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26 // 26 //
>> 27 // $Id: G4FastStep.hh,v 1.8 2006/06/29 21:09:14 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-09-01 $
27 // 29 //
28 // << 30 //
29 //-------------------------------------------- 31 //---------------------------------------------------------------
30 // 32 //
31 // G4FastStep.hh 33 // G4FastStep.hh
32 // 34 //
33 // Description: 35 // Description:
34 // The G4FastStep class insures a friendly 36 // The G4FastStep class insures a friendly interface
35 // to manage the primary/secondaries final << 37 // to manage the primary/secondaries final state for
36 // Fast Simulation Models. This includes fi 38 // Fast Simulation Models. This includes final states of parent
37 // particle (normalized direction of the mo << 39 // particle (normalized direction of the momentum, energy, etc) and
38 // secondary particles generated by the par 40 // secondary particles generated by the parameterisation.
39 // 41 //
40 // The G4FastStep class acts also as the G4 42 // The G4FastStep class acts also as the G4ParticleChange
41 // for the Fast Simulation Process. So it i << 43 // for the Fast Simulation Process. So it inherites from
42 // the G4VParticleChange class and redefine << 44 // the G4VParticleChange class and redefines the four virtual
43 // methods : 45 // methods :
44 // 46 //
45 // virtual G4Step* UpdateStepForAtRest(G4S 47 // virtual G4Step* UpdateStepForAtRest(G4Step* Step);
46 // virtual G4Step* UpdateStepForAlongStep( 48 // virtual G4Step* UpdateStepForAlongStep(G4Step* Step);
47 // virtual G4Step* UpdateStepForPostStep(G 49 // virtual G4Step* UpdateStepForPostStep(G4Step* Step);
48 // virtual void Initialize(const G4Track&) 50 // virtual void Initialize(const G4Track&);
49 // 51 //
50 // History: 52 // History:
51 // Oct 97: Verderi && MoraDeFreitas - First 53 // Oct 97: Verderi && MoraDeFreitas - First Implementation.
52 // Dec 97: Verderi - ForceSteppingHitInvoca 54 // Dec 97: Verderi - ForceSteppingHitInvocation(),
53 // Set/GetTotalEnergyDepo 55 // Set/GetTotalEnergyDeposited() methods.
54 // Apr 98: MoraDeFreitas - G4FastStep becom 56 // Apr 98: MoraDeFreitas - G4FastStep becomes the G4ParticleChange
55 // for the Fast Simulatio 57 // for the Fast Simulation Process.
56 // Nov 04: Verderi - Add ProposeXXX methods 58 // Nov 04: Verderi - Add ProposeXXX methods. SetXXX ones are kept
57 // for backward compatibi << 59 // for backward compatibility.
58 // 60 //
59 //-------------------------------------------- 61 //---------------------------------------------------------------
60 62
>> 63
61 #ifndef G4FastStep_h 64 #ifndef G4FastStep_h
62 #define G4FastStep_h 65 #define G4FastStep_h
63 66
64 #include "G4ParticleMomentum.hh" <<
65 #include "G4ThreeVector.hh" <<
66 #include "G4ios.hh" <<
67 #include "globals.hh" 67 #include "globals.hh"
>> 68 #include "G4ios.hh"
>> 69 #include "G4ThreeVector.hh"
>> 70 #include "G4ParticleMomentum.hh"
68 class G4DynamicParticle; 71 class G4DynamicParticle;
69 #include "G4FastTrack.hh" <<
70 #include "G4VParticleChange.hh" 72 #include "G4VParticleChange.hh"
>> 73 #include "G4FastTrack.hh"
71 74
72 //------------------------------------------- 75 //-------------------------------------------
73 // 76 //
74 // G4FastStep class 77 // G4FastStep class
75 // 78 //
76 //------------------------------------------- 79 //-------------------------------------------
77 80
78 // Class Description: 81 // Class Description:
79 // The final state of the particles after par << 82 // The final state of the particles after parameterisation has to be returned through a G4FastStep
80 // reference. This final state is described a << 83 // reference. This final state is described as "requests" the tracking will apply after your
81 // parameterisation has been invoked. 84 // parameterisation has been invoked.
82 // 85 //
83 // To facilitate the developers work, changes << 86 // To facilitate the developers work, changes of position/normalized direction of the
84 // momentum/polarization can be specified in << 87 // momentum/polarization can be specified in the local coordinate system of the envelope or in the
85 // global one. 88 // global one.
86 // The default is local system coordinates. 89 // The default is local system coordinates.
87 // 90 //
88 91
89 class G4FastStep : public G4VParticleChange << 92 class G4FastStep: public G4VParticleChange
90 { 93 {
91 public: // Without description << 94 public: // with Description
92 //------------------------ << 95 void KillPrimaryTrack();
93 // Constructor/Destructor << 96 // Set the kinetic energy of the primary to zero, and set the "fStopAndKill" signal
94 //------------------------ << 97 // used by the stepping.
95 G4FastStep() = default; << 98
96 ~G4FastStep() override = default; << 99 // -- Methods used to change the position, normalized direction of
97 << 100 // the momentum, time etc... of the primary.
98 G4FastStep(const G4FastStep& right) = dele << 101 // .. space and time:
99 G4FastStep& operator=(const G4FastStep& ri << 102 void ProposePrimaryTrackFinalPosition (const G4ThreeVector &,
100 << 103 G4bool localCoordinates = true);
101 // Set the kinetic energy of the primary t << 104 // Set the primary track final position.
102 // used by the stepping. << 105 void SetPrimaryTrackFinalPosition (const G4ThreeVector &,
103 void KillPrimaryTrack(); << 106 G4bool localCoordinates = true);
104 << 107 // Set the primary track final position -- maintained for backward compatibility.
105 // -- Methods used to change the position, << 108
106 // the momentum, time etc... of the primar << 109
107 // .. space and time: << 110 void ProposePrimaryTrackFinalTime (G4double);
108 << 111 // Set the primary track final time.
109 // Set the primary track final position. << 112 void SetPrimaryTrackFinalTime (G4double);
110 void ProposePrimaryTrackFinalPosition(cons << 113 // Set the primary track final time -- maintained for backward compatibility.
111 << 114
112 // Set the primary track final position -- << 115
113 [[deprecated("use ProposePrimaryTrackFinal << 116 void ProposePrimaryTrackFinalProperTime (G4double);
114 void SetPrimaryTrackFinalPosition(const G4 << 117 // Set the primary final track Proper Time.
115 << 118 void SetPrimaryTrackFinalProperTime (G4double);
116 // Set the primary track final time. << 119 // Set the primary final track Proper Time -- maintained for backward compatibility.
117 void ProposePrimaryTrackFinalTime(G4double << 120
118 << 121
119 // Set the primary track final time -- mai << 122 // .. dynamics:
120 [[deprecated("use ProposePrimaryTrackFinal << 123 void ProposePrimaryTrackFinalMomentumDirection (const G4ThreeVector &,
121 void SetPrimaryTrackFinalTime(G4double); << 124 G4bool localCoordinates = true);
122 << 125 // Be careful: the Track Final Momentum means the normalized direction
123 // Set the primary final track Proper Time << 126 // of the momentum!
124 void ProposePrimaryTrackFinalProperTime(G4 << 127 void SetPrimaryTrackFinalMomentum (const G4ThreeVector &,
125 << 128 G4bool localCoordinates = true);
126 // Set the primary final track Proper Time << 129 // Set the primary track final momentum -- maintained for backward compatibility. Same as ProposePrimaryTrackMomentumDirection(...)
127 [[deprecated("use ProposePrimaryTrackPrope << 130
128 void SetPrimaryTrackFinalProperTime(G4doub << 131
129 << 132 void ProposePrimaryTrackFinalKineticEnergy (G4double);
130 // .. dynamics: << 133 // Set the primary track final kinetic energy.
131 << 134 void SetPrimaryTrackFinalKineticEnergy (G4double);
132 // Be careful: the Track Final Momentum me << 135 // Set the primary track final kinetic energy-- maintained for backward compatibility.
133 // of the momentum! << 136
134 void ProposePrimaryTrackFinalMomentumDirec << 137
135 << 138 void ProposePrimaryTrackFinalKineticEnergyAndDirection(G4double,
136 << 139 const G4ThreeVector &,
137 // Set the primary track final momentum -- << 140 G4bool localCoordinates
138 // ProposePrimaryTrackMomentumDirection(.. << 141 = true);
139 [[deprecated("use ProposePrimaryTrackMomen << 142 // Set the primary track final kinetic energy and direction.
140 void SetPrimaryTrackFinalMomentum(const G4 << 143 void SetPrimaryTrackFinalKineticEnergyAndDirection(G4double,
141 << 144 const G4ThreeVector &,
142 // Set the primary track final kinetic ene << 145 G4bool localCoordinates
143 void ProposePrimaryTrackFinalKineticEnergy << 146 = true);
144 << 147 // Set the primary track final kinetic energy and direction -- maintained for backward compatibility.
145 // Set the primary track final kinetic ene << 148
146 [[deprecated("use ProposePrimaryTrackFinal << 149
147 void SetPrimaryTrackFinalKineticEnergy(G4d << 150
148 << 151 void ProposePrimaryTrackFinalPolarization(const G4ThreeVector &,
149 // Set the primary track final kinetic ene << 152 G4bool localCoordinates = true);
150 void ProposePrimaryTrackFinalKineticEnergy << 153 // Set the primary track final polarization.
151 << 154 void SetPrimaryTrackFinalPolarization(const G4ThreeVector &,
152 << 155 G4bool localCoordinates = true);
153 // Set the primary track final kinetic ene << 156 // Set the primary track final polarization.
154 // compatibility. << 157
155 [[deprecated("use ProposePrimaryTrackFinal << 158
156 void SetPrimaryTrackFinalKineticEnergyAndD << 159 void ProposePrimaryTrackPathLength (G4double);
157 << 160 // Set the true path length of the primary track during the step.
158 << 161 void SetPrimaryTrackPathLength (G4double);
159 // Set the primary track final polarizatio << 162 // Set the true path length of the primary track during the step -- maintained for backward compatibility.
160 void ProposePrimaryTrackFinalPolarization( << 163
161 << 164 void ProposePrimaryTrackFinalEventBiasingWeight (G4double);
162 // Set the primary track final polarizatio << 165 // Set the weight applied for event biasing mechanism.
163 [[deprecated("use ProposePrimaryTrackFinal << 166 void SetPrimaryTrackFinalEventBiasingWeight (G4double);
164 void SetPrimaryTrackFinalPolarization(cons << 167 // Set the weight applied for event biasing mechanism -- kept for backward compatibility.
165 << 168
166 // Set the true path length of the primary << 169 // ------------------------------
167 void ProposePrimaryTrackPathLength(G4doubl << 170 // -- Management of secondaries:
168 << 171 // ------------------------------
169 // Set the true path length of the primary << 172
170 // compatibility. << 173 // ----------------------------------------------------
171 [[deprecated("use ProposePrimaryTrackPathL << 174 // -- The creation of secondaries is Done in two steps:
172 void SetPrimaryTrackPathLength(G4double); << 175 // -- 1) Give the total number of secondaries
173 << 176 // -- that the FastStep returns
174 // Set the weight applied for event biasin << 177 // -- to the tracking using:
175 void ProposePrimaryTrackFinalEventBiasingW << 178 // -- SetNumberOfSecondaryTracks()
176 << 179 // --
177 // Set the weight applied for event biasin << 180 // -- 2) Invoke the CreateSecondaryTrack() method
178 [[deprecated("use ProposePrimaryTrackFinal << 181 // -- to create one secondary at each time.
179 void SetPrimaryTrackFinalEventBiasingWeigh << 182 // ----------------------------------------------------
180 << 183
181 // ------------------------------ << 184 // -- Total Number of secondaries to be created,
182 // -- Management of secondaries: << 185 // -- (to be called first)
183 // ------------------------------ << 186 void SetNumberOfSecondaryTracks(G4int);
184 << 187 // Set the total number of secondaries that will be created.
185 // --------------------------------------- << 188
186 // -- The creation of secondaries is Done << 189 // -- Number of secondaries effectively stored:
187 // -- 1) Give the total number of sec << 190 // -- (incremented at each CreateSecondaryTrack()
188 // -- that the FastStep returns << 191 // -- call)
189 // -- to the tracking using: << 192 G4int GetNumberOfSecondaryTracks();
190 // -- SetNumberOfSecondaryTracks() << 193 // Returns the number of secondaries effectively stored.
191 // -- << 194
192 // -- 2) Invoke the CreateSecondaryTr << 195 // -- Create a secondary: the arguments are:
193 // -- to create one secondary at e << 196 // -- * G4DynamicsParticle: see header file, many constructors exist
194 // --------------------------------------- << 197 // -- (allow to set particle type + energy +
195 << 198 // -- the normalized direction of momentum...)
196 // Set the total number of secondaries tha << 199 // -- * G4ThreeVector : Polarization (not in G4ParticleChange constructor)
197 // -- Total Number of secondaries to be cr << 200 // -- * G4ThreeVector : Position
198 // -- (to be called first) << 201 // -- * G4double : Time
199 void SetNumberOfSecondaryTracks(G4int); << 202 // -- * G4bool : says if Position/Momentum are given in the
200 << 203 // -- local coordinate system (true by default)
201 // Returns the number of secondaries effec << 204 // -- Returned value: pointer to the track created.
202 // -- Number of secondaries effectively st << 205 G4Track* CreateSecondaryTrack(const G4DynamicParticle&,
203 // -- (incremented at each CreateSecondary << 206 G4ThreeVector,
204 // -- call) << 207 G4ThreeVector,
205 G4int GetNumberOfSecondaryTracks(); << 208 G4double,
206 << 209 G4bool localCoordinates=true);
207 // -- Create a secondary: the arguments ar << 210 // Create a secondary. The arguments are:
208 // -- * G4DynamicsParticle: see header << 211 //
209 // -- (allow to << 212 // G4DynamicsParticle: see the G4DynamicsParticle reference, many constructors exist
210 // -- the normalized direction of momentum << 213 // (allow to set particle type + energy + the normalized direction of
211 // -- * G4ThreeVector : Polarizati << 214 // momentum...);
212 // -- * G4ThreeVector : Position << 215 // G4ThreeVector : Polarization;
213 // -- * G4double : Time << 216 // G4ThreeVector : Position;
214 // -- * G4bool : says if Po << 217 // G4double : Time;
215 // -- local coor << 218 // G4bool : says if Position/Momentum are given in the local envelope coordinate
216 // -- Returned value: pointer to the track << 219 // system (true by default).
217 G4Track* CreateSecondaryTrack(const G4Dyna << 220 //
218 G4bool local << 221 // Returned value: pointer to the track created.
219 << 222 //
220 //-- Create a secondary: the difference wi << 223
221 //-- is that the Polarization is not given << 224 //-- Create a secondary: the difference with he above declaration
222 //-- in the G4DynamicParticle. << 225 //-- is that the Polarization is not given and is assumed already set
223 //-- Returned value: pointer to the track << 226 //-- in the G4DynamicParticle.
224 G4Track* CreateSecondaryTrack(const G4Dyna << 227 //-- Returned value: pointer to the track created
225 G4bool local << 228 G4Track* CreateSecondaryTrack(const G4DynamicParticle&,
226 << 229 G4ThreeVector,
227 // Returns a pointer on the i-th secondary << 230 G4double,
228 G4Track* GetSecondaryTrack(G4int); << 231 G4bool localCoordinates=true);
229 << 232 // Create a secondary. The difference with he above declaration is that the Polarization is not
230 //---------------------------------------- << 233 // given and is assumed already set in the G4DynamicParticle.
231 // << 234 //
232 // Total energy deposit in the "fast Ste << 235 // Returned value: pointer to the track created
233 // (a default should be provided in futu << 236
234 // which can be: << 237
235 // delta energy of primary - << 238
236 // energy of the secondaries) << 239 G4Track* GetSecondaryTrack(G4int);
237 // This allow the user to Store a consis << 240 // Returns a pointer on the i-th secondary track created.
238 // information in the G4Trajectory. << 241
239 // << 242 //------------------------------------------------
240 //---------------------------------------- << 243 //
241 // Set the total energy deposited. << 244 // Total energy deposit in the "fast Step"
242 void ProposeTotalEnergyDeposited(G4double << 245 // (a default should be provided in future,
243 << 246 // which can be:
244 // Set the total energy deposited -- kept << 247 // delta energy of primary -
245 // It should be the delta energy of primar << 248 // energy of the secondaries)
246 [[deprecated("use ProposeTotalEnergyDeposi << 249 // This allow the user to Store a consistent
247 void SetTotalEnergyDeposited(G4double anEn << 250 // information in the G4Trajectory.
248 << 251 //
249 // Returns the total energy deposited. << 252 //------------------------------------------------
250 G4double GetTotalEnergyDeposited() const; << 253 void ProposeTotalEnergyDeposited(G4double anEnergyPart);
251 << 254 // Set the total energy deposited.
252 // Control of the stepping manager Hit inv << 255 void SetTotalEnergyDeposited(G4double anEnergyPart);
253 // << 256 // Set the total energy deposited -- kept for backward compatibility.
254 // In a usual parameterisation, the contro << 257 // It should be the delta energy of primary less the energy of the secondaries.
255 // responsability in his G4VFastSimulation << 258
256 // << 259 G4double GetTotalEnergyDeposited() const;
257 // However, in the particular case the G4F << 260 // Returns the total energy deposited.
258 // replacement only (ie replaces all the * << 261
259 // G4Step), the user can delegate to the G << 262 void ForceSteppingHitInvocation();
260 // the Hit()method of the current sensitiv << 263 // Control of the stepping manager Hit invocation.
261 // << 264 //
262 // By default, the G4SteppingManager is as << 265 // In a usual parameterisation, the control of the hits production is under the user
263 // parameterisation is invoked. << 266 // responsability in his G4VFastSimulationModel (he generally produces several hits at once.)
264 void ForceSteppingHitInvocation(); << 267 //
265 << 268 // However, in the particular case the G4FastSimulation user's model acts as the physics
266 // ======================================= << 269 // replacement only (ie replaces all the ***DoIt() and leads to the construction of a meaningful
267 // Stepping interface. << 270 // G4Step), the user can delegate to the G4SteppingManager the responsability to invoke
268 // ======================================= << 271 // the Hit()method of the current sensitive if any.
269 // --- the following methods are for updat << 272 //
270 // Return the pointer to the G4Step after << 273 // By default, the G4SteppingManager is asked to NOT invoke this Hit() method when parameterisation
271 // by using final state information of the << 274 // is invoked.
272 // << 275 //
273 // The Fast Simulation Mechanism doesn't c << 276
274 // state on the AlongDoIt loop, so the def << 277
275 // virtual G4Step* UpdateStepForAlongStep( << 278 public: // Without description
276 << 279 //=======================================================
277 G4Step* UpdateStepForAtRest(G4Step* Step) << 280 // Implementation section and kernel interfaces.
278 G4Step* UpdateStepForPostStep(G4Step* Step << 281 //=======================================================
279 << 282 //------------------------
280 // A Model gives the final state of the pa << 283 // Constructor/Destructor
281 // based on information of G4FastTrack. So << 284 //------------------------
282 // Initialize method is an interface to th << 285 G4FastStep();
283 // G4FastSimulationManager to Initialize t << 286 virtual ~G4FastStep();
284 // G4FastStep. << 287
285 << 288 // equal/unequal operator
286 void Initialize(const G4FastTrack&); << 289 G4bool operator==(const G4FastStep &right) const;
287 << 290 G4bool operator!=(const G4FastStep &right) const;
288 // for Debug << 291
289 void DumpInfo() const override; << 292 protected:
290 G4bool CheckIt(const G4Track&) override; << 293 // hide copy constructor and assignment operator as protected
291 << 294 G4FastStep (const G4FastStep &right);
292 private: << 295 G4FastStep & operator= (const G4FastStep &right);
293 //======================================== << 296
294 // Private Internal methods (implementatio << 297 public:
295 //======================================== << 298 // ===============================================
296 << 299 // Stepping interface.
297 // G4FastStep should never be Initialized << 300 // ===============================================
298 // but we must define it to avoid compiler << 301 // --- the following methods are for updating G4Step -----
299 void Initialize(const G4Track&) override; << 302 // Return the pointer to the G4Step after updating the Step information
300 << 303 // by using final state information of the track given by a Model.
301 // -- Utility functions -- << 304 //
302 //--- methods to keep information of the f << 305 // The Fast Simulation Mechanism doesn't change the track's final
303 // IMPORTANT NOTE: Although the name of t << 306 // state on the AlongDoIt loop, so the default one all we need.
304 // "Change", what it stores (and returns << 307 //virtual G4Step* UpdateStepForAlongStep(G4Step* Step);
305 // values of the Position, the normalize << 308
306 // etc. << 309 G4Step* UpdateStepForAtRest(G4Step* Step);
307 << 310 G4Step* UpdateStepForPostStep(G4Step* Step);
308 // Set theMomentumChange vector: it is the << 311
309 // direction. << 312 // A Model gives the final state of the particle
310 void SetMomentumChange(G4double Px, G4doub << 313 // based on information of G4FastTrack. So the
311 void SetMomentumChange(const G4ThreeVector << 314 // Initialize method is an interface to the
312 << 315 // G4FastSimulationManager to Initialize the
313 //======================================== << 316 // G4FastStep.
314 // Data members. << 317
315 //======================================== << 318 void Initialize(const G4FastTrack&);
316 // theMomentumChange is the vector contai << 319
317 // direction after the invoked process. T << 320 private:
318 // of the momentum direction of the parti << 321 //===================================================
319 // The responsibility to apply the change << 322 // Private Internal methods (implementation).
320 // which invoked the process. << 323 //===================================================
321 G4ParticleMomentum theMomentumChange; << 324
322 << 325 // G4FastStep should never be Initialized in this way
323 // The changed (final) polarization of a << 326 // but we must define it to avoid compiler warnings.
324 G4ThreeVector thePolarizationChange; << 327 void Initialize(const G4Track&);
325 << 328
326 // The final kinetic energy of the curren << 329 // -- Utility functions --
327 G4double theEnergyChange = 0.0; << 330 //--- methods to keep information of the final state--
328 << 331 // IMPORTANT NOTE: Although the name of the class and methods are
329 // The changed (final) position of a give << 332 // "Change", what it stores (and returns in get) are the "FINAL"
330 G4ThreeVector thePositionChange; << 333 // values of the Position, the normalized direction of Momentum,
331 << 334 // etc.
332 // The changed (final) global time of a g << 335
333 G4double theTimeChange = 0.0; << 336 // Set theMomentumChange vector: it is the final unitary momentum
334 << 337 // direction.
335 // The changed (final) proper time of a g << 338 void SetMomentumChange(G4double Px, G4double Py, G4double Pz);
336 G4double theProperTimeChange = 0.0; << 339 void SetMomentumChange(const G4ThreeVector& Pfinal);
337 << 340
338 // The reference G4FastTrack << 341 //=====================================================
339 const G4FastTrack* fFastTrack = nullptr; << 342 // Data members.
340 << 343 //=====================================================
341 // weight for event biasing mechanism: << 344 // theMomentumChange is the vector containing the final momentum
342 G4double theWeightChange = 0.0; << 345 // direction after the invoked process. The application of the change
>> 346 // of the momentum direction of the particle is not Done here.
>> 347 // The responsibility to apply the change is up the entity
>> 348 // which invoked the process.
>> 349 G4ParticleMomentum theMomentumChange;
>> 350
>> 351 // The changed (final) polarization of a given particle.
>> 352 G4ThreeVector thePolarizationChange;
>> 353
>> 354 // The final kinetic energy of the current particle.
>> 355 G4double theEnergyChange;
>> 356
>> 357 // The changed (final) position of a given particle.
>> 358 G4ThreeVector thePositionChange;
>> 359
>> 360 // The changed (final) global time of a given particle.
>> 361 G4double theTimeChange;
>> 362
>> 363 // The changed (final) proper time of a given particle.
>> 364 G4double theProperTimeChange;
>> 365
>> 366 // The reference G4FastTrack
>> 367 const G4FastTrack* fFastTrack;
>> 368
>> 369 // weight for event biasing mechanism:
>> 370 G4double theWeightChange;
>> 371
>> 372
>> 373 public:
>> 374 // for Debug
>> 375 void DumpInfo() const;
>> 376 G4bool CheckIt(const G4Track&);
343 }; 377 };
344 378
345 //******************************************** 379 //*******************************************************************
346 // 380 //
347 // Inline functions 381 // Inline functions
348 // 382 //
349 //******************************************** 383 //*******************************************************************
350 384
351 #include "G4FastStep.icc" 385 #include "G4FastStep.icc"
352 386
353 #endif 387 #endif
354 388