]>
Commit | Line | Data |
---|---|---|
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 | $Log$ | |
e2afb3b6 | 18 | Revision 1.25 2002/10/22 15:21:39 hristov |
19 | New methods for more effective access of particles from TreeK (J.Chudoba) | |
20 | ||
e94530da | 21 | Revision 1.24 2002/10/22 15:02:15 alibrary |
22 | Introducing Riostream.h | |
23 | ||
b16a1b1e | 24 | Revision 1.23 2002/10/14 14:57:32 hristov |
25 | Merging the VirtualMC branch to the main development branch (HEAD) | |
26 | ||
b9d0a01d | 27 | Revision 1.19.4.2 2002/08/28 15:06:52 alibrary |
28 | Updating to v3-09-01 | |
29 | ||
30 | Revision 1.19.4.1 2002/06/10 14:43:06 hristov | |
31 | Merged with v3-08-02 | |
32 | ||
ae9676e4 | 33 | Revision 1.21 2002/05/28 14:24:57 hristov |
34 | Correct warning messages | |
35 | ||
3d8c4988 | 36 | Revision 1.20 2002/04/30 11:47:30 morsch |
37 | KeepPhysics method called by PurifyKine added (N. Carrer, A.M.) | |
38 | ||
e44c5340 | 39 | Revision 1.19 2002/03/12 11:06:03 morsch |
40 | Add particle status code to argument list of SetTrack(..). | |
41 | ||
47c8bcbe | 42 | Revision 1.18 2002/02/20 16:14:41 hristov |
43 | fParticleBuffer points to object which doesn't belong to AliStack, do not delete it (J.Chudoba) | |
44 | ||
ba9938e6 | 45 | Revision 1.17 2001/12/05 08:51:56 hristov |
46 | The default constructor now creates no objects (thanks to r.Brun). Some corrections required by the previous changes. | |
47 | ||
be3380a3 | 48 | Revision 1.16 2001/11/20 09:27:55 hristov |
49 | Possibility to investigate a primary of not yet loaded particle (I.Hrivnacova) | |
50 | ||
f5f55563 | 51 | Revision 1.15 2001/09/04 15:10:37 hristov |
52 | Additional protection is included to avoid some problems using Hijing | |
53 | ||
1305ca2f | 54 | Revision 1.14 2001/08/30 09:44:06 hristov |
55 | VertexSource_t added to avoid the warnings | |
56 | ||
da2af24c | 57 | Revision 1.13 2001/08/29 13:31:42 morsch |
58 | Protection against (fTreeK == 0) in destructor. | |
59 | ||
cfb2cc9c | 60 | Revision 1.12 2001/07/27 13:03:13 hristov |
61 | Default Branch split level set to 99 | |
62 | ||
d0f40f23 | 63 | Revision 1.11 2001/07/27 12:34:20 jchudoba |
64 | remove the dummy argument in GetEvent method | |
65 | ||
cec14bc5 | 66 | Revision 1.10 2001/07/20 10:13:54 morsch |
67 | In Particle(Int_t) use GetEntriesFast to speed up the procedure. | |
68 | ||
911a3148 | 69 | Revision 1.9 2001/07/03 08:10:57 hristov |
70 | J.Chudoba's changes merged correctly with the HEAD | |
71 | ||
d1750cff | 72 | Revision 1.6 2001/05/31 06:59:06 fca |
73 | Clean setting and deleting of fParticleBuffer | |
74 | ||
17f4a3d9 | 75 | Revision 1.5 2001/05/30 12:18:46 hristov |
76 | Loop variables declared once | |
77 | ||
3ab6f951 | 78 | Revision 1.4 2001/05/25 07:25:20 hristov |
79 | AliStack destructor corrected (I.Hrivnacova) | |
80 | ||
81694e6a | 81 | Revision 1.3 2001/05/22 14:33:16 hristov |
82 | Minor changes | |
83 | ||
ed54bf31 | 84 | Revision 1.2 2001/05/17 05:49:39 fca |
85 | Reset pointers to daughters | |
86 | ||
76969085 | 87 | Revision 1.1 2001/05/16 14:57:22 alibrary |
88 | New files for folders and Stack | |
89 | ||
9e1a0ddb | 90 | */ |
91 | ||
92 | /////////////////////////////////////////////////////////////////////////////// | |
93 | // // | |
94 | // Particles stack class | |
95 | // // | |
96 | /////////////////////////////////////////////////////////////////////////////// | |
97 | ||
b16a1b1e | 98 | #include <Riostream.h> |
9e1a0ddb | 99 | |
100 | #include <TObjArray.h> | |
101 | #include <TParticle.h> | |
102 | #include <TTree.h> | |
103 | #include <TFile.h> | |
104 | #include <TFolder.h> | |
105 | #include <TROOT.h> | |
106 | ||
107 | #include "AliStack.h" | |
108 | #include "AliRun.h" | |
109 | #include "AliModule.h" | |
110 | #include "AliHit.h" | |
9e1a0ddb | 111 | |
112 | ClassImp(AliStack) | |
113 | ||
e2afb3b6 | 114 | //_______________________________________________________________________ |
115 | AliStack::AliStack(): | |
116 | fParticles(0), | |
117 | fParticleMap(0), | |
118 | fParticleFileMap(0), | |
119 | fParticleBuffer(0), | |
120 | fTreeK(0), | |
121 | fNtrack(0), | |
122 | fNprimary(0), | |
123 | fCurrent(-1), | |
124 | fCurrentPrimary(-1), | |
125 | fHgwmk(0), | |
126 | fLoadPoint(0) | |
9e1a0ddb | 127 | { |
128 | // | |
e2afb3b6 | 129 | // Default constructor |
9e1a0ddb | 130 | // |
9e1a0ddb | 131 | } |
132 | ||
e2afb3b6 | 133 | //_______________________________________________________________________ |
134 | AliStack::AliStack(Int_t size): | |
135 | fParticles(new TClonesArray("TParticle",1000)), | |
136 | fParticleMap(new TObjArray(size)), | |
137 | fParticleFileMap(0), | |
138 | fParticleBuffer(0), | |
139 | fTreeK(0), | |
140 | fNtrack(0), | |
141 | fNprimary(0), | |
142 | fCurrent(-1), | |
143 | fCurrentPrimary(-1), | |
144 | fHgwmk(0), | |
145 | fLoadPoint(0) | |
146 | { | |
147 | // | |
148 | // Constructor | |
149 | // | |
150 | } | |
9e1a0ddb | 151 | |
e2afb3b6 | 152 | //_______________________________________________________________________ |
153 | AliStack::AliStack(const AliStack& st): | |
154 | TVirtualMCStack(st), | |
155 | fParticles(0), | |
156 | fParticleMap(0), | |
157 | fParticleFileMap(0), | |
158 | fParticleBuffer(0), | |
159 | fTreeK(0), | |
160 | fNtrack(0), | |
161 | fNprimary(0), | |
162 | fCurrent(-1), | |
163 | fCurrentPrimary(-1), | |
164 | fHgwmk(0), | |
165 | fLoadPoint(0) | |
9e1a0ddb | 166 | { |
167 | // | |
e2afb3b6 | 168 | // Copy constructor |
9e1a0ddb | 169 | // |
e2afb3b6 | 170 | st.Copy(*this); |
9e1a0ddb | 171 | } |
172 | ||
e2afb3b6 | 173 | //_______________________________________________________________________ |
174 | void AliStack::Copy(AliStack&) const | |
175 | { | |
176 | Fatal("Copy","Not implemented!\n"); | |
177 | } | |
9e1a0ddb | 178 | |
e2afb3b6 | 179 | //_______________________________________________________________________ |
9e1a0ddb | 180 | AliStack::~AliStack() |
181 | { | |
182 | // | |
183 | // Destructor | |
184 | // | |
185 | ||
186 | if (fParticles) { | |
187 | fParticles->Delete(); | |
188 | delete fParticles; | |
189 | } | |
190 | delete fParticleMap; | |
e2afb3b6 | 191 | delete fTreeK; |
9e1a0ddb | 192 | } |
193 | ||
194 | // | |
195 | // public methods | |
196 | // | |
197 | ||
198 | //_____________________________________________________________________________ | |
199 | void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom, | |
200 | Float_t *vpos, Float_t *polar, Float_t tof, | |
47c8bcbe | 201 | AliMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) |
9e1a0ddb | 202 | { |
203 | // | |
204 | // Load a track on the stack | |
205 | // | |
206 | // done 0 if the track has to be transported | |
207 | // 1 if not | |
208 | // parent identifier of the parent track. -1 for a primary | |
209 | // pdg particle code | |
210 | // pmom momentum GeV/c | |
211 | // vpos position | |
212 | // polar polarisation | |
213 | // tof time of flight in seconds | |
214 | // mecha production mechanism | |
215 | // ntr on output the number of the track stored | |
216 | // | |
217 | ||
9e1a0ddb | 218 | // const Float_t tlife=0; |
219 | ||
220 | // | |
221 | // Here we get the static mass | |
222 | // For MC is ok, but a more sophisticated method could be necessary | |
223 | // if the calculated mass is required | |
224 | // also, this method is potentially dangerous if the mass | |
225 | // used in the MC is not the same of the PDG database | |
226 | // | |
b9d0a01d | 227 | Float_t mass = TDatabasePDG::Instance()->GetParticle(pdg)->Mass(); |
9e1a0ddb | 228 | Float_t e=TMath::Sqrt(mass*mass+pmom[0]*pmom[0]+ |
229 | pmom[1]*pmom[1]+pmom[2]*pmom[2]); | |
230 | ||
ccf7a81f | 231 | // 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", |
232 | // mass,e,fNtrack,pdg,parent,done,vpos[0],vpos[1],vpos[2],pmom[0],pmom[1],pmom[2],kS); | |
233 | ||
9e1a0ddb | 234 | |
b9d0a01d | 235 | SetTrack(done, parent, pdg, pmom[0], pmom[1], pmom[2], e, |
236 | vpos[0], vpos[1], vpos[2], tof, polar[0], polar[1], polar[2], | |
237 | mech, ntr, weight, is); | |
9e1a0ddb | 238 | } |
239 | ||
240 | //_____________________________________________________________________________ | |
241 | void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg, | |
242 | Double_t px, Double_t py, Double_t pz, Double_t e, | |
243 | Double_t vx, Double_t vy, Double_t vz, Double_t tof, | |
244 | Double_t polx, Double_t poly, Double_t polz, | |
b9d0a01d | 245 | AliMCProcess mech, Int_t &ntr, Double_t weight, Int_t is) |
9e1a0ddb | 246 | { |
247 | // | |
248 | // Load a track on the stack | |
249 | // | |
250 | // done 0 if the track has to be transported | |
251 | // 1 if not | |
252 | // parent identifier of the parent track. -1 for a primary | |
253 | // pdg particle code | |
254 | // kS generation status code | |
255 | // px, py, pz momentum GeV/c | |
256 | // vx, vy, vz position | |
257 | // polar polarisation | |
258 | // tof time of flight in seconds | |
259 | // mech production mechanism | |
260 | // ntr on output the number of the track stored | |
261 | // | |
262 | // New method interface: | |
263 | // arguments were changed to be in correspondence with TParticle | |
264 | // constructor. | |
265 | // Note: the energy is not calculated from the static mass but | |
266 | // it is passed by argument e. | |
267 | ||
268 | ||
9e1a0ddb | 269 | const Int_t kFirstDaughter=-1; |
270 | const Int_t kLastDaughter=-1; | |
271 | ||
272 | TClonesArray &particles = *fParticles; | |
273 | TParticle* particle | |
274 | = new(particles[fLoadPoint++]) | |
47c8bcbe | 275 | TParticle(pdg, is, parent, -1, kFirstDaughter, kLastDaughter, |
9e1a0ddb | 276 | px, py, pz, e, vx, vy, vz, tof); |
277 | ||
278 | particle->SetPolarisation(polx, poly, polz); | |
279 | particle->SetWeight(weight); | |
280 | particle->SetUniqueID(mech); | |
281 | ||
282 | if(!done) particle->SetBit(kDoneBit); | |
283 | ||
284 | // Declare that the daughter information is valid | |
285 | particle->SetBit(kDaughtersBit); | |
286 | // Add the particle to the stack | |
287 | fParticleMap->AddAtAndExpand(particle, fNtrack);//CHECK!! | |
288 | ||
289 | if(parent>=0) { | |
e2afb3b6 | 290 | particle = dynamic_cast<TParticle*>(fParticleMap->At(parent)); |
1305ca2f | 291 | if (particle) { |
292 | particle->SetLastDaughter(fNtrack); | |
293 | if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack); | |
294 | } | |
295 | else { | |
296 | printf("Error in AliStack::SetTrack: Parent %d does not exist\n",parent); | |
297 | } | |
9e1a0ddb | 298 | } |
299 | else { | |
300 | // | |
301 | // This is a primary track. Set high water mark for this event | |
302 | fHgwmk = fNtrack; | |
303 | // | |
304 | // Set also number if primary tracks | |
305 | fNprimary = fHgwmk+1; | |
306 | fCurrentPrimary++; | |
307 | } | |
308 | ntr = fNtrack++; | |
309 | } | |
310 | ||
311 | //_____________________________________________________________________________ | |
b9d0a01d | 312 | TParticle* AliStack::GetNextTrack(Int_t& itrack) |
313 | { | |
314 | // | |
315 | // Returns next track from stack of particles | |
316 | // | |
317 | ||
318 | ||
319 | TParticle* track = GetNextParticle(); | |
320 | ||
321 | if (track) { | |
322 | itrack = fCurrent; | |
323 | track->SetBit(kDoneBit); | |
324 | } | |
325 | else | |
326 | itrack = -1; | |
327 | ||
328 | return track; | |
329 | } | |
330 | ||
331 | /* | |
332 | //_____________________________________________________________________________ | |
333 | void AliStack::GetNextTrack(Int_t& itrack, Int_t& pdg, | |
334 | Double_t& px, Double_t& py, Double_t& pz, Double_t& e, | |
335 | Double_t& vx, Double_t& vy, Double_t& vz, Double_t& tof, | |
336 | Double_t& polx, Double_t& poly, Double_t& polz) | |
9e1a0ddb | 337 | { |
338 | // | |
339 | // Return next track from stack of particles | |
340 | // | |
341 | ||
342 | ||
343 | TParticle* track = GetNextParticle(); | |
ccf7a81f | 344 | // cout << "GetNextTrack():" << fCurrent << fNprimary << endl; |
9e1a0ddb | 345 | |
b9d0a01d | 346 | if (track) { |
347 | itrack = fCurrent; | |
348 | pdg = track->GetPdgCode(); | |
349 | px = track->Px(); | |
350 | py = track->Py(); | |
351 | pz = track->Pz(); | |
352 | e = track->Energy(); | |
353 | vx = track->Vx(); | |
354 | vy = track->Vy(); | |
355 | vz = track->Vz(); | |
356 | tof = track->T(); | |
9e1a0ddb | 357 | TVector3 pol; |
358 | track->GetPolarisation(pol); | |
b9d0a01d | 359 | polx = pol.X(); |
360 | poly = pol.Y(); | |
361 | polz = pol.Z(); | |
9e1a0ddb | 362 | track->SetBit(kDoneBit); |
ccf7a81f | 363 | // cout << "Filled params" << endl; |
9e1a0ddb | 364 | } |
365 | else | |
b9d0a01d | 366 | itrack = -1; |
9e1a0ddb | 367 | |
368 | // | |
369 | // stop and start timer when we start a primary track | |
370 | Int_t nprimaries = fNprimary; | |
371 | if (fCurrent >= nprimaries) return; | |
372 | if (fCurrent < nprimaries-1) { | |
373 | fTimer.Stop(); | |
374 | track=(TParticle*) fParticleMap->At(fCurrent+1); | |
375 | // track->SetProcessTime(fTimer.CpuTime()); | |
376 | } | |
377 | fTimer.Start(); | |
378 | } | |
379 | ||
b9d0a01d | 380 | */ |
381 | //_____________________________________________________________________________ | |
382 | TParticle* AliStack::GetPrimaryForTracking(Int_t i) | |
383 | { | |
384 | // | |
385 | // Returns i-th primary particle if it is flagged to be tracked, | |
386 | // 0 otherwise | |
387 | // | |
388 | ||
389 | TParticle* particle = Particle(i); | |
390 | ||
391 | if (!particle->TestBit(kDoneBit)) | |
392 | return particle; | |
393 | else | |
394 | return 0; | |
395 | } | |
396 | ||
9e1a0ddb | 397 | |
398 | //_____________________________________________________________________________ | |
399 | void AliStack::PurifyKine() | |
400 | { | |
401 | // | |
402 | // Compress kinematic tree keeping only flagged particles | |
403 | // and renaming the particle id's in all the hits | |
404 | // | |
405 | ||
406 | TObjArray &particles = *fParticleMap; | |
407 | int nkeep=fHgwmk+1, parent, i; | |
408 | TParticle *part, *father; | |
409 | TArrayI map(particles.GetLast()+1); | |
410 | ||
411 | // Save in Header total number of tracks before compression | |
412 | ||
413 | // If no tracks generated return now | |
414 | if(fHgwmk+1 == fNtrack) return; | |
415 | ||
9e1a0ddb | 416 | // First pass, invalid Daughter information |
417 | for(i=0; i<fNtrack; i++) { | |
418 | // Preset map, to be removed later | |
419 | if(i<=fHgwmk) map[i]=i ; | |
420 | else { | |
421 | map[i] = -99; | |
e2afb3b6 | 422 | if((part=dynamic_cast<TParticle*>(particles.At(i)))) { |
e44c5340 | 423 | // |
424 | // Check of this track should be kept for physics reasons | |
425 | if (KeepPhysics(part)) KeepTrack(i); | |
426 | // | |
76969085 | 427 | part->ResetBit(kDaughtersBit); |
428 | part->SetFirstDaughter(-1); | |
429 | part->SetLastDaughter(-1); | |
430 | } | |
9e1a0ddb | 431 | } |
432 | } | |
433 | // Invalid daughter information for the parent of the first particle | |
434 | // generated. This may or may not be the current primary according to | |
435 | // whether decays have been recorded among the primaries | |
e2afb3b6 | 436 | part = dynamic_cast<TParticle*>(particles.At(fHgwmk+1)); |
9e1a0ddb | 437 | particles.At(part->GetFirstMother())->ResetBit(kDaughtersBit); |
438 | // Second pass, build map between old and new numbering | |
439 | for(i=fHgwmk+1; i<fNtrack; i++) { | |
440 | if(particles.At(i)->TestBit(kKeepBit)) { | |
441 | ||
442 | // This particle has to be kept | |
443 | map[i]=nkeep; | |
444 | // If old and new are different, have to move the pointer | |
445 | if(i!=nkeep) particles[nkeep]=particles.At(i); | |
e2afb3b6 | 446 | part = dynamic_cast<TParticle*>(particles.At(nkeep)); |
9e1a0ddb | 447 | |
448 | // as the parent is always *before*, it must be already | |
449 | // in place. This is what we are checking anyway! | |
450 | if((parent=part->GetFirstMother())>fHgwmk) | |
451 | if(map[parent]==-99) Fatal("PurifyKine","map[%d] = -99!\n",parent); | |
452 | else part->SetFirstMother(map[parent]); | |
453 | ||
454 | nkeep++; | |
455 | } | |
456 | } | |
457 | ||
458 | // Fix daughters information | |
459 | for (i=fHgwmk+1; i<nkeep; i++) { | |
e2afb3b6 | 460 | part = dynamic_cast<TParticle*>(particles.At(i)); |
9e1a0ddb | 461 | parent = part->GetFirstMother(); |
462 | if(parent>=0) { | |
e2afb3b6 | 463 | father = dynamic_cast<TParticle*>(particles.At(parent)); |
9e1a0ddb | 464 | if(father->TestBit(kDaughtersBit)) { |
465 | ||
466 | if(i<father->GetFirstDaughter()) father->SetFirstDaughter(i); | |
467 | if(i>father->GetLastDaughter()) father->SetLastDaughter(i); | |
468 | } else { | |
469 | // Initialise daughters info for first pass | |
470 | father->SetFirstDaughter(i); | |
471 | father->SetLastDaughter(i); | |
472 | father->SetBit(kDaughtersBit); | |
473 | } | |
474 | } | |
475 | } | |
476 | ||
477 | // Now loop on all registered hit lists | |
478 | TList* hitLists = gAlice->GetHitLists(); | |
479 | TIter next(hitLists); | |
480 | TCollection *hitList; | |
e2afb3b6 | 481 | while((hitList = dynamic_cast<TCollection*>(next()))) { |
9e1a0ddb | 482 | TIter nexthit(hitList); |
483 | AliHit *hit; | |
e2afb3b6 | 484 | while((hit = dynamic_cast<AliHit*>(nexthit()))) { |
9e1a0ddb | 485 | hit->SetTrack(map[hit->GetTrack()]); |
486 | } | |
487 | } | |
488 | ||
489 | // | |
490 | // This for detectors which have a special mapping mechanism | |
491 | // for hits, such as TPC and TRD | |
492 | // | |
493 | ||
494 | TObjArray* modules = gAlice->Modules(); | |
495 | TIter nextmod(modules); | |
496 | AliModule *detector; | |
e2afb3b6 | 497 | while((detector = dynamic_cast<AliModule*>(nextmod()))) { |
9e1a0ddb | 498 | detector->RemapTrackHitIDs(map.GetArray()); |
ae9676e4 | 499 | detector->RemapTrackReferencesIDs(map.GetArray()); |
9e1a0ddb | 500 | } |
501 | ||
502 | // Now the output bit, from fHgwmk to nkeep we write everything and we erase | |
503 | if(nkeep>fParticleFileMap.GetSize()) fParticleFileMap.Set(Int_t (nkeep*1.5)); | |
504 | ||
505 | for (i=fHgwmk+1; i<nkeep; ++i) { | |
e2afb3b6 | 506 | fParticleBuffer = dynamic_cast<TParticle*>(particles.At(i)); |
507 | fParticleFileMap[i]=static_cast<Int_t>(fTreeK->GetEntries()); | |
9e1a0ddb | 508 | fTreeK->Fill(); |
17f4a3d9 | 509 | particles[i]=fParticleBuffer=0; |
9e1a0ddb | 510 | } |
511 | ||
512 | for (i=nkeep; i<fNtrack; ++i) particles[i]=0; | |
513 | ||
76969085 | 514 | Int_t toshrink = fNtrack-fHgwmk-1; |
9e1a0ddb | 515 | fLoadPoint-=toshrink; |
516 | for(i=fLoadPoint; i<fLoadPoint+toshrink; ++i) fParticles->RemoveAt(i); | |
517 | ||
518 | fNtrack=nkeep; | |
519 | fHgwmk=nkeep-1; | |
520 | // delete [] map; | |
521 | } | |
522 | ||
e44c5340 | 523 | Bool_t AliStack::KeepPhysics(TParticle* part) |
524 | { | |
525 | // | |
526 | // Some particles have to kept on the stack for reasons motivated | |
527 | // by physics analysis. Decision is put here. | |
528 | // | |
529 | Bool_t keep = kFALSE; | |
530 | // | |
531 | // Keep first-generation daughter from primaries with heavy flavor | |
532 | // | |
533 | Int_t parent = part->GetFirstMother(); | |
534 | if (parent >= 0 && parent <= fHgwmk) { | |
e2afb3b6 | 535 | TParticle* father = dynamic_cast<TParticle*>(Particles()->At(parent)); |
e44c5340 | 536 | Int_t kf = father->GetPdgCode(); |
537 | kf = TMath::Abs(kf); | |
538 | Int_t kfl = kf; | |
539 | // meson ? | |
540 | if (kfl > 10) kfl/=100; | |
541 | // baryon | |
542 | if (kfl > 10) kfl/=10; | |
543 | if (kfl > 10) kfl/=10; | |
544 | if (kfl >= 4) { | |
545 | keep = kTRUE; | |
546 | } | |
547 | } | |
548 | return keep; | |
549 | } | |
550 | ||
9e1a0ddb | 551 | //_____________________________________________________________________________ |
552 | void AliStack::FinishEvent() | |
553 | { | |
554 | // | |
555 | // Write out the kinematics that was not yet filled | |
556 | // | |
557 | ||
558 | // Update event header | |
559 | ||
560 | ||
561 | if (!fTreeK) { | |
562 | // Fatal("FinishEvent", "No kinematics tree is defined."); | |
563 | // Don't panic this is a probably a lego run | |
564 | return; | |
565 | ||
566 | } | |
567 | ||
568 | CleanParents(); | |
569 | if(fTreeK->GetEntries() ==0) { | |
570 | // set the fParticleFileMap size for the first time | |
571 | fParticleFileMap.Set(fHgwmk+1); | |
572 | } | |
573 | ||
574 | Bool_t allFilled = kFALSE; | |
575 | TObject *part; | |
576 | for(Int_t i=0; i<fHgwmk+1; ++i) | |
577 | if((part=fParticleMap->At(i))) { | |
e2afb3b6 | 578 | fParticleBuffer = dynamic_cast<TParticle*>(part); |
579 | fParticleFileMap[i]= static_cast<Int_t>(fTreeK->GetEntries()); | |
9e1a0ddb | 580 | fTreeK->Fill(); |
da2af24c | 581 | //PH (*fParticleMap)[i]=fParticleBuffer=0; |
582 | fParticleBuffer=0; | |
583 | fParticleMap->AddAt(0,i); | |
9e1a0ddb | 584 | |
585 | // When all primaries were filled no particle!=0 | |
586 | // should be left => to be removed later. | |
587 | if (allFilled) printf("Why != 0 part # %d?\n",i); | |
588 | } | |
589 | else { | |
590 | // // printf("Why = 0 part # %d?\n",i); => We know. | |
591 | // break; | |
592 | // we don't break now in order to be sure there is no | |
593 | // particle !=0 left. | |
594 | // To be removed later and replaced with break. | |
595 | if(!allFilled) allFilled = kTRUE; | |
596 | } | |
ccf7a81f | 597 | // cout << "Nof particles: " << fNtrack << endl; |
9e1a0ddb | 598 | //Reset(); |
599 | } | |
600 | ||
601 | //_____________________________________________________________________________ | |
602 | void AliStack::FlagTrack(Int_t track) | |
603 | { | |
604 | // | |
605 | // Flags a track and all its family tree to be kept | |
606 | // | |
607 | ||
608 | TParticle *particle; | |
609 | ||
610 | Int_t curr=track; | |
611 | while(1) { | |
e2afb3b6 | 612 | particle=dynamic_cast<TParticle*>(fParticleMap->At(curr)); |
9e1a0ddb | 613 | |
614 | // If the particle is flagged the three from here upward is saved already | |
615 | if(particle->TestBit(kKeepBit)) return; | |
616 | ||
617 | // Save this particle | |
618 | particle->SetBit(kKeepBit); | |
619 | ||
620 | // Move to father if any | |
621 | if((curr=particle->GetFirstMother())==-1) return; | |
622 | } | |
623 | } | |
624 | ||
625 | //_____________________________________________________________________________ | |
ed54bf31 | 626 | void AliStack::KeepTrack(Int_t track) |
9e1a0ddb | 627 | { |
628 | // | |
629 | // Flags a track to be kept | |
630 | // | |
631 | ||
632 | fParticleMap->At(track)->SetBit(kKeepBit); | |
633 | } | |
634 | ||
635 | //_____________________________________________________________________________ | |
636 | void AliStack::Reset(Int_t size) | |
637 | { | |
638 | // | |
639 | // Resets stack | |
640 | // | |
641 | ||
642 | fNtrack=0; | |
643 | fNprimary=0; | |
644 | fHgwmk=0; | |
645 | fLoadPoint=0; | |
646 | fCurrent = -1; | |
647 | ResetArrays(size); | |
648 | } | |
649 | ||
650 | //_____________________________________________________________________________ | |
651 | void AliStack::ResetArrays(Int_t size) | |
652 | { | |
653 | // | |
654 | // Resets stack arrays | |
655 | // | |
656 | ||
be3380a3 | 657 | if (fParticles) |
658 | fParticles->Clear(); | |
659 | else | |
660 | fParticles = new TClonesArray("TParticle",1000); | |
661 | if (fParticleMap) { | |
662 | fParticleMap->Clear(); | |
663 | if (size>0) fParticleMap->Expand(size);} | |
664 | else | |
665 | fParticleMap = new TObjArray(size); | |
9e1a0ddb | 666 | } |
667 | ||
668 | //_____________________________________________________________________________ | |
e2afb3b6 | 669 | void AliStack::SetHighWaterMark(Int_t) |
9e1a0ddb | 670 | { |
671 | // | |
672 | // Set high water mark for last track in event | |
673 | // | |
674 | ||
675 | fHgwmk = fNtrack-1; | |
676 | fCurrentPrimary=fHgwmk; | |
677 | ||
678 | // Set also number of primary tracks | |
679 | fNprimary = fHgwmk+1; | |
680 | fNtrack = fHgwmk+1; | |
681 | } | |
682 | ||
683 | //_____________________________________________________________________________ | |
684 | TParticle* AliStack::Particle(Int_t i) | |
685 | { | |
686 | // | |
687 | // Return particle with specified ID | |
688 | ||
da2af24c | 689 | //PH if(!(*fParticleMap)[i]) { |
690 | if(!fParticleMap->At(i)) { | |
911a3148 | 691 | Int_t nentries = fParticles->GetEntriesFast(); |
9e1a0ddb | 692 | // algorithmic way of getting entry index |
693 | // (primary particles are filled after secondaries) | |
e94530da | 694 | Int_t entry = TreeKEntry(i); |
9e1a0ddb | 695 | // check whether algorithmic way and |
696 | // and the fParticleFileMap[i] give the same; | |
697 | // give the fatal error if not | |
698 | if (entry != fParticleFileMap[i]) { | |
699 | Fatal("Particle", | |
700 | "!! The algorithmic way and map are different: !!\n entry: %d map: %d", | |
701 | entry, fParticleFileMap[i]); | |
702 | } | |
703 | ||
704 | fTreeK->GetEntry(entry); | |
705 | new ((*fParticles)[nentries]) TParticle(*fParticleBuffer); | |
706 | fParticleMap->AddAt((*fParticles)[nentries],i); | |
707 | } | |
e2afb3b6 | 708 | //PH return dynamic_cast<TParticle *>((*fParticleMap)[i]); |
709 | return dynamic_cast<TParticle*>(fParticleMap->At(i)); | |
9e1a0ddb | 710 | } |
711 | ||
e94530da | 712 | //_____________________________________________________________________________ |
713 | TParticle* AliStack::ParticleFromTreeK(Int_t id) const | |
714 | { | |
715 | // | |
716 | // return pointer to TParticle with label id | |
717 | // | |
718 | Int_t entry; | |
719 | if ((entry = TreeKEntry(id)) < 0) return 0; | |
720 | if (fTreeK->GetEntry(entry)<=0) return 0; | |
721 | return fParticleBuffer; | |
722 | } | |
723 | ||
724 | //_____________________________________________________________________________ | |
725 | Int_t AliStack::TreeKEntry(Int_t id) const | |
726 | { | |
727 | // | |
728 | // return entry number in the TreeK for particle with label id | |
729 | // return negative number if label>fNtrack | |
730 | // | |
731 | Int_t entry; | |
732 | if (id<fNprimary) | |
733 | entry = id+fNtrack-fNprimary; | |
734 | else | |
735 | entry = id-fNprimary; | |
736 | return entry; | |
737 | } | |
738 | ||
9e1a0ddb | 739 | //_____________________________________________________________________________ |
f5f55563 | 740 | Int_t AliStack::GetPrimary(Int_t id) |
9e1a0ddb | 741 | { |
742 | // | |
743 | // Return number of primary that has generated track | |
744 | // | |
745 | ||
746 | int current, parent; | |
9e1a0ddb | 747 | // |
748 | parent=id; | |
749 | while (1) { | |
750 | current=parent; | |
f5f55563 | 751 | parent=Particle(current)->GetFirstMother(); |
9e1a0ddb | 752 | if(parent<0) return current; |
753 | } | |
754 | } | |
755 | ||
756 | //_____________________________________________________________________________ | |
757 | void AliStack::DumpPart (Int_t i) const | |
758 | { | |
759 | // | |
760 | // Dumps particle i in the stack | |
761 | // | |
762 | ||
e2afb3b6 | 763 | //PH dynamic_cast<TParticle*>((*fParticleMap)[i])->Print(); |
764 | dynamic_cast<TParticle*>(fParticleMap->At(i))->Print(); | |
9e1a0ddb | 765 | } |
766 | ||
767 | //_____________________________________________________________________________ | |
768 | void AliStack::DumpPStack () | |
769 | { | |
770 | // | |
771 | // Dumps the particle stack | |
772 | // | |
773 | ||
3ab6f951 | 774 | Int_t i; |
775 | ||
9e1a0ddb | 776 | printf( |
777 | "\n\n=======================================================================\n"); | |
3ab6f951 | 778 | for (i=0;i<fNtrack;i++) |
9e1a0ddb | 779 | { |
780 | TParticle* particle = Particle(i); | |
781 | if (particle) { | |
782 | printf("-> %d ",i); particle->Print(); | |
783 | printf("--------------------------------------------------------------\n"); | |
784 | } | |
785 | else | |
786 | Warning("DumpPStack", "No particle with id %d.", i); | |
787 | } | |
788 | ||
789 | printf( | |
790 | "\n=======================================================================\n\n"); | |
791 | ||
792 | // print particle file map | |
793 | printf("\nParticle file map: \n"); | |
3ab6f951 | 794 | for (i=0; i<fNtrack; i++) |
9e1a0ddb | 795 | printf(" %d th entry: %d \n",i,fParticleFileMap[i]); |
796 | } | |
797 | ||
798 | ||
799 | //_____________________________________________________________________________ | |
800 | void AliStack::DumpLoadedStack() const | |
801 | { | |
802 | // | |
803 | // Dumps the particle in the stack | |
804 | // that are loaded in memory. | |
805 | // | |
806 | ||
807 | TObjArray &particles = *fParticleMap; | |
808 | printf( | |
809 | "\n\n=======================================================================\n"); | |
810 | for (Int_t i=0;i<fNtrack;i++) | |
811 | { | |
e2afb3b6 | 812 | TParticle* particle = dynamic_cast<TParticle*>(particles[i]); |
9e1a0ddb | 813 | if (particle) { |
814 | printf("-> %d ",i); particle->Print(); | |
815 | printf("--------------------------------------------------------------\n"); | |
816 | } | |
817 | else { | |
818 | printf("-> %d Particle not loaded.\n",i); | |
819 | printf("--------------------------------------------------------------\n"); | |
820 | } | |
821 | } | |
822 | printf( | |
823 | "\n=======================================================================\n\n"); | |
824 | } | |
825 | ||
826 | // | |
827 | // protected methods | |
828 | // | |
829 | ||
830 | //_____________________________________________________________________________ | |
831 | void AliStack::CleanParents() | |
832 | { | |
833 | // | |
834 | // Clean particles stack | |
835 | // Set parent/daughter relations | |
836 | // | |
837 | ||
838 | TObjArray &particles = *fParticleMap; | |
839 | TParticle *part; | |
840 | int i; | |
841 | for(i=0; i<fHgwmk+1; i++) { | |
e2afb3b6 | 842 | part = dynamic_cast<TParticle*>(particles.At(i)); |
9e1a0ddb | 843 | if(part) if(!part->TestBit(kDaughtersBit)) { |
844 | part->SetFirstDaughter(-1); | |
845 | part->SetLastDaughter(-1); | |
846 | } | |
847 | } | |
848 | } | |
849 | ||
850 | //_____________________________________________________________________________ | |
851 | TParticle* AliStack::GetNextParticle() | |
852 | { | |
853 | // | |
854 | // Return next particle from stack of particles | |
855 | // | |
856 | ||
857 | TParticle* particle = 0; | |
858 | ||
859 | // search secondaries | |
860 | //for(Int_t i=fNtrack-1; i>=0; i--) { | |
861 | for(Int_t i=fNtrack-1; i>fHgwmk; i--) { | |
e2afb3b6 | 862 | particle = dynamic_cast<TParticle*>(fParticleMap->At(i)); |
9e1a0ddb | 863 | if ((particle) && (!particle->TestBit(kDoneBit))) { |
864 | fCurrent=i; | |
865 | //cout << "GetNextParticle() - secondary " | |
866 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
867 | return particle; | |
868 | } | |
869 | } | |
870 | ||
871 | // take next primary if all secondaries were done | |
872 | while (fCurrentPrimary>=0) { | |
873 | fCurrent = fCurrentPrimary; | |
e2afb3b6 | 874 | particle = dynamic_cast<TParticle*>(fParticleMap->At(fCurrentPrimary--)); |
9e1a0ddb | 875 | if ((particle) && (!particle->TestBit(kDoneBit))) { |
876 | //cout << "GetNextParticle() - primary " | |
877 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
878 | return particle; | |
879 | } | |
880 | } | |
881 | ||
882 | // nothing to be tracked | |
883 | fCurrent = -1; | |
884 | //cout << "GetNextParticle() - none " | |
885 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
886 | return particle; | |
887 | } | |
888 | ||
889 | //__________________________________________________________________________________________ | |
e2afb3b6 | 890 | void AliStack::MakeTree(Int_t event, const char * /*file*/) |
9e1a0ddb | 891 | { |
892 | // | |
893 | // Make Kine tree and creates branch for writing particles | |
894 | // | |
895 | TBranch *branch=0; | |
896 | // Make Kinematics Tree | |
897 | char hname[30]; | |
9e1a0ddb | 898 | if (!fTreeK) { |
899 | sprintf(hname,"TreeK%d",event); | |
900 | fTreeK = new TTree(hname,"Kinematics"); | |
901 | // Create a branch for particles | |
d0f40f23 | 902 | branch = fTreeK->Branch("Particles", "TParticle", &fParticleBuffer, 4000); |
9e1a0ddb | 903 | fTreeK->Write(0,TObject::kOverwrite); |
904 | } | |
905 | } | |
906 | ||
81694e6a | 907 | //_____________________________________________________________________________ |
9e1a0ddb | 908 | void AliStack::BeginEvent(Int_t event) |
909 | { | |
910 | // start a new event | |
911 | // | |
912 | // | |
913 | fNprimary = 0; | |
914 | fNtrack = 0; | |
915 | ||
916 | char hname[30]; | |
917 | if(fTreeK) { | |
918 | fTreeK->Reset(); | |
919 | sprintf(hname,"TreeK%d",event); | |
920 | fTreeK->SetName(hname); | |
921 | } | |
922 | } | |
923 | ||
81694e6a | 924 | //_____________________________________________________________________________ |
9e1a0ddb | 925 | void AliStack::FinishRun() |
926 | { | |
927 | // Clean TreeK information | |
928 | if (fTreeK) { | |
929 | delete fTreeK; fTreeK = 0; | |
930 | } | |
931 | } | |
932 | ||
cec14bc5 | 933 | Bool_t AliStack::GetEvent(Int_t event) |
9e1a0ddb | 934 | { |
935 | // | |
936 | // Get new event from TreeK | |
ccf7a81f | 937 | |
9e1a0ddb | 938 | // Reset/Create the particle stack |
939 | if (fTreeK) delete fTreeK; | |
940 | ||
941 | // Get Kine Tree from file | |
942 | char treeName[20]; | |
943 | sprintf(treeName,"TreeK%d",event); | |
e2afb3b6 | 944 | fTreeK = dynamic_cast<TTree*>(gDirectory->Get(treeName)); |
9e1a0ddb | 945 | |
ccf7a81f | 946 | if (fTreeK) |
947 | fTreeK->SetBranchAddress("Particles", &fParticleBuffer); | |
948 | else { | |
3d8c4988 | 949 | // Error("GetEvent","cannot find Kine Tree for event:%d\n",event); |
950 | Warning("GetEvent","cannot find Kine Tree for event:%d\n",event); | |
ccf7a81f | 951 | return kFALSE; |
952 | } | |
953 | // printf("\n primaries %d", fNprimary); | |
954 | // printf("\n tracks %d", fNtrack); | |
955 | ||
e2afb3b6 | 956 | Int_t size = static_cast<Int_t>(fTreeK->GetEntries()); |
9e1a0ddb | 957 | ResetArrays(size); |
ccf7a81f | 958 | return kTRUE; |
9e1a0ddb | 959 | } |