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文中提出一个基于图基高层次图素的产品参数化设计方法，对图基及图基骨架的概念和定义作了阐述，讨论了图基的性质及其分类，提出了一系列图基构造算子，给出了一个基于图基骨架自组织的算法和信息模型，得出了一个利用尺寸约束树把不同图基线素之间的尺寸约束向其中某一图基内部尺寸约束的转换方法，并在此基础上给出一个基于图基的参数化设计算法．应用此方法摆脱了传统基于几何拓扑低层次线素繁琐的交互设计工作
In this paper, a product parametric design method based on high-level graph base graph is proposed. The concepts and definitions of graph base and graph base skeleton are expounded. The properties and classification of graph base are discussed. A series of graph base constructions are proposed A self-organizing algorithm and information model based on graph skeleton is given, and a transformation method that uses the size constraint tree to constrain the size constraints between different graph radicals to the inner size of one of the graph radicals is derived. Based on this, a graph-based parametric design algorithm is given. This method is used to get rid of the traditional design work of tedious interaction of low-level linear elements based on geometric topology