TRT_HitCollection_p4 Node1 TRT_HitCollection_p4 + TRT_HitCollection_p4() Node2 std::vector< char > + elements Node2->Node1 +m_evtColl Node3 std::vector< unsigned short > + elements Node3->Node1 +m_nId +m_mcEvtIndex +m_steplength +m_kinEne +m_strawId2b +m_meanTime +m_nBC +m_nHits Node4 std::vector< int > + elements Node4->Node1 +m_id Node5 std::vector< float > + elements Node5->Node1 +m_hitEne +m_meanTimeof Node6 std::vector< unsigned int > + elements Node6->Node1 +m_barcode Node7 std::vector< unsigned char > + elements Node7->Node1 +m_strawId1b +m_endPhi +m_endR +m_startPhi +m_startZ +m_startR