* See cxx source for full Copyright notice */
/*$Id$*/
+// Revision of includes 07/05/2004
-#include <TROOT.h>
+/// \ingroup rec
+/// \class AliMUONTrackParam
+/// \brief Track parameters in ALICE dimuon spectrometer
+///
+////////////////////////////////////////////////////
+/// Track parameters in ALICE dimuon spectrometer
+////////////////////////////////////////////////////
-class AliMUONHitForRec;
-class AliMUONSegment;
+#include <TObject.h>
+#include <TMatrixDfwd.h>
+#include "AliMUONHitForRec.h"
-class AliMUONTrackParam : public TObject {
+class AliESDMuonTrack;
+
+class AliMUONTrackParam : public TObject
+{
public:
- AliMUONTrackParam(){
- // Constructor
- ;} // Constructor
- virtual ~AliMUONTrackParam(){
- // Destructor
- ;} // Destructor
+ AliMUONTrackParam(); // Constructor
+ virtual ~AliMUONTrackParam(); // Destructor
+
+ AliMUONTrackParam(const AliMUONTrackParam& theMUONTrackParam);
+ AliMUONTrackParam& operator=(const AliMUONTrackParam& theMUONTrackParam);
+
+ void GetParamFrom(const AliESDMuonTrack& esdMuonTrack);
+ void SetParamFor(AliESDMuonTrack& esdMuonTrack);
// Get and Set methods for data
- Double_t GetInverseBendingMomentum(void);
- void SetInverseBendingMomentum(Double_t InverseBendingMomentum);
- Double_t GetBendingSlope(void);
- void SetBendingSlope(Double_t BendingSlope);
- Double_t GetNonBendingSlope(void);
- void SetNonBendingSlope(Double_t NonBendingSlope);
- Double_t GetZ(void);
- void SetZ(Double_t Z);
- Double_t GetBendingCoor(void);
- void SetBendingCoor(Double_t BendingCoor);
- Double_t GetNonBendingCoor(void);
- void SetNonBendingCoor(Double_t NonBendingCoor);
-
- void ExtrapToZ(Double_t Z);
- void ExtrapToStation(Int_t Station, AliMUONTrackParam *TrackParam);
- void ExtrapToVertex(); // extrapolation to vertex through the absorber
- void BransonCorrection(); // makes Branson correction
- Double_t TotalMomentumEnergyLoss(Double_t rLimit, Double_t pTotal, Double_t theta, Double_t xEndAbsorber, Double_t yEndAbsorber); // returns total momentum after energy loss correction in the absorber
-
- protected:
+ /// return inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
+ Double_t GetInverseBendingMomentum(void) const {return fInverseBendingMomentum;}
+ /// set inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
+ void SetInverseBendingMomentum(Double_t inverseBendingMomentum) {fInverseBendingMomentum = inverseBendingMomentum;}
+ /// return bending slope (cm ** -1)
+ Double_t GetBendingSlope(void) const {return fBendingSlope;}
+ /// set bending slope (cm ** -1)
+ void SetBendingSlope(Double_t bendingSlope) {fBendingSlope = bendingSlope;}
+ /// return non bending slope (cm ** -1)
+ Double_t GetNonBendingSlope(void) const {return fNonBendingSlope;}
+ /// set non bending slope (cm ** -1)
+ void SetNonBendingSlope(Double_t nonBendingSlope) {fNonBendingSlope = nonBendingSlope;}
+ /// return Z coordinate (cm)
+ Double_t GetZ(void) const {return fZ;}
+ /// set Z coordinate (cm)
+ void SetZ(Double_t z) {fZ = z;}
+ /// return bending coordinate (cm)
+ Double_t GetBendingCoor(void) const {return fBendingCoor;}
+ /// set bending coordinate (cm)
+ void SetBendingCoor(Double_t bendingCoor) {fBendingCoor = bendingCoor;}
+ /// return non bending coordinate (cm)
+ Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;}
+ /// set non bending coordinate (cm)
+ void SetNonBendingCoor(Double_t nonBendingCoor) {fNonBendingCoor = nonBendingCoor;}
+
+ void SetTrackParam(AliMUONTrackParam& theMUONTrackParam);
+
+ AliMUONHitForRec* GetHitForRecPtr(void) const;
+ /// set pointeur to associated HitForRec
+ void SetHitForRecPtr(AliMUONHitForRec* hitForRec) {fHitForRecPtr = hitForRec;}
+
+ 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(void) {return (fCovariances) ? kTRUE : kFALSE;}
+ TMatrixD* GetCovariances(void);
+ void SetCovariances(TMatrixD* covariances);
+ void SetCovariances(Double_t matrix[5][5]);
+ void SetVariances(Double_t matrix[5][5]);
+ void DeleteCovariances(void);
+
+ void EvalCovariances(AliMUONHitForRec* hit2);
+
+ /// 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;
+
+
private:
- Double_t fInverseBendingMomentum; // Inverse bending momentum (GeV/c ** -1)
- Double_t fBendingSlope; // Bending slope (cm ** -1)
- Double_t fNonBendingSlope; // Non bending slope (cm ** -1)
- Double_t fZ; // Z coordinate (cm)
- Double_t fBendingCoor; // bending coordinate (cm)
- Double_t fNonBendingCoor; // non bending coordinate (cm)
-
- void SetGeant3Parameters(Double_t *VGeant3, Double_t ForwardBackward);
- void GetFromGeant3Parameters(Double_t *VGeant3, Double_t Charge);
-
- ClassDef(AliMUONTrackParam, 1) // Track parameters in ALICE dimuon spectrometer
- };
+ // Parameters
+ Double_t fNonBendingCoor; ///< Non bending coordinate (cm)
+ Double_t fNonBendingSlope; ///< Non bending slope (cm ** -1)
+ Double_t fBendingCoor; ///< Bending coordinate (cm)
+ Double_t fBendingSlope; ///< Bending slope (cm ** -1)
+ Double_t fInverseBendingMomentum; ///< Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
+ Double_t fZ; ///< Z coordinate (cm)
+
+ /// Covariance matrix of track parameters, ordered as follow:
+ /// <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>
+ TMatrixD *fCovariances; //!
+
+ AliMUONHitForRec *fHitForRecPtr; //!< Pointer to associated HitForRec if any
+
+ ClassDef(AliMUONTrackParam, 2) // Track parameters in ALICE dimuon spectrometer
+};
#endif
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