Ernie Smethurst wrote:
Code:
PositionAttitudeTransform *rotate_planetFive = new PositionAttitudeTransform;
rotate_planetFive->addChild( geode_planetFive );
rotate_planetFive->setUpdateCallback( new
AnimationPathCallback(osg::Vec3(0,0,0), osg::Z_AXIS, inDegrees(45.0f)) ); //ROTATE
AROUND THE SUN
Vec3 central_point = primitive_planetFive->getCenter(); //GET THE CURRENT
LOCATION OF THE CIRCLE WHILST IS ROTATES
rotate_planetFive->setUpdateCallback( new
AnimationPathCallback(osg::Vec3(central_point), osg::Z_AXIS, inDegrees(45.0f)) );
But that doesnt work, it only applies the second setUpdateCallback() when i
need both to run.
Sorry if it seems I am posting excessively, I just get a little bit obsessive
when I cant get the coding correct, Apologies.
Of course it does. You replace your first update callback on one
transform with a second. As I said before, you need three transforms
here. A rotate, followed by a translate, followed by another rotate.
Since you're using PAT's, one of them can handle two transforms (one
rotate and one translate, which is what you have now), but you'll need
a second transform to do the other rotation.
As I said in my previous message, in a scene graph like OSG, you combine
rotations by using the graph's hierarchy. What you should have is your
planet's geometry as a child of a PAT doing a rotation, which itself is
a child of another PAT doing the other rotation and the translation.
The final PAT should be attached to the root of the scene.
--"J"
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