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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 | ||
16 | /* | |
17 | $Log$ | |
f5f55563 | 18 | Revision 1.15 2001/09/04 15:10:37 hristov |
19 | Additional protection is included to avoid some problems using Hijing | |
20 | ||
1305ca2f | 21 | Revision 1.14 2001/08/30 09:44:06 hristov |
22 | VertexSource_t added to avoid the warnings | |
23 | ||
da2af24c | 24 | Revision 1.13 2001/08/29 13:31:42 morsch |
25 | Protection against (fTreeK == 0) in destructor. | |
26 | ||
cfb2cc9c | 27 | Revision 1.12 2001/07/27 13:03:13 hristov |
28 | Default Branch split level set to 99 | |
29 | ||
d0f40f23 | 30 | Revision 1.11 2001/07/27 12:34:20 jchudoba |
31 | remove the dummy argument in GetEvent method | |
32 | ||
cec14bc5 | 33 | Revision 1.10 2001/07/20 10:13:54 morsch |
34 | In Particle(Int_t) use GetEntriesFast to speed up the procedure. | |
35 | ||
911a3148 | 36 | Revision 1.9 2001/07/03 08:10:57 hristov |
37 | J.Chudoba's changes merged correctly with the HEAD | |
38 | ||
d1750cff | 39 | Revision 1.6 2001/05/31 06:59:06 fca |
40 | Clean setting and deleting of fParticleBuffer | |
41 | ||
17f4a3d9 | 42 | Revision 1.5 2001/05/30 12:18:46 hristov |
43 | Loop variables declared once | |
44 | ||
3ab6f951 | 45 | Revision 1.4 2001/05/25 07:25:20 hristov |
46 | AliStack destructor corrected (I.Hrivnacova) | |
47 | ||
81694e6a | 48 | Revision 1.3 2001/05/22 14:33:16 hristov |
49 | Minor changes | |
50 | ||
ed54bf31 | 51 | Revision 1.2 2001/05/17 05:49:39 fca |
52 | Reset pointers to daughters | |
53 | ||
76969085 | 54 | Revision 1.1 2001/05/16 14:57:22 alibrary |
55 | New files for folders and Stack | |
56 | ||
9e1a0ddb | 57 | */ |
58 | ||
59 | /////////////////////////////////////////////////////////////////////////////// | |
60 | // // | |
61 | // Particles stack class | |
62 | // // | |
63 | /////////////////////////////////////////////////////////////////////////////// | |
64 | ||
65 | #include <iostream.h> | |
66 | ||
67 | #include <TObjArray.h> | |
68 | #include <TParticle.h> | |
69 | #include <TTree.h> | |
70 | #include <TFile.h> | |
71 | #include <TFolder.h> | |
72 | #include <TROOT.h> | |
73 | ||
74 | #include "AliStack.h" | |
75 | #include "AliRun.h" | |
76 | #include "AliModule.h" | |
77 | #include "AliHit.h" | |
78 | //#include "ETrackBits.h" | |
79 | ||
80 | ClassImp(AliStack) | |
81 | ||
82 | //_____________________________________________________________________________ | |
83 | AliStack::AliStack(Int_t size) | |
84 | { | |
85 | // | |
86 | // Constructor | |
87 | // | |
88 | ||
89 | // Create the particles arrays | |
90 | fParticles = new TClonesArray("TParticle",1000); | |
91 | fParticleMap = new TObjArray(size); | |
17f4a3d9 | 92 | fParticleBuffer = 0; |
ccf7a81f | 93 | fNtrack = 0; |
94 | fNprimary = 0; | |
9e1a0ddb | 95 | fCurrent = -1; |
96 | fCurrentPrimary = -1; | |
ccf7a81f | 97 | fTreeK = 0; |
9e1a0ddb | 98 | } |
99 | ||
100 | ||
101 | //_____________________________________________________________________________ | |
102 | AliStack::AliStack() | |
103 | { | |
104 | // | |
105 | // Default constructor | |
106 | // | |
107 | ||
108 | // Create the particles arrays | |
109 | fParticles = new TClonesArray("TParticle",1000); | |
110 | fParticleMap = new TObjArray(10000); | |
17f4a3d9 | 111 | fParticleBuffer = 0; |
ccf7a81f | 112 | fNtrack = 0; |
9e1a0ddb | 113 | fCurrent = -1; |
ccf7a81f | 114 | fNprimary = 0; |
9e1a0ddb | 115 | fCurrentPrimary = -1; |
ccf7a81f | 116 | fTreeK = 0; |
9e1a0ddb | 117 | } |
118 | ||
119 | ||
120 | //_____________________________________________________________________________ | |
121 | AliStack::~AliStack() | |
122 | { | |
123 | // | |
124 | // Destructor | |
125 | // | |
126 | ||
81694e6a | 127 | delete fParticleBuffer; |
9e1a0ddb | 128 | if (fParticles) { |
129 | fParticles->Delete(); | |
130 | delete fParticles; | |
131 | } | |
132 | delete fParticleMap; | |
cfb2cc9c | 133 | if (fTreeK) delete fTreeK; |
9e1a0ddb | 134 | } |
135 | ||
136 | // | |
137 | // public methods | |
138 | // | |
139 | ||
140 | //_____________________________________________________________________________ | |
141 | void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom, | |
142 | Float_t *vpos, Float_t *polar, Float_t tof, | |
143 | AliMCProcess mech, Int_t &ntr, Float_t weight) | |
144 | { | |
145 | // | |
146 | // Load a track on the stack | |
147 | // | |
148 | // done 0 if the track has to be transported | |
149 | // 1 if not | |
150 | // parent identifier of the parent track. -1 for a primary | |
151 | // pdg particle code | |
152 | // pmom momentum GeV/c | |
153 | // vpos position | |
154 | // polar polarisation | |
155 | // tof time of flight in seconds | |
156 | // mecha production mechanism | |
157 | // ntr on output the number of the track stored | |
158 | // | |
159 | ||
160 | Float_t mass; | |
161 | const Int_t kfirstdaughter=-1; | |
162 | const Int_t klastdaughter=-1; | |
163 | const Int_t kS=0; | |
164 | // const Float_t tlife=0; | |
165 | ||
166 | // | |
167 | // Here we get the static mass | |
168 | // For MC is ok, but a more sophisticated method could be necessary | |
169 | // if the calculated mass is required | |
170 | // also, this method is potentially dangerous if the mass | |
171 | // used in the MC is not the same of the PDG database | |
172 | // | |
173 | mass = TDatabasePDG::Instance()->GetParticle(pdg)->Mass(); | |
174 | Float_t e=TMath::Sqrt(mass*mass+pmom[0]*pmom[0]+ | |
175 | pmom[1]*pmom[1]+pmom[2]*pmom[2]); | |
176 | ||
ccf7a81f | 177 | // 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", |
178 | // mass,e,fNtrack,pdg,parent,done,vpos[0],vpos[1],vpos[2],pmom[0],pmom[1],pmom[2],kS); | |
179 | ||
9e1a0ddb | 180 | TClonesArray &particles = *fParticles; |
181 | TParticle* particle | |
182 | = new(particles[fLoadPoint++]) | |
183 | TParticle(pdg, kS, parent, -1, kfirstdaughter, klastdaughter, | |
184 | pmom[0], pmom[1], pmom[2], e, vpos[0], vpos[1], vpos[2], tof); | |
185 | particle->SetPolarisation(TVector3(polar[0],polar[1],polar[2])); | |
186 | particle->SetWeight(weight); | |
187 | particle->SetUniqueID(mech); | |
188 | if(!done) particle->SetBit(kDoneBit); | |
189 | ||
190 | ||
191 | // Declare that the daughter information is valid | |
192 | particle->SetBit(kDaughtersBit); | |
193 | // Add the particle to the stack | |
194 | fParticleMap->AddAtAndExpand(particle, fNtrack); | |
195 | ||
196 | if(parent>=0) { | |
197 | particle = (TParticle*) fParticleMap->At(parent); | |
1305ca2f | 198 | if (particle) { |
199 | particle->SetLastDaughter(fNtrack); | |
200 | if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack); | |
201 | } | |
202 | else { | |
203 | printf("Error in AliStack::SetTrack: Parent %d does not exist\n",parent); | |
204 | } | |
9e1a0ddb | 205 | } |
206 | else { | |
207 | // | |
208 | // This is a primary track. Set high water mark for this event | |
209 | fHgwmk = fNtrack; | |
210 | // | |
211 | // Set also number if primary tracks | |
212 | fNprimary = fHgwmk+1; | |
213 | fCurrentPrimary++; | |
214 | } | |
215 | ntr = fNtrack++; | |
216 | } | |
217 | ||
218 | //_____________________________________________________________________________ | |
219 | void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg, | |
220 | Double_t px, Double_t py, Double_t pz, Double_t e, | |
221 | Double_t vx, Double_t vy, Double_t vz, Double_t tof, | |
222 | Double_t polx, Double_t poly, Double_t polz, | |
223 | AliMCProcess mech, Int_t &ntr, Float_t weight) | |
224 | { | |
225 | // | |
226 | // Load a track on the stack | |
227 | // | |
228 | // done 0 if the track has to be transported | |
229 | // 1 if not | |
230 | // parent identifier of the parent track. -1 for a primary | |
231 | // pdg particle code | |
232 | // kS generation status code | |
233 | // px, py, pz momentum GeV/c | |
234 | // vx, vy, vz position | |
235 | // polar polarisation | |
236 | // tof time of flight in seconds | |
237 | // mech production mechanism | |
238 | // ntr on output the number of the track stored | |
239 | // | |
240 | // New method interface: | |
241 | // arguments were changed to be in correspondence with TParticle | |
242 | // constructor. | |
243 | // Note: the energy is not calculated from the static mass but | |
244 | // it is passed by argument e. | |
245 | ||
246 | ||
247 | const Int_t kS=0; | |
248 | const Int_t kFirstDaughter=-1; | |
249 | const Int_t kLastDaughter=-1; | |
250 | ||
251 | TClonesArray &particles = *fParticles; | |
252 | TParticle* particle | |
253 | = new(particles[fLoadPoint++]) | |
254 | TParticle(pdg, kS, parent, -1, kFirstDaughter, kLastDaughter, | |
255 | px, py, pz, e, vx, vy, vz, tof); | |
256 | ||
257 | particle->SetPolarisation(polx, poly, polz); | |
258 | particle->SetWeight(weight); | |
259 | particle->SetUniqueID(mech); | |
260 | ||
261 | if(!done) particle->SetBit(kDoneBit); | |
262 | ||
263 | // Declare that the daughter information is valid | |
264 | particle->SetBit(kDaughtersBit); | |
265 | // Add the particle to the stack | |
266 | fParticleMap->AddAtAndExpand(particle, fNtrack);//CHECK!! | |
267 | ||
268 | if(parent>=0) { | |
269 | particle = (TParticle*) fParticleMap->At(parent); | |
1305ca2f | 270 | if (particle) { |
271 | particle->SetLastDaughter(fNtrack); | |
272 | if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack); | |
273 | } | |
274 | else { | |
275 | printf("Error in AliStack::SetTrack: Parent %d does not exist\n",parent); | |
276 | } | |
9e1a0ddb | 277 | } |
278 | else { | |
279 | // | |
280 | // This is a primary track. Set high water mark for this event | |
281 | fHgwmk = fNtrack; | |
282 | // | |
283 | // Set also number if primary tracks | |
284 | fNprimary = fHgwmk+1; | |
285 | fCurrentPrimary++; | |
286 | } | |
287 | ntr = fNtrack++; | |
288 | } | |
289 | ||
290 | //_____________________________________________________________________________ | |
291 | void AliStack::GetNextTrack(Int_t &mtrack, Int_t &ipart, Float_t *pmom, | |
292 | Float_t &e, Float_t *vpos, Float_t *polar, | |
293 | Float_t &tof) | |
294 | { | |
295 | // | |
296 | // Return next track from stack of particles | |
297 | // | |
298 | ||
299 | ||
300 | TParticle* track = GetNextParticle(); | |
ccf7a81f | 301 | // cout << "GetNextTrack():" << fCurrent << fNprimary << endl; |
9e1a0ddb | 302 | |
303 | if(track) { | |
304 | mtrack=fCurrent; | |
305 | ipart=track->GetPdgCode(); | |
306 | pmom[0]=track->Px(); | |
307 | pmom[1]=track->Py(); | |
308 | pmom[2]=track->Pz(); | |
309 | e =track->Energy(); | |
310 | vpos[0]=track->Vx(); | |
311 | vpos[1]=track->Vy(); | |
312 | vpos[2]=track->Vz(); | |
313 | TVector3 pol; | |
314 | track->GetPolarisation(pol); | |
315 | polar[0]=pol.X(); | |
316 | polar[1]=pol.Y(); | |
317 | polar[2]=pol.Z(); | |
318 | tof=track->T(); | |
319 | track->SetBit(kDoneBit); | |
ccf7a81f | 320 | // cout << "Filled params" << endl; |
9e1a0ddb | 321 | } |
322 | else | |
323 | mtrack=-1; | |
324 | ||
325 | // | |
326 | // stop and start timer when we start a primary track | |
327 | Int_t nprimaries = fNprimary; | |
328 | if (fCurrent >= nprimaries) return; | |
329 | if (fCurrent < nprimaries-1) { | |
330 | fTimer.Stop(); | |
331 | track=(TParticle*) fParticleMap->At(fCurrent+1); | |
332 | // track->SetProcessTime(fTimer.CpuTime()); | |
333 | } | |
334 | fTimer.Start(); | |
335 | } | |
336 | ||
337 | ||
338 | //_____________________________________________________________________________ | |
339 | void AliStack::PurifyKine() | |
340 | { | |
341 | // | |
342 | // Compress kinematic tree keeping only flagged particles | |
343 | // and renaming the particle id's in all the hits | |
344 | // | |
345 | ||
346 | TObjArray &particles = *fParticleMap; | |
347 | int nkeep=fHgwmk+1, parent, i; | |
348 | TParticle *part, *father; | |
349 | TArrayI map(particles.GetLast()+1); | |
350 | ||
351 | // Save in Header total number of tracks before compression | |
352 | ||
353 | // If no tracks generated return now | |
354 | if(fHgwmk+1 == fNtrack) return; | |
355 | ||
9e1a0ddb | 356 | // First pass, invalid Daughter information |
357 | for(i=0; i<fNtrack; i++) { | |
358 | // Preset map, to be removed later | |
359 | if(i<=fHgwmk) map[i]=i ; | |
360 | else { | |
361 | map[i] = -99; | |
76969085 | 362 | if((part=(TParticle*) particles.At(i))) { |
363 | part->ResetBit(kDaughtersBit); | |
364 | part->SetFirstDaughter(-1); | |
365 | part->SetLastDaughter(-1); | |
366 | } | |
9e1a0ddb | 367 | } |
368 | } | |
369 | // Invalid daughter information for the parent of the first particle | |
370 | // generated. This may or may not be the current primary according to | |
371 | // whether decays have been recorded among the primaries | |
372 | part = (TParticle *)particles.At(fHgwmk+1); | |
373 | particles.At(part->GetFirstMother())->ResetBit(kDaughtersBit); | |
374 | // Second pass, build map between old and new numbering | |
375 | for(i=fHgwmk+1; i<fNtrack; i++) { | |
376 | if(particles.At(i)->TestBit(kKeepBit)) { | |
377 | ||
378 | // This particle has to be kept | |
379 | map[i]=nkeep; | |
380 | // If old and new are different, have to move the pointer | |
381 | if(i!=nkeep) particles[nkeep]=particles.At(i); | |
382 | part = (TParticle*) particles.At(nkeep); | |
383 | ||
384 | // as the parent is always *before*, it must be already | |
385 | // in place. This is what we are checking anyway! | |
386 | if((parent=part->GetFirstMother())>fHgwmk) | |
387 | if(map[parent]==-99) Fatal("PurifyKine","map[%d] = -99!\n",parent); | |
388 | else part->SetFirstMother(map[parent]); | |
389 | ||
390 | nkeep++; | |
391 | } | |
392 | } | |
393 | ||
394 | // Fix daughters information | |
395 | for (i=fHgwmk+1; i<nkeep; i++) { | |
396 | part = (TParticle *)particles.At(i); | |
397 | parent = part->GetFirstMother(); | |
398 | if(parent>=0) { | |
399 | father = (TParticle *)particles.At(parent); | |
400 | if(father->TestBit(kDaughtersBit)) { | |
401 | ||
402 | if(i<father->GetFirstDaughter()) father->SetFirstDaughter(i); | |
403 | if(i>father->GetLastDaughter()) father->SetLastDaughter(i); | |
404 | } else { | |
405 | // Initialise daughters info for first pass | |
406 | father->SetFirstDaughter(i); | |
407 | father->SetLastDaughter(i); | |
408 | father->SetBit(kDaughtersBit); | |
409 | } | |
410 | } | |
411 | } | |
412 | ||
413 | // Now loop on all registered hit lists | |
414 | TList* hitLists = gAlice->GetHitLists(); | |
415 | TIter next(hitLists); | |
416 | TCollection *hitList; | |
417 | while((hitList = (TCollection*)next())) { | |
418 | TIter nexthit(hitList); | |
419 | AliHit *hit; | |
420 | while((hit = (AliHit*)nexthit())) { | |
421 | hit->SetTrack(map[hit->GetTrack()]); | |
422 | } | |
423 | } | |
424 | ||
425 | // | |
426 | // This for detectors which have a special mapping mechanism | |
427 | // for hits, such as TPC and TRD | |
428 | // | |
429 | ||
430 | TObjArray* modules = gAlice->Modules(); | |
431 | TIter nextmod(modules); | |
432 | AliModule *detector; | |
433 | while((detector = (AliModule*)nextmod())) { | |
434 | detector->RemapTrackHitIDs(map.GetArray()); | |
435 | } | |
436 | ||
437 | // Now the output bit, from fHgwmk to nkeep we write everything and we erase | |
438 | if(nkeep>fParticleFileMap.GetSize()) fParticleFileMap.Set(Int_t (nkeep*1.5)); | |
439 | ||
440 | for (i=fHgwmk+1; i<nkeep; ++i) { | |
441 | fParticleBuffer = (TParticle*) particles.At(i); | |
442 | fParticleFileMap[i]=(Int_t) fTreeK->GetEntries(); | |
443 | fTreeK->Fill(); | |
17f4a3d9 | 444 | particles[i]=fParticleBuffer=0; |
9e1a0ddb | 445 | } |
446 | ||
447 | for (i=nkeep; i<fNtrack; ++i) particles[i]=0; | |
448 | ||
76969085 | 449 | Int_t toshrink = fNtrack-fHgwmk-1; |
9e1a0ddb | 450 | fLoadPoint-=toshrink; |
451 | for(i=fLoadPoint; i<fLoadPoint+toshrink; ++i) fParticles->RemoveAt(i); | |
452 | ||
453 | fNtrack=nkeep; | |
454 | fHgwmk=nkeep-1; | |
455 | // delete [] map; | |
456 | } | |
457 | ||
458 | //_____________________________________________________________________________ | |
459 | void AliStack::FinishEvent() | |
460 | { | |
461 | // | |
462 | // Write out the kinematics that was not yet filled | |
463 | // | |
464 | ||
465 | // Update event header | |
466 | ||
467 | ||
468 | if (!fTreeK) { | |
469 | // Fatal("FinishEvent", "No kinematics tree is defined."); | |
470 | // Don't panic this is a probably a lego run | |
471 | return; | |
472 | ||
473 | } | |
474 | ||
475 | CleanParents(); | |
476 | if(fTreeK->GetEntries() ==0) { | |
477 | // set the fParticleFileMap size for the first time | |
478 | fParticleFileMap.Set(fHgwmk+1); | |
479 | } | |
480 | ||
481 | Bool_t allFilled = kFALSE; | |
482 | TObject *part; | |
483 | for(Int_t i=0; i<fHgwmk+1; ++i) | |
484 | if((part=fParticleMap->At(i))) { | |
485 | fParticleBuffer = (TParticle*) part; | |
486 | fParticleFileMap[i]= (Int_t) fTreeK->GetEntries(); | |
487 | fTreeK->Fill(); | |
da2af24c | 488 | //PH (*fParticleMap)[i]=fParticleBuffer=0; |
489 | fParticleBuffer=0; | |
490 | fParticleMap->AddAt(0,i); | |
9e1a0ddb | 491 | |
492 | // When all primaries were filled no particle!=0 | |
493 | // should be left => to be removed later. | |
494 | if (allFilled) printf("Why != 0 part # %d?\n",i); | |
495 | } | |
496 | else { | |
497 | // // printf("Why = 0 part # %d?\n",i); => We know. | |
498 | // break; | |
499 | // we don't break now in order to be sure there is no | |
500 | // particle !=0 left. | |
501 | // To be removed later and replaced with break. | |
502 | if(!allFilled) allFilled = kTRUE; | |
503 | } | |
ccf7a81f | 504 | // cout << "Nof particles: " << fNtrack << endl; |
9e1a0ddb | 505 | //Reset(); |
506 | } | |
507 | ||
508 | //_____________________________________________________________________________ | |
509 | void AliStack::FlagTrack(Int_t track) | |
510 | { | |
511 | // | |
512 | // Flags a track and all its family tree to be kept | |
513 | // | |
514 | ||
515 | TParticle *particle; | |
516 | ||
517 | Int_t curr=track; | |
518 | while(1) { | |
519 | particle=(TParticle*)fParticleMap->At(curr); | |
520 | ||
521 | // If the particle is flagged the three from here upward is saved already | |
522 | if(particle->TestBit(kKeepBit)) return; | |
523 | ||
524 | // Save this particle | |
525 | particle->SetBit(kKeepBit); | |
526 | ||
527 | // Move to father if any | |
528 | if((curr=particle->GetFirstMother())==-1) return; | |
529 | } | |
530 | } | |
531 | ||
532 | //_____________________________________________________________________________ | |
ed54bf31 | 533 | void AliStack::KeepTrack(Int_t track) |
9e1a0ddb | 534 | { |
535 | // | |
536 | // Flags a track to be kept | |
537 | // | |
538 | ||
539 | fParticleMap->At(track)->SetBit(kKeepBit); | |
540 | } | |
541 | ||
542 | //_____________________________________________________________________________ | |
543 | void AliStack::Reset(Int_t size) | |
544 | { | |
545 | // | |
546 | // Resets stack | |
547 | // | |
548 | ||
549 | fNtrack=0; | |
550 | fNprimary=0; | |
551 | fHgwmk=0; | |
552 | fLoadPoint=0; | |
553 | fCurrent = -1; | |
554 | ResetArrays(size); | |
555 | } | |
556 | ||
557 | //_____________________________________________________________________________ | |
558 | void AliStack::ResetArrays(Int_t size) | |
559 | { | |
560 | // | |
561 | // Resets stack arrays | |
562 | // | |
563 | ||
564 | fParticles->Clear(); | |
565 | fParticleMap->Clear(); | |
566 | if (size>0) fParticleMap->Expand(size); | |
567 | } | |
568 | ||
569 | //_____________________________________________________________________________ | |
ed54bf31 | 570 | void AliStack::SetHighWaterMark(Int_t nt) |
9e1a0ddb | 571 | { |
572 | // | |
573 | // Set high water mark for last track in event | |
574 | // | |
575 | ||
576 | fHgwmk = fNtrack-1; | |
577 | fCurrentPrimary=fHgwmk; | |
578 | ||
579 | // Set also number of primary tracks | |
580 | fNprimary = fHgwmk+1; | |
581 | fNtrack = fHgwmk+1; | |
582 | } | |
583 | ||
584 | //_____________________________________________________________________________ | |
585 | TParticle* AliStack::Particle(Int_t i) | |
586 | { | |
587 | // | |
588 | // Return particle with specified ID | |
589 | ||
da2af24c | 590 | //PH if(!(*fParticleMap)[i]) { |
591 | if(!fParticleMap->At(i)) { | |
911a3148 | 592 | Int_t nentries = fParticles->GetEntriesFast(); |
9e1a0ddb | 593 | // algorithmic way of getting entry index |
594 | // (primary particles are filled after secondaries) | |
595 | Int_t entry; | |
596 | if (i<fNprimary) | |
597 | entry = i+fNtrack-fNprimary; | |
598 | else | |
599 | entry = i-fNprimary; | |
600 | // check whether algorithmic way and | |
601 | // and the fParticleFileMap[i] give the same; | |
602 | // give the fatal error if not | |
603 | if (entry != fParticleFileMap[i]) { | |
604 | Fatal("Particle", | |
605 | "!! The algorithmic way and map are different: !!\n entry: %d map: %d", | |
606 | entry, fParticleFileMap[i]); | |
607 | } | |
608 | ||
609 | fTreeK->GetEntry(entry); | |
610 | new ((*fParticles)[nentries]) TParticle(*fParticleBuffer); | |
611 | fParticleMap->AddAt((*fParticles)[nentries],i); | |
612 | } | |
da2af24c | 613 | //PH return (TParticle *) (*fParticleMap)[i]; |
614 | return (TParticle *) fParticleMap->At(i); | |
9e1a0ddb | 615 | } |
616 | ||
617 | //_____________________________________________________________________________ | |
f5f55563 | 618 | Int_t AliStack::GetPrimary(Int_t id) |
9e1a0ddb | 619 | { |
620 | // | |
621 | // Return number of primary that has generated track | |
622 | // | |
623 | ||
624 | int current, parent; | |
9e1a0ddb | 625 | // |
626 | parent=id; | |
627 | while (1) { | |
628 | current=parent; | |
f5f55563 | 629 | parent=Particle(current)->GetFirstMother(); |
9e1a0ddb | 630 | if(parent<0) return current; |
631 | } | |
632 | } | |
633 | ||
634 | //_____________________________________________________________________________ | |
635 | void AliStack::DumpPart (Int_t i) const | |
636 | { | |
637 | // | |
638 | // Dumps particle i in the stack | |
639 | // | |
640 | ||
da2af24c | 641 | //PH ((TParticle*) (*fParticleMap)[i])->Print(); |
642 | ((TParticle*) fParticleMap->At(i))->Print(); | |
9e1a0ddb | 643 | } |
644 | ||
645 | //_____________________________________________________________________________ | |
646 | void AliStack::DumpPStack () | |
647 | { | |
648 | // | |
649 | // Dumps the particle stack | |
650 | // | |
651 | ||
3ab6f951 | 652 | Int_t i; |
653 | ||
9e1a0ddb | 654 | printf( |
655 | "\n\n=======================================================================\n"); | |
3ab6f951 | 656 | for (i=0;i<fNtrack;i++) |
9e1a0ddb | 657 | { |
658 | TParticle* particle = Particle(i); | |
659 | if (particle) { | |
660 | printf("-> %d ",i); particle->Print(); | |
661 | printf("--------------------------------------------------------------\n"); | |
662 | } | |
663 | else | |
664 | Warning("DumpPStack", "No particle with id %d.", i); | |
665 | } | |
666 | ||
667 | printf( | |
668 | "\n=======================================================================\n\n"); | |
669 | ||
670 | // print particle file map | |
671 | printf("\nParticle file map: \n"); | |
3ab6f951 | 672 | for (i=0; i<fNtrack; i++) |
9e1a0ddb | 673 | printf(" %d th entry: %d \n",i,fParticleFileMap[i]); |
674 | } | |
675 | ||
676 | ||
677 | //_____________________________________________________________________________ | |
678 | void AliStack::DumpLoadedStack() const | |
679 | { | |
680 | // | |
681 | // Dumps the particle in the stack | |
682 | // that are loaded in memory. | |
683 | // | |
684 | ||
685 | TObjArray &particles = *fParticleMap; | |
686 | printf( | |
687 | "\n\n=======================================================================\n"); | |
688 | for (Int_t i=0;i<fNtrack;i++) | |
689 | { | |
690 | TParticle* particle = (TParticle*) particles[i]; | |
691 | if (particle) { | |
692 | printf("-> %d ",i); particle->Print(); | |
693 | printf("--------------------------------------------------------------\n"); | |
694 | } | |
695 | else { | |
696 | printf("-> %d Particle not loaded.\n",i); | |
697 | printf("--------------------------------------------------------------\n"); | |
698 | } | |
699 | } | |
700 | printf( | |
701 | "\n=======================================================================\n\n"); | |
702 | } | |
703 | ||
704 | // | |
705 | // protected methods | |
706 | // | |
707 | ||
708 | //_____________________________________________________________________________ | |
709 | void AliStack::CleanParents() | |
710 | { | |
711 | // | |
712 | // Clean particles stack | |
713 | // Set parent/daughter relations | |
714 | // | |
715 | ||
716 | TObjArray &particles = *fParticleMap; | |
717 | TParticle *part; | |
718 | int i; | |
719 | for(i=0; i<fHgwmk+1; i++) { | |
720 | part = (TParticle *)particles.At(i); | |
721 | if(part) if(!part->TestBit(kDaughtersBit)) { | |
722 | part->SetFirstDaughter(-1); | |
723 | part->SetLastDaughter(-1); | |
724 | } | |
725 | } | |
726 | } | |
727 | ||
728 | //_____________________________________________________________________________ | |
729 | TParticle* AliStack::GetNextParticle() | |
730 | { | |
731 | // | |
732 | // Return next particle from stack of particles | |
733 | // | |
734 | ||
735 | TParticle* particle = 0; | |
736 | ||
737 | // search secondaries | |
738 | //for(Int_t i=fNtrack-1; i>=0; i--) { | |
739 | for(Int_t i=fNtrack-1; i>fHgwmk; i--) { | |
740 | particle = (TParticle*) fParticleMap->At(i); | |
741 | if ((particle) && (!particle->TestBit(kDoneBit))) { | |
742 | fCurrent=i; | |
743 | //cout << "GetNextParticle() - secondary " | |
744 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
745 | return particle; | |
746 | } | |
747 | } | |
748 | ||
749 | // take next primary if all secondaries were done | |
750 | while (fCurrentPrimary>=0) { | |
751 | fCurrent = fCurrentPrimary; | |
752 | particle = (TParticle*) fParticleMap->At(fCurrentPrimary--); | |
753 | if ((particle) && (!particle->TestBit(kDoneBit))) { | |
754 | //cout << "GetNextParticle() - primary " | |
755 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
756 | return particle; | |
757 | } | |
758 | } | |
759 | ||
760 | // nothing to be tracked | |
761 | fCurrent = -1; | |
762 | //cout << "GetNextParticle() - none " | |
763 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
764 | return particle; | |
765 | } | |
766 | ||
767 | //__________________________________________________________________________________________ | |
768 | void AliStack::MakeTree(Int_t event, const char *file) | |
769 | { | |
770 | // | |
771 | // Make Kine tree and creates branch for writing particles | |
772 | // | |
773 | TBranch *branch=0; | |
774 | // Make Kinematics Tree | |
775 | char hname[30]; | |
ccf7a81f | 776 | // printf("\n MakeTree called %d", event); |
9e1a0ddb | 777 | if (!fTreeK) { |
778 | sprintf(hname,"TreeK%d",event); | |
779 | fTreeK = new TTree(hname,"Kinematics"); | |
780 | // Create a branch for particles | |
d0f40f23 | 781 | branch = fTreeK->Branch("Particles", "TParticle", &fParticleBuffer, 4000); |
9e1a0ddb | 782 | fTreeK->Write(0,TObject::kOverwrite); |
783 | } | |
784 | } | |
785 | ||
81694e6a | 786 | //_____________________________________________________________________________ |
9e1a0ddb | 787 | void AliStack::BeginEvent(Int_t event) |
788 | { | |
789 | // start a new event | |
790 | // | |
791 | // | |
792 | fNprimary = 0; | |
793 | fNtrack = 0; | |
794 | ||
795 | char hname[30]; | |
796 | if(fTreeK) { | |
797 | fTreeK->Reset(); | |
798 | sprintf(hname,"TreeK%d",event); | |
799 | fTreeK->SetName(hname); | |
800 | } | |
801 | } | |
802 | ||
81694e6a | 803 | //_____________________________________________________________________________ |
9e1a0ddb | 804 | void AliStack::FinishRun() |
805 | { | |
806 | // Clean TreeK information | |
807 | if (fTreeK) { | |
808 | delete fTreeK; fTreeK = 0; | |
809 | } | |
810 | } | |
811 | ||
81694e6a | 812 | //_____________________________________________________________________________ |
cec14bc5 | 813 | Bool_t AliStack::GetEvent(Int_t event) |
9e1a0ddb | 814 | { |
815 | // | |
816 | // Get new event from TreeK | |
ccf7a81f | 817 | |
9e1a0ddb | 818 | // Reset/Create the particle stack |
819 | if (fTreeK) delete fTreeK; | |
820 | ||
821 | // Get Kine Tree from file | |
822 | char treeName[20]; | |
823 | sprintf(treeName,"TreeK%d",event); | |
824 | fTreeK = (TTree*)gDirectory->Get(treeName); | |
825 | ||
ccf7a81f | 826 | if (fTreeK) |
827 | fTreeK->SetBranchAddress("Particles", &fParticleBuffer); | |
828 | else { | |
9e1a0ddb | 829 | Error("GetEvent","cannot find Kine Tree for event:%d\n",event); |
ccf7a81f | 830 | return kFALSE; |
831 | } | |
832 | // printf("\n primaries %d", fNprimary); | |
833 | // printf("\n tracks %d", fNtrack); | |
834 | ||
9e1a0ddb | 835 | Int_t size = (Int_t)fTreeK->GetEntries(); |
836 | ResetArrays(size); | |
ccf7a81f | 837 | return kTRUE; |
9e1a0ddb | 838 | } |
ccf7a81f | 839 | |
840 | //---------------------------------------------------------------------- |