AutoCAD环境下面向对象参数化设计的实现

文章论述了一种面向对象的参数化设计方法。采用基于有向无环超图的约束表示，完整的建立参数化模型，不仅可以表示简单约束关系，还可以方便的表示元素间的双向约束。在交互绘图的过程中获取约束关系并保存，实现参数驱动。利用功能强大的0bjectARX1]进行AutoCAD上的二次开发，采用面向对象的技术，充分利用0bjectARX的类库，有效发挥其封装性和扩展性，在Windows环境下和VC 结合编程，实现参数化设计。

Implementation of object oriented parametric design based on AutoCAD

We discuss the object-oriented parametric design.using the constraints representation based on the directed hypergraph,we create the parametric model completely.The way can express not only the simple constraints but also the bi-directional constraints.During the process of the mutual drawing,we can record the constraints and implement parameter-driven graphics.By making use of the power ObjectARX,we make the exploitation based on AutoCAD.Using the Object-oriented technology and the class llibraries,we can efficiently exert encapsulation and extension and implement the parametric design based on Windows and VC++.