摘要
本文主要介绍FSMTS中所采用的Sweeping体素的离散化原理。首先讨论了体素离散化的“拓扑有效性”和精度要求,并在此基础上提出了依据主曲率控制离散点密度的方法。其次研究了离散化过程中的三种活动标架,提出了在扫动过程中如何描述截面变化规律的各种策略。最后推导出Sweeping体的合法性检验判据。
This papier focuses on the research of faceting principles for the sweeping solids used in the Feature-Solid Modeling Tool System(FSMTS). First, 'topological validity' and precision requirements of a faceting process are discussed. Then, three kinds of moving frames used by the generalized sweeping methods are analysed, and strategies to describe the variant regularities of a moving sectional contour are proposed as well. Finally, validity verification criteria of sweeping solids are proposed.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
1992年第3期28-35,共8页
Journal of Computer-Aided Design & Computer Graphics
