void
TrackNode::init( const TrackNodeFieldSchema& schema )
{
_geode = new osg::Geode();
if ( _image.valid() )
{
// apply the image icon.
osg::Geometry* imageGeom = AnnotationUtils::createImageGeometry(
_image.get(), // image
osg::Vec2s(0,0) ); // offset
if ( imageGeom )
{
_geode->addDrawable( imageGeom );
}
}
if ( !schema.empty() )
{
// turn the schema defs into text drawables and record a map so we can
// set the field text later.
for( TrackNodeFieldSchema::const_iterator i = schema.begin(); i != schema.end(); ++i )
{
const TrackNodeField& field = i->second;
if ( field._symbol.valid() )
{
osg::Drawable* drawable = AnnotationUtils::createTextDrawable(
field._symbol->content()->expr(), // text
field._symbol.get(), // symbol
osg::Vec3(0,0,0) ); // offset
if ( drawable )
{
// if the user intends to change the label later, make it dynamic
// since osgText updates are not thread-safe
if ( field._dynamic )
drawable->setDataVariance( osg::Object::DYNAMIC );
else
drawable->setDataVariance( osg::Object::STATIC );
addDrawable( i->first, drawable );
}
}
}
}
// ensure depth testing always passes, and disable depth buffer writes.
osg::StateSet* stateSet = _geode->getOrCreateStateSet();
stateSet->setAttributeAndModes( new osg::Depth(osg::Depth::ALWAYS, 0, 1, false), 1 );
getAttachPoint()->addChild( _geode );
}
void
TrackNode::init( const TrackNodeFieldSchema& schema )
{
osg::StateSet* ss = this->getOrCreateStateSet();
ScreenSpaceLayout::activate(ss);
// Disable lighting for place nodes by default
ss->setDefine(OE_LIGHTING_DEFINE, osg::StateAttribute::OFF);
osgEarth::clearChildren( getPositionAttitudeTransform() );
_geode = new osg::Geode();
IconSymbol* icon = _style.get<IconSymbol>();
osg::Image* image = icon ? icon->getImage() : 0L;
if ( icon && image )
{
// apply the image icon.
osg::Geometry* imageGeom = AnnotationUtils::createImageGeometry(
image, // image
osg::Vec2s(0,0), // offset
0, // tex image unit
icon->heading()->eval(),
icon->scale()->eval() );
if ( imageGeom )
{
_geode->addDrawable( imageGeom );
ScreenSpaceLayoutData* layout = new ScreenSpaceLayoutData();
layout->setPriority(getPriority());
imageGeom->setUserData(layout);
}
}
if ( !schema.empty() )
{
// turn the schema defs into text drawables and record a map so we can
// set the field text later.
for( TrackNodeFieldSchema::const_iterator i = schema.begin(); i != schema.end(); ++i )
{
const TrackNodeField& field = i->second;
if ( field._symbol.valid() )
{
osg::Vec3 offset(
field._symbol->pixelOffset()->x(),
field._symbol->pixelOffset()->y(),
0.0);
osg::Drawable* drawable = AnnotationUtils::createTextDrawable(
field._symbol->content()->expr(), // text
field._symbol.get(), // symbol
offset ); // offset
if ( drawable )
{
// if the user intends to change the label later, make it dynamic
// since osgText updates are not thread-safe
if ( field._dynamic )
drawable->setDataVariance( osg::Object::DYNAMIC );
else
drawable->setDataVariance( osg::Object::STATIC );
addDrawable( i->first, drawable );
}
}
}
}
// ensure depth testing always passes, and disable depth buffer writes.
osg::StateSet* stateSet = _geode->getOrCreateStateSet();
stateSet->setAttributeAndModes( new osg::Depth(osg::Depth::ALWAYS, 0, 1, false), 1 );
applyStyle( _style );
setLightingIfNotSet( false );
getPositionAttitudeTransform()->addChild( _geode );
// generate shaders:
Registry::shaderGenerator().run(
this,
"osgEarth.TrackNode",
Registry::stateSetCache() );
}