the writer had made suggestions that a three-dimansional drawing can be directly made by a parallel projection with the three known projection drawing and point out the perspective of applying the computer drawing.
关键词
平行投射立体图
计算机绘图
三视图
平移变换
Parallel projection three-dimansional drawing Make drawing with computer.
