3D sketching with fully free form deformation features (δ-F4) for aesthetic design
3D sketching with fully free form deformation features (δ-F4) for aesthetic design
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具有完全自由形状变形特征 (δ-F4) 的 3D 草图，用于美学设计
DOI：
10.2312/sbm/sbm04/009-018
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
J. Léon
中科院分区：
文献类型：
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作者：
Vincent Cheutet;C. Catalano;J. Pernot;B. Falcidieno;F. Giannini;J. Léon
本文讨论了设计师的活动，特别是设计师如何表达一个对象的形状在2D草图通过字符线。目前在商业CAS/CAD系统中可用于操纵数字模型的工具仍然不足以支持设计。在本文中，我们介绍了所谓的完全自由形式变形特征（δ-F4），能够考虑到面向曲线的造型师的工作方式。自由形式的表面变形方法和基于特征的方法的优点被合并，以定义高级建模实体，允许通过有限数量的直观参数直接操纵表面。此外，提出了一种δ-F4分类，允许根据其语义快速访问所需的形状。所提出的方法与一些例子说明。
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 (δ-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 δ-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.