virtual void onPositionChanged(const Dragger* sender, const osgEarth::GeoPoint& position)
{
const osg::EllipsoidModel* em = _node->getMapNode()->getMapSRS()->getEllipsoid();
//Figure out the distance between the center of the circle and this new location
GeoPoint center = _node->getPosition();
double distance = GeoMath::distance(osg::DegreesToRadians( center.y() ), osg::DegreesToRadians( center.x() ),
osg::DegreesToRadians( position.y() ), osg::DegreesToRadians( position.x() ),
em->getRadiusEquator());
double bearing = GeoMath::bearing(osg::DegreesToRadians( center.y() ), osg::DegreesToRadians( center.x() ),
osg::DegreesToRadians( position.y() ), osg::DegreesToRadians( position.x() ));
//Compute the new angular rotation based on how they moved the point
if (_major)
{
_node->setRotationAngle( Angle( bearing-osg::PI_2, Units::RADIANS ) );
_node->setRadiusMajor( Distance(distance, Units::METERS ) );
}
else // minor
{
_node->setRotationAngle( Angle( bearing, Units::RADIANS ) );
_node->setRadiusMinor( Distance(distance, Units::METERS ) );
}
_editor->updateDraggers();
}
void SceneController::setBounds(const osgEarth::GeoPoint& p1, const osgEarth::GeoPoint& p2)
{
_boundsLL.set(osg::minimum(p1.x(), p2.x()), osg::minimum(p1.y(), p2.y()));
_boundsUR.set(osg::maximum(p1.x(), p2.x()), osg::maximum(p1.y(), p2.y()));
if (_annoRoot.valid())
{
//TODO: use correct coords here
osgEarth::Symbology::Geometry* geom = new osgEarth::Symbology::Polygon();
geom->push_back(_boundsLL.x(), _boundsLL.y());
geom->push_back(_boundsUR.x(), _boundsLL.y());
geom->push_back(_boundsUR.x(), _boundsUR.y());
geom->push_back(_boundsLL.x(), _boundsUR.y());
osgEarth::Features::Feature* feature = new osgEarth::Features::Feature(geom, _mapNode->getMapSRS()->getGeographicSRS(), _boundsStyle);
if (!_bboxNode.valid())
{
_bboxNode = new osgEarth::Annotation::FeatureNode(_mapNode, feature);
_bboxNode->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
_annoRoot->addChild( _bboxNode.get() );
}
else
{
_bboxNode->setFeature(feature);
}
}
}
virtual void onPositionChanged(const Dragger* sender, const osgEarth::GeoPoint& position)
{
(*_featureNode->getFeature()->getGeometry())[_point] = osg::Vec3d(position.x(), position.y(), 0);
_featureNode->init();
}