基于零件图重建装配图的图结构研究

STUDY ON EGRENERATING THE GRAPHIC STRUCTURE OF ASSEMBLY DRAWING BASED ON THE PART DRAWING

基于图结构的理论，用图的方法描述装配图的数据结构，以零件图为单位，实现零件图与装配图的信息共享，减少数据冗余，同时利用图的拓扑排序描述由零件图重建装配图的装配顺序，减少人工干预，提高整个机械ＣＡＤ的水平。

Based on theory of graphic strucuure,describing data structurewith graphic method, regarding part drawing as unit, the information ofassembly drawing and part drawing can be shared. Therefore, the datadiffuseness is reduced. Meanwhile, to reduce the man-made man agementand to raise the level of all machine CAD, the assembly order from partdrawing to assembly drawing is described by using topology permutation.