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首页> 外文会议>International Conference on Computational Science and Its Applications - ICCSA 2003 Pt.3 May 18-21, 2003 Montreal, Canada >Digital Styling for Designers: 3D Plane-Symmetric Freeform Curve Creation Using Sketch Interface
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Digital Styling for Designers: 3D Plane-Symmetric Freeform Curve Creation Using Sketch Interface

机译：设计人员的数字样式：使用素描界面创建3D平面对称自由曲线

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摘要

The 3D evaluation of design shapes is an essential step in product styling. Thus, physical models of final-stage design alternatives have been made in tradition, and recently the effort to substitute them with CAD models has been tried. Whereas, designers in the early phase of the design-development stage where almost design concepts are determined, still use raster-type 2D graphics S/Ws. It causes not only the difficulty of evaluating 3D shapes but also the serious severance of a digital dis-connectivity with downstream processes. This paper presents a method of directly constructing 3D plane-symmetric freeform curves with a sketch interface, as the first step of developing a sketch-based 3D-freeform shape creation S/W for designers. A curve drawn by the designer within the see-through box in an arbitrary perspective view, is simultaneously converted to a real space curve without the 3D ambiguity problem except only special cases to be specified.
机译：设计形状的3D评估是产品样式设计中必不可少的步骤。因此，传统上已经完成了最后阶段设计替代方案的物理模型，最近尝试了用CAD模型替代它们的工作。鉴于设计师在设计开发阶段的早期阶段（几乎确定了所有设计概念）仍然使用光栅型2D图形S / W。这不仅导致评估3D形状的困难，而且严重破坏了与下游工艺的数字断开性。本文提出了一种通过草图界面直接构建3D平面对称自由形状曲线的方法，这是为设计师开发基于草图的3D自由形状创建软件的第一步。设计人员在透视框中以任意透视图绘制的曲线将同时转换为真实空间曲线，而不会出现3D模糊性问题，除非仅指定特殊情况。

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