| 特征设计中有向约束机制及算法研究 |
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| 引用本文： | 程成,孟祥旭. 特征设计中有向约束机制及算法研究[J]. 计算机辅助设计与图形学学报, 2000, 12(10): 765-771 |
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| 作者姓名： | 程成 孟祥旭 |
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| 作者单位： | 1. 中国科学院软件研究所,北京,100080
2. 山东大学计算机科学系,济南,250100 |
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| 基金项目： | 国家“八六三”高技术研究发展计划!(86 3 -5 11-942 -0 12，86 3 -5 11-942 -0 2 5 )，山东省青年科学家奖励基金资助 |
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| 摘 要： | 几何约束求解是基于特征设计系统的核心算法之一，由于目前沿用的是非特征设计环境下的约束机制，采用的约束方法没有充分利用特征设计的特点，约束难于管理，所得约束解往往背离设计初衷，约束算法复杂度高，文中提出一种基于自由度分析的有向约束实现机制及相关算法，算法时间复杂度低，提高了三维参数化设计系统的交互性能。
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| 关 键 词： | 特征设计 有向约束机制 算法 CAD CAM |
Research on Directed Constraint Mechanism and Algorithm for Feature-Based Design |
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| CHENG Cheng,MENG Xiang-Xu. Research on Directed Constraint Mechanism and Algorithm for Feature-Based Design[J]. Journal of Computer-Aided Design & Computer Graphics, 2000, 12(10): 765-771 |
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| Authors: | CHENG Cheng MENG Xiang-Xu |
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| Abstract: | Geometric constraint satisfaction is one of the kernel algorithms in feature based design system. This article puts forward a constraint mechanism based on degree of freedom analysis and makes the full use of characteristics of feature based design to facilitate the constraint management and generate the solution reflecting the intention of designer. The new algorithm is efficient enough to meet the needs of parametric 3D interactive design. |
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| Keywords: | parametric design geometric constraint feature-based design degree of freedom analysis |
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