Modification of a NURBS curve with nose features

Authors
Citation
Wc. Lu et Jm. Huang, Modification of a NURBS curve with nose features, COMP INTEGR, 11(4), 1998, pp. 253-265
Citations number
11
Categorie Soggetti
Engineering Management /General
Journal title
COMPUTER INTEGRATED MANUFACTURING SYSTEMS
ISSN journal
09515240 → ACNP
Volume
11
Issue
4
Year of publication
1998
Pages
253 - 265
Database
ISI
SICI code
0951-5240(199810)11:4<253:MOANCW>2.0.ZU;2-0
Abstract
This paper proposes a methodology to modify the shape of a NURBS curve by m oving the nose points of each curve segment. To perform the modification, t he algorithms of evaluating control point movements and weight changes are first introduced, In weight changes, the derived equation for modifying a c urve segment is viewed as an equilibrium force system, acting on the target nose point and yielding the required nose point displacement, which provid es the foundation for the algorithm to attain the required curve modificati on. To raise the precision and efficiency of curve modification, a method o f constraining the joining points and the nose points is proposed. In addit ion, a method is presented to reach an optimal solution to curve modificati on, and is verified in the implementation. (C) 1998 Elsevier Science Ltd. A ll rights reserved.