| 二维参数化CAD中的过约束及欠约束检查策略与实现 |
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| 引用本文： | 刘军 欧宗瑛. 二维参数化CAD中的过约束及欠约束检查策略与实现[J]. 大连理工大学学报, 1998, 38(5): 539-543 |
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| 作者姓名： | 刘军 欧宗瑛 |
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| 作者单位： | 大连理工大学机械工程系(刘军)，北京中科院系统所(欧宗瑛) |
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| 基金项目： | 国家自然科学基金,博士后科学基金 |
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| 摘 要： | 参数化ＣＡＤ技术是当今ＣＡＤ领域的研究热点之一，其关键任务就是如何处理几何实体间的几何约束，约束冗余性检查是其主要工作内容之一。采用基于约束驱动的几何推理和自由度计算方法，设计了约束检查策略与算法，解决了过约束与欠约束检查问题。
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| 关 键 词： | 自由度 参数化设计 过约束 欠约束 CAD |
Method and implementation of checking over constraint & under constraint in 2D parametric CAD |
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| Liu Jun,Ou Zongying. Method and implementation of checking over constraint & under constraint in 2D parametric CAD[J]. Journal of Dalian University of Technology, 1998, 38(5): 539-543 |
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| Authors: | Liu Jun Ou Zongying |
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| Abstract: | The parametric CAD system has been becoming a researching focus. An important task of parametric CAD is to deal with the geometry constraints. The checking of the redundancy of constraint is one of the key working procedures. This paper introduces a method which uses geometry reasoning & degrees of freedom calculating based on constraint driven to solve the problem of checking over constraint & under constraint. |
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| Keywords: | computer aided design degrees of freedom/parametric CAD geometry reasoning over constraint under constraint |
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