Separating run-dependent mapping data from data, which are not
[u/mrichter/AliRoot.git] / MUON / AliMUONTrack.h
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a9e2aefa 1#ifndef ALIMUONTRACK_H
2#define ALIMUONTRACK_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6/*$Id$*/
30178c30 7// Revision of includes 07/05/2004
8
692de412 9/// \ingroup rec
10/// \class AliMUONTrack
11/// \brief Reconstructed track in ALICE dimuon spectrometer
12///
13////////////////////////////////////////////////////
14/// Reconstructed track in ALICE dimuon spectrometer
15////////////////////////////////////////////////////
3831f268 16
c1a185bf 17#include "AliMUONTrackParam.h" // object belongs to the class
ea94c18b 18#include <TClonesArray.h>
a9e2aefa 19
96ebe67e 20class AliMUONVCluster;
ea94c18b 21class AliMUONObjectPair;
a9e2aefa 22
30178c30 23class AliMUONTrack : public TObject
24{
a9e2aefa 25 public:
d837040f 26 AliMUONTrack(); // Default constructor
ea94c18b 27 AliMUONTrack(AliMUONObjectPair *segment); // Constructor from a segment
8429a5e4 28 virtual ~AliMUONTrack(); // Destructor
ea94c18b 29 AliMUONTrack (const AliMUONTrack& track); // copy constructor
30 AliMUONTrack& operator=(const AliMUONTrack& track); // assignment operator
a9e2aefa 31
b1fea02e 32 void Reset();
33
7332f213 34 TClonesArray* GetTrackParamAtCluster() const;
96ebe67e 35 void AddTrackParamAtCluster(const AliMUONTrackParam &trackParam, AliMUONVCluster &cluster, Bool_t copy = kFALSE);
36 void RemoveTrackParamAtCluster(AliMUONTrackParam *trackParam);
37 void UpdateTrackParamAtCluster();
38 void UpdateCovTrackParamAtCluster();
39
7332f213 40 Bool_t IsValid();
41
42 void TagRemovableClusters();
43
96ebe67e 44 /// return the number of clusters attached to the track
7332f213 45 Int_t GetNClusters() const {return fTrackParamAtCluster ? fTrackParamAtCluster->GetEntriesFast() : 0;}
96ebe67e 46
47 /// return kTrue if the vertex must be used to constrain the fit, kFalse if not
48 Bool_t FitWithVertex() const {return fFitWithVertex;}
49 /// set the flag telling whether the vertex must be used to constrain the fit or not
50 void FitWithVertex(Bool_t fitWithVertex) { fFitWithVertex = fitWithVertex; }
51 /// return the vertex resolution square used during the tracking procedure
52 void GetVertexErrXY2(Double_t &nonBendingErr2, Double_t &bendingErr2) const
53 { nonBendingErr2 = fVertexErrXY2[0]; bendingErr2 = fVertexErrXY2[1]; }
54 /// set the vertex resolution square used during the tracking procedure
55 void SetVertexErrXY2(Double_t nonBendingErr2, Double_t bendingErr2)
56 { fVertexErrXY2[0] = nonBendingErr2; fVertexErrXY2[1] = bendingErr2; }
57
58 /// return kTrue if the multiple scattering must be accounted for in the fit, kFalse if not
59 Bool_t FitWithMCS() const {return fFitWithMCS;}
60 /// set the flag telling whether the multiple scattering must be accounted for in the fit or not
61 void FitWithMCS(Bool_t fitWithMCS) {fFitWithMCS = fitWithMCS;}
62
63 Bool_t ComputeClusterWeights(TMatrixD* mcsCovariances = 0);
64 Bool_t ComputeLocalChi2(Bool_t accountForMCS);
65 Double_t ComputeGlobalChi2(Bool_t accountForMCS);
66
67 /// return the minimum value of the function minimized by the fit
68 Double_t GetGlobalChi2() const {return fGlobalChi2;}
69 /// set the minimum value of the function minimized by the fit
70 void SetGlobalChi2(Double_t chi2) { fGlobalChi2 = chi2;}
71
72 /// return kTRUE if the track has been improved
73 Bool_t IsImproved() const {return fImproved;}
74 /// set the flag telling whether the track has been improved or not
75 void SetImproved(Bool_t improved) { fImproved = improved;}
76
77 /// return 1,2,3 if track matches with trigger track, 0 if not
78 Int_t GetMatchTrigger(void) const {return fMatchTrigger;}
c6ba19f7 79 /// returns the local trigger number corresponding to the trigger track
96ebe67e 80 Int_t GetLoTrgNum(void) const {return floTrgNum;}
81 /// set the flag telling whether track matches with trigger track or not
82 void SetMatchTrigger(Int_t matchTrigger) {fMatchTrigger = matchTrigger;}
83 /// set the local trigger number corresponding to the trigger track
84 void SetLoTrgNum(Int_t loTrgNum) {floTrgNum = loTrgNum;}
85 /// return the chi2 of trigger/track matching
86 Double_t GetChi2MatchTrigger(void) const {return fChi2MatchTrigger;}
87 /// set the chi2 of trigger/track matching
88 void SetChi2MatchTrigger(Double_t chi2MatchTrigger) {fChi2MatchTrigger = chi2MatchTrigger;}
ea94c18b 89
96ebe67e 90 Int_t ClustersInCommon(AliMUONTrack* track) const;
ea94c18b 91
96ebe67e 92 Double_t GetNormalizedChi2() const;
ea94c18b 93
96ebe67e 94 Bool_t* CompatibleTrack(AliMUONTrack* track, Double_t sigma2Cut) const; // return array of compatible chamber
b8dc484b 95
96ebe67e 96 /// return track number in TrackRefs
97 Int_t GetTrackID() const {return fTrackID;}
98 /// set track number in TrackRefs
99 void SetTrackID(Int_t trackID) {fTrackID = trackID;}
6464217e 100
61fed964 101 /// return pointer to track parameters at vertex (can be 0x0)
102 AliMUONTrackParam* GetTrackParamAtVertex() {return fTrackParamAtVertex;}
96ebe67e 103 void SetTrackParamAtVertex(const AliMUONTrackParam* trackParam);
104
105 /// set word telling which trigger chambers where hit by track
106 UShort_t GetHitsPatternInTrigCh() const {return fHitsPatternInTrigCh;}
107 /// set word telling which trigger chambers where hit by track
108 void SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh) {fHitsPatternInTrigCh = hitsPatternInTrigCh;}
7771752e 109
423b32ca 110 /// set local trigger information for the matched trigger track
96ebe67e 111 void SetLocalTrigger(Int_t loCirc, Int_t loStripX, Int_t loStripY, Int_t loDev, Int_t loLpt, Int_t loHpt);
423b32ca 112 /// return local trigger information for the matched trigger track
61fed964 113 Int_t GetLocalTrigger(void) const { return fLocalTrigger; }
4a335550 114 /// number of triggering circuit
01413742 115 Int_t LoCircuit(void) const { return fLocalTrigger & 0xFF; }
4a335550 116 /// x-strip local trigger
423b32ca 117 Int_t LoStripX(void) const { return fLocalTrigger >> 8 & 0x1F; }
4a335550 118 /// y-strip local trigger
423b32ca 119 Int_t LoStripY(void) const { return fLocalTrigger >> 13 & 0x0F; }
4a335550 120 /// deviation local trigger
423b32ca 121 Int_t LoDev(void) const { return fLocalTrigger >> 17 & 0x1F; }
4a335550 122 /// low pt decision local trigger
423b32ca 123 Int_t LoLpt(void) const { return fLocalTrigger >> 22 & 0x03; }
4a335550 124 /// high pt decision local trigger
423b32ca 125 Int_t LoHpt(void) const { return fLocalTrigger >> 24 & 0x03; }
126
96ebe67e 127 void RecursiveDump(void) const; // Recursive dump (with associated clusters)
6464217e 128
96ebe67e 129 virtual void Print(Option_t* opt="") const;
a9e2aefa 130
d2b1e7bb 131 virtual void Clear(Option_t* opt="");
956019b6 132
ea94c18b 133
a9e2aefa 134 private:
ea94c18b 135
7332f213 136 mutable TClonesArray* fTrackParamAtCluster; ///< Track parameters at cluster
de2cd600 137
96ebe67e 138 Bool_t fFitWithVertex; //!< kTRUE if using the vertex to constrain the fit, kFALSE if not
139 Double_t fVertexErrXY2[2]; //!< Vertex resolution square used during the tracking procedure if required
208f139e 140
ea94c18b 141 Bool_t fFitWithMCS; //!< kTRUE if accounting for multiple scattering in the fit, kFALSE if not
142
96ebe67e 143 TMatrixD* fClusterWeightsNonBending; //!< weights matrix, in non bending direction, of clusters attached to the track
144 //!< (accounting for multiple scattering and cluster resolution)
145 TMatrixD* fClusterWeightsBending; //!< weights matrix, in bending direction, of clusters attached to the track
146 //!< (accounting for multiple scattering and cluster resolution)
ea94c18b 147
148 Double_t fGlobalChi2; ///< Global chi2 of the track
149
150 Bool_t fImproved; //!< kTRUE if the track has been improved
151
423b32ca 152 Int_t fMatchTrigger; ///< 0 track does not match trigger
153 ///< 1 track match but does not pass pt cut
154 ///< 2 track match Low pt cut
155 ///< 3 track match High pt cut
c6ba19f7 156 Int_t floTrgNum; ///< the number of the corresponding loTrg, -1 if no matching
829425a5 157 Double_t fChi2MatchTrigger; ///< chi2 of trigger/track matching
de2cd600 158
829425a5 159 Int_t fTrackID; ///< track ID = track number in TrackRefs
96ebe67e 160
161 AliMUONTrackParam* fTrackParamAtVertex; //!< Track parameters at vertex
162
7771752e 163 UShort_t fHitsPatternInTrigCh; ///< Word containing info on the hits left in trigger chambers
423b32ca 164
165 Int_t fLocalTrigger; ///< packed local trigger information
de2cd600 166
ea94c18b 167
168 // methods
96ebe67e 169 Bool_t ComputeClusterWeights(TMatrixD& clusterWeightsNB, TMatrixD& clusterWeightsB,
170 TMatrixD* mcsCovariances = 0, AliMUONVCluster* discardedCluster = 0) const;
ea94c18b 171 void ComputeMCSCovariances(TMatrixD& mcsCovariances) const;
172
173
96ebe67e 174 ClassDef(AliMUONTrack, 8) // Reconstructed track in ALICE dimuon spectrometer
de2cd600 175};
a9e2aefa 176
177#endif