• CN:11-2187/TH
  • ISSN:0577-6686

›› 2005, Vol. 41 ›› Issue (11): 213-216.

• 论文 • 上一篇    下一篇

散乱点曲面拟合及在车身曲面中的应用

兰凤崇;陈吉清;林建国   

  1. 吉林大学汽车工程学院;伯明翰大学工程学院
  • 发布日期:2005-11-15

SURFACE FITTING FOR SCATTERED DATA AND APPLICATION IN AUTOMOTIVE BODY RECONSTRUCTION

Lan Fengchong; Chen Jiqing;Lin Jianguo   

  1. School of Automotive Engineering, Jilin University School of Engineering, University of Birmingham
  • Published:2005-11-15

摘要: 提出了一种基于NURBS 曲面的散乱点参数曲面拟合方法,可以对散乱点云数据进行插值或基于最小二乘意义下的光顺拟合。完成了软件开发并在汽车车身外形曲面设计中得到了应用。NURBS曲面的优良品质保证了这种方法计算稳定,生成的曲面满足光顺要求。

关键词: NURBS, 逼近, 拟合曲面, 曲面插值, 散乱数据

Abstract: A parametric surface fitting method based is presented on NURBS, which enables scattered points to be used for interpolation and approximation and then to generate smooth surfaces with the least square method. The algorithms and relevant software derived and developed are successfully applied in automotive body outer surface design. The method ensures the calculation stability and smooth surface quality.

Key words: Approximation, Fitting surface, Interpolation, NURBS, Scattered data

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