| SWEEP曲面的NURBS逼近 |
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| 引用本文： | 汪国平,孙家广,吴学礼. SWEEP曲面的NURBS逼近[J]. 计算机学报, 1998, 21(9): 844-849 |
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| 作者姓名： | 汪国平 孙家广 吴学礼 |
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| 作者单位： | 1. 清华大学计算机科学与技术系,北京,100084
2. 河北科技大学自动化系,石家庄,050054 |
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| 摘 要： | 提出了一种ＳＷＥＥＰ曲面用ＮＵＲＢＳ逼近的方法，对于截面线的定位，提出了一种定位方法，对于逼近误差控制，可转化为对插值曲线的误差估计。本文算法已在具有自主版权的Ｇｅｍｓ５．０中实现。
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| 关 键 词： | 几何造型 NURBS曲面 SWEEP曲面 逼近 CAD |
THE NURBS APPROXIMATION OF SWEEP SURFACES |
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| WANG Guo-Ping,SUN Jia-guang,WU Xue-li. THE NURBS APPROXIMATION OF SWEEP SURFACES[J]. Chinese Journal of Computers, 1998, 21(9): 844-849 |
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| Authors: | WANG Guo-Ping SUN Jia-guang WU Xue-li |
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| Abstract: | A method for approximating SWEEP surfaces via NURBS is presented. For the orientation of the cross-section curves in generating SWEEP surfaces, a new orientation frame is derived-The approximation error bound of SWEEP surfaces can be controlled by error bound of the interpolating curves. The algorithms are implemented in Gems5.O. |
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| Keywords: | :Geometry modeling NURBS surface SWEEP surface approximation moving frame |
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