3D Sketching with Fully Free Form Deformation Features (δ-F4) for Aesthetic Design

by: V. Cheutet, C.E. Catalano, J.P. Pernot, B. Falcidieno, F. Giannini, (Istituto di Matematica Applicata e Tecnologie Informatiche - CNR, Genova, Italy), C. Leon (Laboratory 3S - Integrated Design Project, Grenoble, France) 4 Oct 2006 | 16 views
Year: 2004 | Document Type: PAPER | File Format: pdf | Language: uk
3D Sketching with Fully Free Form Deformation Features (
Eurographics Workshop on Sketch-Based Interfaces and Modeling - Grenoble, France, August 30-31, 2004.


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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