Hi,
I tried to place cessna model at given latitude and longitude on a earth model
created by geotiff earth file warped over sphere (similar to the example
osgSimulation). But the model is positioned at some strange place. The way I do
placing is,
...............
.....................
osg::Node* cessna = osgDB::readNodeFile("cessna.osg");
if (cessna)
{
double s = 200000.0 / cessna->getBound().radius();
osg::MatrixTransform* scaler = new osg::MatrixTransform;
scaler->addChild(cessna);
scaler->setMatrix(osg::Matrixd::scale(s,s,s)*osg::Matrixd::rotate(rotation));
scaler->getOrCreateStateSet()->setMode(GL_RESCALE_NORMAL,osg::StateAttribute::ON);
osg::MatrixTransform* mt = new osg::MatrixTransform;
mt->addChild(scaler);
....
....
rot.makeRotate(osg::DegreesToRadians(90.0),0.0,0.0,1.0);
....
...
osg::EllipsoidModel* ellipsoid = csn->getEllipsoidModel();
if (ellipsoid)
{
osg::Matrixd matrix;
lat=11.0;
lon=78.0;
ht=100.0 * 1000.0;
ellipsoid->computeLocalToWorldTransformFromLatLongHeight(lat,long,ht,matrix);
matrix.preMultRotate(rot);
mt->setMatrix(matrix);
}
csn->addChild(mt);
.......
....
The coordinate system node is of the earth file (Geotif). I wud like to know
the mistake I do.
Thanks
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=26018#26018
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