摘要
几何约束满足是参数化设计中的中心问题 .研究了陈述和构造统一的约束满足策略 ,通过将冗余约束转化为形状自由度的方法解决了构造序列的约束闭环问题 ,采用剪枝和凝聚相结合的策略实现了欠约束和完备约束系统的分解 ,并在参数化设计与绘图系统 MDS 4.0上实现 .
Solving geometric constraint system is the central issue of parametric design. The strategy with a parametric design capability based on the combination of declarative and constructive constraints is described in this paper. The closed loop of constraints of constructive sequence is solved by changing the redundant constraints to shape degree of freedom, and the clipping and reducing operations are used to decompose under and fully constrained system. And it has been implemented in a CAD system of MDS 4.0.
出处
《计算机研究与发展》
EI
CSCD
北大核心
2000年第10期1233-1239,共7页
Journal of Computer Research and Development
基金
国家自然科学基金!(项目编号 6 990 2 0 0 4)
国"八六三"高技术研究发展计划基金!(项目编号 86 3 -5 11-82 0 -0 17)
关键词
参数化设计
几何约束满足
特征造型
geometric constraint, degree of freedom, degree of constraint, rigid body, deformable body
