Bob Youmans wrote:
Hi,
regarding matrixmanipulators, almost all the example have TrackBallManipulator
as the view's manipulator, separater from the cameras. So, if i have an update
callback on a camera to set its (and its slave) position and orientation, how
does that interact with a trackballmanipulator.
Typically, you don't want to have both a manipulator and an update
callback controlling the camera.
can i remove it from the view and add it back? can i easily toggle on/off the
trackballmanipulator, so i can control programmatic vs user control of these
master/slave cameras? that would be really nice.
If you look at the osgviewer source, there's an example of how to switch
between manipulators on the fly using a KeySwitchMatrixManipulator.
Instead of an update callback, you can also just write a simple matrix
manipulator to control the camera in the way you described earlier.
Then you'll be able to switch between them pretty easily.
--"J"
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