Muon::RpcClusterOnTrack_p3 Node1 Muon::RpcClusterOnTrack_p3 + m_id + m_positionAlongStrip + m_time + RpcClusterOnTrack_p3() Node2 ElementLink_p3< uint32_t > + m_elementIndex + m_SGKeyHash + ElementLink_p3() Node2->Node1 +m_prdLink Node3 TPObjRef # m_index + TPObjRef() + TPObjRef() + isNull() + typeID() + topLevelCnvID() + index() Node3->Node1 +m_localErrMat +m_localParams Node4 TPObjRef::typeID_t + m_TLCnvID + m_cnvID + typeID_t() + topLevelCnvID() + cnvID() + value() + isNull() Node4->Node3 #m_typeID