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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 // G4ParticleChangeForTransport class implemen 26 // G4ParticleChangeForTransport class implementation 27 // 27 // 28 // Author: Hisaya Kurashige, 10 May 1998 28 // Author: Hisaya Kurashige, 10 May 1998 29 // ------------------------------------------- 29 // -------------------------------------------------------------------- 30 30 31 #include "G4ParticleChangeForTransport.hh" 31 #include "G4ParticleChangeForTransport.hh" 32 #include "G4TouchableHandle.hh" 32 #include "G4TouchableHandle.hh" 33 #include "G4Track.hh" 33 #include "G4Track.hh" 34 #include "G4Step.hh" 34 #include "G4Step.hh" 35 #include "G4TrackFastVector.hh" 35 #include "G4TrackFastVector.hh" 36 #include "G4DynamicParticle.hh" 36 #include "G4DynamicParticle.hh" 37 37 38 // ------------------------------------------- 38 // -------------------------------------------------------------------- 39 G4ParticleChangeForTransport::G4ParticleChange << 39 G4ParticleChangeForTransport::G4ParticleChangeForTransport() >> 40 : G4ParticleChange() 40 { 41 { 41 // Disable flag that is enabled in G4VPartic << 42 } 42 debugFlag = false; << 43 >> 44 // -------------------------------------------------------------------- >> 45 G4ParticleChangeForTransport::~G4ParticleChangeForTransport() >> 46 { >> 47 } >> 48 >> 49 // -------------------------------------------------------------------- >> 50 G4ParticleChangeForTransport:: >> 51 G4ParticleChangeForTransport(const G4ParticleChangeForTransport& r) >> 52 : G4ParticleChange(r) >> 53 { >> 54 theTouchableHandle = r.theTouchableHandle; >> 55 isMomentumChanged = r.isMomentumChanged; >> 56 theMaterialChange = r.theMaterialChange; >> 57 theMaterialCutsCoupleChange = r.theMaterialCutsCoupleChange; >> 58 theSensitiveDetectorChange = r.theSensitiveDetectorChange; >> 59 } >> 60 >> 61 // -------------------------------------------------------------------- >> 62 G4ParticleChangeForTransport& >> 63 G4ParticleChangeForTransport::operator=(const G4ParticleChangeForTransport& r) >> 64 { >> 65 if(this != &r) >> 66 { >> 67 theListOfSecondaries = r.theListOfSecondaries; >> 68 theSizeOftheListOfSecondaries = r.theSizeOftheListOfSecondaries; >> 69 theNumberOfSecondaries = r.theNumberOfSecondaries; >> 70 theStatusChange = r.theStatusChange; >> 71 theTouchableHandle = r.theTouchableHandle; >> 72 theMaterialChange = r.theMaterialChange; >> 73 theMaterialCutsCoupleChange = r.theMaterialCutsCoupleChange; >> 74 theSensitiveDetectorChange = r.theSensitiveDetectorChange; >> 75 theMomentumDirectionChange = r.theMomentumDirectionChange; >> 76 thePolarizationChange = r.thePolarizationChange; >> 77 thePositionChange = r.thePositionChange; >> 78 theTimeChange = r.theTimeChange; >> 79 theEnergyChange = r.theEnergyChange; >> 80 theVelocityChange = r.theVelocityChange; >> 81 theTrueStepLength = r.theTrueStepLength; >> 82 theLocalEnergyDeposit = r.theLocalEnergyDeposit; >> 83 theSteppingControlFlag = r.theSteppingControlFlag; >> 84 } >> 85 return *this; 43 } 86 } 44 87 45 // ------------------------------------------- 88 // -------------------------------------------------------------------- 46 G4Step* G4ParticleChangeForTransport::UpdateSt 89 G4Step* G4ParticleChangeForTransport::UpdateStepForAtRest(G4Step* pStep) 47 { 90 { 48 // Update the G4Step specific attributes 91 // Update the G4Step specific attributes 49 return UpdateStepInfo(pStep); 92 return UpdateStepInfo(pStep); 50 } 93 } 51 94 52 // ------------------------------------------- 95 // -------------------------------------------------------------------- 53 G4Step* G4ParticleChangeForTransport::UpdateSt 96 G4Step* G4ParticleChangeForTransport::UpdateStepForAlongStep(G4Step* pStep) 54 { 97 { 55 // Smooth curved tajectory representation: l 98 // Smooth curved tajectory representation: let the Step know about 56 // the auxiliary trajectory points (jacek 30 99 // the auxiliary trajectory points (jacek 30/10/2002) 57 pStep->SetPointerToVectorOfAuxiliaryPoints(f 100 pStep->SetPointerToVectorOfAuxiliaryPoints(fpVectorOfAuxiliaryPointsPointer); 58 101 59 // Most of the code assumes that transportat << 102 // copy of G4ParticleChange::UpdateStepForAlongStep 60 // so the pre- and post-step point are still << 103 // i.e. no effect for touchable >> 104 >> 105 // A physics process always calculates the final state of the >> 106 // particle relative to the initial state at the beginning >> 107 // of the Step, i.e., based on information of G4Track (or >> 108 // equivalently the PreStepPoint). >> 109 // So, the differences (delta) between these two states have to be >> 110 // calculated and be accumulated in PostStepPoint. >> 111 >> 112 // Take note that the return type of GetMomentumChange is a >> 113 // pointer to G4ThreeVector. Also it is a normalized >> 114 // momentum vector. >> 115 61 G4StepPoint* pPreStepPoint = pStep->GetPreS 116 G4StepPoint* pPreStepPoint = pStep->GetPreStepPoint(); 62 G4StepPoint* pPostStepPoint = pStep->GetPost 117 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint(); >> 118 G4Track* aTrack = pStep->GetTrack(); >> 119 G4double mass = aTrack->GetDynamicParticle()->GetMass(); >> 120 >> 121 // update kinetic energy >> 122 // now assume that no energy change in transportation >> 123 // However it is not true in electric fields >> 124 // Case for changing energy will be implemented in future 63 125 64 // update momentum direction and energy 126 // update momentum direction and energy 65 if(isMomentumChanged) 127 if(isMomentumChanged) 66 { 128 { 67 pPostStepPoint->SetMomentumDirection(theMo << 129 G4double energy; 68 pPostStepPoint->SetKineticEnergy(theEnergy << 130 energy = pPostStepPoint->GetKineticEnergy() + >> 131 (theEnergyChange - pPreStepPoint->GetKineticEnergy()); >> 132 >> 133 // calculate new momentum >> 134 G4ThreeVector pMomentum = >> 135 pPostStepPoint->GetMomentum() + >> 136 (CalcMomentum(theEnergyChange, theMomentumDirectionChange, mass) - >> 137 pPreStepPoint->GetMomentum()); >> 138 G4double tMomentum = pMomentum.mag(); >> 139 G4ThreeVector direction(1.0, 0.0, 0.0); >> 140 if(tMomentum > 0.) >> 141 { >> 142 G4double inv_Momentum = 1.0 / tMomentum; >> 143 direction = pMomentum * inv_Momentum; >> 144 } >> 145 pPostStepPoint->SetMomentumDirection(direction); >> 146 pPostStepPoint->SetKineticEnergy(energy); 69 } 147 } 70 if(isVelocityChanged) 148 if(isVelocityChanged) 71 pPostStepPoint->SetVelocity(theVelocityCha 149 pPostStepPoint->SetVelocity(theVelocityChange); 72 150 >> 151 // stop case should not occur >> 152 // pPostStepPoint->SetMomentumDirection(G4ThreeVector(1., 0., 0.)); >> 153 73 // update polarization 154 // update polarization 74 pPostStepPoint->SetPolarization(thePolarizat << 155 pPostStepPoint->AddPolarization(thePolarizationChange - >> 156 pPreStepPoint->GetPolarization()); 75 157 76 // update position and time 158 // update position and time 77 pPostStepPoint->SetPosition(thePositionChang << 159 pPostStepPoint->AddPosition(thePositionChange - pPreStepPoint->GetPosition()); 78 pPostStepPoint->AddGlobalTime(theTimeChange 160 pPostStepPoint->AddGlobalTime(theTimeChange - pPreStepPoint->GetLocalTime()); 79 pPostStepPoint->AddLocalTime(theTimeChange - 161 pPostStepPoint->AddLocalTime(theTimeChange - pPreStepPoint->GetLocalTime()); 80 pPostStepPoint->SetProperTime(theProperTimeC << 162 pPostStepPoint->AddProperTime(theProperTimeChange - >> 163 pPreStepPoint->GetProperTime()); 81 164 82 #ifdef G4VERBOSE 165 #ifdef G4VERBOSE 83 if(debugFlag) { CheckIt(*theCurrentTrack); } << 166 if(debugFlag) { CheckIt(*aTrack); } 84 #endif 167 #endif 85 168 86 // Update the G4Step specific attributes 169 // Update the G4Step specific attributes 87 pStep->SetStepLength( theTrueStepLength ); << 170 // pStep->SetStepLength( theTrueStepLength ); >> 171 // pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit ); 88 pStep->SetControlFlag(theSteppingControlFlag 172 pStep->SetControlFlag(theSteppingControlFlag); 89 173 90 return pStep; 174 return pStep; 91 } 175 } 92 176 93 // ------------------------------------------- 177 // -------------------------------------------------------------------- 94 G4Step* G4ParticleChangeForTransport::UpdateSt 178 G4Step* G4ParticleChangeForTransport::UpdateStepForPostStep(G4Step* pStep) 95 { 179 { 96 // A physics process always calculates the f 180 // A physics process always calculates the final state of the particle 97 181 98 // Change volume only if some kinetic energy 182 // Change volume only if some kinetic energy remains 99 G4StepPoint* pPostStepPoint = pStep->GetPost 183 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint(); 100 if(pPostStepPoint->GetKineticEnergy() > 0.0) 184 if(pPostStepPoint->GetKineticEnergy() > 0.0) 101 { 185 { 102 // update next touchable 186 // update next touchable 103 // (touchable can be changed only at PostS 187 // (touchable can be changed only at PostStepDoIt) 104 pPostStepPoint->SetTouchableHandle(theTouc 188 pPostStepPoint->SetTouchableHandle(theTouchableHandle); 105 189 106 pPostStepPoint->SetMaterial(theMaterialCha 190 pPostStepPoint->SetMaterial(theMaterialChange); 107 pPostStepPoint->SetMaterialCutsCouple(theM 191 pPostStepPoint->SetMaterialCutsCouple(theMaterialCutsCoupleChange); 108 pPostStepPoint->SetSensitiveDetector(theSe 192 pPostStepPoint->SetSensitiveDetector(theSensitiveDetectorChange); 109 } 193 } 110 if(this->GetFirstStepInVolume()) 194 if(this->GetFirstStepInVolume()) 111 { 195 { 112 pStep->SetFirstStepFlag(); 196 pStep->SetFirstStepFlag(); 113 } 197 } 114 else 198 else 115 { 199 { 116 pStep->ClearFirstStepFlag(); 200 pStep->ClearFirstStepFlag(); 117 } 201 } 118 if(this->GetLastStepInVolume()) 202 if(this->GetLastStepInVolume()) 119 { 203 { 120 pStep->SetLastStepFlag(); 204 pStep->SetLastStepFlag(); 121 } 205 } 122 else 206 else 123 { 207 { 124 pStep->ClearLastStepFlag(); 208 pStep->ClearLastStepFlag(); 125 } 209 } 126 // It used to call base class's method 210 // It used to call base class's method 127 // - but this would copy uninitialised dat 211 // - but this would copy uninitialised data members 128 // return G4ParticleChange::UpdateStepForPos 212 // return G4ParticleChange::UpdateStepForPostStep(pStep); 129 213 130 // Copying what the base class does would in 214 // Copying what the base class does would instead 131 // - also not useful 215 // - also not useful 132 // return G4VParticleChange::UpdateStepInfo( 216 // return G4VParticleChange::UpdateStepInfo(pStep); 133 217 134 return pStep; 218 return pStep; 135 } 219 } 136 220 137 // ------------------------------------------- 221 // -------------------------------------------------------------------- 138 void G4ParticleChangeForTransport::DumpInfo() 222 void G4ParticleChangeForTransport::DumpInfo() const 139 { 223 { 140 // use base-class DumpInfo 224 // use base-class DumpInfo 141 G4ParticleChange::DumpInfo(); 225 G4ParticleChange::DumpInfo(); >> 226 >> 227 G4int oldprc = G4cout.precision(3); 142 G4cout << " Touchable (pointer) : " < 228 G4cout << " Touchable (pointer) : " << std::setw(20) 143 << theTouchableHandle() << G4endl; 229 << theTouchableHandle() << G4endl; >> 230 G4cout.precision(oldprc); 144 } 231 } 145 232