摘要
针对传统CAD不能提供材料等非几何信息,且无法实现异种材料物体间的布尔运算,提出了一种可应用于构造异种材料物体的特征布尔运算,包含了由材料决定的布尔差和交运算及新的布尔复形并运算,由特征合并和特征抽取两步完成;并给出了该运算的几何实现、实现算法及实例·
Traditional CAD Boolean operations are unable to solve the Boolean operation of heterogeneous objects, due to existence of non-geometrical information of the materials. Feature Boolean operations are proposed to construct heterogeneous objects in the paper. Feature Boolean operations have two steps, merging and extracting, and the operations include a material-dominant Boolean subtraction, an intersection operation and a new Boolean complex-union operation of the modeling which is assembled by heterogeneous objects. Finally, the geometrical implementation, graph examples, and its calculating methods are given.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2005年第7期1575-1580,共6页
Journal of Computer-Aided Design & Computer Graphics
基金
河北省教育厅科技规划基金项目(2001143)
关键词
异种材料体造型
特征布尔运算
特征造型
heterogeneous modeling
feature Boolean operation
feature modeling
