Hi,
I am trying to set new values for the position of my PAT node for every run of
while(!viewer.done())
Code:
while( !viewer.done() )
{
osg::Vec3d positionVector;
// fire off the cull and draw traversals of the scene.
viewer.frame();
viewer.updateTraversal();
receiveSignal(gpsInstance, gpsLat, gpsLon);
setBackhoe(gpsLat, gpsLon, mapNode, surface, objectPlacer, backhoe1PAT);
return 0;
}
And in my function:
Code:
void setBackhoe(double gpsLat,
double gpsLon,
osgEarth::MapNode* mapNode,
osg::Node *surface,
osgEarthUtil::ObjectPlacer* objectPlacer,
osg::PositionAttitudeTransform* backhoe1PAT
//osg::Vec3d &positionVector
)
{
osg::Matrixd positionMatrix1;
objectPlacer->createPlacerMatrix(gpsLat, gpsLon, 131, positionMatrix1);
static double latitude;
static double longitude;
static double height;
//static double x, y;
static double X1 = positionMatrix1.getTrans().x();
static double Y1 = positionMatrix1.getTrans().y();
static double Z1 = positionMatrix1.getTrans().z();
//get SpatialReferenceSystem SRS for terrain (i.e. map) and lat-long.
const SpatialReference* terrain_srs =
mapNode->getMap()->getProfile()->getSRS();
const SpatialReference* latlong_srs = terrain_srs->getGeographicSRS();
//convert from projected to lat-long:
terrain_srs->transform(X1, Y1, latlong_srs, longitude, latitude );
//to go from lat-long to projected:
latlong_srs->transform(longitude, latitude, terrain_srs, X1, Y1);
//set backhoe 1 exactly over terrain: letting the callback do that work.
//set the PAT value of backhoe1:
backhoe1PAT->setPosition(osg::Vec3d(X1, Y1, 0.0));
return ;
}
The problem I'm having is the my PAT node resets to (0,0,0) as soon as the
function is exited. But since I was passing in by pointer a PAT node which I
created in my main(), I thought this would not happen.
How can I keep the current position value in my PAT node till it is updated in
the next run ?
Been stuck on this for quite a while so was hoping to get some advise.
Thanks.
Best,
Sanat
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=30176#30176
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