拓扑变换在画法几何中的应用

Applications of topological map in descriptive geometry

对拓扑变换的作图原理进行了论述 ,对三种拓扑变换方法给出了证明 。

The drawing principles of topological map are discussed.Three topological map methods are presented and proved to be hilt.The applications of some topological maps to solve problems of location between irregular surfaces in descriptive geometry are discussed with the examples.