FGFS-4.1/OpenSceneGraph
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Fix to compute coordinate frame callback so that it can handle scaled

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coordinate frames, rescaling as required.
This commit is contained in:
Robert Osfield
2005-04-07 16:09:34 +00:00
parent d160b4977b
commit 9dd9464638
1 changed files with 20 additions and 4 deletions
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24
src/osgProducer/Viewer.cpp
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@@ -203,11 +203,27 @@ public:
if (csn)
{
osg::Vec3 local_position = position*osg::computeWorldToLocal(tmpPath);
osg::notify(osg::INFO)<<"local postion "<<local_position<<std::endl;
osg::notify(osg::INFO)<<"csn->computeLocalCoordinateFrame(position)* osg::computeLocalToWorld(tmpPath)"<<std::endl;
// get the coordinate frame in world coords.
coordinateFrame = csn->computeLocalCoordinateFrame(local_position)* osg::computeLocalToWorld(tmpPath);
// keep the position of the coordinate frame to reapply after rescale.
osg::Vec3d pos = coordinateFrame.getTrans();
// compensate for any scaling, so that the coordinate frame is a unit size
osg::Vec3d x(1.0,0.0,0.0);
osg::Vec3d y(0.0,1.0,0.0);
osg::Vec3d z(0.0,0.0,1.0);
x = osg::Matrixd::transform3x3(x,coordinateFrame);
y = osg::Matrixd::transform3x3(y,coordinateFrame);
z = osg::Matrixd::transform3x3(z,coordinateFrame);
coordinateFrame.preMult(osg::Matrixd::scale(1.0/x.length(),1.0/y.length(),1.0/z.length()));
// reapply the position.
coordinateFrame.setTrans(pos);
osg::notify(osg::INFO)<<"csn->computeLocalCoordinateFrame(position)* osg::computeLocalToWorld(tmpPath)"<<coordinateFrame<<std::endl;
}
else
{