The 2D and 3D graphics of shaft parts have been automatically drawn by ObjectARX visiting the AutoCAD database directly and entitative Boolean calculation. Andmake the loading of the AutoCAD menu and toolbar.

• 深入研究了ObjectARX的编程技术，通过对AutoCAD数据库进行读写操作，并采用实体间的布尔运算解决了复杂立体图形和平面图形的自动绘制。