文章基本信息

标题：A New Mechanism of Naming Topological Entities for Semantic Feature Operations
本地全文：下载
作者：Gao, Xue-Yao ; Zhang, Chun-Xiang ; Ren, Ming-Yuan 等
期刊名称：Journal of Software
印刷版ISSN：1796-217X
出版年度：2012
卷号：7
期号：3
页码：705-711
DOI：10.4304/jsw.7.3.705-711
语种：English
出版社：Academy Publisher
摘要：Naming topological entities and the validity maintenance of model are two important issues in Computer Aided Design, which can make a semantic feature model conform to all constraints correctly. In this paper, a new mechanism of naming topological entities based on face features is proposed. Based on the corresponding mechanisms for naming topological entities, the methods of coding entities, sub-entities and virtual entities are given. The mechanisms for maintaining the validity of semantic feature operations are described. Sub-edges, sub-faces, virtual faces and virtual sub-edges are applied to process the problem of face obliteration. Sub-edges and virtual edges are used to process the problem of edge obliteration. After the mechanisms for naming topological entities and the methods of validity maintenance are applied to HUST-CAID system, its modeling performance is improved and the feasibility of the proposed mechanisms and methods above is also proved.
关键词：topological entities; validity maintenance; semantic feature model; virtual entities; face obliteration; edge obliteration