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NURBS Surface Reconstruction in Reverse Engineering(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2004年04期
Page:
390-394
Research Field:
Publishing date:

Info

Title:
NURBS Surface Reconstruction in Reverse Engineering
Author(s):
CI Rui meiLI Dong bo
School of Mechanical Engineering,NUST,Nanjing 210094,China
Keywords:
reverse eng ineering non-uniform rat ional B-spline surface interpolation
PACS:
TP391.7
DOI:
-
Abstract:
A procedure is proposed that reconst ructs Non-uniform Rat ional B-Spline ( NU RBS) surface w ith features of measured data. With characteristics of measured points taken into considerat ion, topolog y information can be automatically ext racted and it simplifies previous data process. The method of NURBS surface interpolat ion is applied for reconst ruct ion. With nonuniform data points, a method of accumulat ing chord length is presented to create non-uniform knot s vector and guarantees the precision of the surface. An optimal algorithm for B-spline evaluat ion subst itutes temporary polynomial expressions for the iterat ive applicat ion and enhances the comput ing eff iciency.

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Last Update: 2013-03-11