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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 | ||
16 | // | |
17 | // Container class for AliGenerator and AfterBurners | |
18 | // (which are AliGenerators as well) through recursion. | |
19 | // The container is itself an AliGenerator a | |
20 | // what is stored are not the pointers to the generators directly | |
21 | // but to objects of type | |
22 | // AliGenCocktailAfterBurner entry. | |
23 | // The class provides also iterator functionality. | |
24 | // Author: andreas.morsch@cern.ch and piotr.skowronski@cern.ch | |
25 | // | |
2b9786f4 | 26 | // 24.09.2001 Piotr Skowronski |
27 | // debug -> gDebug, | |
28 | // fNEvents replaced with gAlice->GetEventsPerRun() | |
29 | // | |
0b359ada | 30 | #include "AliGenCocktailAfterBurner.h" |
31 | #include "AliGenCocktailEntry.h" | |
2b9786f4 | 32 | |
0b359ada | 33 | #include "AliStack.h" |
34 | #include <TObjArray.h> | |
35 | #include <TList.h> | |
36 | #include <TParticle.h> | |
37 | #include <iostream.h> | |
38 | ||
2b9786f4 | 39 | |
0b359ada | 40 | ClassImp(AliGenCocktailAfterBurner) |
2b9786f4 | 41 | /*********************************************************************/ |
42 | /*********************************************************************/ | |
0b359ada | 43 | |
44 | AliGenCocktailAfterBurner::AliGenCocktailAfterBurner() | |
45 | { | |
46 | // Constructor | |
2b9786f4 | 47 | if (gDebug > 0) |
0b359ada | 48 | cout<<"AliGenCocktailAfterBurner::AliGenCocktailAfterBurner()"<<endl; |
49 | SetName("AliGenCocktailAfterBurner"); | |
50 | SetTitle("AliGenCocktailAfterBurner"); | |
51 | fInternalStacks =0; | |
2685bf00 | 52 | fActiveStack = 0; |
53 | fCurrentGenerator = 0; | |
0b359ada | 54 | fCurrentEvent =0; |
55 | fAfterBurnerEntries = new TList(); | |
56 | fNAfterBurners = 0; | |
57 | fGenerationDone = kFALSE; | |
58 | ||
59 | fActiveEvent = -1; | |
466bfded | 60 | fNBgEvents = 0; |
0b359ada | 61 | } |
2b9786f4 | 62 | /*********************************************************************/ |
63 | /*********************************************************************/ | |
0b359ada | 64 | |
65 | AliGenCocktailAfterBurner::~AliGenCocktailAfterBurner() | |
66 | { | |
2b9786f4 | 67 | //destructor |
68 | ||
69 | if (fInternalStacks) //delete stacks | |
70 | { | |
71 | fInternalStacks->SetOwner(); | |
72 | delete fInternalStacks; | |
73 | } | |
74 | if (fAfterBurnerEntries) delete fAfterBurnerEntries; //delete entries | |
0b359ada | 75 | } |
2b9786f4 | 76 | /*********************************************************************/ |
77 | /*********************************************************************/ | |
0b359ada | 78 | |
79 | void AliGenCocktailAfterBurner:: | |
80 | AddAfterBurner(AliGenerator *AfterBurner, char* Name, Float_t RateExp) | |
81 | { | |
82 | // | |
83 | // Forward parameters to the new AfterBurner | |
84 | ||
2b9786f4 | 85 | if (gDebug>0)cout<<"AliGenCocktailAfterBurner::AddAfterBurner Named "<<Name<<endl; |
0b359ada | 86 | |
87 | if(TestBit(kPtRange)) | |
88 | AfterBurner->SetPtRange(fPtMin,fPtMax); | |
89 | if(TestBit(kMomentumRange)) | |
90 | AfterBurner->SetMomentumRange(fPMin,fPMax); | |
91 | ||
92 | AfterBurner->SetYRange(fYMin,fYMax); | |
466bfded | 93 | AfterBurner->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi()); |
94 | AfterBurner->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi()); | |
95 | AfterBurner->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]); | |
96 | AfterBurner->SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]); | |
0b359ada | 97 | AfterBurner->SetVertexSmear(fVertexSmear); |
98 | AfterBurner->SetTrackingFlag(fTrackIt); | |
99 | // | |
100 | // Add AfterBurner to list | |
101 | ||
102 | AliGenCocktailEntry *entry = | |
103 | new AliGenCocktailEntry(AfterBurner, Name, RateExp); | |
104 | fAfterBurnerEntries->Add(entry); | |
105 | fNAfterBurners++; | |
984c69bd | 106 | // |
984c69bd | 107 | |
0b359ada | 108 | } |
2b9786f4 | 109 | /*********************************************************************/ |
110 | /*********************************************************************/ | |
0b359ada | 111 | |
112 | void AliGenCocktailAfterBurner::Init() | |
113 | { | |
114 | // Initialisation | |
2b9786f4 | 115 | fGenerationDone = kFALSE; |
466bfded | 116 | if (fInternalStacks) //delete stacks |
117 | { | |
118 | fInternalStacks->SetOwner(); | |
119 | fInternalStacks->Delete(); //clean after previous generation cycle | |
120 | } | |
121 | ||
0b359ada | 122 | this->AliGenCocktail::Init(); |
123 | ||
2b9786f4 | 124 | if (gDebug>0) cout<<"AliGenCocktailAfterBurner::Init"<<endl; |
0b359ada | 125 | TIter next(fAfterBurnerEntries); |
126 | AliGenCocktailEntry *entry; | |
127 | // | |
128 | // Loop over generators and initialize | |
129 | while((entry = (AliGenCocktailEntry*)next())) { | |
130 | entry->Generator()->Init(); | |
131 | } | |
132 | } | |
2b9786f4 | 133 | /*********************************************************************/ |
134 | /*********************************************************************/ | |
0b359ada | 135 | |
136 | void AliGenCocktailAfterBurner::Generate() | |
137 | { | |
138 | // | |
2b9786f4 | 139 | // Generate event |
140 | // Firsts runs each generator for all events | |
141 | // than after burners ones for each event | |
142 | // | |
143 | // It generates and processes all events during | |
144 | // first call only. | |
145 | // In next calls it just returns already generated | |
146 | // and processed events to the gAlice | |
147 | ||
148 | if (gDebug>0) | |
149 | cout<<"#####################################"<<endl | |
150 | <<"#AliGenCocktailAfterBurner::Generate#"<<endl | |
151 | <<"#####################################"<<endl; | |
0b359ada | 152 | |
153 | Int_t i; //iterator | |
154 | AliStack * stack; | |
2b9786f4 | 155 | |
0b359ada | 156 | if (fGenerationDone) |
2b9786f4 | 157 | {//if generation is done (in first call) |
158 | //just copy particles from the stack to the gAlice | |
159 | SetTracks(++fCurrentEvent); | |
160 | cout<<"Returning event "<<fCurrentEvent<<endl; | |
161 | return; | |
0b359ada | 162 | } |
163 | else | |
2b9786f4 | 164 | { //Here we are in the first call of the method |
165 | fCurrentEvent=0; | |
166 | Int_t numberOfEvents = gAlice->GetEventsPerRun(); | |
167 | //Create stacks | |
466bfded | 168 | fInternalStacks = new TObjArray(numberOfEvents + fNBgEvents); //Create array of internal stacks |
169 | for(i=0;i<numberOfEvents + fNBgEvents;i++) | |
2b9786f4 | 170 | { |
171 | stack = new AliStack(10000); | |
172 | stack->Reset(); | |
173 | fInternalStacks->Add(stack); | |
174 | } | |
0b359ada | 175 | /*********************************************************************/ |
2b9786f4 | 176 | TIter next(fEntries); |
177 | AliGenCocktailEntry *entry; | |
178 | AliGenCocktailEntry *e1; | |
179 | AliGenCocktailEntry *e2; | |
180 | TObjArray *partArray; | |
181 | // | |
182 | // Loop over generators and generate events | |
183 | Int_t igen=0; | |
184 | while((entry = (AliGenCocktailEntry*)next())) | |
185 | { | |
186 | igen++; | |
187 | cout<<"Generator "<<igen<<" : "<<entry->GetName()<<endl; | |
188 | /***********************************************/ | |
0b359ada | 189 | //First generator for all evenets, than second for all events, etc... |
466bfded | 190 | for(i=0;i<numberOfEvents + fNBgEvents;i++) |
2b9786f4 | 191 | { |
192 | cout<<" EVENT "<<i<<endl; | |
193 | stack = GetStack(i); | |
194 | partArray = stack->Particles(); | |
195 | fCurrentGenerator = entry->Generator(); | |
196 | fCurrentGenerator->SetStack(stack); | |
197 | if (igen ==1) | |
198 | { | |
199 | entry->SetFirst(0); | |
200 | } | |
201 | else | |
202 | { | |
203 | entry->SetFirst((partArray->GetEntriesFast())+1); | |
204 | } | |
205 | fCurrentGenerator->Generate(); | |
206 | entry->SetLast(partArray->GetEntriesFast()); | |
207 | } | |
208 | /***********************************************/ | |
209 | } | |
210 | next.Reset(); | |
211 | while((entry = (AliGenCocktailEntry*)next())) | |
212 | { | |
213 | entry->PrintInfo(); | |
214 | } | |
215 | for ( entry=FirstGenerator();entry;entry=NextGenerator() ) | |
216 | { | |
217 | entry->PrintInfo(); | |
218 | } | |
219 | for (FirstGeneratorPair(e1,e2); (e1&&e2); NextGeneratorPair(e1,e2) ) | |
220 | { | |
221 | printf("\n -----------------------------"); | |
222 | e1->PrintInfo(); | |
223 | e2->PrintInfo(); | |
0b359ada | 224 | } |
225 | ||
0b359ada | 226 | |
2b9786f4 | 227 | /***********************************************/ |
228 | /*******After Burners Processing****************/ | |
229 | /***********************************************/ | |
230 | TIter nextAfterBurner(fAfterBurnerEntries); | |
231 | AliGenCocktailEntry *afterBurnerEntry; | |
232 | Int_t iab =0; //number of current after burner / counter | |
233 | ||
234 | cout<<"\n\nRunning After Burners"<<endl; | |
235 | while((afterBurnerEntry = (AliGenCocktailEntry*)nextAfterBurner())) | |
236 | { | |
237 | cout<<"After Burner "<<iab++<<" :"<<afterBurnerEntry->GetName()<<endl; | |
238 | fCurrentGenerator = afterBurnerEntry->Generator(); | |
239 | fCurrentGenerator->Generate(); | |
240 | } | |
241 | cout<<endl<<"Finished. Processed "<<iab<<" After Burners"<<endl; | |
242 | ||
243 | /***********************************************/ | |
244 | /***********************************************/ | |
245 | /***********************************************/ | |
0b359ada | 246 | |
2b9786f4 | 247 | fGenerationDone=kTRUE; |
248 | SetTracks(0); //copy event 0 to gAlice stack | |
0b359ada | 249 | |
250 | /*********************************************************************/ | |
251 | ||
252 | }//else generated | |
253 | } | |
2b9786f4 | 254 | /*********************************************************************/ |
255 | /*********************************************************************/ | |
0b359ada | 256 | |
257 | AliGenCocktailAfterBurner& AliGenCocktailAfterBurner::operator=(const AliGenCocktailAfterBurner& rhs) | |
258 | { | |
259 | // Assignment operator | |
260 | return *this; | |
261 | } | |
2b9786f4 | 262 | /*********************************************************************/ |
263 | /*********************************************************************/ | |
0b359ada | 264 | |
265 | AliStack* AliGenCocktailAfterBurner::GetStack(Int_t n) | |
266 | { | |
2b9786f4 | 267 | //Returns the pointer to the N'th stack (event) |
268 | if( ( n<0 ) || ( n>=GetNumberOfEvents() ) ) | |
0b359ada | 269 | { |
2b9786f4 | 270 | Fatal("AliGenCocktailAfterBurner::GetStack","Asked for non existing stack (%d)",n); |
271 | return 0; | |
0b359ada | 272 | } |
2682e810 | 273 | return ((AliStack*) fInternalStacks->At(n) ); |
0b359ada | 274 | } |
2b9786f4 | 275 | /*********************************************************************/ |
276 | /*********************************************************************/ | |
0b359ada | 277 | |
278 | void AliGenCocktailAfterBurner::SetActiveEventNumber(Int_t actev) | |
279 | { | |
2b9786f4 | 280 | //Set Active Events Number and Active Stack |
281 | //There is only one active event number | |
282 | //Made fo convinience of work with AfterBurners (HBT processor) | |
283 | ||
0b359ada | 284 | fActiveEvent = actev; |
285 | fActiveStack = GetStack(actev); | |
286 | } | |
2b9786f4 | 287 | /*********************************************************************/ |
288 | /*********************************************************************/ | |
0b359ada | 289 | |
290 | void AliGenCocktailAfterBurner::SetTracks(Int_t stackno) | |
291 | { | |
2b9786f4 | 292 | //Method which copies tracks from given stack to the |
293 | //gAlice's stack | |
0b359ada | 294 | AliStack* instack = GetStack(stackno); |
295 | Int_t done; | |
296 | Int_t parent; | |
297 | Int_t pdg; | |
298 | Double_t px, py, pz, e, vx, vy, vz, tof, polx, poly, polz; | |
299 | AliMCProcess mech; | |
300 | Int_t ntr; | |
301 | Float_t weight; | |
302 | TVector3 pol; | |
303 | ||
304 | TParticle * p; | |
305 | Int_t N = instack->GetNtrack(); | |
2b9786f4 | 306 | if (gDebug) |
0b359ada | 307 | { |
2b9786f4 | 308 | cout<<"AliGenCocktailAfterBurner::SetTracks("<<stackno<<"). Number of particles is: "<<N<<"\n"; |
0b359ada | 309 | } |
310 | ||
311 | for(Int_t i = 0; i < N; i++) | |
312 | { | |
313 | ||
2b9786f4 | 314 | p = instack->Particle(i); |
315 | done = !p->TestBit(kDoneBit); | |
316 | parent = p->GetMother(0); | |
317 | pdg = p->GetPdgCode(); | |
318 | px = p->Px(); | |
319 | py = p->Py(); | |
320 | pz = p->Pz(); | |
321 | e = p->Energy(); | |
322 | vx = p->Vx(); | |
323 | vy = p->Vy(); | |
324 | vz = p->Vz(); | |
325 | tof = p->T(); | |
326 | p->GetPolarisation(pol); | |
327 | polx = pol.X(); | |
328 | poly = pol.Y(); | |
329 | polz = pol.Z(); | |
330 | mech = AliGenCocktailAfterBurner::IntToMCProcess(p->GetUniqueID()); | |
331 | weight = p->GetWeight(); | |
332 | ||
333 | gAlice->SetTrack(done, parent, pdg, px, py, pz, e, vx, vy, vz, tof, | |
334 | polx, poly, polz, mech, ntr, weight); | |
0b359ada | 335 | } |
336 | } | |
2b9786f4 | 337 | /*********************************************************************/ |
338 | /*********************************************************************/ | |
0b359ada | 339 | |
340 | AliMCProcess AliGenCocktailAfterBurner::IntToMCProcess(Int_t no) | |
341 | { | |
2b9786f4 | 342 | //Mothod used to convert uniqueID (integer) to AliMCProcess type |
0b359ada | 343 | const AliMCProcess MCprocesses[kMaxMCProcess] = |
2b9786f4 | 344 | { |
345 | kPNoProcess, kPMultipleScattering, kPEnergyLoss, kPMagneticFieldL, | |
0b359ada | 346 | kPDecay, kPPair, kPCompton, kPPhotoelectric, kPBrem, kPDeltaRay, |
347 | kPAnnihilation, kPHadronic, kPNoProcess, kPEvaporation, kPNuclearFission, | |
348 | kPNuclearAbsorption, kPPbarAnnihilation, kPNCapture, kPHElastic, | |
349 | kPHInhelastic, kPMuonNuclear, kPTOFlimit,kPPhotoFission, kPNoProcess, | |
2b9786f4 | 350 | kPRayleigh, kPNoProcess, kPNoProcess, kPNoProcess, kPNull, kPStop |
351 | }; | |
0b359ada | 352 | |
353 | for (Int_t i = 0;i<kMaxMCProcess;i++) | |
354 | { | |
2b9786f4 | 355 | if (MCprocesses[i] == no) |
356 | { | |
357 | //if (debug) cout<<"IntToMCProcess("<<no<<") returned AliMCProcess Named \""<<AliMCProcessName[MCprocesses[i]]<<"\""<<endl; | |
358 | return MCprocesses[i]; | |
359 | } | |
0b359ada | 360 | } |
361 | return kPNoProcess; | |
362 | } |