Geant4 Cross Reference

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Geant4/geometry/magneticfield/src/G4FieldTrack.cc

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Diff markup

Differences between /geometry/magneticfield/src/G4FieldTrack.cc (Version 11.3.0) and /geometry/magneticfield/src/G4FieldTrack.cc (Version 4.0.p1)


  1 //                                                  1 //
  2 // *******************************************      2 // ********************************************************************
  3 // * License and Disclaimer                    <<   3 // * DISCLAIMER                                                       *
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 15 // * use.  Please see the license in the file  <<  14 // * use.                                                             *
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 17 // *                                               15 // *                                                                  *
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 19 // * technical work of the GEANT4 collaboratio <<  17 // * GEANT4 collaboration.                                            *
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 24 // *******************************************     21 // ********************************************************************
 25 //                                                 22 //
 26 // G4FieldTrack implementation                 << 
 27 //                                                 23 //
 28 // Author: John Apostolakis, CERN - First vers <<  24 // $Id: G4FieldTrack.cc,v 1.4 2001/07/11 09:59:11 gunter Exp $
 29 // ------------------------------------------- <<  25 // GEANT4 tag $Name: geant4-04-00 $
 30                                                <<  26 //
 31 #include "G4FieldTrack.hh"                         27 #include "G4FieldTrack.hh"
 32                                                    28 
 33 std::ostream& operator<<( std::ostream& os, co <<  29 G4std::ostream& operator<<( G4std::ostream& os, G4FieldTrack& SixVec)
 34 {                                                  30 {
 35      const G4double* SixV = SixVec.SixVector;  <<  31      G4double *SixV = SixVec.SixVector;
 36      const G4int precPos= 9;   // For position <<  32      os << " X= " << SixV[0] << " " << SixV[1] << " " << SixV[2] << " ";
 37      const G4int precEp=  9;   // For Energy / <<  33      os << " V= " << SixV[3] << " " << SixV[4] << " " << SixV[5] << " ";
 38      const G4int precLen= 12;  // For Length a << 
 39      const G4int precSpin= 9;  // For polarisa << 
 40      const G4int precTime= 6;  // For time of  << 
 41      const G4long oldpr= os.precision(precPos) << 
 42      os << " ( ";                              << 
 43      os << " X= " << SixV[0] << " " << SixV[1] << 
 44                   << SixV[2] << " ";  // Posit << 
 45      os.precision(precEp);                     << 
 46      os << " P= " << SixV[3] << " " << SixV[4] << 
 47                   << SixV[5] << " ";  // Momen << 
 48      os << " Pmag= "                           << 
 49         << G4ThreeVector(SixV[3], SixV[4], Six << 
 50      os << " Ekin= " << SixVec.fKineticEnergy  << 
 51      os.precision(precLen);                    << 
 52      os << " l= " << SixVec.GetCurveLength();      34      os << " l= " << SixVec.GetCurveLength();
 53      os.precision(6);                          << 
 54      os << " m0= " <<   SixVec.fRestMass_c2;   << 
 55      os << " (Pdir-1)= " <<  SixVec.fMomentumD << 
 56      if( SixVec.fLabTimeOfFlight > 0.0 )       << 
 57      {                                         << 
 58        os.precision(precTime);                 << 
 59      }                                         << 
 60      else                                      << 
 61      {                                         << 
 62        os.precision(3);                        << 
 63      }                                         << 
 64      os << " t_lab= "    << SixVec.fLabTimeOfF << 
 65      os << " t_proper= " << SixVec.fProperTime << 
 66      G4ThreeVector pol= SixVec.GetPolarization << 
 67      if( pol.mag2() > 0.0 )                    << 
 68      {                                         << 
 69         os.precision(precSpin);                << 
 70         os << " PolV= " << pol; // SixVec.GetP << 
 71      }                                         << 
 72      else                                      << 
 73      {                                         << 
 74         os << " PolV= (0,0,0) ";               << 
 75      }                                         << 
 76      os << " ) ";                              << 
 77      os.precision(oldpr);                      << 
 78      return os;                                    35      return os;
 79 }                                              << 
 80                                                << 
 81 G4FieldTrack::G4FieldTrack( const G4ThreeVecto << 
 82                 G4double       LaboratoryTimeO << 
 83           const G4ThreeVector& pMomentumDirect << 
 84                 G4double       kineticEnergy,  << 
 85                 G4double       restMass_c2,    << 
 86                       G4double       charge,   << 
 87           const G4ThreeVector& vecPolarization << 
 88                 G4double       magnetic_dipole << 
 89                                   G4double     << 
 90                                   G4double     << 
 91 :  fDistanceAlongCurve(curve_length),          << 
 92    fKineticEnergy(kineticEnergy),              << 
 93    fRestMass_c2(restMass_c2),                  << 
 94    fLabTimeOfFlight(LaboratoryTimeOfFlight),   << 
 95    fProperTimeOfFlight(0.),                    << 
 96    // fMomentumDir(pMomentumDirection),        << 
 97    fChargeState(  charge, magnetic_dipole_mome << 
 98    // fChargeState(  charge, magnetic_dipole_m << 
 99    // fPDGSpin( pdgSpin )                      << 
100 {                                              << 
101   UpdateFourMomentum( kineticEnergy, pMomentum << 
102     // Sets momentum direction as well.        << 
103                                                << 
104   SetPosition( pPosition );                    << 
105   SetPolarization( vecPolarization );          << 
106 }                                              << 
107                                                << 
108 G4FieldTrack::G4FieldTrack( const G4ThreeVecto << 
109                             const G4ThreeVecto << 
110                                   G4double     << 
111                                   G4double     << 
112                             const G4double     << 
113                                   G4double,    << 
114                                   G4double     << 
115                                   G4double     << 
116                             const G4ThreeVecto << 
117                                   G4double     << 
118  : fDistanceAlongCurve(curve_length),          << 
119    fKineticEnergy(kineticEnergy),              << 
120    fRestMass_c2(restMass_c2),                  << 
121    fLabTimeOfFlight(pLaboratoryTimeOfFlight),  << 
122    fProperTimeOfFlight(pProperTimeOfFlight),   << 
123    fChargeState( DBL_MAX, DBL_MAX, -1.0 ) //   << 
124 {                                              << 
125   UpdateFourMomentum( kineticEnergy, pMomentum << 
126     // Sets momentum direction as well.        << 
127                                                << 
128   SetPosition( pPosition );                    << 
129   fChargeState.SetPDGSpin( pdgSpin );          << 
130                                                << 
131   G4ThreeVector PolarVec(0.0, 0.0, 0.0);       << 
132   if( pPolarization != nullptr )  { PolarVec=  << 
133   SetPolarization( PolarVec );                 << 
134 }                                              << 
135                                                << 
136 G4FieldTrack::G4FieldTrack( char )             << 
137   : fKineticEnergy(0.), fRestMass_c2(0.), fLab << 
138     fProperTimeOfFlight(0.), fChargeState( DBL << 
139 {                                              << 
140   G4ThreeVector Zero(0.0, 0.0, 0.0);           << 
141   SetCurvePnt( Zero, Zero, 0.0 );              << 
142   SetPolarization( Zero );                     << 
143   // fInitialMomentumMag = 0.00; // Invalid    << 
144   // fLastMomentumMag = 0.0;                   << 
145 }                                              << 
146                                                << 
147 void G4FieldTrack::                            << 
148      SetChargeAndMoments(G4double charge,      << 
149        G4double magnetic_dipole_moment, // def << 
150        G4double electric_dipole_moment, // dit << 
151        G4double magnetic_charge )       // dit << 
152 {                                              << 
153   fChargeState.SetChargesAndMoments( charge,   << 
154                                      magnetic_ << 
155                                      electric_ << 
156                                      magnetic_ << 
157                                                << 
158   // NOTE: Leaves Spin unchanged !             << 
159   //                                           << 
160   // G4double pdgSpin= fChargeState.GetSpin(); << 
161   // New Property of ChargeState (not well doc << 
162                                                << 
163   // IDEA: Improve the implementation using ha << 
164   //   -- and handle to the old one (which can << 
165   //      must not be left to hang loose       << 
166   //                                           << 
167   // fpChargeState= new G4ChargeState(  charge << 
168   //           electric_dipole_moment, magneti << 
169 }                                              << 
170                                                << 
171 // Load values from array                      << 
172 //                                             << 
173 // Note that momentum direction must-be/is nor << 
174 //                                             << 
175 void G4FieldTrack::LoadFromArray(const G4doubl << 
176                                        G4int n << 
177 {                                              << 
178   // Fill the variables not integrated with ze << 
179   //                                           << 
180   G4double valArr[ncompSVEC];                  << 
181   for(G4int i=0; i<noVarsIntegrated; ++i)      << 
182   {                                            << 
183      valArr[i] = valArrIn[i];                  << 
184   }                                            << 
185   for(G4int i=noVarsIntegrated; i<ncompSVEC; + << 
186   {                                            << 
187      valArr[i] = 0.0;                          << 
188   }                                            << 
189                                                << 
190   SixVector[0] = valArr[0];                    << 
191   SixVector[1] = valArr[1];                    << 
192   SixVector[2] = valArr[2];                    << 
193   SixVector[3] = valArr[3];                    << 
194   SixVector[4] = valArr[4];                    << 
195   SixVector[5] = valArr[5];                    << 
196                                                << 
197   G4ThreeVector Momentum(valArr[3],valArr[4],v << 
198                                                << 
199   G4double momentum_square= Momentum.mag2();   << 
200   fMomentumDir= Momentum.unit();               << 
201                                                << 
202   fKineticEnergy = momentum_square             << 
203                  / (std::sqrt(momentum_square+ << 
204                    + fRestMass_c2 );           << 
205     // The above equation is stable for small  << 
206                                                << 
207   // The following components may or may not b << 
208   // integrated over -- integration is optiona << 
209   // fKineticEnergy = valArr[6];               << 
210                                                << 
211   fLabTimeOfFlight = valArr[7];                << 
212   fProperTimeOfFlight = valArr[8];             << 
213   G4ThreeVector vecPolarization= G4ThreeVector << 
214   SetPolarization( vecPolarization );          << 
215                                                << 
216   // fMomentumDir=G4ThreeVector(valArr[13],val << 
217   // fDistanceAlongCurve= valArr[];            << 
218 }                                                  36 }
219                                                    37