/// Reconstructed track in ALICE dimuon spectrometer
////////////////////////////////////////////////////
-#include <TClonesArray.h>
-
#include "AliMUONTrackParam.h" // object belongs to the class
+#include <TClonesArray.h>
class AliMUONHitForRec;
+class AliMUONObjectPair;
class AliMUONTrack : public TObject
{
public:
AliMUONTrack(); // Default constructor
+ AliMUONTrack(AliMUONObjectPair *segment); // Constructor from a segment
virtual ~AliMUONTrack(); // Destructor
- AliMUONTrack (const AliMUONTrack& AliMUONTrack); // copy constructor
- AliMUONTrack& operator=(const AliMUONTrack& AliMUONTrack); // assignment operator
+ AliMUONTrack (const AliMUONTrack& track); // copy constructor
+ AliMUONTrack& operator=(const AliMUONTrack& track); // assignment operator
- AliMUONTrack(AliMUONHitForRec* hitForRec1, AliMUONHitForRec* hitForRec2); // Constructor from a segment
/// return pointeur to track parameters at vertex
- AliMUONTrackParam* GetTrackParamAtVertex(void) {return &fTrackParamAtVertex;}
+ AliMUONTrackParam* GetTrackParamAtVertex() {return &fTrackParamAtVertex;}
/// set track parameters at vertex
- void SetTrackParamAtVertex(AliMUONTrackParam* trackParam) {fTrackParamAtVertex = *trackParam;}
+ void SetTrackParamAtVertex(const AliMUONTrackParam* trackParam) {fTrackParamAtVertex = *trackParam;}
/// return array of track parameters at hit
- TClonesArray* GetTrackParamAtHit(void) const {return fTrackParamAtHit;}
+ TClonesArray* GetTrackParamAtHit() const {return fTrackParamAtHit;}
/// reset array of track parameters at hit
- void ResetTrackParamAtHit(void) { fTrackParamAtHit->Delete(); }
- void AddTrackParamAtHit(AliMUONTrackParam *trackParam, AliMUONHitForRec *hitForRec);
+ void ResetTrackParamAtHit() { fTrackParamAtHit->Delete(); }
+ void AddTrackParamAtHit(const AliMUONTrackParam *trackParam, AliMUONHitForRec *hitForRec);
+ void RemoveTrackParamAtHit(AliMUONTrackParam *trackParam);
+ void UpdateTrackParamAtHit();
+ void UpdateCovTrackParamAtHit();
/// return array of hitForRec at hit
- TClonesArray* GetHitForRecAtHit(void) const {return fHitForRecAtHit;}
+ TClonesArray* GetHitForRecAtHit() const {return fHitForRecAtHit;}
/// reset array of hitForRec at hit
- void ResetHitForRecAtHit(void) { fHitForRecAtHit->Delete(); }
+ void ResetHitForRecAtHit() { fHitForRecAtHit->Delete(); }
void AddHitForRecAtHit(const AliMUONHitForRec *hitForRec);
/// return the number of hits attached to the track
- Int_t GetNTrackHits(void) const {return fNTrackHits;}
+ Int_t GetNTrackHits() 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;}
+ Bool_t GetFitWithVertex() 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);
+ AliMUONHitForRec* GetVertex() const {return fVertex;}
+ void SetVertex(const AliMUONHitForRec* vertex);
+
+ /// return kTrue if the multiple scattering must be accounted for in the fit, kFalse if not
+ Bool_t GetFitWithMCS() const {return fFitWithMCS;}
+ /// set the flag telling whether the multiple scattering must be accounted for in the fit or not
+ void SetFitWithMCS(Bool_t fitWithMCS) {fFitWithMCS = fitWithMCS;}
+
+ Bool_t ComputeHitWeights(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 GetFitFMin(void) const {return fFitFMin;}
+ Double_t GetFitFMin() const {return fGlobalChi2;}
/// set the minimum value of the function minimized by the fit
- void SetFitFMin(Double_t chi2) { fFitFMin = chi2; }
+ void SetFitFMin(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;}
+ 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
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;
+
+ Double_t GetNormalizedChi2() const;
+
Bool_t* CompatibleTrack(AliMUONTrack* track, Double_t sigma2Cut) const; // return array of compatible chamber
/// return track number in TrackRefs
/// high pt decision local trigger
Int_t LoHpt(void) const { return fLocalTrigger >> 24 & 0x03; }
- 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;
virtual void Clear(Option_t* opt="");
+
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
- AliMUONTrackParam fExtrapTrackParam; //!< Track parameters extrapolated to a given z position
-
- Bool_t fFitWithVertex; //!< 1 if using the vertex to constrain the fit, 0 if not
+ Bool_t fFitWithVertex; //!< kTRUE if using the vertex to constrain the fit, kFALSE if not
AliMUONHitForRec *fVertex; //!< Vertex used during the tracking procedure if required
- Double_t fFitFMin; ///< minimum value of the function minimized by the fit
+ Bool_t fFitWithMCS; //!< kTRUE if accounting for multiple scattering in the fit, kFALSE if not
+
+ TMatrixD* fHitWeightsNonBending; //!< weights matrix, in non bending direction, of hits attached to the track
+ //!< (accounting for multiple scattering and hits resolution)
+ TMatrixD* fHitWeightsBending; //!< weights matrix, in bending direction, of hits attached to the track
+ //!< (accounting for multiple scattering and hits 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
Int_t fLocalTrigger; ///< packed local trigger information
- ClassDef(AliMUONTrack,6) // Reconstructed track in ALICE dimuon spectrometer
+
+ // methods
+ Bool_t ComputeHitWeights(TMatrixD& hitWeightsNB, TMatrixD& hitWeightsB, TMatrixD* mcsCovariances = 0, AliMUONHitForRec* discardedHit = 0) const;
+ void ComputeMCSCovariances(TMatrixD& mcsCovariances) const;
+
+
+ ClassDef(AliMUONTrack, 7) // Reconstructed track in ALICE dimuon spectrometer
};
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff