NURBS曲面の力覚提示と精度(<特集>ハプティックインタフェース)

概要

論文の詳細を見る
Haptic display is a very powerful tool for CAD/CAM system. It enables the users to define and modify the shape of models intuitively and directly. In a CAD/CAM system, shape is expressed by a surface model or a solid model. Nowadays, NURBS surface has been commonly adopted as expression of shape in a CAD/CAM system, because it can express typical model such as Bezeir, B-spline, or conic. It has unstableness for calculation and heavy calculating load, because of NURBS has rational expressions. The purpose of this research is to find how to display NURBS surfaces stably by haptic sensation. For that purpose, this paper treats the interference between a NURBS surface and a point. The stable algorithm for NURBS is described and implemented in the experimental system. Finally, the accuracy of the displayed surface with the experimental system is described.
日本バーチャルリアリティ学会の論文
1998-10-30