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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 | $Log$ | |
47c8bcbe | 18 | Revision 1.18 2002/02/20 16:14:41 hristov |
19 | fParticleBuffer points to object which doesn't belong to AliStack, do not delete it (J.Chudoba) | |
20 | ||
ba9938e6 | 21 | Revision 1.17 2001/12/05 08:51:56 hristov |
22 | The default constructor now creates no objects (thanks to r.Brun). Some corrections required by the previous changes. | |
23 | ||
be3380a3 | 24 | Revision 1.16 2001/11/20 09:27:55 hristov |
25 | Possibility to investigate a primary of not yet loaded particle (I.Hrivnacova) | |
26 | ||
f5f55563 | 27 | Revision 1.15 2001/09/04 15:10:37 hristov |
28 | Additional protection is included to avoid some problems using Hijing | |
29 | ||
1305ca2f | 30 | Revision 1.14 2001/08/30 09:44:06 hristov |
31 | VertexSource_t added to avoid the warnings | |
32 | ||
da2af24c | 33 | Revision 1.13 2001/08/29 13:31:42 morsch |
34 | Protection against (fTreeK == 0) in destructor. | |
35 | ||
cfb2cc9c | 36 | Revision 1.12 2001/07/27 13:03:13 hristov |
37 | Default Branch split level set to 99 | |
38 | ||
d0f40f23 | 39 | Revision 1.11 2001/07/27 12:34:20 jchudoba |
40 | remove the dummy argument in GetEvent method | |
41 | ||
cec14bc5 | 42 | Revision 1.10 2001/07/20 10:13:54 morsch |
43 | In Particle(Int_t) use GetEntriesFast to speed up the procedure. | |
44 | ||
911a3148 | 45 | Revision 1.9 2001/07/03 08:10:57 hristov |
46 | J.Chudoba's changes merged correctly with the HEAD | |
47 | ||
d1750cff | 48 | Revision 1.6 2001/05/31 06:59:06 fca |
49 | Clean setting and deleting of fParticleBuffer | |
50 | ||
17f4a3d9 | 51 | Revision 1.5 2001/05/30 12:18:46 hristov |
52 | Loop variables declared once | |
53 | ||
3ab6f951 | 54 | Revision 1.4 2001/05/25 07:25:20 hristov |
55 | AliStack destructor corrected (I.Hrivnacova) | |
56 | ||
81694e6a | 57 | Revision 1.3 2001/05/22 14:33:16 hristov |
58 | Minor changes | |
59 | ||
ed54bf31 | 60 | Revision 1.2 2001/05/17 05:49:39 fca |
61 | Reset pointers to daughters | |
62 | ||
76969085 | 63 | Revision 1.1 2001/05/16 14:57:22 alibrary |
64 | New files for folders and Stack | |
65 | ||
9e1a0ddb | 66 | */ |
67 | ||
68 | /////////////////////////////////////////////////////////////////////////////// | |
69 | // // | |
70 | // Particles stack class | |
71 | // // | |
72 | /////////////////////////////////////////////////////////////////////////////// | |
73 | ||
74 | #include <iostream.h> | |
75 | ||
76 | #include <TObjArray.h> | |
77 | #include <TParticle.h> | |
78 | #include <TTree.h> | |
79 | #include <TFile.h> | |
80 | #include <TFolder.h> | |
81 | #include <TROOT.h> | |
82 | ||
83 | #include "AliStack.h" | |
84 | #include "AliRun.h" | |
85 | #include "AliModule.h" | |
86 | #include "AliHit.h" | |
87 | //#include "ETrackBits.h" | |
88 | ||
89 | ClassImp(AliStack) | |
90 | ||
91 | //_____________________________________________________________________________ | |
92 | AliStack::AliStack(Int_t size) | |
93 | { | |
94 | // | |
95 | // Constructor | |
96 | // | |
97 | ||
98 | // Create the particles arrays | |
99 | fParticles = new TClonesArray("TParticle",1000); | |
100 | fParticleMap = new TObjArray(size); | |
17f4a3d9 | 101 | fParticleBuffer = 0; |
ccf7a81f | 102 | fNtrack = 0; |
103 | fNprimary = 0; | |
9e1a0ddb | 104 | fCurrent = -1; |
105 | fCurrentPrimary = -1; | |
ccf7a81f | 106 | fTreeK = 0; |
9e1a0ddb | 107 | } |
108 | ||
109 | ||
110 | //_____________________________________________________________________________ | |
111 | AliStack::AliStack() | |
112 | { | |
113 | // | |
114 | // Default constructor | |
115 | // | |
116 | ||
117 | // Create the particles arrays | |
be3380a3 | 118 | fParticles = 0; |
119 | fParticleMap = 0; | |
17f4a3d9 | 120 | fParticleBuffer = 0; |
ccf7a81f | 121 | fNtrack = 0; |
9e1a0ddb | 122 | fCurrent = -1; |
ccf7a81f | 123 | fNprimary = 0; |
9e1a0ddb | 124 | fCurrentPrimary = -1; |
ccf7a81f | 125 | fTreeK = 0; |
9e1a0ddb | 126 | } |
127 | ||
128 | ||
129 | //_____________________________________________________________________________ | |
130 | AliStack::~AliStack() | |
131 | { | |
132 | // | |
133 | // Destructor | |
134 | // | |
135 | ||
136 | if (fParticles) { | |
137 | fParticles->Delete(); | |
138 | delete fParticles; | |
139 | } | |
140 | delete fParticleMap; | |
cfb2cc9c | 141 | if (fTreeK) delete fTreeK; |
9e1a0ddb | 142 | } |
143 | ||
144 | // | |
145 | // public methods | |
146 | // | |
147 | ||
148 | //_____________________________________________________________________________ | |
149 | void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom, | |
150 | Float_t *vpos, Float_t *polar, Float_t tof, | |
47c8bcbe | 151 | AliMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) |
9e1a0ddb | 152 | { |
153 | // | |
154 | // Load a track on the stack | |
155 | // | |
156 | // done 0 if the track has to be transported | |
157 | // 1 if not | |
158 | // parent identifier of the parent track. -1 for a primary | |
159 | // pdg particle code | |
160 | // pmom momentum GeV/c | |
161 | // vpos position | |
162 | // polar polarisation | |
163 | // tof time of flight in seconds | |
164 | // mecha production mechanism | |
165 | // ntr on output the number of the track stored | |
166 | // | |
167 | ||
168 | Float_t mass; | |
169 | const Int_t kfirstdaughter=-1; | |
170 | const Int_t klastdaughter=-1; | |
9e1a0ddb | 171 | // const Float_t tlife=0; |
172 | ||
173 | // | |
174 | // Here we get the static mass | |
175 | // For MC is ok, but a more sophisticated method could be necessary | |
176 | // if the calculated mass is required | |
177 | // also, this method is potentially dangerous if the mass | |
178 | // used in the MC is not the same of the PDG database | |
179 | // | |
180 | mass = TDatabasePDG::Instance()->GetParticle(pdg)->Mass(); | |
181 | Float_t e=TMath::Sqrt(mass*mass+pmom[0]*pmom[0]+ | |
182 | pmom[1]*pmom[1]+pmom[2]*pmom[2]); | |
183 | ||
ccf7a81f | 184 | // 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", |
185 | // mass,e,fNtrack,pdg,parent,done,vpos[0],vpos[1],vpos[2],pmom[0],pmom[1],pmom[2],kS); | |
186 | ||
9e1a0ddb | 187 | TClonesArray &particles = *fParticles; |
188 | TParticle* particle | |
189 | = new(particles[fLoadPoint++]) | |
47c8bcbe | 190 | TParticle(pdg, is, parent, -1, kfirstdaughter, klastdaughter, |
9e1a0ddb | 191 | pmom[0], pmom[1], pmom[2], e, vpos[0], vpos[1], vpos[2], tof); |
192 | particle->SetPolarisation(TVector3(polar[0],polar[1],polar[2])); | |
193 | particle->SetWeight(weight); | |
194 | particle->SetUniqueID(mech); | |
195 | if(!done) particle->SetBit(kDoneBit); | |
196 | ||
197 | ||
198 | // Declare that the daughter information is valid | |
199 | particle->SetBit(kDaughtersBit); | |
200 | // Add the particle to the stack | |
201 | fParticleMap->AddAtAndExpand(particle, fNtrack); | |
202 | ||
203 | if(parent>=0) { | |
204 | particle = (TParticle*) fParticleMap->At(parent); | |
1305ca2f | 205 | if (particle) { |
206 | particle->SetLastDaughter(fNtrack); | |
207 | if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack); | |
208 | } | |
209 | else { | |
210 | printf("Error in AliStack::SetTrack: Parent %d does not exist\n",parent); | |
211 | } | |
9e1a0ddb | 212 | } |
213 | else { | |
214 | // | |
215 | // This is a primary track. Set high water mark for this event | |
216 | fHgwmk = fNtrack; | |
217 | // | |
218 | // Set also number if primary tracks | |
219 | fNprimary = fHgwmk+1; | |
220 | fCurrentPrimary++; | |
221 | } | |
222 | ntr = fNtrack++; | |
223 | } | |
224 | ||
225 | //_____________________________________________________________________________ | |
226 | void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg, | |
227 | Double_t px, Double_t py, Double_t pz, Double_t e, | |
228 | Double_t vx, Double_t vy, Double_t vz, Double_t tof, | |
229 | Double_t polx, Double_t poly, Double_t polz, | |
47c8bcbe | 230 | AliMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) |
9e1a0ddb | 231 | { |
232 | // | |
233 | // Load a track on the stack | |
234 | // | |
235 | // done 0 if the track has to be transported | |
236 | // 1 if not | |
237 | // parent identifier of the parent track. -1 for a primary | |
238 | // pdg particle code | |
239 | // kS generation status code | |
240 | // px, py, pz momentum GeV/c | |
241 | // vx, vy, vz position | |
242 | // polar polarisation | |
243 | // tof time of flight in seconds | |
244 | // mech production mechanism | |
245 | // ntr on output the number of the track stored | |
246 | // | |
247 | // New method interface: | |
248 | // arguments were changed to be in correspondence with TParticle | |
249 | // constructor. | |
250 | // Note: the energy is not calculated from the static mass but | |
251 | // it is passed by argument e. | |
252 | ||
253 | ||
9e1a0ddb | 254 | const Int_t kFirstDaughter=-1; |
255 | const Int_t kLastDaughter=-1; | |
256 | ||
257 | TClonesArray &particles = *fParticles; | |
258 | TParticle* particle | |
259 | = new(particles[fLoadPoint++]) | |
47c8bcbe | 260 | TParticle(pdg, is, parent, -1, kFirstDaughter, kLastDaughter, |
9e1a0ddb | 261 | px, py, pz, e, vx, vy, vz, tof); |
262 | ||
263 | particle->SetPolarisation(polx, poly, polz); | |
264 | particle->SetWeight(weight); | |
265 | particle->SetUniqueID(mech); | |
266 | ||
267 | if(!done) particle->SetBit(kDoneBit); | |
268 | ||
269 | // Declare that the daughter information is valid | |
270 | particle->SetBit(kDaughtersBit); | |
271 | // Add the particle to the stack | |
272 | fParticleMap->AddAtAndExpand(particle, fNtrack);//CHECK!! | |
273 | ||
274 | if(parent>=0) { | |
275 | particle = (TParticle*) fParticleMap->At(parent); | |
1305ca2f | 276 | if (particle) { |
277 | particle->SetLastDaughter(fNtrack); | |
278 | if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack); | |
279 | } | |
280 | else { | |
281 | printf("Error in AliStack::SetTrack: Parent %d does not exist\n",parent); | |
282 | } | |
9e1a0ddb | 283 | } |
284 | else { | |
285 | // | |
286 | // This is a primary track. Set high water mark for this event | |
287 | fHgwmk = fNtrack; | |
288 | // | |
289 | // Set also number if primary tracks | |
290 | fNprimary = fHgwmk+1; | |
291 | fCurrentPrimary++; | |
292 | } | |
293 | ntr = fNtrack++; | |
294 | } | |
295 | ||
296 | //_____________________________________________________________________________ | |
297 | void AliStack::GetNextTrack(Int_t &mtrack, Int_t &ipart, Float_t *pmom, | |
298 | Float_t &e, Float_t *vpos, Float_t *polar, | |
299 | Float_t &tof) | |
300 | { | |
301 | // | |
302 | // Return next track from stack of particles | |
303 | // | |
304 | ||
305 | ||
306 | TParticle* track = GetNextParticle(); | |
ccf7a81f | 307 | // cout << "GetNextTrack():" << fCurrent << fNprimary << endl; |
9e1a0ddb | 308 | |
309 | if(track) { | |
310 | mtrack=fCurrent; | |
311 | ipart=track->GetPdgCode(); | |
312 | pmom[0]=track->Px(); | |
313 | pmom[1]=track->Py(); | |
314 | pmom[2]=track->Pz(); | |
315 | e =track->Energy(); | |
316 | vpos[0]=track->Vx(); | |
317 | vpos[1]=track->Vy(); | |
318 | vpos[2]=track->Vz(); | |
319 | TVector3 pol; | |
320 | track->GetPolarisation(pol); | |
321 | polar[0]=pol.X(); | |
322 | polar[1]=pol.Y(); | |
323 | polar[2]=pol.Z(); | |
324 | tof=track->T(); | |
325 | track->SetBit(kDoneBit); | |
ccf7a81f | 326 | // cout << "Filled params" << endl; |
9e1a0ddb | 327 | } |
328 | else | |
329 | mtrack=-1; | |
330 | ||
331 | // | |
332 | // stop and start timer when we start a primary track | |
333 | Int_t nprimaries = fNprimary; | |
334 | if (fCurrent >= nprimaries) return; | |
335 | if (fCurrent < nprimaries-1) { | |
336 | fTimer.Stop(); | |
337 | track=(TParticle*) fParticleMap->At(fCurrent+1); | |
338 | // track->SetProcessTime(fTimer.CpuTime()); | |
339 | } | |
340 | fTimer.Start(); | |
341 | } | |
342 | ||
343 | ||
344 | //_____________________________________________________________________________ | |
345 | void AliStack::PurifyKine() | |
346 | { | |
347 | // | |
348 | // Compress kinematic tree keeping only flagged particles | |
349 | // and renaming the particle id's in all the hits | |
350 | // | |
351 | ||
352 | TObjArray &particles = *fParticleMap; | |
353 | int nkeep=fHgwmk+1, parent, i; | |
354 | TParticle *part, *father; | |
355 | TArrayI map(particles.GetLast()+1); | |
356 | ||
357 | // Save in Header total number of tracks before compression | |
358 | ||
359 | // If no tracks generated return now | |
360 | if(fHgwmk+1 == fNtrack) return; | |
361 | ||
9e1a0ddb | 362 | // First pass, invalid Daughter information |
363 | for(i=0; i<fNtrack; i++) { | |
364 | // Preset map, to be removed later | |
365 | if(i<=fHgwmk) map[i]=i ; | |
366 | else { | |
367 | map[i] = -99; | |
76969085 | 368 | if((part=(TParticle*) particles.At(i))) { |
369 | part->ResetBit(kDaughtersBit); | |
370 | part->SetFirstDaughter(-1); | |
371 | part->SetLastDaughter(-1); | |
372 | } | |
9e1a0ddb | 373 | } |
374 | } | |
375 | // Invalid daughter information for the parent of the first particle | |
376 | // generated. This may or may not be the current primary according to | |
377 | // whether decays have been recorded among the primaries | |
378 | part = (TParticle *)particles.At(fHgwmk+1); | |
379 | particles.At(part->GetFirstMother())->ResetBit(kDaughtersBit); | |
380 | // Second pass, build map between old and new numbering | |
381 | for(i=fHgwmk+1; i<fNtrack; i++) { | |
382 | if(particles.At(i)->TestBit(kKeepBit)) { | |
383 | ||
384 | // This particle has to be kept | |
385 | map[i]=nkeep; | |
386 | // If old and new are different, have to move the pointer | |
387 | if(i!=nkeep) particles[nkeep]=particles.At(i); | |
388 | part = (TParticle*) particles.At(nkeep); | |
389 | ||
390 | // as the parent is always *before*, it must be already | |
391 | // in place. This is what we are checking anyway! | |
392 | if((parent=part->GetFirstMother())>fHgwmk) | |
393 | if(map[parent]==-99) Fatal("PurifyKine","map[%d] = -99!\n",parent); | |
394 | else part->SetFirstMother(map[parent]); | |
395 | ||
396 | nkeep++; | |
397 | } | |
398 | } | |
399 | ||
400 | // Fix daughters information | |
401 | for (i=fHgwmk+1; i<nkeep; i++) { | |
402 | part = (TParticle *)particles.At(i); | |
403 | parent = part->GetFirstMother(); | |
404 | if(parent>=0) { | |
405 | father = (TParticle *)particles.At(parent); | |
406 | if(father->TestBit(kDaughtersBit)) { | |
407 | ||
408 | if(i<father->GetFirstDaughter()) father->SetFirstDaughter(i); | |
409 | if(i>father->GetLastDaughter()) father->SetLastDaughter(i); | |
410 | } else { | |
411 | // Initialise daughters info for first pass | |
412 | father->SetFirstDaughter(i); | |
413 | father->SetLastDaughter(i); | |
414 | father->SetBit(kDaughtersBit); | |
415 | } | |
416 | } | |
417 | } | |
418 | ||
419 | // Now loop on all registered hit lists | |
420 | TList* hitLists = gAlice->GetHitLists(); | |
421 | TIter next(hitLists); | |
422 | TCollection *hitList; | |
423 | while((hitList = (TCollection*)next())) { | |
424 | TIter nexthit(hitList); | |
425 | AliHit *hit; | |
426 | while((hit = (AliHit*)nexthit())) { | |
427 | hit->SetTrack(map[hit->GetTrack()]); | |
428 | } | |
429 | } | |
430 | ||
431 | // | |
432 | // This for detectors which have a special mapping mechanism | |
433 | // for hits, such as TPC and TRD | |
434 | // | |
435 | ||
436 | TObjArray* modules = gAlice->Modules(); | |
437 | TIter nextmod(modules); | |
438 | AliModule *detector; | |
439 | while((detector = (AliModule*)nextmod())) { | |
440 | detector->RemapTrackHitIDs(map.GetArray()); | |
441 | } | |
442 | ||
443 | // Now the output bit, from fHgwmk to nkeep we write everything and we erase | |
444 | if(nkeep>fParticleFileMap.GetSize()) fParticleFileMap.Set(Int_t (nkeep*1.5)); | |
445 | ||
446 | for (i=fHgwmk+1; i<nkeep; ++i) { | |
447 | fParticleBuffer = (TParticle*) particles.At(i); | |
448 | fParticleFileMap[i]=(Int_t) fTreeK->GetEntries(); | |
449 | fTreeK->Fill(); | |
17f4a3d9 | 450 | particles[i]=fParticleBuffer=0; |
9e1a0ddb | 451 | } |
452 | ||
453 | for (i=nkeep; i<fNtrack; ++i) particles[i]=0; | |
454 | ||
76969085 | 455 | Int_t toshrink = fNtrack-fHgwmk-1; |
9e1a0ddb | 456 | fLoadPoint-=toshrink; |
457 | for(i=fLoadPoint; i<fLoadPoint+toshrink; ++i) fParticles->RemoveAt(i); | |
458 | ||
459 | fNtrack=nkeep; | |
460 | fHgwmk=nkeep-1; | |
461 | // delete [] map; | |
462 | } | |
463 | ||
464 | //_____________________________________________________________________________ | |
465 | void AliStack::FinishEvent() | |
466 | { | |
467 | // | |
468 | // Write out the kinematics that was not yet filled | |
469 | // | |
470 | ||
471 | // Update event header | |
472 | ||
473 | ||
474 | if (!fTreeK) { | |
475 | // Fatal("FinishEvent", "No kinematics tree is defined."); | |
476 | // Don't panic this is a probably a lego run | |
477 | return; | |
478 | ||
479 | } | |
480 | ||
481 | CleanParents(); | |
482 | if(fTreeK->GetEntries() ==0) { | |
483 | // set the fParticleFileMap size for the first time | |
484 | fParticleFileMap.Set(fHgwmk+1); | |
485 | } | |
486 | ||
487 | Bool_t allFilled = kFALSE; | |
488 | TObject *part; | |
489 | for(Int_t i=0; i<fHgwmk+1; ++i) | |
490 | if((part=fParticleMap->At(i))) { | |
491 | fParticleBuffer = (TParticle*) part; | |
492 | fParticleFileMap[i]= (Int_t) fTreeK->GetEntries(); | |
493 | fTreeK->Fill(); | |
da2af24c | 494 | //PH (*fParticleMap)[i]=fParticleBuffer=0; |
495 | fParticleBuffer=0; | |
496 | fParticleMap->AddAt(0,i); | |
9e1a0ddb | 497 | |
498 | // When all primaries were filled no particle!=0 | |
499 | // should be left => to be removed later. | |
500 | if (allFilled) printf("Why != 0 part # %d?\n",i); | |
501 | } | |
502 | else { | |
503 | // // printf("Why = 0 part # %d?\n",i); => We know. | |
504 | // break; | |
505 | // we don't break now in order to be sure there is no | |
506 | // particle !=0 left. | |
507 | // To be removed later and replaced with break. | |
508 | if(!allFilled) allFilled = kTRUE; | |
509 | } | |
ccf7a81f | 510 | // cout << "Nof particles: " << fNtrack << endl; |
9e1a0ddb | 511 | //Reset(); |
512 | } | |
513 | ||
514 | //_____________________________________________________________________________ | |
515 | void AliStack::FlagTrack(Int_t track) | |
516 | { | |
517 | // | |
518 | // Flags a track and all its family tree to be kept | |
519 | // | |
520 | ||
521 | TParticle *particle; | |
522 | ||
523 | Int_t curr=track; | |
524 | while(1) { | |
525 | particle=(TParticle*)fParticleMap->At(curr); | |
526 | ||
527 | // If the particle is flagged the three from here upward is saved already | |
528 | if(particle->TestBit(kKeepBit)) return; | |
529 | ||
530 | // Save this particle | |
531 | particle->SetBit(kKeepBit); | |
532 | ||
533 | // Move to father if any | |
534 | if((curr=particle->GetFirstMother())==-1) return; | |
535 | } | |
536 | } | |
537 | ||
538 | //_____________________________________________________________________________ | |
ed54bf31 | 539 | void AliStack::KeepTrack(Int_t track) |
9e1a0ddb | 540 | { |
541 | // | |
542 | // Flags a track to be kept | |
543 | // | |
544 | ||
545 | fParticleMap->At(track)->SetBit(kKeepBit); | |
546 | } | |
547 | ||
548 | //_____________________________________________________________________________ | |
549 | void AliStack::Reset(Int_t size) | |
550 | { | |
551 | // | |
552 | // Resets stack | |
553 | // | |
554 | ||
555 | fNtrack=0; | |
556 | fNprimary=0; | |
557 | fHgwmk=0; | |
558 | fLoadPoint=0; | |
559 | fCurrent = -1; | |
560 | ResetArrays(size); | |
561 | } | |
562 | ||
563 | //_____________________________________________________________________________ | |
564 | void AliStack::ResetArrays(Int_t size) | |
565 | { | |
566 | // | |
567 | // Resets stack arrays | |
568 | // | |
569 | ||
be3380a3 | 570 | if (fParticles) |
571 | fParticles->Clear(); | |
572 | else | |
573 | fParticles = new TClonesArray("TParticle",1000); | |
574 | if (fParticleMap) { | |
575 | fParticleMap->Clear(); | |
576 | if (size>0) fParticleMap->Expand(size);} | |
577 | else | |
578 | fParticleMap = new TObjArray(size); | |
9e1a0ddb | 579 | } |
580 | ||
581 | //_____________________________________________________________________________ | |
ed54bf31 | 582 | void AliStack::SetHighWaterMark(Int_t nt) |
9e1a0ddb | 583 | { |
584 | // | |
585 | // Set high water mark for last track in event | |
586 | // | |
587 | ||
588 | fHgwmk = fNtrack-1; | |
589 | fCurrentPrimary=fHgwmk; | |
590 | ||
591 | // Set also number of primary tracks | |
592 | fNprimary = fHgwmk+1; | |
593 | fNtrack = fHgwmk+1; | |
594 | } | |
595 | ||
596 | //_____________________________________________________________________________ | |
597 | TParticle* AliStack::Particle(Int_t i) | |
598 | { | |
599 | // | |
600 | // Return particle with specified ID | |
601 | ||
da2af24c | 602 | //PH if(!(*fParticleMap)[i]) { |
603 | if(!fParticleMap->At(i)) { | |
911a3148 | 604 | Int_t nentries = fParticles->GetEntriesFast(); |
9e1a0ddb | 605 | // algorithmic way of getting entry index |
606 | // (primary particles are filled after secondaries) | |
607 | Int_t entry; | |
608 | if (i<fNprimary) | |
609 | entry = i+fNtrack-fNprimary; | |
610 | else | |
611 | entry = i-fNprimary; | |
612 | // check whether algorithmic way and | |
613 | // and the fParticleFileMap[i] give the same; | |
614 | // give the fatal error if not | |
615 | if (entry != fParticleFileMap[i]) { | |
616 | Fatal("Particle", | |
617 | "!! The algorithmic way and map are different: !!\n entry: %d map: %d", | |
618 | entry, fParticleFileMap[i]); | |
619 | } | |
620 | ||
621 | fTreeK->GetEntry(entry); | |
622 | new ((*fParticles)[nentries]) TParticle(*fParticleBuffer); | |
623 | fParticleMap->AddAt((*fParticles)[nentries],i); | |
624 | } | |
da2af24c | 625 | //PH return (TParticle *) (*fParticleMap)[i]; |
626 | return (TParticle *) fParticleMap->At(i); | |
9e1a0ddb | 627 | } |
628 | ||
629 | //_____________________________________________________________________________ | |
f5f55563 | 630 | Int_t AliStack::GetPrimary(Int_t id) |
9e1a0ddb | 631 | { |
632 | // | |
633 | // Return number of primary that has generated track | |
634 | // | |
635 | ||
636 | int current, parent; | |
9e1a0ddb | 637 | // |
638 | parent=id; | |
639 | while (1) { | |
640 | current=parent; | |
f5f55563 | 641 | parent=Particle(current)->GetFirstMother(); |
9e1a0ddb | 642 | if(parent<0) return current; |
643 | } | |
644 | } | |
645 | ||
646 | //_____________________________________________________________________________ | |
647 | void AliStack::DumpPart (Int_t i) const | |
648 | { | |
649 | // | |
650 | // Dumps particle i in the stack | |
651 | // | |
652 | ||
da2af24c | 653 | //PH ((TParticle*) (*fParticleMap)[i])->Print(); |
654 | ((TParticle*) fParticleMap->At(i))->Print(); | |
9e1a0ddb | 655 | } |
656 | ||
657 | //_____________________________________________________________________________ | |
658 | void AliStack::DumpPStack () | |
659 | { | |
660 | // | |
661 | // Dumps the particle stack | |
662 | // | |
663 | ||
3ab6f951 | 664 | Int_t i; |
665 | ||
9e1a0ddb | 666 | printf( |
667 | "\n\n=======================================================================\n"); | |
3ab6f951 | 668 | for (i=0;i<fNtrack;i++) |
9e1a0ddb | 669 | { |
670 | TParticle* particle = Particle(i); | |
671 | if (particle) { | |
672 | printf("-> %d ",i); particle->Print(); | |
673 | printf("--------------------------------------------------------------\n"); | |
674 | } | |
675 | else | |
676 | Warning("DumpPStack", "No particle with id %d.", i); | |
677 | } | |
678 | ||
679 | printf( | |
680 | "\n=======================================================================\n\n"); | |
681 | ||
682 | // print particle file map | |
683 | printf("\nParticle file map: \n"); | |
3ab6f951 | 684 | for (i=0; i<fNtrack; i++) |
9e1a0ddb | 685 | printf(" %d th entry: %d \n",i,fParticleFileMap[i]); |
686 | } | |
687 | ||
688 | ||
689 | //_____________________________________________________________________________ | |
690 | void AliStack::DumpLoadedStack() const | |
691 | { | |
692 | // | |
693 | // Dumps the particle in the stack | |
694 | // that are loaded in memory. | |
695 | // | |
696 | ||
697 | TObjArray &particles = *fParticleMap; | |
698 | printf( | |
699 | "\n\n=======================================================================\n"); | |
700 | for (Int_t i=0;i<fNtrack;i++) | |
701 | { | |
702 | TParticle* particle = (TParticle*) particles[i]; | |
703 | if (particle) { | |
704 | printf("-> %d ",i); particle->Print(); | |
705 | printf("--------------------------------------------------------------\n"); | |
706 | } | |
707 | else { | |
708 | printf("-> %d Particle not loaded.\n",i); | |
709 | printf("--------------------------------------------------------------\n"); | |
710 | } | |
711 | } | |
712 | printf( | |
713 | "\n=======================================================================\n\n"); | |
714 | } | |
715 | ||
716 | // | |
717 | // protected methods | |
718 | // | |
719 | ||
720 | //_____________________________________________________________________________ | |
721 | void AliStack::CleanParents() | |
722 | { | |
723 | // | |
724 | // Clean particles stack | |
725 | // Set parent/daughter relations | |
726 | // | |
727 | ||
728 | TObjArray &particles = *fParticleMap; | |
729 | TParticle *part; | |
730 | int i; | |
731 | for(i=0; i<fHgwmk+1; i++) { | |
732 | part = (TParticle *)particles.At(i); | |
733 | if(part) if(!part->TestBit(kDaughtersBit)) { | |
734 | part->SetFirstDaughter(-1); | |
735 | part->SetLastDaughter(-1); | |
736 | } | |
737 | } | |
738 | } | |
739 | ||
740 | //_____________________________________________________________________________ | |
741 | TParticle* AliStack::GetNextParticle() | |
742 | { | |
743 | // | |
744 | // Return next particle from stack of particles | |
745 | // | |
746 | ||
747 | TParticle* particle = 0; | |
748 | ||
749 | // search secondaries | |
750 | //for(Int_t i=fNtrack-1; i>=0; i--) { | |
751 | for(Int_t i=fNtrack-1; i>fHgwmk; i--) { | |
752 | particle = (TParticle*) fParticleMap->At(i); | |
753 | if ((particle) && (!particle->TestBit(kDoneBit))) { | |
754 | fCurrent=i; | |
755 | //cout << "GetNextParticle() - secondary " | |
756 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
757 | return particle; | |
758 | } | |
759 | } | |
760 | ||
761 | // take next primary if all secondaries were done | |
762 | while (fCurrentPrimary>=0) { | |
763 | fCurrent = fCurrentPrimary; | |
764 | particle = (TParticle*) fParticleMap->At(fCurrentPrimary--); | |
765 | if ((particle) && (!particle->TestBit(kDoneBit))) { | |
766 | //cout << "GetNextParticle() - primary " | |
767 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
768 | return particle; | |
769 | } | |
770 | } | |
771 | ||
772 | // nothing to be tracked | |
773 | fCurrent = -1; | |
774 | //cout << "GetNextParticle() - none " | |
775 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
776 | return particle; | |
777 | } | |
778 | ||
779 | //__________________________________________________________________________________________ | |
780 | void AliStack::MakeTree(Int_t event, const char *file) | |
781 | { | |
782 | // | |
783 | // Make Kine tree and creates branch for writing particles | |
784 | // | |
785 | TBranch *branch=0; | |
786 | // Make Kinematics Tree | |
787 | char hname[30]; | |
ccf7a81f | 788 | // printf("\n MakeTree called %d", event); |
9e1a0ddb | 789 | if (!fTreeK) { |
790 | sprintf(hname,"TreeK%d",event); | |
791 | fTreeK = new TTree(hname,"Kinematics"); | |
792 | // Create a branch for particles | |
d0f40f23 | 793 | branch = fTreeK->Branch("Particles", "TParticle", &fParticleBuffer, 4000); |
9e1a0ddb | 794 | fTreeK->Write(0,TObject::kOverwrite); |
795 | } | |
796 | } | |
797 | ||
81694e6a | 798 | //_____________________________________________________________________________ |
9e1a0ddb | 799 | void AliStack::BeginEvent(Int_t event) |
800 | { | |
801 | // start a new event | |
802 | // | |
803 | // | |
804 | fNprimary = 0; | |
805 | fNtrack = 0; | |
806 | ||
807 | char hname[30]; | |
808 | if(fTreeK) { | |
809 | fTreeK->Reset(); | |
810 | sprintf(hname,"TreeK%d",event); | |
811 | fTreeK->SetName(hname); | |
812 | } | |
813 | } | |
814 | ||
81694e6a | 815 | //_____________________________________________________________________________ |
9e1a0ddb | 816 | void AliStack::FinishRun() |
817 | { | |
818 | // Clean TreeK information | |
819 | if (fTreeK) { | |
820 | delete fTreeK; fTreeK = 0; | |
821 | } | |
822 | } | |
823 | ||
81694e6a | 824 | //_____________________________________________________________________________ |
cec14bc5 | 825 | Bool_t AliStack::GetEvent(Int_t event) |
9e1a0ddb | 826 | { |
827 | // | |
828 | // Get new event from TreeK | |
ccf7a81f | 829 | |
9e1a0ddb | 830 | // Reset/Create the particle stack |
831 | if (fTreeK) delete fTreeK; | |
832 | ||
833 | // Get Kine Tree from file | |
834 | char treeName[20]; | |
835 | sprintf(treeName,"TreeK%d",event); | |
836 | fTreeK = (TTree*)gDirectory->Get(treeName); | |
837 | ||
ccf7a81f | 838 | if (fTreeK) |
839 | fTreeK->SetBranchAddress("Particles", &fParticleBuffer); | |
840 | else { | |
9e1a0ddb | 841 | Error("GetEvent","cannot find Kine Tree for event:%d\n",event); |
ccf7a81f | 842 | return kFALSE; |
843 | } | |
844 | // printf("\n primaries %d", fNprimary); | |
845 | // printf("\n tracks %d", fNtrack); | |
846 | ||
9e1a0ddb | 847 | Int_t size = (Int_t)fTreeK->GetEntries(); |
848 | ResetArrays(size); | |
ccf7a81f | 849 | return kTRUE; |
9e1a0ddb | 850 | } |
ccf7a81f | 851 | |
852 | //---------------------------------------------------------------------- |