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25 // 22 //
26 // G4ParticleChangeForTransport class implemen <<
27 // 23 //
28 // Author: Hisaya Kurashige, 10 May 1998 << 24 // $Id: G4ParticleChangeForTransport.cc,v 1.11 2001/10/22 04:19:41 kurasige Exp $
29 // ------------------------------------------- << 25 // GEANT4 tag $Name: geant4-04-00 $
>> 26 //
>> 27 //
>> 28 // --------------------------------------------------------------
>> 29 // GEANT 4 class implementation file
>> 30 //
>> 31 //
>> 32 //
>> 33 // ------------------------------------------------------------
>> 34 // Implemented for the new scheme 10 May. 1998 H.Kurahige
>> 35 // Correct tratment of fpNextTouchable 12 May. 1998 H.Kurashige
>> 36 // --------------------------------------------------------------
30 37
31 #include "G4ParticleChangeForTransport.hh" 38 #include "G4ParticleChangeForTransport.hh"
32 #include "G4TouchableHandle.hh" 39 #include "G4TouchableHandle.hh"
33 #include "G4Track.hh" 40 #include "G4Track.hh"
34 #include "G4Step.hh" 41 #include "G4Step.hh"
35 #include "G4TrackFastVector.hh" 42 #include "G4TrackFastVector.hh"
36 #include "G4DynamicParticle.hh" 43 #include "G4DynamicParticle.hh"
37 44
38 // ------------------------------------------- << 45 G4ParticleChangeForTransport::G4ParticleChangeForTransport():G4ParticleChange()
39 G4ParticleChangeForTransport::G4ParticleChange <<
40 { 46 {
41 // Disable flag that is enabled in G4VPartic << 47 if (verboseLevel>2) {
42 debugFlag = false; << 48 G4cout << "G4ParticleChangeForTransport::G4ParticleChangeForTransport() " << G4endl;
>> 49 }
43 } 50 }
44 51
45 // ------------------------------------------- << 52 G4ParticleChangeForTransport::~G4ParticleChangeForTransport()
46 G4Step* G4ParticleChangeForTransport::UpdateSt << 53 {
>> 54 if (verboseLevel>2) {
>> 55 G4cout << "G4ParticleChangeForTransport::~G4ParticleChangeForTransport() " << G4endl;
>> 56 }
>> 57 }
>> 58
>> 59
>> 60 G4ParticleChangeForTransport::G4ParticleChangeForTransport(const G4ParticleChangeForTransport &right):G4ParticleChange(right)
47 { 61 {
48 // Update the G4Step specific attributes << 62 if (verboseLevel>0) {
>> 63 G4cout << "G4ParticleChangeForTransport:: copy constructor is called " << G4endl;
>> 64 }
>> 65 theTouchableHandle = right.theTouchableHandle;
>> 66 }
>> 67
>> 68 // assignemnt operator
>> 69 G4ParticleChangeForTransport & G4ParticleChangeForTransport::operator=(const G4ParticleChangeForTransport &right)
>> 70 {
>> 71 if (verboseLevel>1) {
>> 72 G4cout << "G4ParticleChangeForTransport:: assignment operator is called " << G4endl;
>> 73 }
>> 74 if (this != &right)
>> 75 {
>> 76 theListOfSecondaries = right.theListOfSecondaries;
>> 77 theSizeOftheListOfSecondaries = right.theSizeOftheListOfSecondaries;
>> 78 theNumberOfSecondaries = right.theNumberOfSecondaries;
>> 79 theStatusChange = right.theStatusChange;
>> 80 theTouchableHandle = right.theTouchableHandle;
>> 81 theMaterialChange = right.theMaterialChange;
>> 82 theMomentumDirectionChange = right.theMomentumDirectionChange;
>> 83 thePolarizationChange = right.thePolarizationChange;
>> 84 thePositionChange = right.thePositionChange;
>> 85 theTimeChange = right.theTimeChange;
>> 86 theEnergyChange = right.theEnergyChange;
>> 87 theTrueStepLength = right.theTrueStepLength;
>> 88 theLocalEnergyDeposit = right.theLocalEnergyDeposit;
>> 89 theSteppingControlFlag = right.theSteppingControlFlag;
>> 90 }
>> 91 return *this;
>> 92 }
>> 93
>> 94 //----------------------------------------------------------------
>> 95 // methods for updating G4Step
>> 96 //
>> 97
>> 98 G4Step* G4ParticleChangeForTransport::UpdateStepForAtRest(G4Step* pStep)
>> 99 {
>> 100 // Nothing happens for AtRestDoIt
>> 101 if (verboseLevel>0) {
>> 102 G4cout << "G4ParticleChangeForTransport::UpdateStepForAtRest() is called" << G4endl;
>> 103 G4cout << " Nothing happens for this method " << G4endl;
>> 104 }
>> 105 // Update the G4Step specific attributes
49 return UpdateStepInfo(pStep); 106 return UpdateStepInfo(pStep);
50 } 107 }
51 108
52 // ------------------------------------------- << 109
53 G4Step* G4ParticleChangeForTransport::UpdateSt 110 G4Step* G4ParticleChangeForTransport::UpdateStepForAlongStep(G4Step* pStep)
54 { 111 {
55 // Smooth curved tajectory representation: l << 112 // copy of G4ParticleChange::UpdateStepForAlongStep
56 // the auxiliary trajectory points (jacek 30 << 113 // i.e. no effect for touchable
57 pStep->SetPointerToVectorOfAuxiliaryPoints(f << 114
58 << 115 // A physics process always calculates the final state of the
59 // Most of the code assumes that transportat << 116 // particle relative to the initial state at the beginning
60 // so the pre- and post-step point are still << 117 // of the Step, i.e., based on information of G4Track (or
61 G4StepPoint* pPreStepPoint = pStep->GetPreS << 118 // equivalently the PreStepPoint).
62 G4StepPoint* pPostStepPoint = pStep->GetPost << 119 // So, the differences (delta) between these two states have to be
>> 120 // calculated and be accumulated in PostStepPoint.
>> 121
>> 122 // Take note that the return type of GetMomentumChange is a
>> 123 // pointer to G4ThreeVector. Also it is a normalized
>> 124 // momentum vector.
>> 125
>> 126 G4StepPoint* pPreStepPoint = pStep->GetPreStepPoint();
>> 127 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
>> 128 G4Track* aTrack = pStep->GetTrack();
>> 129 G4double mass = aTrack->GetDynamicParticle()->GetMass();
>> 130
>> 131 // uodate kinetic energy
>> 132 // now assume that no energy change in transportation
>> 133 // However it is not true in electric fields
>> 134 // Case for changing energy will be implemented in future
63 135
>> 136
64 // update momentum direction and energy 137 // update momentum direction and energy
65 if(isMomentumChanged) << 138 if (isMomentumChanged) {
66 { << 139 G4double energy;
67 pPostStepPoint->SetMomentumDirection(theMo << 140 energy= pPostStepPoint->GetKineticEnergy()
68 pPostStepPoint->SetKineticEnergy(theEnergy << 141 + (theEnergyChange - pPreStepPoint->GetKineticEnergy());
>> 142
>> 143 // calculate new momentum
>> 144 G4ThreeVector pMomentum = pPostStepPoint->GetMomentum()
>> 145 + ( CalcMomentum(theEnergyChange, theMomentumDirectionChange, mass)
>> 146 - pPreStepPoint->GetMomentum());
>> 147 G4double tMomentum = pMomentum.mag();
>> 148 G4ThreeVector direction(1.0,0.0,0.0);
>> 149 if( tMomentum > 0. ){
>> 150 G4double inv_Momentum= 1.0 / tMomentum;
>> 151 direction= pMomentum * inv_Momentum;
>> 152 }
>> 153 pPostStepPoint->SetMomentumDirection(direction);
>> 154 pPostStepPoint->SetKineticEnergy( energy );
69 } 155 }
70 if(isVelocityChanged) <<
71 pPostStepPoint->SetVelocity(theVelocityCha <<
72 156
73 // update polarization << 157 // stop case should not occur
74 pPostStepPoint->SetPolarization(thePolarizat << 158 //pPostStepPoint->SetMomentumDirection(G4ThreeVector(1., 0., 0.));
>> 159
75 160
>> 161 // update polarization
>> 162 pPostStepPoint->AddPolarization( thePolarizationChange
>> 163 - pPreStepPoint->GetPolarization());
>> 164
76 // update position and time 165 // update position and time
77 pPostStepPoint->SetPosition(thePositionChang << 166 pPostStepPoint->AddPosition( thePositionChange
78 pPostStepPoint->AddGlobalTime(theTimeChange << 167 - pPreStepPoint->GetPosition() );
79 pPostStepPoint->AddLocalTime(theTimeChange - << 168 pPostStepPoint->AddGlobalTime( theTimeChange
80 pPostStepPoint->SetProperTime(theProperTimeC << 169 - pPreStepPoint->GetGlobalTime());
>> 170 pPostStepPoint->AddLocalTime( theTimeChange
>> 171 - pPreStepPoint->GetGlobalTime());
>> 172 pPostStepPoint->AddProperTime( theProperTimeChange
>> 173 - pPreStepPoint->GetProperTime());
81 174
82 #ifdef G4VERBOSE 175 #ifdef G4VERBOSE
83 if(debugFlag) { CheckIt(*theCurrentTrack); } << 176 if (debugFlag) CheckIt(*aTrack);
84 #endif 177 #endif
85 178
86 // Update the G4Step specific attributes << 179 // Update the G4Step specific attributes
87 pStep->SetStepLength( theTrueStepLength ); << 180 //pStep->SetStepLength( theTrueStepLength );
88 pStep->SetControlFlag(theSteppingControlFlag << 181 // pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit );
89 << 182 pStep->SetControlFlag( theSteppingControlFlag );
90 return pStep; 183 return pStep;
>> 184 // return UpdateStepInfo(pStep);
91 } 185 }
92 186
93 // ------------------------------------------- <<
94 G4Step* G4ParticleChangeForTransport::UpdateSt 187 G4Step* G4ParticleChangeForTransport::UpdateStepForPostStep(G4Step* pStep)
95 { << 188 {
96 // A physics process always calculates the f 189 // A physics process always calculates the final state of the particle
97 190
98 // Change volume only if some kinetic energy << 191 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
99 G4StepPoint* pPostStepPoint = pStep->GetPost << 192
100 if(pPostStepPoint->GetKineticEnergy() > 0.0) << 193 // update next touchable
101 { << 194 // (touchable can be changed only at PostStepDoIt)
102 // update next touchable << 195 pPostStepPoint->SetTouchableHandle( theTouchableHandle );
103 // (touchable can be changed only at PostS << 196
104 pPostStepPoint->SetTouchableHandle(theTouc << 197 pPostStepPoint->SetMaterial( theMaterialChange );
105 << 198
106 pPostStepPoint->SetMaterial(theMaterialCha << 199 // It used to call base class's method
107 pPostStepPoint->SetMaterialCutsCouple(theM <<
108 pPostStepPoint->SetSensitiveDetector(theSe <<
109 } <<
110 if(this->GetFirstStepInVolume()) <<
111 { <<
112 pStep->SetFirstStepFlag(); <<
113 } <<
114 else <<
115 { <<
116 pStep->ClearFirstStepFlag(); <<
117 } <<
118 if(this->GetLastStepInVolume()) <<
119 { <<
120 pStep->SetLastStepFlag(); <<
121 } <<
122 else <<
123 { <<
124 pStep->ClearLastStepFlag(); <<
125 } <<
126 // It used to call base class's method <<
127 // - but this would copy uninitialised dat 200 // - but this would copy uninitialised data members
128 // return G4ParticleChange::UpdateStepForPos 201 // return G4ParticleChange::UpdateStepForPostStep(pStep);
129 202
130 // Copying what the base class does would in << 203 // Copying what the base class does would instead
131 // - also not useful 204 // - also not useful
132 // return G4VParticleChange::UpdateStepInfo( 205 // return G4VParticleChange::UpdateStepInfo(pStep);
133 206
134 return pStep; << 207 return pStep;
135 } 208 }
136 209
137 // ------------------------------------------- << 210 //----------------------------------------------------------------
>> 211 // methods for printing messages
>> 212 //
>> 213
138 void G4ParticleChangeForTransport::DumpInfo() 214 void G4ParticleChangeForTransport::DumpInfo() const
139 { 215 {
140 // use base-class DumpInfo << 216 // use base-class DumpInfo
141 G4ParticleChange::DumpInfo(); 217 G4ParticleChange::DumpInfo();
142 G4cout << " Touchable (pointer) : " < << 218
143 << theTouchableHandle() << G4endl; << 219 G4cout.precision(3);
>> 220 G4cout << " Touchable (pointer) : "
>> 221 << G4std::setw(20) << theTouchableHandle()
>> 222 << G4endl;
144 } 223 }
>> 224
>> 225
>> 226
>> 227
>> 228
>> 229
>> 230
>> 231
145 232