Hi guys,
I want to have the coordinates of the mouse in Object
coord. sys. (Coordinate System) in my statuse bar.
I've used the osgUtil::SceneView,
osgGA::KeySwitchMatrixManipulator and
osgGA::TrackballManipulator. I've used
sceneView->projectWindowIntoObject( osg::Vec3(e->x(),
height()-e->y(),0.0f), opt);
to get the coordinates of the mouse pointer (Z coord.
is not important at this point).
But as soon as I pan/rotate the scene the coordinates
are not anymore correct, since I have the coordinate
axis in the screen and the origin is not anymore
(0,0,0). Its coordinates are changing by the same
factor as pan/rotation. But in reality when we move a
camera there should be no changing in the coordinate
of the objects.
So here is the question:
why does it happen and how can I fix it? (to move the
camera not the objects)
The second question:
when I use glUnProject it does not get the same
coordinate as the projectWindowIntoObject. what is
wrong in between?
PS: I used the above functions after sceneView->draw()
as the documentation says. Also I tried to update the
manipulator matrix by the following code before coord.
queries:
if (keyswitchManipulator.valid() &&
keyswitchManipulator->getCurrentMatrixManipulator())
{
osgGA::MatrixManipulator* mm =
keyswitchManipulator->getCurrentMatrixManipulator();
osg::Matrixd matrix = mm->getInverseMatrix();
sceneView->setViewMatrix(matrix);
}
but again the problem is remained.
Thanks in advance for your attention and possible
solutions.
All the best
Soheil
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