X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=blobdiff_plain;f=MUON%2FAliMUONTrack.h;h=db348840ab5340d9794c8c2eaed054712a08eebd;hp=128d7f0fc96abe1d4cf034292c666fbc76606460;hb=79b38efde50042883056a1fc0a8d70b8a5edb927;hpb=692de412b81f16738d28897496efdbb2e9e1ba0a diff --git a/MUON/AliMUONTrack.h b/MUON/AliMUONTrack.h index 128d7f0fc96..db348840ab5 100644 --- a/MUON/AliMUONTrack.h +++ b/MUON/AliMUONTrack.h @@ -15,92 +15,179 @@ //////////////////////////////////////////////////// #include +#include -#include "AliMUONTrackParam.h" // object belongs to the class -#include "AliMUONHitForRec.h" // object belongs to the class - -//const Int_t kMaxTrackingChamber=10; - // not used - -class TObjArray; -class TVirtualFitter; -class AliMUONTrackReconstructor; -class AliMUONHitForRec; -class AliMUONSegment; +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(AliMUONSegment* BegSegment, AliMUONSegment* EndSegment, AliMUONTrackReconstructor* TrackReconstructor); // Constructor from two Segment's - AliMUONTrack(AliMUONSegment* Segment, AliMUONHitForRec* HitForRec, AliMUONTrackReconstructor* TrackReconstructor); // Constructor from one Segment and one HitForRec - void Remove(void); - - AliMUONTrackReconstructor* GetTrackReconstructor(void) const {return fTrackReconstructor;} - AliMUONTrackParam* GetTrackParamAtVertex(void) {return &fTrackParamAtVertex;} - void SetTrackParamAtVertex(void); // Set track parameters at vertex from last stations 4 & 5 - void SetTrackParamAtVertex(AliMUONTrackParam* TrackParam) {fTrackParamAtVertex = *TrackParam;} - TClonesArray *GetTrackParamAtHit(void) const {return fTrackParamAtHit;} - TClonesArray *GetHitForRecAtHit(void) const {return fHitForRecAtHit;} - void ResetTrackParamAtHit(void) { fTrackParamAtHit->Delete(); } - void ResetHitForRecAtHit(void) { fHitForRecAtHit->Delete(); } - void AddTrackParamAtHit(const AliMUONTrackParam *trackParam) - {new ((*fTrackParamAtHit)[fTrackParamAtHit->GetEntriesFast()]) AliMUONTrackParam(*trackParam);} - void AddHitForRecAtHit(const AliMUONHitForRec *hitForRec) - {new ((*fHitForRecAtHit)[fHitForRecAtHit->GetEntriesFast()]) AliMUONHitForRec(*hitForRec);} - - TObjArray* GetTrackHitsPtr(void) const {return fTrackHitsPtr;} - Int_t GetNTrackHits(void) const {return fNTrackHits;} - void SetNTrackHits(Int_t nTrackHits) {fNTrackHits = nTrackHits;} - 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;} - Bool_t GetMatchTrigger(void) const {return fMatchTrigger;} + 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;} - void SetFitMCS(Int_t FitMCS); - void SetFitNParam(Int_t FitNParam); - void SetFitStart(Int_t FitStart); + /// 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; } - AliMUONTrackParam* GetTrackParamAtFirstHit(void) const; + 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; - 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) const; - void MatchTriggerTrack(TClonesArray* TriggerTrackArray); - Bool_t* CompatibleTrack(AliMUONTrack* Track, Double_t Sigma2Cut) const; // return array of compatible chamber + 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;} - Int_t GetTrackID() const {return fTrackID;} - void SetTrackID(Int_t trackID) {fTrackID = trackID;} + /// 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;} - static TVirtualFitter* Fitter(void) {return fgFitter;} - protected: private: - static TVirtualFitter* fgFitter; //! Pointer to track fitter - AliMUONTrackReconstructor* fTrackReconstructor; //! Pointer to TrackReconstructor - AliMUONTrackParam fTrackParamAtVertex; // Track parameters at vertex - TClonesArray *fTrackParamAtHit; // Track parameters at hit - TClonesArray *fHitForRecAtHit; // Cluster parameters at hit - 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 - Bool_t fMatchTrigger; // 1 if track matches with trigger track, 0 if not - Double_t fChi2MatchTrigger; // chi2 of trigger/track matching - - Int_t fTrackID; // track ID = track number in TrackRefs - - ClassDef(AliMUONTrack, 2) // 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