Yes, I've done this as well, pretty easy to write, just allows you to position the camera in altitude and azimuth while maintaining an up vector. I'd say it's more common in sim apps than CAD apps, though. I see someone else has posted code for this. Paul Martz Skew Matrix Software LLC http://www.skew-matrix.com <http://www.skew-matrix.com/> +1 303 859 9466
_____ From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Richard Baron Penman Sent: Wednesday, April 22, 2009 12:44 AM To: OpenSceneGraph Users Subject: [osg-users] CAD style rotation hello, I am after an osgManipulator with CAD style rotation. In a typical CAD program the rotation keeps the roll fixed and orbits around the centre of the screen. In contrast the TrackballManipulator allows the roll to change and rotates around the origin. Has anyone come across code that implements this type of rotation? thanks, Richard
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