3D Sketching with Fully Free Form Deformation Features (δ-F4) for Aesthetic Design
Abstract/Summary
This paper addresses the designers’ activity and in particular the way designers express an object shape in 2D sketches through character lines. The tools currently available in commercial CAS/CAD systems to manipulate the digital models are still not sufficiently suited to support design.
In this paper, we introduce the so-called Fully Free Form Deformation Features (d-F4), able to take into account the curve-oriented stylists’ way of working. Both the advantages of a free form surfaces deformation method and a feature-based approach are merged to define highlevel modelling entities allowing for a direct manipulation of surfaces through a restricted number of intuitive parameters.
In addition, a d-F4 classification is proposed to permit a fast access to the desired shape according to its semantics. The proposed approach is illustrated with some examples.
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