| 提高网格逼近精度的一种新方法 |
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| 引用本文： | 黄雪梅,李成刚,王平江.提高网格逼近精度的一种新方法[J].华中科技大学学报(自然科学版),1999,27(4):62-64. |
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| 作者姓名： | 黄雪梅 李成刚 王平江 |
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| 作者单位： | 华中理工大学机械科学与工程学院 |
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| 摘 要： | 提出了一种空间三角形网格优化算法，该算法分为两部分：三角形网格顶点位置优化和局部优化．三角形网格顶点位置的优化方法是应用线性最小二乘法，通过调节网格顶点位置，提高网格逼近散乱点的精度．然后对于没有满足逼近精度的三角片，进行局部优化，即将该三角片细分，直至满足精度要求．该算法有效地提高了三角形网格对散乱点的逼近精度．
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| 关 键 词： | 网格优化 散乱数据 反求工程 |
| 修稿时间： | 1998-09-17. |
A New Method for Improving Mesh of Approximating Accuracy |
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| Huang Xuemei,Li Chenggang,Wang Pingjiang.A New Method for Improving Mesh of Approximating Accuracy[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1999,27(4):62-64. |
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| Authors: | Huang Xuemei Li Chenggang Wang Pingjiang |
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| Abstract: | Mesh
optimization algorithm is presented. The algorithm is composed of two parts: the vertices
optimization and splitting the triangle in local. In order to improve the accuracy of approximation,
the vertices are adjusted through least square method. If there are some triangles don't satisfied
the accuracy, they will be split until they satisfy. The algorithm can make the mesh fit the data well
and improve the accuracy of approximation. |
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| Keywords: | mesh optimization scattered data reverse engineering |
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