static bool writeLayers( osgDB::OutputStream& os, const osgVolume::CompositeLayer& layer ) { unsigned int size = layer.getNumLayers(); os << size << os.BEGIN_BRACKET << std::endl; for ( unsigned int i=0; i<size; ++i ) { os << layer.getLayer(i); } os << os.END_BRACKET << std::endl; return true; }
static bool checkLayers( const osgVolume::CompositeLayer& layer ) { return layer.getNumLayers()>0; }