void
EllipseNodeEditor::updateDraggers()
{
LocalizedNodeEditor::updateDraggers();
if (_majorDragger && _minorDragger)
{
const osg::EllipsoidModel* em = _node->getMapNode()->getMap()->getProfile()->getSRS()->getEllipsoid();
//Get the current location of the center of the circle
GeoPoint location = _node->getPosition();
//Get the raddi of the ellipse in meters
EllipseNode* ellipse = static_cast<EllipseNode*>(_node.get());
double majorR = ellipse->getRadiusMajor().as(Units::METERS);
double minorR = ellipse->getRadiusMinor().as(Units::METERS);
double rotation = ellipse->getRotationAngle().as( Units::RADIANS );
double lat, lon;
GeoMath::destination(osg::DegreesToRadians( location.y() ), osg::DegreesToRadians( location.x() ), osg::PI_2 - rotation, minorR, lat, lon, em->getRadiusEquator());
_minorDragger->setPosition( GeoPoint(location.getSRS(), osg::RadiansToDegrees( lon ), osg::RadiansToDegrees( lat ), 0, ALTMODE_ABSOLUTE), false);
GeoMath::destination(osg::DegreesToRadians( location.y() ), osg::DegreesToRadians( location.x() ), -rotation, majorR, lat, lon, em->getRadiusEquator());
_majorDragger->setPosition( GeoPoint(location.getSRS(), osg::RadiansToDegrees( lon ), osg::RadiansToDegrees( lat ), 0, ALTMODE_ABSOLUTE), false);
}
}
void
EllipseNodeEditor::updateDraggers()
{
LocalizedNodeEditor::updateDraggers();
if (_majorDragger && _minorDragger)
{
const osg::EllipsoidModel* em = _node->getMapNode()->getMap()->getProfile()->getSRS()->getEllipsoid();
//Get the current location of the center of the circle
GeoPoint location = _node->getPosition();
//Get the raddi of the ellipse in meters
EllipseNode* ellipse = static_cast<EllipseNode*>(_node.get());
double majorR = ellipse->getRadiusMajor().as(Units::METERS);
double minorR = ellipse->getRadiusMinor().as(Units::METERS);
double rotation = ellipse->getRotationAngle().as( Units::RADIANS );
double latRad, lonRad;
// minor dragger: end of the rotated +Y axis:
GeoMath::destination(
osg::DegreesToRadians( location.y() ), osg::DegreesToRadians( location.x() ),
rotation,
minorR,
latRad, lonRad,
em->getRadiusEquator());
GeoPoint minorLocation(location.getSRS(), osg::RadiansToDegrees( lonRad ), osg::RadiansToDegrees( latRad ));
minorLocation.z() = 0;
_minorDragger->setPosition( minorLocation, false );
// major dragger: end of the rotated +X axis
GeoMath::destination(
osg::DegreesToRadians( location.y() ),
osg::DegreesToRadians( location.x() ),
rotation + osg::PI_2,
majorR,
latRad, lonRad,
em->getRadiusEquator());
GeoPoint majorLocation(location.getSRS(), osg::RadiansToDegrees( lonRad ), osg::RadiansToDegrees( latRad ));
majorLocation.z() = 0;
_majorDragger->setPosition( majorLocation, false);
}
}
