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Journal of Zhejiang University SCIENCE A

ISSN 1673-565X(Print), 1862-1775(Online), Monthly

GFFD: Generalized free-form deformation with scalar fields

Abstract: The novel free-form deformation (FFD) technique presented in the paper uses scalar fields defined by skeletons with arbitrary topology. The technique embeds objects into the scalar field by assigning a field value to each point of the objects. When the space of the skeleton is changed, the distribution of the scalar field changes accordingly, which implicitly defines a deformation of the space. The generality of skeletons assures that the technique can freely define deformable regions to produce a broader range of shape deformations.

Key words: FFD, Computer aided geometric design (CAGD), Computer aided design (CAD), Scalar field


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DOI:

10.1631/jzus.2003.0623

CLC number:

TP391

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Received:

2002-09-15

Revision Accepted:

2002-12-10

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