| 细分曲面造型中的框架级布尔运算 |
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| 引用本文： | 区士颀,宾鸿赞.细分曲面造型中的框架级布尔运算[J].华中科技大学学报(自然科学版),2005,33(5):61-63. |
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| 作者姓名： | 区士颀 宾鸿赞 |
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| 作者单位： | 华中科技大学,机械科学与工程学院,湖北,武汉,430074 |
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| 摘 要： | 提出一种对实体初始三角网格进行操作的布尔运算，称之为框架级布尔运算．通过该运算可以构造出一个新实体的初始网格，然后采用Loop细分算法完成该实体的光滑曲面造型．在初始三角网格的求交过程中使用注册机制对所得交点的拓扑约束关系进行分类推理，从而对浮点数值容差导致的失误进行了有效控制和纠错．
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| 关 键 词： | 细分曲面 框架级布尔运算 交点注册机制 |
| 文章编号： | 1671-4512(2005)05-0061-03 |
| 修稿时间： | 2004年5月14日 |
Frame Boolean operation in surface subdivision |
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| Ou Shiqi,Bin Hongzan.Frame Boolean operation in surface subdivision[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2005,33(5):61-63. |
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| Authors: | Ou Shiqi Bin Hongzan |
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| Institution: | Ou Shiqi Bin HongzanOu Shiqi Doctoral candidate, College of Mech. Sci. & Eng., Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | A kind of Boolean operation, which handled the original meshes of two objects, was presented. This operation can be used to construct the control mesh of a new solid object, and the loop subdivision method will create its smooth surface. In the process of the mesh intersection, a kind of mechanism of registering the intersection points was introduced to classify their topological relationship. This mechanism can be used to control and correct the errors induced by float numerical faults. |
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| Keywords: | subdivision surface frame Boolean operation registering mechanism intersection points |
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