* See cxx source for full Copyright notice */
/*$Id$*/
+// Revision of includes 07/05/2004
-///////////////////////////////////////////////////
-// Reconstructed track in ALICE dimuon spectrometer
-///////////////////////////////////////////////////
+/// \ingroup rec
+/// \class AliMUONTrack
+/// \brief Reconstructed track in ALICE dimuon spectrometer
+///
+////////////////////////////////////////////////////
+/// Reconstructed track in ALICE dimuon spectrometer
+////////////////////////////////////////////////////
-#include "AliMUONTrackParam.h" // object belongs to the class
+#include <TClonesArray.h>
+#include <TMatrixD.h>
-class TObjArray;
-class TVirtualFitter;
-class AliMUONEventReconstructor;
-class AliMUONHitForRec;
-class AliMUONSegment;
+class AliMUONVCluster;
+class AliMUONObjectPair;
+class AliMUONTrackParam;
-class AliMUONTrack : public TObject {
+class AliMUONTrack : public TObject
+{
public:
- AliMUONTrack(){
- // Constructor
- ;} // Constructor
+ AliMUONTrack(); // Default constructor
+ AliMUONTrack(AliMUONObjectPair *segment, Double_t bendingVertexDispersion); // Constructor from a segment
virtual ~AliMUONTrack(); // Destructor
- AliMUONTrack (const AliMUONTrack& AliMUONTrack); // copy constructor
- AliMUONTrack& operator=(const AliMUONTrack& AliMUONTrack); // assignment operator
-
- AliMUONTrack(AliMUONSegment* BegSegment, AliMUONSegment* EndSegment, AliMUONEventReconstructor* EventReconstructor); // Constructor from two Segment's
- AliMUONTrack(AliMUONSegment* Segment, AliMUONHitForRec* HitForRec, AliMUONEventReconstructor* EventReconstructor); // Constructor from one Segment and one HitForRec
- void Remove(void);
-
- AliMUONEventReconstructor* GetEventReconstructor(void) const {return fEventReconstructor;}
- AliMUONTrackParam* GetTrackParamAtVertex(void) {return &fTrackParamAtVertex;}
- void SetTrackParamAtVertex(void); // Set track parameters at vertex from last stations 4 & 5
- void SetTrackParamAtVertex(AliMUONTrackParam* TrackParam) {fTrackParamAtVertex = *TrackParam;}
-
- TObjArray* GetTrackHitsPtr(void) const {return fTrackHitsPtr;}
- Int_t GetNTrackHits(void) const {return fNTrackHits;}
- Int_t GetFitMCS(void) const {return fFitMCS;}
- Int_t GetFitNParam(void) const {return fFitNParam;}
- Int_t GetFitStart(void) const {return fFitStart;}
- Double_t GetFitFMin(void) const {return fFitFMin;}
- void SetFitMCS(Int_t FitMCS);
- void SetFitNParam(Int_t FitNParam);
- void SetFitStart(Int_t FitStart);
-
- AliMUONTrackParam* GetTrackParamAtFirstHit(void) const;
-
- void RecursiveDump(void) const; // Recursive dump (with track hits)
- void Fit(); // Fit
- void AddSegment(AliMUONSegment* Segment); // Add Segment
- void AddHitForRec(AliMUONHitForRec* HitForRec); // Add HitForRec
- void SetTrackParamAtHit(Int_t indexHit, AliMUONTrackParam *TrackParam) const;
- Int_t HitsInCommon(AliMUONTrack* Track);
-
- static TVirtualFitter* Fitter(void) {return fgFitter;}
-
- protected:
+ AliMUONTrack (const AliMUONTrack& track); // copy constructor
+ AliMUONTrack& operator=(const AliMUONTrack& track); // assignment operator
+
+ void Reset();
+
+ TClonesArray* GetTrackParamAtCluster() const;
+ void AddTrackParamAtCluster(const AliMUONTrackParam &trackParam, AliMUONVCluster &cluster, Bool_t copy = kFALSE);
+ void RemoveTrackParamAtCluster(AliMUONTrackParam *trackParam);
+ Bool_t UpdateTrackParamAtCluster();
+ Bool_t UpdateCovTrackParamAtCluster();
+
+ Bool_t IsValid(UInt_t requestedStationMask, Bool_t request2ChInSameSt45 = kFALSE);
+
+ void TagRemovableClusters(UInt_t requestedStationMask);
+
+ /// return the number of clusters attached to the track
+ Int_t GetNClusters() const {return fTrackParamAtCluster ? fTrackParamAtCluster->GetEntriesFast() : 0;}
+
+ /// return kTrue if the vertex must be used to constrain the fit, kFalse if not
+ Bool_t FitWithVertex() const {return fFitWithVertex;}
+ /// set the flag telling whether the vertex must be used to constrain the fit or not
+ void FitWithVertex(Bool_t fitWithVertex) { fFitWithVertex = fitWithVertex; }
+ /// return the vertex resolution square used during the tracking procedure
+ void GetVertexErrXY2(Double_t &nonBendingErr2, Double_t &bendingErr2) const
+ { nonBendingErr2 = fVertexErrXY2[0]; bendingErr2 = fVertexErrXY2[1]; }
+ /// set the vertex resolution square used during the tracking procedure
+ void SetVertexErrXY2(Double_t nonBendingErr2, Double_t bendingErr2)
+ { fVertexErrXY2[0] = nonBendingErr2; fVertexErrXY2[1] = bendingErr2; }
+
+ /// return kTrue if the multiple scattering must be accounted for in the fit, kFalse if not
+ Bool_t FitWithMCS() const {return fFitWithMCS;}
+ /// set the flag telling whether the multiple scattering must be accounted for in the fit or not
+ void FitWithMCS(Bool_t fitWithMCS) {fFitWithMCS = fitWithMCS;}
+
+ Bool_t ComputeClusterWeights(TMatrixD* mcsCovariances = 0);
+ Bool_t ComputeLocalChi2(Bool_t accountForMCS);
+ Double_t ComputeGlobalChi2(Bool_t accountForMCS);
+
+ /// return the minimum value of the function minimized by the fit
+ Double_t GetGlobalChi2() const {return fGlobalChi2;}
+ /// set the minimum value of the function minimized by the fit
+ void SetGlobalChi2(Double_t chi2) { fGlobalChi2 = chi2;}
+
+ /// return kTRUE if the track has been improved
+ Bool_t IsImproved() const {return fImproved;}
+ /// set the flag telling whether the track has been improved or not
+ void SetImproved(Bool_t improved) { fImproved = improved;}
+
+ /// return 1,2,3 if track matches with trigger track, 0 if not
+ Int_t GetMatchTrigger(void) const {return fMatchTrigger;}
+ /// returns the local trigger number corresponding to the trigger track (obsolete)
+ Int_t GetLoTrgNum(void) const {return LoCircuit();}
+ /// set the flag telling whether track matches with trigger track or not
+ void SetMatchTrigger(Int_t matchTrigger) {fMatchTrigger = matchTrigger;}
+ /// return the chi2 of trigger/track matching
+ Double_t GetChi2MatchTrigger(void) const {return fChi2MatchTrigger;}
+ /// set the chi2 of trigger/track matching
+ void SetChi2MatchTrigger(Double_t chi2MatchTrigger) {fChi2MatchTrigger = chi2MatchTrigger;}
+
+ Int_t ClustersInCommon(AliMUONTrack* track, Int_t stMin = 0, Int_t stMax = 4) const;
+
+ Int_t GetNDF() const;
+ Double_t GetNormalizedChi2() const;
+
+ Int_t FindCompatibleClusters(AliMUONTrack &track, Double_t sigma2Cut, Bool_t compatibleCluster[10]) const;
+ Bool_t Match(AliMUONTrack &track, Double_t sigma2Cut, Int_t &nMatchClusters) const;
+
+ /// return pointer to track parameters at vertex (can be 0x0)
+ AliMUONTrackParam* GetTrackParamAtVertex() const {return fTrackParamAtVertex;}
+ void SetTrackParamAtVertex(const AliMUONTrackParam* trackParam);
+
+ /// set word telling which trigger chambers where hit by track
+ UShort_t GetHitsPatternInTrigCh() const {return fHitsPatternInTrigCh;}
+ /// set word telling which trigger chambers where hit by track
+ void SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh) {fHitsPatternInTrigCh = hitsPatternInTrigCh;}
+
+ /// set local trigger information for the matched trigger track
+ void SetLocalTrigger(Int_t loCirc, Int_t loStripX, Int_t loStripY, Int_t loDev, Int_t loLpt, Int_t loHpt, UChar_t respWithoutChamber=0);
+ /// return local trigger information for the matched trigger track
+ Int_t GetLocalTrigger(void) const { return fLocalTrigger; }
+ /// number of triggering circuit
+ Int_t LoCircuit(void) const { return fLocalTrigger & 0xFF; }
+ /// x-strip local trigger
+ Int_t LoStripX(void) const { return fLocalTrigger >> 8 & 0x1F; }
+ /// y-strip local trigger
+ Int_t LoStripY(void) const { return fLocalTrigger >> 13 & 0x0F; }
+ /// deviation local trigger
+ Int_t LoDev(void) const { return fLocalTrigger >> 17 & 0x1F; }
+ /// low pt decision local trigger
+ Int_t LoLpt(void) const { return fLocalTrigger >> 22 & 0x03; }
+ /// high pt decision local trigger
+ Int_t LoHpt(void) const { return fLocalTrigger >> 24 & 0x03; }
+ /// Word stating if trigger would be fired without one chamber
+ Int_t GetTriggerWithoutChamber(void) const { return fLocalTrigger >> 26 & 0xF; }
+ /// Check if trigger would be fired without chamber (ich [0,3])
+ Bool_t TriggerFiredWithoutChamber(Int_t ich) const { return GetTriggerWithoutChamber() >> (3 - ich) & 0x1; }
+
+ void FindMCLabel();
+ /// set the corresponding MC track number
+ void SetMCLabel(Int_t label) {fTrackID = label;}
+ /// return the corresponding MC track number
+ Int_t GetMCLabel() const {return fTrackID;}
+
+ void RecursiveDump(void) const; // Recursive dump (with associated clusters)
+
+ virtual void Print(Option_t* opt="") const;
+
+ virtual void Clear(Option_t* opt="");
+
+ /// return the maximum chi2 above which the track can be considered as abnormal (due to extrapolation failure, ...)
+ static Double_t MaxChi2() {return fgkMaxChi2;}
+
+ void Connected(Bool_t flag = kTRUE) {fConnected = flag;}
+ Bool_t IsConnected() const {return fConnected;}
+
+
private:
- static TVirtualFitter* fgFitter; // Pointer to track fitter
- AliMUONEventReconstructor* fEventReconstructor; // Pointer to EventReconstructor
- AliMUONTrackParam fTrackParamAtVertex; // Track parameters at vertex
- TObjArray *fTrackHitsPtr; // Pointer to array of pointers to TrackHit's
- Int_t fNTrackHits; // Number of TrackHit's
- Int_t fFitMCS; // 0(1) for fit without(with) multiple Coulomb scattering
- Int_t fFitNParam; // 3(5) for fit with 3(5) parameters
- Int_t fFitStart; // 0 or 1 for fit starting from parameters at vertex (0) or at first TrackHit(1)
- Double_t fFitFMin; // minimum value of the function minimized by the fit
-
- ClassDef(AliMUONTrack, 1) // Reconstructed track in ALICE dimuon spectrometer
- };
+
+ static const Double_t fgkMaxChi2; ///< maximum chi2 above which the track can be considered as abnormal
+
+ mutable TClonesArray* fTrackParamAtCluster; ///< Track parameters at cluster
+
+ Bool_t fFitWithVertex; //!< kTRUE if using the vertex to constrain the fit, kFALSE if not
+ Double_t fVertexErrXY2[2]; //!< Vertex resolution square used during the tracking procedure if required
+
+ Bool_t fFitWithMCS; //!< kTRUE if accounting for multiple scattering in the fit, kFALSE if not
+
+ TMatrixD* fClusterWeightsNonBending; //!< weights matrix, in non bending direction, of clusters attached to the track
+ //!< (accounting for multiple scattering and cluster resolution)
+ TMatrixD* fClusterWeightsBending; //!< weights matrix, in bending direction, of clusters attached to the track
+ //!< (accounting for multiple scattering and cluster resolution)
+
+ Double_t fGlobalChi2; ///< Global chi2 of the track
+
+ Bool_t fImproved; //!< kTRUE if the track has been improved
+
+ Int_t fMatchTrigger; ///< 0 track does not match trigger
+ ///< 1 track match but does not pass pt cut
+ ///< 2 track match Low pt cut
+ ///< 3 track match High pt cut
+ Double_t fChi2MatchTrigger; ///< chi2 of trigger/track matching
+
+ Int_t fTrackID; ///< Point to the corresponding MC track
+
+ AliMUONTrackParam* fTrackParamAtVertex; //!< Track parameters at vertex
+
+ UShort_t fHitsPatternInTrigCh; ///< Word containing info on the hits left in trigger chambers
+
+ Int_t fLocalTrigger; ///< packed local trigger information
+
+ Bool_t fConnected; ///< kTRUE if that track shares cluster(s) with another
+
+ // methods
+ Bool_t ComputeClusterWeights(TMatrixD& clusterWeightsNB, TMatrixD& clusterWeightsB,
+ TMatrixD* mcsCovariances = 0, AliMUONVCluster* discardedCluster = 0) const;
+ void ComputeMCSCovariances(TMatrixD& mcsCovariances) const;
+
+
+ ClassDef(AliMUONTrack, 9) // Reconstructed track in ALICE dimuon spectrometer
+};
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff