// override
osg::Node* createNode( ProgressCallback* progress )
{
osg::ref_ptr<osg::Node> result;
// required if the model includes local refs, like PagedLOD or ProxyNode:
osg::ref_ptr<osgDB::Options> localOptions =
Registry::instance()->cloneOrCreateOptions( _dbOptions.get() );
//_dbOptions.get() ?
//new osgDB::Options(*_dbOptions.get()) : new osgDB::Options();
localOptions->getDatabasePathList().push_back( osgDB::getFilePath(_options.url()->full()) );
result = _options.url()->getNode( localOptions.get(), CachePolicy::INHERIT, progress );
//result = _options.url()->readNode( localOptions.get(), CachePolicy::NO_CACHE, progress ).releaseNode();
if (_options.location().isSet())
{
GeoPoint geoPoint(_map->getProfile()->getSRS(), (*_options.location()).x(), (*_options.location()).y(), (*_options.location()).z());
OE_NOTICE << "Read location " << geoPoint.vec3d() << std::endl;
osg::Matrixd matrix;
geoPoint.createLocalToWorld( matrix );
if (_options.orientation().isSet())
{
//Apply the rotation
osg::Matrix rot_mat;
rot_mat.makeRotate(
osg::DegreesToRadians((*_options.orientation()).y()), osg::Vec3(1,0,0),
osg::DegreesToRadians((*_options.orientation()).x()), osg::Vec3(0,0,1),
osg::DegreesToRadians((*_options.orientation()).z()), osg::Vec3(0,1,0) );
matrix.preMult(rot_mat);
}
osg::MatrixTransform* mt = new osg::MatrixTransform;
mt->setMatrix( matrix );
mt->addChild( result.get() );
result = mt;
}
if(_options.lodScale().isSet())
{
LODScaleOverrideNode * node = new LODScaleOverrideNode;
node->setLODScale(_options.lodScale().value());
node->addChild(result.release());
result = node;
}
return result.release();
}
// override
osg::Node* createNodeImplementation(const Map* map, const osgDB::Options* dbOptions, ProgressCallback* progress )
{
osg::ref_ptr<osg::Node> result;
// Only support paging if they've enabled it and provided a min/max range
bool usePagedLOD = *_options.paged() &&
(_options.minRange().isSet() || _options.maxRange().isSet());
if (_options.node() != NULL)
{
result = _options.node();
}
else
{
// Only load the model if it's not paged or we don't have a location set.
if (!usePagedLOD || !_options.location().isSet())
{
// required if the model includes local refs, like PagedLOD or ProxyNode:
osg::ref_ptr<osgDB::Options> localOptions =
Registry::instance()->cloneOrCreateOptions( dbOptions );
localOptions->getDatabasePathList().push_back( osgDB::getFilePath(_options.url()->full()) );
result = _options.url()->getNode( localOptions.get(), progress );
}
}
// Always create a matrix transform
osg::MatrixTransform* mt = new osg::MatrixTransform;
if (_options.location().isSet() && map != 0L)
{
GeoPoint geoPoint(
map->getProfile()->getSRS(),
(*_options.location()).x(),
(*_options.location()).y(),
(*_options.location()).z(),
ALTMODE_ABSOLUTE );
osg::Matrixd matrix;
geoPoint.createLocalToWorld( matrix );
if (_options.orientation().isSet())
{
//Apply the rotation
osg::Matrix rot_mat;
rot_mat.makeRotate(
osg::DegreesToRadians((*_options.orientation()).y()), osg::Vec3(1,0,0),
osg::DegreesToRadians((*_options.orientation()).x()), osg::Vec3(0,0,1),
osg::DegreesToRadians((*_options.orientation()).z()), osg::Vec3(0,1,0) );
matrix.preMult(rot_mat);
}
mt->setMatrix( matrix );
}
if ( _options.minRange().isSet() || _options.maxRange().isSet() )
{
float minRange = _options.minRange().isSet() ? (*_options.minRange()) : 0.0f;
float maxRange = _options.maxRange().isSet() ? (*_options.maxRange()) : FLT_MAX;
osg::LOD* lod = 0;
if (!usePagedLOD)
{
// Just use a regular LOD
lod = new osg::LOD();
lod->addChild(result.release(), minRange, maxRange);
}
else
{
// Use a PagedLOD
osg::PagedLOD* plod =new osg::PagedLOD();
plod->setFileName(0, _options.url()->full());
// If they want the model to be paged but haven't given us a location we have to load
// up the node up front and figure out what it's center and radius are or it won't page in.
if (!_options.location().isSet() && result.valid())
{
osg::Vec3d center = result->getBound().center();
OE_DEBUG << "Radius=" << result->getBound().radius() << " center=" << center.x() << "," << center.y() << "," << center.z() << std::endl;
plod->setCenter(result->getBound().center());
plod->setRadius(result->getBound().radius());
}
lod = plod;
}
lod->setRange(0, minRange, maxRange);
mt->addChild(lod);
}
else
{
// Simply add the node to the matrix transform
if (result.valid())
{
mt->addChild( result.get() );
}
}
result = mt;
// generate a shader program to render the model.
if ( result.valid() )
{
if(_options.loadingPriorityScale().isSet() || _options.loadingPriorityOffset().isSet())
{
SetLoadPriorityVisitor slpv(_options.loadingPriorityScale().value(), _options.loadingPriorityOffset().value());
result->accept(slpv);
}
if(_options.lodScale().isSet())
{
LODScaleOverrideNode * node = new LODScaleOverrideNode;
node->setLODScale(_options.lodScale().value());
node->addChild(result.release());
result = node;
}
if ( _options.shaderPolicy() == SHADERPOLICY_GENERATE )
{
osg::ref_ptr<StateSetCache> cache = new StateSetCache();
Registry::shaderGenerator().run(
result,
_options.url()->base(),
cache.get() );
cache->dumpStats();
}
else if ( _options.shaderPolicy() == SHADERPOLICY_DISABLE )
{
result->getOrCreateStateSet()->setAttributeAndModes(
new osg::Program(),
osg::StateAttribute::OFF | osg::StateAttribute::OVERRIDE );
}
}
return result.release();
}