Geant4 Cross Reference

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Geant4/processes/parameterisation/src/G4FastStep.cc

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Diff markup

Differences between /processes/parameterisation/src/G4FastStep.cc (Version 11.3.0) and /processes/parameterisation/src/G4FastStep.cc (Version 7.0)


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  4 // *                                                4 // *                                                                  *
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 15 // * use.  Please see the license in the file  <<  14 // * use.                                                             *
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 19 // * technical work of the GEANT4 collaboratio <<  17 // * GEANT4 collaboration.                                            *
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 25 //                                                 22 //
 26 //                                                 23 //
                                                   >>  24 // $Id: G4FastStep.cc,v 1.14 2004/12/07 08:22:33 gcosmo Exp $
                                                   >>  25 // GEANT4 tag $Name: geant4-07-00-cand-03 $
 27 //                                                 26 //
 28 //--------------------------------------------     27 //---------------------------------------------------------------
 29 //                                                 28 //
 30 //  G4FastStep.cc                                  29 //  G4FastStep.cc
 31 //                                                 30 //
 32 //  Description:                                   31 //  Description:
 33 //    Encapsulates a G4ParticleChange and insu     32 //    Encapsulates a G4ParticleChange and insure friendly interface
 34 //    methods to manage the primary/secondarie <<  33 //    methods to manage the primary/secondaries final state for 
 35 //    Fast Simulation Models.                      34 //    Fast Simulation Models.
 36 //                                                 35 //
 37 //  History:                                       36 //  History:
 38 //    Oct 97: Verderi && MoraDeFreitas - First     37 //    Oct 97: Verderi && MoraDeFreitas - First Implementation.
 39 //    Apr 98: MoraDeFreitas - G4FastStep becom     38 //    Apr 98: MoraDeFreitas - G4FastStep becomes the G4ParticleChange
 40 //                      for the Fast Simulatio     39 //                      for the Fast Simulation Process.
 41 //                                                 40 //
 42 //--------------------------------------------     41 //---------------------------------------------------------------
 43                                                    42 
 44 #include "G4FastStep.hh"                           43 #include "G4FastStep.hh"
 45                                                << 
 46 #include "G4DynamicParticle.hh"                << 
 47 #include "G4Step.hh"                           << 
 48 #include "G4SystemOfUnits.hh"                  << 
 49 #include "G4Track.hh"                              44 #include "G4Track.hh"
                                                   >>  45 #include "G4Step.hh"
 50 #include "G4TrackFastVector.hh"                    46 #include "G4TrackFastVector.hh"
 51 #include "G4UnitsTable.hh"                     <<  47 #include "G4DynamicParticle.hh"
 52                                                    48 
 53 void G4FastStep::Initialize(const G4FastTrack&     49 void G4FastStep::Initialize(const G4FastTrack& fastTrack)
 54 {                                                  50 {
 55   // keeps the fastTrack reference                 51   // keeps the fastTrack reference
 56   fFastTrack = &fastTrack;                     <<  52   fFastTrack=&fastTrack;
 57                                                    53 
 58   // currentTrack will be used to Initialize t     54   // currentTrack will be used to Initialize the other data members
 59   const G4Track& currentTrack = *(fFastTrack->     55   const G4Track& currentTrack = *(fFastTrack->GetPrimaryTrack());
 60                                                    56 
 61   // use base class's method at first              57   // use base class's method at first
 62   G4VParticleChange::Initialize(currentTrack);     58   G4VParticleChange::Initialize(currentTrack);
 63                                                    59 
 64   // set Energy/Momentum etc. equal to those o     60   // set Energy/Momentum etc. equal to those of the parent particle
 65   const G4DynamicParticle* pParticle = current <<  61   const G4DynamicParticle*  pParticle = currentTrack.GetDynamicParticle();
 66   theEnergyChange = pParticle->GetKineticEnerg <<  62   theEnergyChange          = pParticle->GetKineticEnergy();
 67   theMomentumChange = pParticle->GetMomentumDi <<  63   theMomentumChange        = pParticle->GetMomentumDirection();
 68   thePolarizationChange = pParticle->GetPolari <<  64   thePolarizationChange    = pParticle->GetPolarization();
 69   theProperTimeChange = pParticle->GetProperTi <<  65   theProperTimeChange      = pParticle->GetProperTime();
 70                                                    66 
 71   // set Position/Time etc. equal to those of      67   // set Position/Time etc. equal to those of the parent track
 72   thePositionChange = currentTrack.GetPosition <<  68   thePositionChange      = currentTrack.GetPosition();
 73   theTimeChange = currentTrack.GetGlobalTime() <<  69   theTimeChange          = currentTrack.GetGlobalTime();
 74                                                    70 
 75   // switch off stepping hit invokation by def     71   // switch off stepping hit invokation by default:
 76   theSteppingControlFlag = AvoidHitInvocation;     72   theSteppingControlFlag = AvoidHitInvocation;
 77                                                    73 
 78   // event biasing weigth:                         74   // event biasing weigth:
 79   theWeightChange = currentTrack.GetWeight();  <<  75   theWeightChange        = currentTrack.GetWeight();
 80 }                                              <<  76 }  
 81                                                    77 
 82 //----------------------------------------         78 //----------------------------------------
 83 // -- Set the StopAndKilled signal                 79 // -- Set the StopAndKilled signal
 84 // -- and put kinetic energy to 0.0. in the        80 // -- and put kinetic energy to 0.0. in the
 85 // -- G4ParticleChange.                            81 // -- G4ParticleChange.
 86 //----------------------------------------         82 //----------------------------------------
 87 void G4FastStep::KillPrimaryTrack()                83 void G4FastStep::KillPrimaryTrack()
 88 {                                                  84 {
 89   ProposePrimaryTrackFinalKineticEnergy(0.);   <<  85   SetPrimaryTrackFinalKineticEnergy(0.) ;
 90   ProposeTrackStatus(fStopAndKill);            <<  86   ProposeTrackStatus(fStopAndKill) ;
 91 }                                                  87 }
 92                                                    88 
 93 //--------------------                             89 //--------------------
 94 //                                                 90 //
 95 //--------------------                             91 //--------------------
 96 void G4FastStep::ProposePrimaryTrackFinalPosit <<  92 void 
 97                                                <<  93 G4FastStep::
                                                   >>  94 ProposePrimaryTrackFinalPosition(const G4ThreeVector &position,
                                                   >>  95          G4bool localCoordinates)
 98 {                                                  96 {
 99   // Compute the position coordinate in global     97   // Compute the position coordinate in global
100   // reference system if needed ...                98   // reference system if needed ...
101   G4ThreeVector globalPosition = position;         99   G4ThreeVector globalPosition = position;
102   if (localCoordinates)                        << 100   if (localCoordinates) 
103     globalPosition = fFastTrack->GetInverseAff << 101     globalPosition = fFastTrack->GetInverseAffineTransformation()->
                                                   >> 102       TransformPoint(position);
104   // ...and feed the globalPosition:              103   // ...and feed the globalPosition:
105   thePositionChange = globalPosition;             104   thePositionChange = globalPosition;
106 }                                                 105 }
107                                                   106 
108 void G4FastStep::SetPrimaryTrackFinalPosition( << 107 void 
109                                                << 108 G4FastStep::
                                                   >> 109 SetPrimaryTrackFinalPosition(const G4ThreeVector &position,
                                                   >> 110            G4bool localCoordinates)
110 {                                                 111 {
111   ProposePrimaryTrackFinalPosition(position, l    112   ProposePrimaryTrackFinalPosition(position, localCoordinates);
112 }                                                 113 }
113                                                   114 
114 //--------------------                            115 //--------------------
115 //                                                116 //
116 //--------------------                            117 //--------------------
117 void G4FastStep::ProposePrimaryTrackFinalMomen << 118 void 
118                                                << 119 G4FastStep::
                                                   >> 120 ProposePrimaryTrackFinalMomentumDirection(const G4ThreeVector &momentum,
                                                   >> 121             G4bool localCoordinates)
119 {                                                 122 {
120   // Compute the momentum in global reference     123   // Compute the momentum in global reference
121   // system if needed ...                         124   // system if needed ...
122   G4ThreeVector globalMomentum = momentum;        125   G4ThreeVector globalMomentum = momentum;
123   if (localCoordinates)                           126   if (localCoordinates)
124     globalMomentum = fFastTrack->GetInverseAff << 127     globalMomentum = fFastTrack->GetInverseAffineTransformation()->
                                                   >> 128       TransformAxis(momentum);
125   // ...and feed the globalMomentum (ensuring     129   // ...and feed the globalMomentum (ensuring unitarity)
126   SetMomentumChange(globalMomentum.unit());       130   SetMomentumChange(globalMomentum.unit());
127 }                                                 131 }
128                                                   132 
129 void G4FastStep::SetPrimaryTrackFinalMomentum( << 133 void 
130                                                << 134 G4FastStep::
                                                   >> 135 SetPrimaryTrackFinalMomentum(const G4ThreeVector &momentum,
                                                   >> 136            G4bool localCoordinates)
131 {                                                 137 {
132   ProposePrimaryTrackFinalMomentumDirection(mo    138   ProposePrimaryTrackFinalMomentumDirection(momentum, localCoordinates);
133 }                                                 139 }
134                                                   140 
135 //--------------------                            141 //--------------------
136 //                                                142 //
137 //--------------------                            143 //--------------------
138 void G4FastStep::ProposePrimaryTrackFinalKinet << 144 void 
139                                                << 145 G4FastStep::
140                                                << 146 ProposePrimaryTrackFinalKineticEnergyAndDirection(G4double kineticEnergy,
                                                   >> 147               const G4ThreeVector &direction,
                                                   >> 148               G4bool localCoordinates)
141 {                                                 149 {
142   // Compute global direction if needed...        150   // Compute global direction if needed...
143   G4ThreeVector globalDirection = direction;      151   G4ThreeVector globalDirection = direction;
144   if (localCoordinates)                           152   if (localCoordinates)
145     globalDirection = fFastTrack->GetInverseAf << 153     globalDirection =fFastTrack->GetInverseAffineTransformation()-> 
                                                   >> 154       TransformAxis(direction);
146   // ...and feed the globalMomentum (ensuring     155   // ...and feed the globalMomentum (ensuring unitarity)
147   SetMomentumChange(globalDirection.unit());      156   SetMomentumChange(globalDirection.unit());
148   ProposePrimaryTrackFinalKineticEnergy(kineti << 157   SetPrimaryTrackFinalKineticEnergy(kineticEnergy);
149 }                                                 158 }
150                                                   159 
151 void G4FastStep::SetPrimaryTrackFinalKineticEn << 160 void 
152                                                << 161 G4FastStep::
153                                                << 162 SetPrimaryTrackFinalKineticEnergyAndDirection(G4double kineticEnergy,
                                                   >> 163                 const G4ThreeVector &direction,
                                                   >> 164                 G4bool localCoordinates)
154 {                                                 165 {
155   ProposePrimaryTrackFinalKineticEnergyAndDire    166   ProposePrimaryTrackFinalKineticEnergyAndDirection(kineticEnergy, direction, localCoordinates);
156 }                                                 167 }
157                                                   168 
158 //--------------------                            169 //--------------------
159 //                                                170 //
160 //--------------------                            171 //--------------------
161 void G4FastStep::ProposePrimaryTrackFinalPolar << 172 void 
162                                                << 173 G4FastStep::
                                                   >> 174 ProposePrimaryTrackFinalPolarization(const G4ThreeVector &polarization,
                                                   >> 175              G4bool localCoordinates)
163 {                                                 176 {
164   // Compute polarization in global system if     177   // Compute polarization in global system if needed:
165   G4ThreeVector globalPolarization(polarizatio    178   G4ThreeVector globalPolarization(polarization);
166   if (localCoordinates)                           179   if (localCoordinates)
167     globalPolarization =                       << 180     globalPolarization = fFastTrack->GetInverseAffineTransformation()->
168       fFastTrack->GetInverseAffineTransformati << 181       TransformAxis(globalPolarization);  
169   // Feed the particle globalPolarization:        182   // Feed the particle globalPolarization:
170   thePolarizationChange = globalPolarization;     183   thePolarizationChange = globalPolarization;
171 }                                                 184 }
172                                                   185 
173 void G4FastStep::SetPrimaryTrackFinalPolarizat << 186 void 
174                                                << 187 G4FastStep::
                                                   >> 188 SetPrimaryTrackFinalPolarization(const G4ThreeVector &polarization,
                                                   >> 189          G4bool localCoordinates)
175 {                                                 190 {
176   ProposePrimaryTrackFinalPolarization(polariz    191   ProposePrimaryTrackFinalPolarization(polarization, localCoordinates);
177 }                                                 192 }
178                                                   193 
179 //--------------------                            194 //--------------------
180 //                                                195 //
181 //--------------------                            196 //--------------------
182 G4Track* G4FastStep::CreateSecondaryTrack(cons << 197 G4Track* G4FastStep::
183                                           G4Th << 198 CreateSecondaryTrack(const G4DynamicParticle& dynamics,
184                                           G4do << 199          G4ThreeVector polarization,
                                                   >> 200          G4ThreeVector position,
                                                   >> 201          G4double time,
                                                   >> 202          G4bool localCoordinates     )
185 {                                                 203 {
186   G4DynamicParticle dummyDynamics(dynamics);      204   G4DynamicParticle dummyDynamics(dynamics);
187                                                << 205   
188   // -----------------------------------------    206   // ------------------------------------------
189   // Add the polarization to the dummyDynamics    207   // Add the polarization to the dummyDynamics:
190   // -----------------------------------------    208   // ------------------------------------------
191   dummyDynamics.SetPolarization(polarization.x << 209   dummyDynamics.SetPolarization(polarization.x(),
192                                                << 210         polarization.y(),
                                                   >> 211         polarization.z());
                                                   >> 212   
193   return CreateSecondaryTrack(dummyDynamics, p    213   return CreateSecondaryTrack(dummyDynamics, position, time, localCoordinates);
194 }                                                 214 }
195                                                   215 
196 //--------------------                            216 //--------------------
197 //                                                217 //
198 //--------------------                            218 //--------------------
199 G4Track* G4FastStep::CreateSecondaryTrack(cons << 219 G4Track* G4FastStep::
200                                           G4do << 220 CreateSecondaryTrack(const G4DynamicParticle& dynamics,
                                                   >> 221          G4ThreeVector position,
                                                   >> 222          G4double time,
                                                   >> 223          G4bool localCoordinates     )
201 {                                                 224 {
202   // ----------------------------------------     225   // ----------------------------------------
203   // Quantities in global coordinates system.     226   // Quantities in global coordinates system.
204   //                                           << 227   //  
205   // The allocated globalDynamics is deleted      228   // The allocated globalDynamics is deleted
206   // by the destructor of the G4Track.            229   // by the destructor of the G4Track.
207   // ----------------------------------------     230   // ----------------------------------------
208   auto globalDynamics = new G4DynamicParticle( << 231   G4DynamicParticle* globalDynamics =
                                                   >> 232     new G4DynamicParticle(dynamics);
209   G4ThreeVector globalPosition(position);         233   G4ThreeVector globalPosition(position);
210                                                << 234   
211   // -----------------------------------          235   // -----------------------------------
212   // Convert to global system if needed:          236   // Convert to global system if needed:
213   // -----------------------------------          237   // -----------------------------------
214   if (localCoordinates) {                      << 238   if (localCoordinates)
215     // -- Momentum Direction:                  << 239     {
216     globalDynamics->SetMomentumDirection(      << 240       // -- Momentum Direction:
217       fFastTrack->GetInverseAffineTransformati << 241       globalDynamics->SetMomentumDirection(fFastTrack->
218         globalDynamics->GetMomentumDirection() << 242              GetInverseAffineTransformation()->
219     // -- Polarization:                        << 243              TransformAxis(globalDynamics->
220     G4ThreeVector globalPolarization;          << 244                GetMomentumDirection()));
221     globalPolarization = fFastTrack->GetInvers << 245       // -- Polarization:
222       globalDynamics->GetPolarization());      << 246       G4ThreeVector globalPolarization;
223     globalDynamics->SetPolarization(globalPola << 247       globalPolarization = fFastTrack->GetInverseAffineTransformation()->
224                                     globalPola << 248   TransformAxis(globalDynamics->GetPolarization());
225                                                << 249       globalDynamics->SetPolarization(
226     // -- Position:                            << 250               globalPolarization.x(),
227     globalPosition = fFastTrack->GetInverseAff << 251               globalPolarization.y(),
228   }                                            << 252               globalPolarization.z()
229                                                << 253               );
                                                   >> 254       
                                                   >> 255       // -- Position:
                                                   >> 256       globalPosition = fFastTrack->GetInverseAffineTransformation()->
                                                   >> 257   TransformPoint(globalPosition);
                                                   >> 258     }
                                                   >> 259   
230   //-------------------------------------         260   //-------------------------------------
231   // Create the G4Track of the secondary:         261   // Create the G4Track of the secondary:
232   //-------------------------------------         262   //-------------------------------------
233   auto secondary = new G4Track(globalDynamics, << 263   G4Track* secondary = new G4Track(
234                                                << 264            globalDynamics,
                                                   >> 265            time,
                                                   >> 266            globalPosition
                                                   >> 267            );
                                                   >> 268   
235   //-------------------------------               269   //-------------------------------
236   // and feed the changes:                        270   // and feed the changes:
237   //-------------------------------               271   //-------------------------------
238   AddSecondary(secondary);                        272   AddSecondary(secondary);
239                                                << 273   
240   //--------------------------------------        274   //--------------------------------------
241   // returns the pointer on the secondary:        275   // returns the pointer on the secondary:
242   //--------------------------------------        276   //--------------------------------------
243   return secondary;                               277   return secondary;
244 }                                                 278 }
245                                                   279 
246 // G4FastStep should never be Initialized in t    280 // G4FastStep should never be Initialized in this way
247 // but we must define it to avoid warnings.       281 // but we must define it to avoid warnings.
248 void G4FastStep::Initialize(const G4Track&)       282 void G4FastStep::Initialize(const G4Track&)
249 {                                                 283 {
250   G4ExceptionDescription tellWhatIsWrong;      << 284   G4Exception("G4FastStep::Initialize(const G4Track&) should never be called,\nyou must use instead the G4FastStep::Initialize(const G4FastTrack&)\nmethod!");
251   tellWhatIsWrong << "G4FastStep can be initia << 285 }
252   G4Exception("G4FastStep::Initialize(const G4 << 286 
253               tellWhatIsWrong);                << 287 G4FastStep::G4FastStep()
                                                   >> 288   : G4VParticleChange()
                                                   >> 289 {
                                                   >> 290   if (verboseLevel>2)
                                                   >> 291   {
                                                   >> 292     G4cerr << "G4FastStep::G4FastStep() " << G4endl;
                                                   >> 293   }
                                                   >> 294 }
                                                   >> 295 
                                                   >> 296 G4FastStep::~G4FastStep() 
                                                   >> 297 {
                                                   >> 298   if (verboseLevel>2)
                                                   >> 299   {
                                                   >> 300     G4cerr << "G4FastStep::~G4FastStep() " << G4endl;
                                                   >> 301   }
                                                   >> 302 }
                                                   >> 303 
                                                   >> 304 // copy and assignment operators are implemented as "shallow copy"
                                                   >> 305 G4FastStep::G4FastStep(const G4FastStep &right)
                                                   >> 306   : G4VParticleChange()
                                                   >> 307 {
                                                   >> 308    *this = right;
                                                   >> 309 }
                                                   >> 310 
                                                   >> 311 
                                                   >> 312 G4FastStep & G4FastStep::operator=(const G4FastStep &right)
                                                   >> 313 {
                                                   >> 314    if (this != &right)
                                                   >> 315    {
                                                   >> 316      G4VParticleChange::operator=(right);
                                                   >> 317      theListOfSecondaries          = right.theListOfSecondaries;
                                                   >> 318      theSizeOftheListOfSecondaries = right.theSizeOftheListOfSecondaries;
                                                   >> 319      theNumberOfSecondaries        = right.theNumberOfSecondaries;
                                                   >> 320      theStatusChange               = right.theStatusChange;
                                                   >> 321      theMomentumChange             = right.theMomentumChange;
                                                   >> 322      thePolarizationChange         = right.thePolarizationChange;
                                                   >> 323      thePositionChange             = right.thePositionChange;
                                                   >> 324      theTimeChange                 = right.theTimeChange;
                                                   >> 325      theEnergyChange               = right.theEnergyChange;
                                                   >> 326      theTrueStepLength             = right.theTrueStepLength;
                                                   >> 327      theLocalEnergyDeposit         = right.theLocalEnergyDeposit;
                                                   >> 328      theSteppingControlFlag        = right.theSteppingControlFlag;
                                                   >> 329      theWeightChange               = right.theWeightChange;
                                                   >> 330    }
                                                   >> 331    return *this;
                                                   >> 332 }
                                                   >> 333 
                                                   >> 334 
                                                   >> 335 
                                                   >> 336 
                                                   >> 337 
                                                   >> 338 G4bool G4FastStep::operator==(const G4FastStep &right) const
                                                   >> 339 {
                                                   >> 340    return ((G4VParticleChange *)this == (G4VParticleChange *) &right);
                                                   >> 341 }
                                                   >> 342 
                                                   >> 343 G4bool G4FastStep::operator!=(const G4FastStep &right) const
                                                   >> 344 {
                                                   >> 345    return ((G4VParticleChange *)this != (G4VParticleChange *) &right);
254 }                                                 346 }
255                                                   347 
256 //--------------------------------------------    348 //----------------------------------------------------------------
257 // methods for updating G4Step                 << 349 // methods for updating G4Step 
258 //                                                350 //
259                                                   351 
260 G4Step* G4FastStep::UpdateStepForPostStep(G4St    352 G4Step* G4FastStep::UpdateStepForPostStep(G4Step* pStep)
261 {                                              << 353 { 
262   // A physics process always calculates the f    354   // A physics process always calculates the final state of the particle
263                                                   355 
264   // Take note that the return type of GetMome    356   // Take note that the return type of GetMomentumChange is a
265   // pointer to G4ParticleMometum. Also it is  << 357   // pointer to G4ParticleMometum. Also it is a normalized 
266   // momentum vector.                             358   // momentum vector.
267                                                   359 
268   //  G4StepPoint* pPreStepPoint  = pStep->Get << 360   //  G4StepPoint* pPreStepPoint  = pStep->GetPreStepPoint(); 
269   G4StepPoint* pPostStepPoint = pStep->GetPost << 361   G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint(); 
270   G4Track* aTrack = pStep->GetTrack();         << 362   G4Track*     aTrack  = pStep->GetTrack();
271   //  G4double     mass = aTrack->GetDynamicPa    363   //  G4double     mass = aTrack->GetDynamicParticle()->GetMass();
272                                                << 364  
273   // update kinetic energy and momentum direct    365   // update kinetic energy and momentum direction
274   pPostStepPoint->SetMomentumDirection(theMome    366   pPostStepPoint->SetMomentumDirection(theMomentumChange);
275   pPostStepPoint->SetKineticEnergy(theEnergyCh << 367   pPostStepPoint->SetKineticEnergy( theEnergyChange );
276                                                << 
277   // update polarization                       << 
278   pPostStepPoint->SetPolarization(thePolarizat << 
279                                                   368 
                                                   >> 369    // update polarization
                                                   >> 370   pPostStepPoint->SetPolarization( thePolarizationChange );
                                                   >> 371       
280   // update position and time                     372   // update position and time
281   pPostStepPoint->SetPosition(thePositionChang << 373   pPostStepPoint->SetPosition( thePositionChange  );
282   pPostStepPoint->SetGlobalTime(theTimeChange) << 374   pPostStepPoint->SetGlobalTime( theTimeChange  );
283   pPostStepPoint->AddLocalTime(theTimeChange - << 375   pPostStepPoint->AddLocalTime( theTimeChange 
284   pPostStepPoint->SetProperTime(theProperTimeC << 376          - aTrack->GetGlobalTime());
                                                   >> 377   pPostStepPoint->SetProperTime( theProperTimeChange  );
285                                                   378 
286   // update weight                                379   // update weight
287   pPostStepPoint->SetWeight(theWeightChange);  << 380   pPostStepPoint->SetWeight( theWeightChange );
288                                                   381 
289   if (debugFlag) CheckIt(*aTrack);                382   if (debugFlag) CheckIt(*aTrack);
290                                                   383 
291   //  Update the G4Step specific attributes    << 384   
                                                   >> 385   //  Update the G4Step specific attributes 
292   return UpdateStepInfo(pStep);                   386   return UpdateStepInfo(pStep);
293 }                                                 387 }
294                                                   388 
295 G4Step* G4FastStep::UpdateStepForAtRest(G4Step    389 G4Step* G4FastStep::UpdateStepForAtRest(G4Step* pStep)
296 {                                              << 390 { 
297   // A physics process always calculates the f    391   // A physics process always calculates the final state of the particle
298                                                   392 
299   // G4StepPoint* pPreStepPoint  = pStep->GetP << 393   // G4StepPoint* pPreStepPoint  = pStep->GetPreStepPoint(); 
300   G4StepPoint* pPostStepPoint = pStep->GetPost << 394   G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint(); 
301   G4Track* aTrack = pStep->GetTrack();         << 395   G4Track*     aTrack  = pStep->GetTrack();
302   // G4double     mass = aTrack->GetDynamicPar    396   // G4double     mass = aTrack->GetDynamicParticle()->GetMass();
303                                                << 397  
304   // update kinetic energy and momentum direct    398   // update kinetic energy and momentum direction
305   pPostStepPoint->SetMomentumDirection(theMome    399   pPostStepPoint->SetMomentumDirection(theMomentumChange);
306   pPostStepPoint->SetKineticEnergy(theEnergyCh << 400   pPostStepPoint->SetKineticEnergy( theEnergyChange );
307                                                   401 
308   // update polarization                          402   // update polarization
309   pPostStepPoint->SetPolarization(thePolarizat << 403   pPostStepPoint->SetPolarization( thePolarizationChange );
310                                                << 404       
311   // update position and time                     405   // update position and time
312   pPostStepPoint->SetPosition(thePositionChang << 406   pPostStepPoint->SetPosition( thePositionChange  );
313   pPostStepPoint->SetGlobalTime(theTimeChange) << 407   pPostStepPoint->SetGlobalTime( theTimeChange  );
314   pPostStepPoint->AddLocalTime(theTimeChange - << 408   pPostStepPoint->AddLocalTime( theTimeChange 
315   pPostStepPoint->SetProperTime(theProperTimeC << 409          - aTrack->GetGlobalTime());
                                                   >> 410   pPostStepPoint->SetProperTime( theProperTimeChange  );
316                                                   411 
317   // update weight                                412   // update weight
318   pPostStepPoint->SetWeight(theWeightChange);  << 413   pPostStepPoint->SetWeight( theWeightChange );
319                                                   414 
320   if (debugFlag) CheckIt(*aTrack);                415   if (debugFlag) CheckIt(*aTrack);
321                                                   416 
322   //  Update the G4Step specific attributes    << 417   //  Update the G4Step specific attributes 
323   return UpdateStepInfo(pStep);                   418   return UpdateStepInfo(pStep);
324 }                                                 419 }
325                                                   420 
326 //--------------------------------------------    421 //----------------------------------------------------------------
327 // methods for printing messages               << 422 // methods for printing messages  
328 //                                                423 //
329                                                   424 
330 void G4FastStep::DumpInfo() const                 425 void G4FastStep::DumpInfo() const
331 {                                                 426 {
332   // use base-class DumpInfo                   << 427 // use base-class DumpInfo
333   G4VParticleChange::DumpInfo();                  428   G4VParticleChange::DumpInfo();
334                                                   429 
335   G4cout << "        Position - x (mm)   : " < << 
336          << G4endl;                            << 
337   G4cout << "        Position - y (mm)   : " < << 
338          << G4endl;                            << 
339   G4cout << "        Position - z (mm)   : " < << 
340          << G4endl;                            << 
341   G4cout << "        Time (ns)           : " < << 
342   G4cout << "        Proper Time (ns)    : " < << 
343   G4long olprc = G4cout.precision(3);          << 
344   G4cout << "        Momentum Direct - x : " < << 
345   G4cout << "        Momentum Direct - y : " < << 
346   G4cout << "        Momentum Direct - z : " < << 
347   G4cout.precision(olprc);                     << 
348   G4cout << "        Kinetic Energy (MeV): " < << 
349   G4cout.precision(3);                            430   G4cout.precision(3);
350   G4cout << "        Polarization - x    : " < << 431   G4cout << "        Position - x (mm)   : " 
351          << G4endl;                            << 432        << std::setw(20) << thePositionChange.x()/mm
352   G4cout << "        Polarization - y    : " < << 433        << G4endl; 
353          << G4endl;                            << 434   G4cout << "        Position - y (mm)   : " 
354   G4cout << "        Polarization - z    : " < << 435        << std::setw(20) << thePositionChange.y()/mm
355          << G4endl;                            << 436        << G4endl; 
356   G4cout.precision(olprc);                     << 437   G4cout << "        Position - z (mm)   : " 
                                                   >> 438        << std::setw(20) << thePositionChange.z()/mm
                                                   >> 439        << G4endl;
                                                   >> 440   G4cout << "        Time (ns)           : " 
                                                   >> 441        << std::setw(20) << theTimeChange/ns
                                                   >> 442        << G4endl;
                                                   >> 443   G4cout << "        Proper Time (ns)    : " 
                                                   >> 444        << std::setw(20) << theProperTimeChange/ns
                                                   >> 445        << G4endl;
                                                   >> 446   G4cout << "        Momentum Direct - x : " 
                                                   >> 447        << std::setw(20) << theMomentumChange.x()
                                                   >> 448        << G4endl;
                                                   >> 449   G4cout << "        Momentum Direct - y : " 
                                                   >> 450        << std::setw(20) << theMomentumChange.y()
                                                   >> 451        << G4endl;
                                                   >> 452   G4cout << "        Momentum Direct - z : " 
                                                   >> 453        << std::setw(20) << theMomentumChange.z()
                                                   >> 454        << G4endl;
                                                   >> 455   G4cout << "        Kinetic Energy (MeV): " 
                                                   >> 456        << std::setw(20) << theEnergyChange/MeV
                                                   >> 457        << G4endl;
                                                   >> 458   G4cout << "        Polarization - x    : " 
                                                   >> 459        << std::setw(20) << thePolarizationChange.x()
                                                   >> 460        << G4endl;
                                                   >> 461   G4cout << "        Polarization - y    : " 
                                                   >> 462        << std::setw(20) << thePolarizationChange.y()
                                                   >> 463        << G4endl;
                                                   >> 464   G4cout << "        Polarization - z    : " 
                                                   >> 465        << std::setw(20) <<  thePolarizationChange.z()
                                                   >> 466        << G4endl;
357 }                                                 467 }
358                                                   468 
359 G4bool G4FastStep::CheckIt(const G4Track& aTra    469 G4bool G4FastStep::CheckIt(const G4Track& aTrack)
360 {                                                 470 {
361   //                                              471   //
362   //      In the G4FastStep::CheckIt              472   //      In the G4FastStep::CheckIt
363   //      We only check a bit                     473   //      We only check a bit
364   //                                           << 474   //      
365   //      If the user violates the energy,        475   //      If the user violates the energy,
366   //      We don't care, we agree.                476   //      We don't care, we agree.
367   //                                              477   //
368   //      But for theMomentumDirectionChange,     478   //      But for theMomentumDirectionChange,
369   //      We do pay attention.                    479   //      We do pay attention.
370   //      And if too large is its range,          480   //      And if too large is its range,
371   //      We issue an Exception.                  481   //      We issue an Exception.
372   //                                              482   //
373   //                                              483   //
374   // It means, the G4FastStep::CheckIt issues     484   // It means, the G4FastStep::CheckIt issues an exception only for the
375   // theMomentumDirectionChange which should b    485   // theMomentumDirectionChange which should be an unit vector
376   // and it corrects it because it could cause    486   // and it corrects it because it could cause problems for the ulterior
377   // tracking.For the rest, only warning are i    487   // tracking.For the rest, only warning are issued.
378                                                   488 
379   G4bool itsOK = true;                         << 489   G4bool    itsOK = true;
380   G4bool exitWithError = false;                << 490   G4bool    exitWithError = false;
381   G4double accuracy;                           << 491   G4double  accuracy;
382                                                << 492   
383   // Energy should not be larger than the init    493   // Energy should not be larger than the initial value
384   accuracy = (theEnergyChange - aTrack.GetKine << 494   accuracy = ( theEnergyChange - aTrack.GetKineticEnergy())/MeV;
385   if (accuracy > GetAccuracyForWarning()) {       495   if (accuracy > GetAccuracyForWarning()) {
386     G4ExceptionDescription ed;                 << 496     G4cout << "  G4FastStep::CheckIt    : ";
387     ed << "The energy becomes larger than the  << 497     G4cout << "the energy becomes larger than the initial value !!" << G4endl;
388        << G4endl;                              << 498     G4cout << "  Difference:  " << accuracy  << "[MeV] " <<G4endl;
389     G4Exception("G4FastStep::CheckIt(const G4T << 
390     itsOK = false;                                499     itsOK = false;
391     if (accuracy > GetAccuracyForException())  << 500     if (accuracy > GetAccuracyForException()) exitWithError = true;
392       exitWithError = true;                    << 
393     }                                          << 
394   }                                               501   }
395                                                   502 
396   G4bool itsOKforMomentum = true;                 503   G4bool itsOKforMomentum = true;
397   if (theEnergyChange > 0.) {                  << 504   if ( theEnergyChange >0.) {
398     accuracy = std::abs(theMomentumChange.mag2 << 505     accuracy = std::abs(theMomentumChange.mag2()-1.0);
399     if (accuracy > GetAccuracyForWarning()) {     506     if (accuracy > GetAccuracyForWarning()) {
400       G4ExceptionDescription ed;               << 507       G4cout << "  G4FastStep::CheckIt    : ";
401       ed << "The Momentum Change is not a unit << 508       G4cout << "the Momentum Change is not unit vector !!"
402       G4Exception("G4FastStep::CheckIt(const G << 509        << "  Difference:  " << accuracy << G4endl;
403       itsOK = itsOKforMomentum = false;           510       itsOK = itsOKforMomentum = false;
404       if (accuracy > GetAccuracyForException() << 511       if (accuracy > GetAccuracyForException()) exitWithError = true;
405         exitWithError = true;                  << 
406       }                                        << 
407     }                                             512     }
408   }                                               513   }
409                                                << 514   
410   accuracy = (aTrack.GetGlobalTime() - theTime << 515   accuracy = (aTrack.GetGlobalTime()- theTimeChange)/ns;  
411   if (accuracy > GetAccuracyForWarning()) {       516   if (accuracy > GetAccuracyForWarning()) {
412     G4ExceptionDescription ed;                 << 517     G4cout << "  G4FastStep::CheckIt    : ";
413     ed << "The global time is getting backward << 518     G4cout << "the global time goes back  !!"
414     G4Exception("G4FastStep::CheckIt(const G4T << 519      << " Difference:  " << accuracy << "[ns] " <<G4endl;
415     itsOK = false;                                520     itsOK = false;
416   }                                               521   }
417                                                << 522   
418   accuracy = (aTrack.GetProperTime() - theProp << 523   accuracy = (aTrack.GetProperTime() - theProperTimeChange )/ns;
419   if (accuracy > GetAccuracyForWarning()) {    << 524   if (accuracy) {
420     G4ExceptionDescription ed;                 << 525     G4cout << "  G4FastStep::CheckIt    : ";
421     ed << "The proper time is getting backward << 526     G4cout << "the proper time goes back  !!"
422     G4Exception("G4FastStep::CheckIt(const G4T << 527      << " Difference:  " <<  accuracy  << "[ns] " <<G4endl;
423     itsOK = false;                                528     itsOK = false;
424   }                                               529   }
425                                                << 530   
426   if (!itsOK) {                                << 531   if (!itsOK) { 
427     G4cout << "ERROR - G4FastStep::CheckIt() " << 532     G4cout << " G4FastStep::CheckIt " <<G4endl;
428     G4cout << "        Pointer : " << this <<  << 533     G4cout << " pointer : " << this <<G4endl ;
429     DumpInfo();                                   534     DumpInfo();
430   }                                               535   }
431                                                << 536   
432   // Exit with error                              537   // Exit with error
433   if (exitWithError) {                         << 538   if (exitWithError) G4Exception("G4ParticleChange::CheckIt");
434     G4ExceptionDescription ed;                 << 
435     ed << "An inaccuracy in G4FastStep is beyo << 
436     G4Exception("G4FastStep::CheckIt(const G4T << 
437   }                                            << 
438                                                   539 
439   // correction for Momentum only.             << 540   //correction for Momentum only.
440   if (!itsOKforMomentum) {                        541   if (!itsOKforMomentum) {
441     G4double vmag = theMomentumChange.mag();      542     G4double vmag = theMomentumChange.mag();
442     theMomentumChange = (1. / vmag) * theMomen << 543     theMomentumChange = (1./vmag)*theMomentumChange;
443   }                                               544   }
444                                                   545 
445   itsOK = (itsOK) && G4VParticleChange::CheckI << 546   itsOK = (itsOK) && G4VParticleChange::CheckIt(aTrack); 
446   return itsOK;                                   547   return itsOK;
447 }                                                 548 }
448                                                   549