* See cxx source for full Copyright notice */
/*$Id$*/
+// Revision of includes 07/05/2004
-#include <TROOT.h>
+/// \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 "AliMUONTrackHit.h"
-#include "AliMUONTrackParam.h"
-class TClonesArray;
-class AliMUONEventReconstructor;
-class AliMUONHitForRec;
-class AliMUONSegment;
+class AliMUONVCluster;
+class AliMUONObjectPair;
-class AliMUONTrack : public TObject {
+class AliMUONTrack : public TObject
+{
public:
- AliMUONTrack(){
- // Constructor
- ;} // Constructor
- virtual ~AliMUONTrack(){
- // Destructor
- ;} // 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
-
- AliMUONEventReconstructor* GetEventReconstructor(void) {return fEventReconstructor;};
- AliMUONTrackParam* GetTrackParamAtVertex(void);
- void SetTrackParamAtVertex(void); // Set track parameters at vertex from last stations 4 & 5
- void SetTrackParamAtVertex(AliMUONTrackParam* TrackParam) {fTrackParamAtVertex = *TrackParam;};
-
- TClonesArray* GetTrackHitsPtr(void);
- Int_t GetNTrackHits(void);
- Int_t GetFitMCS(void) {return fFitMCS;};
- void SetFitMCS(Int_t FitMCS);
-
- AliMUONTrackParam* GetTrackParamAtFirstHit(void);
-
- void RecursiveDump(void); // Recursive dump (with track hits)
- void Fit(AliMUONTrackParam *TrackParam, Int_t NParam); // Fit
- void AddSegment(AliMUONSegment* Segment); // Add Segment
- void AddHitForRec(AliMUONHitForRec* HitForRec); // Add HitForRec
- void SetTrackParamAtHit(Int_t indexHit, AliMUONTrackParam *TrackParam);
-
- protected:
+ AliMUONTrack(); // Default constructor
+ AliMUONTrack(AliMUONObjectPair *segment); // Constructor from a segment
+ virtual ~AliMUONTrack(); // Destructor
+ AliMUONTrack (const AliMUONTrack& track); // copy constructor
+ AliMUONTrack& operator=(const AliMUONTrack& track); // assignment operator
+
+ TClonesArray* GetTrackParamAtCluster() const;
+ void AddTrackParamAtCluster(const AliMUONTrackParam &trackParam, AliMUONVCluster &cluster, Bool_t copy = kFALSE);
+ void RemoveTrackParamAtCluster(AliMUONTrackParam *trackParam);
+ void UpdateTrackParamAtCluster();
+ void UpdateCovTrackParamAtCluster();
+
+ Bool_t IsValid();
+
+ void TagRemovableClusters();
+
+ /// 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
+ Int_t GetLoTrgNum(void) const {return floTrgNum;}
+ /// set the flag telling whether track matches with trigger track or not
+ void SetMatchTrigger(Int_t matchTrigger) {fMatchTrigger = matchTrigger;}
+ /// set the local trigger number corresponding to the trigger track
+ void SetLoTrgNum(Int_t loTrgNum) {floTrgNum = loTrgNum;}
+ /// 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) const;
+
+ Double_t GetNormalizedChi2() const;
+
+ Bool_t* CompatibleTrack(AliMUONTrack* track, Double_t sigma2Cut) const; // return array of compatible chamber
+
+ /// return track number in TrackRefs
+ Int_t GetTrackID() const {return fTrackID;}
+ /// set track number in TrackRefs
+ void SetTrackID(Int_t trackID) {fTrackID = trackID;}
+
+ /// return pointer to track parameters at vertex (can be 0x0)
+ AliMUONTrackParam* GetTrackParamAtVertex() {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);
+ /// 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; }
+
+ void RecursiveDump(void) const; // Recursive dump (with associated clusters)
+
+ virtual void Print(Option_t* opt="") const;
+
+ virtual void Clear(Option_t* opt="");
+
+
private:
- AliMUONEventReconstructor* fEventReconstructor; // Pointer to EventReconstructor
- AliMUONTrackParam fTrackParamAtVertex; // Track parameters at vertex
- TClonesArray *fTrackHitsPtr; // Pointer to array of TrackHit's
- Int_t fNTrackHits; // Number of TrackHit's
- Int_t fFitMCS; // 0(1) for fit without(with) multiple Coulomb scattering
-
- ClassDef(AliMUONTrack, 1) // Class definition in ROOT context
- };
+
+ 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
+ Int_t floTrgNum; ///< the number of the corresponding loTrg, -1 if no matching
+ Double_t fChi2MatchTrigger; ///< chi2 of trigger/track matching
+
+ Int_t fTrackID; ///< track ID = track number in TrackRefs
+
+ 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
+
+
+ // methods
+ Bool_t ComputeClusterWeights(TMatrixD& clusterWeightsNB, TMatrixD& clusterWeightsB,
+ TMatrixD* mcsCovariances = 0, AliMUONVCluster* discardedCluster = 0) const;
+ void ComputeMCSCovariances(TMatrixD& mcsCovariances) const;
+
+
+ ClassDef(AliMUONTrack, 8) // Reconstructed track in ALICE dimuon spectrometer
+};
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff