摘要
论述了如何利用ＡｕｔｏＣＡＤ提供的扩展图元数据使单个的图元数据具有某些模型属性，并实现其它各向视图、剖面图的自动生成，及整个模型实体的移动、拷贝等．
Discussed in this paper is the Application of extended picture data provided by AutoCAD for the object model to possess certain properties. It can effect automation of projection drawing and profile drawing, and make possible the moving and the copying of the whole object model.
