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Article: A new approach for direct manipulation of free-form curve

TitleA new approach for direct manipulation of free-form curve
Authors
Issue Date1998
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CGF
Citation
Computer Graphics Forum, 1998, v. 17 n. 3, p. C327-C334 How to Cite?
AbstractThere is an increasing demand for more intuitive methods for creating and modifying free-form curves and surfaces in CAD modeling systems. The methods should be based not only on the change of the mathematical parameters, such as control points, knots, and weights, but also on the user's specified constraints and shapes. This paper presents a new approach for directly manipulating the shape of a free-form curve, leading to a better control of the curve deformation and a more intuitive CAD modeling interface. The user's intended deformation of a curve is automatically converted into the modification of the corresponding NURBS control points and knot sequence of the curve. The algorithm for this approach includes curve elevation, knot refinement, control point repositioning, and knot removal. Several examples shown in this paper demonstrate that the proposed method can be used to deform a NURBS curve into the desired shape. Currently, the algorithm concentrates on the purely geometric consideration. Further work will include the effect of material properties.
Persistent Identifierhttp://hdl.handle.net/10722/75551
ISSN
2015 Impact Factor: 1.542
2015 SCImago Journal Rankings: 0.960
References

 

DC FieldValueLanguage
dc.contributor.authorZheng, JMen_HK
dc.contributor.authorChan, KWen_HK
dc.contributor.authorGibson, Ien_HK
dc.date.accessioned2010-09-06T07:12:17Z-
dc.date.available2010-09-06T07:12:17Z-
dc.date.issued1998en_HK
dc.identifier.citationComputer Graphics Forum, 1998, v. 17 n. 3, p. C327-C334en_HK
dc.identifier.issn0167-7055en_HK
dc.identifier.urihttp://hdl.handle.net/10722/75551-
dc.description.abstractThere is an increasing demand for more intuitive methods for creating and modifying free-form curves and surfaces in CAD modeling systems. The methods should be based not only on the change of the mathematical parameters, such as control points, knots, and weights, but also on the user's specified constraints and shapes. This paper presents a new approach for directly manipulating the shape of a free-form curve, leading to a better control of the curve deformation and a more intuitive CAD modeling interface. The user's intended deformation of a curve is automatically converted into the modification of the corresponding NURBS control points and knot sequence of the curve. The algorithm for this approach includes curve elevation, knot refinement, control point repositioning, and knot removal. Several examples shown in this paper demonstrate that the proposed method can be used to deform a NURBS curve into the desired shape. Currently, the algorithm concentrates on the purely geometric consideration. Further work will include the effect of material properties.en_HK
dc.languageengen_HK
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CGFen_HK
dc.relation.ispartofComputer Graphics Forumen_HK
dc.titleA new approach for direct manipulation of free-form curveen_HK
dc.typeArticleen_HK
dc.identifier.emailChan, KW: akwchan@hkucc.hku.hken_HK
dc.identifier.emailGibson, I: igibson@hkucc.hku.hk-
dc.identifier.authorityChan, KW=rp00079en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/1467-8659.00279-
dc.identifier.scopuseid_2-s2.0-0000874577en_HK
dc.identifier.hkuros41074en_HK
dc.identifier.hkuros59569-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0000874577&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume17en_HK
dc.identifier.issue3en_HK
dc.identifier.spageC327en_HK
dc.identifier.epageC334en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridZheng, JM=36627820800en_HK
dc.identifier.scopusauthoridChan, KW=35188517700en_HK
dc.identifier.scopusauthoridGibson, I=15831816500en_HK

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