GNNR3_FasTrackConnector::LayerGroup Node1 GNNR3_FasTrackConnector ::LayerGroup + m_dst + LayerGroup() Node2 std::vector< const GNNR3_FasTrackConnection * > Node2->Node1 +m_sources Node3 GNNR3_FasTrackConnection + m_src + m_dst + GNNR3_FasTrackConnection() + ~GNNR3_FasTrackConnection() Node3->Node2 +elements Node4 std::vector< int > + elements Node4->Node3 +m_binTable