DocumentCode :
1680414
Title :
Constrained 3D navigation with 2D controllers
Author :
Hanson, Andrew J. ; Wernert, Eric A.
Author_Institution :
Dept. of Comput. Sci., Indiana Univ., Bloomington, IN, USA
fYear :
1997
Firstpage :
175
Lastpage :
182
Abstract :
Navigation through 3D spaces is required in many interactive graphics and virtual reality applications. The authors consider the subclass of situations in which a 2D device such as a mouse controls smooth movements among viewpoints for a "through the screen" display of a 3D world. Frequently, there is a poor match between the goal of such a navigation activity, the control device, and the skills of the average user. They propose a unified mathematical framework for incorporating context-dependent constraints into the generalized viewpoint generation problem. These designer-supplied constraint modes provide a middle ground between the triviality of a single camera animation path and the confusing excess freedom of common unconstrained control paradigms. They illustrate the approach with a variety of examples, including terrain models, interior architectural spaces, and complex molecules.
Keywords :
virtual reality; 2D controllers; 2D device; 3D world display; complex molecules; constrained 3D navigation; context-dependent constraints; controls smooth movements; designer-supplied constraint modes; interactive graphics; interior architectural spaces; mouse; terrain models; unified mathematical framework; viewpoints; virtual reality; Animation; Application software; Cameras; Computer graphics; Control systems; Interpolation; Layout; Mice; Navigation; Virtual reality;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Visualization '97., Proceedings
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-8186-8262-0
Type :
conf
DOI :
10.1109/VISUAL.1997.663876
Filename :
663876
Link To Document :
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