A 6-DOF haptic interface and its applications in CAD

  • Authors:
  • Zhan Gao;Ian Gibson

  • Affiliations:
  • Department of Mechanical Engineering, University of Hong Kong, Hong Kong, P.R. China.;Department of Mechanical Engineering, National University of Singapore, Singapore

  • Venue:
  • International Journal of Computer Applications in Technology
  • Year:
  • 2007

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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.