1 #ifndef ALIMUONVTRACKRECONSTRUCTOR_H
2 #define ALIMUONVTRACKRECONSTRUCTOR_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
9 /// \class AliMUONVTrackReconstructor
10 /// \brief Virtual class for the MUON track reconstruction
12 // Author: Philippe Pillot
17 class AliMUONTrackParam;
18 class AliMUONVCluster;
19 class AliMUONTriggerTrack;
20 class AliMUONTrackHitPattern;
21 class AliMUONVClusterServer;
22 class AliMUONVClusterStore;
23 class AliMUONVTrackStore;
24 class AliMUONVTriggerTrackStore;
25 class AliMUONVTriggerStore;
26 class AliMUONGeometryTransformer;
27 class AliMUONDigitMaker;
28 class AliMUONTriggerCircuit;
30 class AliMUONRecoParam;
31 class AliMUONLocalTrigger;
33 class AliMUONVTrackReconstructor : public TObject {
36 AliMUONVTrackReconstructor(const AliMUONRecoParam* recoParam, AliMUONVClusterServer* clusterServer,
37 const AliMUONGeometryTransformer* transformer); // default Constructor
38 virtual ~AliMUONVTrackReconstructor(); // Destructor
41 void EventReconstruct(AliMUONVClusterStore& clusterStore,
42 AliMUONVTrackStore& trackStore);
44 void EventReconstructTrigger(const AliMUONTriggerCircuit& triggerCircuit,
45 const AliMUONVTriggerStore& triggerStore,
46 AliMUONVTriggerTrackStore& triggerTrackStore);
48 void ValidateTracksWithTrigger(AliMUONVTrackStore& trackStore,
49 const AliMUONVTriggerTrackStore& triggerTrackStore,
50 const AliMUONVTriggerStore& triggerStore,
51 const AliMUONTrackHitPattern& trackHitPattern);
53 /// Return reco parameters
54 const AliMUONRecoParam* GetRecoParam() const { return fkRecoParam; }
56 /// Re-fit the given track
57 virtual Bool_t RefitTrack(AliMUONTrack &track, Bool_t enableImprovement = kTRUE) = 0;
59 Bool_t TriggerToTrack(const AliMUONTriggerCircuit& circuit,
60 const AliMUONLocalTrigger& locTrg,
61 AliMUONTriggerTrack& triggerTrack,
62 UChar_t globalTriggerPattern = 0);
68 TClonesArray *fRecTracksPtr; ///< pointer to array of reconstructed tracks
69 Int_t fNRecTracks; ///< number of reconstructed tracks
71 AliMUONVClusterServer* fClusterServer; ///< reference to our cluster server
73 const AliMUONRecoParam* fkRecoParam; ///< reference to reco parameters
74 const AliMUONGeometryTransformer* fkTransformer; //!< geometry transformer (not owner)
76 Double_t* fMaxMCSAngle2; ///< maximum angle dispersion due to MCS
79 AliMUONVTrackReconstructor (const AliMUONVTrackReconstructor& rhs); ///< copy constructor
80 AliMUONVTrackReconstructor& operator=(const AliMUONVTrackReconstructor& rhs); ///< assignment operator
82 /// Make track candidates from clusters in stations(1..) 4 and 5
83 virtual Bool_t MakeTrackCandidates(AliMUONVClusterStore& clusterStore) = 0;
84 /// Make extra track candidates from clusters in stations(1..) 4 and 5
85 virtual Bool_t MakeMoreTrackCandidates(AliMUONVClusterStore& clusterStore) = 0;
86 /// Follow tracks in stations(1..) 3, 2 and 1
87 virtual Bool_t FollowTracks(AliMUONVClusterStore& clusterStore) = 0;
88 /// Complement the reconstructed tracks
89 virtual Bool_t ComplementTracks(const AliMUONVClusterStore& clusterStore) = 0;
91 /// Improve the given reconstructed track
92 virtual void ImproveTrack(AliMUONTrack &track) = 0;
94 /// Finalize the given track
95 virtual Bool_t FinalizeTrack(AliMUONTrack &track) = 0;
97 void DiscardMonoCathodClusters();
98 void ChangeMonoCathodClusterRes(AliMUONTrack &track);
100 Bool_t IsAcceptable(AliMUONTrackParam &trackParam);
102 TClonesArray* MakeSegmentsBetweenChambers(const AliMUONVClusterStore& clusterStore, Int_t ch1, Int_t ch2);
104 void RemoveUsedSegments(TClonesArray& segments);
105 void RemoveIdenticalTracks();
106 void RemoveDoubleTracks();
107 void RemoveBadTracks();
108 void RemoveConnectedTracks(Int_t stMin, Int_t stMax, Bool_t all);
109 void TagConnectedTracks(Int_t stMin, Int_t stMax, Bool_t all);
111 void AskForNewClustersInStation(const AliMUONTrackParam &trackParam,
112 AliMUONVClusterStore& clusterStore, Int_t station);
113 void AskForNewClustersInChamber(const AliMUONTrackParam &trackParam,
114 AliMUONVClusterStore& clusterStore, Int_t chamber);
116 Double_t TryOneCluster(const AliMUONTrackParam &trackParam, AliMUONVCluster* cluster,
117 AliMUONTrackParam &trackParamAtCluster, Bool_t updatePropagator = kFALSE);
118 Bool_t TryOneClusterFast(const AliMUONTrackParam &trackParam, const AliMUONVCluster* cluster);
119 Double_t TryTwoClustersFast(const AliMUONTrackParam &trackParamAtCluster1, AliMUONVCluster* cluster2,
120 AliMUONTrackParam &trackParamAtCluster2);
122 Bool_t FollowLinearTrackInChamber(AliMUONTrack &trackCandidate, const AliMUONVClusterStore& clusterStore, Int_t nextChamber);
123 Bool_t FollowLinearTrackInStation(AliMUONTrack &trackCandidate, const AliMUONVClusterStore& clusterStore, Int_t nextStation);
131 ClassDef(AliMUONVTrackReconstructor, 0) // MUON track reconstructor in ALICE