AliMUONTrack.h

Go to the documentation of this file.

#ifndef ALIMUONTRACK_H
#define ALIMUONTRACK_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/*$Id$*/
// Revision of includes 07/05/2004


#include <TObjArray.h>
#include <TMatrixD.h>

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& 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);
  
  Int_t GetNClusters() const {return fTrackParamAtCluster ? fTrackParamAtCluster->GetEntriesFast() : 0;}

  Bool_t FitWithVertex() const {return fFitWithVertex;}
  void   FitWithVertex(Bool_t fitWithVertex) { fFitWithVertex = fitWithVertex; }
  void   GetVertexErrXY2(Double_t &nonBendingErr2, Double_t &bendingErr2) const
         { nonBendingErr2 = fVertexErrXY2[0]; bendingErr2 = fVertexErrXY2[1]; }
  void   SetVertexErrXY2(Double_t nonBendingErr2, Double_t bendingErr2)
   { fVertexErrXY2[0] = nonBendingErr2; fVertexErrXY2[1] = bendingErr2; }

  Bool_t FitWithMCS() const {return fFitWithMCS;}
  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);

  Double_t GetGlobalChi2() const {return fGlobalChi2;}
  void     SetGlobalChi2(Double_t chi2) { fGlobalChi2 = chi2;}
  
  Bool_t IsImproved() const {return fImproved;}
  void   SetImproved(Bool_t improved) { fImproved = improved;}
  
  Int_t    GetMatchTrigger(void) const {return fMatchTrigger;}
  Int_t    GetLoTrgNum(void) const {return LoCircuit();}
  void     SetMatchTrigger(Int_t matchTrigger) {fMatchTrigger = matchTrigger;}
  Double_t GetChi2MatchTrigger(void) const {return fChi2MatchTrigger;}
  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;
  
  AliMUONTrackParam* GetTrackParamAtVertex() const {return fTrackParamAtVertex;}
  void               SetTrackParamAtVertex(const AliMUONTrackParam* trackParam);

  UShort_t GetHitsPatternInTrigCh() const {return fHitsPatternInTrigCh;}
  void     SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh) {fHitsPatternInTrigCh = hitsPatternInTrigCh;}
  UInt_t GetHitsPatternInTrigChTrk() const {return fHitsPatternInTrigChTrk;}
  void     SetHitsPatternInTrigChTrk(UInt_t hitsPatternInTrigChTrk) {fHitsPatternInTrigChTrk = hitsPatternInTrigChTrk;}

  void  SetLocalTrigger(Int_t loCirc, Int_t loStripX, Int_t loStripY, Int_t loDev, Int_t loLpt, Int_t loHpt, UChar_t respWithoutChamber=0);
  Int_t GetLocalTrigger(void) const { return fLocalTrigger;        }
  Int_t LoCircuit(void) const { return fLocalTrigger & 0xFF;       }
  Int_t LoStripX(void) const  { return fLocalTrigger >>  8 & 0x1F; }
  Int_t LoStripY(void) const  { return fLocalTrigger >> 13 & 0x0F; }
  Int_t LoDev(void)    const  { return fLocalTrigger >> 17 & 0x1F; }
  Int_t LoLpt(void)    const  { return fLocalTrigger >> 22 & 0x03; }
  Int_t LoHpt(void)    const  { return fLocalTrigger >> 24 & 0x03; }
  Int_t GetTriggerWithoutChamber(void) const { return fLocalTrigger >> 26 & 0xF; }
  Bool_t TriggerFiredWithoutChamber(Int_t ich) const { return GetTriggerWithoutChamber() >> (3 - ich) & 0x1; }

  void  FindMCLabel();
  void  SetMCLabel(Int_t label) {fTrackID = label;}
  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="");
  
  static Double_t MaxChi2() {return fgkMaxChi2;}
  
  void   Connected(Bool_t flag = kTRUE) {fConnected = flag;}
  Bool_t IsConnected() const {return fConnected;}


 private:
  
  static const Double_t fgkMaxChi2; 
  
  mutable TObjArray* fTrackParamAtCluster; 
  
  Bool_t   fFitWithVertex;   
  Double_t fVertexErrXY2[2]; 
  
  Bool_t fFitWithMCS; 
  
  TMatrixD* fClusterWeightsNonBending; 
  TMatrixD* fClusterWeightsBending;    
  
  Double_t fGlobalChi2; 
  
  Bool_t fImproved; 
  
  Int_t fMatchTrigger;  
  Double_t fChi2MatchTrigger; 
  
  Int_t fTrackID; 
  
  AliMUONTrackParam* fTrackParamAtVertex; 
  
  UShort_t fHitsPatternInTrigCh; 
  UInt_t fHitsPatternInTrigChTrk; 

  Int_t fLocalTrigger;    
  
  Bool_t fConnected; 
  
  // methods
  Bool_t ComputeClusterWeights(TMatrixD& clusterWeightsNB, TMatrixD& clusterWeightsB,
             TMatrixD* mcsCovariances = 0, const AliMUONVCluster* discardedCluster = 0) const;
  void   ComputeMCSCovariances(TMatrixD& mcsCovariances) const;
  
  
  ClassDef(AliMUONTrack, 11) // Reconstructed track in ALICE dimuon spectrometer
};
  
#endif