Hi, all. Source file and header in archive. To use a class a compass:
osg::ref_ptr<osg::Node> node = osgDB::readNodeFile("arrow.osgb"); // any node
looking to the north
if(node.valid())
{
node->getOrCreateStateSet()->setMode( GL_LIGHTING,
osg::StateAttribute::OFF );
}
osg::ref_ptr<osg::PositionAttitudeTransform> pos = new
osg::PositionAttitudeTransform;
pos->addChild(node.get());
pos->setScale(osg::Vec3(0.6,0.6,0.6));
osg::ref_ptr<Compass> compass = new Compass;
compass->setViewport( 0.0, 0.0, 100.0, 100.0 );
compass->setProjectionMatrix( osg::Matrixd::identity() );
compass->setNeedle( pos.get() );
compass->setMainCamera( VIEWER->getCamera() );
compass->setRenderOrder( osg::Camera::POST_RENDER );
compass->setClearMask( GL_DEPTH_BUFFER_BIT );
compass->setAllowEventFocus( false );
compass->setReferenceFrame( osg::Transform::ABSOLUTE_RF );
compass->getOrCreateStateSet()->setMode( GL_LIGHTING,
osg::StateAttribute::OFF );
compass->getOrCreateStateSet()->setMode( GL_BLEND, osg::StateAttribute::ON
);
root->addChild( compass.get() );
Good luck!
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=69393#69393
Compass.7z
Description: Binary data
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