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0b359ada | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
88cb7938 | 16 | /* $Id$ */ |
17 | ||
0b359ada | 18 | // |
19 | // Container class for AliGenerator and AfterBurners | |
20 | // (which are AliGenerators as well) through recursion. | |
21 | // The container is itself an AliGenerator a | |
22 | // what is stored are not the pointers to the generators directly | |
23 | // but to objects of type | |
24 | // AliGenCocktailAfterBurner entry. | |
25 | // The class provides also iterator functionality. | |
26 | // Author: andreas.morsch@cern.ch and piotr.skowronski@cern.ch | |
27 | // | |
2b9786f4 | 28 | // 24.09.2001 Piotr Skowronski |
29 | // debug -> gDebug, | |
124253ee | 30 | // fNEvents replaced with AliRunLoader::GetNumberOfEvents() |
2b9786f4 | 31 | // |
2b9786f4 | 32 | |
88cb7938 | 33 | |
34 | #include <Riostream.h> | |
35 | ||
0b359ada | 36 | #include <TList.h> |
88cb7938 | 37 | #include <TObjArray.h> |
0b359ada | 38 | #include <TParticle.h> |
88cb7938 | 39 | |
40 | #include "AliGenCocktailAfterBurner.h" | |
41 | #include "AliGenCocktailEntry.h" | |
baf77725 | 42 | #include "AliGenCocktailEventHeader.h" |
cc41459d | 43 | #include "AliCollisionGeometry.h" |
88cb7938 | 44 | #include "AliStack.h" |
5d12ce38 | 45 | #include "AliMC.h" |
4a33c50d | 46 | #include "AliRun.h" |
0b359ada | 47 | |
2b9786f4 | 48 | |
0b359ada | 49 | ClassImp(AliGenCocktailAfterBurner) |
2b9786f4 | 50 | /*********************************************************************/ |
51 | /*********************************************************************/ | |
0b359ada | 52 | |
1c56e311 | 53 | AliGenCocktailAfterBurner::AliGenCocktailAfterBurner(): |
54 | fNAfterBurners(0), | |
4a33c50d | 55 | fAfterBurnerEntries(0), |
1c56e311 | 56 | fGenerationDone(kFALSE), |
57 | fInternalStacks(0), | |
58 | fCollisionGeometries(0), | |
9c64a93a | 59 | fHeaders(0), |
1c56e311 | 60 | fCurrentEvent(0), |
61 | fActiveStack(0), | |
62 | fActiveEvent(-1), | |
63 | fCurrentGenerator(0), | |
64 | fNBgEvents(0) | |
0b359ada | 65 | { |
66 | // Constructor | |
2b9786f4 | 67 | if (gDebug > 0) |
1c56e311 | 68 | cout<<"AliGenCocktailAfterBurner::AliGenCocktailAfterBurner()"<<endl; |
0b359ada | 69 | SetName("AliGenCocktailAfterBurner"); |
70 | SetTitle("AliGenCocktailAfterBurner"); | |
0b359ada | 71 | } |
20dddfab | 72 | |
2b9786f4 | 73 | /*********************************************************************/ |
0b359ada | 74 | |
75 | AliGenCocktailAfterBurner::~AliGenCocktailAfterBurner() | |
76 | { | |
2b9786f4 | 77 | //destructor |
78 | ||
79 | if (fInternalStacks) //delete stacks | |
80 | { | |
81 | fInternalStacks->SetOwner(); | |
82 | delete fInternalStacks; | |
83 | } | |
84 | if (fAfterBurnerEntries) delete fAfterBurnerEntries; //delete entries | |
6bcdf1d1 | 85 | Int_t numberOfEvents = AliRunLoader::Instance()->GetNumberOfEventsPerRun(); |
86 | if (fCollisionGeometries) { | |
87 | for (Int_t i = 0; i < (numberOfEvents + fNBgEvents); i++) | |
88 | if (fCollisionGeometries[i]) delete fCollisionGeometries[i]; | |
89 | delete[] fCollisionGeometries; | |
90 | } | |
91 | if (fHeaders) { | |
92 | for (Int_t i = 0; i < (numberOfEvents + fNBgEvents); i++) | |
93 | if (fHeaders[i]) delete fHeaders[i]; | |
94 | delete[] fHeaders; | |
95 | } | |
0b359ada | 96 | } |
2b9786f4 | 97 | /*********************************************************************/ |
98 | /*********************************************************************/ | |
0b359ada | 99 | |
100 | void AliGenCocktailAfterBurner:: | |
101 | AddAfterBurner(AliGenerator *AfterBurner, char* Name, Float_t RateExp) | |
102 | { | |
103 | // | |
104 | // Forward parameters to the new AfterBurner | |
105 | ||
2b9786f4 | 106 | if (gDebug>0)cout<<"AliGenCocktailAfterBurner::AddAfterBurner Named "<<Name<<endl; |
0b359ada | 107 | |
565cc9c0 | 108 | if(TestBit(kPtRange) && !(AfterBurner->TestBit(kPtRange)) && !(AfterBurner->TestBit(kMomentumRange))) |
0b359ada | 109 | AfterBurner->SetPtRange(fPtMin,fPtMax); |
565cc9c0 | 110 | if(TestBit(kMomentumRange) && !(AfterBurner->TestBit(kPtRange)) && !(AfterBurner->TestBit(kMomentumRange))) |
0b359ada | 111 | AfterBurner->SetMomentumRange(fPMin,fPMax); |
112 | ||
565cc9c0 | 113 | if (TestBit(kYRange) && !(AfterBurner->TestBit(kYRange))) |
114 | AfterBurner->SetYRange(fYMin,fYMax); | |
115 | if (TestBit(kPhiRange) && !(AfterBurner->TestBit(kPhiRange))) | |
116 | AfterBurner->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi()); | |
117 | if (TestBit(kThetaRange) && !(AfterBurner->TestBit(kThetaRange)) && !(AfterBurner->TestBit(kEtaRange))) | |
118 | AfterBurner->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi()); | |
fd2aa4bf | 119 | if (!(AfterBurner->TestBit(kVertexRange))) { |
565cc9c0 | 120 | AfterBurner->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]); |
121 | AfterBurner->SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]); | |
122 | AfterBurner->SetVertexSmear(fVertexSmear); | |
123 | AfterBurner->SetVertexSource(kContainer); | |
21391258 | 124 | AfterBurner->SetTimeOrigin(fTimeOrigin); |
565cc9c0 | 125 | } |
126 | AfterBurner->SetTrackingFlag(fTrackIt); | |
127 | //AfterBurner->SetContainer(this); | |
128 | ||
0b359ada | 129 | // |
130 | // Add AfterBurner to list | |
131 | ||
132 | AliGenCocktailEntry *entry = | |
133 | new AliGenCocktailEntry(AfterBurner, Name, RateExp); | |
4a33c50d | 134 | if (!fAfterBurnerEntries) fAfterBurnerEntries = new TList(); |
135 | ||
0b359ada | 136 | fAfterBurnerEntries->Add(entry); |
137 | fNAfterBurners++; | |
984c69bd | 138 | // |
984c69bd | 139 | |
0b359ada | 140 | } |
2b9786f4 | 141 | /*********************************************************************/ |
142 | /*********************************************************************/ | |
0b359ada | 143 | |
144 | void AliGenCocktailAfterBurner::Init() | |
145 | { | |
146 | // Initialisation | |
6bcdf1d1 | 147 | Int_t numberOfEvents = AliRunLoader::Instance()->GetNumberOfEventsPerRun(); |
2b9786f4 | 148 | fGenerationDone = kFALSE; |
466bfded | 149 | if (fInternalStacks) //delete stacks |
150 | { | |
151 | fInternalStacks->SetOwner(); | |
152 | fInternalStacks->Delete(); //clean after previous generation cycle | |
153 | } | |
154 | ||
6bcdf1d1 | 155 | if (fCollisionGeometries) { |
156 | for (Int_t i = 0; i < (numberOfEvents + fNBgEvents); i++) | |
157 | if (fCollisionGeometries[i]) delete fCollisionGeometries[i]; | |
158 | delete[] fCollisionGeometries; | |
159 | } | |
160 | if (fHeaders) { | |
161 | for (Int_t i = 0; i < (numberOfEvents + fNBgEvents); i++) | |
162 | if (fHeaders[i]) delete fHeaders[i]; | |
163 | delete[] fHeaders; | |
164 | } | |
165 | ||
0b359ada | 166 | this->AliGenCocktail::Init(); |
167 | ||
2b9786f4 | 168 | if (gDebug>0) cout<<"AliGenCocktailAfterBurner::Init"<<endl; |
0b359ada | 169 | TIter next(fAfterBurnerEntries); |
170 | AliGenCocktailEntry *entry; | |
171 | // | |
172 | // Loop over generators and initialize | |
173 | while((entry = (AliGenCocktailEntry*)next())) { | |
174 | entry->Generator()->Init(); | |
175 | } | |
176 | } | |
2b9786f4 | 177 | /*********************************************************************/ |
178 | /*********************************************************************/ | |
0b359ada | 179 | |
180 | void AliGenCocktailAfterBurner::Generate() | |
181 | { | |
182 | // | |
2b9786f4 | 183 | // Generate event |
184 | // Firsts runs each generator for all events | |
185 | // than after burners ones for each event | |
186 | // | |
187 | // It generates and processes all events during | |
188 | // first call only. | |
189 | // In next calls it just returns already generated | |
190 | // and processed events to the gAlice | |
191 | ||
192 | if (gDebug>0) | |
193 | cout<<"#####################################"<<endl | |
194 | <<"#AliGenCocktailAfterBurner::Generate#"<<endl | |
195 | <<"#####################################"<<endl; | |
baf77725 | 196 | // Initialize header |
baf77725 | 197 | // |
0b359ada | 198 | Int_t i; //iterator |
199 | AliStack * stack; | |
2b9786f4 | 200 | |
0b359ada | 201 | if (fGenerationDone) |
2b9786f4 | 202 | {//if generation is done (in first call) |
203 | //just copy particles from the stack to the gAlice | |
204 | SetTracks(++fCurrentEvent); | |
9c64a93a | 205 | fHeader = fHeaders[fCurrentEvent]; |
206 | gAlice->SetGenEventHeader(fHeader); | |
207 | cout<<"Returning event " << fCurrentEvent<<endl; | |
2b9786f4 | 208 | return; |
0b359ada | 209 | } |
210 | else | |
2b9786f4 | 211 | { //Here we are in the first call of the method |
9c64a93a | 212 | Int_t numberOfEvents = AliRunLoader::Instance()->GetNumberOfEventsPerRun(); |
213 | cout << "Number of events per run" << numberOfEvents << endl; | |
214 | TArrayF eventVertex; | |
215 | eventVertex.Set(3 * (numberOfEvents + fNBgEvents)); | |
21391258 | 216 | TArrayF eventTime; |
217 | eventTime.Set(numberOfEvents + fNBgEvents); | |
9c64a93a | 218 | fCurrentEvent=0; |
2b9786f4 | 219 | //Create stacks |
9c64a93a | 220 | fInternalStacks = new TObjArray(numberOfEvents + fNBgEvents); //Create array of internal stacks |
221 | fCollisionGeometries = new AliCollisionGeometry*[numberOfEvents + fNBgEvents]; //Create array of collision geometries | |
222 | fHeaders = new AliGenCocktailEventHeader*[numberOfEvents + fNBgEvents]; //Create array of headers | |
223 | ||
224 | for(i = 0; i < numberOfEvents + fNBgEvents; i++) | |
2b9786f4 | 225 | { |
9c64a93a | 226 | stack = new AliStack(10000); |
227 | stack->Reset(); | |
228 | fInternalStacks->Add(stack); | |
229 | Vertex(); | |
230 | for (Int_t j = 0; j < 3; j++) eventVertex[3 * i + j] = fVertex[j]; | |
21391258 | 231 | eventTime[i] = fTime; |
0709d8b9 | 232 | fHeaders[i] = new AliGenCocktailEventHeader(); |
ace4fb76 | 233 | fCollisionGeometries[i] = 0; |
2b9786f4 | 234 | } |
0b359ada | 235 | /*********************************************************************/ |
2b9786f4 | 236 | TIter next(fEntries); |
237 | AliGenCocktailEntry *entry; | |
238 | AliGenCocktailEntry *e1; | |
239 | AliGenCocktailEntry *e2; | |
d94af0c1 | 240 | const TObjArray *partArray; |
2b9786f4 | 241 | // |
242 | // Loop over generators and generate events | |
243 | Int_t igen=0; | |
244 | while((entry = (AliGenCocktailEntry*)next())) | |
245 | { | |
246 | igen++; | |
247 | cout<<"Generator "<<igen<<" : "<<entry->GetName()<<endl; | |
248 | /***********************************************/ | |
0b359ada | 249 | //First generator for all evenets, than second for all events, etc... |
9c64a93a | 250 | for(i = 0; i < numberOfEvents + fNBgEvents; i++) |
59fe7b77 | 251 | { |
252 | cout<<" EVENT "<<i << endl; | |
2b9786f4 | 253 | stack = GetStack(i); |
254 | partArray = stack->Particles(); | |
255 | fCurrentGenerator = entry->Generator(); | |
256 | fCurrentGenerator->SetStack(stack); | |
257 | if (igen ==1) | |
59fe7b77 | 258 | { |
2b9786f4 | 259 | entry->SetFirst(0); |
59fe7b77 | 260 | } |
2b9786f4 | 261 | else |
59fe7b77 | 262 | { |
2b9786f4 | 263 | entry->SetFirst((partArray->GetEntriesFast())+1); |
59fe7b77 | 264 | } |
9c64a93a | 265 | // Set the vertex for the generator |
266 | Int_t ioff = 3 * i; | |
267 | fCurrentGenerator->SetVertex(eventVertex.At(ioff), eventVertex.At(ioff + 1), eventVertex.At(ioff + 2)); | |
21391258 | 268 | fCurrentGenerator->SetTime(eventTime.At(i)); |
9c64a93a | 269 | fHeader = fHeaders[i]; |
21391258 | 270 | // Set the vertex and time for the cocktail |
9c64a93a | 271 | TArrayF v(3); |
272 | for (Int_t j=0; j<3; j++) v[j] = eventVertex.At(ioff + j); | |
273 | fHeader->SetPrimaryVertex(v); | |
21391258 | 274 | fHeader->SetInteractionTime(eventTime.At(i)); |
9c64a93a | 275 | // Generate event |
59fe7b77 | 276 | fCurrentGenerator->Generate(); |
9c64a93a | 277 | // |
59fe7b77 | 278 | entry->SetLast(partArray->GetEntriesFast()); |
279 | ||
2f3fd0f1 | 280 | if (fCurrentGenerator->ProvidesCollisionGeometry()) |
281 | fCollisionGeometries[i] = | |
282 | new AliCollisionGeometry(*(fCurrentGenerator->CollisionGeometry())); | |
9c64a93a | 283 | } // event loop |
2b9786f4 | 284 | /***********************************************/ |
9c64a93a | 285 | } // generator loop |
2b9786f4 | 286 | next.Reset(); |
287 | while((entry = (AliGenCocktailEntry*)next())) | |
288 | { | |
289 | entry->PrintInfo(); | |
290 | } | |
291 | for ( entry=FirstGenerator();entry;entry=NextGenerator() ) | |
292 | { | |
293 | entry->PrintInfo(); | |
294 | } | |
295 | for (FirstGeneratorPair(e1,e2); (e1&&e2); NextGeneratorPair(e1,e2) ) | |
296 | { | |
297 | printf("\n -----------------------------"); | |
298 | e1->PrintInfo(); | |
299 | e2->PrintInfo(); | |
0b359ada | 300 | } |
301 | ||
0b359ada | 302 | |
2b9786f4 | 303 | /***********************************************/ |
304 | /*******After Burners Processing****************/ | |
305 | /***********************************************/ | |
306 | TIter nextAfterBurner(fAfterBurnerEntries); | |
307 | AliGenCocktailEntry *afterBurnerEntry; | |
308 | Int_t iab =0; //number of current after burner / counter | |
309 | ||
310 | cout<<"\n\nRunning After Burners"<<endl; | |
311 | while((afterBurnerEntry = (AliGenCocktailEntry*)nextAfterBurner())) | |
312 | { | |
313 | cout<<"After Burner "<<iab++<<" :"<<afterBurnerEntry->GetName()<<endl; | |
314 | fCurrentGenerator = afterBurnerEntry->Generator(); | |
315 | fCurrentGenerator->Generate(); | |
316 | } | |
317 | cout<<endl<<"Finished. Processed "<<iab<<" After Burners"<<endl; | |
318 | ||
319 | /***********************************************/ | |
320 | /***********************************************/ | |
321 | /***********************************************/ | |
0b359ada | 322 | |
2b9786f4 | 323 | fGenerationDone=kTRUE; |
324 | SetTracks(0); //copy event 0 to gAlice stack | |
0b359ada | 325 | |
326 | /*********************************************************************/ | |
baf77725 | 327 | // Pass the header to gAlice |
9c64a93a | 328 | fHeader = fHeaders[0]; |
baf77725 | 329 | gAlice->SetGenEventHeader(fHeader); |
9c64a93a | 330 | } //else generated |
0b359ada | 331 | } |
2b9786f4 | 332 | /*********************************************************************/ |
333 | /*********************************************************************/ | |
0b359ada | 334 | |
20dddfab | 335 | AliStack* AliGenCocktailAfterBurner::GetStack(Int_t n) const |
0b359ada | 336 | { |
2b9786f4 | 337 | //Returns the pointer to the N'th stack (event) |
c516e34c | 338 | if( ( n<0 ) || ( n >= (GetNumberOfEvents()) ) ) |
0b359ada | 339 | { |
2b9786f4 | 340 | Fatal("AliGenCocktailAfterBurner::GetStack","Asked for non existing stack (%d)",n); |
341 | return 0; | |
0b359ada | 342 | } |
2682e810 | 343 | return ((AliStack*) fInternalStacks->At(n) ); |
0b359ada | 344 | } |
cc41459d | 345 | |
346 | /*********************************************************************/ | |
347 | /*********************************************************************/ | |
348 | ||
cc41459d | 349 | AliCollisionGeometry* AliGenCocktailAfterBurner::GetCollisionGeometry(Int_t n) const |
350 | { | |
351 | //Returns the pointer to the N'th stack (event) | |
352 | if( ( n<0 ) || ( n>=GetNumberOfEvents() ) ) | |
353 | { | |
354 | Fatal("AliGenCocktailAfterBurner::GetCollisionGeometry","Asked for non existing stack (%d)",n); | |
355 | return 0; | |
356 | } | |
357 | return fCollisionGeometries[n]; | |
358 | } | |
359 | ||
2b9786f4 | 360 | /*********************************************************************/ |
361 | /*********************************************************************/ | |
0b359ada | 362 | |
363 | void AliGenCocktailAfterBurner::SetActiveEventNumber(Int_t actev) | |
364 | { | |
2b9786f4 | 365 | //Set Active Events Number and Active Stack |
366 | //There is only one active event number | |
367 | //Made fo convinience of work with AfterBurners (HBT processor) | |
368 | ||
0b359ada | 369 | fActiveEvent = actev; |
370 | fActiveStack = GetStack(actev); | |
371 | } | |
2b9786f4 | 372 | /*********************************************************************/ |
373 | /*********************************************************************/ | |
0b359ada | 374 | |
375 | void AliGenCocktailAfterBurner::SetTracks(Int_t stackno) | |
376 | { | |
2b9786f4 | 377 | //Method which copies tracks from given stack to the |
378 | //gAlice's stack | |
0b359ada | 379 | AliStack* instack = GetStack(stackno); |
380 | Int_t done; | |
381 | Int_t parent; | |
382 | Int_t pdg; | |
383 | Double_t px, py, pz, e, vx, vy, vz, tof, polx, poly, polz; | |
acc86a24 | 384 | TMCProcess mech; |
0b359ada | 385 | Int_t ntr; |
386 | Float_t weight; | |
387 | TVector3 pol; | |
388 | ||
389 | TParticle * p; | |
20dddfab | 390 | Int_t n = instack->GetNtrack(); |
2b9786f4 | 391 | if (gDebug) |
0b359ada | 392 | { |
20dddfab | 393 | cout<<"AliGenCocktailAfterBurner::SetTracks("<<stackno<<"). Number of particles is: "<<n<<"\n"; |
0b359ada | 394 | } |
395 | ||
20dddfab | 396 | for(Int_t i = 0; i < n; i++) |
0b359ada | 397 | { |
398 | ||
2b9786f4 | 399 | p = instack->Particle(i); |
400 | done = !p->TestBit(kDoneBit); | |
401 | parent = p->GetMother(0); | |
402 | pdg = p->GetPdgCode(); | |
403 | px = p->Px(); | |
404 | py = p->Py(); | |
405 | pz = p->Pz(); | |
406 | e = p->Energy(); | |
407 | vx = p->Vx(); | |
408 | vy = p->Vy(); | |
409 | vz = p->Vz(); | |
410 | tof = p->T(); | |
411 | p->GetPolarisation(pol); | |
412 | polx = pol.X(); | |
413 | poly = pol.Y(); | |
414 | polz = pol.Z(); | |
415 | mech = AliGenCocktailAfterBurner::IntToMCProcess(p->GetUniqueID()); | |
416 | weight = p->GetWeight(); | |
417 | ||
cc41459d | 418 | gAlice->GetMCApp()->PushTrack(done, parent, pdg, px, py, pz, e, vx, vy, vz, tof,polx, poly, polz, mech, ntr, weight); |
419 | ||
cc41459d | 420 | SetHighWaterMark(ntr) ; |
cc41459d | 421 | |
0b359ada | 422 | } |
423 | } | |
2b9786f4 | 424 | /*********************************************************************/ |
425 | /*********************************************************************/ | |
0b359ada | 426 | |
acc86a24 | 427 | TMCProcess AliGenCocktailAfterBurner::IntToMCProcess(Int_t no) |
0b359ada | 428 | { |
acc86a24 | 429 | //Mothod used to convert uniqueID (integer) to TMCProcess type |
430 | const TMCProcess kMCprocesses[kMaxMCProcess] = | |
2b9786f4 | 431 | { |
432 | kPNoProcess, kPMultipleScattering, kPEnergyLoss, kPMagneticFieldL, | |
0b359ada | 433 | kPDecay, kPPair, kPCompton, kPPhotoelectric, kPBrem, kPDeltaRay, |
434 | kPAnnihilation, kPHadronic, kPNoProcess, kPEvaporation, kPNuclearFission, | |
435 | kPNuclearAbsorption, kPPbarAnnihilation, kPNCapture, kPHElastic, | |
436 | kPHInhelastic, kPMuonNuclear, kPTOFlimit,kPPhotoFission, kPNoProcess, | |
2b9786f4 | 437 | kPRayleigh, kPNoProcess, kPNoProcess, kPNoProcess, kPNull, kPStop |
438 | }; | |
0b359ada | 439 | |
440 | for (Int_t i = 0;i<kMaxMCProcess;i++) | |
441 | { | |
20dddfab | 442 | if (kMCprocesses[i] == no) |
2b9786f4 | 443 | { |
20dddfab | 444 | return kMCprocesses[i]; |
2b9786f4 | 445 | } |
0b359ada | 446 | } |
447 | return kPNoProcess; | |
448 | } | |
198bb1c7 | 449 |