]>
Commit | Line | Data |
---|---|---|
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 | ||
16 | /* $Id$ */ | |
17 | ||
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 | // | |
28 | // 24.09.2001 Piotr Skowronski | |
29 | // debug -> gDebug, | |
30 | // fNEvents replaced with AliRunLoader::GetNumberOfEvents() | |
31 | // | |
32 | ||
33 | ||
34 | #include <Riostream.h> | |
35 | ||
36 | #include <TList.h> | |
37 | #include <TObjArray.h> | |
38 | #include <TParticle.h> | |
39 | ||
40 | #include "AliGenCocktailAfterBurner.h" | |
41 | #include "AliGenCocktailEntry.h" | |
42 | #include "AliGenCocktailEventHeader.h" | |
43 | #include "AliCollisionGeometry.h" | |
44 | #include "AliStack.h" | |
45 | #include "AliMC.h" | |
46 | #include "AliRun.h" | |
47 | ||
48 | using std::cout; | |
49 | using std::endl; | |
50 | ClassImp(AliGenCocktailAfterBurner) | |
51 | /*********************************************************************/ | |
52 | /*********************************************************************/ | |
53 | ||
54 | AliGenCocktailAfterBurner::AliGenCocktailAfterBurner(): | |
55 | fNAfterBurners(0), | |
56 | fAfterBurnerEntries(0), | |
57 | fGenerationDone(kFALSE), | |
58 | fInternalStacks(0), | |
59 | fCollisionGeometries(0), | |
60 | fHeaders(0), | |
61 | fCurrentEvent(0), | |
62 | fActiveStack(0), | |
63 | fActiveEvent(-1), | |
64 | fCurrentGenerator(0), | |
65 | fNBgEvents(0) | |
66 | { | |
67 | // Constructor | |
68 | if (gDebug > 0) | |
69 | cout<<"AliGenCocktailAfterBurner::AliGenCocktailAfterBurner()"<<endl; | |
70 | SetName("AliGenCocktailAfterBurner"); | |
71 | SetTitle("AliGenCocktailAfterBurner"); | |
72 | } | |
73 | ||
74 | /*********************************************************************/ | |
75 | ||
76 | AliGenCocktailAfterBurner::~AliGenCocktailAfterBurner() | |
77 | { | |
78 | //destructor | |
79 | ||
80 | if (fInternalStacks) //delete stacks | |
81 | { | |
82 | fInternalStacks->SetOwner(); | |
83 | delete fInternalStacks; | |
84 | } | |
85 | if (fAfterBurnerEntries) delete fAfterBurnerEntries; //delete entries | |
86 | Int_t numberOfEvents = AliRunLoader::Instance()->GetNumberOfEventsPerRun(); | |
87 | if (fCollisionGeometries) { | |
88 | for (Int_t i = 0; i < (numberOfEvents + fNBgEvents); i++) | |
89 | if (fCollisionGeometries[i]) delete fCollisionGeometries[i]; | |
90 | delete[] fCollisionGeometries; | |
91 | } | |
92 | if (fHeaders) { | |
93 | for (Int_t i = 0; i < (numberOfEvents + fNBgEvents); i++) | |
94 | if (fHeaders[i]) delete fHeaders[i]; | |
95 | delete[] fHeaders; | |
96 | } | |
97 | } | |
98 | /*********************************************************************/ | |
99 | /*********************************************************************/ | |
100 | ||
101 | void AliGenCocktailAfterBurner:: | |
102 | AddAfterBurner(AliGenerator *AfterBurner, char* Name, Float_t RateExp) | |
103 | { | |
104 | // | |
105 | // Forward parameters to the new AfterBurner | |
106 | ||
107 | if (gDebug>0)cout<<"AliGenCocktailAfterBurner::AddAfterBurner Named "<<Name<<endl; | |
108 | ||
109 | if(TestBit(kPtRange) && !(AfterBurner->TestBit(kPtRange)) && !(AfterBurner->TestBit(kMomentumRange))) | |
110 | AfterBurner->SetPtRange(fPtMin,fPtMax); | |
111 | if(TestBit(kMomentumRange) && !(AfterBurner->TestBit(kPtRange)) && !(AfterBurner->TestBit(kMomentumRange))) | |
112 | AfterBurner->SetMomentumRange(fPMin,fPMax); | |
113 | ||
114 | if (TestBit(kYRange) && !(AfterBurner->TestBit(kYRange))) | |
115 | AfterBurner->SetYRange(fYMin,fYMax); | |
116 | if (TestBit(kPhiRange) && !(AfterBurner->TestBit(kPhiRange))) | |
117 | AfterBurner->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi()); | |
118 | if (TestBit(kThetaRange) && !(AfterBurner->TestBit(kThetaRange)) && !(AfterBurner->TestBit(kEtaRange))) | |
119 | AfterBurner->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi()); | |
120 | if (!(AfterBurner->TestBit(kVertexRange))) { | |
121 | AfterBurner->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]); | |
122 | AfterBurner->SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]); | |
123 | AfterBurner->SetVertexSmear(fVertexSmear); | |
124 | AfterBurner->SetVertexSource(kContainer); | |
125 | AfterBurner->SetTimeOrigin(fTimeOrigin); | |
126 | } | |
127 | AfterBurner->SetTrackingFlag(fTrackIt); | |
128 | //AfterBurner->SetContainer(this); | |
129 | ||
130 | // | |
131 | // Add AfterBurner to list | |
132 | ||
133 | AliGenCocktailEntry *entry = | |
134 | new AliGenCocktailEntry(AfterBurner, Name, RateExp); | |
135 | if (!fAfterBurnerEntries) fAfterBurnerEntries = new TList(); | |
136 | ||
137 | fAfterBurnerEntries->Add(entry); | |
138 | fNAfterBurners++; | |
139 | // | |
140 | ||
141 | } | |
142 | /*********************************************************************/ | |
143 | /*********************************************************************/ | |
144 | ||
145 | void AliGenCocktailAfterBurner::Init() | |
146 | { | |
147 | // Initialisation | |
148 | Int_t numberOfEvents = AliRunLoader::Instance()->GetNumberOfEventsPerRun(); | |
149 | fGenerationDone = kFALSE; | |
150 | if (fInternalStacks) //delete stacks | |
151 | { | |
152 | fInternalStacks->SetOwner(); | |
153 | fInternalStacks->Delete(); //clean after previous generation cycle | |
154 | } | |
155 | ||
156 | if (fCollisionGeometries) { | |
157 | for (Int_t i = 0; i < (numberOfEvents + fNBgEvents); i++) | |
158 | if (fCollisionGeometries[i]) delete fCollisionGeometries[i]; | |
159 | delete[] fCollisionGeometries; | |
160 | } | |
161 | if (fHeaders) { | |
162 | for (Int_t i = 0; i < (numberOfEvents + fNBgEvents); i++) | |
163 | if (fHeaders[i]) delete fHeaders[i]; | |
164 | delete[] fHeaders; | |
165 | } | |
166 | ||
167 | this->AliGenCocktail::Init(); | |
168 | ||
169 | if (gDebug>0) cout<<"AliGenCocktailAfterBurner::Init"<<endl; | |
170 | TIter next(fAfterBurnerEntries); | |
171 | AliGenCocktailEntry *entry; | |
172 | // | |
173 | // Loop over generators and initialize | |
174 | while((entry = (AliGenCocktailEntry*)next())) { | |
175 | entry->Generator()->Init(); | |
176 | } | |
177 | } | |
178 | /*********************************************************************/ | |
179 | /*********************************************************************/ | |
180 | ||
181 | void AliGenCocktailAfterBurner::Generate() | |
182 | { | |
183 | // | |
184 | // Generate event | |
185 | // Firsts runs each generator for all events | |
186 | // than after burners ones for each event | |
187 | // | |
188 | // It generates and processes all events during | |
189 | // first call only. | |
190 | // In next calls it just returns already generated | |
191 | // and processed events to the gAlice | |
192 | ||
193 | if (gDebug>0) | |
194 | cout<<"#####################################"<<endl | |
195 | <<"#AliGenCocktailAfterBurner::Generate#"<<endl | |
196 | <<"#####################################"<<endl; | |
197 | // Initialize header | |
198 | // | |
199 | Int_t i; //iterator | |
200 | AliStack * stack; | |
201 | ||
202 | if (fGenerationDone) | |
203 | {//if generation is done (in first call) | |
204 | //just copy particles from the stack to the gAlice | |
205 | SetTracks(++fCurrentEvent); | |
206 | fHeader = fHeaders[fCurrentEvent]; | |
207 | gAlice->SetGenEventHeader(fHeader); | |
208 | cout<<"Returning event " << fCurrentEvent<<endl; | |
209 | return; | |
210 | } | |
211 | else | |
212 | { //Here we are in the first call of the method | |
213 | Int_t numberOfEvents = AliRunLoader::Instance()->GetNumberOfEventsPerRun(); | |
214 | cout << "Number of events per run" << numberOfEvents << endl; | |
215 | TArrayF eventVertex; | |
216 | eventVertex.Set(3 * (numberOfEvents + fNBgEvents)); | |
217 | TArrayF eventTime; | |
218 | eventTime.Set(numberOfEvents + fNBgEvents); | |
219 | fCurrentEvent=0; | |
220 | //Create stacks | |
221 | fInternalStacks = new TObjArray(numberOfEvents + fNBgEvents); //Create array of internal stacks | |
222 | fCollisionGeometries = new AliCollisionGeometry*[numberOfEvents + fNBgEvents]; //Create array of collision geometries | |
223 | fHeaders = new AliGenCocktailEventHeader*[numberOfEvents + fNBgEvents]; //Create array of headers | |
224 | ||
225 | for(i = 0; i < numberOfEvents + fNBgEvents; i++) | |
226 | { | |
227 | stack = new AliStack(10000); | |
228 | stack->Reset(); | |
229 | fInternalStacks->Add(stack); | |
230 | Vertex(); | |
231 | for (Int_t j = 0; j < 3; j++) eventVertex[3 * i + j] = fVertex[j]; | |
232 | eventTime[i] = fTime; | |
233 | fHeaders[i] = new AliGenCocktailEventHeader(); | |
234 | fCollisionGeometries[i] = 0; | |
235 | } | |
236 | /*********************************************************************/ | |
237 | TIter next(fEntries); | |
238 | AliGenCocktailEntry *entry; | |
239 | AliGenCocktailEntry *e1; | |
240 | AliGenCocktailEntry *e2; | |
241 | const TObjArray *partArray; | |
242 | // | |
243 | // Loop over generators and generate events | |
244 | Int_t igen=0; | |
245 | while((entry = (AliGenCocktailEntry*)next())) | |
246 | { | |
247 | igen++; | |
248 | cout<<"Generator "<<igen<<" : "<<entry->GetName()<<endl; | |
249 | /***********************************************/ | |
250 | //First generator for all evenets, than second for all events, etc... | |
251 | for(i = 0; i < numberOfEvents + fNBgEvents; i++) | |
252 | { | |
253 | cout<<" EVENT "<<i << endl; | |
254 | stack = GetStack(i); | |
255 | partArray = stack->Particles(); | |
256 | fCurrentGenerator = entry->Generator(); | |
257 | fCurrentGenerator->SetStack(stack); | |
258 | if (igen ==1) | |
259 | { | |
260 | entry->SetFirst(0); | |
261 | } | |
262 | else | |
263 | { | |
264 | entry->SetFirst((partArray->GetEntriesFast())+1); | |
265 | } | |
266 | // Set the vertex for the generator | |
267 | Int_t ioff = 3 * i; | |
268 | fCurrentGenerator->SetVertex(eventVertex.At(ioff), eventVertex.At(ioff + 1), eventVertex.At(ioff + 2)); | |
269 | fCurrentGenerator->SetTime(eventTime.At(i)); | |
270 | fHeader = fHeaders[i]; | |
271 | // Set the vertex and time for the cocktail | |
272 | TArrayF v(3); | |
273 | for (Int_t j=0; j<3; j++) v[j] = eventVertex.At(ioff + j); | |
274 | fHeader->SetPrimaryVertex(v); | |
275 | fHeader->SetInteractionTime(eventTime.At(i)); | |
276 | // Generate event | |
277 | fCurrentGenerator->Generate(); | |
278 | // | |
279 | entry->SetLast(partArray->GetEntriesFast()); | |
280 | ||
281 | if (fCurrentGenerator->ProvidesCollisionGeometry()) | |
282 | fCollisionGeometries[i] = | |
283 | new AliCollisionGeometry(*(fCurrentGenerator->CollisionGeometry())); | |
284 | } // event loop | |
285 | /***********************************************/ | |
286 | } // generator loop | |
287 | next.Reset(); | |
288 | while((entry = (AliGenCocktailEntry*)next())) | |
289 | { | |
290 | entry->PrintInfo(); | |
291 | } | |
292 | for ( entry=FirstGenerator();entry;entry=NextGenerator() ) | |
293 | { | |
294 | entry->PrintInfo(); | |
295 | } | |
296 | for (FirstGeneratorPair(e1,e2); (e1&&e2); NextGeneratorPair(e1,e2) ) | |
297 | { | |
298 | printf("\n -----------------------------"); | |
299 | e1->PrintInfo(); | |
300 | e2->PrintInfo(); | |
301 | } | |
302 | ||
303 | ||
304 | /***********************************************/ | |
305 | /*******After Burners Processing****************/ | |
306 | /***********************************************/ | |
307 | TIter nextAfterBurner(fAfterBurnerEntries); | |
308 | AliGenCocktailEntry *afterBurnerEntry; | |
309 | Int_t iab =0; //number of current after burner / counter | |
310 | ||
311 | cout<<"\n\nRunning After Burners"<<endl; | |
312 | while((afterBurnerEntry = (AliGenCocktailEntry*)nextAfterBurner())) | |
313 | { | |
314 | cout<<"After Burner "<<iab++<<" :"<<afterBurnerEntry->GetName()<<endl; | |
315 | fCurrentGenerator = afterBurnerEntry->Generator(); | |
316 | fCurrentGenerator->Generate(); | |
317 | } | |
318 | cout<<endl<<"Finished. Processed "<<iab<<" After Burners"<<endl; | |
319 | ||
320 | /***********************************************/ | |
321 | /***********************************************/ | |
322 | /***********************************************/ | |
323 | ||
324 | fGenerationDone=kTRUE; | |
325 | SetTracks(0); //copy event 0 to gAlice stack | |
326 | ||
327 | /*********************************************************************/ | |
328 | // Pass the header to gAlice | |
329 | fHeader = fHeaders[0]; | |
330 | gAlice->SetGenEventHeader(fHeader); | |
331 | } //else generated | |
332 | } | |
333 | /*********************************************************************/ | |
334 | /*********************************************************************/ | |
335 | ||
336 | AliStack* AliGenCocktailAfterBurner::GetStack(Int_t n) const | |
337 | { | |
338 | //Returns the pointer to the N'th stack (event) | |
339 | if( ( n<0 ) || ( n >= (GetNumberOfEvents()) ) ) | |
340 | { | |
341 | Fatal("AliGenCocktailAfterBurner::GetStack","Asked for non existing stack (%d)",n); | |
342 | return 0; | |
343 | } | |
344 | return ((AliStack*) fInternalStacks->At(n) ); | |
345 | } | |
346 | ||
347 | /*********************************************************************/ | |
348 | /*********************************************************************/ | |
349 | ||
350 | AliCollisionGeometry* AliGenCocktailAfterBurner::GetCollisionGeometry(Int_t n) const | |
351 | { | |
352 | //Returns the pointer to the N'th stack (event) | |
353 | if( ( n<0 ) || ( n>=GetNumberOfEvents() ) ) | |
354 | { | |
355 | Fatal("AliGenCocktailAfterBurner::GetCollisionGeometry","Asked for non existing stack (%d)",n); | |
356 | return 0; | |
357 | } | |
358 | return fCollisionGeometries[n]; | |
359 | } | |
360 | ||
361 | /*********************************************************************/ | |
362 | /*********************************************************************/ | |
363 | ||
364 | void AliGenCocktailAfterBurner::SetActiveEventNumber(Int_t actev) | |
365 | { | |
366 | //Set Active Events Number and Active Stack | |
367 | //There is only one active event number | |
368 | //Made fo convinience of work with AfterBurners (HBT processor) | |
369 | ||
370 | fActiveEvent = actev; | |
371 | fActiveStack = GetStack(actev); | |
372 | } | |
373 | /*********************************************************************/ | |
374 | /*********************************************************************/ | |
375 | ||
376 | void AliGenCocktailAfterBurner::SetTracks(Int_t stackno) | |
377 | { | |
378 | //Method which copies tracks from given stack to the | |
379 | //gAlice's stack | |
380 | AliStack* instack = GetStack(stackno); | |
381 | Int_t done; | |
382 | Int_t parent; | |
383 | Int_t pdg; | |
384 | Double_t px, py, pz, e, vx, vy, vz, tof, polx, poly, polz; | |
385 | TMCProcess mech; | |
386 | Int_t ntr; | |
387 | Float_t weight; | |
388 | TVector3 pol; | |
389 | ||
390 | TParticle * p; | |
391 | Int_t n = instack->GetNtrack(); | |
392 | if (gDebug) | |
393 | { | |
394 | cout<<"AliGenCocktailAfterBurner::SetTracks("<<stackno<<"). Number of particles is: "<<n<<"\n"; | |
395 | } | |
396 | ||
397 | for(Int_t i = 0; i < n; i++) | |
398 | { | |
399 | ||
400 | p = instack->Particle(i); | |
401 | done = !p->TestBit(kDoneBit); | |
402 | parent = p->GetMother(0); | |
403 | pdg = p->GetPdgCode(); | |
404 | px = p->Px(); | |
405 | py = p->Py(); | |
406 | pz = p->Pz(); | |
407 | e = p->Energy(); | |
408 | vx = p->Vx(); | |
409 | vy = p->Vy(); | |
410 | vz = p->Vz(); | |
411 | tof = p->T(); | |
412 | p->GetPolarisation(pol); | |
413 | polx = pol.X(); | |
414 | poly = pol.Y(); | |
415 | polz = pol.Z(); | |
416 | mech = AliGenCocktailAfterBurner::IntToMCProcess(p->GetUniqueID()); | |
417 | weight = p->GetWeight(); | |
418 | ||
419 | gAlice->GetMCApp()->PushTrack(done, parent, pdg, px, py, pz, e, vx, vy, vz, tof,polx, poly, polz, mech, ntr, weight); | |
420 | ||
421 | SetHighWaterMark(ntr) ; | |
422 | ||
423 | } | |
424 | } | |
425 | /*********************************************************************/ | |
426 | /*********************************************************************/ | |
427 | ||
428 | TMCProcess AliGenCocktailAfterBurner::IntToMCProcess(Int_t no) | |
429 | { | |
430 | //Mothod used to convert uniqueID (integer) to TMCProcess type | |
431 | const TMCProcess kMCprocesses[kMaxMCProcess] = | |
432 | { | |
433 | kPNoProcess, kPMultipleScattering, kPEnergyLoss, kPMagneticFieldL, | |
434 | kPDecay, kPPair, kPCompton, kPPhotoelectric, kPBrem, kPDeltaRay, | |
435 | kPAnnihilation, kPHadronic, kPNoProcess, kPEvaporation, kPNuclearFission, | |
436 | kPNuclearAbsorption, kPPbarAnnihilation, kPNCapture, kPHElastic, | |
437 | kPHInhelastic, kPMuonNuclear, kPTOFlimit,kPPhotoFission, kPNoProcess, | |
438 | kPRayleigh, kPNoProcess, kPNoProcess, kPNoProcess, kPNull, kPStop | |
439 | }; | |
440 | ||
441 | for (Int_t i = 0;i<kMaxMCProcess;i++) | |
442 | { | |
443 | if (kMCprocesses[i] == no) | |
444 | { | |
445 | return kMCprocesses[i]; | |
446 | } | |
447 | } | |
448 | return kPNoProcess; | |
449 | } | |
450 |