3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
7 // Revision of includes 07/05/2004
10 /// \class AliMUONTrack
11 /// \brief Reconstructed track in ALICE dimuon spectrometer
13 ////////////////////////////////////////////////////
14 /// Reconstructed track in ALICE dimuon spectrometer
15 ////////////////////////////////////////////////////
17 #include <TClonesArray.h>
19 #include "AliMUONTrackParam.h" // object belongs to the class
21 class AliMUONHitForRec;
23 class AliMUONTrack : public TObject
26 AliMUONTrack(); // Default constructor
27 virtual ~AliMUONTrack(); // Destructor
28 AliMUONTrack (const AliMUONTrack& AliMUONTrack); // copy constructor
29 AliMUONTrack& operator=(const AliMUONTrack& AliMUONTrack); // assignment operator
31 AliMUONTrack(AliMUONHitForRec* hitForRec1, AliMUONHitForRec* hitForRec2); // Constructor from a segment
33 /// return pointeur to track parameters at vertex
34 AliMUONTrackParam* GetTrackParamAtVertex(void) {return &fTrackParamAtVertex;}
35 /// set track parameters at vertex
36 void SetTrackParamAtVertex(AliMUONTrackParam* trackParam) {fTrackParamAtVertex = *trackParam;}
38 /// return array of track parameters at hit
39 TClonesArray* GetTrackParamAtHit(void) const {return fTrackParamAtHit;}
40 /// reset array of track parameters at hit
41 void ResetTrackParamAtHit(void) { fTrackParamAtHit->Delete(); }
42 /// add track parameters to the array of track parameters at hit
43 void AddTrackParamAtHit(AliMUONTrackParam *trackParam, AliMUONHitForRec *hitForRec);
45 /// return array of hitForRec at hit
46 TClonesArray* GetHitForRecAtHit(void) const {return fHitForRecAtHit;}
47 /// reset array of hitForRec at hit
48 void ResetHitForRecAtHit(void) { fHitForRecAtHit->Delete(); }
49 void AddHitForRecAtHit(const AliMUONHitForRec *hitForRec);
51 /// return the number of hits attached to the track
52 Int_t GetNTrackHits(void) const {return fNTrackHits;}
53 /// set the number of hits attached to the track
54 void SetNTrackHits(Int_t nTrackHits) {fNTrackHits = nTrackHits;}
56 /// return pointeur to track parameters extrapolated to the next station
57 AliMUONTrackParam* GetExtrapTrackParam(void) {return &fExtrapTrackParam;}
58 /// set track parameters extrapolated to next station
59 void SetExtrapTrackParam(AliMUONTrackParam* trackParam) {fExtrapTrackParam = *trackParam;}
61 /// return kTrue if the vertex must be used to constrain the fit, kFalse if not
62 Bool_t GetFitWithVertex(void) const {return fFitWithVertex;}
63 /// set the flag telling whether the vertex must be used to constrain the fit or not
64 void SetFitWithVertex(Bool_t fitWithVertex) { fFitWithVertex = fitWithVertex; }
65 /// return the vertex used during the tracking procedure
66 AliMUONHitForRec* GetVertex(void) const {return fVertex;}
67 void SetVertex(AliMUONHitForRec* vertex);
69 /// return the minimum value of the function minimized by the fit
70 Double_t GetFitFMin(void) const {return fFitFMin;}
71 /// set the minimum value of the function minimized by the fit
72 void SetFitFMin(Double_t chi2) { fFitFMin = chi2; }
73 /// return kTrue if track matches with trigger track, kFalse if not
74 Bool_t GetMatchTrigger(void) const {return fMatchTrigger;}
75 /// set the flag telling whether track matches with trigger track or not
76 void SetMatchTrigger(Bool_t matchTrigger) {fMatchTrigger = matchTrigger;}
77 /// return the chi2 of trigger/track matching
78 Double_t GetChi2MatchTrigger(void) const {return fChi2MatchTrigger;}
79 /// set the chi2 of trigger/track matching
80 void SetChi2MatchTrigger(Double_t chi2MatchTrigger) {fChi2MatchTrigger = chi2MatchTrigger;}
82 Int_t HitsInCommon(AliMUONTrack* track) const;
83 Bool_t* CompatibleTrack(AliMUONTrack* track, Double_t sigma2Cut) const; // return array of compatible chamber
85 /// return track number in TrackRefs
86 Int_t GetTrackID() const {return fTrackID;}
87 /// set track number in TrackRefs
88 void SetTrackID(Int_t trackID) {fTrackID = trackID;}
90 Double_t TryOneHitForRec(AliMUONHitForRec* hitForRec);
91 Double_t TryTwoHitForRec(AliMUONHitForRec* hitForRec1, AliMUONHitForRec* hitForRec2);
93 void RecursiveDump(void) const; // Recursive dump (with track hits)
95 virtual void Print(Option_t* opt="") const;
99 static const Double_t fgkMaxTrackingDistanceBending; ///< Maximum distance to the track to search for compatible hitForRec(s) in bending direction
100 static const Double_t fgkMaxTrackingDistanceNonBending; ///< Maximum distance to the track to search for compatible hitForRec(s) in non bending direction
102 AliMUONTrackParam fTrackParamAtVertex; ///< Track parameters at vertex
103 TClonesArray *fTrackParamAtHit; ///< Track parameters at hit
104 TClonesArray *fHitForRecAtHit; ///< Cluster parameters at hit
105 Int_t fNTrackHits; ///< Number of hits attached to the track
107 AliMUONTrackParam fExtrapTrackParam; //!< Track parameters extrapolated to a given z position
109 Bool_t fFitWithVertex; //!< 1 if using the vertex to constrain the fit, 0 if not
110 AliMUONHitForRec *fVertex; //!< Vertex used during the tracking procedure if required
112 Double_t fFitFMin; ///< minimum value of the function minimized by the fit
113 Bool_t fMatchTrigger; ///< 1 if track matches with trigger track, 0 if not
114 Double_t fChi2MatchTrigger; ///< chi2 of trigger/track matching
116 Int_t fTrackID; ///< track ID = track number in TrackRefs
119 ClassDef(AliMUONTrack, 3) // Reconstructed track in ALICE dimuon spectrometer