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25 // 22 //
26 // 23 //
>> 24 // $Id: G4Transportation.hh,v 1.7 2002/08/29 15:32:00 dressel Exp $
>> 25 // GEANT4 tag $Name: geant4-05-02 $
27 // 26 //
28 // 27 //
29 // ------------------------------------------- 28 // ------------------------------------------------------------
30 // GEANT 4 include file implementation << 29 // GEANT 4 include file implementation
31 // ------------------------------------------- <<
32 // 30 //
33 // Class description: << 31 // ------------------------------------------------------------
34 // 32 //
35 // G4Transportation is a process responsible f << 33 // This class' object is a process responsible for the transportation of
36 // a particle, i.e. the geometrical propagatio << 34 // a particle, ie the geometrical propagation that encounters the
37 // geometrical sub-volumes of the detectors. 35 // geometrical sub-volumes of the detectors.
38 // It is also tasked with part of updating the << 36 //
39 << 37 // It is also tasked with part of updating the "safety".
>> 38 //
40 // =========================================== 39 // =======================================================================
41 // Created: 19 March 1997, J. Apostolakis 40 // Created: 19 March 1997, J. Apostolakis
42 // =========================================== 41 // =======================================================================
43 #ifndef G4Transportation_hh 42 #ifndef G4Transportation_hh
44 #define G4Transportation_hh 1 43 #define G4Transportation_hh 1
45 44
46 #include "G4VProcess.hh" 45 #include "G4VProcess.hh"
>> 46 #include "G4FieldManager.hh"
47 47
>> 48 #include "G4Navigator.hh"
>> 49 #include "G4TransportationManager.hh"
>> 50 #include "G4PropagatorInField.hh"
48 #include "G4Track.hh" 51 #include "G4Track.hh"
49 #include "G4Step.hh" 52 #include "G4Step.hh"
50 #include "G4ParticleChangeForTransport.hh" 53 #include "G4ParticleChangeForTransport.hh"
51 54
52 class G4Navigator; <<
53 class G4PropagatorInField; <<
54 class G4SafetyHelper; <<
55 class G4TransportationLogger; <<
56 <<
57 class G4Transportation : public G4VProcess 55 class G4Transportation : public G4VProcess
58 { 56 {
59 // Concrete class that does the geometrical 57 // Concrete class that does the geometrical transport
60 58
61 public: // with description << 59 public:
62 << 60 G4Transportation();
63 G4Transportation( G4int verbosityLevel= 1 <<
64 ~G4Transportation(); 61 ~G4Transportation();
65 62
>> 63 // G4double GetContinuousStepLimit (
66 G4double AlongStepGetPhysicalInterac 64 G4double AlongStepGetPhysicalInteractionLength(
67 const G4Track& tr 65 const G4Track& track,
68 G4double p << 66 G4double previousStepSize,
69 G4double c << 67 G4double currentMinimumStep,
70 G4double& c << 68 G4double& currentSafety,
71 G4GPILSelec << 69 G4GPILSelection* selection
72 ); // override; << 70 );
73 71
74 G4VParticleChange* AlongStepDoIt( 72 G4VParticleChange* AlongStepDoIt(
75 const G4Track& tr << 73 const G4Track& track,
76 const G4Step& ste << 74 const G4Step& stepData
77 ); // override; << 75 );
78 76
>> 77 // This only does the relocation
>> 78 //
79 G4VParticleChange* PostStepDoIt( 79 G4VParticleChange* PostStepDoIt(
80 const G4Track& tr << 80 const G4Track& track,
81 const G4Step& st << 81 const G4Step& stepData
82 ); // override; << 82 );
83 // Responsible for the relocation <<
84 83
>> 84 // This forces the PostStepDoIt action to be called,
>> 85 // but does not limit the step.
>> 86 //
85 G4double PostStepGetPhysicalInteractionLe 87 G4double PostStepGetPhysicalInteractionLength(
86 const G4Track& , 88 const G4Track& ,
87 G4double previo << 89 G4double previousStepSize,
88 G4ForceCondition* << 90 G4ForceCondition* pForceCond
89 ); // override; << 91 );
90 // Forces the PostStepDoIt action to be <<
91 // but does not limit the step <<
92 92
93 inline G4bool FieldExertedForce() { retur << 93 // Access/set the assistant class that Propagate in a Field
94 <<
95 G4PropagatorInField* GetPropagatorInField 94 G4PropagatorInField* GetPropagatorInField();
96 void SetPropagatorInField( G4PropagatorIn 95 void SetPropagatorInField( G4PropagatorInField* pFieldPropagator);
97 // Access/set the assistant class that <<
98 96
99 inline G4double GetThresholdWarningEnergy << 97 // no operation in AtRestDoIt
100 inline G4double GetThresholdImportantEner << 98 G4double AtRestGetPhysicalInteractionLength(
101 inline G4int GetThresholdTrials() const; << 99 const G4Track& ,
102 << 100 G4ForceCondition*
103 inline void SetThresholdWarningEnergy( G4 << 101 ) { return -1.0; };
104 inline void SetThresholdImportantEnergy( <<
105 inline void SetThresholdTrials(G4int newM <<
106 // Get/Set parameters for killing loopers <<
107 // Above 'important' energy a 'looping' <<
108 // *NOT* be abandoned, except after fTh <<
109 // Below Warning energy, no verbosity for <<
110 <<
111 void SetHighLooperThresholds(); // Shortc <<
112 void SetLowLooperThresholds(); // Set low <<
113 void PushThresholdsToLogger(); // Inform <<
114 void ReportLooperThresholds(); // Print v <<
115 <<
116 inline G4double GetMaxEnergyKilled() cons <<
117 inline G4double GetSumEnergyKilled() cons <<
118 inline void ResetKilledStatistics( G4int <<
119 // Statistics for tracks killed (currentl <<
120 <<
121 inline void EnableShortStepOptimisation(G <<
122 // Whether short steps < safety will avoi <<
123 <<
124 static G4bool EnableMagneticMoment(G4bool <<
125 // Whether to enable particles to be defl <<
126 <<
127 static G4bool EnableGravity(G4bool useGra <<
128 // Whether to enable particles to be defl <<
129 <<
130 static void SetSilenceLooperWarnings( G <<
131 // Do not warn (or throw exception) about <<
132 static G4bool GetSilenceLooperWarnings(); <<
133 <<
134 public: // without description <<
135 static G4bool EnableUseMagneticMoment(G4b <<
136 { return EnableMagneticMoment(useMoment); <<
137 <<
138 public: // without description <<
139 <<
140 G4double AtRestGetPhysicalInteractionLeng <<
141 <<
142 { return -1.0; } // No operation in At <<
143 <<
144 G4VParticleChange* AtRestDoIt( const G4Tr <<
145 { return 0; } // No operation in At <<
146 <<
147 void StartTracking(G4Track* aTrack); <<
148 // Reset state for new (potentially res <<
149 <<
150 virtual void ProcessDescription(std::ostr <<
151 void PrintStatistics( std::ostream& outSt <<
152 <<
153 protected: <<
154 <<
155 void SetTouchableInformation(const G4Touc <<
156 102
157 void ReportMissingLogger(const char * met << 103 // no operation in AtRestDoIt
158 << 104 G4VParticleChange* AtRestDoIt(
>> 105 const G4Track& ,
>> 106 const G4Step&
>> 107 ) {return NULL;};
159 protected: 108 protected:
>> 109 // Checks whether a field exists for the "global" field manager.
>> 110 G4bool DoesGlobalFieldExist();
160 111
161 G4Navigator* fLinearNavigator; << 112 private:
162 // The navigator for the 'mass' geometr << 113 // The Propagators used to transport the particle
163 // (the real one, that physics occurs i << 114 G4Navigator* fLinearNavigator;
164 G4PropagatorInField* fFieldPropagator; 115 G4PropagatorInField* fFieldPropagator;
165 // The Propagators used to transport th <<
166 116
167 G4ThreeVector fTransportEndPosition= << 117 // Field Manager for the whole Detector
168 G4ThreeVector fTransportEndMomentumDir= << 118 // G4FieldManager* fGlobalFieldMgr; // Used MagneticField CC
169 G4double fTransportEndKineticEnergy= <<
170 G4ThreeVector fTransportEndSpin= G4Three <<
171 G4bool fMomentumChanged= true; <<
172 G4bool fEndGlobalTimeComputed= fal <<
173 G4double fCandidateEndGlobalTime= 0. <<
174 // The particle's state after this Step <<
175 <<
176 G4bool fAnyFieldExists= false; <<
177 <<
178 G4bool fParticleIsLooping = false; <<
179 G4bool fNewTrack= true; // Flag <<
180 G4bool fFirstStepInVolume= true; <<
181 G4bool fLastStepInVolume= false; // Last <<
182 // (temporary <<
183 G4bool fGeometryLimitedStep= true; <<
184 // Flag to determine whether a boundary <<
185 119
186 G4bool fFieldExertedForce= false; // Duri << 120 // The particle's state after this Step, Store for DoIt
>> 121 G4ThreeVector fTransportEndPosition;
>> 122 G4ThreeVector fTransportEndMomentumDir;
>> 123 G4double fTransportEndKineticEnergy;
>> 124 G4ThreeVector fTransportEndSpin;
>> 125 G4bool fMomentumChanged;
>> 126 G4bool fEnergyChanged;
>> 127 G4bool fEndGlobalTimeComputed;
>> 128 G4double fCandidateEndGlobalTime;
187 129
188 G4TouchableHandle fCurrentTouchableHandle << 130 G4bool fParticleIsLooping;
>> 131
>> 132 G4TouchableHandle fCurrentTouchableHandle;
189 133
190 G4ThreeVector fPreviousSftOrigin; << 134 // Whether a magnetic field exists ...
191 G4double fPreviousSafety; << 135 // G4bool fFieldExists;
192 // Remember last safety origin & value. << 136 // The above data member is problematic: it is useful only if
>> 137 // it is initialised. However the transportation process(es) are not
>> 138 // capable of doing this initialisation itself (themselves) and there
>> 139 // seems no alternative agent capable of doing it right now.
>> 140 // Eg, at construction time it is likely that the field manager has
>> 141 // not yet been informed about the detector's field
>> 142 // I cannot foresee how the transportation can be informed later. JA
>> 143 // The current answer is to ignore this data member and use
>> 144 // the member function DoesGlobalFieldExist() in its place ...
>> 145 // John Apostolakis, July 7, 1997
>> 146
>> 147 // Flag to determine whether a boundary was reached.
>> 148 G4bool fGeometryLimitedStep;
>> 149
>> 150 // Remember last safety origin & value.
>> 151 G4ThreeVector fPreviousSftOrigin;
>> 152 G4double fPreviousSafety;
193 153
>> 154 // New ParticleChange
194 G4ParticleChangeForTransport fParticleCha 155 G4ParticleChangeForTransport fParticleChange;
195 // New ParticleChange <<
196 <<
197 G4double fEndPointDistance; <<
198 <<
199 // Thresholds for looping particles: <<
200 // <<
201 G4double fThreshold_Warning_Energy = 1. <<
202 G4double fThreshold_Important_Energy = 1. <<
203 G4int fThresholdTrials = 10; // <<
204 // Above 'important' energy a 'looping' <<
205 // *NOT* be abandoned, except after fTh <<
206 G4int fAbandonUnstableTrials = 0; // <<
207 // <<
208 // Counter for steps in which particle re <<
209 // ( Used if it is above 'Important' Ene <<
210 G4int fNoLooperTrials= 0; <<
211 <<
212 // Statistics for tracks abandoned due to <<
213 // <<
214 G4double fSumEnergyKilled= 0.0; <<
215 G4double fSumEnerSqKilled= 0.0; <<
216 G4double fMaxEnergyKilled= -1.0; <<
217 G4int fMaxEnergyKilledPDG= 0; <<
218 unsigned long fNumLoopersKilled= 0; <<
219 G4double fSumEnergyKilled_NonElectron= 0. <<
220 G4double fSumEnerSqKilled_NonElectron= 0. <<
221 G4double fMaxEnergyKilled_NonElectron= -1 <<
222 G4int fMaxEnergyKilled_NonElecPDG= 0; <<
223 unsigned long fNumLoopersKilled_NonElectr <<
224 G4double fSumEnergySaved= 0.0; <<
225 G4double fMaxEnergySaved= -1.0; <<
226 G4double fSumEnergyUnstableSaved = 0.0; <<
227 // Whether to avoid calling G4Navigator f <<
228 // If using it, the safety estimate for e <<
229 // <<
230 G4bool fShortStepOptimisation; <<
231 <<
232 G4SafetyHelper* fpSafetyHelper; // To <<
233 G4TransportationLogger* fpLogger; // Rep <<
234 <<
235 protected: <<
236 156
237 static G4bool fUseMagneticMoment; << 157 G4double endpointDistance;
238 static G4bool fUseGravity; <<
239 static G4bool fSilenceLooperWarnings; // <<
240 <<
241 }; 158 };
242 159
>> 160
243 #include "G4Transportation.icc" 161 #include "G4Transportation.icc"
244 162
245 #endif 163 #endif
>> 164
>> 165 // End of G4Transportation.hh
246 166