关键词:与历程无关; 拓扑元素; 编码; 虚拓扑元素; 子边
Coding mechanism for topological entities in semantic feature modeling
GAO Xue-yao, SUN Li-juan
(School of Computer Science & Technology, Harbin University of Science & Technology, Harbin 150080, China)
Abstract:The naming and coding for topological entities were all for history-based modeling systems, which could not entirely support history-independent semantic feature modeling.This paper proposed a feature-based method for naming topological entities, and proposed a uniform coding method of topological entities. Gave differentiate methods and coding format for the split faces and edges. And proposed virtual topological entity and sub-edge according to topological entities variation after model modifying. Remained relations between topological entities to realize history-independent model modification. The proposed method was realized in HUST-CAID. ......