On 9/19/2011 10:46 AM, Martin Haffner wrote:
Hi,
I have a wheel model (an .obj) that needs an DOF in the middle of the wheel (to
make the wheel spin). I know the position of the DOF and I know the 3 axis of
the DOF (x axis goes up, y goes in the depth and z to the left. So basically
just the normal osg coordinate system rotated around y by 90 Degrees.).
Now I want to create an osgSim::DOFTransform (
http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a00182.html
) to describe this DOF. Unfortunately I do not exactly what I have to do now.
The DOFTransform neither has a setPosition() nor a setAxis() method.
Do I have to use setPutMatrix()? If yes: How do I create this matrix? Is it
just M = RotationY(90) * Translation(DOFPosition)?
Do I also need to set the Inverse PutMatrix?
I don't know what you need to do in your specific case, but perhaps the
OpenFlight spec would describe the operation of the DOFTransform a bit, as
DOFTransform was designed to support OpenFlight DOF records:
http://www.presagis.com/products_services/standards/openflight/more/openflight_specifications/
-Paul
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