Trk::IAlignTrackPreProcessor Node1 Trk::IAlignTrackPreProcessor + processTrackCollection() + setLogStream() + setNtuple() + fillNtuple() + accumulateVTX() + solveVTX() + printSummary() + interfaceID() Node2 IAlgTool Node2->Node1 Node3 std::ostream Node3->Node1 #m_logStream Node4 std::basic_ostream < char > Node4->Node3 Node5 std::basic_ios< Char > Node5->Node4 Node6 std::ios_base Node6->Node5