/// Reconstructed track in ALICE dimuon spectrometer
////////////////////////////////////////////////////
-#include <TClonesArray.h>
+#include <TObjArray.h>
+#include <TMatrixD.h>
-#include "AliMUONTrackParam.h" // object belongs to the class
-
-class AliMUONHitForRec;
+class AliMUONVCluster;
+class AliMUONObjectPair;
+class AliMUONTrackParam;
class AliMUONTrack : public TObject
{
public:
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(AliMUONHitForRec* hitForRec1, AliMUONHitForRec* hitForRec2); // Constructor from a segment
-
- /// return pointeur to track parameters at vertex
- AliMUONTrackParam* GetTrackParamAtVertex(void) {return &fTrackParamAtVertex;}
- /// set track parameters at vertex
- void SetTrackParamAtVertex(AliMUONTrackParam* trackParam) {fTrackParamAtVertex = *trackParam;}
-
- /// return array of track parameters at hit
- TClonesArray* GetTrackParamAtHit(void) const {return fTrackParamAtHit;}
- /// reset array of track parameters at hit
- void ResetTrackParamAtHit(void) { fTrackParamAtHit->Delete(); }
- /// add track parameters to the array of track parameters at hit
- void AddTrackParamAtHit(AliMUONTrackParam *trackParam, AliMUONHitForRec *hitForRec);
-
- /// return array of hitForRec at hit
- TClonesArray* GetHitForRecAtHit(void) const {return fHitForRecAtHit;}
- /// reset array of hitForRec at hit
- void ResetHitForRecAtHit(void) { fHitForRecAtHit->Delete(); }
- void AddHitForRecAtHit(const AliMUONHitForRec *hitForRec);
-
- /// return the number of hits attached to the track
- Int_t GetNTrackHits(void) const {return fNTrackHits;}
- /// set the number of hits attached to the track
- void SetNTrackHits(Int_t nTrackHits) {fNTrackHits = nTrackHits;}
-
- /// return pointeur to track parameters extrapolated to the next station
- AliMUONTrackParam* GetExtrapTrackParam(void) {return &fExtrapTrackParam;}
- /// set track parameters extrapolated to next station
- void SetExtrapTrackParam(AliMUONTrackParam* trackParam) {fExtrapTrackParam = *trackParam;}
-
- /// return kTrue if the vertex must be used to constrain the fit, kFalse if not
- Bool_t GetFitWithVertex(void) const {return fFitWithVertex;}
- /// set the flag telling whether the vertex must be used to constrain the fit or not
- void SetFitWithVertex(Bool_t fitWithVertex) { fFitWithVertex = fitWithVertex; }
- /// return the vertex used during the tracking procedure
- AliMUONHitForRec* GetVertex(void) const {return fVertex;}
- void SetVertex(AliMUONHitForRec* vertex);
-
- /// return the minimum value of the function minimized by the fit
- Double_t GetFitFMin(void) const {return fFitFMin;}
- /// set the minimum value of the function minimized by the fit
- void SetFitFMin(Double_t chi2) { fFitFMin = chi2; }
- /// return kTrue if track matches with trigger track, kFalse if not
- Bool_t GetMatchTrigger(void) const {return fMatchTrigger;}
- /// set the flag telling whether track matches with trigger track or not
- void SetMatchTrigger(Bool_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 HitsInCommon(AliMUONTrack* track) 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;}
-
- Double_t TryOneHitForRec(AliMUONHitForRec* hitForRec);
- Double_t TryTwoHitForRec(AliMUONHitForRec* hitForRec1, AliMUONHitForRec* hitForRec2);
-
- void RecursiveDump(void) const; // Recursive dump (with track hits)
-
- virtual void Print(Option_t* opt="") const;
+ AliMUONTrack (const AliMUONTrack& track); // copy constructor
+ AliMUONTrack& operator=(const AliMUONTrack& track); // assignment operator
+
+ void Reset();
+
+ TObjArray* 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(const 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 word telling which trigger chambers where hit by track (from tracker track extrapolation)
+ UInt_t GetHitsPatternInTrigChTrk() const {return fHitsPatternInTrigChTrk;}
+ /// set word telling which trigger chambers where hit by track (from tracker track extrapolation)
+ void SetHitsPatternInTrigChTrk(UInt_t hitsPatternInTrigChTrk) {fHitsPatternInTrigChTrk = hitsPatternInTrigChTrk;}
+
+ /// 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;}
+
+ /// set the flag which is kTRUE if that track shares cluster(s) with another
+ void Connected(Bool_t flag = kTRUE) {fConnected = flag;}
+ /// return the flag which is kTRUE if that track shares cluster(s) with another
+ Bool_t IsConnected() const {return fConnected;}
private:
- static const Double_t fgkMaxTrackingDistanceBending; ///< Maximum distance to the track to search for compatible hitForRec(s) in bending direction
- static const Double_t fgkMaxTrackingDistanceNonBending; ///< Maximum distance to the track to search for compatible hitForRec(s) in non bending direction
- AliMUONTrackParam fTrackParamAtVertex; ///< Track parameters at vertex
- TClonesArray *fTrackParamAtHit; ///< Track parameters at hit
- TClonesArray *fHitForRecAtHit; ///< Cluster parameters at hit
- Int_t fNTrackHits; ///< Number of hits attached to the track
+ static const Double_t fgkMaxChi2; ///< maximum chi2 above which the track can be considered as abnormal
+
+ mutable TObjArray* 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
- AliMUONTrackParam fExtrapTrackParam; //!< Track parameters extrapolated to a given z position
+ 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)
- Bool_t fFitWithVertex; //!< 1 if using the vertex to constrain the fit, 0 if not
- AliMUONHitForRec *fVertex; //!< Vertex used during the tracking procedure if required
+ Double_t fGlobalChi2; ///< Global chi2 of the track
- Double_t fFitFMin; ///< minimum value of the function minimized by the fit
- Bool_t fMatchTrigger; ///< 1 if track matches with trigger track, 0 if not
+ 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; ///< track ID = track number in TrackRefs
+ 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
+ UInt_t fHitsPatternInTrigChTrk; ///< Word containing info on the hits left in trigger chambers (calculated from extrapolated tracker track)
+
+ 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, const AliMUONVCluster* discardedCluster = 0) const;
+ void ComputeMCSCovariances(TMatrixD& mcsCovariances) const;
- ClassDef(AliMUONTrack, 3) // Reconstructed track in ALICE dimuon spectrometer
+ ClassDef(AliMUONTrack, 11) // Reconstructed track in ALICE dimuon spectrometer
};
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff