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

#ifndef ALIMUONTRACKPARAM_H
#define ALIMUONTRACKPARAM_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 AliMUONTrackParam
/// \brief Track parameters in ALICE dimuon spectrometer
///
////////////////////////////////////////////////////
/// Track parameters in ALICE dimuon spectrometer
////////////////////////////////////////////////////

#include <TObject.h>
#include <TMatrixD.h>

class AliMUONHitForRec;
class AliESDMuonTrack;

class AliMUONTrackParam : public TObject 
{
 public:
  AliMUONTrackParam(); // Constructor
  virtual ~AliMUONTrackParam(); // Destructor
  
  AliMUONTrackParam(const AliMUONTrackParam& theMUONTrackParam);
  AliMUONTrackParam& operator=(const  AliMUONTrackParam& theMUONTrackParam);

  void GetParamFrom(const AliESDMuonTrack& esdMuonTrack);
  void SetParamFor(AliESDMuonTrack& esdMuonTrack) const;
  void GetParamFromUncorrected(const AliESDMuonTrack& esdMuonTrack);
  void SetParamForUncorrected(AliESDMuonTrack& esdMuonTrack) const;

  // Get and Set methods for data
	/// return Z coordinate (cm)
  Double_t GetZ() const {return fZ;}
	/// set Z coordinate (cm)
  void     SetZ(Double_t z) {fZ = z;}
	/// return non bending coordinate (cm)
  Double_t GetNonBendingCoor() const {return fParameters(0,0);}
	/// set non bending coordinate (cm)
  void     SetNonBendingCoor(Double_t nonBendingCoor) {fParameters(0,0) = nonBendingCoor;}
	/// return non bending slope (cm ** -1)
  Double_t GetNonBendingSlope() const {return fParameters(1,0);}
	/// set non bending slope (cm ** -1)
  void     SetNonBendingSlope(Double_t nonBendingSlope) {fParameters(1,0) = nonBendingSlope;}
	/// return bending coordinate (cm)
  Double_t GetBendingCoor() const {return fParameters(2,0);}
	/// set bending coordinate (cm)
  void     SetBendingCoor(Double_t bendingCoor) {fParameters(2,0) = bendingCoor;}
	/// return bending slope (cm ** -1)
  Double_t GetBendingSlope() const {return fParameters(3,0);}
	/// set bending slope (cm ** -1)
  void     SetBendingSlope(Double_t bendingSlope) {fParameters(3,0) = bendingSlope;}
	/// return inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
  Double_t GetInverseBendingMomentum() const {return fParameters(4,0);}
	/// set inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
  void     SetInverseBendingMomentum(Double_t inverseBendingMomentum) {fParameters(4,0) = inverseBendingMomentum;}
	/// return the charge (assumed forward motion)
  Double_t GetCharge() const {return TMath::Sign(1.,fParameters(4,0));}
	/// set the charge (assumed forward motion)
  void     SetCharge(Double_t charge) {if (charge*fParameters(4,0) < 0.) fParameters(4,0) *= -1.;}
  
  	/// return track parameters
  const TMatrixD& GetParameters() const {return fParameters;}
  	/// set track parameters
  void            SetParameters(const TMatrixD& parameters) {fParameters = parameters;}
  	/// add track parameters
  void            AddParameters(const TMatrixD& parameters) {fParameters += parameters;}
  
  Double_t Px() const;  // return px
  Double_t Py() const;  // return py
  Double_t Pz() const;  // return pz
  Double_t P()  const;  // return total momentum

	/// return kTRUE if the covariance matrix exist, kFALSE if not
  Bool_t    CovariancesExist() const {return (fCovariances) ? kTRUE : kFALSE;}
  
  const TMatrixD& GetCovariances() const;
  void            SetCovariances(const TMatrixD& covariances);
  void            SetCovariances(const Double_t matrix[5][5]);
  void            SetVariances(const Double_t matrix[5][5]);
  void            DeleteCovariances();
  
  const TMatrixD& GetPropagator() const;
  void            ResetPropagator();
  void            UpdatePropagator(const TMatrixD& propagator);
  
  const TMatrixD& GetExtrapParameters() const;
  void            SetExtrapParameters(const TMatrixD& parameters);
  
  const TMatrixD& GetExtrapCovariances() const;
  void            SetExtrapCovariances(const TMatrixD& covariances);
  
  const TMatrixD& GetSmoothParameters() const;
  void            SetSmoothParameters(const TMatrixD& parameters);
  
  const TMatrixD& GetSmoothCovariances() const;
  void            SetSmoothCovariances(const TMatrixD& covariances);
  
  AliMUONHitForRec* GetHitForRecPtr() const;
	/// set pointeur to associated HitForRec
  void              SetHitForRecPtr(AliMUONHitForRec* hitForRec) {fHitForRecPtr = hitForRec;}
  
  	/// return kTRUE if the associated hit can be removed from the track it belongs to
  Bool_t IsRemovable() const {return fRemovable;}
  	/// set the flag telling whether the associated hit can be removed from the track it belongs to or not
  void   SetRemovable(Bool_t removable) {fRemovable = removable;}
  
  	/// return the chi2 of the track when the associated HitForRec was attached
  Double_t GetTrackChi2() const {return fTrackChi2;}
  	/// set the chi2 of the track when the associated HitForRec was attached
  void     SetTrackChi2(Double_t chi2) {fTrackChi2 = chi2;}
  	/// return the local chi2 of the associated HitForRec with respect to the track
  Double_t GetLocalChi2() const {return fLocalChi2;}
  	/// set the local chi2 of the associated HitForRec with respect to the track
  void     SetLocalChi2(Double_t chi2) {fLocalChi2 = chi2;}
  
	/// necessary for sorting TClonesArray of TrackHit's
  Bool_t IsSortable () const {return kTRUE;}
  Int_t Compare(const TObject* trackParam) const;

  virtual void Print(Option_t* opt="") const;
 
  virtual void Clear(Option_t* opt="");

 private:
  
  Double_t fZ; ///< Z coordinate (cm)
  
  /// Track parameters ordered as follow:      <pre>
  /// X       = Non bending coordinate   (cm)
  /// SlopeX  = Non bending slope        (cm ** -1)
  /// Y       = Bending coordinate       (cm)
  /// SlopeY  = Bending slope            (cm ** -1)
  /// InvP_yz = Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)  </pre>
  TMatrixD fParameters; ///< \brief Track parameters 
  
  /// Covariance matrix of track parameters, ordered as follow:      <pre>
  ///    <X,X>      <X,SlopeX>        <X,Y>      <X,SlopeY>       <X,InvP_yz>
  /// <X,SlopeX>  <SlopeX,SlopeX>  <Y,SlopeX>  <SlopeX,SlopeY>  <SlopeX,InvP_yz>
  ///    <X,Y>      <Y,SlopeX>        <Y,Y>      <Y,SlopeY>       <Y,InvP_yz>
  /// <X,SlopeY>  <SlopeX,SlopeY>  <Y,SlopeY>  <SlopeY,SlopeY>  <SlopeY,InvP_yz>
  /// <X,InvP_yz> <SlopeX,InvP_yz> <Y,InvP_yz> <SlopeY,InvP_yz> <InvP_yz,InvP_yz>  </pre>
  mutable TMatrixD *fCovariances; ///< \brief Covariance matrix of track parameters 
  
  mutable TMatrixD *fPropagator; //!< Jacobian used to extrapolate the track parameters and covariances to the actual z position
  mutable TMatrixD *fExtrapParameters; //!< Track parameters extrapolated to the actual z position (not filtered by Kalman)
  mutable TMatrixD *fExtrapCovariances; //!< Covariance matrix extrapolated to the actual z position (not filtered by Kalman)
  
  mutable TMatrixD *fSmoothParameters; //!< Track parameters obtained using smoother
  mutable TMatrixD *fSmoothCovariances; //!< Covariance matrix obtained using smoother
  
  AliMUONHitForRec *fHitForRecPtr; //!< Pointer to associated HitForRec if any
  
  Bool_t fRemovable; //!< kTRUE if the associated hit can be removed from the track it belongs to
  
  Double_t fTrackChi2; //!< Chi2 of the track when the associated HitForRec was attached
  Double_t fLocalChi2; //!< Local chi2 of the associated HitForRec with respect to the track
  
  ClassDef(AliMUONTrackParam, 4) // Track parameters in ALICE dimuon spectrometer
};
	
#endif
Commit	Line	Data
a9e2aefa	1	#ifndef ALIMUONTRACKPARAM_H
	2	#define ALIMUONTRACKPARAM_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
a9e2aefa	8
692de412	9	/// \ingroup rec
	10	/// \class AliMUONTrackParam
	11	/// \brief Track parameters in ALICE dimuon spectrometer
	12	///
	13	////////////////////////////////////////////////////
	14	/// Track parameters in ALICE dimuon spectrometer
	15	////////////////////////////////////////////////////
a9e2aefa	16
3831f268	17	#include <TObject.h>
ea94c18b	18	#include <TMatrixD.h>
a9e2aefa	19
ea94c18b	20	class AliMUONHitForRec;
211c52eb	21	class AliESDMuonTrack;
211c52eb	22
30178c30	23	class AliMUONTrackParam : public TObject
30178c30	24	{
a9e2aefa	25	public:
30178c30	26	AliMUONTrackParam(); // Constructor
de2cd600	27	virtual ~AliMUONTrackParam(); // Destructor
61adb9bd	28
de2cd600	29	AliMUONTrackParam(const AliMUONTrackParam& theMUONTrackParam);
de2cd600	30	AliMUONTrackParam& operator=(const AliMUONTrackParam& theMUONTrackParam);
211c52eb	31
211c52eb	32	void GetParamFrom(const AliESDMuonTrack& esdMuonTrack);
ea94c18b	33	void SetParamFor(AliESDMuonTrack& esdMuonTrack) const;
22ccc301	34	void GetParamFromUncorrected(const AliESDMuonTrack& esdMuonTrack);
ea94c18b	35	void SetParamForUncorrected(AliESDMuonTrack& esdMuonTrack) const;
211c52eb	36
a9e2aefa	37	// Get and Set methods for data
2457f726	38	/// return Z coordinate (cm)
ea94c18b	39	Double_t GetZ() const {return fZ;}
2457f726	40	/// set Z coordinate (cm)
208f139e	41	void SetZ(Double_t z) {fZ = z;}
2457f726	42	/// return non bending coordinate (cm)
ea94c18b	43	Double_t GetNonBendingCoor() const {return fParameters(0,0);}
2457f726	44	/// set non bending coordinate (cm)
ea94c18b	45	void SetNonBendingCoor(Double_t nonBendingCoor) {fParameters(0,0) = nonBendingCoor;}
	46	/// return non bending slope (cm ** -1)
	47	Double_t GetNonBendingSlope() const {return fParameters(1,0);}
	48	/// set non bending slope (cm ** -1)
	49	void SetNonBendingSlope(Double_t nonBendingSlope) {fParameters(1,0) = nonBendingSlope;}
	50	/// return bending coordinate (cm)
	51	Double_t GetBendingCoor() const {return fParameters(2,0);}
	52	/// set bending coordinate (cm)
	53	void SetBendingCoor(Double_t bendingCoor) {fParameters(2,0) = bendingCoor;}
	54	/// return bending slope (cm ** -1)
	55	Double_t GetBendingSlope() const {return fParameters(3,0);}
	56	/// set bending slope (cm ** -1)
	57	void SetBendingSlope(Double_t bendingSlope) {fParameters(3,0) = bendingSlope;}
	58	/// return inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
	59	Double_t GetInverseBendingMomentum() const {return fParameters(4,0);}
	60	/// set inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
	61	void SetInverseBendingMomentum(Double_t inverseBendingMomentum) {fParameters(4,0) = inverseBendingMomentum;}
	62	/// return the charge (assumed forward motion)
	63	Double_t GetCharge() const {return TMath::Sign(1.,fParameters(4,0));}
	64	/// set the charge (assumed forward motion)
	65	void SetCharge(Double_t charge) {if (chargefParameters(4,0) < 0.) fParameters(4,0) = -1.;}
208f139e	66
ea94c18b	67	/// return track parameters
	68	const TMatrixD& GetParameters() const {return fParameters;}
	69	/// set track parameters
	70	void SetParameters(const TMatrixD& parameters) {fParameters = parameters;}
	71	/// add track parameters
	72	void AddParameters(const TMatrixD& parameters) {fParameters += parameters;}
de2cd600	73
6464217e	74	Double_t Px() const; // return px
	75	Double_t Py() const; // return py
	76	Double_t Pz() const; // return pz
	77	Double_t P() const; // return total momentum
a9e2aefa	78
208f139e	79	/// return kTRUE if the covariance matrix exist, kFALSE if not
ea94c18b	80	Bool_t CovariancesExist() const {return (fCovariances) ? kTRUE : kFALSE;}
	81
	82	const TMatrixD& GetCovariances() const;
	83	void SetCovariances(const TMatrixD& covariances);
	84	void SetCovariances(const Double_t matrix[5][5]);
	85	void SetVariances(const Double_t matrix[5][5]);
	86	void DeleteCovariances();
	87
	88	const TMatrixD& GetPropagator() const;
	89	void ResetPropagator();
	90	void UpdatePropagator(const TMatrixD& propagator);
	91
	92	const TMatrixD& GetExtrapParameters() const;
	93	void SetExtrapParameters(const TMatrixD& parameters);
	94
	95	const TMatrixD& GetExtrapCovariances() const;
	96	void SetExtrapCovariances(const TMatrixD& covariances);
	97
	98	const TMatrixD& GetSmoothParameters() const;
	99	void SetSmoothParameters(const TMatrixD& parameters);
	100
	101	const TMatrixD& GetSmoothCovariances() const;
	102	void SetSmoothCovariances(const TMatrixD& covariances);
	103
	104	AliMUONHitForRec* GetHitForRecPtr() const;
	105	/// set pointeur to associated HitForRec
	106	void SetHitForRecPtr(AliMUONHitForRec* hitForRec) {fHitForRecPtr = hitForRec;}
	107
	108	/// return kTRUE if the associated hit can be removed from the track it belongs to
	109	Bool_t IsRemovable() const {return fRemovable;}
	110	/// set the flag telling whether the associated hit can be removed from the track it belongs to or not
	111	void SetRemovable(Bool_t removable) {fRemovable = removable;}
	112
	113	/// return the chi2 of the track when the associated HitForRec was attached
	114	Double_t GetTrackChi2() const {return fTrackChi2;}
	115	/// set the chi2 of the track when the associated HitForRec was attached
	116	void SetTrackChi2(Double_t chi2) {fTrackChi2 = chi2;}
	117	/// return the local chi2 of the associated HitForRec with respect to the track
	118	Double_t GetLocalChi2() const {return fLocalChi2;}
	119	/// set the local chi2 of the associated HitForRec with respect to the track
	120	void SetLocalChi2(Double_t chi2) {fLocalChi2 = chi2;}
	121
2457f726	122	/// necessary for sorting TClonesArray of TrackHit's
2457f726	123	Bool_t IsSortable () const {return kTRUE;}
208f139e	124	Int_t Compare(const TObject* trackParam) const;
de2cd600	125
1a38e749	126	virtual void Print(Option_t* opt="") const;
1a38e749	127
686772dc	128	virtual void Clear(Option_t* opt="");
1a38e749	129
a9e2aefa	130	private:
ea94c18b	131
829425a5	132	Double_t fZ; ///< Z coordinate (cm)
208f139e	133
ea94c18b	134	/// Track parameters ordered as follow: <pre>
	135	/// X = Non bending coordinate (cm)
	136	/// SlopeX = Non bending slope (cm ** -1)
	137	/// Y = Bending coordinate (cm)
	138	/// SlopeY = Bending slope (cm ** -1)
	139	/// InvP_yz = Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion) </pre>
	140	TMatrixD fParameters; ///< \brief Track parameters
	141
b58638a9	142	/// Covariance matrix of track parameters, ordered as follow: <pre>
208f139e	143	/// <X,X> <X,SlopeX> <X,Y> <X,SlopeY> <X,InvP_yz>
	144	/// <X,SlopeX> <SlopeX,SlopeX> <Y,SlopeX> <SlopeX,SlopeY> <SlopeX,InvP_yz>
	145	/// <X,Y> <Y,SlopeX> <Y,Y> <Y,SlopeY> <Y,InvP_yz>
	146	/// <X,SlopeY> <SlopeX,SlopeY> <Y,SlopeY> <SlopeY,SlopeY> <SlopeY,InvP_yz>
b58638a9	147	/// <X,InvP_yz> <SlopeX,InvP_yz> <Y,InvP_yz> <SlopeY,InvP_yz> <InvP_yz,InvP_yz> </pre>
686772dc	148	mutable TMatrixD *fCovariances; ///< \brief Covariance matrix of track parameters
208f139e	149
ea94c18b	150	mutable TMatrixD *fPropagator; //!< Jacobian used to extrapolate the track parameters and covariances to the actual z position
	151	mutable TMatrixD *fExtrapParameters; //!< Track parameters extrapolated to the actual z position (not filtered by Kalman)
	152	mutable TMatrixD *fExtrapCovariances; //!< Covariance matrix extrapolated to the actual z position (not filtered by Kalman)
	153
	154	mutable TMatrixD *fSmoothParameters; //!< Track parameters obtained using smoother
	155	mutable TMatrixD *fSmoothCovariances; //!< Covariance matrix obtained using smoother
	156
de2cd600	157	AliMUONHitForRec *fHitForRecPtr; //!< Pointer to associated HitForRec if any
de2cd600	158
ea94c18b	159	Bool_t fRemovable; //!< kTRUE if the associated hit can be removed from the track it belongs to
	160
	161	Double_t fTrackChi2; //!< Chi2 of the track when the associated HitForRec was attached
	162	Double_t fLocalChi2; //!< Local chi2 of the associated HitForRec with respect to the track
	163
	164	ClassDef(AliMUONTrackParam, 4) // Track parameters in ALICE dimuon spectrometer
37827b29	165	};
a9e2aefa	166
a9e2aefa	167	#endif