X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=MUON%2FAliMUONTrackParam.h;h=1fa228611c1a1a90073dc81b8a3674ffad38c609;hb=d58553da35f2191de733365f85a2fb09d4f247ed;hp=42106540ffc082a4b5ca77be660b7d213841114f;hpb=de2cd600300eb8ab97d08787495cd985aa804dd8;p=u%2Fmrichter%2FAliRoot.git diff --git a/MUON/AliMUONTrackParam.h b/MUON/AliMUONTrackParam.h index 42106540ffc..1fa228611c1 100644 --- a/MUON/AliMUONTrackParam.h +++ b/MUON/AliMUONTrackParam.h @@ -15,10 +15,9 @@ //////////////////////////////////////////////////// #include -#include "AliMUONHitForRec.h" +#include -class AliESDMuonTrack; -class AliMagF; +class AliMUONVCluster; class AliMUONTrackParam : public TObject { @@ -29,75 +28,137 @@ class AliMUONTrackParam : public TObject 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) const {return fInverseBendingMomentum;} - void SetInverseBendingMomentum(Double_t InverseBendingMomentum) {fInverseBendingMomentum = InverseBendingMomentum;} - Double_t GetBendingSlope(void) const {return fBendingSlope;} - void SetBendingSlope(Double_t BendingSlope) {fBendingSlope = BendingSlope;} - Double_t GetNonBendingSlope(void) const {return fNonBendingSlope;} - void SetNonBendingSlope(Double_t NonBendingSlope) {fNonBendingSlope = NonBendingSlope;} - Double_t GetZ(void) const {return fZ;} - void SetZ(Double_t Z) {fZ = Z;} - Double_t GetBendingCoor(void) const {return fBendingCoor;} - void SetBendingCoor(Double_t BendingCoor) {fBendingCoor = BendingCoor;} - Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;} - void SetNonBendingCoor(Double_t NonBendingCoor) {fNonBendingCoor = NonBendingCoor;} - void SetTrackParam(AliMUONTrackParam& TrackParam); - AliMUONHitForRec* GetHitForRecPtr(void) const; - void SetHitForRecPtr(AliMUONHitForRec* HitForRec) {fHitForRecPtr = HitForRec;} + /// 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 - Bool_t IsSortable () const {return kTRUE;} // necessary for sorting TClonesArray of TrackHit's - Int_t Compare(const TObject* TrackParam) const; // "Compare" function for sorting - - void ExtrapToZ(Double_t Z); - void ExtrapToStation(Int_t Station, AliMUONTrackParam *TrackParam); - void ExtrapToVertex(Double_t xVtx, Double_t yVtx, Double_t zVtx); // extrapolation to vertex through the absorber (with true vertex) - void BransonCorrection(Double_t xVtx, Double_t yVtx, Double_t zVtx); // makes Branson correction with true vertex - // returns total momentum after energy loss correction in the absorber - Double_t TotalMomentumEnergyLoss(Double_t thetaLimit, Double_t pTotal, Double_t theta); - void FieldCorrection(Double_t Z); // makes simple magnetic field correction through the absorber + /// 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); + + /// get pointeur to associated cluster + AliMUONVCluster* GetClusterPtr() const {return fClusterPtr;} + void SetClusterPtr(AliMUONVCluster* cluster, Bool_t owner = kFALSE); + + /// return kTRUE if the associated cluster can be removed from the track it belongs to + Bool_t IsRemovable() const {return fRemovable;} + /// set the flag telling whether the associated cluster 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 cluster was attached + Double_t GetTrackChi2() const {return fTrackChi2;} + /// set the chi2 of the track when the associated cluster was attached + void SetTrackChi2(Double_t chi2) {fTrackChi2 = chi2;} + /// return the local chi2 of the associated cluster with respect to the track + Double_t GetLocalChi2() const {return fLocalChi2;} + /// set the local chi2 of the associated cluster with respect to the track + void SetLocalChi2(Double_t chi2) {fLocalChi2 = chi2;} + + /// necessary for sorting TClonesArray of AliMUONTrackParam + Bool_t IsSortable () const {return kTRUE;} + Int_t Compare(const TObject* trackParam) const; - void ExtrapOneStepHelix(Double_t charge, Double_t step, - Double_t *vect, Double_t *vout) const; - void ExtrapOneStepHelix3(Double_t field, Double_t step, - Double_t *vect, Double_t *vout) const; + Bool_t CompatibleTrackParam(const AliMUONTrackParam &trackParam, Double_t sigma2Cut, Double_t &normChi2) const; - void ExtrapOneStepRungekutta(Double_t charge, Double_t step, - Double_t* vect, Double_t* vout) const; - virtual void Print(Option_t* opt="") const; - void SetField(const AliMagF* magField) {fkField = magField;} + virtual void Clear(Option_t* opt=""); - - protected: private: - Double_t fInverseBendingMomentum; ///< Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion) - 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) - - const AliMagF* fkField; //!< field map - - void SetGeant3Parameters(Double_t *VGeant3, Double_t ForwardBackward); - void GetFromGeant3Parameters(Double_t *VGeant3, Double_t Charge); - - void GetField(Double_t *Position, Double_t *Field) const; - AliMUONHitForRec *fHitForRecPtr; //!< Pointer to associated HitForRec if any + /// Track parameters ordered as follow: 
+  /// 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)
+ TMatrixD fParameters; ///< \brief Track parameters + + /// Covariance matrix of track parameters, ordered as follow: 
+  ///                               
+  ///         
+  ///                               
+  ///         
+  ///
+ 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 + + AliMUONVCluster *fClusterPtr; //!< Pointer to associated cluster if any + Bool_t fOwnCluster; //!< Ownership of the associated cluster + + Bool_t fRemovable; //!< kTRUE if the associated cluster can be removed from the track it belongs to + + Double_t fTrackChi2; //!< Chi2 of the track when the associated cluster was attached + Double_t fLocalChi2; //!< Local chi2 of the associated cluster with respect to the track - ClassDef(AliMUONTrackParam, 2) // Track parameters in ALICE dimuon spectrometer - }; + ClassDef(AliMUONTrackParam, 4) // Track parameters in ALICE dimuon spectrometer +}; #endif