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