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9e1a0ddb | 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 | ||
acd84897 | 16 | /* $Id$ */ |
9e1a0ddb | 17 | |
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // Particles stack class | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
9e1a0ddb | 24 | |
88cb7938 | 25 | #include <TFile.h> |
26 | #include <TFolder.h> | |
9e1a0ddb | 27 | #include <TObjArray.h> |
28 | #include <TParticle.h> | |
fe046ade | 29 | #include <TParticlePDG.h> |
9e1a0ddb | 30 | #include <TTree.h> |
9e1a0ddb | 31 | |
9e1a0ddb | 32 | #include "AliHit.h" |
88cb7938 | 33 | #include "AliModule.h" |
34 | #include "AliRun.h" | |
35 | #include "AliRunLoader.h" | |
36 | #include "AliStack.h" | |
9e1a0ddb | 37 | |
38 | ClassImp(AliStack) | |
39 | ||
e2afb3b6 | 40 | //_______________________________________________________________________ |
41 | AliStack::AliStack(): | |
42 | fParticles(0), | |
43 | fParticleMap(0), | |
44 | fParticleFileMap(0), | |
45 | fParticleBuffer(0), | |
46 | fTreeK(0), | |
47 | fNtrack(0), | |
48 | fNprimary(0), | |
49 | fCurrent(-1), | |
50 | fCurrentPrimary(-1), | |
51 | fHgwmk(0), | |
88cb7938 | 52 | fLoadPoint(0), |
53 | fEventFolderName(AliConfig::fgkDefaultEventFolderName) | |
9e1a0ddb | 54 | { |
55 | // | |
e2afb3b6 | 56 | // Default constructor |
9e1a0ddb | 57 | // |
9e1a0ddb | 58 | } |
59 | ||
e2afb3b6 | 60 | //_______________________________________________________________________ |
88cb7938 | 61 | AliStack::AliStack(Int_t size, const char* evfoldname): |
e2afb3b6 | 62 | fParticles(new TClonesArray("TParticle",1000)), |
63 | fParticleMap(new TObjArray(size)), | |
64 | fParticleFileMap(0), | |
65 | fParticleBuffer(0), | |
66 | fTreeK(0), | |
67 | fNtrack(0), | |
68 | fNprimary(0), | |
69 | fCurrent(-1), | |
70 | fCurrentPrimary(-1), | |
71 | fHgwmk(0), | |
88cb7938 | 72 | fLoadPoint(0), |
73 | fEventFolderName(evfoldname) | |
e2afb3b6 | 74 | { |
75 | // | |
76 | // Constructor | |
77 | // | |
78 | } | |
9e1a0ddb | 79 | |
e2afb3b6 | 80 | //_______________________________________________________________________ |
81 | AliStack::AliStack(const AliStack& st): | |
82 | TVirtualMCStack(st), | |
83 | fParticles(0), | |
84 | fParticleMap(0), | |
85 | fParticleFileMap(0), | |
86 | fParticleBuffer(0), | |
87 | fTreeK(0), | |
88 | fNtrack(0), | |
89 | fNprimary(0), | |
90 | fCurrent(-1), | |
91 | fCurrentPrimary(-1), | |
92 | fHgwmk(0), | |
93 | fLoadPoint(0) | |
9e1a0ddb | 94 | { |
95 | // | |
e2afb3b6 | 96 | // Copy constructor |
9e1a0ddb | 97 | // |
e2afb3b6 | 98 | st.Copy(*this); |
9e1a0ddb | 99 | } |
100 | ||
e2afb3b6 | 101 | //_______________________________________________________________________ |
102 | void AliStack::Copy(AliStack&) const | |
103 | { | |
104 | Fatal("Copy","Not implemented!\n"); | |
105 | } | |
9e1a0ddb | 106 | |
e2afb3b6 | 107 | //_______________________________________________________________________ |
9e1a0ddb | 108 | AliStack::~AliStack() |
109 | { | |
110 | // | |
111 | // Destructor | |
112 | // | |
113 | ||
114 | if (fParticles) { | |
115 | fParticles->Delete(); | |
116 | delete fParticles; | |
117 | } | |
118 | delete fParticleMap; | |
88cb7938 | 119 | //PH??? delete fTreeK; |
9e1a0ddb | 120 | } |
121 | ||
122 | // | |
123 | // public methods | |
124 | // | |
125 | ||
126 | //_____________________________________________________________________________ | |
642f15cf | 127 | void AliStack::PushTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom, |
88cb7938 | 128 | Float_t *vpos, Float_t *polar, Float_t tof, |
129 | TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) | |
9e1a0ddb | 130 | { |
131 | // | |
132 | // Load a track on the stack | |
133 | // | |
134 | // done 0 if the track has to be transported | |
135 | // 1 if not | |
136 | // parent identifier of the parent track. -1 for a primary | |
137 | // pdg particle code | |
138 | // pmom momentum GeV/c | |
139 | // vpos position | |
140 | // polar polarisation | |
141 | // tof time of flight in seconds | |
142 | // mecha production mechanism | |
143 | // ntr on output the number of the track stored | |
144 | // | |
145 | ||
9e1a0ddb | 146 | // const Float_t tlife=0; |
147 | ||
148 | // | |
149 | // Here we get the static mass | |
150 | // For MC is ok, but a more sophisticated method could be necessary | |
151 | // if the calculated mass is required | |
152 | // also, this method is potentially dangerous if the mass | |
153 | // used in the MC is not the same of the PDG database | |
154 | // | |
fe046ade | 155 | TParticlePDG* pmc = TDatabasePDG::Instance()->GetParticle(pdg); |
156 | if (pmc) { | |
157 | Float_t mass = TDatabasePDG::Instance()->GetParticle(pdg)->Mass(); | |
158 | Float_t e=TMath::Sqrt(mass*mass+pmom[0]*pmom[0]+ | |
159 | pmom[1]*pmom[1]+pmom[2]*pmom[2]); | |
160 | ||
ccf7a81f | 161 | // printf("Loading mass %f ene %f No %d ip %d parent %d done %d pos %f %f %f mom %f %f %f kS %d m \n", |
162 | // mass,e,fNtrack,pdg,parent,done,vpos[0],vpos[1],vpos[2],pmom[0],pmom[1],pmom[2],kS); | |
163 | ||
9e1a0ddb | 164 | |
642f15cf | 165 | PushTrack(done, parent, pdg, pmom[0], pmom[1], pmom[2], e, |
fe046ade | 166 | vpos[0], vpos[1], vpos[2], tof, polar[0], polar[1], polar[2], |
167 | mech, ntr, weight, is); | |
168 | } else { | |
642f15cf | 169 | Warning("PushTrack", "Particle type %d not defined in PDG Database !\n", pdg); |
170 | Warning("PushTrack", "Particle skipped !\n"); | |
fe046ade | 171 | } |
9e1a0ddb | 172 | } |
173 | ||
174 | //_____________________________________________________________________________ | |
642f15cf | 175 | void AliStack::PushTrack(Int_t done, Int_t parent, Int_t pdg, |
9e1a0ddb | 176 | Double_t px, Double_t py, Double_t pz, Double_t e, |
177 | Double_t vx, Double_t vy, Double_t vz, Double_t tof, | |
178 | Double_t polx, Double_t poly, Double_t polz, | |
98490ea9 | 179 | TMCProcess mech, Int_t &ntr, Double_t weight, Int_t is) |
9e1a0ddb | 180 | { |
181 | // | |
182 | // Load a track on the stack | |
183 | // | |
184 | // done 0 if the track has to be transported | |
185 | // 1 if not | |
186 | // parent identifier of the parent track. -1 for a primary | |
187 | // pdg particle code | |
188 | // kS generation status code | |
189 | // px, py, pz momentum GeV/c | |
190 | // vx, vy, vz position | |
191 | // polar polarisation | |
192 | // tof time of flight in seconds | |
193 | // mech production mechanism | |
194 | // ntr on output the number of the track stored | |
195 | // | |
196 | // New method interface: | |
197 | // arguments were changed to be in correspondence with TParticle | |
198 | // constructor. | |
199 | // Note: the energy is not calculated from the static mass but | |
200 | // it is passed by argument e. | |
201 | ||
202 | ||
9e1a0ddb | 203 | const Int_t kFirstDaughter=-1; |
204 | const Int_t kLastDaughter=-1; | |
205 | ||
206 | TClonesArray &particles = *fParticles; | |
207 | TParticle* particle | |
208 | = new(particles[fLoadPoint++]) | |
47c8bcbe | 209 | TParticle(pdg, is, parent, -1, kFirstDaughter, kLastDaughter, |
9e1a0ddb | 210 | px, py, pz, e, vx, vy, vz, tof); |
211 | ||
212 | particle->SetPolarisation(polx, poly, polz); | |
213 | particle->SetWeight(weight); | |
214 | particle->SetUniqueID(mech); | |
215 | ||
216 | if(!done) particle->SetBit(kDoneBit); | |
217 | ||
218 | // Declare that the daughter information is valid | |
219 | particle->SetBit(kDaughtersBit); | |
220 | // Add the particle to the stack | |
221 | fParticleMap->AddAtAndExpand(particle, fNtrack);//CHECK!! | |
222 | ||
223 | if(parent>=0) { | |
e2afb3b6 | 224 | particle = dynamic_cast<TParticle*>(fParticleMap->At(parent)); |
1305ca2f | 225 | if (particle) { |
226 | particle->SetLastDaughter(fNtrack); | |
227 | if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack); | |
228 | } | |
229 | else { | |
642f15cf | 230 | printf("Error in AliStack::PushTrack: Parent %d does not exist\n",parent); |
1305ca2f | 231 | } |
9e1a0ddb | 232 | } |
233 | else { | |
234 | // | |
235 | // This is a primary track. Set high water mark for this event | |
236 | fHgwmk = fNtrack; | |
237 | // | |
238 | // Set also number if primary tracks | |
239 | fNprimary = fHgwmk+1; | |
240 | fCurrentPrimary++; | |
241 | } | |
242 | ntr = fNtrack++; | |
243 | } | |
244 | ||
245 | //_____________________________________________________________________________ | |
642f15cf | 246 | TParticle* AliStack::PopNextTrack(Int_t& itrack) |
b9d0a01d | 247 | { |
248 | // | |
249 | // Returns next track from stack of particles | |
250 | // | |
251 | ||
252 | ||
253 | TParticle* track = GetNextParticle(); | |
254 | ||
255 | if (track) { | |
256 | itrack = fCurrent; | |
257 | track->SetBit(kDoneBit); | |
258 | } | |
fe046ade | 259 | else |
b9d0a01d | 260 | itrack = -1; |
fe046ade | 261 | |
262 | fCurrentTrack = track; | |
b9d0a01d | 263 | return track; |
264 | } | |
265 | ||
b9d0a01d | 266 | //_____________________________________________________________________________ |
642f15cf | 267 | TParticle* AliStack::PopPrimaryForTracking(Int_t i) |
b9d0a01d | 268 | { |
269 | // | |
270 | // Returns i-th primary particle if it is flagged to be tracked, | |
271 | // 0 otherwise | |
272 | // | |
273 | ||
274 | TParticle* particle = Particle(i); | |
275 | ||
276 | if (!particle->TestBit(kDoneBit)) | |
277 | return particle; | |
278 | else | |
279 | return 0; | |
280 | } | |
281 | ||
9e1a0ddb | 282 | //_____________________________________________________________________________ |
283 | void AliStack::PurifyKine() | |
284 | { | |
285 | // | |
286 | // Compress kinematic tree keeping only flagged particles | |
287 | // and renaming the particle id's in all the hits | |
288 | // | |
289 | ||
290 | TObjArray &particles = *fParticleMap; | |
291 | int nkeep=fHgwmk+1, parent, i; | |
292 | TParticle *part, *father; | |
293 | TArrayI map(particles.GetLast()+1); | |
294 | ||
295 | // Save in Header total number of tracks before compression | |
296 | ||
297 | // If no tracks generated return now | |
298 | if(fHgwmk+1 == fNtrack) return; | |
299 | ||
9e1a0ddb | 300 | // First pass, invalid Daughter information |
301 | for(i=0; i<fNtrack; i++) { | |
302 | // Preset map, to be removed later | |
303 | if(i<=fHgwmk) map[i]=i ; | |
304 | else { | |
305 | map[i] = -99; | |
e2afb3b6 | 306 | if((part=dynamic_cast<TParticle*>(particles.At(i)))) { |
e44c5340 | 307 | // |
308 | // Check of this track should be kept for physics reasons | |
88cb7938 | 309 | if (KeepPhysics(part)) KeepTrack(i); |
e44c5340 | 310 | // |
76969085 | 311 | part->ResetBit(kDaughtersBit); |
312 | part->SetFirstDaughter(-1); | |
313 | part->SetLastDaughter(-1); | |
314 | } | |
9e1a0ddb | 315 | } |
316 | } | |
317 | // Invalid daughter information for the parent of the first particle | |
318 | // generated. This may or may not be the current primary according to | |
319 | // whether decays have been recorded among the primaries | |
e2afb3b6 | 320 | part = dynamic_cast<TParticle*>(particles.At(fHgwmk+1)); |
9e1a0ddb | 321 | particles.At(part->GetFirstMother())->ResetBit(kDaughtersBit); |
322 | // Second pass, build map between old and new numbering | |
323 | for(i=fHgwmk+1; i<fNtrack; i++) { | |
324 | if(particles.At(i)->TestBit(kKeepBit)) { | |
325 | ||
326 | // This particle has to be kept | |
327 | map[i]=nkeep; | |
328 | // If old and new are different, have to move the pointer | |
329 | if(i!=nkeep) particles[nkeep]=particles.At(i); | |
e2afb3b6 | 330 | part = dynamic_cast<TParticle*>(particles.At(nkeep)); |
9e1a0ddb | 331 | |
332 | // as the parent is always *before*, it must be already | |
333 | // in place. This is what we are checking anyway! | |
334 | if((parent=part->GetFirstMother())>fHgwmk) | |
335 | if(map[parent]==-99) Fatal("PurifyKine","map[%d] = -99!\n",parent); | |
336 | else part->SetFirstMother(map[parent]); | |
337 | ||
338 | nkeep++; | |
339 | } | |
340 | } | |
341 | ||
342 | // Fix daughters information | |
343 | for (i=fHgwmk+1; i<nkeep; i++) { | |
e2afb3b6 | 344 | part = dynamic_cast<TParticle*>(particles.At(i)); |
9e1a0ddb | 345 | parent = part->GetFirstMother(); |
346 | if(parent>=0) { | |
e2afb3b6 | 347 | father = dynamic_cast<TParticle*>(particles.At(parent)); |
9e1a0ddb | 348 | if(father->TestBit(kDaughtersBit)) { |
349 | ||
350 | if(i<father->GetFirstDaughter()) father->SetFirstDaughter(i); | |
351 | if(i>father->GetLastDaughter()) father->SetLastDaughter(i); | |
352 | } else { | |
353 | // Initialise daughters info for first pass | |
354 | father->SetFirstDaughter(i); | |
355 | father->SetLastDaughter(i); | |
356 | father->SetBit(kDaughtersBit); | |
357 | } | |
358 | } | |
359 | } | |
360 | ||
361 | // Now loop on all registered hit lists | |
362 | TList* hitLists = gAlice->GetHitLists(); | |
363 | TIter next(hitLists); | |
364 | TCollection *hitList; | |
e2afb3b6 | 365 | while((hitList = dynamic_cast<TCollection*>(next()))) { |
9e1a0ddb | 366 | TIter nexthit(hitList); |
367 | AliHit *hit; | |
e2afb3b6 | 368 | while((hit = dynamic_cast<AliHit*>(nexthit()))) { |
9e1a0ddb | 369 | hit->SetTrack(map[hit->GetTrack()]); |
370 | } | |
371 | } | |
372 | ||
373 | // | |
374 | // This for detectors which have a special mapping mechanism | |
375 | // for hits, such as TPC and TRD | |
376 | // | |
377 | ||
378 | TObjArray* modules = gAlice->Modules(); | |
379 | TIter nextmod(modules); | |
380 | AliModule *detector; | |
e2afb3b6 | 381 | while((detector = dynamic_cast<AliModule*>(nextmod()))) { |
9e1a0ddb | 382 | detector->RemapTrackHitIDs(map.GetArray()); |
ae9676e4 | 383 | detector->RemapTrackReferencesIDs(map.GetArray()); |
9e1a0ddb | 384 | } |
385 | ||
386 | // Now the output bit, from fHgwmk to nkeep we write everything and we erase | |
387 | if(nkeep>fParticleFileMap.GetSize()) fParticleFileMap.Set(Int_t (nkeep*1.5)); | |
388 | ||
389 | for (i=fHgwmk+1; i<nkeep; ++i) { | |
e2afb3b6 | 390 | fParticleBuffer = dynamic_cast<TParticle*>(particles.At(i)); |
88cb7938 | 391 | fParticleFileMap[i]=static_cast<Int_t>(TreeK()->GetEntries()); |
392 | TreeK()->Fill(); | |
17f4a3d9 | 393 | particles[i]=fParticleBuffer=0; |
88cb7938 | 394 | } |
9e1a0ddb | 395 | |
396 | for (i=nkeep; i<fNtrack; ++i) particles[i]=0; | |
397 | ||
76969085 | 398 | Int_t toshrink = fNtrack-fHgwmk-1; |
9e1a0ddb | 399 | fLoadPoint-=toshrink; |
400 | for(i=fLoadPoint; i<fLoadPoint+toshrink; ++i) fParticles->RemoveAt(i); | |
401 | ||
402 | fNtrack=nkeep; | |
403 | fHgwmk=nkeep-1; | |
404 | // delete [] map; | |
405 | } | |
406 | ||
e44c5340 | 407 | Bool_t AliStack::KeepPhysics(TParticle* part) |
408 | { | |
409 | // | |
410 | // Some particles have to kept on the stack for reasons motivated | |
411 | // by physics analysis. Decision is put here. | |
412 | // | |
413 | Bool_t keep = kFALSE; | |
414 | // | |
415 | // Keep first-generation daughter from primaries with heavy flavor | |
416 | // | |
417 | Int_t parent = part->GetFirstMother(); | |
418 | if (parent >= 0 && parent <= fHgwmk) { | |
e2afb3b6 | 419 | TParticle* father = dynamic_cast<TParticle*>(Particles()->At(parent)); |
e44c5340 | 420 | Int_t kf = father->GetPdgCode(); |
421 | kf = TMath::Abs(kf); | |
422 | Int_t kfl = kf; | |
423 | // meson ? | |
424 | if (kfl > 10) kfl/=100; | |
425 | // baryon | |
426 | if (kfl > 10) kfl/=10; | |
427 | if (kfl > 10) kfl/=10; | |
428 | if (kfl >= 4) { | |
429 | keep = kTRUE; | |
430 | } | |
431 | } | |
432 | return keep; | |
433 | } | |
434 | ||
9e1a0ddb | 435 | //_____________________________________________________________________________ |
436 | void AliStack::FinishEvent() | |
437 | { | |
88cb7938 | 438 | // |
439 | // Write out the kinematics that was not yet filled | |
440 | // | |
9e1a0ddb | 441 | |
88cb7938 | 442 | // Update event header |
9e1a0ddb | 443 | |
444 | ||
88cb7938 | 445 | if (!TreeK()) { |
9e1a0ddb | 446 | // Fatal("FinishEvent", "No kinematics tree is defined."); |
447 | // Don't panic this is a probably a lego run | |
448 | return; | |
9e1a0ddb | 449 | } |
450 | ||
451 | CleanParents(); | |
88cb7938 | 452 | if(TreeK()->GetEntries() ==0) { |
9e1a0ddb | 453 | // set the fParticleFileMap size for the first time |
454 | fParticleFileMap.Set(fHgwmk+1); | |
455 | } | |
456 | ||
457 | Bool_t allFilled = kFALSE; | |
458 | TObject *part; | |
459 | for(Int_t i=0; i<fHgwmk+1; ++i) | |
460 | if((part=fParticleMap->At(i))) { | |
e2afb3b6 | 461 | fParticleBuffer = dynamic_cast<TParticle*>(part); |
88cb7938 | 462 | fParticleFileMap[i]= static_cast<Int_t>(TreeK()->GetEntries()); |
463 | TreeK()->Fill(); | |
da2af24c | 464 | //PH (*fParticleMap)[i]=fParticleBuffer=0; |
465 | fParticleBuffer=0; | |
466 | fParticleMap->AddAt(0,i); | |
9e1a0ddb | 467 | |
468 | // When all primaries were filled no particle!=0 | |
469 | // should be left => to be removed later. | |
470 | if (allFilled) printf("Why != 0 part # %d?\n",i); | |
471 | } | |
88cb7938 | 472 | else |
473 | { | |
9e1a0ddb | 474 | // // printf("Why = 0 part # %d?\n",i); => We know. |
475 | // break; | |
88cb7938 | 476 | // we don't break now in order to be sure there is no |
477 | // particle !=0 left. | |
478 | // To be removed later and replaced with break. | |
479 | if(!allFilled) allFilled = kTRUE; | |
480 | } | |
9e1a0ddb | 481 | } |
9e1a0ddb | 482 | //_____________________________________________________________________________ |
88cb7938 | 483 | |
9e1a0ddb | 484 | void AliStack::FlagTrack(Int_t track) |
485 | { | |
486 | // | |
487 | // Flags a track and all its family tree to be kept | |
488 | // | |
489 | ||
490 | TParticle *particle; | |
491 | ||
492 | Int_t curr=track; | |
493 | while(1) { | |
e2afb3b6 | 494 | particle=dynamic_cast<TParticle*>(fParticleMap->At(curr)); |
9e1a0ddb | 495 | |
496 | // If the particle is flagged the three from here upward is saved already | |
497 | if(particle->TestBit(kKeepBit)) return; | |
498 | ||
499 | // Save this particle | |
500 | particle->SetBit(kKeepBit); | |
501 | ||
502 | // Move to father if any | |
503 | if((curr=particle->GetFirstMother())==-1) return; | |
504 | } | |
505 | } | |
506 | ||
507 | //_____________________________________________________________________________ | |
ed54bf31 | 508 | void AliStack::KeepTrack(Int_t track) |
9e1a0ddb | 509 | { |
510 | // | |
511 | // Flags a track to be kept | |
512 | // | |
513 | ||
514 | fParticleMap->At(track)->SetBit(kKeepBit); | |
515 | } | |
516 | ||
517 | //_____________________________________________________________________________ | |
518 | void AliStack::Reset(Int_t size) | |
519 | { | |
520 | // | |
521 | // Resets stack | |
522 | // | |
88cb7938 | 523 | |
9e1a0ddb | 524 | fNtrack=0; |
525 | fNprimary=0; | |
526 | fHgwmk=0; | |
527 | fLoadPoint=0; | |
528 | fCurrent = -1; | |
88cb7938 | 529 | fTreeK = 0x0; |
9e1a0ddb | 530 | ResetArrays(size); |
531 | } | |
532 | ||
533 | //_____________________________________________________________________________ | |
534 | void AliStack::ResetArrays(Int_t size) | |
535 | { | |
536 | // | |
537 | // Resets stack arrays | |
538 | // | |
539 | ||
be3380a3 | 540 | if (fParticles) |
541 | fParticles->Clear(); | |
542 | else | |
543 | fParticles = new TClonesArray("TParticle",1000); | |
544 | if (fParticleMap) { | |
545 | fParticleMap->Clear(); | |
546 | if (size>0) fParticleMap->Expand(size);} | |
547 | else | |
548 | fParticleMap = new TObjArray(size); | |
9e1a0ddb | 549 | } |
550 | ||
551 | //_____________________________________________________________________________ | |
e2afb3b6 | 552 | void AliStack::SetHighWaterMark(Int_t) |
9e1a0ddb | 553 | { |
554 | // | |
555 | // Set high water mark for last track in event | |
556 | // | |
557 | ||
558 | fHgwmk = fNtrack-1; | |
559 | fCurrentPrimary=fHgwmk; | |
560 | ||
561 | // Set also number of primary tracks | |
562 | fNprimary = fHgwmk+1; | |
563 | fNtrack = fHgwmk+1; | |
564 | } | |
565 | ||
566 | //_____________________________________________________________________________ | |
567 | TParticle* AliStack::Particle(Int_t i) | |
568 | { | |
569 | // | |
570 | // Return particle with specified ID | |
571 | ||
da2af24c | 572 | //PH if(!(*fParticleMap)[i]) { |
573 | if(!fParticleMap->At(i)) { | |
911a3148 | 574 | Int_t nentries = fParticles->GetEntriesFast(); |
9e1a0ddb | 575 | // algorithmic way of getting entry index |
576 | // (primary particles are filled after secondaries) | |
e94530da | 577 | Int_t entry = TreeKEntry(i); |
9e1a0ddb | 578 | // check whether algorithmic way and |
579 | // and the fParticleFileMap[i] give the same; | |
580 | // give the fatal error if not | |
581 | if (entry != fParticleFileMap[i]) { | |
582 | Fatal("Particle", | |
583 | "!! The algorithmic way and map are different: !!\n entry: %d map: %d", | |
584 | entry, fParticleFileMap[i]); | |
585 | } | |
586 | ||
88cb7938 | 587 | TreeK()->GetEntry(entry); |
9e1a0ddb | 588 | new ((*fParticles)[nentries]) TParticle(*fParticleBuffer); |
589 | fParticleMap->AddAt((*fParticles)[nentries],i); | |
590 | } | |
e2afb3b6 | 591 | //PH return dynamic_cast<TParticle *>((*fParticleMap)[i]); |
592 | return dynamic_cast<TParticle*>(fParticleMap->At(i)); | |
9e1a0ddb | 593 | } |
594 | ||
e94530da | 595 | //_____________________________________________________________________________ |
596 | TParticle* AliStack::ParticleFromTreeK(Int_t id) const | |
597 | { | |
598 | // | |
599 | // return pointer to TParticle with label id | |
600 | // | |
601 | Int_t entry; | |
602 | if ((entry = TreeKEntry(id)) < 0) return 0; | |
603 | if (fTreeK->GetEntry(entry)<=0) return 0; | |
604 | return fParticleBuffer; | |
605 | } | |
606 | ||
607 | //_____________________________________________________________________________ | |
608 | Int_t AliStack::TreeKEntry(Int_t id) const | |
609 | { | |
610 | // | |
611 | // return entry number in the TreeK for particle with label id | |
612 | // return negative number if label>fNtrack | |
613 | // | |
614 | Int_t entry; | |
615 | if (id<fNprimary) | |
616 | entry = id+fNtrack-fNprimary; | |
617 | else | |
618 | entry = id-fNprimary; | |
619 | return entry; | |
620 | } | |
621 | ||
5d8718b8 | 622 | //_____________________________________________________________________________ |
642f15cf | 623 | Int_t AliStack::GetCurrentParentTrackNumber() const |
5d8718b8 | 624 | { |
625 | // | |
626 | // Return number of the parent of the current track | |
627 | // | |
628 | ||
629 | TParticle* current = (TParticle*)fParticleMap->At(fCurrent); | |
630 | ||
631 | if (current) | |
632 | return current->GetFirstMother(); | |
633 | else { | |
642f15cf | 634 | Warning("GetCurrentParentTrackNumber", "Current track not found in the stack"); |
5d8718b8 | 635 | return -1; |
636 | } | |
637 | } | |
638 | ||
9e1a0ddb | 639 | //_____________________________________________________________________________ |
f5f55563 | 640 | Int_t AliStack::GetPrimary(Int_t id) |
9e1a0ddb | 641 | { |
642 | // | |
643 | // Return number of primary that has generated track | |
644 | // | |
645 | ||
646 | int current, parent; | |
9e1a0ddb | 647 | // |
648 | parent=id; | |
649 | while (1) { | |
650 | current=parent; | |
f5f55563 | 651 | parent=Particle(current)->GetFirstMother(); |
9e1a0ddb | 652 | if(parent<0) return current; |
653 | } | |
654 | } | |
655 | ||
656 | //_____________________________________________________________________________ | |
657 | void AliStack::DumpPart (Int_t i) const | |
658 | { | |
659 | // | |
660 | // Dumps particle i in the stack | |
661 | // | |
662 | ||
e2afb3b6 | 663 | //PH dynamic_cast<TParticle*>((*fParticleMap)[i])->Print(); |
664 | dynamic_cast<TParticle*>(fParticleMap->At(i))->Print(); | |
9e1a0ddb | 665 | } |
666 | ||
667 | //_____________________________________________________________________________ | |
668 | void AliStack::DumpPStack () | |
669 | { | |
670 | // | |
671 | // Dumps the particle stack | |
672 | // | |
673 | ||
3ab6f951 | 674 | Int_t i; |
675 | ||
88cb7938 | 676 | printf("\n\n=======================================================================\n"); |
3ab6f951 | 677 | for (i=0;i<fNtrack;i++) |
9e1a0ddb | 678 | { |
679 | TParticle* particle = Particle(i); | |
680 | if (particle) { | |
681 | printf("-> %d ",i); particle->Print(); | |
682 | printf("--------------------------------------------------------------\n"); | |
683 | } | |
684 | else | |
685 | Warning("DumpPStack", "No particle with id %d.", i); | |
686 | } | |
687 | ||
88cb7938 | 688 | printf("\n=======================================================================\n\n"); |
9e1a0ddb | 689 | |
690 | // print particle file map | |
691 | printf("\nParticle file map: \n"); | |
3ab6f951 | 692 | for (i=0; i<fNtrack; i++) |
9e1a0ddb | 693 | printf(" %d th entry: %d \n",i,fParticleFileMap[i]); |
694 | } | |
695 | ||
696 | ||
697 | //_____________________________________________________________________________ | |
698 | void AliStack::DumpLoadedStack() const | |
699 | { | |
700 | // | |
701 | // Dumps the particle in the stack | |
702 | // that are loaded in memory. | |
703 | // | |
704 | ||
705 | TObjArray &particles = *fParticleMap; | |
706 | printf( | |
707 | "\n\n=======================================================================\n"); | |
708 | for (Int_t i=0;i<fNtrack;i++) | |
709 | { | |
e2afb3b6 | 710 | TParticle* particle = dynamic_cast<TParticle*>(particles[i]); |
9e1a0ddb | 711 | if (particle) { |
712 | printf("-> %d ",i); particle->Print(); | |
713 | printf("--------------------------------------------------------------\n"); | |
714 | } | |
715 | else { | |
716 | printf("-> %d Particle not loaded.\n",i); | |
717 | printf("--------------------------------------------------------------\n"); | |
718 | } | |
719 | } | |
720 | printf( | |
721 | "\n=======================================================================\n\n"); | |
722 | } | |
723 | ||
724 | // | |
725 | // protected methods | |
726 | // | |
727 | ||
728 | //_____________________________________________________________________________ | |
729 | void AliStack::CleanParents() | |
730 | { | |
731 | // | |
732 | // Clean particles stack | |
733 | // Set parent/daughter relations | |
734 | // | |
735 | ||
736 | TObjArray &particles = *fParticleMap; | |
737 | TParticle *part; | |
738 | int i; | |
739 | for(i=0; i<fHgwmk+1; i++) { | |
e2afb3b6 | 740 | part = dynamic_cast<TParticle*>(particles.At(i)); |
9e1a0ddb | 741 | if(part) if(!part->TestBit(kDaughtersBit)) { |
742 | part->SetFirstDaughter(-1); | |
743 | part->SetLastDaughter(-1); | |
744 | } | |
745 | } | |
746 | } | |
747 | ||
748 | //_____________________________________________________________________________ | |
749 | TParticle* AliStack::GetNextParticle() | |
750 | { | |
751 | // | |
752 | // Return next particle from stack of particles | |
753 | // | |
754 | ||
755 | TParticle* particle = 0; | |
756 | ||
757 | // search secondaries | |
758 | //for(Int_t i=fNtrack-1; i>=0; i--) { | |
759 | for(Int_t i=fNtrack-1; i>fHgwmk; i--) { | |
e2afb3b6 | 760 | particle = dynamic_cast<TParticle*>(fParticleMap->At(i)); |
9e1a0ddb | 761 | if ((particle) && (!particle->TestBit(kDoneBit))) { |
762 | fCurrent=i; | |
9e1a0ddb | 763 | return particle; |
764 | } | |
765 | } | |
766 | ||
767 | // take next primary if all secondaries were done | |
768 | while (fCurrentPrimary>=0) { | |
769 | fCurrent = fCurrentPrimary; | |
e2afb3b6 | 770 | particle = dynamic_cast<TParticle*>(fParticleMap->At(fCurrentPrimary--)); |
9e1a0ddb | 771 | if ((particle) && (!particle->TestBit(kDoneBit))) { |
9e1a0ddb | 772 | return particle; |
773 | } | |
774 | } | |
775 | ||
776 | // nothing to be tracked | |
777 | fCurrent = -1; | |
9e1a0ddb | 778 | return particle; |
779 | } | |
88cb7938 | 780 | //__________________________________________________________________________________________ |
9e1a0ddb | 781 | |
88cb7938 | 782 | TTree* AliStack::TreeK() |
783 | { | |
784 | //returns TreeK | |
785 | if (fTreeK) | |
786 | { | |
787 | return fTreeK; | |
788 | } | |
789 | else | |
790 | { | |
791 | AliRunLoader *rl = AliRunLoader::GetRunLoader(fEventFolderName); | |
792 | if (rl == 0x0) | |
793 | { | |
794 | Fatal("TreeK","Can not get RunLoader from event folder named %s",fEventFolderName.Data()); | |
795 | return 0x0;//pro forma | |
796 | } | |
797 | fTreeK = rl->TreeK(); | |
798 | if ( fTreeK == 0x0) | |
799 | { | |
800 | Error("TreeK","Can not get TreeK from RL. Ev. Folder is %s",fEventFolderName.Data()); | |
801 | } | |
802 | else | |
803 | { | |
804 | ConnectTree(); | |
805 | } | |
806 | } | |
807 | return fTreeK;//never reached | |
808 | } | |
9e1a0ddb | 809 | //__________________________________________________________________________________________ |
88cb7938 | 810 | |
811 | void AliStack::ConnectTree() | |
9e1a0ddb | 812 | { |
813 | // | |
88cb7938 | 814 | // Creates branch for writing particles |
815 | // | |
816 | if (AliLoader::fgDebug) Info("ConnectTree","Connecting TreeK"); | |
817 | if (fTreeK == 0x0) | |
818 | { | |
819 | if (TreeK() == 0x0) | |
820 | { | |
821 | Fatal("ConnectTree","Parameter is NULL");//we don't like such a jokes | |
822 | return; | |
823 | } | |
824 | return;//in this case TreeK() calls back this method (ConnectTree) | |
825 | //tree after setting fTreeK, the rest was already executed | |
826 | //it is safe to return now | |
827 | } | |
828 | ||
829 | // Create a branch for particles | |
830 | ||
831 | if (AliLoader::fgDebug) | |
832 | Info("ConnectTree","Tree name is %s",fTreeK->GetName()); | |
833 | ||
834 | if (fTreeK->GetDirectory()) | |
835 | { | |
836 | if (AliLoader::fgDebug) | |
837 | Info("ConnectTree","and dir is %s",fTreeK->GetDirectory()->GetName()); | |
838 | } | |
839 | else | |
840 | Warning("ConnectTree","DIR IS NOT SET !!!"); | |
841 | ||
842 | TBranch *branch=fTreeK->GetBranch(AliRunLoader::fgkKineBranchName); | |
843 | if(branch == 0x0) | |
844 | { | |
845 | branch = fTreeK->Branch(AliRunLoader::fgkKineBranchName, "TParticle", &fParticleBuffer, 4000); | |
846 | if (AliLoader::fgDebug) Info("ConnectTree","Creating Branch in Tree"); | |
847 | } | |
848 | else | |
849 | { | |
850 | if (AliLoader::fgDebug) Info("ConnectTree","Branch Found in Tree"); | |
851 | branch->SetAddress(&fParticleBuffer); | |
852 | } | |
853 | if (branch->GetDirectory()) | |
854 | { | |
855 | if (AliLoader::fgDebug) | |
856 | Info("ConnectTree","Branch Dir Name is %s",branch->GetDirectory()->GetName()); | |
857 | } | |
858 | else | |
859 | Warning("ConnectTree","Branch Dir is NOT SET"); | |
9e1a0ddb | 860 | } |
88cb7938 | 861 | //__________________________________________________________________________________________ |
9e1a0ddb | 862 | |
88cb7938 | 863 | |
864 | void AliStack::BeginEvent() | |
9e1a0ddb | 865 | { |
866 | // start a new event | |
88cb7938 | 867 | Reset(); |
9e1a0ddb | 868 | } |
869 | ||
81694e6a | 870 | //_____________________________________________________________________________ |
9e1a0ddb | 871 | void AliStack::FinishRun() |
872 | { | |
873 | // Clean TreeK information | |
9e1a0ddb | 874 | } |
5d8718b8 | 875 | //_____________________________________________________________________________ |
88cb7938 | 876 | |
877 | Bool_t AliStack::GetEvent() | |
9e1a0ddb | 878 | { |
879 | // | |
880 | // Get new event from TreeK | |
ccf7a81f | 881 | |
9e1a0ddb | 882 | // Reset/Create the particle stack |
88cb7938 | 883 | fTreeK = 0x0; |
9e1a0ddb | 884 | |
88cb7938 | 885 | if (TreeK() == 0x0) //forces connecting |
886 | { | |
887 | Error("GetEvent","cannot find Kine Tree for current event\n"); | |
ccf7a81f | 888 | return kFALSE; |
88cb7938 | 889 | } |
ccf7a81f | 890 | |
88cb7938 | 891 | Int_t size = (Int_t)TreeK()->GetEntries(); |
9e1a0ddb | 892 | ResetArrays(size); |
ccf7a81f | 893 | return kTRUE; |
9e1a0ddb | 894 | } |
88cb7938 | 895 | //_____________________________________________________________________________ |
896 | ||
897 | void AliStack::SetEventFolderName(const char* foldname) | |
898 | { | |
899 | //Sets event folder name | |
900 | fEventFolderName = foldname; | |
901 | } |