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25 // 25 //
26 // G4ParticleChangeForTransport class implemen <<
27 // 26 //
28 // Author: Hisaya Kurashige, 10 May 1998 << 27 //
29 // ------------------------------------------- << 28 //
>> 29 // --------------------------------------------------------------
>> 30 // GEANT 4 class implementation file
>> 31 //
>> 32 //
>> 33 //
>> 34 // ------------------------------------------------------------
>> 35 // Implemented for the new scheme 10 May. 1998 H.Kurahige
>> 36 // Correct tratment of fpNextTouchable 12 May. 1998 H.Kurashige
>> 37 // Change to the next volume only if energy>0 19 Jan. 2004 V.Ivanchenko
>> 38 // --------------------------------------------------------------
30 39
31 #include "G4ParticleChangeForTransport.hh" 40 #include "G4ParticleChangeForTransport.hh"
32 #include "G4TouchableHandle.hh" 41 #include "G4TouchableHandle.hh"
33 #include "G4Track.hh" 42 #include "G4Track.hh"
34 #include "G4Step.hh" 43 #include "G4Step.hh"
35 #include "G4TrackFastVector.hh" 44 #include "G4TrackFastVector.hh"
36 #include "G4DynamicParticle.hh" 45 #include "G4DynamicParticle.hh"
37 46
38 // ------------------------------------------- << 47 G4ParticleChangeForTransport::G4ParticleChangeForTransport()
39 G4ParticleChangeForTransport::G4ParticleChange << 48 : G4ParticleChange(), isMomentumChanged(false), theMaterialChange(0),
>> 49 theMaterialCutsCoupleChange(0), theSensitiveDetectorChange(0),
>> 50 fpVectorOfAuxiliaryPointsPointer(0)
40 { 51 {
41 // Disable flag that is enabled in G4VPartic << 52 if (verboseLevel>2) {
42 debugFlag = false; << 53 G4cout << "G4ParticleChangeForTransport::G4ParticleChangeForTransport() "
>> 54 << G4endl;
>> 55 }
43 } 56 }
44 57
45 // ------------------------------------------- << 58 G4ParticleChangeForTransport::~G4ParticleChangeForTransport()
>> 59 {
>> 60 if (verboseLevel>2) {
>> 61 G4cout << "G4ParticleChangeForTransport::~G4ParticleChangeForTransport() "
>> 62 << G4endl;
>> 63 }
>> 64 }
>> 65
>> 66 G4ParticleChangeForTransport::
>> 67 G4ParticleChangeForTransport(const G4ParticleChangeForTransport &r)
>> 68 : G4ParticleChange(r),
>> 69 fpVectorOfAuxiliaryPointsPointer(0)
>> 70 {
>> 71 if (verboseLevel>0) {
>> 72 G4cout << "G4ParticleChangeForTransport:: copy constructor is called "
>> 73 << G4endl;
>> 74 }
>> 75 theTouchableHandle = r.theTouchableHandle;
>> 76 isMomentumChanged = r.isMomentumChanged;
>> 77 theMaterialChange = r.theMaterialChange;
>> 78 theMaterialCutsCoupleChange = r.theMaterialCutsCoupleChange;
>> 79 theSensitiveDetectorChange = r.theSensitiveDetectorChange;
>> 80 }
>> 81
>> 82 // assignemnt operator
>> 83 G4ParticleChangeForTransport &
>> 84 G4ParticleChangeForTransport::operator=(const G4ParticleChangeForTransport &r)
>> 85 {
>> 86 if (verboseLevel>1) {
>> 87 G4cout << "G4ParticleChangeForTransport:: assignment operator is called "
>> 88 << G4endl;
>> 89 }
>> 90 if (this != &r)
>> 91 {
>> 92 theListOfSecondaries = r.theListOfSecondaries;
>> 93 theSizeOftheListOfSecondaries = r.theSizeOftheListOfSecondaries;
>> 94 theNumberOfSecondaries = r.theNumberOfSecondaries;
>> 95 theStatusChange = r.theStatusChange;
>> 96 theTouchableHandle = r.theTouchableHandle;
>> 97 theMaterialChange = r.theMaterialChange;
>> 98 theMaterialCutsCoupleChange = r.theMaterialCutsCoupleChange;
>> 99 theSensitiveDetectorChange = r.theSensitiveDetectorChange;
>> 100 theMomentumDirectionChange = r.theMomentumDirectionChange;
>> 101 thePolarizationChange = r.thePolarizationChange;
>> 102 thePositionChange = r.thePositionChange;
>> 103 theTimeChange = r.theTimeChange;
>> 104 theEnergyChange = r.theEnergyChange;
>> 105 theVelocityChange = r.theVelocityChange;
>> 106 theTrueStepLength = r.theTrueStepLength;
>> 107 theLocalEnergyDeposit = r.theLocalEnergyDeposit;
>> 108 theSteppingControlFlag = r.theSteppingControlFlag;
>> 109 }
>> 110 return *this;
>> 111 }
>> 112
>> 113 //----------------------------------------------------------------
>> 114 // methods for updating G4Step
>> 115 //
>> 116
46 G4Step* G4ParticleChangeForTransport::UpdateSt 117 G4Step* G4ParticleChangeForTransport::UpdateStepForAtRest(G4Step* pStep)
47 { 118 {
48 // Update the G4Step specific attributes << 119 // Nothing happens for AtRestDoIt
>> 120 if (verboseLevel>0) {
>> 121 G4cout << "G4ParticleChangeForTransport::UpdateStepForAtRest() is called"
>> 122 << G4endl;
>> 123 G4cout << " Nothing happens for this method " << G4endl;
>> 124 }
>> 125 // Update the G4Step specific attributes
49 return UpdateStepInfo(pStep); 126 return UpdateStepInfo(pStep);
50 } 127 }
51 128
52 // ------------------------------------------- << 129
53 G4Step* G4ParticleChangeForTransport::UpdateSt 130 G4Step* G4ParticleChangeForTransport::UpdateStepForAlongStep(G4Step* pStep)
54 { 131 {
55 // Smooth curved tajectory representation: l 132 // Smooth curved tajectory representation: let the Step know about
56 // the auxiliary trajectory points (jacek 30 133 // the auxiliary trajectory points (jacek 30/10/2002)
57 pStep->SetPointerToVectorOfAuxiliaryPoints(f 134 pStep->SetPointerToVectorOfAuxiliaryPoints(fpVectorOfAuxiliaryPointsPointer);
58 135
59 // Most of the code assumes that transportat << 136 // copy of G4ParticleChange::UpdateStepForAlongStep
60 // so the pre- and post-step point are still << 137 // i.e. no effect for touchable
>> 138
>> 139 // A physics process always calculates the final state of the
>> 140 // particle relative to the initial state at the beginning
>> 141 // of the Step, i.e., based on information of G4Track (or
>> 142 // equivalently the PreStepPoint).
>> 143 // So, the differences (delta) between these two states have to be
>> 144 // calculated and be accumulated in PostStepPoint.
>> 145
>> 146 // Take note that the return type of GetMomentumChange is a
>> 147 // pointer to G4ThreeVector. Also it is a normalized
>> 148 // momentum vector.
>> 149
61 G4StepPoint* pPreStepPoint = pStep->GetPreS 150 G4StepPoint* pPreStepPoint = pStep->GetPreStepPoint();
62 G4StepPoint* pPostStepPoint = pStep->GetPost 151 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
>> 152 G4Track* aTrack = pStep->GetTrack();
>> 153 G4double mass = aTrack->GetDynamicParticle()->GetMass();
>> 154
>> 155 // uodate kinetic energy
>> 156 // now assume that no energy change in transportation
>> 157 // However it is not true in electric fields
>> 158 // Case for changing energy will be implemented in future
>> 159
63 160
64 // update momentum direction and energy 161 // update momentum direction and energy
65 if(isMomentumChanged) << 162 if (isMomentumChanged) {
66 { << 163 G4double energy;
67 pPostStepPoint->SetMomentumDirection(theMo << 164 energy= pPostStepPoint->GetKineticEnergy()
68 pPostStepPoint->SetKineticEnergy(theEnergy << 165 + (theEnergyChange - pPreStepPoint->GetKineticEnergy());
>> 166
>> 167 // calculate new momentum
>> 168 G4ThreeVector pMomentum = pPostStepPoint->GetMomentum()
>> 169 + ( CalcMomentum(theEnergyChange, theMomentumDirectionChange, mass)
>> 170 - pPreStepPoint->GetMomentum());
>> 171 G4double tMomentum = pMomentum.mag();
>> 172 G4ThreeVector direction(1.0,0.0,0.0);
>> 173 if( tMomentum > 0. ){
>> 174 G4double inv_Momentum= 1.0 / tMomentum;
>> 175 direction= pMomentum * inv_Momentum;
>> 176 }
>> 177 pPostStepPoint->SetMomentumDirection(direction);
>> 178 pPostStepPoint->SetKineticEnergy( energy );
69 } 179 }
70 if(isVelocityChanged) << 180 if (isVelocityChanged) pPostStepPoint->SetVelocity(theVelocityChange);
71 pPostStepPoint->SetVelocity(theVelocityCha << 181
>> 182 // stop case should not occur
>> 183 //pPostStepPoint->SetMomentumDirection(G4ThreeVector(1., 0., 0.));
>> 184
72 185
73 // update polarization 186 // update polarization
74 pPostStepPoint->SetPolarization(thePolarizat << 187 pPostStepPoint->AddPolarization( thePolarizationChange
>> 188 - pPreStepPoint->GetPolarization());
75 189
76 // update position and time 190 // update position and time
77 pPostStepPoint->SetPosition(thePositionChang << 191 pPostStepPoint->AddPosition( thePositionChange
78 pPostStepPoint->AddGlobalTime(theTimeChange << 192 - pPreStepPoint->GetPosition() );
79 pPostStepPoint->AddLocalTime(theTimeChange - << 193 pPostStepPoint->AddGlobalTime( theTimeChange
80 pPostStepPoint->SetProperTime(theProperTimeC << 194 - pPreStepPoint->GetLocalTime());
>> 195 pPostStepPoint->AddLocalTime( theTimeChange
>> 196 - pPreStepPoint->GetLocalTime());
>> 197 pPostStepPoint->AddProperTime( theProperTimeChange
>> 198 - pPreStepPoint->GetProperTime());
81 199
82 #ifdef G4VERBOSE 200 #ifdef G4VERBOSE
83 if(debugFlag) { CheckIt(*theCurrentTrack); } << 201 if (debugFlag) CheckIt(*aTrack);
84 #endif 202 #endif
85 203
86 // Update the G4Step specific attributes << 204 // Update the G4Step specific attributes
87 pStep->SetStepLength( theTrueStepLength ); << 205 //pStep->SetStepLength( theTrueStepLength );
88 pStep->SetControlFlag(theSteppingControlFlag << 206 // pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit );
89 << 207 pStep->SetControlFlag( theSteppingControlFlag );
90 return pStep; 208 return pStep;
>> 209 // return UpdateStepInfo(pStep);
91 } 210 }
92 211
93 // ------------------------------------------- <<
94 G4Step* G4ParticleChangeForTransport::UpdateSt 212 G4Step* G4ParticleChangeForTransport::UpdateStepForPostStep(G4Step* pStep)
95 { 213 {
96 // A physics process always calculates the f 214 // A physics process always calculates the final state of the particle
97 215
98 // Change volume only if some kinetic energy 216 // Change volume only if some kinetic energy remains
99 G4StepPoint* pPostStepPoint = pStep->GetPost 217 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
100 if(pPostStepPoint->GetKineticEnergy() > 0.0) << 218 if(pPostStepPoint->GetKineticEnergy() > 0.0) {
101 { << 219
102 // update next touchable 220 // update next touchable
103 // (touchable can be changed only at PostS 221 // (touchable can be changed only at PostStepDoIt)
104 pPostStepPoint->SetTouchableHandle(theTouc << 222 pPostStepPoint->SetTouchableHandle( theTouchableHandle );
105 223
106 pPostStepPoint->SetMaterial(theMaterialCha << 224 pPostStepPoint->SetMaterial( theMaterialChange );
107 pPostStepPoint->SetMaterialCutsCouple(theM << 225 pPostStepPoint->SetMaterialCutsCouple( theMaterialCutsCoupleChange );
108 pPostStepPoint->SetSensitiveDetector(theSe << 226 pPostStepPoint->SetSensitiveDetector( theSensitiveDetectorChange );
109 } 227 }
110 if(this->GetFirstStepInVolume()) << 228 if( this->GetFirstStepInVolume() ){
111 { <<
112 pStep->SetFirstStepFlag(); 229 pStep->SetFirstStepFlag();
113 } << 230 }else{
114 else << 231 pStep->ClearFirstStepFlag();
115 { << 232 }
116 pStep->ClearFirstStepFlag(); << 233 if( this->GetLastStepInVolume() ){
117 } <<
118 if(this->GetLastStepInVolume()) <<
119 { <<
120 pStep->SetLastStepFlag(); 234 pStep->SetLastStepFlag();
121 } << 235 }else{
122 else << 236 pStep->ClearLastStepFlag();
123 { <<
124 pStep->ClearLastStepFlag(); <<
125 } 237 }
126 // It used to call base class's method 238 // It used to call base class's method
127 // - but this would copy uninitialised dat 239 // - but this would copy uninitialised data members
128 // return G4ParticleChange::UpdateStepForPos 240 // return G4ParticleChange::UpdateStepForPostStep(pStep);
129 241
130 // Copying what the base class does would in 242 // Copying what the base class does would instead
131 // - also not useful 243 // - also not useful
132 // return G4VParticleChange::UpdateStepInfo( 244 // return G4VParticleChange::UpdateStepInfo(pStep);
133 245
134 return pStep; 246 return pStep;
135 } 247 }
136 248
137 // ------------------------------------------- << 249
>> 250 //----------------------------------------------------------------
>> 251 // methods for printing messages
>> 252 //
>> 253
138 void G4ParticleChangeForTransport::DumpInfo() 254 void G4ParticleChangeForTransport::DumpInfo() const
139 { 255 {
140 // use base-class DumpInfo << 256 // use base-class DumpInfo
141 G4ParticleChange::DumpInfo(); 257 G4ParticleChange::DumpInfo();
142 G4cout << " Touchable (pointer) : " < << 258
143 << theTouchableHandle() << G4endl; << 259 G4int oldprc = G4cout.precision(3);
>> 260 G4cout << " Touchable (pointer) : "
>> 261 << std::setw(20) << theTouchableHandle() << G4endl;
>> 262 G4cout.precision(oldprc);
144 } 263 }
>> 264
145 265