A 6-DOF haptic interface and its applications in CAD
by Zhan Gao, Ian Gibson
International Journal of Computer Applications in Technology (IJCAT), Vol. 30, No. 3, 2007

Abstract: In this paper, we propose a new general 6-DOF haptic interface, which is able to provide both force and torque feedback to point clouds, NURBS curves and surfaces and rigid heterogeneous material virtual representations. A feature of this approach is the haptic cursor, which has a shape and size, instead of just a point. We also present two CAD applications based on that haptic interface; an experimental haptic sculpting system for B-spline surfaces and a haptic-based method to draw a NURBS curve upon a point-based model. By taking advantage of our haptic rendering techniques, various haptic sculpting tools are developed to facilitate sculpting B-spline surfaces, resulting in more intuitive virtual sculpting paradigms. To draw a NURBS curve upon a point-based model is normally a difficult problem. However, this problem can be solved with relative ease using our haptic interface.

Online publication date: Sat, 10-Nov-2007

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