Geant4  10.01.p01
G4FieldTrackUpdator.cc
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 // $Id: G4FieldTrackUpdator.cc 88999 2015-03-17 11:28:05Z gcosmo $
28 //
29 // M. Asai - first implementation Apr/28/2006
30 //
31 //---------------------------------------------------------------
32 //
33 // G4FieldTrackUpdator.cc
34 //
35 //---------------------------------------------------------------
36 
37 #include "globals.hh"
38 #include "G4FieldTrackUpdator.hh"
39 #include "G4ThreeVector.hh"
40 #include "G4Track.hh"
41 #include "G4DynamicParticle.hh"
42 #include "G4TrackStatus.hh"
43 #include "G4FieldTrack.hh"
44 
46 {
47  G4FieldTrack* ftrk = new G4FieldTrack(
48  trk->GetPosition(),
49  trk->GetGlobalTime(),
50  trk->GetMomentumDirection(),
51  trk->GetKineticEnergy(),
52  trk->GetDynamicParticle()->GetMass(),
53  trk->GetDynamicParticle()->GetCharge(),
55  0.0 // magnetic dipole moment to be implemented
56  );
57  return ftrk;
58 }
59 
61 {
62  const G4DynamicParticle* ptDynamicParticle= trk->GetDynamicParticle();
63 
64  // The following properties must be updated ONCE for each new track (at least)
65  ftrk->SetRestMass(ptDynamicParticle->GetMass());
66 
67  ftrk->UpdateState(
68  trk->GetPosition(),
69  trk->GetGlobalTime(),
70  trk->GetMomentumDirection(),
71  trk->GetKineticEnergy()
72  );
73 
74 #ifdef G4CHECK
75  if( ( trk->GetMomentum() - ftrk->GetMomentum()).mag2() > 1.e-16 * trk->GetMomentum().mag2() ){
76  G4cerr << "ERROR> G4FieldTrackUpdator sees *Disagreement* in momentum " << G4endl;
77  G4cout << " FTupdator: Tracking Momentum= " << trk->GetMomentum() << G4endl;
78  G4cout << " FTupdator: FldTrack Momentum= " << ftrk->GetMomentum() << G4endl;
79  G4cout << " FTupdator: FldTrack-Tracking= " << ftrk->GetMomentum() - trk->GetMomentum() << G4endl;
80  }
81 #endif
82 
84 
85  ftrk->SetChargeAndMoments( ptDynamicParticle->GetCharge(),
86  ptDynamicParticle->GetMagneticMoment());
87  ftrk->SetPDGSpin( ptDynamicParticle->GetParticleDefinition()->GetPDGSpin() );
88  // The charge can change during tracking
89  ftrk->SetSpin( ptDynamicParticle->GetPolarization() );
90 }
91 
92 
G4double GetProperTime() const
const G4DynamicParticle * GetDynamicParticle() const
const G4ThreeVector & GetPosition() const
void SetRestMass(G4double Mass_c2)
static G4FieldTrack * CreateFieldTrack(const G4Track *)
void SetSpin(G4ThreeVector vSpin)
G4double GetKineticEnergy() const
G4GLOB_DLL std::ostream G4cout
G4double GetMass() const
G4double GetCharge() const
const G4ParticleDefinition * GetParticleDefinition() const
G4double GetGlobalTime() const
G4ThreeVector GetMomentum() const
const G4ThreeVector & GetMomentumDirection() const
const G4ThreeVector & GetPolarization() const
G4double GetPDGSpin() const
#define G4endl
Definition: G4ios.hh:61
G4ThreeVector GetMomentum() const
void SetPDGSpin(G4double pdgSpin)
Definition: G4FieldTrack.hh:93
void SetChargeAndMoments(G4double charge, G4double magnetic_dipole_moment=DBL_MAX, G4double electric_dipole_moment=DBL_MAX, G4double magnetic_charge=DBL_MAX)
G4double GetMagneticMoment() const
static void Update(G4FieldTrack *, const G4Track *)
G4GLOB_DLL std::ostream G4cerr
void UpdateState(const G4ThreeVector &pPosition, G4double LaboratoryTimeOfFlight, const G4ThreeVector &pMomentumDirection, G4double kineticEnergy)
void SetProperTimeOfFlight(G4double tofProper)