InDet::CompetingTRT_DriftCirclesOnTrack_p1 Node1 InDet::CompetingTRT _DriftCirclesOnTrack_p1 + CompetingTRT_DriftCircles OnTrack_p1() Node2 std::vector< TPObjRef > Node2->Node1 +m_containedChildRots Node3 TPObjRef # m_index + TPObjRef() + TPObjRef() + isNull() + typeID() + topLevelCnvID() + index() Node3->Node1 +m_associatedSurface +m_competingROT Node3->Node2 +elements Node4 TPObjRef::typeID_t + m_TLCnvID + m_cnvID + typeID_t() + topLevelCnvID() + cnvID() + value() + isNull() Node4->Node3 #m_typeID