The Community for Technology Leaders
Virtual Reality Annual International Symposium (1993)
Seattle, WA, USA
Sept. 18, 1993 to Sept. 22, 1993
ISBN: 0-7803-1363-1
pp: 492-498
A. Chanezon , ATR Commun. Syst. Res. Lab., Kyoto, Japan
H. Takemura , ATR Commun. Syst. Res. Lab., Kyoto, Japan
Y. Kitamura , ATR Commun. Syst. Res. Lab., Kyoto, Japan
F. Kishino , ATR Commun. Syst. Res. Lab., Kyoto, Japan
A method to assist an operator to place an object on a surface in a virtual environment without any force feed-back tool is described and evaluated. The method used is to apply an attractive power to two faces that are likely to be attached. The system checks the distance of these faces and assists the operator by attaching two faces whose distance is less than a certain threshold. The real time calculation is achieved by limiting the number of faces that can be attached. Using this interface, the operator can move an object in some predefined planes. An experiment shows that the method is effective when the operator is requested to precisely place a virtual object in a certain location.
virtual object, operator assistant, virtual space, virtual environment, attractive power, real time calculation, interface, predefined planes

H. Takemura, A. Chanezon, Y. Kitamura and F. Kishino, "A study of an operator assistant for virtual space," IEEE 1993 Symposium on Research Frontiers in Virtual Reality(VRAIS), San Jose, CA, USA, 1993, pp. 492-498.
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