void
KML_Geometry::buildChild( const Config& conf, KMLContext& cx, Style& style)
{
if ( conf.key() == "point" )
{
KML_Point g;
g.parseStyle(conf, cx, style);
g.parseCoords(conf, cx);
_geom = g._geom.get();
}
else if ( conf.key() == "linestring" )
{
KML_LineString g;
g.parseStyle(conf, cx, style);
g.parseCoords(conf, cx);
_geom = g._geom.get();
}
else if ( conf.key() == "linearring" )
{
KML_LinearRing g;
g.parseStyle(conf, cx, style);
g.parseCoords(conf, cx);
_geom = g._geom.get();
}
else if ( conf.key() == "polygon" || conf.key() == "gx:latlonquad" )
{
KML_Polygon g;
g.parseStyle(conf, cx, style);
g.parseCoords(conf, cx);
_geom = g._geom.get();
}
else if ( conf.key() == "multigeometry" )
{
KML_MultiGeometry g;
g.parseStyle(conf, cx, style);
g.parseCoords(conf, cx);
const ConfigSet& mgChildren = conf.children();
for( ConfigSet::const_iterator i = mgChildren.begin(); i != mgChildren.end(); ++i )
{
const Config& mgChild = *i;
Style subStyle = style;
KML_Geometry subGeom;
subGeom.parseStyle( mgChild, cx, subStyle );
subGeom.buildChild( mgChild, cx, style );
if ( subGeom._geom.valid() )
dynamic_cast<MultiGeometry*>(g._geom.get())->getComponents().push_back( subGeom._geom.get() );
}
//g.parseCoords(conf.child("multigeometry"), cx);
_geom = g._geom.get();
}
else if ( conf.key() == "model" )
{
KML_Model g;
g.parseStyle(conf, cx, style);
g.parseCoords(conf, cx);
_geom = g._geom.get();
}
}
void
KML_Geometry::buildChild( xml_node<>* node, KMLContext& cx, Style& style)
{
std::string name = toLower(node->name());
if ( name == "point" )
{
KML_Point g;
g.parseCoords(node, cx);
_geom = g._geom.get();
g.parseStyle(node, cx, style);
}
else if (name == "linestring" )
{
KML_LineString g;
g.parseCoords(node, cx);
_geom = g._geom.get();
g.parseStyle(node, cx, style);
}
else if ( name == "linearring" || name == "gx:latlonquad" )
{
KML_LinearRing g;
g.parseCoords(node, cx);
_geom = g._geom.get();
g.parseStyle(node, cx, style);
}
else if ( name == "polygon" )
{
KML_Polygon g;
g.parseCoords(node, cx);
_geom = g._geom.get();
g.parseStyle(node, cx, style);
}
else if ( name == "multigeometry" )
{
KML_MultiGeometry g;
g.parseCoords(node, cx);
_geom = g._geom.get();
for( xml_node<>* n = node->first_node(); n; n = n->next_sibling())
{
KML_Geometry subGeom;
subGeom.buildChild( n, cx, style ); //use single style for all subgeometries
if ( subGeom._geom.valid() )
dynamic_cast<MultiGeometry*>(g._geom.get())->getComponents().push_back( subGeom._geom.get() );
}
}
else if ( name == "model" )
{
KML_Model g;
g.parseCoords(node, cx);
_geom = g._geom.get();
g.parseStyle(node, cx, style);
}
}
void
KML_GroundOverlay::build( const Config& conf, KMLContext& cx )
{
// 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.referrer()).readImage().getImage();
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.referrer()).readImage().getImage();
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 );
}
