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基于特征的设计方法在三维零件设计中及面向制造的设计过程中得到广泛应用，但是由于二维图形在机械零件设计中的地位，决定了二维图形依然是设计师的表达语言。本文就针对基于零件的二维特征的参数化设计进行了深入的研究，提出了一种基于二维特征的参数化设计的特征分析和特征建模方法，该方法对实现基于二维特征的参数化设计具有重要的意义。
Feature-based design methods are widely used in three-dimensional part design and manufacturing-oriented design process. However, due to the position of two-dimensional graphics in the design of mechanical parts, two-dimensional graphics are still the designer’s expression language. In this paper, the parametric design of two-dimensional feature-based parts is deeply studied, and a two-dimensional feature-based parametric design of feature analysis and feature modeling method is proposed. Design is of great significance.