]>
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 | $Log$ | |
98490ea9 | 18 | Revision 1.26 2002/10/29 14:26:49 hristov |
19 | Code clean-up (F.Carminati) | |
20 | ||
e2afb3b6 | 21 | Revision 1.25 2002/10/22 15:21:39 hristov |
22 | New methods for more effective access of particles from TreeK (J.Chudoba) | |
23 | ||
e94530da | 24 | Revision 1.24 2002/10/22 15:02:15 alibrary |
25 | Introducing Riostream.h | |
26 | ||
b16a1b1e | 27 | Revision 1.23 2002/10/14 14:57:32 hristov |
28 | Merging the VirtualMC branch to the main development branch (HEAD) | |
29 | ||
b9d0a01d | 30 | Revision 1.19.4.2 2002/08/28 15:06:52 alibrary |
31 | Updating to v3-09-01 | |
32 | ||
33 | Revision 1.19.4.1 2002/06/10 14:43:06 hristov | |
34 | Merged with v3-08-02 | |
35 | ||
ae9676e4 | 36 | Revision 1.21 2002/05/28 14:24:57 hristov |
37 | Correct warning messages | |
38 | ||
3d8c4988 | 39 | Revision 1.20 2002/04/30 11:47:30 morsch |
40 | KeepPhysics method called by PurifyKine added (N. Carrer, A.M.) | |
41 | ||
e44c5340 | 42 | Revision 1.19 2002/03/12 11:06:03 morsch |
43 | Add particle status code to argument list of SetTrack(..). | |
44 | ||
47c8bcbe | 45 | Revision 1.18 2002/02/20 16:14:41 hristov |
46 | fParticleBuffer points to object which doesn't belong to AliStack, do not delete it (J.Chudoba) | |
47 | ||
ba9938e6 | 48 | Revision 1.17 2001/12/05 08:51:56 hristov |
49 | The default constructor now creates no objects (thanks to r.Brun). Some corrections required by the previous changes. | |
50 | ||
be3380a3 | 51 | Revision 1.16 2001/11/20 09:27:55 hristov |
52 | Possibility to investigate a primary of not yet loaded particle (I.Hrivnacova) | |
53 | ||
f5f55563 | 54 | Revision 1.15 2001/09/04 15:10:37 hristov |
55 | Additional protection is included to avoid some problems using Hijing | |
56 | ||
1305ca2f | 57 | Revision 1.14 2001/08/30 09:44:06 hristov |
58 | VertexSource_t added to avoid the warnings | |
59 | ||
da2af24c | 60 | Revision 1.13 2001/08/29 13:31:42 morsch |
61 | Protection against (fTreeK == 0) in destructor. | |
62 | ||
cfb2cc9c | 63 | Revision 1.12 2001/07/27 13:03:13 hristov |
64 | Default Branch split level set to 99 | |
65 | ||
d0f40f23 | 66 | Revision 1.11 2001/07/27 12:34:20 jchudoba |
67 | remove the dummy argument in GetEvent method | |
68 | ||
cec14bc5 | 69 | Revision 1.10 2001/07/20 10:13:54 morsch |
70 | In Particle(Int_t) use GetEntriesFast to speed up the procedure. | |
71 | ||
911a3148 | 72 | Revision 1.9 2001/07/03 08:10:57 hristov |
73 | J.Chudoba's changes merged correctly with the HEAD | |
74 | ||
d1750cff | 75 | Revision 1.6 2001/05/31 06:59:06 fca |
76 | Clean setting and deleting of fParticleBuffer | |
77 | ||
17f4a3d9 | 78 | Revision 1.5 2001/05/30 12:18:46 hristov |
79 | Loop variables declared once | |
80 | ||
3ab6f951 | 81 | Revision 1.4 2001/05/25 07:25:20 hristov |
82 | AliStack destructor corrected (I.Hrivnacova) | |
83 | ||
81694e6a | 84 | Revision 1.3 2001/05/22 14:33:16 hristov |
85 | Minor changes | |
86 | ||
ed54bf31 | 87 | Revision 1.2 2001/05/17 05:49:39 fca |
88 | Reset pointers to daughters | |
89 | ||
76969085 | 90 | Revision 1.1 2001/05/16 14:57:22 alibrary |
91 | New files for folders and Stack | |
92 | ||
9e1a0ddb | 93 | */ |
94 | ||
95 | /////////////////////////////////////////////////////////////////////////////// | |
96 | // // | |
97 | // Particles stack class | |
98 | // // | |
99 | /////////////////////////////////////////////////////////////////////////////// | |
100 | ||
b16a1b1e | 101 | #include <Riostream.h> |
9e1a0ddb | 102 | |
103 | #include <TObjArray.h> | |
104 | #include <TParticle.h> | |
105 | #include <TTree.h> | |
106 | #include <TFile.h> | |
107 | #include <TFolder.h> | |
108 | #include <TROOT.h> | |
109 | ||
110 | #include "AliStack.h" | |
111 | #include "AliRun.h" | |
112 | #include "AliModule.h" | |
113 | #include "AliHit.h" | |
9e1a0ddb | 114 | |
115 | ClassImp(AliStack) | |
116 | ||
e2afb3b6 | 117 | //_______________________________________________________________________ |
118 | AliStack::AliStack(): | |
119 | fParticles(0), | |
120 | fParticleMap(0), | |
121 | fParticleFileMap(0), | |
122 | fParticleBuffer(0), | |
123 | fTreeK(0), | |
124 | fNtrack(0), | |
125 | fNprimary(0), | |
126 | fCurrent(-1), | |
127 | fCurrentPrimary(-1), | |
128 | fHgwmk(0), | |
129 | fLoadPoint(0) | |
9e1a0ddb | 130 | { |
131 | // | |
e2afb3b6 | 132 | // Default constructor |
9e1a0ddb | 133 | // |
9e1a0ddb | 134 | } |
135 | ||
e2afb3b6 | 136 | //_______________________________________________________________________ |
137 | AliStack::AliStack(Int_t size): | |
138 | fParticles(new TClonesArray("TParticle",1000)), | |
139 | fParticleMap(new TObjArray(size)), | |
140 | fParticleFileMap(0), | |
141 | fParticleBuffer(0), | |
142 | fTreeK(0), | |
143 | fNtrack(0), | |
144 | fNprimary(0), | |
145 | fCurrent(-1), | |
146 | fCurrentPrimary(-1), | |
147 | fHgwmk(0), | |
148 | fLoadPoint(0) | |
149 | { | |
150 | // | |
151 | // Constructor | |
152 | // | |
153 | } | |
9e1a0ddb | 154 | |
e2afb3b6 | 155 | //_______________________________________________________________________ |
156 | AliStack::AliStack(const AliStack& st): | |
157 | TVirtualMCStack(st), | |
158 | fParticles(0), | |
159 | fParticleMap(0), | |
160 | fParticleFileMap(0), | |
161 | fParticleBuffer(0), | |
162 | fTreeK(0), | |
163 | fNtrack(0), | |
164 | fNprimary(0), | |
165 | fCurrent(-1), | |
166 | fCurrentPrimary(-1), | |
167 | fHgwmk(0), | |
168 | fLoadPoint(0) | |
9e1a0ddb | 169 | { |
170 | // | |
e2afb3b6 | 171 | // Copy constructor |
9e1a0ddb | 172 | // |
e2afb3b6 | 173 | st.Copy(*this); |
9e1a0ddb | 174 | } |
175 | ||
e2afb3b6 | 176 | //_______________________________________________________________________ |
177 | void AliStack::Copy(AliStack&) const | |
178 | { | |
179 | Fatal("Copy","Not implemented!\n"); | |
180 | } | |
9e1a0ddb | 181 | |
e2afb3b6 | 182 | //_______________________________________________________________________ |
9e1a0ddb | 183 | AliStack::~AliStack() |
184 | { | |
185 | // | |
186 | // Destructor | |
187 | // | |
188 | ||
189 | if (fParticles) { | |
190 | fParticles->Delete(); | |
191 | delete fParticles; | |
192 | } | |
193 | delete fParticleMap; | |
e2afb3b6 | 194 | delete fTreeK; |
9e1a0ddb | 195 | } |
196 | ||
197 | // | |
198 | // public methods | |
199 | // | |
200 | ||
201 | //_____________________________________________________________________________ | |
202 | void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom, | |
203 | Float_t *vpos, Float_t *polar, Float_t tof, | |
98490ea9 | 204 | TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) |
9e1a0ddb | 205 | { |
206 | // | |
207 | // Load a track on the stack | |
208 | // | |
209 | // done 0 if the track has to be transported | |
210 | // 1 if not | |
211 | // parent identifier of the parent track. -1 for a primary | |
212 | // pdg particle code | |
213 | // pmom momentum GeV/c | |
214 | // vpos position | |
215 | // polar polarisation | |
216 | // tof time of flight in seconds | |
217 | // mecha production mechanism | |
218 | // ntr on output the number of the track stored | |
219 | // | |
220 | ||
9e1a0ddb | 221 | // const Float_t tlife=0; |
222 | ||
223 | // | |
224 | // Here we get the static mass | |
225 | // For MC is ok, but a more sophisticated method could be necessary | |
226 | // if the calculated mass is required | |
227 | // also, this method is potentially dangerous if the mass | |
228 | // used in the MC is not the same of the PDG database | |
229 | // | |
b9d0a01d | 230 | Float_t mass = TDatabasePDG::Instance()->GetParticle(pdg)->Mass(); |
9e1a0ddb | 231 | Float_t e=TMath::Sqrt(mass*mass+pmom[0]*pmom[0]+ |
232 | pmom[1]*pmom[1]+pmom[2]*pmom[2]); | |
233 | ||
ccf7a81f | 234 | // 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", |
235 | // mass,e,fNtrack,pdg,parent,done,vpos[0],vpos[1],vpos[2],pmom[0],pmom[1],pmom[2],kS); | |
236 | ||
9e1a0ddb | 237 | |
b9d0a01d | 238 | SetTrack(done, parent, pdg, pmom[0], pmom[1], pmom[2], e, |
239 | vpos[0], vpos[1], vpos[2], tof, polar[0], polar[1], polar[2], | |
240 | mech, ntr, weight, is); | |
9e1a0ddb | 241 | } |
242 | ||
243 | //_____________________________________________________________________________ | |
244 | void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg, | |
245 | Double_t px, Double_t py, Double_t pz, Double_t e, | |
246 | Double_t vx, Double_t vy, Double_t vz, Double_t tof, | |
247 | Double_t polx, Double_t poly, Double_t polz, | |
98490ea9 | 248 | TMCProcess mech, Int_t &ntr, Double_t weight, Int_t is) |
9e1a0ddb | 249 | { |
250 | // | |
251 | // Load a track on the stack | |
252 | // | |
253 | // done 0 if the track has to be transported | |
254 | // 1 if not | |
255 | // parent identifier of the parent track. -1 for a primary | |
256 | // pdg particle code | |
257 | // kS generation status code | |
258 | // px, py, pz momentum GeV/c | |
259 | // vx, vy, vz position | |
260 | // polar polarisation | |
261 | // tof time of flight in seconds | |
262 | // mech production mechanism | |
263 | // ntr on output the number of the track stored | |
264 | // | |
265 | // New method interface: | |
266 | // arguments were changed to be in correspondence with TParticle | |
267 | // constructor. | |
268 | // Note: the energy is not calculated from the static mass but | |
269 | // it is passed by argument e. | |
270 | ||
271 | ||
9e1a0ddb | 272 | const Int_t kFirstDaughter=-1; |
273 | const Int_t kLastDaughter=-1; | |
274 | ||
275 | TClonesArray &particles = *fParticles; | |
276 | TParticle* particle | |
277 | = new(particles[fLoadPoint++]) | |
47c8bcbe | 278 | TParticle(pdg, is, parent, -1, kFirstDaughter, kLastDaughter, |
9e1a0ddb | 279 | px, py, pz, e, vx, vy, vz, tof); |
280 | ||
281 | particle->SetPolarisation(polx, poly, polz); | |
282 | particle->SetWeight(weight); | |
283 | particle->SetUniqueID(mech); | |
284 | ||
285 | if(!done) particle->SetBit(kDoneBit); | |
286 | ||
287 | // Declare that the daughter information is valid | |
288 | particle->SetBit(kDaughtersBit); | |
289 | // Add the particle to the stack | |
290 | fParticleMap->AddAtAndExpand(particle, fNtrack);//CHECK!! | |
291 | ||
292 | if(parent>=0) { | |
e2afb3b6 | 293 | particle = dynamic_cast<TParticle*>(fParticleMap->At(parent)); |
1305ca2f | 294 | if (particle) { |
295 | particle->SetLastDaughter(fNtrack); | |
296 | if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack); | |
297 | } | |
298 | else { | |
299 | printf("Error in AliStack::SetTrack: Parent %d does not exist\n",parent); | |
300 | } | |
9e1a0ddb | 301 | } |
302 | else { | |
303 | // | |
304 | // This is a primary track. Set high water mark for this event | |
305 | fHgwmk = fNtrack; | |
306 | // | |
307 | // Set also number if primary tracks | |
308 | fNprimary = fHgwmk+1; | |
309 | fCurrentPrimary++; | |
310 | } | |
311 | ntr = fNtrack++; | |
312 | } | |
313 | ||
314 | //_____________________________________________________________________________ | |
b9d0a01d | 315 | TParticle* AliStack::GetNextTrack(Int_t& itrack) |
316 | { | |
317 | // | |
318 | // Returns next track from stack of particles | |
319 | // | |
320 | ||
321 | ||
322 | TParticle* track = GetNextParticle(); | |
323 | ||
324 | if (track) { | |
325 | itrack = fCurrent; | |
326 | track->SetBit(kDoneBit); | |
327 | } | |
328 | else | |
329 | itrack = -1; | |
330 | ||
331 | return track; | |
332 | } | |
333 | ||
334 | /* | |
335 | //_____________________________________________________________________________ | |
336 | void AliStack::GetNextTrack(Int_t& itrack, Int_t& pdg, | |
337 | Double_t& px, Double_t& py, Double_t& pz, Double_t& e, | |
338 | Double_t& vx, Double_t& vy, Double_t& vz, Double_t& tof, | |
339 | Double_t& polx, Double_t& poly, Double_t& polz) | |
9e1a0ddb | 340 | { |
341 | // | |
342 | // Return next track from stack of particles | |
343 | // | |
344 | ||
345 | ||
346 | TParticle* track = GetNextParticle(); | |
ccf7a81f | 347 | // cout << "GetNextTrack():" << fCurrent << fNprimary << endl; |
9e1a0ddb | 348 | |
b9d0a01d | 349 | if (track) { |
350 | itrack = fCurrent; | |
351 | pdg = track->GetPdgCode(); | |
352 | px = track->Px(); | |
353 | py = track->Py(); | |
354 | pz = track->Pz(); | |
355 | e = track->Energy(); | |
356 | vx = track->Vx(); | |
357 | vy = track->Vy(); | |
358 | vz = track->Vz(); | |
359 | tof = track->T(); | |
9e1a0ddb | 360 | TVector3 pol; |
361 | track->GetPolarisation(pol); | |
b9d0a01d | 362 | polx = pol.X(); |
363 | poly = pol.Y(); | |
364 | polz = pol.Z(); | |
9e1a0ddb | 365 | track->SetBit(kDoneBit); |
ccf7a81f | 366 | // cout << "Filled params" << endl; |
9e1a0ddb | 367 | } |
368 | else | |
b9d0a01d | 369 | itrack = -1; |
9e1a0ddb | 370 | |
371 | // | |
372 | // stop and start timer when we start a primary track | |
373 | Int_t nprimaries = fNprimary; | |
374 | if (fCurrent >= nprimaries) return; | |
375 | if (fCurrent < nprimaries-1) { | |
376 | fTimer.Stop(); | |
377 | track=(TParticle*) fParticleMap->At(fCurrent+1); | |
378 | // track->SetProcessTime(fTimer.CpuTime()); | |
379 | } | |
380 | fTimer.Start(); | |
381 | } | |
382 | ||
b9d0a01d | 383 | */ |
384 | //_____________________________________________________________________________ | |
385 | TParticle* AliStack::GetPrimaryForTracking(Int_t i) | |
386 | { | |
387 | // | |
388 | // Returns i-th primary particle if it is flagged to be tracked, | |
389 | // 0 otherwise | |
390 | // | |
391 | ||
392 | TParticle* particle = Particle(i); | |
393 | ||
394 | if (!particle->TestBit(kDoneBit)) | |
395 | return particle; | |
396 | else | |
397 | return 0; | |
398 | } | |
399 | ||
9e1a0ddb | 400 | |
401 | //_____________________________________________________________________________ | |
402 | void AliStack::PurifyKine() | |
403 | { | |
404 | // | |
405 | // Compress kinematic tree keeping only flagged particles | |
406 | // and renaming the particle id's in all the hits | |
407 | // | |
408 | ||
409 | TObjArray &particles = *fParticleMap; | |
410 | int nkeep=fHgwmk+1, parent, i; | |
411 | TParticle *part, *father; | |
412 | TArrayI map(particles.GetLast()+1); | |
413 | ||
414 | // Save in Header total number of tracks before compression | |
415 | ||
416 | // If no tracks generated return now | |
417 | if(fHgwmk+1 == fNtrack) return; | |
418 | ||
9e1a0ddb | 419 | // First pass, invalid Daughter information |
420 | for(i=0; i<fNtrack; i++) { | |
421 | // Preset map, to be removed later | |
422 | if(i<=fHgwmk) map[i]=i ; | |
423 | else { | |
424 | map[i] = -99; | |
e2afb3b6 | 425 | if((part=dynamic_cast<TParticle*>(particles.At(i)))) { |
e44c5340 | 426 | // |
427 | // Check of this track should be kept for physics reasons | |
428 | if (KeepPhysics(part)) KeepTrack(i); | |
429 | // | |
76969085 | 430 | part->ResetBit(kDaughtersBit); |
431 | part->SetFirstDaughter(-1); | |
432 | part->SetLastDaughter(-1); | |
433 | } | |
9e1a0ddb | 434 | } |
435 | } | |
436 | // Invalid daughter information for the parent of the first particle | |
437 | // generated. This may or may not be the current primary according to | |
438 | // whether decays have been recorded among the primaries | |
e2afb3b6 | 439 | part = dynamic_cast<TParticle*>(particles.At(fHgwmk+1)); |
9e1a0ddb | 440 | particles.At(part->GetFirstMother())->ResetBit(kDaughtersBit); |
441 | // Second pass, build map between old and new numbering | |
442 | for(i=fHgwmk+1; i<fNtrack; i++) { | |
443 | if(particles.At(i)->TestBit(kKeepBit)) { | |
444 | ||
445 | // This particle has to be kept | |
446 | map[i]=nkeep; | |
447 | // If old and new are different, have to move the pointer | |
448 | if(i!=nkeep) particles[nkeep]=particles.At(i); | |
e2afb3b6 | 449 | part = dynamic_cast<TParticle*>(particles.At(nkeep)); |
9e1a0ddb | 450 | |
451 | // as the parent is always *before*, it must be already | |
452 | // in place. This is what we are checking anyway! | |
453 | if((parent=part->GetFirstMother())>fHgwmk) | |
454 | if(map[parent]==-99) Fatal("PurifyKine","map[%d] = -99!\n",parent); | |
455 | else part->SetFirstMother(map[parent]); | |
456 | ||
457 | nkeep++; | |
458 | } | |
459 | } | |
460 | ||
461 | // Fix daughters information | |
462 | for (i=fHgwmk+1; i<nkeep; i++) { | |
e2afb3b6 | 463 | part = dynamic_cast<TParticle*>(particles.At(i)); |
9e1a0ddb | 464 | parent = part->GetFirstMother(); |
465 | if(parent>=0) { | |
e2afb3b6 | 466 | father = dynamic_cast<TParticle*>(particles.At(parent)); |
9e1a0ddb | 467 | if(father->TestBit(kDaughtersBit)) { |
468 | ||
469 | if(i<father->GetFirstDaughter()) father->SetFirstDaughter(i); | |
470 | if(i>father->GetLastDaughter()) father->SetLastDaughter(i); | |
471 | } else { | |
472 | // Initialise daughters info for first pass | |
473 | father->SetFirstDaughter(i); | |
474 | father->SetLastDaughter(i); | |
475 | father->SetBit(kDaughtersBit); | |
476 | } | |
477 | } | |
478 | } | |
479 | ||
480 | // Now loop on all registered hit lists | |
481 | TList* hitLists = gAlice->GetHitLists(); | |
482 | TIter next(hitLists); | |
483 | TCollection *hitList; | |
e2afb3b6 | 484 | while((hitList = dynamic_cast<TCollection*>(next()))) { |
9e1a0ddb | 485 | TIter nexthit(hitList); |
486 | AliHit *hit; | |
e2afb3b6 | 487 | while((hit = dynamic_cast<AliHit*>(nexthit()))) { |
9e1a0ddb | 488 | hit->SetTrack(map[hit->GetTrack()]); |
489 | } | |
490 | } | |
491 | ||
492 | // | |
493 | // This for detectors which have a special mapping mechanism | |
494 | // for hits, such as TPC and TRD | |
495 | // | |
496 | ||
497 | TObjArray* modules = gAlice->Modules(); | |
498 | TIter nextmod(modules); | |
499 | AliModule *detector; | |
e2afb3b6 | 500 | while((detector = dynamic_cast<AliModule*>(nextmod()))) { |
9e1a0ddb | 501 | detector->RemapTrackHitIDs(map.GetArray()); |
ae9676e4 | 502 | detector->RemapTrackReferencesIDs(map.GetArray()); |
9e1a0ddb | 503 | } |
504 | ||
505 | // Now the output bit, from fHgwmk to nkeep we write everything and we erase | |
506 | if(nkeep>fParticleFileMap.GetSize()) fParticleFileMap.Set(Int_t (nkeep*1.5)); | |
507 | ||
508 | for (i=fHgwmk+1; i<nkeep; ++i) { | |
e2afb3b6 | 509 | fParticleBuffer = dynamic_cast<TParticle*>(particles.At(i)); |
510 | fParticleFileMap[i]=static_cast<Int_t>(fTreeK->GetEntries()); | |
9e1a0ddb | 511 | fTreeK->Fill(); |
17f4a3d9 | 512 | particles[i]=fParticleBuffer=0; |
9e1a0ddb | 513 | } |
514 | ||
515 | for (i=nkeep; i<fNtrack; ++i) particles[i]=0; | |
516 | ||
76969085 | 517 | Int_t toshrink = fNtrack-fHgwmk-1; |
9e1a0ddb | 518 | fLoadPoint-=toshrink; |
519 | for(i=fLoadPoint; i<fLoadPoint+toshrink; ++i) fParticles->RemoveAt(i); | |
520 | ||
521 | fNtrack=nkeep; | |
522 | fHgwmk=nkeep-1; | |
523 | // delete [] map; | |
524 | } | |
525 | ||
e44c5340 | 526 | Bool_t AliStack::KeepPhysics(TParticle* part) |
527 | { | |
528 | // | |
529 | // Some particles have to kept on the stack for reasons motivated | |
530 | // by physics analysis. Decision is put here. | |
531 | // | |
532 | Bool_t keep = kFALSE; | |
533 | // | |
534 | // Keep first-generation daughter from primaries with heavy flavor | |
535 | // | |
536 | Int_t parent = part->GetFirstMother(); | |
537 | if (parent >= 0 && parent <= fHgwmk) { | |
e2afb3b6 | 538 | TParticle* father = dynamic_cast<TParticle*>(Particles()->At(parent)); |
e44c5340 | 539 | Int_t kf = father->GetPdgCode(); |
540 | kf = TMath::Abs(kf); | |
541 | Int_t kfl = kf; | |
542 | // meson ? | |
543 | if (kfl > 10) kfl/=100; | |
544 | // baryon | |
545 | if (kfl > 10) kfl/=10; | |
546 | if (kfl > 10) kfl/=10; | |
547 | if (kfl >= 4) { | |
548 | keep = kTRUE; | |
549 | } | |
550 | } | |
551 | return keep; | |
552 | } | |
553 | ||
9e1a0ddb | 554 | //_____________________________________________________________________________ |
555 | void AliStack::FinishEvent() | |
556 | { | |
557 | // | |
558 | // Write out the kinematics that was not yet filled | |
559 | // | |
560 | ||
561 | // Update event header | |
562 | ||
563 | ||
564 | if (!fTreeK) { | |
565 | // Fatal("FinishEvent", "No kinematics tree is defined."); | |
566 | // Don't panic this is a probably a lego run | |
567 | return; | |
568 | ||
569 | } | |
570 | ||
571 | CleanParents(); | |
572 | if(fTreeK->GetEntries() ==0) { | |
573 | // set the fParticleFileMap size for the first time | |
574 | fParticleFileMap.Set(fHgwmk+1); | |
575 | } | |
576 | ||
577 | Bool_t allFilled = kFALSE; | |
578 | TObject *part; | |
579 | for(Int_t i=0; i<fHgwmk+1; ++i) | |
580 | if((part=fParticleMap->At(i))) { | |
e2afb3b6 | 581 | fParticleBuffer = dynamic_cast<TParticle*>(part); |
582 | fParticleFileMap[i]= static_cast<Int_t>(fTreeK->GetEntries()); | |
9e1a0ddb | 583 | fTreeK->Fill(); |
da2af24c | 584 | //PH (*fParticleMap)[i]=fParticleBuffer=0; |
585 | fParticleBuffer=0; | |
586 | fParticleMap->AddAt(0,i); | |
9e1a0ddb | 587 | |
588 | // When all primaries were filled no particle!=0 | |
589 | // should be left => to be removed later. | |
590 | if (allFilled) printf("Why != 0 part # %d?\n",i); | |
591 | } | |
592 | else { | |
593 | // // printf("Why = 0 part # %d?\n",i); => We know. | |
594 | // break; | |
595 | // we don't break now in order to be sure there is no | |
596 | // particle !=0 left. | |
597 | // To be removed later and replaced with break. | |
598 | if(!allFilled) allFilled = kTRUE; | |
599 | } | |
ccf7a81f | 600 | // cout << "Nof particles: " << fNtrack << endl; |
9e1a0ddb | 601 | //Reset(); |
602 | } | |
603 | ||
604 | //_____________________________________________________________________________ | |
605 | void AliStack::FlagTrack(Int_t track) | |
606 | { | |
607 | // | |
608 | // Flags a track and all its family tree to be kept | |
609 | // | |
610 | ||
611 | TParticle *particle; | |
612 | ||
613 | Int_t curr=track; | |
614 | while(1) { | |
e2afb3b6 | 615 | particle=dynamic_cast<TParticle*>(fParticleMap->At(curr)); |
9e1a0ddb | 616 | |
617 | // If the particle is flagged the three from here upward is saved already | |
618 | if(particle->TestBit(kKeepBit)) return; | |
619 | ||
620 | // Save this particle | |
621 | particle->SetBit(kKeepBit); | |
622 | ||
623 | // Move to father if any | |
624 | if((curr=particle->GetFirstMother())==-1) return; | |
625 | } | |
626 | } | |
627 | ||
628 | //_____________________________________________________________________________ | |
ed54bf31 | 629 | void AliStack::KeepTrack(Int_t track) |
9e1a0ddb | 630 | { |
631 | // | |
632 | // Flags a track to be kept | |
633 | // | |
634 | ||
635 | fParticleMap->At(track)->SetBit(kKeepBit); | |
636 | } | |
637 | ||
638 | //_____________________________________________________________________________ | |
639 | void AliStack::Reset(Int_t size) | |
640 | { | |
641 | // | |
642 | // Resets stack | |
643 | // | |
644 | ||
645 | fNtrack=0; | |
646 | fNprimary=0; | |
647 | fHgwmk=0; | |
648 | fLoadPoint=0; | |
649 | fCurrent = -1; | |
650 | ResetArrays(size); | |
651 | } | |
652 | ||
653 | //_____________________________________________________________________________ | |
654 | void AliStack::ResetArrays(Int_t size) | |
655 | { | |
656 | // | |
657 | // Resets stack arrays | |
658 | // | |
659 | ||
be3380a3 | 660 | if (fParticles) |
661 | fParticles->Clear(); | |
662 | else | |
663 | fParticles = new TClonesArray("TParticle",1000); | |
664 | if (fParticleMap) { | |
665 | fParticleMap->Clear(); | |
666 | if (size>0) fParticleMap->Expand(size);} | |
667 | else | |
668 | fParticleMap = new TObjArray(size); | |
9e1a0ddb | 669 | } |
670 | ||
671 | //_____________________________________________________________________________ | |
e2afb3b6 | 672 | void AliStack::SetHighWaterMark(Int_t) |
9e1a0ddb | 673 | { |
674 | // | |
675 | // Set high water mark for last track in event | |
676 | // | |
677 | ||
678 | fHgwmk = fNtrack-1; | |
679 | fCurrentPrimary=fHgwmk; | |
680 | ||
681 | // Set also number of primary tracks | |
682 | fNprimary = fHgwmk+1; | |
683 | fNtrack = fHgwmk+1; | |
684 | } | |
685 | ||
686 | //_____________________________________________________________________________ | |
687 | TParticle* AliStack::Particle(Int_t i) | |
688 | { | |
689 | // | |
690 | // Return particle with specified ID | |
691 | ||
da2af24c | 692 | //PH if(!(*fParticleMap)[i]) { |
693 | if(!fParticleMap->At(i)) { | |
911a3148 | 694 | Int_t nentries = fParticles->GetEntriesFast(); |
9e1a0ddb | 695 | // algorithmic way of getting entry index |
696 | // (primary particles are filled after secondaries) | |
e94530da | 697 | Int_t entry = TreeKEntry(i); |
9e1a0ddb | 698 | // check whether algorithmic way and |
699 | // and the fParticleFileMap[i] give the same; | |
700 | // give the fatal error if not | |
701 | if (entry != fParticleFileMap[i]) { | |
702 | Fatal("Particle", | |
703 | "!! The algorithmic way and map are different: !!\n entry: %d map: %d", | |
704 | entry, fParticleFileMap[i]); | |
705 | } | |
706 | ||
707 | fTreeK->GetEntry(entry); | |
708 | new ((*fParticles)[nentries]) TParticle(*fParticleBuffer); | |
709 | fParticleMap->AddAt((*fParticles)[nentries],i); | |
710 | } | |
e2afb3b6 | 711 | //PH return dynamic_cast<TParticle *>((*fParticleMap)[i]); |
712 | return dynamic_cast<TParticle*>(fParticleMap->At(i)); | |
9e1a0ddb | 713 | } |
714 | ||
e94530da | 715 | //_____________________________________________________________________________ |
716 | TParticle* AliStack::ParticleFromTreeK(Int_t id) const | |
717 | { | |
718 | // | |
719 | // return pointer to TParticle with label id | |
720 | // | |
721 | Int_t entry; | |
722 | if ((entry = TreeKEntry(id)) < 0) return 0; | |
723 | if (fTreeK->GetEntry(entry)<=0) return 0; | |
724 | return fParticleBuffer; | |
725 | } | |
726 | ||
727 | //_____________________________________________________________________________ | |
728 | Int_t AliStack::TreeKEntry(Int_t id) const | |
729 | { | |
730 | // | |
731 | // return entry number in the TreeK for particle with label id | |
732 | // return negative number if label>fNtrack | |
733 | // | |
734 | Int_t entry; | |
735 | if (id<fNprimary) | |
736 | entry = id+fNtrack-fNprimary; | |
737 | else | |
738 | entry = id-fNprimary; | |
739 | return entry; | |
740 | } | |
741 | ||
9e1a0ddb | 742 | //_____________________________________________________________________________ |
f5f55563 | 743 | Int_t AliStack::GetPrimary(Int_t id) |
9e1a0ddb | 744 | { |
745 | // | |
746 | // Return number of primary that has generated track | |
747 | // | |
748 | ||
749 | int current, parent; | |
9e1a0ddb | 750 | // |
751 | parent=id; | |
752 | while (1) { | |
753 | current=parent; | |
f5f55563 | 754 | parent=Particle(current)->GetFirstMother(); |
9e1a0ddb | 755 | if(parent<0) return current; |
756 | } | |
757 | } | |
758 | ||
759 | //_____________________________________________________________________________ | |
760 | void AliStack::DumpPart (Int_t i) const | |
761 | { | |
762 | // | |
763 | // Dumps particle i in the stack | |
764 | // | |
765 | ||
e2afb3b6 | 766 | //PH dynamic_cast<TParticle*>((*fParticleMap)[i])->Print(); |
767 | dynamic_cast<TParticle*>(fParticleMap->At(i))->Print(); | |
9e1a0ddb | 768 | } |
769 | ||
770 | //_____________________________________________________________________________ | |
771 | void AliStack::DumpPStack () | |
772 | { | |
773 | // | |
774 | // Dumps the particle stack | |
775 | // | |
776 | ||
3ab6f951 | 777 | Int_t i; |
778 | ||
9e1a0ddb | 779 | printf( |
780 | "\n\n=======================================================================\n"); | |
3ab6f951 | 781 | for (i=0;i<fNtrack;i++) |
9e1a0ddb | 782 | { |
783 | TParticle* particle = Particle(i); | |
784 | if (particle) { | |
785 | printf("-> %d ",i); particle->Print(); | |
786 | printf("--------------------------------------------------------------\n"); | |
787 | } | |
788 | else | |
789 | Warning("DumpPStack", "No particle with id %d.", i); | |
790 | } | |
791 | ||
792 | printf( | |
793 | "\n=======================================================================\n\n"); | |
794 | ||
795 | // print particle file map | |
796 | printf("\nParticle file map: \n"); | |
3ab6f951 | 797 | for (i=0; i<fNtrack; i++) |
9e1a0ddb | 798 | printf(" %d th entry: %d \n",i,fParticleFileMap[i]); |
799 | } | |
800 | ||
801 | ||
802 | //_____________________________________________________________________________ | |
803 | void AliStack::DumpLoadedStack() const | |
804 | { | |
805 | // | |
806 | // Dumps the particle in the stack | |
807 | // that are loaded in memory. | |
808 | // | |
809 | ||
810 | TObjArray &particles = *fParticleMap; | |
811 | printf( | |
812 | "\n\n=======================================================================\n"); | |
813 | for (Int_t i=0;i<fNtrack;i++) | |
814 | { | |
e2afb3b6 | 815 | TParticle* particle = dynamic_cast<TParticle*>(particles[i]); |
9e1a0ddb | 816 | if (particle) { |
817 | printf("-> %d ",i); particle->Print(); | |
818 | printf("--------------------------------------------------------------\n"); | |
819 | } | |
820 | else { | |
821 | printf("-> %d Particle not loaded.\n",i); | |
822 | printf("--------------------------------------------------------------\n"); | |
823 | } | |
824 | } | |
825 | printf( | |
826 | "\n=======================================================================\n\n"); | |
827 | } | |
828 | ||
829 | // | |
830 | // protected methods | |
831 | // | |
832 | ||
833 | //_____________________________________________________________________________ | |
834 | void AliStack::CleanParents() | |
835 | { | |
836 | // | |
837 | // Clean particles stack | |
838 | // Set parent/daughter relations | |
839 | // | |
840 | ||
841 | TObjArray &particles = *fParticleMap; | |
842 | TParticle *part; | |
843 | int i; | |
844 | for(i=0; i<fHgwmk+1; i++) { | |
e2afb3b6 | 845 | part = dynamic_cast<TParticle*>(particles.At(i)); |
9e1a0ddb | 846 | if(part) if(!part->TestBit(kDaughtersBit)) { |
847 | part->SetFirstDaughter(-1); | |
848 | part->SetLastDaughter(-1); | |
849 | } | |
850 | } | |
851 | } | |
852 | ||
853 | //_____________________________________________________________________________ | |
854 | TParticle* AliStack::GetNextParticle() | |
855 | { | |
856 | // | |
857 | // Return next particle from stack of particles | |
858 | // | |
859 | ||
860 | TParticle* particle = 0; | |
861 | ||
862 | // search secondaries | |
863 | //for(Int_t i=fNtrack-1; i>=0; i--) { | |
864 | for(Int_t i=fNtrack-1; i>fHgwmk; i--) { | |
e2afb3b6 | 865 | particle = dynamic_cast<TParticle*>(fParticleMap->At(i)); |
9e1a0ddb | 866 | if ((particle) && (!particle->TestBit(kDoneBit))) { |
867 | fCurrent=i; | |
868 | //cout << "GetNextParticle() - secondary " | |
869 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
870 | return particle; | |
871 | } | |
872 | } | |
873 | ||
874 | // take next primary if all secondaries were done | |
875 | while (fCurrentPrimary>=0) { | |
876 | fCurrent = fCurrentPrimary; | |
e2afb3b6 | 877 | particle = dynamic_cast<TParticle*>(fParticleMap->At(fCurrentPrimary--)); |
9e1a0ddb | 878 | if ((particle) && (!particle->TestBit(kDoneBit))) { |
879 | //cout << "GetNextParticle() - primary " | |
880 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
881 | return particle; | |
882 | } | |
883 | } | |
884 | ||
885 | // nothing to be tracked | |
886 | fCurrent = -1; | |
887 | //cout << "GetNextParticle() - none " | |
888 | // << fNtrack << " " << fHgwmk << " " << fCurrent << endl; | |
889 | return particle; | |
890 | } | |
891 | ||
892 | //__________________________________________________________________________________________ | |
e2afb3b6 | 893 | void AliStack::MakeTree(Int_t event, const char * /*file*/) |
9e1a0ddb | 894 | { |
895 | // | |
896 | // Make Kine tree and creates branch for writing particles | |
897 | // | |
898 | TBranch *branch=0; | |
899 | // Make Kinematics Tree | |
900 | char hname[30]; | |
9e1a0ddb | 901 | if (!fTreeK) { |
902 | sprintf(hname,"TreeK%d",event); | |
903 | fTreeK = new TTree(hname,"Kinematics"); | |
904 | // Create a branch for particles | |
d0f40f23 | 905 | branch = fTreeK->Branch("Particles", "TParticle", &fParticleBuffer, 4000); |
9e1a0ddb | 906 | fTreeK->Write(0,TObject::kOverwrite); |
907 | } | |
908 | } | |
909 | ||
81694e6a | 910 | //_____________________________________________________________________________ |
9e1a0ddb | 911 | void AliStack::BeginEvent(Int_t event) |
912 | { | |
913 | // start a new event | |
914 | // | |
915 | // | |
916 | fNprimary = 0; | |
917 | fNtrack = 0; | |
918 | ||
919 | char hname[30]; | |
920 | if(fTreeK) { | |
921 | fTreeK->Reset(); | |
922 | sprintf(hname,"TreeK%d",event); | |
923 | fTreeK->SetName(hname); | |
924 | } | |
925 | } | |
926 | ||
81694e6a | 927 | //_____________________________________________________________________________ |
9e1a0ddb | 928 | void AliStack::FinishRun() |
929 | { | |
930 | // Clean TreeK information | |
931 | if (fTreeK) { | |
932 | delete fTreeK; fTreeK = 0; | |
933 | } | |
934 | } | |
935 | ||
cec14bc5 | 936 | Bool_t AliStack::GetEvent(Int_t event) |
9e1a0ddb | 937 | { |
938 | // | |
939 | // Get new event from TreeK | |
ccf7a81f | 940 | |
9e1a0ddb | 941 | // Reset/Create the particle stack |
942 | if (fTreeK) delete fTreeK; | |
943 | ||
944 | // Get Kine Tree from file | |
945 | char treeName[20]; | |
946 | sprintf(treeName,"TreeK%d",event); | |
e2afb3b6 | 947 | fTreeK = dynamic_cast<TTree*>(gDirectory->Get(treeName)); |
9e1a0ddb | 948 | |
ccf7a81f | 949 | if (fTreeK) |
950 | fTreeK->SetBranchAddress("Particles", &fParticleBuffer); | |
951 | else { | |
3d8c4988 | 952 | // Error("GetEvent","cannot find Kine Tree for event:%d\n",event); |
953 | Warning("GetEvent","cannot find Kine Tree for event:%d\n",event); | |
ccf7a81f | 954 | return kFALSE; |
955 | } | |
956 | // printf("\n primaries %d", fNprimary); | |
957 | // printf("\n tracks %d", fNtrack); | |
958 | ||
e2afb3b6 | 959 | Int_t size = static_cast<Int_t>(fTreeK->GetEntries()); |
9e1a0ddb | 960 | ResetArrays(size); |
ccf7a81f | 961 | return kTRUE; |
9e1a0ddb | 962 | } |