osgEarth 2.1.1
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Public Member Functions | |
virtual void | scan (const Config &conf, KMLContext &cx) |
virtual void | build (const Config &conf, KMLContext &cx) |
Definition at line 27 of file KML_GroundOverlay.
void KML_GroundOverlay::build | ( | const Config & | conf, |
KMLContext & | cx | ||
) | [virtual] |
Definition at line 32 of file KML_GroundOverlay.cpp.
{ // the URL of the overlay image std::string href = conf.child("icon").value("href"); if ( href.empty() ) { OE_WARN << LC << "GroundOverlay missing required Icon element" << std::endl; return; } ImageOverlay* im = 0L; // the extent of the overlay image const Config& llb = conf.child("latlonbox"); if ( !llb.empty() ) { double north = llb.value<double>("north", 0.0); double south = llb.value<double>("south", 0.0); double east = llb.value<double>("east", 0.0); double west = llb.value<double>("west", 0.0); Angular rotation( llb.value<double>("rotation", 0.0), Units::DEGREES ); osg::ref_ptr<osg::Image> image = URI(href, conf.uriContext()).readImage(); if ( !image.valid() ) { OE_WARN << LC << "GroundOverlay failed to read image from " << href << std::endl; return; } im = new ImageOverlay( cx._mapNode, image.get() ); im->setBoundsAndRotation( Bounds(west, south, east, north), rotation ); cx._groupStack.top()->addChild( im ); } else if ( conf.hasChild("gx:latlonquad") ) { const Config& llq = conf.child("gx:latlonquad"); KML_Geometry g; Style style; g.buildChild( llq, cx, style ); if ( g._geom.valid() && g._geom->size() >= 4 ) { osg::ref_ptr<osg::Image> image = URI(href, conf.uriContext()).readImage(); if ( !image.valid() ) { OE_WARN << LC << "GroundOverlay failed to read image from " << href << std::endl; return; } const Geometry& p = *(g._geom.get()); im = new ImageOverlay( cx._mapNode, image.get() ); im->setCorners( osg::Vec2d( p[0].x(), p[0].y() ), osg::Vec2d( p[1].x(), p[1].y() ), osg::Vec2d( p[3].x(), p[3].y() ), osg::Vec2d( p[2].x(), p[2].y() ) ); cx._groupStack.top()->addChild( im ); } } else { OE_WARN << LC << "GroundOverlay missing required LatLonBox/gx:LatLonQuad element" << std::endl; return; } // superclass build always called last KML_Overlay::build( conf, cx, im ); }
void KML_GroundOverlay::scan | ( | const Config & | conf, |
KMLContext & | cx | ||
) | [virtual] |
Reimplemented from KML_Overlay.
Definition at line 26 of file KML_GroundOverlay.cpp.
{ KML_Overlay::scan( conf, cx ); }