3D-DDM:三次元B-Spline自由曲面の直接変形手法

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タイトル別名
  • 3D-DDM: A3 Dimensional-Direct Deformation Method of B-Spline Surfaces
  • 3D-DDM:3次元B-Spline自由曲面の直接変形手法
  • 3D DDM 3ジゲン B Spline ジユウ キョクメン ノ チョクセツ

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This paper presents 3D-DDM (3 Dimensional-Direct Deformation Method), which is a new direct deformation method of free-formed B-Spline surfaces. The method allows users to “push/twist” surfaces directly with the 3D cursor and it provides various kinds of deformations that are area-controllable. The basic idea of 3DDDM is rearranging, creating, and deleting form representing parameters from the “pushing” action of a user to obtain appropriate deformations. The method is combined with an input device with force feedback, which the authors have developed as well, into a virtual surface modeler with haptic feedback.

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