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G4ITTransportation.hh
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26 // $Id: G4ITTransportation.hh 64374 2012-10-31 16:37:23Z gcosmo $
27 //
31 //
32 // Original Author : John Apostolakis
33 //
34 // Contact : Mathieu Karamitros (kara (AT) cenbg . in2p3 . fr)
35 //
36 // WARNING : This class is released as a prototype.
37 // It might strongly evolve or even disapear in the next releases.
38 //
39 // -------------------------------------------------------------------
40 
41 #ifndef G4ITTransportation_H
42 #define G4ITTransportation_H
43 
45 
46 #include "G4IT.hh"
47 #include "G4VITProcess.hh"
48 #include "G4Track.hh"
49 #include "G4Step.hh"
51 
52 class G4ITNavigator;
53 //class G4Navigator;
54 class G4SafetyHelper;
56 
58 {
59  // Concrete class that does the geometrical transport
60 public: // with description
61 
62  G4ITTransportation(const G4String& aName = "ITTransportation",G4int verbosityLevel= 1);
63  virtual ~G4ITTransportation();
64 
66 
68 
70 
71  virtual void ComputeStep(const G4Track&,
72  const G4Step&,
73  const double timeStep,
74  double& spaceStep) ;
75 
76  virtual void StartTracking(G4Track* aTrack);
77  // Give to the track a pointer to the transportation state
78 
79 //________________________________________________________
80 public: // without description
81 
83  const G4Track& ,
85  )
86  {
87  return -1.0;
88  }
89  // No operation in AtRestDoIt.
90 
92  const G4Track& ,
93  const G4Step&
94  )
95  {
96  return 0;
97  }
98  // No operation in AtRestDoIt.
99 
101  const G4Track& track,
102  G4double , // previousStepSize
103  G4double currentMinimumStep,
104  G4double& currentSafety,
105  G4GPILSelection* selection);
106 
108  const G4Track& , // track
109  G4double , // previousStepSize
110  G4ForceCondition* pForceCond);
111 
112  virtual G4VParticleChange* AlongStepDoIt( const G4Track& track,
113  const G4Step& stepData );
114 
115  virtual G4VParticleChange* PostStepDoIt( const G4Track& track,
116  const G4Step& ) ;
117 
118 //________________________________________________________
119 // inline virtual G4double GetTransportationTime() ;
120 
122  void SetPropagatorInField( G4PropagatorInField* pFieldPropagator);
123  // Access/set the assistant class that Propagate in a Field.
124 
125  inline void SetVerboseLevel( G4int verboseLevel );
126  inline G4int GetVerboseLevel() const;
127  // Level of warnings regarding eg energy conservation
128  // in field integration.
129 
130  inline G4double GetThresholdWarningEnergy() const;
131  inline G4double GetThresholdImportantEnergy() const;
132  inline G4int GetThresholdTrials() const;
133 
134  inline void SetThresholdWarningEnergy( G4double newEnWarn );
135  inline void SetThresholdImportantEnergy( G4double newEnImp );
136  inline void SetThresholdTrials(G4int newMaxTrials );
137 
138  // Get/Set parameters for killing loopers:
139  // Above 'important' energy a 'looping' particle in field will
140  // *NOT* be abandoned, except after fThresholdTrials attempts.
141  // Below Warning energy, no verbosity for looping particles is issued
142 
143  inline G4double GetMaxEnergyKilled() const;
144  inline G4double GetSumEnergyKilled() const;
145  inline void ResetKilledStatistics( G4int report = 1);
146  // Statistics for tracks killed (currently due to looping in field)
147 
148  inline void EnableShortStepOptimisation(G4bool optimise=true);
149  // Whether short steps < safety will avoid to call Navigator (if field=0)
150 
151 protected :
152  //________________________________________________________________
153  // Protected methods
155  // Checks whether a field exists for the "global" field manager.
156 
157  //________________________________________________________________
158  // Process information
160  {
161  public :
163  virtual ~G4ITTransportationState();
164 
174  // The particle's state after this Step, Store for DoIt
175 
178  // Flag to determine whether a boundary was reached.
179 
182  // Remember last safety origin & value.
183 
184  // Counter for steps in which particle reports 'looping',
185  // if it is above 'Important' Energy
187 
188  // G4bool fFieldExists;
189  // Whether a magnetic field exists ...
190  // A data member for this is problematic: it is useful only if it
191  // can be initialised and updated -- and a scheme is not yet possible.
192 
194  };
195 
197 
198  //________________________________________________________________
199  // Informations relative to the process only (meaning no information
200  // relative to the treated particle)
203  // The Propagators used to transport the particle
204 
205 // static const G4TouchableHandle nullTouchableHandle; // Points to (G4VTouchable*) 0
206 
208  // New ParticleChange
209 
210  // Thresholds for looping particles:
211  //
212  G4double fThreshold_Warning_Energy; // Warn above this energy
213  G4double fThreshold_Important_Energy; // Hesitate above this
214  G4int fThresholdTrials; // for this no of trials
215  // Above 'important' energy a 'looping' particle in field will
216  // *NOT* be abandoned, except after fThresholdTrials attempts.
218  // Below this energy, no verbosity for looping particles is issued
219 
220 
221  // Statistics for tracks abandoned
224 
225  // Whether to avoid calling G4Navigator for short step ( < safety)
226  // If using it, the safety estimate for endpoint will likely be smaller.
228 
229  G4SafetyHelper* fpSafetyHelper; // To pass it the safety value obtained
230 
231  // Verbosity
233  // Verbosity level for warnings
234  // eg about energy non-conservation in magnetic field.
235 
237  { fInstantiateProcessState = flag; }
238 
239  G4bool InstantiateProcessState() { return fInstantiateProcessState; }
240 
241 private :
242  G4bool fInstantiateProcessState;
243  G4ITTransportation& operator=(const G4ITTransportation&);
244 };
245 
246 #include "G4ITTransportation.icc"
247 #endif // G4ITTransportation_H