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通过对参数化的分析、研究，提出参数化设计过程和图形参数化的概念，推出基于形状特征的参数化作图的变量设计方法．该方法以含控制形状特征的几何参数变量的模型图为图标，引导驱动，交互输入变量值并响应形状特征的语义操作，实现参数化设计过程．同时又记录参数变量值，显示参数化作图进程，以便修改参数变量值优化图形，实现图形形状特征同构不同大小的变化和异变
Through analyzing and studying the parameterization, the concept of parameterized design process and parameterization is put forward, and the variable design method based on the parameterization of shape characteristics is introduced. The method takes the model diagram of the geometric parameter variables that control the shape characteristics as the icons, guides the driving, interactively inputs the variable values and responds to the semantic operations of the shape features to realize the parametric design process. At the same time, the values of parameter variables are recorded, and the process of parameterized graphing is displayed so as to modify the values of the parameter variables and optimize the graphs so as to realize the variation and variation of isomorphism of the graph shape features