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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 | /* $Id$ */ | |
17 | ||
18 | // This class is extracted from the AliRun class | |
19 | // and contains all the MC-related functionality | |
20 | // The number of dependencies has to be reduced... | |
21 | // Author: F.Carminati | |
22 | // Federico.Carminati@cern.ch | |
23 | ||
24 | #include <string.h> | |
25 | ||
26 | #include <RVersion.h> | |
27 | #include <TArrayI.h> | |
28 | #include <TClonesArray.h> | |
29 | #include <TFile.h> | |
30 | #include <TGeoGlobalMagField.h> | |
31 | #include <TGeoManager.h> | |
32 | #include <TParticle.h> | |
33 | #include <TROOT.h> | |
34 | #include <TStopwatch.h> | |
35 | #include <TSystem.h> | |
36 | #include <TVirtualMC.h> | |
37 | #include <TTree.h> | |
38 | ||
39 | #include "AliCDBEntry.h" | |
40 | #include "AliCDBManager.h" | |
41 | #include "AliCDBStorage.h" | |
42 | #include "AliDetector.h" | |
43 | #include "AliGenerator.h" | |
44 | #include "AliGeomManager.h" | |
45 | #include "AliHeader.h" | |
46 | #include "AliHit.h" | |
47 | #include "AliLego.h" | |
48 | #include "AliLog.h" | |
49 | #include "AliMC.h" | |
50 | #include "AliMagF.h" | |
51 | #include "AliRun.h" | |
52 | #include "AliSimulation.h" | |
53 | #include "AliStack.h" | |
54 | #include "AliTrackReference.h" | |
55 | ||
56 | ClassImp(AliMC) | |
57 | ||
58 | //_______________________________________________________________________ | |
59 | AliMC::AliMC() : | |
60 | fGenerator(0), | |
61 | fEventEnergy(0), | |
62 | fSummEnergy(0), | |
63 | fSum2Energy(0), | |
64 | fTrRmax(1.e10), | |
65 | fTrZmax(1.e10), | |
66 | fRDecayMax(1.e10), | |
67 | fRDecayMin(-1.), | |
68 | fDecayPdg(0), | |
69 | fImedia(0), | |
70 | fTransParName("\0"), | |
71 | fHitLists(0), | |
72 | fTmpTreeTR(0), | |
73 | fTmpFileTR(0), | |
74 | fTrackReferences(), | |
75 | fTmpTrackReferences() | |
76 | ||
77 | { | |
78 | //default constructor | |
79 | DecayLimits(); | |
80 | } | |
81 | ||
82 | //_______________________________________________________________________ | |
83 | AliMC::AliMC(const char *name, const char *title) : | |
84 | TVirtualMCApplication(name, title), | |
85 | fGenerator(0), | |
86 | fEventEnergy(0), | |
87 | fSummEnergy(0), | |
88 | fSum2Energy(0), | |
89 | fTrRmax(1.e10), | |
90 | fTrZmax(1.e10), | |
91 | fRDecayMax(1.e10), | |
92 | fRDecayMin(-1.), | |
93 | fDecayPdg(0), | |
94 | fImedia(new TArrayI(1000)), | |
95 | fTransParName("\0"), | |
96 | fHitLists(new TList()), | |
97 | fTmpTreeTR(0), | |
98 | fTmpFileTR(0), | |
99 | fTrackReferences("AliTrackReference", 100), | |
100 | fTmpTrackReferences("AliTrackReference", 100) | |
101 | { | |
102 | //constructor | |
103 | // Set transport parameters | |
104 | SetTransPar(); | |
105 | DecayLimits(); | |
106 | // Prepare the tracking medium lists | |
107 | for(Int_t i=0;i<1000;i++) (*fImedia)[i]=-99; | |
108 | } | |
109 | ||
110 | //_______________________________________________________________________ | |
111 | AliMC::~AliMC() | |
112 | { | |
113 | //destructor | |
114 | delete fGenerator; | |
115 | delete fImedia; | |
116 | delete fHitLists; | |
117 | // Delete track references | |
118 | } | |
119 | ||
120 | //_______________________________________________________________________ | |
121 | void AliMC::ConstructGeometry() | |
122 | { | |
123 | // | |
124 | // Either load geometry from file or create it through usual | |
125 | // loop on detectors. In the first case the method | |
126 | // AliModule::CreateMaterials() only builds fIdtmed and is postponed | |
127 | // at InitGeometry(). | |
128 | // | |
129 | ||
130 | if(AliSimulation::Instance()->IsGeometryFromFile()){ //load geometry either from CDB or from file | |
131 | if(IsGeometryFromCDB()){ | |
132 | AliInfo("Loading geometry from CDB default storage"); | |
133 | AliCDBPath path("GRP","Geometry","Data"); | |
134 | AliCDBEntry *entry=AliCDBManager::Instance()->Get(path.GetPath()); | |
135 | if(!entry) AliFatal("Unable to load geometry from CDB!"); | |
136 | entry->SetOwner(0); | |
137 | gGeoManager = (TGeoManager*) entry->GetObject(); | |
138 | if (!gGeoManager) AliFatal("TGeoManager object not found in the specified CDB entry!"); | |
139 | }else{ | |
140 | // Load geometry | |
141 | const char *geomfilename = AliSimulation::Instance()->GetGeometryFile(); | |
142 | if(gSystem->ExpandPathName(geomfilename)){ | |
143 | AliInfo(Form("Loading geometry from file:\n %40s",geomfilename)); | |
144 | TGeoManager::Import(geomfilename); | |
145 | }else{ | |
146 | AliInfo(Form("Geometry file %40s not found!\n",geomfilename)); | |
147 | return; | |
148 | } | |
149 | } | |
150 | gMC->SetRootGeometry(); | |
151 | }else{ | |
152 | // Create modules, materials, geometry | |
153 | if (!gGeoManager) new TGeoManager("ALICE", "ALICE geometry"); | |
154 | TStopwatch stw; | |
155 | TIter next(gAlice->Modules()); | |
156 | AliModule *detector; | |
157 | AliDebug(1, "Geometry creation:"); | |
158 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
159 | stw.Start(); | |
160 | // Initialise detector materials and geometry | |
161 | detector->CreateMaterials(); | |
162 | detector->CreateGeometry(); | |
163 | AliInfo(Form("%10s R:%.2fs C:%.2fs", | |
164 | detector->GetName(),stw.RealTime(),stw.CpuTime())); | |
165 | } | |
166 | } | |
167 | ||
168 | } | |
169 | ||
170 | //_______________________________________________________________________ | |
171 | Bool_t AliMC::MisalignGeometry() | |
172 | { | |
173 | // Call misalignment code if AliSimulation object was defined. | |
174 | ||
175 | if(!AliSimulation::Instance()->IsGeometryFromFile()){ | |
176 | //Set alignable volumes for the whole geometry | |
177 | SetAllAlignableVolumes(); | |
178 | } | |
179 | // Misalign geometry via AliSimulation instance | |
180 | if (!AliSimulation::Instance()) return kFALSE; | |
181 | AliGeomManager::SetGeometry(gGeoManager); | |
182 | if(!AliGeomManager::CheckSymNamesLUT("ALL")) | |
183 | AliFatal("Current loaded geometry differs in the definition of symbolic names!"); | |
184 | ||
185 | return AliSimulation::Instance()->MisalignGeometry(AliRunLoader::Instance()); | |
186 | } | |
187 | ||
188 | //_______________________________________________________________________ | |
189 | void AliMC::ConstructOpGeometry() | |
190 | { | |
191 | // | |
192 | // Loop all detector modules and call DefineOpticalProperties() method | |
193 | // | |
194 | ||
195 | TIter next(gAlice->Modules()); | |
196 | AliModule *detector; | |
197 | AliInfo("Optical properties definition"); | |
198 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
199 | // Initialise detector geometry | |
200 | if(AliSimulation::Instance()->IsGeometryFromFile()) detector->CreateMaterials(); | |
201 | // Initialise detector optical properties | |
202 | detector->DefineOpticalProperties(); | |
203 | } | |
204 | } | |
205 | ||
206 | //_______________________________________________________________________ | |
207 | void AliMC::InitGeometry() | |
208 | { | |
209 | // | |
210 | // Initialize detectors | |
211 | // | |
212 | ||
213 | AliInfo("Initialisation:"); | |
214 | TStopwatch stw; | |
215 | TIter next(gAlice->Modules()); | |
216 | AliModule *detector; | |
217 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
218 | stw.Start(); | |
219 | detector->Init(); | |
220 | AliInfo(Form("%10s R:%.2fs C:%.2fs", | |
221 | detector->GetName(),stw.RealTime(),stw.CpuTime())); | |
222 | } | |
223 | } | |
224 | ||
225 | //_______________________________________________________________________ | |
226 | void AliMC::SetGeometryFromCDB() | |
227 | { | |
228 | // Set the loading of geometry from cdb instead of creating it | |
229 | // A default CDB storage needs to be set before this method is called | |
230 | if(AliCDBManager::Instance()->IsDefaultStorageSet() && | |
231 | AliCDBManager::Instance()->GetRun() >= 0) | |
232 | AliSimulation::Instance()->SetGeometryFile("*OCDB*"); | |
233 | else | |
234 | AliError("Loading of geometry from CDB ignored. First set a default CDB storage!"); | |
235 | } | |
236 | ||
237 | //_______________________________________________________________________ | |
238 | Bool_t AliMC::IsGeometryFromCDB() const | |
239 | { | |
240 | return (strcmp(AliSimulation::Instance()->GetGeometryFile(),"*OCDB*")==0); | |
241 | } | |
242 | ||
243 | //_______________________________________________________________________ | |
244 | void AliMC::SetAllAlignableVolumes() | |
245 | { | |
246 | // | |
247 | // Add alignable volumes (TGeoPNEntries) looping on all | |
248 | // active modules | |
249 | // | |
250 | ||
251 | AliInfo(Form("Setting entries for all alignable volumes of active detectors")); | |
252 | AliModule *detector; | |
253 | TIter next(gAlice->Modules()); | |
254 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
255 | detector->AddAlignableVolumes(); | |
256 | } | |
257 | } | |
258 | ||
259 | //_______________________________________________________________________ | |
260 | void AliMC::GeneratePrimaries() | |
261 | { | |
262 | // | |
263 | // Generate primary particles and fill them in the stack. | |
264 | // | |
265 | ||
266 | Generator()->Generate(); | |
267 | } | |
268 | ||
269 | //_______________________________________________________________________ | |
270 | void AliMC::SetGenerator(AliGenerator *generator) | |
271 | { | |
272 | // | |
273 | // Load the event generator | |
274 | // | |
275 | if(!fGenerator) fGenerator = generator; | |
276 | } | |
277 | ||
278 | //_______________________________________________________________________ | |
279 | void AliMC::ResetGenerator(AliGenerator *generator) | |
280 | { | |
281 | // | |
282 | // Load the event generator | |
283 | // | |
284 | if(fGenerator) { | |
285 | if(generator) { | |
286 | AliWarning(Form("Replacing generator %s with %s", | |
287 | fGenerator->GetName(),generator->GetName())); | |
288 | } | |
289 | else { | |
290 | AliWarning(Form("Replacing generator %s with NULL", | |
291 | fGenerator->GetName())); | |
292 | } | |
293 | } | |
294 | fGenerator = generator; | |
295 | } | |
296 | ||
297 | //_______________________________________________________________________ | |
298 | void AliMC::FinishRun() | |
299 | { | |
300 | // Clean generator information | |
301 | AliDebug(1, "fGenerator->FinishRun()"); | |
302 | fGenerator->FinishRun(); | |
303 | ||
304 | //Output energy summary tables | |
305 | AliDebug(1, "EnergySummary()"); | |
306 | ToAliDebug(1, EnergySummary()); | |
307 | } | |
308 | ||
309 | //_______________________________________________________________________ | |
310 | void AliMC::BeginPrimary() | |
311 | { | |
312 | // | |
313 | // Called at the beginning of each primary track | |
314 | // | |
315 | ||
316 | // Reset Hits info | |
317 | ResetHits(); | |
318 | ResetTrackReferences(); | |
319 | } | |
320 | ||
321 | //_______________________________________________________________________ | |
322 | void AliMC::PreTrack() | |
323 | { | |
324 | // Actions before the track's transport | |
325 | ||
326 | TObjArray &dets = *gAlice->Modules(); | |
327 | AliModule *module; | |
328 | ||
329 | for(Int_t i=0; i<=gAlice->GetNdets(); i++) | |
330 | if((module = dynamic_cast<AliModule*>(dets[i]))) | |
331 | module->PreTrack(); | |
332 | } | |
333 | ||
334 | //_______________________________________________________________________ | |
335 | void AliMC::Stepping() | |
336 | { | |
337 | // | |
338 | // Called at every step during transport | |
339 | // | |
340 | Int_t id = DetFromMate(gMC->CurrentMedium()); | |
341 | if (id < 0) return; | |
342 | ||
343 | ||
344 | if ( gMC->IsNewTrack() && | |
345 | gMC->TrackTime() == 0. && | |
346 | fRDecayMin >= 0. && | |
347 | fRDecayMax > fRDecayMin && | |
348 | gMC->TrackPid() == fDecayPdg ) | |
349 | { | |
350 | FixParticleDecaytime(); | |
351 | } | |
352 | ||
353 | ||
354 | ||
355 | // | |
356 | // --- If lego option, do it and leave | |
357 | if (AliSimulation::Instance()->Lego()) | |
358 | AliSimulation::Instance()->Lego()->StepManager(); | |
359 | else { | |
360 | Int_t copy; | |
361 | //Update energy deposition tables | |
362 | AddEnergyDeposit(gMC->CurrentVolID(copy),gMC->Edep()); | |
363 | // | |
364 | // write tracke reference for track which is dissapearing - MI | |
365 | ||
366 | if (gMC->IsTrackDisappeared() && !(gMC->IsTrackAlive())) { | |
367 | if (gMC->Etot() > 0.05) AddTrackReference(GetCurrentTrackNumber(), | |
368 | AliTrackReference::kDisappeared); | |
369 | ||
370 | ||
371 | } | |
372 | ||
373 | //Call the appropriate stepping routine; | |
374 | AliModule *det = dynamic_cast<AliModule*>(gAlice->Modules()->At(id)); | |
375 | if(det && det->StepManagerIsEnabled()) { | |
376 | det->StepManager(); | |
377 | } | |
378 | } | |
379 | } | |
380 | ||
381 | //_______________________________________________________________________ | |
382 | void AliMC::EnergySummary() | |
383 | { | |
384 | //e | |
385 | // Print summary of deposited energy | |
386 | // | |
387 | ||
388 | Int_t ndep=0; | |
389 | Float_t edtot=0; | |
390 | Float_t ed, ed2; | |
391 | Int_t kn, i, left, j, id; | |
392 | const Float_t kzero=0; | |
393 | Int_t ievent=AliRunLoader::Instance()->GetHeader()->GetEvent()+1; | |
394 | // | |
395 | // Energy loss information | |
396 | if(ievent) { | |
397 | printf("***************** Energy Loss Information per event (GEV) *****************\n"); | |
398 | for(kn=1;kn<fEventEnergy.GetSize();kn++) { | |
399 | ed=fSummEnergy[kn]; | |
400 | if(ed>0) { | |
401 | fEventEnergy[ndep]=kn; | |
402 | if(ievent>1) { | |
403 | ed=ed/ievent; | |
404 | ed2=fSum2Energy[kn]; | |
405 | ed2=ed2/ievent; | |
406 | ed2=100*TMath::Sqrt(TMath::Max(ed2-ed*ed,kzero))/ed; | |
407 | } else | |
408 | ed2=99; | |
409 | fSummEnergy[ndep]=ed; | |
410 | fSum2Energy[ndep]=TMath::Min(static_cast<Float_t>(99.),TMath::Max(ed2,kzero)); | |
411 | edtot+=ed; | |
412 | ndep++; | |
413 | } | |
414 | } | |
415 | for(kn=0;kn<(ndep-1)/3+1;kn++) { | |
416 | left=ndep-kn*3; | |
417 | for(i=0;i<(3<left?3:left);i++) { | |
418 | j=kn*3+i; | |
419 | id=Int_t (fEventEnergy[j]+0.1); | |
420 | printf(" %s %10.3f +- %10.3f%%;",gMC->VolName(id),fSummEnergy[j],fSum2Energy[j]); | |
421 | } | |
422 | printf("\n"); | |
423 | } | |
424 | // | |
425 | // Relative energy loss in different detectors | |
426 | printf("******************** Relative Energy Loss per event ********************\n"); | |
427 | printf("Total energy loss per event %10.3f GeV\n",edtot); | |
428 | for(kn=0;kn<(ndep-1)/5+1;kn++) { | |
429 | left=ndep-kn*5; | |
430 | for(i=0;i<(5<left?5:left);i++) { | |
431 | j=kn*5+i; | |
432 | id=Int_t (fEventEnergy[j]+0.1); | |
433 | printf(" %s %10.3f%%;",gMC->VolName(id),100*fSummEnergy[j]/edtot); | |
434 | } | |
435 | printf("\n"); | |
436 | } | |
437 | for(kn=0;kn<75;kn++) printf("*"); | |
438 | printf("\n"); | |
439 | } | |
440 | // | |
441 | // Reset the TArray's | |
442 | // fEventEnergy.Set(0); | |
443 | // fSummEnergy.Set(0); | |
444 | // fSum2Energy.Set(0); | |
445 | } | |
446 | ||
447 | //_____________________________________________________________________________ | |
448 | void AliMC::BeginEvent() | |
449 | { | |
450 | // | |
451 | // Clean-up previous event | |
452 | // Energy scores | |
453 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
454 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
455 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
456 | AliDebug(1, " BEGINNING EVENT "); | |
457 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
458 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
459 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
460 | ||
461 | AliRunLoader *runloader=AliRunLoader::Instance(); | |
462 | ||
463 | /*******************************/ | |
464 | /* Clean after eventual */ | |
465 | /* previous event */ | |
466 | /*******************************/ | |
467 | ||
468 | ||
469 | //Set the next event in Run Loader -> Cleans trees (TreeK and all trees in detectors), | |
470 | gAlice->SetEventNrInRun(gAlice->GetEventNrInRun()+1); | |
471 | runloader->SetEventNumber(gAlice->GetEventNrInRun());// sets new files, cleans the previous event stuff, if necessary, etc., | |
472 | AliDebug(1, Form("EventNr is %d",gAlice->GetEventNrInRun())); | |
473 | ||
474 | fEventEnergy.Reset(); | |
475 | // Clean detector information | |
476 | ||
477 | if (runloader->Stack()) | |
478 | runloader->Stack()->Reset();//clean stack -> tree is unloaded | |
479 | else | |
480 | runloader->MakeStack();//or make a new one | |
481 | ||
482 | ||
483 | if(AliSimulation::Instance()->Lego() == 0x0) | |
484 | { | |
485 | AliDebug(1, "fRunLoader->MakeTree(K)"); | |
486 | runloader->MakeTree("K"); | |
487 | } | |
488 | ||
489 | AliDebug(1, "gMC->SetStack(fRunLoader->Stack())"); | |
490 | gMC->SetStack(runloader->Stack());//Was in InitMC - but was moved here | |
491 | //because we don't have guarantee that | |
492 | //stack pointer is not going to change from event to event | |
493 | //since it bellobgs to header and is obtained via RunLoader | |
494 | // | |
495 | // Reset all Detectors & kinematics & make/reset trees | |
496 | // | |
497 | ||
498 | runloader->GetHeader()->Reset(AliCDBManager::Instance()->GetRun(),gAlice->GetEvNumber(), | |
499 | gAlice->GetEventNrInRun()); | |
500 | // fRunLoader->WriteKinematics("OVERWRITE"); is there any reason to rewrite here since MakeTree does so | |
501 | ||
502 | if(AliSimulation::Instance()->Lego()) | |
503 | { | |
504 | AliSimulation::Instance()->Lego()->BeginEvent(); | |
505 | return; | |
506 | } | |
507 | ||
508 | ||
509 | AliDebug(1, "ResetHits()"); | |
510 | ResetHits(); | |
511 | ||
512 | AliDebug(1, "fRunLoader->MakeTree(H)"); | |
513 | runloader->MakeTree("H"); | |
514 | ||
515 | ||
516 | ||
517 | MakeTmpTrackRefsTree(); | |
518 | //create new branches and SetAdresses | |
519 | TIter next(gAlice->Modules()); | |
520 | AliModule *detector; | |
521 | while((detector = (AliModule*)next())) | |
522 | { | |
523 | AliDebug(2, Form("%s->MakeBranch(H)",detector->GetName())); | |
524 | detector->MakeBranch("H"); | |
525 | } | |
526 | } | |
527 | ||
528 | //_______________________________________________________________________ | |
529 | void AliMC::ResetHits() | |
530 | { | |
531 | // | |
532 | // Reset all Detectors hits | |
533 | // | |
534 | TIter next(gAlice->Modules()); | |
535 | AliModule *detector; | |
536 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
537 | detector->ResetHits(); | |
538 | } | |
539 | } | |
540 | ||
541 | //_______________________________________________________________________ | |
542 | void AliMC::ResetDigits() | |
543 | { | |
544 | // | |
545 | // Reset all Detectors digits | |
546 | // | |
547 | TIter next(gAlice->Modules()); | |
548 | AliModule *detector; | |
549 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
550 | detector->ResetDigits(); | |
551 | } | |
552 | } | |
553 | ||
554 | //_______________________________________________________________________ | |
555 | void AliMC::ResetSDigits() | |
556 | { | |
557 | // | |
558 | // Reset all Detectors digits | |
559 | // | |
560 | TIter next(gAlice->Modules()); | |
561 | AliModule *detector; | |
562 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
563 | detector->ResetSDigits(); | |
564 | } | |
565 | } | |
566 | ||
567 | //_______________________________________________________________________ | |
568 | void AliMC::PostTrack() | |
569 | { | |
570 | // Posts tracks for each module | |
571 | ||
572 | TObjArray &dets = *gAlice->Modules(); | |
573 | AliModule *module; | |
574 | ||
575 | for(Int_t i=0; i<=gAlice->GetNdets(); i++) | |
576 | if((module = dynamic_cast<AliModule*>(dets[i]))) | |
577 | module->PostTrack(); | |
578 | } | |
579 | ||
580 | //_______________________________________________________________________ | |
581 | void AliMC::FinishPrimary() | |
582 | { | |
583 | // | |
584 | // Called at the end of each primary track | |
585 | // | |
586 | ||
587 | AliRunLoader *runloader=AliRunLoader::Instance(); | |
588 | // static Int_t count=0; | |
589 | // const Int_t times=10; | |
590 | // This primary is finished, purify stack | |
591 | #if ROOT_VERSION_CODE > 262152 | |
592 | if (!(gMC->SecondariesAreOrdered())) { | |
593 | if (runloader->Stack()->ReorderKine()) RemapHits(); | |
594 | } | |
595 | #endif | |
596 | if (runloader->Stack()->PurifyKine()) RemapHits(); | |
597 | ||
598 | TIter next(gAlice->Modules()); | |
599 | AliModule *detector; | |
600 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
601 | detector->FinishPrimary(); | |
602 | AliLoader* loader = detector->GetLoader(); | |
603 | if(loader) | |
604 | { | |
605 | TTree* treeH = loader->TreeH(); | |
606 | if (treeH) treeH->Fill(); //can be Lego run and treeH can not exist | |
607 | } | |
608 | } | |
609 | ||
610 | // Write out track references if any | |
611 | if (fTmpTreeTR) fTmpTreeTR->Fill(); | |
612 | } | |
613 | ||
614 | void AliMC::RemapHits() | |
615 | { | |
616 | // | |
617 | // Remaps the track labels of the hits | |
618 | AliRunLoader *runloader=AliRunLoader::Instance(); | |
619 | AliStack* stack = runloader->Stack(); | |
620 | TList* hitLists = GetHitLists(); | |
621 | TIter next(hitLists); | |
622 | TCollection *hitList; | |
623 | ||
624 | while((hitList = dynamic_cast<TCollection*>(next()))) { | |
625 | TIter nexthit(hitList); | |
626 | AliHit *hit; | |
627 | while((hit = dynamic_cast<AliHit*>(nexthit()))) { | |
628 | hit->SetTrack(stack->TrackLabel(hit->GetTrack())); | |
629 | } | |
630 | } | |
631 | ||
632 | // | |
633 | // This for detectors which have a special mapping mechanism | |
634 | // for hits, such as TPC and TRD | |
635 | // | |
636 | ||
637 | ||
638 | TObjArray* modules = gAlice->Modules(); | |
639 | TIter nextmod(modules); | |
640 | AliModule *module; | |
641 | while((module = (AliModule*) nextmod())) { | |
642 | AliDetector* det = dynamic_cast<AliDetector*> (module); | |
643 | if (det) det->RemapTrackHitIDs(stack->TrackLabelMap()); | |
644 | } | |
645 | // | |
646 | RemapTrackReferencesIDs(stack->TrackLabelMap()); | |
647 | } | |
648 | ||
649 | //_______________________________________________________________________ | |
650 | void AliMC::FinishEvent() | |
651 | { | |
652 | // | |
653 | // Called at the end of the event. | |
654 | // | |
655 | ||
656 | if(AliSimulation::Instance()->Lego()) AliSimulation::Instance()->Lego()->FinishEvent(); | |
657 | ||
658 | TIter next(gAlice->Modules()); | |
659 | AliModule *detector; | |
660 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
661 | detector->FinishEvent(); | |
662 | } | |
663 | ||
664 | //Update the energy deposit tables | |
665 | Int_t i; | |
666 | for(i=0;i<fEventEnergy.GetSize();i++) | |
667 | { | |
668 | fSummEnergy[i]+=fEventEnergy[i]; | |
669 | fSum2Energy[i]+=fEventEnergy[i]*fEventEnergy[i]; | |
670 | } | |
671 | ||
672 | AliRunLoader *runloader=AliRunLoader::Instance(); | |
673 | ||
674 | AliHeader* header = runloader->GetHeader(); | |
675 | AliStack* stack = runloader->Stack(); | |
676 | if ( (header == 0x0) || (stack == 0x0) ) | |
677 | {//check if we got header and stack. If not cry and exit aliroot | |
678 | AliFatal("Can not get the stack or header from LOADER"); | |
679 | return;//never reached | |
680 | } | |
681 | // Update Header information | |
682 | header->SetNprimary(stack->GetNprimary()); | |
683 | header->SetNtrack(stack->GetNtrack()); | |
684 | header->SetTimeStamp(AliSimulation::Instance()->GenerateTimeStamp()); | |
685 | ||
686 | // Write out the kinematics | |
687 | if (!AliSimulation::Instance()->Lego()) stack->FinishEvent(); | |
688 | ||
689 | // Synchronize the TreeTR with TreeK | |
690 | if (fTmpTreeTR) ReorderAndExpandTreeTR(); | |
691 | ||
692 | // Write out the event Header information | |
693 | TTree* treeE = runloader->TreeE(); | |
694 | if (treeE) | |
695 | { | |
696 | header->SetStack(stack); | |
697 | treeE->Fill(); | |
698 | } | |
699 | else | |
700 | { | |
701 | AliError("Can not get TreeE from RL"); | |
702 | } | |
703 | ||
704 | if(AliSimulation::Instance()->Lego() == 0x0) | |
705 | { | |
706 | runloader->WriteKinematics("OVERWRITE"); | |
707 | runloader->WriteTrackRefs("OVERWRITE"); | |
708 | runloader->WriteHits("OVERWRITE"); | |
709 | } | |
710 | ||
711 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
712 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
713 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
714 | AliDebug(1, " FINISHING EVENT "); | |
715 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
716 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
717 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
718 | } | |
719 | ||
720 | //_______________________________________________________________________ | |
721 | void AliMC::Init() | |
722 | { | |
723 | // MC initialization | |
724 | ||
725 | //=================Create Materials and geometry | |
726 | gMC->Init(); | |
727 | // Set alignable volumes for the whole geometry (with old root) | |
728 | #if ROOT_VERSION_CODE < 331527 | |
729 | SetAllAlignableVolumes(); | |
730 | #endif | |
731 | //Read the cuts for all materials | |
732 | ReadTransPar(); | |
733 | //Build the special IMEDIA table | |
734 | MediaTable(); | |
735 | ||
736 | //Compute cross-sections | |
737 | gMC->BuildPhysics(); | |
738 | ||
739 | //Initialise geometry deposition table | |
740 | fEventEnergy.Set(gMC->NofVolumes()+1); | |
741 | fSummEnergy.Set(gMC->NofVolumes()+1); | |
742 | fSum2Energy.Set(gMC->NofVolumes()+1); | |
743 | ||
744 | // Register MC in configuration | |
745 | AliConfig::Instance()->Add(gMC); | |
746 | ||
747 | } | |
748 | ||
749 | //_______________________________________________________________________ | |
750 | void AliMC::MediaTable() | |
751 | { | |
752 | // | |
753 | // Built media table to get from the media number to | |
754 | // the detector id | |
755 | // | |
756 | ||
757 | Int_t kz, nz, idt, lz, i, k, ind; | |
758 | // Int_t ibeg; | |
759 | TObjArray &dets = *gAlice->Detectors(); | |
760 | AliModule *det; | |
761 | Int_t ndets=gAlice->GetNdets(); | |
762 | // | |
763 | // For all detectors | |
764 | for (kz=0;kz<ndets;kz++) { | |
765 | // If detector is defined | |
766 | if((det=dynamic_cast<AliModule*>(dets[kz]))) { | |
767 | TArrayI &idtmed = *(det->GetIdtmed()); | |
768 | for(nz=0;nz<100;nz++) { | |
769 | ||
770 | // Find max and min material number | |
771 | if((idt=idtmed[nz])) { | |
772 | det->LoMedium() = det->LoMedium() < idt ? det->LoMedium() : idt; | |
773 | det->HiMedium() = det->HiMedium() > idt ? det->HiMedium() : idt; | |
774 | } | |
775 | } | |
776 | if(det->LoMedium() > det->HiMedium()) { | |
777 | det->LoMedium() = 0; | |
778 | det->HiMedium() = 0; | |
779 | } else { | |
780 | if(det->HiMedium() > fImedia->GetSize()) { | |
781 | AliError(Form("Increase fImedia from %d to %d", | |
782 | fImedia->GetSize(),det->HiMedium())); | |
783 | return; | |
784 | } | |
785 | // Tag all materials in rage as belonging to detector kz | |
786 | for(lz=det->LoMedium(); lz<= det->HiMedium(); lz++) { | |
787 | (*fImedia)[lz]=kz; | |
788 | } | |
789 | } | |
790 | } | |
791 | } | |
792 | // | |
793 | // Print summary table | |
794 | AliInfo("Tracking media ranges:"); | |
795 | ToAliInfo( | |
796 | for(i=0;i<(ndets-1)/6+1;i++) { | |
797 | for(k=0;k< (6<ndets-i*6?6:ndets-i*6);k++) { | |
798 | ind=i*6+k; | |
799 | det=dynamic_cast<AliModule*>(dets[ind]); | |
800 | if(det) | |
801 | printf(" %6s: %3d -> %3d;",det->GetName(),det->LoMedium(), | |
802 | det->HiMedium()); | |
803 | else | |
804 | printf(" %6s: %3d -> %3d;","NULL",0,0); | |
805 | } | |
806 | printf("\n"); | |
807 | } | |
808 | ); | |
809 | } | |
810 | ||
811 | //_______________________________________________________________________ | |
812 | void AliMC::ReadTransPar() | |
813 | { | |
814 | // | |
815 | // Read filename to set the transport parameters | |
816 | // | |
817 | ||
818 | ||
819 | const Int_t kncuts=10; | |
820 | const Int_t knflags=12; | |
821 | const Int_t knpars=kncuts+knflags; | |
822 | const char kpars[knpars][7] = {"CUTGAM" ,"CUTELE","CUTNEU","CUTHAD","CUTMUO", | |
823 | "BCUTE","BCUTM","DCUTE","DCUTM","PPCUTM","ANNI", | |
824 | "BREM","COMP","DCAY","DRAY","HADR","LOSS", | |
825 | "MULS","PAIR","PHOT","RAYL","STRA"}; | |
826 | char line[256]; | |
827 | char detName[7]; | |
828 | char* filtmp; | |
829 | Float_t cut[kncuts]; | |
830 | Int_t flag[knflags]; | |
831 | Int_t i, itmed, iret, ktmed, kz; | |
832 | FILE *lun; | |
833 | // | |
834 | // See whether the file is there | |
835 | filtmp=gSystem->ExpandPathName(fTransParName.Data()); | |
836 | lun=fopen(filtmp,"r"); | |
837 | delete [] filtmp; | |
838 | if(!lun) { | |
839 | AliWarning(Form("File %s does not exist!",fTransParName.Data())); | |
840 | return; | |
841 | } | |
842 | // | |
843 | while(1) { | |
844 | // Initialise cuts and flags | |
845 | for(i=0;i<kncuts;i++) cut[i]=-99; | |
846 | for(i=0;i<knflags;i++) flag[i]=-99; | |
847 | itmed=0; | |
848 | memset(line,0,256); | |
849 | // Read up to the end of line excluded | |
850 | iret=fscanf(lun,"%255[^\n]",line); | |
851 | if(iret<0) { | |
852 | //End of file | |
853 | fclose(lun); | |
854 | return; | |
855 | } | |
856 | // Read the end of line | |
857 | fscanf(lun,"%*c"); | |
858 | if(!iret) continue; | |
859 | if(line[0]=='*') continue; | |
860 | // Read the numbers | |
861 | iret=sscanf(line,"%6s %d %f %f %f %f %f %f %f %f %f %f %d %d %d %d %d %d %d %d %d %d %d %d", | |
862 | detName,&itmed,&cut[0],&cut[1],&cut[2],&cut[3],&cut[4],&cut[5],&cut[6],&cut[7],&cut[8], | |
863 | &cut[9],&flag[0],&flag[1],&flag[2],&flag[3],&flag[4],&flag[5],&flag[6],&flag[7], | |
864 | &flag[8],&flag[9],&flag[10],&flag[11]); | |
865 | if(!iret) continue; | |
866 | if(iret<0) { | |
867 | //reading error | |
868 | AliWarning(Form("Error reading file %s",fTransParName.Data())); | |
869 | continue; | |
870 | } | |
871 | // Check that the module exist | |
872 | AliModule *mod = gAlice->GetModule(detName); | |
873 | if(mod) { | |
874 | // Get the array of media numbers | |
875 | TArrayI &idtmed = *mod->GetIdtmed(); | |
876 | // Check that the tracking medium code is valid | |
877 | if(0<=itmed && itmed < 100) { | |
878 | ktmed=idtmed[itmed]; | |
879 | if(!ktmed) { | |
880 | AliWarning(Form("Invalid tracking medium code %d for %s",itmed,mod->GetName())); | |
881 | continue; | |
882 | } | |
883 | // Set energy thresholds | |
884 | for(kz=0;kz<kncuts;kz++) { | |
885 | if(cut[kz]>=0) { | |
886 | AliDebug(2, Form("%-6s set to %10.3E for tracking medium code %4d for %s", | |
887 | kpars[kz],cut[kz],itmed,mod->GetName())); | |
888 | gMC->Gstpar(ktmed,kpars[kz],cut[kz]); | |
889 | } | |
890 | } | |
891 | // Set transport mechanisms | |
892 | for(kz=0;kz<knflags;kz++) { | |
893 | if(flag[kz]>=0) { | |
894 | AliDebug(2, Form("%-6s set to %10d for tracking medium code %4d for %s", | |
895 | kpars[kncuts+kz],flag[kz],itmed,mod->GetName())); | |
896 | gMC->Gstpar(ktmed,kpars[kncuts+kz],Float_t(flag[kz])); | |
897 | } | |
898 | } | |
899 | } else { | |
900 | AliWarning(Form("Invalid medium code %d",itmed)); | |
901 | continue; | |
902 | } | |
903 | } else { | |
904 | AliDebug(1, Form("%s not present",detName)); | |
905 | continue; | |
906 | } | |
907 | } | |
908 | } | |
909 | ||
910 | //_______________________________________________________________________ | |
911 | void AliMC::SetTransPar(const char *filename) | |
912 | { | |
913 | // | |
914 | // Sets the file name for transport parameters | |
915 | // | |
916 | fTransParName = filename; | |
917 | } | |
918 | ||
919 | //_______________________________________________________________________ | |
920 | void AliMC::AddHit(Int_t id, Int_t track, Int_t *vol, Float_t *hits) const | |
921 | { | |
922 | // | |
923 | // Add a hit to detector id | |
924 | // | |
925 | TObjArray &dets = *gAlice->Modules(); | |
926 | if(dets[id]) static_cast<AliModule*>(dets[id])->AddHit(track,vol,hits); | |
927 | } | |
928 | ||
929 | //_______________________________________________________________________ | |
930 | void AliMC::AddDigit(Int_t id, Int_t *tracks, Int_t *digits) const | |
931 | { | |
932 | // | |
933 | // Add digit to detector id | |
934 | // | |
935 | TObjArray &dets = *gAlice->Modules(); | |
936 | if(dets[id]) static_cast<AliModule*>(dets[id])->AddDigit(tracks,digits); | |
937 | } | |
938 | ||
939 | //_______________________________________________________________________ | |
940 | Int_t AliMC::GetCurrentTrackNumber() const { | |
941 | // | |
942 | // Returns current track | |
943 | // | |
944 | return AliRunLoader::Instance()->Stack()->GetCurrentTrackNumber(); | |
945 | } | |
946 | ||
947 | //_______________________________________________________________________ | |
948 | void AliMC::DumpPart (Int_t i) const | |
949 | { | |
950 | // | |
951 | // Dumps particle i in the stack | |
952 | // | |
953 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
954 | if (runloader->Stack()) | |
955 | runloader->Stack()->DumpPart(i); | |
956 | } | |
957 | ||
958 | //_______________________________________________________________________ | |
959 | void AliMC::DumpPStack () const | |
960 | { | |
961 | // | |
962 | // Dumps the particle stack | |
963 | // | |
964 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
965 | if (runloader->Stack()) | |
966 | runloader->Stack()->DumpPStack(); | |
967 | } | |
968 | ||
969 | //_______________________________________________________________________ | |
970 | Int_t AliMC::GetNtrack() const { | |
971 | // | |
972 | // Returns number of tracks in stack | |
973 | // | |
974 | Int_t ntracks = -1; | |
975 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
976 | if (runloader->Stack()) | |
977 | ntracks = runloader->Stack()->GetNtrack(); | |
978 | return ntracks; | |
979 | } | |
980 | ||
981 | //_______________________________________________________________________ | |
982 | Int_t AliMC::GetPrimary(Int_t track) const | |
983 | { | |
984 | // | |
985 | // return number of primary that has generated track | |
986 | // | |
987 | Int_t nprimary = -999; | |
988 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
989 | if (runloader->Stack()) | |
990 | nprimary = runloader->Stack()->GetPrimary(track); | |
991 | return nprimary; | |
992 | } | |
993 | ||
994 | //_______________________________________________________________________ | |
995 | TParticle* AliMC::Particle(Int_t i) const | |
996 | { | |
997 | // Returns the i-th particle from the stack taking into account | |
998 | // the remaping done by PurifyKine | |
999 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
1000 | if (runloader) | |
1001 | if (runloader->Stack()) | |
1002 | return runloader->Stack()->Particle(i); | |
1003 | return 0x0; | |
1004 | } | |
1005 | ||
1006 | //_______________________________________________________________________ | |
1007 | const TObjArray* AliMC::Particles() const { | |
1008 | // | |
1009 | // Returns pointer to Particles array | |
1010 | // | |
1011 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
1012 | if (runloader) | |
1013 | if (runloader->Stack()) | |
1014 | return runloader->Stack()->Particles(); | |
1015 | return 0x0; | |
1016 | } | |
1017 | ||
1018 | //_______________________________________________________________________ | |
1019 | void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg, const Float_t *pmom, | |
1020 | const Float_t *vpos, const Float_t *polar, Float_t tof, | |
1021 | TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const | |
1022 | { | |
1023 | // Delegate to stack | |
1024 | // | |
1025 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
1026 | if (runloader) | |
1027 | if (runloader->Stack()) | |
1028 | runloader->Stack()->PushTrack(done, parent, pdg, pmom, vpos, polar, tof, | |
1029 | mech, ntr, weight, is); | |
1030 | } | |
1031 | ||
1032 | //_______________________________________________________________________ | |
1033 | void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg, | |
1034 | Double_t px, Double_t py, Double_t pz, Double_t e, | |
1035 | Double_t vx, Double_t vy, Double_t vz, Double_t tof, | |
1036 | Double_t polx, Double_t poly, Double_t polz, | |
1037 | TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const | |
1038 | { | |
1039 | // Delegate to stack | |
1040 | // | |
1041 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
1042 | if (runloader) | |
1043 | if (runloader->Stack()) | |
1044 | runloader->Stack()->PushTrack(done, parent, pdg, px, py, pz, e, vx, vy, vz, tof, | |
1045 | polx, poly, polz, mech, ntr, weight, is); | |
1046 | } | |
1047 | ||
1048 | //_______________________________________________________________________ | |
1049 | void AliMC::SetHighWaterMark(Int_t nt) const | |
1050 | { | |
1051 | // | |
1052 | // Set high water mark for last track in event | |
1053 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
1054 | if (runloader) | |
1055 | if (runloader->Stack()) | |
1056 | runloader->Stack()->SetHighWaterMark(nt); | |
1057 | } | |
1058 | ||
1059 | //_______________________________________________________________________ | |
1060 | void AliMC::KeepTrack(Int_t track) const | |
1061 | { | |
1062 | // | |
1063 | // Delegate to stack | |
1064 | // | |
1065 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
1066 | if (runloader) | |
1067 | if (runloader->Stack()) | |
1068 | runloader->Stack()->KeepTrack(track); | |
1069 | } | |
1070 | ||
1071 | //_______________________________________________________________________ | |
1072 | void AliMC::FlagTrack(Int_t track) const | |
1073 | { | |
1074 | // Delegate to stack | |
1075 | // | |
1076 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
1077 | if (runloader) | |
1078 | if (runloader->Stack()) | |
1079 | runloader->Stack()->FlagTrack(track); | |
1080 | } | |
1081 | ||
1082 | //_______________________________________________________________________ | |
1083 | void AliMC::SetCurrentTrack(Int_t track) const | |
1084 | { | |
1085 | // | |
1086 | // Set current track number | |
1087 | // | |
1088 | AliRunLoader * runloader = AliRunLoader::Instance(); | |
1089 | if (runloader) | |
1090 | if (runloader->Stack()) | |
1091 | runloader->Stack()->SetCurrentTrack(track); | |
1092 | } | |
1093 | ||
1094 | //_______________________________________________________________________ | |
1095 | AliTrackReference* AliMC::AddTrackReference(Int_t label, Int_t id) | |
1096 | { | |
1097 | // | |
1098 | // add a trackrefernce to the list | |
1099 | Int_t primary = GetPrimary(label); | |
1100 | Particle(primary)->SetBit(kKeepBit); | |
1101 | ||
1102 | Int_t nref = fTmpTrackReferences.GetEntriesFast(); | |
1103 | return new(fTmpTrackReferences[nref]) AliTrackReference(label, id); | |
1104 | } | |
1105 | ||
1106 | ||
1107 | ||
1108 | //_______________________________________________________________________ | |
1109 | void AliMC::ResetTrackReferences() | |
1110 | { | |
1111 | // | |
1112 | // Reset all references | |
1113 | // | |
1114 | fTmpTrackReferences.Clear(); | |
1115 | } | |
1116 | ||
1117 | //_______________________________________________________________________ | |
1118 | void AliMC::RemapTrackReferencesIDs(const Int_t *map) | |
1119 | { | |
1120 | // | |
1121 | // Remapping track reference | |
1122 | // Called at finish primary | |
1123 | // | |
1124 | ||
1125 | Int_t nEntries = fTmpTrackReferences.GetEntries(); | |
1126 | for (Int_t i=0; i < nEntries; i++){ | |
1127 | AliTrackReference * ref = dynamic_cast<AliTrackReference*>(fTmpTrackReferences.UncheckedAt(i)); | |
1128 | if (ref) { | |
1129 | Int_t newID = map[ref->GetTrack()]; | |
1130 | if (newID>=0) ref->SetTrack(newID); | |
1131 | else { | |
1132 | ref->SetBit(kNotDeleted,kFALSE); | |
1133 | fTmpTrackReferences.RemoveAt(i); | |
1134 | } | |
1135 | } // if ref | |
1136 | } | |
1137 | fTmpTrackReferences.Compress(); | |
1138 | } | |
1139 | ||
1140 | //_______________________________________________________________________ | |
1141 | void AliMC::FixParticleDecaytime() | |
1142 | { | |
1143 | // | |
1144 | // Fix the particle decay time according to rmin and rmax for decays | |
1145 | // | |
1146 | ||
1147 | TLorentzVector p; | |
1148 | gMC->TrackMomentum(p); | |
1149 | Double_t tmin, tmax; | |
1150 | Double_t b; | |
1151 | ||
1152 | // Transverse velocity | |
1153 | Double_t vt = p.Pt() / p.E(); | |
1154 | ||
1155 | if ((b = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->SolenoidField()) > 0.) { // [kG] | |
1156 | ||
1157 | // Radius of helix | |
1158 | ||
1159 | Double_t rho = p.Pt() / 0.0003 / b; // [cm] | |
1160 | ||
1161 | // Revolution frequency | |
1162 | ||
1163 | Double_t omega = vt / rho; | |
1164 | ||
1165 | // Maximum and minimum decay time | |
1166 | // | |
1167 | // Check for curlers first | |
1168 | const Double_t kOvRhoSqr2 = 1./(rho*TMath::Sqrt(2.)); | |
1169 | if (fRDecayMax * kOvRhoSqr2 > 1.) return; | |
1170 | ||
1171 | // | |
1172 | ||
1173 | tmax = TMath::ACos((1.-fRDecayMax*kOvRhoSqr2)*(1.+fRDecayMax*kOvRhoSqr2)) / omega; // [ct] | |
1174 | tmin = TMath::ACos((1.-fRDecayMin*kOvRhoSqr2)*(1.+fRDecayMin*kOvRhoSqr2)) / omega; // [ct] | |
1175 | } else { | |
1176 | tmax = fRDecayMax / vt; // [ct] | |
1177 | tmin = fRDecayMin / vt; // [ct] | |
1178 | } | |
1179 | ||
1180 | // | |
1181 | // Dial t using the two limits | |
1182 | Double_t t = tmin + (tmax - tmin) * gRandom->Rndm(); // [ct] | |
1183 | // | |
1184 | // | |
1185 | // Force decay time in transport code | |
1186 | // | |
1187 | gMC->ForceDecayTime(t / 2.99792458e10); | |
1188 | } | |
1189 | ||
1190 | void AliMC::MakeTmpTrackRefsTree() | |
1191 | { | |
1192 | // Make the temporary track reference tree | |
1193 | fTmpFileTR = new TFile("TrackRefsTmp.root", "recreate"); | |
1194 | fTmpTreeTR = new TTree("TreeTR", "Track References"); | |
1195 | TClonesArray* pRef = &fTmpTrackReferences; | |
1196 | fTmpTreeTR->Branch("TrackReferences", &pRef, 4000); | |
1197 | } | |
1198 | ||
1199 | //_______________________________________________________________________ | |
1200 | void AliMC::ReorderAndExpandTreeTR() | |
1201 | { | |
1202 | // | |
1203 | // Reorder and expand the temporary track reference tree in order to match the kinematics tree | |
1204 | // | |
1205 | ||
1206 | AliRunLoader *rl = AliRunLoader::Instance(); | |
1207 | // | |
1208 | // TreeTR | |
1209 | AliDebug(1, "fRunLoader->MakeTrackRefsContainer()"); | |
1210 | rl->MakeTrackRefsContainer(); | |
1211 | TTree * treeTR = rl->TreeTR(); | |
1212 | // make branch for central track references | |
1213 | TClonesArray* pRef = &fTrackReferences; | |
1214 | treeTR->Branch("TrackReferences", &pRef); | |
1215 | ||
1216 | AliStack* stack = rl->Stack(); | |
1217 | Int_t np = stack->GetNprimary(); | |
1218 | Int_t nt = fTmpTreeTR->GetEntries(); | |
1219 | // | |
1220 | // Loop over tracks and find the secondaries with the help of the kine tree | |
1221 | Int_t ifills = 0; | |
1222 | Int_t it = 0; | |
1223 | for (Int_t ip = np - 1; ip > -1; ip--) { | |
1224 | TParticle *part = stack->Particle(ip); | |
1225 | //printf("Particle %5d %5d %5d %5d %5d \n", ip, part->GetPdgCode(), part->GetFirstMother(), part->GetFirstDaughter(), part->GetLastDaughter()); | |
1226 | ||
1227 | // Skip primaries that have not been transported | |
1228 | Int_t dau1 = part->GetFirstDaughter(); | |
1229 | Int_t dau2 = -1; | |
1230 | if (!part->TestBit(kTransportBit)) continue; | |
1231 | // | |
1232 | fTmpTreeTR->GetEntry(it++); | |
1233 | Int_t nh = fTmpTrackReferences.GetEntries(); | |
1234 | // Determine range of secondaries produced by this primary | |
1235 | if (dau1 > -1) { | |
1236 | Int_t inext = ip - 1; | |
1237 | while (dau2 < 0) { | |
1238 | if (inext >= 0) { | |
1239 | part = stack->Particle(inext); | |
1240 | dau2 = part->GetFirstDaughter(); | |
1241 | if (!(part->TestBit(kTransportBit)) || dau2 == -1 || dau2 < np) { | |
1242 | // if (dau2 == -1 || dau2 < np) { | |
1243 | dau2 = -1; | |
1244 | } else { | |
1245 | dau2--; | |
1246 | } | |
1247 | } else { | |
1248 | dau2 = stack->GetNtrack() - 1; | |
1249 | } | |
1250 | inext--; | |
1251 | } // find upper bound | |
1252 | } // dau2 < 0 | |
1253 | // printf("Check (1) %5d %5d %5d %5d %5d \n", ip, np, it, dau1, dau2); | |
1254 | // | |
1255 | // Loop over reference hits and find secondary label | |
1256 | for (Int_t id = dau1; (id <= dau2) && (dau1 > -1); id++) { | |
1257 | for (Int_t ih = 0; ih < nh; ih++) { | |
1258 | AliTrackReference* tr = (AliTrackReference*) fTmpTrackReferences.At(ih); | |
1259 | Int_t label = tr->Label(); | |
1260 | // Skip primaries | |
1261 | if (label == ip) continue; | |
1262 | if (label > dau2 || label < dau1) | |
1263 | AliWarning(Form("Track Reference Label out of range !: %5d %5d %5d \n", label, dau1, dau2)); | |
1264 | if (label == id) { | |
1265 | // secondary found | |
1266 | Int_t nref = fTrackReferences.GetEntriesFast(); | |
1267 | new(fTrackReferences[nref]) AliTrackReference(*tr); | |
1268 | } | |
1269 | } // hits | |
1270 | treeTR->Fill(); | |
1271 | fTrackReferences.Clear(); | |
1272 | ifills++; | |
1273 | } // daughters | |
1274 | } // tracks | |
1275 | // | |
1276 | // Now loop again and write the primaries | |
1277 | it = nt - 1; | |
1278 | for (Int_t ip = 0; ip < np; ip++) { | |
1279 | TParticle* part = stack->Particle(ip); | |
1280 | // if ((part->GetFirstDaughter() == -1 && part->GetStatusCode() <= 1) || part->GetFirstDaughter() >= np) | |
1281 | if (part->TestBit(kTransportBit)) | |
1282 | { | |
1283 | // Skip particles that have not been transported | |
1284 | fTmpTreeTR->GetEntry(it--); | |
1285 | Int_t nh = fTmpTrackReferences.GetEntries(); | |
1286 | // | |
1287 | // Loop over reference hits and find primary labels | |
1288 | for (Int_t ih = 0; ih < nh; ih++) { | |
1289 | AliTrackReference* tr = (AliTrackReference*) fTmpTrackReferences.At(ih); | |
1290 | Int_t label = tr->Label(); | |
1291 | if (label == ip) { | |
1292 | Int_t nref = fTrackReferences.GetEntriesFast(); | |
1293 | new(fTrackReferences[nref]) AliTrackReference(*tr); | |
1294 | } | |
1295 | } | |
1296 | } | |
1297 | treeTR->Fill(); | |
1298 | fTrackReferences.Clear(); | |
1299 | ifills++; | |
1300 | } // tracks | |
1301 | // Check | |
1302 | if (ifills != stack->GetNtrack()) | |
1303 | AliWarning(Form("Number of entries in TreeTR (%5d) unequal to TreeK (%5d) \n", ifills, stack->GetNtrack())); | |
1304 | // | |
1305 | // Clean-up | |
1306 | delete fTmpTreeTR; | |
1307 | fTmpFileTR->Close(); | |
1308 | delete fTmpFileTR; | |
1309 | fTmpTrackReferences.Clear(); | |
1310 | gSystem->Exec("rm -rf TrackRefsTmp.root"); | |
1311 | } | |
1312 |