Пример #1
0
TileNode*
TileGroup::getTileNode(unsigned q)
{
    osg::Node* child = getChild(q);
    TilePagedLOD* plod = dynamic_cast<TilePagedLOD*>( child );
    if ( plod ) return plod->getTileNode();
    return static_cast<TileNode*>( child );
}
Пример #2
0
void
TileGroup::applyUpdate(osg::Node* node)
{
    if ( node )
    {
        OE_DEBUG << LC << "Update received for tile " << _key.str() << std::endl;

        TileGroup* update = dynamic_cast<TileGroup*>( node );
        if ( !update )
        {
            OE_WARN << LC << "Internal error: update was not a TileGroup" << std::endl;
            return;
        }

        if ( update->getNumChildren() < 4 )
        {
            OE_WARN << LC << "Internal error: update did not have 4 children" << std::endl;
            return;
        }

        for(unsigned i=0; i<4; ++i)
        {
            TileNode* newTileNode = dynamic_cast<TileNode*>( update->getChild(i) );
            if ( !newTileNode )
            {
                OE_WARN << LC << "Internal error; update child was not a TileNode" << std::endl;
                return;
            }

            osg::ref_ptr<TileNode> oldTileNode = 0L;

            TilePagedLOD* plod = dynamic_cast<TilePagedLOD*>(_children[i].get());
            if ( plod )
            {
                oldTileNode = plod->getTileNode();
                plod->setTileNode( newTileNode );
                if ( _live.valid() )
                    _live->move( oldTileNode.get(), _dead.get() );
            }
            else
            {
                // must be a TileNode leaf, so replace it here.
                oldTileNode = dynamic_cast<TileNode*>(_children[i].get());
                if ( !oldTileNode.valid() )
                {
                    OE_WARN << LC << "Internal error; existing child was not a TilePagedLOD or a TileNode" << std::endl;
                    return;
                }

                this->setChild( i, newTileNode );
                if ( _live.valid() )
                    _live->move( oldTileNode.get(), _dead.get() );
            }

            if ( _live.valid() )
                _live->add( newTileNode );
        }
    }

    // deactivate the update agent
    _updateAgent = 0L;
}