Rec::TrackParticle_p3 Node1 Rec::TrackParticle_p3 + m_fitQuality_m_chiSquared + m_fitQuality_m_numberDoF + bitsAndPieces + TrackParticle_p3() Node2 TPObjRef # m_index + TPObjRef() + TPObjRef() + isNull() + typeID() + topLevelCnvID() + index() Node2->Node1 +m_trackSummary Node4 std::vector< TPObjRef > Node2->Node4 +elements Node3 TPObjRef::typeID_t + m_TLCnvID + m_cnvID + typeID_t() + topLevelCnvID() + cnvID() + value() + isNull() Node3->Node2 #m_typeID Node4->Node1 +m_trackParameters Node5 ElementLink_p3< uint32_t > + m_elementIndex + m_SGKeyHash + ElementLink_p3() Node5->Node1 +m_originalTrack +m_elVxCandidate Node6 AthenaBarCode_p1 + m_athenabarcode + AthenaBarCode_p1() + ~AthenaBarCode_p1() Node6->Node1 +m_abc