Convert fortran functions into C (Christian)
[u/mrichter/AliRoot.git] / MUON / AliMUONTrackParam.h
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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
3831f268 9///////////////////////////////////////////////////
10// Track parameters in ALICE dimuon spectrometer
11///////////////////////////////////////////////////
a9e2aefa 12
3831f268 13#include <TObject.h>
a9e2aefa 14
30178c30 15class AliMUONTrackParam : public TObject
16{
a9e2aefa 17 public:
30178c30 18 AliMUONTrackParam(); // Constructor
d837040f 19 virtual ~AliMUONTrackParam(){} // Destructor
61adb9bd 20
d694b6f6 21 AliMUONTrackParam(const AliMUONTrackParam& rhs);// copy constructor (should be added per default !)
22 AliMUONTrackParam& operator=(const AliMUONTrackParam& rhs);// (should be added per default !)
a9e2aefa 23 // Get and Set methods for data
3831f268 24 Double_t GetInverseBendingMomentum(void) const {return fInverseBendingMomentum;}
25 void SetInverseBendingMomentum(Double_t InverseBendingMomentum) {fInverseBendingMomentum = InverseBendingMomentum;}
26 Double_t GetBendingSlope(void) const {return fBendingSlope;}
27 void SetBendingSlope(Double_t BendingSlope) {fBendingSlope = BendingSlope;}
28 Double_t GetNonBendingSlope(void) const {return fNonBendingSlope;}
29 void SetNonBendingSlope(Double_t NonBendingSlope) {fNonBendingSlope = NonBendingSlope;}
30 Double_t GetZ(void) const {return fZ;}
31 void SetZ(Double_t Z) {fZ = Z;}
32 Double_t GetBendingCoor(void) const {return fBendingCoor;}
33 void SetBendingCoor(Double_t BendingCoor) {fBendingCoor = BendingCoor;}
34 Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;}
35 void SetNonBendingCoor(Double_t NonBendingCoor) {fNonBendingCoor = NonBendingCoor;}
b8dc484b 36 Double_t Px(); // return px
37 Double_t Py(); // return py
38 Double_t Pz(); // return pz
39 Double_t P(); // return total momentum
a9e2aefa 40
41 void ExtrapToZ(Double_t Z);
42 void ExtrapToStation(Int_t Station, AliMUONTrackParam *TrackParam);
889a0215 43 void ExtrapToVertex(Double_t xVtx, Double_t yVtx, Double_t zVtx); // extrapolation to vertex through the absorber (with true vertex)
44 void BransonCorrection(Double_t xVtx, Double_t yVtx, Double_t zVtx); // makes Branson correction with true vertex
45 // returns total momentum after energy loss correction in the absorber
61adb9bd 46 Double_t TotalMomentumEnergyLoss(Double_t thetaLimit, Double_t pTotal, Double_t theta);
b45fd22b 47 void FieldCorrection(Double_t Z); // makes simple magnetic field correction through the absorber
a9e2aefa 48
49 protected:
50 private:
956019b6 51 Double_t fInverseBendingMomentum; // Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
a9e2aefa 52 Double_t fBendingSlope; // Bending slope (cm ** -1)
53 Double_t fNonBendingSlope; // Non bending slope (cm ** -1)
54 Double_t fZ; // Z coordinate (cm)
55 Double_t fBendingCoor; // bending coordinate (cm)
56 Double_t fNonBendingCoor; // non bending coordinate (cm)
57
58 void SetGeant3Parameters(Double_t *VGeant3, Double_t ForwardBackward);
59 void GetFromGeant3Parameters(Double_t *VGeant3, Double_t Charge);
4d03a78e 60 void ExtrapOneStepHelix(Double_t charge, Double_t step,
61 Double_t *vect, Double_t *vout);
62 void ExtrapOneStepHelix3(Double_t field, Double_t step,
63 Double_t *vect, Double_t *vout);
64
65 void ExtrapOneStepRungekutta(Double_t charge, Double_t step,
66 Double_t* vect, Double_t* vout);
67
68 void GetField(Double_t *Position, Double_t *Field);
a9e2aefa 69
044d512b 70 ClassDef(AliMUONTrackParam, 1) // Track parameters in ALICE dimuon spectrometer
a9e2aefa 71 };
72
73#endif