摘要
本文通过对画法几何学中各种空间几何元素与投影面夹角的分析，从一个全新的角度来研究画法几何学中的投影变换问题，从而找出投影变换的内在根源与变换规律。
Om the basis of amgular between the various geometrical space elements and the projection surface in drawing geometry,this paper studies the problems of projection transfer in drawing geometry from a completely new aspect, amd finally finds the interior source and transfer regulation of projection transfer.
出处
《华北水利水电学院学报》
1995年第1期70-74,共5页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
投影
换面
角度分析
画法几何
Projection,Surface transder,Angular analysis
