基于特征的实体造型数据结构

The Feature-based Solid Modeling Data Structure

从特征设计的角度分析了实体造型的不足，在吸收相关工作优点的基础上，提出基于特征的实体造型数据结构．其中包括引入非流形表示，增加连接边和连接点，尤其是扩展边的内涵，引伸出多点边，使实体造型与特征造型有机结合，向符合工程设计需要的产品模型方向转化．

in this paper, some weakness of solid modeling is indicated from the point of view of feature design. By taking advantage of the existing feature modeling techniques, a single non-manifold data structure is proposed which contains joint-edge and joint-vertex, especially multipoint-edge. The solid modeling is combined with feature modeling, thus being changed into product modeling to meet the needs of engineering design.