| 平面图形在NURBS曲面上的映射 |
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| 引用本文： | 李学艺,王钊,连小珉.平面图形在NURBS曲面上的映射[J].计算机工程与应用,2009,45(1):7-9. |
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| 作者姓名： | 李学艺 王钊 连小珉 |
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| 作者单位： | 1. 清华大学,汽车工程系,北京,100084;山东科技大学,机械电子工程学院,山东,青岛,266510
2. 清华大学,汽车工程系,北京,100084 |
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| 摘 要： | 针对现有曲面图形映射方法实用性不强的缺陷,提出了一种NURBS曲面图形映射方法。基于曲面外形设计或选取适当的平面图形,求出平面图形在坐标平面内的极限位置,根据曲面上映射图形的位置和大小对NURBS曲面的节点向量和首末参数进行调整,将平面图形嵌入NURBS曲面参数域的相应位置,利用NURBS理论将平面图形从曲面参数域映射到曲面。验证实例表明,算法原理简单、性能稳定,具有较强的适应性和实用性。
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| 关 键 词： | NURBS曲面 映射 匹配 节点向量 参数域 |
| 收稿时间： | 2008-8-25 |
| 修稿时间： | 2008-10-14
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Graphic mapping on NURBS surface based on knot vector matching |
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| LI Xue-yi,WANG Zhao,LIAN Xiao-min.Graphic mapping on NURBS surface based on knot vector matching[J].Computer Engineering and Applications,2009,45(1):7-9. |
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| Authors: | LI Xue-yi WANG Zhao LIAN Xiao-min |
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| Affiliation: | LI Xue-yi1,2,WANG Zhao1,LIAN Xiao-min11.Depatment of Automotive Engineering,Tsinghua University,Beijing 100084,China 2.College of Mechanical , Electronic Engineering,Sh,ong University of Science &Technology,Qingdao,Sh,ong 266510,China |
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| Abstract: | Aiming at the poor practicability of existing surface graphic mapping methods,A new graphic mapping technique on a NURBS surface is presented.Based on the shape of the surface,a planar graph is designed or selected firstly,the extreme positions of the planar graph are then determined.According to the location and size of the final mapping graph on the NURBS surface,the knot vectors and limit parameters of the surface are modified to match the planar graph,then all the elements in the planar graph are insert... |
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| Keywords: | NURBS surface mapping matching knot vector parameter domain |
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