[u/mrichter/AliRoot.git] / MUON / AliMUONTrack.h

#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

/// \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 "AliMUONConstants.h"
#include <TClonesArray.h>

class AliMUONVCluster;
class AliMUONObjectPair;

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();
  
  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(UInt_t requestedStationMask);
  
  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 
  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, Bool_t inSt345 = kFALSE) const;

  Double_t GetNormalizedChi2() const;

  Int_t CompatibleTrack(AliMUONTrack* track, Double_t sigma2Cut, Bool_t compatibleCluster[10]) const;
  
  /// 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:
 
  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
Commit	Line	Data
a9e2aefa	1	#ifndef ALIMUONTRACK_H
	2	#define ALIMUONTRACK_H
	3	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
	6	/$Id$/
30178c30	7	// Revision of includes 07/05/2004
30178c30	8
692de412	9	/// \ingroup rec
	10	/// \class AliMUONTrack
	11	/// \brief Reconstructed track in ALICE dimuon spectrometer
	12	///
	13	////////////////////////////////////////////////////
	14	/// Reconstructed track in ALICE dimuon spectrometer
	15	////////////////////////////////////////////////////
3831f268	16
c1a185bf	17	#include "AliMUONTrackParam.h" // object belongs to the class
c59f70b9	18	#include "AliMUONConstants.h"
ea94c18b	19	#include <TClonesArray.h>
a9e2aefa	20
96ebe67e	21	class AliMUONVCluster;
ea94c18b	22	class AliMUONObjectPair;
a9e2aefa	23
30178c30	24	class AliMUONTrack : public TObject
30178c30	25	{
a9e2aefa	26	public:
d837040f	27	AliMUONTrack(); // Default constructor
a0dc65b4	28	AliMUONTrack(AliMUONObjectPair *segment, Double_t bendingVertexDispersion); // Constructor from a segment
8429a5e4	29	virtual ~AliMUONTrack(); // Destructor
ea94c18b	30	AliMUONTrack (const AliMUONTrack& track); // copy constructor
ea94c18b	31	AliMUONTrack& operator=(const AliMUONTrack& track); // assignment operator
a9e2aefa	32
b1fea02e	33	void Reset();
b1fea02e	34
7332f213	35	TClonesArray* GetTrackParamAtCluster() const;
96ebe67e	36	void AddTrackParamAtCluster(const AliMUONTrackParam &trackParam, AliMUONVCluster &cluster, Bool_t copy = kFALSE);
	37	void RemoveTrackParamAtCluster(AliMUONTrackParam *trackParam);
	38	void UpdateTrackParamAtCluster();
	39	void UpdateCovTrackParamAtCluster();
	40
a0dc65b4	41	Bool_t IsValid(UInt_t requestedStationMask);
7332f213	42
a0dc65b4	43	void TagRemovableClusters(UInt_t requestedStationMask);
7332f213	44
96ebe67e	45	/// return the number of clusters attached to the track
7332f213	46	Int_t GetNClusters() const {return fTrackParamAtCluster ? fTrackParamAtCluster->GetEntriesFast() : 0;}
96ebe67e	47
	48	/// return kTrue if the vertex must be used to constrain the fit, kFalse if not
	49	Bool_t FitWithVertex() const {return fFitWithVertex;}
	50	/// set the flag telling whether the vertex must be used to constrain the fit or not
	51	void FitWithVertex(Bool_t fitWithVertex) { fFitWithVertex = fitWithVertex; }
	52	/// return the vertex resolution square used during the tracking procedure
	53	void GetVertexErrXY2(Double_t &nonBendingErr2, Double_t &bendingErr2) const
	54	{ nonBendingErr2 = fVertexErrXY2[0]; bendingErr2 = fVertexErrXY2[1]; }
	55	/// set the vertex resolution square used during the tracking procedure
	56	void SetVertexErrXY2(Double_t nonBendingErr2, Double_t bendingErr2)
	57	{ fVertexErrXY2[0] = nonBendingErr2; fVertexErrXY2[1] = bendingErr2; }
	58
	59	/// return kTrue if the multiple scattering must be accounted for in the fit, kFalse if not
	60	Bool_t FitWithMCS() const {return fFitWithMCS;}
	61	/// set the flag telling whether the multiple scattering must be accounted for in the fit or not
	62	void FitWithMCS(Bool_t fitWithMCS) {fFitWithMCS = fitWithMCS;}
	63
	64	Bool_t ComputeClusterWeights(TMatrixD* mcsCovariances = 0);
	65	Bool_t ComputeLocalChi2(Bool_t accountForMCS);
	66	Double_t ComputeGlobalChi2(Bool_t accountForMCS);
	67
	68	/// return the minimum value of the function minimized by the fit
	69	Double_t GetGlobalChi2() const {return fGlobalChi2;}
	70	/// set the minimum value of the function minimized by the fit
	71	void SetGlobalChi2(Double_t chi2) { fGlobalChi2 = chi2;}
	72
	73	/// return kTRUE if the track has been improved
	74	Bool_t IsImproved() const {return fImproved;}
	75	/// set the flag telling whether the track has been improved or not
	76	void SetImproved(Bool_t improved) { fImproved = improved;}
	77
	78	/// return 1,2,3 if track matches with trigger track, 0 if not
	79	Int_t GetMatchTrigger(void) const {return fMatchTrigger;}
c6ba19f7	80	/// returns the local trigger number corresponding to the trigger track
96ebe67e	81	Int_t GetLoTrgNum(void) const {return floTrgNum;}
	82	/// set the flag telling whether track matches with trigger track or not
	83	void SetMatchTrigger(Int_t matchTrigger) {fMatchTrigger = matchTrigger;}
	84	/// set the local trigger number corresponding to the trigger track
	85	void SetLoTrgNum(Int_t loTrgNum) {floTrgNum = loTrgNum;}
	86	/// return the chi2 of trigger/track matching
	87	Double_t GetChi2MatchTrigger(void) const {return fChi2MatchTrigger;}
	88	/// set the chi2 of trigger/track matching
	89	void SetChi2MatchTrigger(Double_t chi2MatchTrigger) {fChi2MatchTrigger = chi2MatchTrigger;}
ea94c18b	90
c59f70b9	91	Int_t ClustersInCommon(AliMUONTrack* track, Bool_t inSt345 = kFALSE) const;
ea94c18b	92
96ebe67e	93	Double_t GetNormalizedChi2() const;
ea94c18b	94
c59f70b9	95	Int_t CompatibleTrack(AliMUONTrack* track, Double_t sigma2Cut, Bool_t compatibleCluster[10]) const;
b8dc484b	96
96ebe67e	97	/// return track number in TrackRefs
	98	Int_t GetTrackID() const {return fTrackID;}
	99	/// set track number in TrackRefs
	100	void SetTrackID(Int_t trackID) {fTrackID = trackID;}
6464217e	101
61fed964	102	/// return pointer to track parameters at vertex (can be 0x0)
61fed964	103	AliMUONTrackParam* GetTrackParamAtVertex() {return fTrackParamAtVertex;}
96ebe67e	104	void SetTrackParamAtVertex(const AliMUONTrackParam* trackParam);
	105
	106	/// set word telling which trigger chambers where hit by track
	107	UShort_t GetHitsPatternInTrigCh() const {return fHitsPatternInTrigCh;}
	108	/// set word telling which trigger chambers where hit by track
	109	void SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh) {fHitsPatternInTrigCh = hitsPatternInTrigCh;}
7771752e	110
423b32ca	111	/// set local trigger information for the matched trigger track
96ebe67e	112	void SetLocalTrigger(Int_t loCirc, Int_t loStripX, Int_t loStripY, Int_t loDev, Int_t loLpt, Int_t loHpt);
423b32ca	113	/// return local trigger information for the matched trigger track
61fed964	114	Int_t GetLocalTrigger(void) const { return fLocalTrigger; }
4a335550	115	/// number of triggering circuit
01413742	116	Int_t LoCircuit(void) const { return fLocalTrigger & 0xFF; }
4a335550	117	/// x-strip local trigger
423b32ca	118	Int_t LoStripX(void) const { return fLocalTrigger >> 8 & 0x1F; }
4a335550	119	/// y-strip local trigger
423b32ca	120	Int_t LoStripY(void) const { return fLocalTrigger >> 13 & 0x0F; }
4a335550	121	/// deviation local trigger
423b32ca	122	Int_t LoDev(void) const { return fLocalTrigger >> 17 & 0x1F; }
4a335550	123	/// low pt decision local trigger
423b32ca	124	Int_t LoLpt(void) const { return fLocalTrigger >> 22 & 0x03; }
4a335550	125	/// high pt decision local trigger
423b32ca	126	Int_t LoHpt(void) const { return fLocalTrigger >> 24 & 0x03; }
423b32ca	127
96ebe67e	128	void RecursiveDump(void) const; // Recursive dump (with associated clusters)
6464217e	129
96ebe67e	130	virtual void Print(Option_t* opt="") const;
a9e2aefa	131
d2b1e7bb	132	virtual void Clear(Option_t* opt="");
956019b6	133
ea94c18b	134
a9e2aefa	135	private:
ea94c18b	136
7332f213	137	mutable TClonesArray* fTrackParamAtCluster; ///< Track parameters at cluster
de2cd600	138
96ebe67e	139	Bool_t fFitWithVertex; //!< kTRUE if using the vertex to constrain the fit, kFALSE if not
96ebe67e	140	Double_t fVertexErrXY2[2]; //!< Vertex resolution square used during the tracking procedure if required
208f139e	141
ea94c18b	142	Bool_t fFitWithMCS; //!< kTRUE if accounting for multiple scattering in the fit, kFALSE if not
ea94c18b	143
96ebe67e	144	TMatrixD* fClusterWeightsNonBending; //!< weights matrix, in non bending direction, of clusters attached to the track
	145	//!< (accounting for multiple scattering and cluster resolution)
	146	TMatrixD* fClusterWeightsBending; //!< weights matrix, in bending direction, of clusters attached to the track
	147	//!< (accounting for multiple scattering and cluster resolution)
ea94c18b	148
	149	Double_t fGlobalChi2; ///< Global chi2 of the track
	150
	151	Bool_t fImproved; //!< kTRUE if the track has been improved
	152
423b32ca	153	Int_t fMatchTrigger; ///< 0 track does not match trigger
	154	///< 1 track match but does not pass pt cut
	155	///< 2 track match Low pt cut
	156	///< 3 track match High pt cut
c6ba19f7	157	Int_t floTrgNum; ///< the number of the corresponding loTrg, -1 if no matching
829425a5	158	Double_t fChi2MatchTrigger; ///< chi2 of trigger/track matching
de2cd600	159
829425a5	160	Int_t fTrackID; ///< track ID = track number in TrackRefs
96ebe67e	161
	162	AliMUONTrackParam* fTrackParamAtVertex; //!< Track parameters at vertex
	163
7771752e	164	UShort_t fHitsPatternInTrigCh; ///< Word containing info on the hits left in trigger chambers
423b32ca	165
423b32ca	166	Int_t fLocalTrigger; ///< packed local trigger information
de2cd600	167
ea94c18b	168
ea94c18b	169	// methods
96ebe67e	170	Bool_t ComputeClusterWeights(TMatrixD& clusterWeightsNB, TMatrixD& clusterWeightsB,
96ebe67e	171	TMatrixD* mcsCovariances = 0, AliMUONVCluster* discardedCluster = 0) const;
ea94c18b	172	void ComputeMCSCovariances(TMatrixD& mcsCovariances) const;
	173
	174
96ebe67e	175	ClassDef(AliMUONTrack, 8) // Reconstructed track in ALICE dimuon spectrometer
de2cd600	176	};
a9e2aefa	177
a9e2aefa	178	#endif