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