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Proceedings Paper

Imposing geometric constraints on virtual 3D objects within an immersive modeler
Author(s): Norikazu Hiraki; Kiyoshi Kiyokawa; Haruo Takemura; Naokazu Yokoya
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Paper Abstract

This paper describes an intuitive and efficient way to design not only 3D shapes but also their geometric constraints within an immersive modeler. The fundamental concept of the proposed method is based on our immersive modeler VLEGO II, which allows multiple users to create 3D virtual objects only by assembling simple 3D geometric shapes (shape primitives) like with real toy blocks. In our system, geometric constraints are presented as primitives (constraining primitives) like normal shape primitives, and the geometric constraints are imposed on virtual objects simply by assembling shape and constraining primitives. The system also provides flexible two-handed interaction to support intuitive and efficient manipulations of objects.

Paper Details

Date Published: 9 October 1998
PDF: 12 pages
Proc. SPIE 3517, Intelligent Systems in Design and Manufacturing, (9 October 1998); doi: 10.1117/12.326927
Show Author Affiliations
Norikazu Hiraki, Sony Co. (Japan)
Kiyoshi Kiyokawa, Nara Institute of Science and Technology (Japan)
Haruo Takemura, Nara Institute of Science and Technology (Japan)
Naokazu Yokoya, Nara Institute of Science and Technology (Japan)

Published in SPIE Proceedings Vol. 3517:
Intelligent Systems in Design and Manufacturing
Bhaskaran Gopalakrishnan; San Murugesan, Editor(s)

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