Muon::MuonPatternCalibration::Region Node1 Muon::MuonPatternCalibration ::Region + regionPos + regionDir + init + Region() Node2 std::map< int, ISPrdMdtVec > + keys Node2->Node1 +mdtPrdsPerChamber Node3 std::vector< T > Node3->Node2 +elements Node4 T Node4->Node3 +elements Node5 std::vector< ISPrd > + elements Node5->Node1 +triggerPrds