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あぁかがさざただなはばぱまやゃらわゎんいぃきぎしじちぢにひびぴみりうぅくぐすずつづっぬふぶぷむゆゅるえぇけげせぜてでねへべぺめれおぉこごそぞとどのほぼぽもよょろを

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Complex CAD surface shape design using semantic features

Fengbei Cheng,Zhenyu Liu,Guifang Duan,Chan Qiu,Bing Yi,Jianrong Tan 대한기계학회 2014 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.28 No.7
To a large extent, the success of the product shape design depends on whether the geometric modeling systems can satisfy more andmore complicated design demands in the engineering field. This paper proposes a shape design method based on semantic features forcomplex CAD surface. By the proposed method, we can easily meet the complicated design requirements, since the semantic can effectivelyrepresent the design intent. We discussed three aspects in shape design using semantic features, which are semantic design demandsof the target surface, geometric constraints in accordance with semantic features, and surface shape deformation under the geometricconstraints, respectively. The basic semantic features of geometric models drive the deformation of the target surface shape bychanging the related constraint, and the desirable features are added to the CAD surface shape. The examples of the car shape design arepresented to verify the effectives of our method.