void
OverlayDecorator::onInstall( TerrainEngineNode* engine )
{
_engine = engine;
// establish the earth's major axis:
MapInfo info(engine->getMap());
_isGeocentric = info.isGeocentric();
_srs = info.getProfile()->getSRS();
_ellipsoid = info.getProfile()->getSRS()->getEllipsoid();
// the maximum extent (for projected maps only)
if ( !_isGeocentric )
{
const GeoExtent& extent = info.getProfile()->getExtent();
_maxProjectedMapExtent = osg::maximum( extent.width(), extent.height() );
}
//todo: need this? ... probably not anymore
_useShaders =
Registry::capabilities().supportsGLSL() &&
engine->getTextureCompositor()->usesShaderComposition();
for(Techniques::iterator t = _techniques.begin(); t != _techniques.end(); ++t )
{
t->get()->onInstall( engine );
}
}
void
OverlayDecorator::setTerrainEngine(TerrainEngineNode* engine)
{
if (engine)
{
_engine = engine;
// establish the earth's major axis:
MapInfo info(engine->getMap());
_isGeocentric = info.isGeocentric();
_srs = info.getProfile()->getSRS();
_ellipsoid = info.getProfile()->getSRS()->getEllipsoid();
for(Techniques::iterator t = _techniques.begin(); t != _techniques.end(); ++t )
{
t->get()->onInstall( engine );
}
}
else
{
for (Techniques::iterator t = _techniques.begin(); t != _techniques.end(); ++t)
{
t->get()->onUninstall(engine);
}
}
}
void
OverlayDecorator::onUninstall( TerrainEngineNode* engine )
{
for(Techniques::iterator t = _techniques.begin(); t != _techniques.end(); ++t )
{
t->get()->onUninstall( engine );
}
_engine = 0L;
}
void
OverlayDecorator::onInstall( TerrainEngineNode* engine )
{
_engine = engine;
// establish the earth's major axis:
MapInfo info(engine->getMap());
_isGeocentric = info.isGeocentric();
_srs = info.getProfile()->getSRS();
_ellipsoid = info.getProfile()->getSRS()->getEllipsoid();
//todo: need this? ... probably not anymore
_useShaders =
Registry::capabilities().supportsGLSL() && (
!engine->getTextureCompositor() ||
engine->getTextureCompositor()->usesShaderComposition() );
for(Techniques::iterator t = _techniques.begin(); t != _techniques.end(); ++t )
{
t->get()->onInstall( engine );
}
}
