J.M. Hollerbach, E. Cohen, E. Thompson, W.B. Freier, D.E. Johnson, A. Nahvi, D.D. Nelson, T.V. Thompson II, and S.C. Jacobsen. Haptic interfacing for virtual prototyping of mechanical CAD designs. In ASME Design for Manufacturing Symposium, 1997.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....environment in a much more direct and intuitive way. Since in this approach force feedback is essential in the design process, we call it Haptic Aided Design or HAD. Some previous research has made contributions toward incorporating force feedback into traditional CAD systems. For example, [1] describes a haptic interface coupled with CAD software, allowing the operator to both see and feel geometrical shapes and dynamics forces. In the work described by [2] the author formulated inverse kinematics and inverse dynamics equations involved in simulating open chain mechanisms and single ....

Hollerbach, J.M., E. Cohen, W. Thompson, R. Freier, D. Johnson, A. Nahvi, D. Nelson, and T.V.Thomson II, "Haptic Interfacing for Virtual Prototyping of Mechanical CAD Designs", Proceedings of 1997.

....requires an increase in mesh complexity. Normally, a benefit of texture mapping is that it allows increased visual detail without added geometric detail; we would like to maintain that advantage. 3 System overview Our 3D paint system is built upon a system for virtual prototyping of CAD models [11]. A basic functionality provided by the virtual prototyping system is tracing along NURBS models using a haptic interface [12] We can use this functionality as a basis for directly painting textures onto a model. 3.1 Hardware Figure 3: The paint system in use. A haptic interface allows 3D ....

....mapping; we then find the point on the model by evaluating the surface at that parametric point. Surface evaluation on a NURBS surface can be a relatively expensive operation. Fortunately, we have invested time improving the performance of surface evaluation for previous haptic rendering work [11,12]. However, the number of surface evaluations still proved to be a bottleneck in our initial simple approach of testing every texel in a large block for Euclidean distance to the brush center. Instead, we have developed an approach for finding the perimeter of the brush in texture space and then ....

Hollerbach, J.M et al, "Haptic interfacing for virtual prototyping of mechanical CAD designs," ASME Design for Manufacturing Symposium, (Sacramento, CA), Sept. 14-17,

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J.M. Hollerbach, E. Cohen, E. Thompson, W.B. Freier, D.E. Johnson, A. Nahvi, D.D. Nelson, T.V. Thompson II, and S.C. Jacobsen. Haptic interfacing for virtual prototyping of mechanical CAD designs. In ASME Design for Manufacturing Symposium, 1997.

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J. Hollerbach, E. Cohen, W. Thompson, R. Freier, D. Johnson, A. Nahvi, D. Nelson, and T. Thompson II. Haptic interfacing for virtual prototyping of mechanical CAD designs. CDROM Proc. of ASME Design for Manufacturing Symposium, 1997.

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