bool PolylineAnnotation::processEditingOnMove( QMouseEvent *mouseEvent ) { if ( !m_viewport ) { return false; } qreal lon, lat; m_viewport->geoCoordinates( mouseEvent->pos().x(), mouseEvent->pos().y(), lon, lat, GeoDataCoordinates::Radian ); const GeoDataCoordinates newCoords( lon, lat ); if ( m_interactingObj == InteractingNode ) { GeoDataLineString *line = static_cast<GeoDataLineString*>( placemark()->geometry() ); line->at(m_clickedNodeIndex) = newCoords; return true; } else if ( m_interactingObj == InteractingPolyline ) { GeoDataLineString *lineString = static_cast<GeoDataLineString*>( placemark()->geometry() ); const GeoDataLineString oldLineString = *lineString; lineString->clear(); const qreal deltaLat = lat - m_movedPointCoords.latitude(); const qreal deltaLon = lon - m_movedPointCoords.longitude(); Quaternion latRectAxis = Quaternion::fromEuler( 0, lon, 0); Quaternion latAxis = Quaternion::fromEuler( -deltaLat, 0, 0); Quaternion lonAxis = Quaternion::fromEuler(0, deltaLon, 0); Quaternion rotAxis = latRectAxis * latAxis * latRectAxis.inverse() * lonAxis; qreal lonRotated, latRotated; for ( int i = 0; i < oldLineString.size(); ++i ) { Quaternion qpos = oldLineString.at(i).quaternion(); qpos.rotateAroundAxis(rotAxis); qpos.getSpherical( lonRotated, latRotated ); GeoDataCoordinates movedPoint( lonRotated, latRotated, 0 ); lineString->append( movedPoint ); } m_movedPointCoords = newCoords; return true; } return dealWithHovering( mouseEvent ); }
void PolylineAnnotation::move( const GeoDataCoordinates &source, const GeoDataCoordinates &destination ) { GeoDataLineString *lineString = static_cast<GeoDataLineString*>( placemark()->geometry() ); GeoDataLineString oldLineString = *lineString; lineString->clear(); const qreal deltaLat = destination.latitude() - source.latitude(); const qreal deltaLon = destination.longitude() - source.longitude(); Quaternion latRectAxis = Quaternion::fromEuler( 0, destination.longitude(), 0); Quaternion latAxis = Quaternion::fromEuler( -deltaLat, 0, 0); Quaternion lonAxis = Quaternion::fromEuler(0, deltaLon, 0); Quaternion rotAxis = latRectAxis * latAxis * latRectAxis.inverse() * lonAxis; qreal lonRotated, latRotated; for ( int i = 0; i < oldLineString.size(); ++i ) { Quaternion qpos = oldLineString.at(i).quaternion(); qpos.rotateAroundAxis(rotAxis); qpos.getSpherical( lonRotated, latRotated ); GeoDataCoordinates movedPoint( lonRotated, latRotated, 0 ); lineString->append( movedPoint ); } }