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25 // 25 //
26 // 26 //
>> 27 // $Id: G4FastStep.hh 68056 2013-03-13 14:44:48Z gcosmo $
27 // 28 //
28 // << 29 //
29 //-------------------------------------------- 30 //---------------------------------------------------------------
30 // 31 //
31 // G4FastStep.hh 32 // G4FastStep.hh
32 // 33 //
33 // Description: 34 // Description:
34 // The G4FastStep class insures a friendly 35 // The G4FastStep class insures a friendly interface
35 // to manage the primary/secondaries final << 36 // to manage the primary/secondaries final state for
36 // Fast Simulation Models. This includes fi 37 // Fast Simulation Models. This includes final states of parent
37 // particle (normalized direction of the mo << 38 // particle (normalized direction of the momentum, energy, etc) and
38 // secondary particles generated by the par 39 // secondary particles generated by the parameterisation.
39 // 40 //
40 // The G4FastStep class acts also as the G4 41 // The G4FastStep class acts also as the G4ParticleChange
41 // for the Fast Simulation Process. So it i << 42 // for the Fast Simulation Process. So it inherites from
42 // the G4VParticleChange class and redefine << 43 // the G4VParticleChange class and redefines the four virtual
43 // methods : 44 // methods :
44 // 45 //
45 // virtual G4Step* UpdateStepForAtRest(G4S 46 // virtual G4Step* UpdateStepForAtRest(G4Step* Step);
46 // virtual G4Step* UpdateStepForAlongStep( 47 // virtual G4Step* UpdateStepForAlongStep(G4Step* Step);
47 // virtual G4Step* UpdateStepForPostStep(G 48 // virtual G4Step* UpdateStepForPostStep(G4Step* Step);
48 // virtual void Initialize(const G4Track&) 49 // virtual void Initialize(const G4Track&);
49 // 50 //
50 // History: 51 // History:
51 // Oct 97: Verderi && MoraDeFreitas - First 52 // Oct 97: Verderi && MoraDeFreitas - First Implementation.
52 // Dec 97: Verderi - ForceSteppingHitInvoca 53 // Dec 97: Verderi - ForceSteppingHitInvocation(),
53 // Set/GetTotalEnergyDepo 54 // Set/GetTotalEnergyDeposited() methods.
54 // Apr 98: MoraDeFreitas - G4FastStep becom 55 // Apr 98: MoraDeFreitas - G4FastStep becomes the G4ParticleChange
55 // for the Fast Simulatio 56 // for the Fast Simulation Process.
56 // Nov 04: Verderi - Add ProposeXXX methods 57 // Nov 04: Verderi - Add ProposeXXX methods. SetXXX ones are kept
57 // for backward compatibi << 58 // for backward compatibility.
58 // 59 //
59 //-------------------------------------------- 60 //---------------------------------------------------------------
60 61
>> 62
61 #ifndef G4FastStep_h 63 #ifndef G4FastStep_h
62 #define G4FastStep_h 64 #define G4FastStep_h
63 65
64 #include "G4ParticleMomentum.hh" <<
65 #include "G4ThreeVector.hh" <<
66 #include "G4ios.hh" <<
67 #include "globals.hh" 66 #include "globals.hh"
>> 67 #include "G4ios.hh"
>> 68 #include "G4ThreeVector.hh"
>> 69 #include "G4ParticleMomentum.hh"
68 class G4DynamicParticle; 70 class G4DynamicParticle;
69 #include "G4FastTrack.hh" <<
70 #include "G4VParticleChange.hh" 71 #include "G4VParticleChange.hh"
>> 72 #include "G4FastTrack.hh"
71 73
72 //------------------------------------------- 74 //-------------------------------------------
73 // 75 //
74 // G4FastStep class 76 // G4FastStep class
75 // 77 //
76 //------------------------------------------- 78 //-------------------------------------------
77 79
78 // Class Description: 80 // Class Description:
79 // The final state of the particles after par << 81 // The final state of the particles after parameterisation has to be returned through a G4FastStep
80 // reference. This final state is described a << 82 // reference. This final state is described as "requests" the tracking will apply after your
81 // parameterisation has been invoked. 83 // parameterisation has been invoked.
82 // 84 //
83 // To facilitate the developers work, changes << 85 // To facilitate the developers work, changes of position/normalized direction of the
84 // momentum/polarization can be specified in << 86 // momentum/polarization can be specified in the local coordinate system of the envelope or in the
85 // global one. 87 // global one.
86 // The default is local system coordinates. 88 // The default is local system coordinates.
87 // 89 //
88 90
89 class G4FastStep : public G4VParticleChange << 91 class G4FastStep: public G4VParticleChange
90 { 92 {
91 public: // Without description << 93 public: // with Description
92 //------------------------ << 94 void KillPrimaryTrack();
93 // Constructor/Destructor << 95 // Set the kinetic energy of the primary to zero, and set the "fStopAndKill" signal
94 //------------------------ << 96 // used by the stepping.
95 G4FastStep() = default; << 97
96 ~G4FastStep() override = default; << 98 // -- Methods used to change the position, normalized direction of
97 << 99 // the momentum, time etc... of the primary.
98 G4FastStep(const G4FastStep& right) = dele << 100 // .. space and time:
99 G4FastStep& operator=(const G4FastStep& ri << 101 void ProposePrimaryTrackFinalPosition (const G4ThreeVector &,
100 << 102 G4bool localCoordinates = true);
101 // Set the kinetic energy of the primary t << 103 // Set the primary track final position.
102 // used by the stepping. << 104 void SetPrimaryTrackFinalPosition (const G4ThreeVector &,
103 void KillPrimaryTrack(); << 105 G4bool localCoordinates = true);
104 << 106 // Set the primary track final position -- maintained for backward compatibility.
105 // -- Methods used to change the position, << 107
106 // the momentum, time etc... of the primar << 108
107 // .. space and time: << 109 void ProposePrimaryTrackFinalTime (G4double);
108 << 110 // Set the primary track final time.
109 // Set the primary track final position. << 111 void SetPrimaryTrackFinalTime (G4double);
110 void ProposePrimaryTrackFinalPosition(cons << 112 // Set the primary track final time -- maintained for backward compatibility.
111 << 113
112 // Set the primary track final position -- << 114
113 [[deprecated("use ProposePrimaryTrackFinal << 115 void ProposePrimaryTrackFinalProperTime (G4double);
114 void SetPrimaryTrackFinalPosition(const G4 << 116 // Set the primary final track Proper Time.
115 << 117 void SetPrimaryTrackFinalProperTime (G4double);
116 // Set the primary track final time. << 118 // Set the primary final track Proper Time -- maintained for backward compatibility.
117 void ProposePrimaryTrackFinalTime(G4double << 119
118 << 120
119 // Set the primary track final time -- mai << 121 // .. dynamics:
120 [[deprecated("use ProposePrimaryTrackFinal << 122 void ProposePrimaryTrackFinalMomentumDirection (const G4ThreeVector &,
121 void SetPrimaryTrackFinalTime(G4double); << 123 G4bool localCoordinates = true);
122 << 124 // Be careful: the Track Final Momentum means the normalized direction
123 // Set the primary final track Proper Time << 125 // of the momentum!
124 void ProposePrimaryTrackFinalProperTime(G4 << 126 void SetPrimaryTrackFinalMomentum (const G4ThreeVector &,
125 << 127 G4bool localCoordinates = true);
126 // Set the primary final track Proper Time << 128 // Set the primary track final momentum -- maintained for backward compatibility. Same as ProposePrimaryTrackMomentumDirection(...)
127 [[deprecated("use ProposePrimaryTrackPrope << 129
128 void SetPrimaryTrackFinalProperTime(G4doub << 130
129 << 131 void ProposePrimaryTrackFinalKineticEnergy (G4double);
130 // .. dynamics: << 132 // Set the primary track final kinetic energy.
131 << 133 void SetPrimaryTrackFinalKineticEnergy (G4double);
132 // Be careful: the Track Final Momentum me << 134 // Set the primary track final kinetic energy-- maintained for backward compatibility.
133 // of the momentum! << 135
134 void ProposePrimaryTrackFinalMomentumDirec << 136
135 << 137 void ProposePrimaryTrackFinalKineticEnergyAndDirection(G4double,
136 << 138 const G4ThreeVector &,
137 // Set the primary track final momentum -- << 139 G4bool localCoordinates
138 // ProposePrimaryTrackMomentumDirection(.. << 140 = true);
139 [[deprecated("use ProposePrimaryTrackMomen << 141 // Set the primary track final kinetic energy and direction.
140 void SetPrimaryTrackFinalMomentum(const G4 << 142 void SetPrimaryTrackFinalKineticEnergyAndDirection(G4double,
141 << 143 const G4ThreeVector &,
142 // Set the primary track final kinetic ene << 144 G4bool localCoordinates
143 void ProposePrimaryTrackFinalKineticEnergy << 145 = true);
144 << 146 // Set the primary track final kinetic energy and direction -- maintained for backward compatibility.
145 // Set the primary track final kinetic ene << 147
146 [[deprecated("use ProposePrimaryTrackFinal << 148
147 void SetPrimaryTrackFinalKineticEnergy(G4d << 149
148 << 150 void ProposePrimaryTrackFinalPolarization(const G4ThreeVector &,
149 // Set the primary track final kinetic ene << 151 G4bool localCoordinates = true);
150 void ProposePrimaryTrackFinalKineticEnergy << 152 // Set the primary track final polarization.
151 << 153 void SetPrimaryTrackFinalPolarization(const G4ThreeVector &,
152 << 154 G4bool localCoordinates = true);
153 // Set the primary track final kinetic ene << 155 // Set the primary track final polarization.
154 // compatibility. << 156
155 [[deprecated("use ProposePrimaryTrackFinal << 157
156 void SetPrimaryTrackFinalKineticEnergyAndD << 158 void ProposePrimaryTrackPathLength (G4double);
157 << 159 // Set the true path length of the primary track during the step.
158 << 160 void SetPrimaryTrackPathLength (G4double);
159 // Set the primary track final polarizatio << 161 // Set the true path length of the primary track during the step -- maintained for backward compatibility.
160 void ProposePrimaryTrackFinalPolarization( << 162
161 << 163 void ProposePrimaryTrackFinalEventBiasingWeight (G4double);
162 // Set the primary track final polarizatio << 164 // Set the weight applied for event biasing mechanism.
163 [[deprecated("use ProposePrimaryTrackFinal << 165 void SetPrimaryTrackFinalEventBiasingWeight (G4double);
164 void SetPrimaryTrackFinalPolarization(cons << 166 // Set the weight applied for event biasing mechanism -- kept for backward compatibility.
165 << 167
166 // Set the true path length of the primary << 168 // ------------------------------
167 void ProposePrimaryTrackPathLength(G4doubl << 169 // -- Management of secondaries:
168 << 170 // ------------------------------
169 // Set the true path length of the primary << 171
170 // compatibility. << 172 // ----------------------------------------------------
171 [[deprecated("use ProposePrimaryTrackPathL << 173 // -- The creation of secondaries is Done in two steps:
172 void SetPrimaryTrackPathLength(G4double); << 174 // -- 1) Give the total number of secondaries
173 << 175 // -- that the FastStep returns
174 // Set the weight applied for event biasin << 176 // -- to the tracking using:
175 void ProposePrimaryTrackFinalEventBiasingW << 177 // -- SetNumberOfSecondaryTracks()
176 << 178 // --
177 // Set the weight applied for event biasin << 179 // -- 2) Invoke the CreateSecondaryTrack() method
178 [[deprecated("use ProposePrimaryTrackFinal << 180 // -- to create one secondary at each time.
179 void SetPrimaryTrackFinalEventBiasingWeigh << 181 // ----------------------------------------------------
180 << 182
181 // ------------------------------ << 183 // -- Total Number of secondaries to be created,
182 // -- Management of secondaries: << 184 // -- (to be called first)
183 // ------------------------------ << 185 void SetNumberOfSecondaryTracks(G4int);
184 << 186 // Set the total number of secondaries that will be created.
185 // --------------------------------------- << 187
186 // -- The creation of secondaries is Done << 188 // -- Number of secondaries effectively stored:
187 // -- 1) Give the total number of sec << 189 // -- (incremented at each CreateSecondaryTrack()
188 // -- that the FastStep returns << 190 // -- call)
189 // -- to the tracking using: << 191 G4int GetNumberOfSecondaryTracks();
190 // -- SetNumberOfSecondaryTracks() << 192 // Returns the number of secondaries effectively stored.
191 // -- << 193
192 // -- 2) Invoke the CreateSecondaryTr << 194 // -- Create a secondary: the arguments are:
193 // -- to create one secondary at e << 195 // -- * G4DynamicsParticle: see header file, many constructors exist
194 // --------------------------------------- << 196 // -- (allow to set particle type + energy +
195 << 197 // -- the normalized direction of momentum...)
196 // Set the total number of secondaries tha << 198 // -- * G4ThreeVector : Polarization (not in G4ParticleChange constructor)
197 // -- Total Number of secondaries to be cr << 199 // -- * G4ThreeVector : Position
198 // -- (to be called first) << 200 // -- * G4double : Time
199 void SetNumberOfSecondaryTracks(G4int); << 201 // -- * G4bool : says if Position/Momentum are given in the
200 << 202 // -- local coordinate system (true by default)
201 // Returns the number of secondaries effec << 203 // -- Returned value: pointer to the track created.
202 // -- Number of secondaries effectively st << 204 G4Track* CreateSecondaryTrack(const G4DynamicParticle&,
203 // -- (incremented at each CreateSecondary << 205 G4ThreeVector,
204 // -- call) << 206 G4ThreeVector,
205 G4int GetNumberOfSecondaryTracks(); << 207 G4double,
206 << 208 G4bool localCoordinates=true);
207 // -- Create a secondary: the arguments ar << 209 // Create a secondary. The arguments are:
208 // -- * G4DynamicsParticle: see header << 210 //
209 // -- (allow to << 211 // G4DynamicsParticle: see the G4DynamicsParticle reference, many constructors exist
210 // -- the normalized direction of momentum << 212 // (allow to set particle type + energy + the normalized direction of
211 // -- * G4ThreeVector : Polarizati << 213 // momentum...);
212 // -- * G4ThreeVector : Position << 214 // G4ThreeVector : Polarization;
213 // -- * G4double : Time << 215 // G4ThreeVector : Position;
214 // -- * G4bool : says if Po << 216 // G4double : Time;
215 // -- local coor << 217 // G4bool : says if Position/Momentum are given in the local envelope coordinate
216 // -- Returned value: pointer to the track << 218 // system (true by default).
217 G4Track* CreateSecondaryTrack(const G4Dyna << 219 //
218 G4bool local << 220 // Returned value: pointer to the track created.
219 << 221 //
220 //-- Create a secondary: the difference wi << 222
221 //-- is that the Polarization is not given << 223 //-- Create a secondary: the difference with he above declaration
222 //-- in the G4DynamicParticle. << 224 //-- is that the Polarization is not given and is assumed already set
223 //-- Returned value: pointer to the track << 225 //-- in the G4DynamicParticle.
224 G4Track* CreateSecondaryTrack(const G4Dyna << 226 //-- Returned value: pointer to the track created
225 G4bool local << 227 G4Track* CreateSecondaryTrack(const G4DynamicParticle&,
226 << 228 G4ThreeVector,
227 // Returns a pointer on the i-th secondary << 229 G4double,
228 G4Track* GetSecondaryTrack(G4int); << 230 G4bool localCoordinates=true);
229 << 231 // Create a secondary. The difference with he above declaration is that the Polarization is not
230 //---------------------------------------- << 232 // given and is assumed already set in the G4DynamicParticle.
231 // << 233 //
232 // Total energy deposit in the "fast Ste << 234 // Returned value: pointer to the track created
233 // (a default should be provided in futu << 235
234 // which can be: << 236
235 // delta energy of primary - << 237
236 // energy of the secondaries) << 238 G4Track* GetSecondaryTrack(G4int);
237 // This allow the user to Store a consis << 239 // Returns a pointer on the i-th secondary track created.
238 // information in the G4Trajectory. << 240
239 // << 241 //------------------------------------------------
240 //---------------------------------------- << 242 //
241 // Set the total energy deposited. << 243 // Total energy deposit in the "fast Step"
242 void ProposeTotalEnergyDeposited(G4double << 244 // (a default should be provided in future,
243 << 245 // which can be:
244 // Set the total energy deposited -- kept << 246 // delta energy of primary -
245 // It should be the delta energy of primar << 247 // energy of the secondaries)
246 [[deprecated("use ProposeTotalEnergyDeposi << 248 // This allow the user to Store a consistent
247 void SetTotalEnergyDeposited(G4double anEn << 249 // information in the G4Trajectory.
248 << 250 //
249 // Returns the total energy deposited. << 251 //------------------------------------------------
250 G4double GetTotalEnergyDeposited() const; << 252 void ProposeTotalEnergyDeposited(G4double anEnergyPart);
251 << 253 // Set the total energy deposited.
252 // Control of the stepping manager Hit inv << 254 void SetTotalEnergyDeposited(G4double anEnergyPart);
253 // << 255 // Set the total energy deposited -- kept for backward compatibility.
254 // In a usual parameterisation, the contro << 256 // It should be the delta energy of primary less the energy of the secondaries.
255 // responsability in his G4VFastSimulation << 257
256 // << 258 G4double GetTotalEnergyDeposited() const;
257 // However, in the particular case the G4F << 259 // Returns the total energy deposited.
258 // replacement only (ie replaces all the * << 260
259 // G4Step), the user can delegate to the G << 261 void ForceSteppingHitInvocation();
260 // the Hit()method of the current sensitiv << 262 // Control of the stepping manager Hit invocation.
261 // << 263 //
262 // By default, the G4SteppingManager is as << 264 // In a usual parameterisation, the control of the hits production is under the user
263 // parameterisation is invoked. << 265 // responsability in his G4VFastSimulationModel (he generally produces several hits at once.)
264 void ForceSteppingHitInvocation(); << 266 //
265 << 267 // However, in the particular case the G4FastSimulation user's model acts as the physics
266 // ======================================= << 268 // replacement only (ie replaces all the ***DoIt() and leads to the construction of a meaningful
267 // Stepping interface. << 269 // G4Step), the user can delegate to the G4SteppingManager the responsability to invoke
268 // ======================================= << 270 // the Hit()method of the current sensitive if any.
269 // --- the following methods are for updat << 271 //
270 // Return the pointer to the G4Step after << 272 // By default, the G4SteppingManager is asked to NOT invoke this Hit() method when parameterisation
271 // by using final state information of the << 273 // is invoked.
272 // << 274 //
273 // The Fast Simulation Mechanism doesn't c << 275
274 // state on the AlongDoIt loop, so the def << 276
275 // virtual G4Step* UpdateStepForAlongStep( << 277 public: // Without description
276 << 278 //=======================================================
277 G4Step* UpdateStepForAtRest(G4Step* Step) << 279 // Implementation section and kernel interfaces.
278 G4Step* UpdateStepForPostStep(G4Step* Step << 280 //=======================================================
279 << 281 //------------------------
280 // A Model gives the final state of the pa << 282 // Constructor/Destructor
281 // based on information of G4FastTrack. So << 283 //------------------------
282 // Initialize method is an interface to th << 284 G4FastStep();
283 // G4FastSimulationManager to Initialize t << 285 virtual ~G4FastStep();
284 // G4FastStep. << 286
285 << 287 // equal/unequal operator
286 void Initialize(const G4FastTrack&); << 288 G4bool operator==(const G4FastStep &right) const;
287 << 289 G4bool operator!=(const G4FastStep &right) const;
288 // for Debug << 290
289 void DumpInfo() const override; << 291 protected:
290 G4bool CheckIt(const G4Track&) override; << 292 // hide copy constructor and assignment operator as protected
291 << 293 G4FastStep (const G4FastStep &right);
292 private: << 294 G4FastStep & operator= (const G4FastStep &right);
293 //======================================== << 295
294 // Private Internal methods (implementatio << 296 public:
295 //======================================== << 297 // ===============================================
296 << 298 // Stepping interface.
297 // G4FastStep should never be Initialized << 299 // ===============================================
298 // but we must define it to avoid compiler << 300 // --- the following methods are for updating G4Step -----
299 void Initialize(const G4Track&) override; << 301 // Return the pointer to the G4Step after updating the Step information
300 << 302 // by using final state information of the track given by a Model.
301 // -- Utility functions -- << 303 //
302 //--- methods to keep information of the f << 304 // The Fast Simulation Mechanism doesn't change the track's final
303 // IMPORTANT NOTE: Although the name of t << 305 // state on the AlongDoIt loop, so the default one all we need.
304 // "Change", what it stores (and returns << 306 //virtual G4Step* UpdateStepForAlongStep(G4Step* Step);
305 // values of the Position, the normalize << 307
306 // etc. << 308 G4Step* UpdateStepForAtRest(G4Step* Step);
307 << 309 G4Step* UpdateStepForPostStep(G4Step* Step);
308 // Set theMomentumChange vector: it is the << 310
309 // direction. << 311 // A Model gives the final state of the particle
310 void SetMomentumChange(G4double Px, G4doub << 312 // based on information of G4FastTrack. So the
311 void SetMomentumChange(const G4ThreeVector << 313 // Initialize method is an interface to the
312 << 314 // G4FastSimulationManager to Initialize the
313 //======================================== << 315 // G4FastStep.
314 // Data members. << 316
315 //======================================== << 317 void Initialize(const G4FastTrack&);
316 // theMomentumChange is the vector contai << 318
317 // direction after the invoked process. T << 319 private:
318 // of the momentum direction of the parti << 320 //===================================================
319 // The responsibility to apply the change << 321 // Private Internal methods (implementation).
320 // which invoked the process. << 322 //===================================================
321 G4ParticleMomentum theMomentumChange; << 323
322 << 324 // G4FastStep should never be Initialized in this way
323 // The changed (final) polarization of a << 325 // but we must define it to avoid compiler warnings.
324 G4ThreeVector thePolarizationChange; << 326 void Initialize(const G4Track&);
325 << 327
326 // The final kinetic energy of the curren << 328 // -- Utility functions --
327 G4double theEnergyChange = 0.0; << 329 //--- methods to keep information of the final state--
328 << 330 // IMPORTANT NOTE: Although the name of the class and methods are
329 // The changed (final) position of a give << 331 // "Change", what it stores (and returns in get) are the "FINAL"
330 G4ThreeVector thePositionChange; << 332 // values of the Position, the normalized direction of Momentum,
331 << 333 // etc.
332 // The changed (final) global time of a g << 334
333 G4double theTimeChange = 0.0; << 335 // Set theMomentumChange vector: it is the final unitary momentum
334 << 336 // direction.
335 // The changed (final) proper time of a g << 337 void SetMomentumChange(G4double Px, G4double Py, G4double Pz);
336 G4double theProperTimeChange = 0.0; << 338 void SetMomentumChange(const G4ThreeVector& Pfinal);
337 << 339
338 // The reference G4FastTrack << 340 //=====================================================
339 const G4FastTrack* fFastTrack = nullptr; << 341 // Data members.
340 << 342 //=====================================================
341 // weight for event biasing mechanism: << 343 // theMomentumChange is the vector containing the final momentum
342 G4double theWeightChange = 0.0; << 344 // direction after the invoked process. The application of the change
>> 345 // of the momentum direction of the particle is not Done here.
>> 346 // The responsibility to apply the change is up the entity
>> 347 // which invoked the process.
>> 348 G4ParticleMomentum theMomentumChange;
>> 349
>> 350 // The changed (final) polarization of a given particle.
>> 351 G4ThreeVector thePolarizationChange;
>> 352
>> 353 // The final kinetic energy of the current particle.
>> 354 G4double theEnergyChange;
>> 355
>> 356 // The changed (final) position of a given particle.
>> 357 G4ThreeVector thePositionChange;
>> 358
>> 359 // The changed (final) global time of a given particle.
>> 360 G4double theTimeChange;
>> 361
>> 362 // The changed (final) proper time of a given particle.
>> 363 G4double theProperTimeChange;
>> 364
>> 365 // The reference G4FastTrack
>> 366 const G4FastTrack* fFastTrack;
>> 367
>> 368 // weight for event biasing mechanism:
>> 369 G4double theWeightChange;
>> 370
>> 371
>> 372 public:
>> 373 // for Debug
>> 374 void DumpInfo() const;
>> 375 G4bool CheckIt(const G4Track&);
343 }; 376 };
344 377
345 //******************************************** 378 //*******************************************************************
346 // 379 //
347 // Inline functions 380 // Inline functions
348 // 381 //
349 //******************************************** 382 //*******************************************************************
350 383
351 #include "G4FastStep.icc" 384 #include "G4FastStep.icc"
352 385
353 #endif 386 #endif
354 387