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