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Poisson Based Reuse of Freeform Features

[+] Author Affiliations
Wei Zhao, Shuming Gao, Yusheng Liu

Zhejiang University, Hangzhou, China

Paper No. DETC2006-99281, pp. 563-573; 11 pages
doi:10.1115/DETC2006-99281
From:
  • ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 1: 32nd Design Automation Conference, Parts A and B
  • Philadelphia, Pennsylvania, USA, September 10–13, 2006
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4255-X | eISBN: 0-7918-3784-X
  • Copyright © 2006 by ASME

abstract

Due to the complexity, reuse of freeform features represented by B-spline is still an open issue. Based on Poisson equation, a novel approach to the reuse of freeform features represented by uniform rational B-spline (URBS) is proposed in this paper. In order to effectively support reuse, a new representation of freeform features is put forwarded, which is based on a new property about the odd URBS and consists of the principal control points, geometry context and basic surface of the feature. Based on the new representation, reuse of freeform features is achieved by updating the principal control points on the pasted area of the target surface using Poisson equation. The approach is implemented and some examples are given.

Copyright © 2006 by ASME

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