SURFACE FITTING FOR SCATTERED DATA

AND APPLICATION IN AUTOMOTIVE BODY

RECONSTRUCTION

Lan Fengchong   Chen Jiqing

(School of Automotive Engineering, Jilin University, Changchun 130022)

Lin Jianguo

(School of Engineering, University of Birmingham, Birmingham B15 2TT UK)

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: Fitting surface  Scattered data  NURBS  Interpolation  Approximation

CLC No: TP391

Received 20040829, received in revised form 20050107