快速实现AutoCAD三视图宽相等的开发方法

Method of Realizing Wide Equal of Three Views in AutoCAD

在AutoCAD2004环境下,利用ARX开发工具,根据我国绘制机件三视图的制图标准,开发了一个快速实现三视图中俯、左视图宽相等的ARX应用程序。论述了程序的实现方法,以及程序实现过程中的一些关键技术,如图中实体最大、最小X、Y坐标值的获取方法、辅助线图层的生成方法等。利用该程序,用户只要拾取俯视图或左视图中的一点,程序就可以快速找到它在左视图或俯视图中对应的宽度位置,并自动画出辅助线。该程序已用于某机械CAD中,大大提高了设计和绘图的效率。

Using the tools and platforms such as ARX, according to the cartography standard of our country, this article develops an AutoCAD application on realize wide equal of three views rapidly, discusses the methods of realizing program, and resolves some key techniques, such as the methods of getting Max x etc and creating new layer. Using the application, user can draw three views rapidly and exactly, and guarantee the projection laws among top and left view. The application has been used in a machine CAD. It raises working efficiency greatly.