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5d12ce38 | 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 | ||
d0d4a6b3 | 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 | ||
c75cfb51 | 24 | #include <RVersion.h> |
5d12ce38 | 25 | #include <TBrowser.h> |
7ca4655f | 26 | #include <TClonesArray.h> |
27 | #include <TGeoManager.h> | |
5d12ce38 | 28 | #include <TStopwatch.h> |
29 | #include <TSystem.h> | |
30 | #include <TVirtualMC.h> | |
ced249e6 | 31 | #include <TROOT.h> |
b60e0f5e | 32 | |
21bf7095 | 33 | #include "AliLog.h" |
5d12ce38 | 34 | #include "AliDetector.h" |
35 | #include "AliGenerator.h" | |
36 | #include "AliHeader.h" | |
37 | #include "AliLego.h" | |
38 | #include "AliMC.h" | |
39 | #include "AliMCQA.h" | |
40 | #include "AliRun.h" | |
41 | #include "AliStack.h" | |
0561efeb | 42 | #include "AliMagF.h" |
5d12ce38 | 43 | #include "AliTrackReference.h" |
39b3f8ba | 44 | #include "AliSimulation.h" |
392808e8 | 45 | #include "AliGeomManager.h" |
ced249e6 | 46 | #include "AliCDBManager.h" |
47 | #include "AliCDBStorage.h" | |
48 | #include "AliCDBEntry.h" | |
5d12ce38 | 49 | |
50 | ||
51 | ClassImp(AliMC) | |
52 | ||
53 | //_______________________________________________________________________ | |
54 | AliMC::AliMC() : | |
55 | fGenerator(0), | |
56 | fEventEnergy(0), | |
57 | fSummEnergy(0), | |
58 | fSum2Energy(0), | |
59 | fTrRmax(1.e10), | |
60 | fTrZmax(1.e10), | |
90e48c0c | 61 | fRDecayMax(1.e10), |
38ca2ad6 | 62 | fRDecayMin(-1.), |
90e48c0c | 63 | fDecayPdg(0), |
5d12ce38 | 64 | fImedia(0), |
65 | fTransParName("\0"), | |
66 | fMCQA(0), | |
67 | fHitLists(0), | |
68 | fTrackReferences(0) | |
69 | ||
70 | { | |
d0d4a6b3 | 71 | //default constructor |
0561efeb | 72 | DecayLimits(); |
5d12ce38 | 73 | } |
74 | ||
75 | //_______________________________________________________________________ | |
76 | AliMC::AliMC(const char *name, const char *title) : | |
77 | TVirtualMCApplication(name, title), | |
78 | fGenerator(0), | |
79 | fEventEnergy(0), | |
80 | fSummEnergy(0), | |
81 | fSum2Energy(0), | |
82 | fTrRmax(1.e10), | |
83 | fTrZmax(1.e10), | |
90e48c0c | 84 | fRDecayMax(1.e10), |
38ca2ad6 | 85 | fRDecayMin(-1.), |
90e48c0c | 86 | fDecayPdg(0), |
5d12ce38 | 87 | fImedia(new TArrayI(1000)), |
88 | fTransParName("\0"), | |
89 | fMCQA(0), | |
90 | fHitLists(new TList()), | |
91 | fTrackReferences(new TClonesArray("AliTrackReference", 100)) | |
92 | { | |
d0d4a6b3 | 93 | //constructor |
5d12ce38 | 94 | // Set transport parameters |
95 | SetTransPar(); | |
0561efeb | 96 | DecayLimits(); |
5d12ce38 | 97 | // Prepare the tracking medium lists |
98 | for(Int_t i=0;i<1000;i++) (*fImedia)[i]=-99; | |
5d12ce38 | 99 | } |
100 | ||
101 | //_______________________________________________________________________ | |
102 | AliMC::AliMC(const AliMC &mc) : | |
103 | TVirtualMCApplication(mc), | |
104 | fGenerator(0), | |
105 | fEventEnergy(0), | |
106 | fSummEnergy(0), | |
107 | fSum2Energy(0), | |
108 | fTrRmax(1.e10), | |
109 | fTrZmax(1.e10), | |
90e48c0c | 110 | fRDecayMax(1.e10), |
38ca2ad6 | 111 | fRDecayMin(-1.), |
90e48c0c | 112 | fDecayPdg(0), |
5d12ce38 | 113 | fImedia(0), |
114 | fTransParName("\0"), | |
115 | fMCQA(0), | |
116 | fHitLists(0), | |
117 | fTrackReferences(0) | |
118 | { | |
119 | // | |
90e48c0c | 120 | // Copy constructor for AliMC |
5d12ce38 | 121 | // |
122 | mc.Copy(*this); | |
123 | } | |
124 | ||
125 | //_______________________________________________________________________ | |
126 | AliMC::~AliMC() | |
127 | { | |
d0d4a6b3 | 128 | //destructor |
5d12ce38 | 129 | delete fGenerator; |
130 | delete fImedia; | |
131 | delete fMCQA; | |
132 | delete fHitLists; | |
133 | // Delete track references | |
134 | if (fTrackReferences) { | |
135 | fTrackReferences->Delete(); | |
136 | delete fTrackReferences; | |
137 | fTrackReferences = 0; | |
138 | } | |
139 | ||
140 | } | |
141 | ||
142 | //_______________________________________________________________________ | |
6c4904c2 | 143 | void AliMC::Copy(TObject &) const |
5d12ce38 | 144 | { |
d0d4a6b3 | 145 | //dummy Copy function |
21bf7095 | 146 | AliFatal("Not implemented!"); |
5d12ce38 | 147 | } |
148 | ||
149 | //_______________________________________________________________________ | |
150 | void AliMC::ConstructGeometry() | |
151 | { | |
152 | // | |
4a9de4af | 153 | // Either load geometry from file or create it through usual |
154 | // loop on detectors. In the first case the method | |
155 | // AliModule::CreateMaterials() only builds fIdtmed and is postponed | |
156 | // at InitGeometry(). | |
5d12ce38 | 157 | // |
158 | ||
ced249e6 | 159 | if(gAlice->IsRootGeometry()){ //load geometry either from CDB or from file |
160 | if(gAlice->IsGeomFromCDB()){ | |
161 | AliInfo("Loading geometry from CDB default storage"); | |
162 | AliCDBPath path("GRP","Geometry","Data"); | |
163 | AliCDBEntry *entry=AliCDBManager::Instance()->Get(path.GetPath()); | |
164 | if(!entry) AliFatal("Unable to load geometry from CDB!"); | |
165 | entry->SetOwner(0); | |
166 | gGeoManager = (TGeoManager*) entry->GetObject(); | |
167 | if (!gGeoManager) AliFatal("TGeoManager object not found in the specified CDB entry!"); | |
4a9de4af | 168 | }else{ |
ced249e6 | 169 | // Load geometry |
170 | const char *geomfilename = gAlice->GetGeometryFileName(); | |
171 | if(gSystem->ExpandPathName(geomfilename)){ | |
172 | AliInfo(Form("Loading geometry from file:\n %40s",geomfilename)); | |
173 | TGeoManager::Import(geomfilename); | |
174 | }else{ | |
175 | AliInfo(Form("Geometry file %40s not found!\n",geomfilename)); | |
176 | return; | |
177 | } | |
4a9de4af | 178 | } |
179 | }else{ | |
180 | // Create modules, materials, geometry | |
5d12ce38 | 181 | TStopwatch stw; |
182 | TIter next(gAlice->Modules()); | |
183 | AliModule *detector; | |
21bf7095 | 184 | AliDebug(1, "Geometry creation:"); |
5d12ce38 | 185 | while((detector = dynamic_cast<AliModule*>(next()))) { |
186 | stw.Start(); | |
187 | // Initialise detector materials and geometry | |
188 | detector->CreateMaterials(); | |
189 | detector->CreateGeometry(); | |
21bf7095 | 190 | AliInfo(Form("%10s R:%.2fs C:%.2fs", |
191 | detector->GetName(),stw.RealTime(),stw.CpuTime())); | |
5d12ce38 | 192 | } |
4a9de4af | 193 | } |
194 | ||
5d12ce38 | 195 | } |
196 | ||
39b3f8ba | 197 | //_______________________________________________________________________ |
198 | Bool_t AliMC::MisalignGeometry() | |
199 | { | |
200 | // Call misalignment code if AliSimulation object was defined. | |
0717eed2 | 201 | |
ced249e6 | 202 | if(!gAlice->IsRootGeometry()){ |
203 | //Set alignable volumes for the whole geometry | |
204 | SetAllAlignableVolumes(); | |
205 | } | |
0717eed2 | 206 | // Misalign geometry via AliSimulation instance |
39b3f8ba | 207 | if (!AliSimulation::GetInstance()) return kFALSE; |
392808e8 | 208 | AliGeomManager::SetGeometry(gGeoManager); |
39b3f8ba | 209 | return AliSimulation::GetInstance()->MisalignGeometry(gAlice->GetRunLoader()); |
210 | } | |
211 | ||
661663fa | 212 | //_______________________________________________________________________ |
213 | void AliMC::ConstructOpGeometry() | |
214 | { | |
215 | // | |
216 | // Loop all detector modules and call DefineOpticalProperties() method | |
217 | // | |
218 | ||
219 | TIter next(gAlice->Modules()); | |
220 | AliModule *detector; | |
221 | AliInfo("Optical properties definition"); | |
222 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
223 | // Initialise detector optical properties | |
224 | detector->DefineOpticalProperties(); | |
225 | } | |
226 | } | |
227 | ||
5d12ce38 | 228 | //_______________________________________________________________________ |
229 | void AliMC::InitGeometry() | |
230 | { | |
231 | // | |
27cf3cdc | 232 | // Initialize detectors |
5d12ce38 | 233 | // |
234 | ||
4a9de4af | 235 | AliInfo("Initialisation:"); |
236 | TStopwatch stw; | |
237 | TIter next(gAlice->Modules()); | |
238 | AliModule *detector; | |
239 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
240 | stw.Start(); | |
27cf3cdc | 241 | // Initialise detector geometry |
4a9de4af | 242 | if(gAlice->IsRootGeometry()) detector->CreateMaterials(); |
243 | detector->Init(); | |
4a9de4af | 244 | AliInfo(Form("%10s R:%.2fs C:%.2fs", |
245 | detector->GetName(),stw.RealTime(),stw.CpuTime())); | |
246 | } | |
4787b401 | 247 | } |
248 | ||
249 | //_______________________________________________________________________ | |
250 | void AliMC::SetAllAlignableVolumes() | |
251 | { | |
252 | // | |
253 | // Add alignable volumes (TGeoPNEntries) looping on all | |
254 | // active modules | |
255 | // | |
256 | ||
257 | AliInfo(Form("Setting entries for all alignable volumes of active detectors")); | |
258 | AliModule *detector; | |
259 | TIter next(gAlice->Modules()); | |
260 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
261 | detector->AddAlignableVolumes(); | |
262 | } | |
5d12ce38 | 263 | } |
264 | ||
265 | //_______________________________________________________________________ | |
2057aecb | 266 | void AliMC::GeneratePrimaries() |
5d12ce38 | 267 | { |
268 | // | |
269 | // Generate primary particles and fill them in the stack. | |
270 | // | |
271 | ||
272 | Generator()->Generate(); | |
273 | } | |
274 | ||
275 | //_______________________________________________________________________ | |
276 | void AliMC::SetGenerator(AliGenerator *generator) | |
277 | { | |
278 | // | |
279 | // Load the event generator | |
280 | // | |
281 | if(!fGenerator) fGenerator = generator; | |
282 | } | |
283 | ||
284 | //_______________________________________________________________________ | |
285 | void AliMC::ResetGenerator(AliGenerator *generator) | |
286 | { | |
287 | // | |
288 | // Load the event generator | |
289 | // | |
9a213abc | 290 | if(fGenerator) { |
291 | if(generator) { | |
21bf7095 | 292 | AliWarning(Form("Replacing generator %s with %s", |
9a213abc | 293 | fGenerator->GetName(),generator->GetName())); |
294 | } | |
295 | else { | |
21bf7095 | 296 | AliWarning(Form("Replacing generator %s with NULL", |
297 | fGenerator->GetName())); | |
9a213abc | 298 | } |
299 | } | |
5d12ce38 | 300 | fGenerator = generator; |
301 | } | |
302 | ||
303 | //_______________________________________________________________________ | |
304 | void AliMC::FinishRun() | |
305 | { | |
306 | // Clean generator information | |
21bf7095 | 307 | AliDebug(1, "fGenerator->FinishRun()"); |
5d12ce38 | 308 | fGenerator->FinishRun(); |
309 | ||
310 | //Output energy summary tables | |
21bf7095 | 311 | AliDebug(1, "EnergySummary()"); |
312 | ToAliDebug(1, EnergySummary()); | |
5d12ce38 | 313 | } |
314 | ||
315 | //_______________________________________________________________________ | |
316 | void AliMC::BeginPrimary() | |
317 | { | |
318 | // | |
319 | // Called at the beginning of each primary track | |
320 | // | |
321 | ||
322 | // Reset Hits info | |
323 | ResetHits(); | |
324 | ResetTrackReferences(); | |
325 | ||
326 | } | |
327 | ||
328 | //_______________________________________________________________________ | |
329 | void AliMC::PreTrack() | |
330 | { | |
d0d4a6b3 | 331 | // Actions before the track's transport |
5d12ce38 | 332 | TObjArray &dets = *gAlice->Modules(); |
333 | AliModule *module; | |
334 | ||
335 | for(Int_t i=0; i<=gAlice->GetNdets(); i++) | |
336 | if((module = dynamic_cast<AliModule*>(dets[i]))) | |
337 | module->PreTrack(); | |
338 | ||
339 | fMCQA->PreTrack(); | |
340 | } | |
341 | ||
342 | //_______________________________________________________________________ | |
343 | void AliMC::Stepping() | |
344 | { | |
345 | // | |
346 | // Called at every step during transport | |
347 | // | |
0561efeb | 348 | |
38ca2ad6 | 349 | Int_t id = DetFromMate(gMC->CurrentMedium()); |
5d12ce38 | 350 | if (id < 0) return; |
351 | ||
0561efeb | 352 | |
353 | if ( gMC->IsNewTrack() && | |
354 | gMC->TrackTime() == 0. && | |
38ca2ad6 | 355 | fRDecayMin >= 0. && |
0561efeb | 356 | fRDecayMax > fRDecayMin && |
357 | gMC->TrackPid() == fDecayPdg ) | |
358 | { | |
359 | FixParticleDecaytime(); | |
360 | } | |
361 | ||
362 | ||
363 | ||
5d12ce38 | 364 | // |
365 | // --- If lego option, do it and leave | |
366 | if (gAlice->Lego()) | |
367 | gAlice->Lego()->StepManager(); | |
368 | else { | |
369 | Int_t copy; | |
370 | //Update energy deposition tables | |
371 | AddEnergyDeposit(gMC->CurrentVolID(copy),gMC->Edep()); | |
ab03c084 | 372 | // |
373 | // write tracke reference for track which is dissapearing - MI | |
b60e0f5e | 374 | if (gMC->IsTrackDisappeared()) { |
375 | if (gMC->Etot()>0.05) AddTrackReference(GetCurrentTrackNumber()); | |
376 | } | |
5d12ce38 | 377 | |
378 | //Call the appropriate stepping routine; | |
379 | AliModule *det = dynamic_cast<AliModule*>(gAlice->Modules()->At(id)); | |
380 | if(det && det->StepManagerIsEnabled()) { | |
e569033b | 381 | if(AliLog::GetGlobalDebugLevel()>0) fMCQA->StepManager(id); |
5d12ce38 | 382 | det->StepManager(); |
383 | } | |
384 | } | |
385 | } | |
386 | ||
387 | //_______________________________________________________________________ | |
388 | void AliMC::EnergySummary() | |
389 | { | |
390 | // | |
391 | // Print summary of deposited energy | |
392 | // | |
393 | ||
394 | Int_t ndep=0; | |
395 | Float_t edtot=0; | |
396 | Float_t ed, ed2; | |
397 | Int_t kn, i, left, j, id; | |
398 | const Float_t kzero=0; | |
399 | Int_t ievent=gAlice->GetRunLoader()->GetHeader()->GetEvent()+1; | |
400 | // | |
401 | // Energy loss information | |
402 | if(ievent) { | |
403 | printf("***************** Energy Loss Information per event (GEV) *****************\n"); | |
404 | for(kn=1;kn<fEventEnergy.GetSize();kn++) { | |
405 | ed=fSummEnergy[kn]; | |
406 | if(ed>0) { | |
407 | fEventEnergy[ndep]=kn; | |
408 | if(ievent>1) { | |
409 | ed=ed/ievent; | |
410 | ed2=fSum2Energy[kn]; | |
411 | ed2=ed2/ievent; | |
412 | ed2=100*TMath::Sqrt(TMath::Max(ed2-ed*ed,kzero))/ed; | |
413 | } else | |
414 | ed2=99; | |
415 | fSummEnergy[ndep]=ed; | |
416 | fSum2Energy[ndep]=TMath::Min(static_cast<Float_t>(99.),TMath::Max(ed2,kzero)); | |
417 | edtot+=ed; | |
418 | ndep++; | |
419 | } | |
420 | } | |
421 | for(kn=0;kn<(ndep-1)/3+1;kn++) { | |
422 | left=ndep-kn*3; | |
423 | for(i=0;i<(3<left?3:left);i++) { | |
424 | j=kn*3+i; | |
425 | id=Int_t (fEventEnergy[j]+0.1); | |
426 | printf(" %s %10.3f +- %10.3f%%;",gMC->VolName(id),fSummEnergy[j],fSum2Energy[j]); | |
427 | } | |
428 | printf("\n"); | |
429 | } | |
430 | // | |
431 | // Relative energy loss in different detectors | |
432 | printf("******************** Relative Energy Loss per event ********************\n"); | |
433 | printf("Total energy loss per event %10.3f GeV\n",edtot); | |
434 | for(kn=0;kn<(ndep-1)/5+1;kn++) { | |
435 | left=ndep-kn*5; | |
436 | for(i=0;i<(5<left?5:left);i++) { | |
437 | j=kn*5+i; | |
438 | id=Int_t (fEventEnergy[j]+0.1); | |
439 | printf(" %s %10.3f%%;",gMC->VolName(id),100*fSummEnergy[j]/edtot); | |
440 | } | |
441 | printf("\n"); | |
442 | } | |
443 | for(kn=0;kn<75;kn++) printf("*"); | |
444 | printf("\n"); | |
445 | } | |
446 | // | |
447 | // Reset the TArray's | |
448 | // fEventEnergy.Set(0); | |
449 | // fSummEnergy.Set(0); | |
450 | // fSum2Energy.Set(0); | |
451 | } | |
452 | ||
453 | //_____________________________________________________________________________ | |
454 | void AliMC::BeginEvent() | |
455 | { | |
456 | // | |
457 | // Clean-up previous event | |
458 | // Energy scores | |
21bf7095 | 459 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); |
460 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
461 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
462 | AliDebug(1, " BEGINNING EVENT "); | |
463 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
464 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
465 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
5d12ce38 | 466 | |
467 | AliRunLoader *runloader=gAlice->GetRunLoader(); | |
468 | ||
469 | /*******************************/ | |
470 | /* Clean after eventual */ | |
471 | /* previous event */ | |
472 | /*******************************/ | |
473 | ||
474 | ||
475 | //Set the next event in Run Loader -> Cleans trees (TreeK and all trees in detectors), | |
476 | gAlice->SetEventNrInRun(gAlice->GetEventNrInRun()+1); | |
477 | runloader->SetEventNumber(gAlice->GetEventNrInRun());// sets new files, cleans the previous event stuff, if necessary, etc., | |
21bf7095 | 478 | AliDebug(1, Form("EventNr is %d",gAlice->GetEventNrInRun())); |
5d12ce38 | 479 | |
480 | fEventEnergy.Reset(); | |
481 | // Clean detector information | |
482 | ||
483 | if (runloader->Stack()) | |
484 | runloader->Stack()->Reset();//clean stack -> tree is unloaded | |
485 | else | |
486 | runloader->MakeStack();//or make a new one | |
504b172d | 487 | |
488 | if(gAlice->Lego() == 0x0) | |
489 | { | |
21bf7095 | 490 | AliDebug(1, "fRunLoader->MakeTree(K)"); |
504b172d | 491 | runloader->MakeTree("K"); |
492 | } | |
493 | ||
21bf7095 | 494 | AliDebug(1, "gMC->SetStack(fRunLoader->Stack())"); |
5d12ce38 | 495 | gMC->SetStack(gAlice->GetRunLoader()->Stack());//Was in InitMC - but was moved here |
496 | //because we don't have guarantee that | |
497 | //stack pointer is not going to change from event to event | |
498 | //since it bellobgs to header and is obtained via RunLoader | |
499 | // | |
500 | // Reset all Detectors & kinematics & make/reset trees | |
501 | // | |
502 | ||
503 | runloader->GetHeader()->Reset(gAlice->GetRunNumber(),gAlice->GetEvNumber(), | |
504 | gAlice->GetEventNrInRun()); | |
505 | // fRunLoader->WriteKinematics("OVERWRITE"); is there any reason to rewrite here since MakeTree does so | |
506 | ||
504b172d | 507 | if(gAlice->Lego()) |
508 | { | |
509 | gAlice->Lego()->BeginEvent(); | |
510 | return; | |
511 | } | |
512 | ||
5d12ce38 | 513 | |
21bf7095 | 514 | AliDebug(1, "ResetHits()"); |
5d12ce38 | 515 | ResetHits(); |
504b172d | 516 | |
21bf7095 | 517 | AliDebug(1, "fRunLoader->MakeTree(H)"); |
5d12ce38 | 518 | runloader->MakeTree("H"); |
504b172d | 519 | |
21bf7095 | 520 | AliDebug(1, "fRunLoader->MakeTrackRefsContainer()"); |
504b172d | 521 | runloader->MakeTrackRefsContainer();//for insurance |
5d12ce38 | 522 | |
5d12ce38 | 523 | |
524 | //create new branches and SetAdresses | |
525 | TIter next(gAlice->Modules()); | |
526 | AliModule *detector; | |
527 | while((detector = (AliModule*)next())) | |
528 | { | |
21bf7095 | 529 | AliDebug(2, Form("%s->MakeBranch(H)",detector->GetName())); |
5d12ce38 | 530 | detector->MakeBranch("H"); |
21bf7095 | 531 | AliDebug(2, Form("%s->MakeBranchTR()",detector->GetName())); |
5d12ce38 | 532 | detector->MakeBranchTR(); |
21bf7095 | 533 | AliDebug(2, Form("%s->SetTreeAddress()",detector->GetName())); |
5d12ce38 | 534 | detector->SetTreeAddress(); |
535 | } | |
ab03c084 | 536 | // make branch for AliRun track References |
537 | TTree * treeTR = runloader->TreeTR(); | |
538 | if (treeTR){ | |
539 | // make branch for central track references | |
540 | if (!fTrackReferences) fTrackReferences = new TClonesArray("AliTrackReference",0); | |
541 | TBranch *branch; | |
542 | branch = treeTR->Branch("AliRun",&fTrackReferences); | |
543 | branch->SetAddress(&fTrackReferences); | |
544 | } | |
545 | // | |
5d12ce38 | 546 | } |
547 | ||
548 | //_______________________________________________________________________ | |
549 | void AliMC::ResetHits() | |
550 | { | |
551 | // | |
552 | // Reset all Detectors hits | |
553 | // | |
554 | TIter next(gAlice->Modules()); | |
555 | AliModule *detector; | |
556 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
557 | detector->ResetHits(); | |
558 | } | |
559 | } | |
560 | ||
561 | //_______________________________________________________________________ | |
562 | void AliMC::PostTrack() | |
563 | { | |
d0d4a6b3 | 564 | // Posts tracks for each module |
4a9de4af | 565 | TObjArray &dets = *gAlice->Modules(); |
566 | AliModule *module; | |
567 | ||
568 | for(Int_t i=0; i<=gAlice->GetNdets(); i++) | |
569 | if((module = dynamic_cast<AliModule*>(dets[i]))) | |
570 | module->PostTrack(); | |
5d12ce38 | 571 | } |
572 | ||
573 | //_______________________________________________________________________ | |
574 | void AliMC::FinishPrimary() | |
575 | { | |
576 | // | |
577 | // Called at the end of each primary track | |
578 | // | |
579 | AliRunLoader *runloader=gAlice->GetRunLoader(); | |
580 | // static Int_t count=0; | |
581 | // const Int_t times=10; | |
582 | // This primary is finished, purify stack | |
c75cfb51 | 583 | #if ROOT_VERSION_CODE > 262152 |
05c7517d | 584 | if (!(gMC->SecondariesAreOrdered())) |
585 | runloader->Stack()->ReorderKine(); | |
c75cfb51 | 586 | #endif |
5d12ce38 | 587 | runloader->Stack()->PurifyKine(); |
504b172d | 588 | |
5d12ce38 | 589 | TIter next(gAlice->Modules()); |
590 | AliModule *detector; | |
591 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
592 | detector->FinishPrimary(); | |
504b172d | 593 | AliLoader* loader = detector->GetLoader(); |
594 | if(loader) | |
595 | { | |
596 | TTree* treeH = loader->TreeH(); | |
597 | if (treeH) treeH->Fill(); //can be Lego run and treeH can not exist | |
598 | } | |
5d12ce38 | 599 | } |
600 | ||
601 | // Write out track references if any | |
602 | if (runloader->TreeTR()) runloader->TreeTR()->Fill(); | |
603 | } | |
604 | ||
605 | //_______________________________________________________________________ | |
606 | void AliMC::FinishEvent() | |
607 | { | |
608 | // | |
609 | // Called at the end of the event. | |
610 | // | |
611 | ||
612 | // | |
38ca2ad6 | 613 | |
5d12ce38 | 614 | if(gAlice->Lego()) gAlice->Lego()->FinishEvent(); |
615 | ||
616 | TIter next(gAlice->Modules()); | |
617 | AliModule *detector; | |
618 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
619 | detector->FinishEvent(); | |
620 | } | |
621 | ||
622 | //Update the energy deposit tables | |
623 | Int_t i; | |
624 | for(i=0;i<fEventEnergy.GetSize();i++) | |
625 | { | |
626 | fSummEnergy[i]+=fEventEnergy[i]; | |
627 | fSum2Energy[i]+=fEventEnergy[i]*fEventEnergy[i]; | |
628 | } | |
629 | ||
630 | AliRunLoader *runloader=gAlice->GetRunLoader(); | |
631 | ||
632 | AliHeader* header = runloader->GetHeader(); | |
633 | AliStack* stack = runloader->Stack(); | |
634 | if ( (header == 0x0) || (stack == 0x0) ) | |
635 | {//check if we got header and stack. If not cry and exit aliroot | |
21bf7095 | 636 | AliFatal("Can not get the stack or header from LOADER"); |
5d12ce38 | 637 | return;//never reached |
638 | } | |
639 | // Update Header information | |
640 | header->SetNprimary(stack->GetNprimary()); | |
641 | header->SetNtrack(stack->GetNtrack()); | |
642 | ||
643 | ||
644 | // Write out the kinematics | |
38ca2ad6 | 645 | if (!gAlice->Lego()) stack->FinishEvent(); |
5d12ce38 | 646 | |
647 | // Write out the event Header information | |
648 | TTree* treeE = runloader->TreeE(); | |
649 | if (treeE) | |
650 | { | |
651 | header->SetStack(stack); | |
652 | treeE->Fill(); | |
653 | } | |
654 | else | |
655 | { | |
21bf7095 | 656 | AliError("Can not get TreeE from RL"); |
5d12ce38 | 657 | } |
658 | ||
504b172d | 659 | if(gAlice->Lego() == 0x0) |
660 | { | |
661 | runloader->WriteKinematics("OVERWRITE"); | |
662 | runloader->WriteTrackRefs("OVERWRITE"); | |
663 | runloader->WriteHits("OVERWRITE"); | |
664 | } | |
665 | ||
21bf7095 | 666 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); |
667 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
668 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
669 | AliDebug(1, " FINISHING EVENT "); | |
670 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
671 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
672 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
5d12ce38 | 673 | } |
674 | ||
675 | //_______________________________________________________________________ | |
676 | void AliMC::Field(const Double_t* x, Double_t* b) const | |
677 | { | |
d0d4a6b3 | 678 | // Calculates field "b" at point "x" |
5d12ce38 | 679 | gAlice->Field(x,b); |
680 | } | |
681 | ||
682 | //_______________________________________________________________________ | |
683 | void AliMC::Init() | |
684 | { | |
d0d4a6b3 | 685 | // MC initialization |
5d12ce38 | 686 | |
687 | //=================Create Materials and geometry | |
688 | gMC->Init(); | |
4e889ff4 | 689 | // Set alignable volumes for the whole geometry (with old root) |
690 | #if ROOT_VERSION_CODE < 331527 | |
691 | SetAllAlignableVolumes(); | |
692 | #endif | |
5d12ce38 | 693 | //Read the cuts for all materials |
694 | ReadTransPar(); | |
695 | //Build the special IMEDIA table | |
696 | MediaTable(); | |
697 | ||
698 | //Compute cross-sections | |
699 | gMC->BuildPhysics(); | |
700 | ||
5d12ce38 | 701 | //Initialise geometry deposition table |
702 | fEventEnergy.Set(gMC->NofVolumes()+1); | |
703 | fSummEnergy.Set(gMC->NofVolumes()+1); | |
704 | fSum2Energy.Set(gMC->NofVolumes()+1); | |
705 | ||
706 | // | |
707 | fMCQA = new AliMCQA(gAlice->GetNdets()); | |
708 | ||
709 | // Register MC in configuration | |
710 | AliConfig::Instance()->Add(gMC); | |
711 | ||
712 | } | |
713 | ||
714 | //_______________________________________________________________________ | |
715 | void AliMC::MediaTable() | |
716 | { | |
717 | // | |
718 | // Built media table to get from the media number to | |
719 | // the detector id | |
720 | // | |
721 | ||
722 | Int_t kz, nz, idt, lz, i, k, ind; | |
723 | // Int_t ibeg; | |
724 | TObjArray &dets = *gAlice->Detectors(); | |
725 | AliModule *det; | |
726 | Int_t ndets=gAlice->GetNdets(); | |
727 | // | |
728 | // For all detectors | |
729 | for (kz=0;kz<ndets;kz++) { | |
730 | // If detector is defined | |
731 | if((det=dynamic_cast<AliModule*>(dets[kz]))) { | |
732 | TArrayI &idtmed = *(det->GetIdtmed()); | |
733 | for(nz=0;nz<100;nz++) { | |
0561efeb | 734 | |
5d12ce38 | 735 | // Find max and min material number |
736 | if((idt=idtmed[nz])) { | |
737 | det->LoMedium() = det->LoMedium() < idt ? det->LoMedium() : idt; | |
738 | det->HiMedium() = det->HiMedium() > idt ? det->HiMedium() : idt; | |
739 | } | |
740 | } | |
741 | if(det->LoMedium() > det->HiMedium()) { | |
742 | det->LoMedium() = 0; | |
743 | det->HiMedium() = 0; | |
744 | } else { | |
745 | if(det->HiMedium() > fImedia->GetSize()) { | |
21bf7095 | 746 | AliError(Form("Increase fImedia from %d to %d", |
747 | fImedia->GetSize(),det->HiMedium())); | |
5d12ce38 | 748 | return; |
749 | } | |
750 | // Tag all materials in rage as belonging to detector kz | |
751 | for(lz=det->LoMedium(); lz<= det->HiMedium(); lz++) { | |
752 | (*fImedia)[lz]=kz; | |
753 | } | |
754 | } | |
755 | } | |
756 | } | |
757 | // | |
758 | // Print summary table | |
21bf7095 | 759 | AliInfo("Tracking media ranges:"); |
760 | ToAliInfo( | |
5d12ce38 | 761 | for(i=0;i<(ndets-1)/6+1;i++) { |
762 | for(k=0;k< (6<ndets-i*6?6:ndets-i*6);k++) { | |
763 | ind=i*6+k; | |
764 | det=dynamic_cast<AliModule*>(dets[ind]); | |
765 | if(det) | |
766 | printf(" %6s: %3d -> %3d;",det->GetName(),det->LoMedium(), | |
767 | det->HiMedium()); | |
768 | else | |
769 | printf(" %6s: %3d -> %3d;","NULL",0,0); | |
770 | } | |
771 | printf("\n"); | |
772 | } | |
21bf7095 | 773 | ) |
5d12ce38 | 774 | } |
775 | ||
776 | //_______________________________________________________________________ | |
777 | void AliMC::ReadTransPar() | |
778 | { | |
779 | // | |
780 | // Read filename to set the transport parameters | |
781 | // | |
782 | ||
783 | ||
784 | const Int_t kncuts=10; | |
785 | const Int_t knflags=11; | |
786 | const Int_t knpars=kncuts+knflags; | |
787 | const char kpars[knpars][7] = {"CUTGAM" ,"CUTELE","CUTNEU","CUTHAD","CUTMUO", | |
788 | "BCUTE","BCUTM","DCUTE","DCUTM","PPCUTM","ANNI", | |
789 | "BREM","COMP","DCAY","DRAY","HADR","LOSS", | |
790 | "MULS","PAIR","PHOT","RAYL"}; | |
791 | char line[256]; | |
792 | char detName[7]; | |
793 | char* filtmp; | |
794 | Float_t cut[kncuts]; | |
795 | Int_t flag[knflags]; | |
796 | Int_t i, itmed, iret, ktmed, kz; | |
797 | FILE *lun; | |
798 | // | |
799 | // See whether the file is there | |
800 | filtmp=gSystem->ExpandPathName(fTransParName.Data()); | |
801 | lun=fopen(filtmp,"r"); | |
802 | delete [] filtmp; | |
803 | if(!lun) { | |
21bf7095 | 804 | AliWarning(Form("File %s does not exist!",fTransParName.Data())); |
5d12ce38 | 805 | return; |
806 | } | |
807 | // | |
5d12ce38 | 808 | while(1) { |
809 | // Initialise cuts and flags | |
810 | for(i=0;i<kncuts;i++) cut[i]=-99; | |
811 | for(i=0;i<knflags;i++) flag[i]=-99; | |
812 | itmed=0; | |
813 | for(i=0;i<256;i++) line[i]='\0'; | |
814 | // Read up to the end of line excluded | |
815 | iret=fscanf(lun,"%[^\n]",line); | |
816 | if(iret<0) { | |
817 | //End of file | |
818 | fclose(lun); | |
5d12ce38 | 819 | return; |
820 | } | |
821 | // Read the end of line | |
822 | fscanf(lun,"%*c"); | |
823 | if(!iret) continue; | |
824 | if(line[0]=='*') continue; | |
825 | // Read the numbers | |
826 | iret=sscanf(line,"%s %d %f %f %f %f %f %f %f %f %f %f %d %d %d %d %d %d %d %d %d %d %d", | |
827 | detName,&itmed,&cut[0],&cut[1],&cut[2],&cut[3],&cut[4],&cut[5],&cut[6],&cut[7],&cut[8], | |
828 | &cut[9],&flag[0],&flag[1],&flag[2],&flag[3],&flag[4],&flag[5],&flag[6],&flag[7], | |
829 | &flag[8],&flag[9],&flag[10]); | |
830 | if(!iret) continue; | |
831 | if(iret<0) { | |
832 | //reading error | |
21bf7095 | 833 | AliWarning(Form("Error reading file %s",fTransParName.Data())); |
5d12ce38 | 834 | continue; |
835 | } | |
836 | // Check that the module exist | |
837 | AliModule *mod = gAlice->GetModule(detName); | |
838 | if(mod) { | |
839 | // Get the array of media numbers | |
840 | TArrayI &idtmed = *mod->GetIdtmed(); | |
841 | // Check that the tracking medium code is valid | |
842 | if(0<=itmed && itmed < 100) { | |
843 | ktmed=idtmed[itmed]; | |
844 | if(!ktmed) { | |
21bf7095 | 845 | AliWarning(Form("Invalid tracking medium code %d for %s",itmed,mod->GetName())); |
5d12ce38 | 846 | continue; |
847 | } | |
848 | // Set energy thresholds | |
849 | for(kz=0;kz<kncuts;kz++) { | |
850 | if(cut[kz]>=0) { | |
21bf7095 | 851 | AliDebug(2, Form("%-6s set to %10.3E for tracking medium code %4d for %s", |
852 | kpars[kz],cut[kz],itmed,mod->GetName())); | |
5d12ce38 | 853 | gMC->Gstpar(ktmed,kpars[kz],cut[kz]); |
854 | } | |
855 | } | |
856 | // Set transport mechanisms | |
857 | for(kz=0;kz<knflags;kz++) { | |
858 | if(flag[kz]>=0) { | |
21bf7095 | 859 | AliDebug(2, Form("%-6s set to %10d for tracking medium code %4d for %s", |
860 | kpars[kncuts+kz],flag[kz],itmed,mod->GetName())); | |
5d12ce38 | 861 | gMC->Gstpar(ktmed,kpars[kncuts+kz],Float_t(flag[kz])); |
862 | } | |
863 | } | |
864 | } else { | |
21bf7095 | 865 | AliWarning(Form("Invalid medium code %d",itmed)); |
5d12ce38 | 866 | continue; |
867 | } | |
868 | } else { | |
21bf7095 | 869 | AliDebug(1, Form("%s not present",detName)); |
5d12ce38 | 870 | continue; |
871 | } | |
872 | } | |
873 | } | |
874 | ||
875 | //_______________________________________________________________________ | |
876 | void AliMC::SetTransPar(const char *filename) | |
877 | { | |
878 | // | |
879 | // Sets the file name for transport parameters | |
880 | // | |
881 | fTransParName = filename; | |
882 | } | |
883 | ||
884 | //_______________________________________________________________________ | |
0054628d | 885 | void AliMC::Browse(TBrowser *b) |
5d12ce38 | 886 | { |
887 | // | |
888 | // Called when the item "Run" is clicked on the left pane | |
889 | // of the Root browser. | |
890 | // It displays the Root Trees and all detectors. | |
891 | // | |
892 | //detectors are in folders anyway | |
893 | b->Add(fMCQA,"AliMCQA"); | |
894 | } | |
895 | ||
5d12ce38 | 896 | //_______________________________________________________________________ |
897 | void AliMC::AddHit(Int_t id, Int_t track, Int_t *vol, Float_t *hits) const | |
898 | { | |
899 | // | |
900 | // Add a hit to detector id | |
901 | // | |
902 | TObjArray &dets = *gAlice->Modules(); | |
903 | if(dets[id]) dynamic_cast<AliModule*>(dets[id])->AddHit(track,vol,hits); | |
904 | } | |
905 | ||
906 | //_______________________________________________________________________ | |
907 | void AliMC::AddDigit(Int_t id, Int_t *tracks, Int_t *digits) const | |
908 | { | |
909 | // | |
910 | // Add digit to detector id | |
911 | // | |
912 | TObjArray &dets = *gAlice->Modules(); | |
913 | if(dets[id]) dynamic_cast<AliModule*>(dets[id])->AddDigit(tracks,digits); | |
914 | } | |
915 | ||
916 | //_______________________________________________________________________ | |
917 | Int_t AliMC::GetCurrentTrackNumber() const { | |
918 | // | |
919 | // Returns current track | |
920 | // | |
921 | return gAlice->GetRunLoader()->Stack()->GetCurrentTrackNumber(); | |
922 | } | |
923 | ||
924 | //_______________________________________________________________________ | |
925 | void AliMC::DumpPart (Int_t i) const | |
926 | { | |
927 | // | |
928 | // Dumps particle i in the stack | |
929 | // | |
930 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
931 | if (runloader->Stack()) | |
932 | runloader->Stack()->DumpPart(i); | |
933 | } | |
934 | ||
935 | //_______________________________________________________________________ | |
936 | void AliMC::DumpPStack () const | |
937 | { | |
938 | // | |
939 | // Dumps the particle stack | |
940 | // | |
941 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
942 | if (runloader->Stack()) | |
943 | runloader->Stack()->DumpPStack(); | |
944 | } | |
945 | ||
946 | //_______________________________________________________________________ | |
947 | Int_t AliMC::GetNtrack() const { | |
948 | // | |
949 | // Returns number of tracks in stack | |
950 | // | |
951 | Int_t ntracks = -1; | |
952 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
953 | if (runloader->Stack()) | |
954 | ntracks = runloader->Stack()->GetNtrack(); | |
955 | return ntracks; | |
956 | } | |
957 | ||
958 | //_______________________________________________________________________ | |
959 | Int_t AliMC::GetPrimary(Int_t track) const | |
960 | { | |
961 | // | |
962 | // return number of primary that has generated track | |
963 | // | |
964 | Int_t nprimary = -999; | |
965 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
966 | if (runloader->Stack()) | |
967 | nprimary = runloader->Stack()->GetPrimary(track); | |
968 | return nprimary; | |
969 | } | |
970 | ||
971 | //_______________________________________________________________________ | |
972 | TParticle* AliMC::Particle(Int_t i) const | |
973 | { | |
d0d4a6b3 | 974 | // Returns the i-th particle from the stack taking into account |
975 | // the remaping done by PurifyKine | |
5d12ce38 | 976 | AliRunLoader * runloader = gAlice->GetRunLoader(); |
977 | if (runloader) | |
978 | if (runloader->Stack()) | |
979 | return runloader->Stack()->Particle(i); | |
980 | return 0x0; | |
981 | } | |
982 | ||
983 | //_______________________________________________________________________ | |
984 | TObjArray* AliMC::Particles() const { | |
985 | // | |
986 | // Returns pointer to Particles array | |
987 | // | |
988 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
989 | if (runloader) | |
990 | if (runloader->Stack()) | |
991 | return runloader->Stack()->Particles(); | |
992 | return 0x0; | |
993 | } | |
994 | ||
995 | //_______________________________________________________________________ | |
996 | void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom, | |
997 | Float_t *vpos, Float_t *polar, Float_t tof, | |
2057aecb | 998 | TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const |
5d12ce38 | 999 | { |
1000 | // Delegate to stack | |
1001 | // | |
1002 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
1003 | if (runloader) | |
1004 | if (runloader->Stack()) | |
1005 | runloader->Stack()->PushTrack(done, parent, pdg, pmom, vpos, polar, tof, | |
1006 | mech, ntr, weight, is); | |
1007 | } | |
1008 | ||
1009 | //_______________________________________________________________________ | |
1010 | void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg, | |
1011 | Double_t px, Double_t py, Double_t pz, Double_t e, | |
1012 | Double_t vx, Double_t vy, Double_t vz, Double_t tof, | |
1013 | Double_t polx, Double_t poly, Double_t polz, | |
2057aecb | 1014 | TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const |
5d12ce38 | 1015 | { |
1016 | // Delegate to stack | |
1017 | // | |
1018 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
1019 | if (runloader) | |
1020 | if (runloader->Stack()) | |
1021 | runloader->Stack()->PushTrack(done, parent, pdg, px, py, pz, e, vx, vy, vz, tof, | |
1022 | polx, poly, polz, mech, ntr, weight, is); | |
1023 | } | |
1024 | ||
1025 | //_______________________________________________________________________ | |
2057aecb | 1026 | void AliMC::SetHighWaterMark(Int_t nt) const |
5d12ce38 | 1027 | { |
1028 | // | |
1029 | // Set high water mark for last track in event | |
1030 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
1031 | if (runloader) | |
1032 | if (runloader->Stack()) | |
1033 | runloader->Stack()->SetHighWaterMark(nt); | |
1034 | } | |
1035 | ||
1036 | //_______________________________________________________________________ | |
2057aecb | 1037 | void AliMC::KeepTrack(Int_t track) const |
5d12ce38 | 1038 | { |
1039 | // | |
1040 | // Delegate to stack | |
1041 | // | |
1042 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
1043 | if (runloader) | |
1044 | if (runloader->Stack()) | |
1045 | runloader->Stack()->KeepTrack(track); | |
1046 | } | |
1047 | ||
1048 | //_______________________________________________________________________ | |
2057aecb | 1049 | void AliMC::FlagTrack(Int_t track) const |
5d12ce38 | 1050 | { |
1051 | // Delegate to stack | |
1052 | // | |
1053 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
1054 | if (runloader) | |
1055 | if (runloader->Stack()) | |
1056 | runloader->Stack()->FlagTrack(track); | |
1057 | } | |
1058 | ||
1059 | //_______________________________________________________________________ | |
2057aecb | 1060 | void AliMC::SetCurrentTrack(Int_t track) const |
5d12ce38 | 1061 | { |
1062 | // | |
1063 | // Set current track number | |
1064 | // | |
1065 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
1066 | if (runloader) | |
1067 | if (runloader->Stack()) | |
1068 | runloader->Stack()->SetCurrentTrack(track); | |
1069 | } | |
1070 | ||
1071 | //_______________________________________________________________________ | |
1072 | void AliMC::AddTrackReference(Int_t label){ | |
1073 | // | |
1074 | // add a trackrefernce to the list | |
1075 | if (!fTrackReferences) { | |
21bf7095 | 1076 | AliError("Container trackrefernce not active"); |
5d12ce38 | 1077 | return; |
1078 | } | |
1079 | Int_t nref = fTrackReferences->GetEntriesFast(); | |
1080 | TClonesArray &lref = *fTrackReferences; | |
1081 | new(lref[nref]) AliTrackReference(label); | |
1082 | } | |
1083 | ||
1084 | ||
1085 | ||
1086 | //_______________________________________________________________________ | |
1087 | void AliMC::ResetTrackReferences() | |
1088 | { | |
1089 | // | |
1090 | // Reset all references | |
1091 | // | |
1092 | if (fTrackReferences) fTrackReferences->Clear(); | |
1093 | ||
1094 | TIter next(gAlice->Modules()); | |
1095 | AliModule *detector; | |
1096 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
1097 | detector->ResetTrackReferences(); | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | void AliMC::RemapTrackReferencesIDs(Int_t *map) | |
1102 | { | |
1103 | // | |
1104 | // Remapping track reference | |
1105 | // Called at finish primary | |
1106 | // | |
1107 | if (!fTrackReferences) return; | |
4e490a96 | 1108 | Int_t nEntries = fTrackReferences->GetEntries(); |
1109 | for (Int_t i=0; i < nEntries; i++){ | |
1110 | AliTrackReference * ref = dynamic_cast<AliTrackReference*>(fTrackReferences->UncheckedAt(i)); | |
1111 | if (ref) { | |
1112 | Int_t newID = map[ref->GetTrack()]; | |
1113 | if (newID>=0) ref->SetTrack(newID); | |
1114 | else { | |
1115 | ref->SetBit(kNotDeleted,kFALSE); | |
1116 | fTrackReferences->RemoveAt(i); | |
1117 | } | |
1118 | } // if ref | |
5d12ce38 | 1119 | } |
1120 | fTrackReferences->Compress(); | |
1121 | } | |
0561efeb | 1122 | |
1123 | void AliMC::FixParticleDecaytime() | |
1124 | { | |
1125 | // | |
1126 | // Fix the particle decay time according to rmin and rmax for decays | |
1127 | // | |
1128 | ||
1129 | TLorentzVector p; | |
1130 | gMC->TrackMomentum(p); | |
1131 | Double_t tmin, tmax; | |
1132 | Double_t b; | |
1133 | ||
1134 | // Transverse velocity | |
1135 | Double_t vt = p.Pt() / p.E(); | |
1136 | ||
1137 | if ((b = gAlice->Field()->SolenoidField()) > 0.) { // [kG] | |
1138 | ||
1139 | // Radius of helix | |
1140 | ||
1141 | Double_t rho = p.Pt() / 0.0003 / b; // [cm] | |
1142 | ||
1143 | // Revolution frequency | |
1144 | ||
1145 | Double_t omega = vt / rho; | |
1146 | ||
1147 | // Maximum and minimum decay time | |
1148 | // | |
1149 | // Check for curlers first | |
1150 | if (fRDecayMax * fRDecayMax / rho / rho / 2. > 1.) return; | |
1151 | ||
1152 | // | |
1153 | ||
1154 | tmax = TMath::ACos(1. - fRDecayMax * fRDecayMax / rho / rho / 2.) / omega; // [ct] | |
1155 | tmin = TMath::ACos(1. - fRDecayMin * fRDecayMin / rho / rho / 2.) / omega; // [ct] | |
1156 | } else { | |
1157 | tmax = fRDecayMax / vt; // [ct] | |
1158 | tmin = fRDecayMin / vt; // [ct] | |
1159 | } | |
1160 | ||
1161 | // | |
1162 | // Dial t using the two limits | |
1163 | Double_t t = tmin + (tmax - tmin) * gRandom->Rndm(); // [ct] | |
1164 | // | |
1165 | // | |
1166 | // Force decay time in transport code | |
1167 | // | |
fa7ca4da | 1168 | gMC->ForceDecayTime(t / 2.99792458e10); |
0561efeb | 1169 | } |