ygCAVEViewer derived from ygTransform

Description: establishes a view point for the CAVE library rendering

notes:
Category: Foundation
Author: Dave Pape
11/01/01
Revision: 05/01/03 Alex Hill - added setUser() method to use another user perspective

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constructor ygCAVEViewer

method reset

method app

0.1 get user navigation matrix
0.2 update navigation data
0.3 get user head matrix
0.4 update head sensor
0.5 get navigated head position
1 get CAVE head position
2 get CAVE head orientation
3 set the position and orientation of the transform

method setUser