L1Muon::L1MDT::CompactSegmentFinderTool Node1 L1Muon::L1MDT::CompactSegment FinderTool - m_clusterTolerance - m_maxClusters - m_debugClusters + ~CompactSegmentFinderTool() + initialize() + findSegments() - buildHitInfo() - clusterHits() - chooseBestCluster() - fitLine() Node2 extends< AthAlgTool, IL0MDTSegmentFinderTool >     Node2->Node1 Node3 ServiceHandle< Muon ::IMuonIdHelperSvc >     Node3->Node1 -m_idHelperSvc