基于交互式三维参数化造型的研究

Research on realizing Interactive 3D-Parametric modeling

参数化设计是当今计算机辅助设计领域的一种新的设计方法,交互式三维参数化造型可以在原有模型的基础上快速而方便地生成新的设计方案,从而大大地提高设计效率。所讨论的是通过引入特征和约束关系,利用现有的几何实体造型系统来实现交互式的三维参数化造型的方法,并通过实例来验证该方法的正确性。

Parametric design shows enormous superiority in the respect of modifying product models, and now ot becomes a hot study of CAD field. The paper presents a method of reNDing 3D parametric modeling based on solid geometry modeling system , which recommends feature,and establish constrains among feature entities in order to cause chain reaction of constrains. Thus it raises greatly effciency of designing products.