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); // default Constructor
37 virtual ~AliMUONVTrackReconstructor(); // Destructor
40 void EventReconstruct(AliMUONVClusterStore& clusterStore,
41 AliMUONVTrackStore& trackStore);
43 void EventReconstructTrigger(const AliMUONTriggerCircuit& triggerCircuit,
44 const AliMUONVTriggerStore& triggerStore,
45 AliMUONVTriggerTrackStore& triggerTrackStore);
47 void ValidateTracksWithTrigger(AliMUONVTrackStore& trackStore,
48 const AliMUONVTriggerTrackStore& triggerTrackStore,
49 const AliMUONVTriggerStore& triggerStore,
50 const AliMUONTrackHitPattern& trackHitPattern);
52 /// Return reco parameters
53 const AliMUONRecoParam* GetRecoParam() const { return fkRecoParam; }
55 /// Re-fit the given track
56 virtual Bool_t RefitTrack(AliMUONTrack &track, Bool_t enableImprovement = kTRUE) = 0;
58 void TriggerToTrack(const AliMUONTriggerCircuit& circuit,
59 const AliMUONLocalTrigger& locTrg,
60 AliMUONTriggerTrack& triggerTrack,
61 UChar_t globalTriggerPattern = 0);
67 TClonesArray *fRecTracksPtr; ///< pointer to array of reconstructed tracks
68 Int_t fNRecTracks; ///< number of reconstructed tracks
70 AliMUONVClusterServer* fClusterServer; ///< reference to our cluster server
72 const AliMUONRecoParam* fkRecoParam; ///< reference to reco parameters
74 Double_t* fMaxMCSAngle2; ///< maximum angle dispersion due to MCS
77 AliMUONVTrackReconstructor (const AliMUONVTrackReconstructor& rhs); ///< copy constructor
78 AliMUONVTrackReconstructor& operator=(const AliMUONVTrackReconstructor& rhs); ///< assignment operator
80 /// Make track candidates from clusters in stations(1..) 4 and 5
81 virtual Bool_t MakeTrackCandidates(AliMUONVClusterStore& clusterStore) = 0;
82 /// Make extra track candidates from clusters in stations(1..) 4 and 5
83 virtual Bool_t MakeMoreTrackCandidates(AliMUONVClusterStore& clusterStore) = 0;
84 /// Follow tracks in stations(1..) 3, 2 and 1
85 virtual Bool_t FollowTracks(AliMUONVClusterStore& clusterStore) = 0;
86 /// Complement the reconstructed tracks
87 virtual Bool_t ComplementTracks(const AliMUONVClusterStore& clusterStore) = 0;
89 /// Improve the given reconstructed track
90 virtual void ImproveTrack(AliMUONTrack &track) = 0;
92 /// Finalize the given track
93 virtual Bool_t FinalizeTrack(AliMUONTrack &track) = 0;
95 Bool_t IsAcceptable(AliMUONTrackParam &trackParam);
97 TClonesArray* MakeSegmentsBetweenChambers(const AliMUONVClusterStore& clusterStore, Int_t ch1, Int_t ch2);
99 void RemoveUsedSegments(TClonesArray& segments);
100 void RemoveIdenticalTracks();
101 void RemoveDoubleTracks();
102 void RemoveConnectedTracks(Int_t stMin, Int_t stMax, Bool_t all);
103 void TagConnectedTracks(Int_t stMin, Int_t stMax, Bool_t all);
105 void AskForNewClustersInStation(const AliMUONTrackParam &trackParam,
106 AliMUONVClusterStore& clusterStore, Int_t station);
107 void AskForNewClustersInChamber(const AliMUONTrackParam &trackParam,
108 AliMUONVClusterStore& clusterStore, Int_t chamber);
110 Double_t TryOneCluster(const AliMUONTrackParam &trackParam, AliMUONVCluster* cluster,
111 AliMUONTrackParam &trackParamAtCluster, Bool_t updatePropagator = kFALSE);
112 Bool_t TryOneClusterFast(const AliMUONTrackParam &trackParam, const AliMUONVCluster* cluster);
113 Double_t TryTwoClustersFast(const AliMUONTrackParam &trackParamAtCluster1, AliMUONVCluster* cluster2,
114 AliMUONTrackParam &trackParamAtCluster2);
116 Bool_t FollowLinearTrackInChamber(AliMUONTrack &trackCandidate, const AliMUONVClusterStore& clusterStore, Int_t nextChamber);
117 Bool_t FollowLinearTrackInStation(AliMUONTrack &trackCandidate, const AliMUONVClusterStore& clusterStore, Int_t nextStation);
125 ClassDef(AliMUONVTrackReconstructor, 0) // MUON track reconstructor in ALICE