摘要
为了提高语义特征建模系统中布尔操作的运行效率,提出了一种基于语义表示法的布尔操作算法。该算法用语义表示法表示特征模型,用细胞元模型组织和管理特征元素,用语义面替代几何面来提高特征的交互检测效率,通过细胞分裂和语义面分解来生成新实体。该算法不仅可以快速准确地生成布尔实体,还可以避免几何面的丢失及"孔洞"等错误的发生。实验证明,该算法具有广泛的使用前景和实用价值。
To improve the efficiency of boolean operations in semantic feature modeling system, a semantic representa- tion based method was proposed. It represents feature models with semantic representation, manages feature elements by cellular model, improves detect efficiency of features interaction and builds new the feature entity by splitting inter- sectant cells and semantic faces. This method can not only build the boolean entity rapidly and exactly, but also avoid errors such as holes and losing geometry faces. Experiments on computer show that this new method is more adaptable and practicable.
出处
《计算机科学》
CSCD
北大核心
2012年第7期276-279,共4页
Computer Science
基金
国家自然科学基金(60173055)
黑龙江省教育厅科学技术研究项目基金(12511095)资助
关键词
CAD
语义表示法
布尔操作
细胞元模型
特征
CAD, Semantic representation, Boolean operation, Cellular model, Feature
