物体の堅さを表現した2 次元形状の操作手法

As-Rigid-As-Possible Shape Manipulation

著者/Authors

五十嵐健夫	Takeo Igarashi	東京大学大学院情報理工学系研究科	The University of Tokyo
Tomer Moscovich	Tomer Moscovich	Brown University	Brown University
John F. Hughes	John F. Hughes	Brown University	Brown University

概要/Abstract

We present an interactive system that lets a user move and deform a two-dimensional shape without manually establishing a skeleton or freeform deformation (FFD) domain beforehand. The shape is represented by a triangle mesh and the user moves several vertices of the mesh as constrained handles. The system then computes the positions of the remaining free vertices by minimizing the distortion of each triangle. Our approach successfully conveys a sense of rigidity of the shape, which is difficult in space-warp approaches. With a multiple-point input device, even beginners can easily move, rotate, and deform shapes at will.

キーワード/Keywords

Graphics, Shape, Deformation, Two-handed