Changes in AliESDEvent fwd declarations.
[u/mrichter/AliRoot.git] / STEER / AliMC.cxx
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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"
942a9039 41#include "AliHit.h"
5d12ce38 42#include "AliStack.h"
0561efeb 43#include "AliMagF.h"
5d12ce38 44#include "AliTrackReference.h"
39b3f8ba 45#include "AliSimulation.h"
392808e8 46#include "AliGeomManager.h"
ced249e6 47#include "AliCDBManager.h"
48#include "AliCDBStorage.h"
49#include "AliCDBEntry.h"
5d12ce38 50
51
52ClassImp(AliMC)
53
54//_______________________________________________________________________
55AliMC::AliMC() :
56 fGenerator(0),
57 fEventEnergy(0),
58 fSummEnergy(0),
59 fSum2Energy(0),
60 fTrRmax(1.e10),
61 fTrZmax(1.e10),
90e48c0c 62 fRDecayMax(1.e10),
38ca2ad6 63 fRDecayMin(-1.),
90e48c0c 64 fDecayPdg(0),
5d12ce38 65 fImedia(0),
66 fTransParName("\0"),
67 fMCQA(0),
68 fHitLists(0),
69 fTrackReferences(0)
70
71{
d0d4a6b3 72 //default constructor
0561efeb 73 DecayLimits();
5d12ce38 74}
75
76//_______________________________________________________________________
77AliMC::AliMC(const char *name, const char *title) :
78 TVirtualMCApplication(name, title),
79 fGenerator(0),
80 fEventEnergy(0),
81 fSummEnergy(0),
82 fSum2Energy(0),
83 fTrRmax(1.e10),
84 fTrZmax(1.e10),
90e48c0c 85 fRDecayMax(1.e10),
38ca2ad6 86 fRDecayMin(-1.),
90e48c0c 87 fDecayPdg(0),
5d12ce38 88 fImedia(new TArrayI(1000)),
89 fTransParName("\0"),
90 fMCQA(0),
91 fHitLists(new TList()),
92 fTrackReferences(new TClonesArray("AliTrackReference", 100))
93{
d0d4a6b3 94 //constructor
5d12ce38 95 // Set transport parameters
96 SetTransPar();
0561efeb 97 DecayLimits();
5d12ce38 98 // Prepare the tracking medium lists
99 for(Int_t i=0;i<1000;i++) (*fImedia)[i]=-99;
5d12ce38 100}
101
102//_______________________________________________________________________
103AliMC::AliMC(const AliMC &mc) :
104 TVirtualMCApplication(mc),
105 fGenerator(0),
106 fEventEnergy(0),
107 fSummEnergy(0),
108 fSum2Energy(0),
109 fTrRmax(1.e10),
110 fTrZmax(1.e10),
90e48c0c 111 fRDecayMax(1.e10),
38ca2ad6 112 fRDecayMin(-1.),
90e48c0c 113 fDecayPdg(0),
5d12ce38 114 fImedia(0),
115 fTransParName("\0"),
116 fMCQA(0),
117 fHitLists(0),
118 fTrackReferences(0)
119{
120 //
90e48c0c 121 // Copy constructor for AliMC
5d12ce38 122 //
123 mc.Copy(*this);
124}
125
126//_______________________________________________________________________
127AliMC::~AliMC()
128{
d0d4a6b3 129 //destructor
5d12ce38 130 delete fGenerator;
131 delete fImedia;
132 delete fMCQA;
133 delete fHitLists;
134 // Delete track references
135 if (fTrackReferences) {
136 fTrackReferences->Delete();
137 delete fTrackReferences;
138 fTrackReferences = 0;
139 }
140
141}
142
143//_______________________________________________________________________
6c4904c2 144void AliMC::Copy(TObject &) const
5d12ce38 145{
d0d4a6b3 146 //dummy Copy function
21bf7095 147 AliFatal("Not implemented!");
5d12ce38 148}
149
150//_______________________________________________________________________
151void AliMC::ConstructGeometry()
152{
153 //
4a9de4af 154 // Either load geometry from file or create it through usual
155 // loop on detectors. In the first case the method
156 // AliModule::CreateMaterials() only builds fIdtmed and is postponed
157 // at InitGeometry().
5d12ce38 158 //
159
ced249e6 160 if(gAlice->IsRootGeometry()){ //load geometry either from CDB or from file
161 if(gAlice->IsGeomFromCDB()){
162 AliInfo("Loading geometry from CDB default storage");
163 AliCDBPath path("GRP","Geometry","Data");
164 AliCDBEntry *entry=AliCDBManager::Instance()->Get(path.GetPath());
165 if(!entry) AliFatal("Unable to load geometry from CDB!");
166 entry->SetOwner(0);
167 gGeoManager = (TGeoManager*) entry->GetObject();
168 if (!gGeoManager) AliFatal("TGeoManager object not found in the specified CDB entry!");
4a9de4af 169 }else{
ced249e6 170 // Load geometry
171 const char *geomfilename = gAlice->GetGeometryFileName();
172 if(gSystem->ExpandPathName(geomfilename)){
173 AliInfo(Form("Loading geometry from file:\n %40s",geomfilename));
174 TGeoManager::Import(geomfilename);
175 }else{
176 AliInfo(Form("Geometry file %40s not found!\n",geomfilename));
177 return;
178 }
4a9de4af 179 }
180 }else{
181 // Create modules, materials, geometry
5d12ce38 182 TStopwatch stw;
183 TIter next(gAlice->Modules());
184 AliModule *detector;
21bf7095 185 AliDebug(1, "Geometry creation:");
5d12ce38 186 while((detector = dynamic_cast<AliModule*>(next()))) {
187 stw.Start();
188 // Initialise detector materials and geometry
189 detector->CreateMaterials();
190 detector->CreateGeometry();
21bf7095 191 AliInfo(Form("%10s R:%.2fs C:%.2fs",
192 detector->GetName(),stw.RealTime(),stw.CpuTime()));
5d12ce38 193 }
4a9de4af 194 }
195
5d12ce38 196}
197
198//_______________________________________________________________________
39b3f8ba 199Bool_t AliMC::MisalignGeometry()
200{
201// Call misalignment code if AliSimulation object was defined.
0717eed2 202
ced249e6 203 if(!gAlice->IsRootGeometry()){
204 //Set alignable volumes for the whole geometry
205 SetAllAlignableVolumes();
206 }
0717eed2 207 // Misalign geometry via AliSimulation instance
39b3f8ba 208 if (!AliSimulation::GetInstance()) return kFALSE;
392808e8 209 AliGeomManager::SetGeometry(gGeoManager);
39b3f8ba 210 return AliSimulation::GetInstance()->MisalignGeometry(gAlice->GetRunLoader());
211}
212
213//_______________________________________________________________________
661663fa 214void AliMC::ConstructOpGeometry()
215{
216 //
217 // Loop all detector modules and call DefineOpticalProperties() method
218 //
219
220 TIter next(gAlice->Modules());
221 AliModule *detector;
222 AliInfo("Optical properties definition");
223 while((detector = dynamic_cast<AliModule*>(next()))) {
224 // Initialise detector optical properties
225 detector->DefineOpticalProperties();
226 }
227}
228
229//_______________________________________________________________________
5d12ce38 230void AliMC::InitGeometry()
231{
232 //
27cf3cdc 233 // Initialize detectors
5d12ce38 234 //
235
4a9de4af 236 AliInfo("Initialisation:");
237 TStopwatch stw;
238 TIter next(gAlice->Modules());
239 AliModule *detector;
240 while((detector = dynamic_cast<AliModule*>(next()))) {
241 stw.Start();
27cf3cdc 242 // Initialise detector geometry
4a9de4af 243 if(gAlice->IsRootGeometry()) detector->CreateMaterials();
244 detector->Init();
4a9de4af 245 AliInfo(Form("%10s R:%.2fs C:%.2fs",
246 detector->GetName(),stw.RealTime(),stw.CpuTime()));
247 }
4787b401 248}
249
250//_______________________________________________________________________
251void AliMC::SetAllAlignableVolumes()
252{
253 //
254 // Add alignable volumes (TGeoPNEntries) looping on all
255 // active modules
256 //
257
258 AliInfo(Form("Setting entries for all alignable volumes of active detectors"));
259 AliModule *detector;
260 TIter next(gAlice->Modules());
261 while((detector = dynamic_cast<AliModule*>(next()))) {
262 detector->AddAlignableVolumes();
263 }
5d12ce38 264}
265
266//_______________________________________________________________________
2057aecb 267void AliMC::GeneratePrimaries()
5d12ce38 268{
269 //
270 // Generate primary particles and fill them in the stack.
271 //
272
273 Generator()->Generate();
274}
275
276//_______________________________________________________________________
277void AliMC::SetGenerator(AliGenerator *generator)
278{
279 //
280 // Load the event generator
281 //
282 if(!fGenerator) fGenerator = generator;
283}
284
285//_______________________________________________________________________
286void AliMC::ResetGenerator(AliGenerator *generator)
287{
288 //
289 // Load the event generator
290 //
9a213abc 291 if(fGenerator) {
292 if(generator) {
21bf7095 293 AliWarning(Form("Replacing generator %s with %s",
9a213abc 294 fGenerator->GetName(),generator->GetName()));
295 }
296 else {
21bf7095 297 AliWarning(Form("Replacing generator %s with NULL",
298 fGenerator->GetName()));
9a213abc 299 }
300 }
5d12ce38 301 fGenerator = generator;
302}
303
304//_______________________________________________________________________
305void AliMC::FinishRun()
306{
307 // Clean generator information
21bf7095 308 AliDebug(1, "fGenerator->FinishRun()");
5d12ce38 309 fGenerator->FinishRun();
310
311 //Output energy summary tables
21bf7095 312 AliDebug(1, "EnergySummary()");
313 ToAliDebug(1, EnergySummary());
5d12ce38 314}
315
316//_______________________________________________________________________
317void AliMC::BeginPrimary()
318{
319 //
320 // Called at the beginning of each primary track
321 //
322
323 // Reset Hits info
324 ResetHits();
325 ResetTrackReferences();
326
327}
328
329//_______________________________________________________________________
330void AliMC::PreTrack()
331{
d0d4a6b3 332 // Actions before the track's transport
5d12ce38 333 TObjArray &dets = *gAlice->Modules();
334 AliModule *module;
335
336 for(Int_t i=0; i<=gAlice->GetNdets(); i++)
337 if((module = dynamic_cast<AliModule*>(dets[i])))
338 module->PreTrack();
339
340 fMCQA->PreTrack();
341}
342
343//_______________________________________________________________________
344void AliMC::Stepping()
345{
346 //
347 // Called at every step during transport
348 //
0561efeb 349
38ca2ad6 350 Int_t id = DetFromMate(gMC->CurrentMedium());
5d12ce38 351 if (id < 0) return;
352
0561efeb 353
354 if ( gMC->IsNewTrack() &&
355 gMC->TrackTime() == 0. &&
38ca2ad6 356 fRDecayMin >= 0. &&
0561efeb 357 fRDecayMax > fRDecayMin &&
358 gMC->TrackPid() == fDecayPdg )
359 {
360 FixParticleDecaytime();
361 }
362
363
364
5d12ce38 365 //
366 // --- If lego option, do it and leave
367 if (gAlice->Lego())
368 gAlice->Lego()->StepManager();
369 else {
370 Int_t copy;
371 //Update energy deposition tables
372 AddEnergyDeposit(gMC->CurrentVolID(copy),gMC->Edep());
ab03c084 373 //
374 // write tracke reference for track which is dissapearing - MI
b60e0f5e 375 if (gMC->IsTrackDisappeared()) {
376 if (gMC->Etot()>0.05) AddTrackReference(GetCurrentTrackNumber());
377 }
5d12ce38 378
379 //Call the appropriate stepping routine;
380 AliModule *det = dynamic_cast<AliModule*>(gAlice->Modules()->At(id));
381 if(det && det->StepManagerIsEnabled()) {
e569033b 382 if(AliLog::GetGlobalDebugLevel()>0) fMCQA->StepManager(id);
5d12ce38 383 det->StepManager();
384 }
385 }
386}
387
388//_______________________________________________________________________
389void AliMC::EnergySummary()
390{
391 //
392 // Print summary of deposited energy
393 //
394
395 Int_t ndep=0;
396 Float_t edtot=0;
397 Float_t ed, ed2;
398 Int_t kn, i, left, j, id;
399 const Float_t kzero=0;
400 Int_t ievent=gAlice->GetRunLoader()->GetHeader()->GetEvent()+1;
401 //
402 // Energy loss information
403 if(ievent) {
404 printf("***************** Energy Loss Information per event (GEV) *****************\n");
405 for(kn=1;kn<fEventEnergy.GetSize();kn++) {
406 ed=fSummEnergy[kn];
407 if(ed>0) {
408 fEventEnergy[ndep]=kn;
409 if(ievent>1) {
410 ed=ed/ievent;
411 ed2=fSum2Energy[kn];
412 ed2=ed2/ievent;
413 ed2=100*TMath::Sqrt(TMath::Max(ed2-ed*ed,kzero))/ed;
414 } else
415 ed2=99;
416 fSummEnergy[ndep]=ed;
417 fSum2Energy[ndep]=TMath::Min(static_cast<Float_t>(99.),TMath::Max(ed2,kzero));
418 edtot+=ed;
419 ndep++;
420 }
421 }
422 for(kn=0;kn<(ndep-1)/3+1;kn++) {
423 left=ndep-kn*3;
424 for(i=0;i<(3<left?3:left);i++) {
425 j=kn*3+i;
426 id=Int_t (fEventEnergy[j]+0.1);
427 printf(" %s %10.3f +- %10.3f%%;",gMC->VolName(id),fSummEnergy[j],fSum2Energy[j]);
428 }
429 printf("\n");
430 }
431 //
432 // Relative energy loss in different detectors
433 printf("******************** Relative Energy Loss per event ********************\n");
434 printf("Total energy loss per event %10.3f GeV\n",edtot);
435 for(kn=0;kn<(ndep-1)/5+1;kn++) {
436 left=ndep-kn*5;
437 for(i=0;i<(5<left?5:left);i++) {
438 j=kn*5+i;
439 id=Int_t (fEventEnergy[j]+0.1);
440 printf(" %s %10.3f%%;",gMC->VolName(id),100*fSummEnergy[j]/edtot);
441 }
442 printf("\n");
443 }
444 for(kn=0;kn<75;kn++) printf("*");
445 printf("\n");
446 }
447 //
448 // Reset the TArray's
449 // fEventEnergy.Set(0);
450 // fSummEnergy.Set(0);
451 // fSum2Energy.Set(0);
452}
453
454//_____________________________________________________________________________
455void AliMC::BeginEvent()
456{
457 //
458 // Clean-up previous event
459 // Energy scores
21bf7095 460 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
461 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
462 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
463 AliDebug(1, " BEGINNING EVENT ");
464 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
465 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
466 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
5d12ce38 467
468 AliRunLoader *runloader=gAlice->GetRunLoader();
469
470 /*******************************/
471 /* Clean after eventual */
472 /* previous event */
473 /*******************************/
474
475
476 //Set the next event in Run Loader -> Cleans trees (TreeK and all trees in detectors),
477 gAlice->SetEventNrInRun(gAlice->GetEventNrInRun()+1);
478 runloader->SetEventNumber(gAlice->GetEventNrInRun());// sets new files, cleans the previous event stuff, if necessary, etc.,
21bf7095 479 AliDebug(1, Form("EventNr is %d",gAlice->GetEventNrInRun()));
5d12ce38 480
481 fEventEnergy.Reset();
482 // Clean detector information
483
484 if (runloader->Stack())
485 runloader->Stack()->Reset();//clean stack -> tree is unloaded
486 else
487 runloader->MakeStack();//or make a new one
504b172d 488
489 if(gAlice->Lego() == 0x0)
490 {
21bf7095 491 AliDebug(1, "fRunLoader->MakeTree(K)");
504b172d 492 runloader->MakeTree("K");
493 }
494
21bf7095 495 AliDebug(1, "gMC->SetStack(fRunLoader->Stack())");
5d12ce38 496 gMC->SetStack(gAlice->GetRunLoader()->Stack());//Was in InitMC - but was moved here
497 //because we don't have guarantee that
498 //stack pointer is not going to change from event to event
499 //since it bellobgs to header and is obtained via RunLoader
500 //
501 // Reset all Detectors & kinematics & make/reset trees
502 //
503
504 runloader->GetHeader()->Reset(gAlice->GetRunNumber(),gAlice->GetEvNumber(),
505 gAlice->GetEventNrInRun());
506// fRunLoader->WriteKinematics("OVERWRITE"); is there any reason to rewrite here since MakeTree does so
507
504b172d 508 if(gAlice->Lego())
509 {
510 gAlice->Lego()->BeginEvent();
511 return;
512 }
513
5d12ce38 514
21bf7095 515 AliDebug(1, "ResetHits()");
5d12ce38 516 ResetHits();
504b172d 517
21bf7095 518 AliDebug(1, "fRunLoader->MakeTree(H)");
5d12ce38 519 runloader->MakeTree("H");
504b172d 520
21bf7095 521 AliDebug(1, "fRunLoader->MakeTrackRefsContainer()");
504b172d 522 runloader->MakeTrackRefsContainer();//for insurance
5d12ce38 523
5d12ce38 524
525 //create new branches and SetAdresses
526 TIter next(gAlice->Modules());
527 AliModule *detector;
528 while((detector = (AliModule*)next()))
529 {
21bf7095 530 AliDebug(2, Form("%s->MakeBranch(H)",detector->GetName()));
5d12ce38 531 detector->MakeBranch("H");
21bf7095 532 AliDebug(2, Form("%s->MakeBranchTR()",detector->GetName()));
5d12ce38 533 detector->MakeBranchTR();
21bf7095 534 AliDebug(2, Form("%s->SetTreeAddress()",detector->GetName()));
5d12ce38 535 detector->SetTreeAddress();
536 }
ab03c084 537 // make branch for AliRun track References
538 TTree * treeTR = runloader->TreeTR();
539 if (treeTR){
540 // make branch for central track references
541 if (!fTrackReferences) fTrackReferences = new TClonesArray("AliTrackReference",0);
542 TBranch *branch;
543 branch = treeTR->Branch("AliRun",&fTrackReferences);
544 branch->SetAddress(&fTrackReferences);
545 }
546 //
5d12ce38 547}
548
549//_______________________________________________________________________
550void AliMC::ResetHits()
551{
552 //
553 // Reset all Detectors hits
554 //
555 TIter next(gAlice->Modules());
556 AliModule *detector;
557 while((detector = dynamic_cast<AliModule*>(next()))) {
558 detector->ResetHits();
559 }
560}
561
562//_______________________________________________________________________
563void AliMC::PostTrack()
564{
d0d4a6b3 565 // Posts tracks for each module
4a9de4af 566 TObjArray &dets = *gAlice->Modules();
567 AliModule *module;
568
569 for(Int_t i=0; i<=gAlice->GetNdets(); i++)
570 if((module = dynamic_cast<AliModule*>(dets[i])))
571 module->PostTrack();
5d12ce38 572}
573
574//_______________________________________________________________________
575void AliMC::FinishPrimary()
576{
577 //
578 // Called at the end of each primary track
579 //
580 AliRunLoader *runloader=gAlice->GetRunLoader();
581 // static Int_t count=0;
582 // const Int_t times=10;
583 // This primary is finished, purify stack
c75cfb51 584#if ROOT_VERSION_CODE > 262152
942a9039 585 if (!(gMC->SecondariesAreOrdered())) {
586 runloader->Stack()->ReorderKine();
587 RemapHits();
588 }
c75cfb51 589#endif
5d12ce38 590 runloader->Stack()->PurifyKine();
942a9039 591 RemapHits();
504b172d 592
5d12ce38 593 TIter next(gAlice->Modules());
594 AliModule *detector;
595 while((detector = dynamic_cast<AliModule*>(next()))) {
596 detector->FinishPrimary();
504b172d 597 AliLoader* loader = detector->GetLoader();
598 if(loader)
599 {
600 TTree* treeH = loader->TreeH();
601 if (treeH) treeH->Fill(); //can be Lego run and treeH can not exist
602 }
5d12ce38 603 }
604
605 // Write out track references if any
606 if (runloader->TreeTR()) runloader->TreeTR()->Fill();
607}
608
942a9039 609void AliMC::RemapHits()
610{
611//
612// Remaps the track labels of the hits
613 AliRunLoader *runloader=gAlice->GetRunLoader();
614 AliStack* stack = runloader->Stack();
615 TList* hitLists = GetHitLists();
616 TIter next(hitLists);
617 TCollection *hitList;
618
619 while((hitList = dynamic_cast<TCollection*>(next()))) {
620 TIter nexthit(hitList);
621 AliHit *hit;
622 while((hit = dynamic_cast<AliHit*>(nexthit()))) {
623 hit->SetTrack(stack->TrackLabel(hit->GetTrack()));
624 }
625 }
626
627 //
628 // This for detectors which have a special mapping mechanism
629 // for hits, such as TPC and TRD
630 //
631
632 TObjArray* modules = gAlice->Modules();
633 TIter nextmod(modules);
634 AliModule *detector;
635 while((detector = dynamic_cast<AliModule*>(nextmod()))) {
636 detector->RemapTrackHitIDs(stack->TrackLabelMap());
637 detector->RemapTrackReferencesIDs(stack->TrackLabelMap());
638 }
639 //
640 RemapTrackReferencesIDs(stack->TrackLabelMap());
641}
642
5d12ce38 643//_______________________________________________________________________
644void AliMC::FinishEvent()
645{
646 //
647 // Called at the end of the event.
648 //
649
650 //
38ca2ad6 651
5d12ce38 652 if(gAlice->Lego()) gAlice->Lego()->FinishEvent();
653
654 TIter next(gAlice->Modules());
655 AliModule *detector;
656 while((detector = dynamic_cast<AliModule*>(next()))) {
657 detector->FinishEvent();
658 }
659
660 //Update the energy deposit tables
661 Int_t i;
662 for(i=0;i<fEventEnergy.GetSize();i++)
663 {
664 fSummEnergy[i]+=fEventEnergy[i];
665 fSum2Energy[i]+=fEventEnergy[i]*fEventEnergy[i];
666 }
667
668 AliRunLoader *runloader=gAlice->GetRunLoader();
669
670 AliHeader* header = runloader->GetHeader();
671 AliStack* stack = runloader->Stack();
672 if ( (header == 0x0) || (stack == 0x0) )
673 {//check if we got header and stack. If not cry and exit aliroot
21bf7095 674 AliFatal("Can not get the stack or header from LOADER");
5d12ce38 675 return;//never reached
676 }
677 // Update Header information
678 header->SetNprimary(stack->GetNprimary());
679 header->SetNtrack(stack->GetNtrack());
680
681
682 // Write out the kinematics
38ca2ad6 683 if (!gAlice->Lego()) stack->FinishEvent();
5d12ce38 684
685 // Write out the event Header information
686 TTree* treeE = runloader->TreeE();
687 if (treeE)
688 {
689 header->SetStack(stack);
690 treeE->Fill();
691 }
692 else
693 {
21bf7095 694 AliError("Can not get TreeE from RL");
5d12ce38 695 }
696
504b172d 697 if(gAlice->Lego() == 0x0)
698 {
699 runloader->WriteKinematics("OVERWRITE");
700 runloader->WriteTrackRefs("OVERWRITE");
701 runloader->WriteHits("OVERWRITE");
702 }
703
21bf7095 704 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
705 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
706 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
707 AliDebug(1, " FINISHING EVENT ");
708 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
709 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
710 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
5d12ce38 711}
712
713//_______________________________________________________________________
714void AliMC::Field(const Double_t* x, Double_t* b) const
715{
d0d4a6b3 716 // Calculates field "b" at point "x"
5d12ce38 717 gAlice->Field(x,b);
718}
719
720//_______________________________________________________________________
721void AliMC::Init()
722{
d0d4a6b3 723 // MC initialization
5d12ce38 724
725 //=================Create Materials and geometry
726 gMC->Init();
4e889ff4 727 // Set alignable volumes for the whole geometry (with old root)
728#if ROOT_VERSION_CODE < 331527
729 SetAllAlignableVolumes();
730#endif
5d12ce38 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
5d12ce38 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 //
745 fMCQA = new AliMCQA(gAlice->GetNdets());
746
747 // Register MC in configuration
748 AliConfig::Instance()->Add(gMC);
749
750}
751
752//_______________________________________________________________________
753void AliMC::MediaTable()
754{
755 //
756 // Built media table to get from the media number to
757 // the detector id
758 //
759
760 Int_t kz, nz, idt, lz, i, k, ind;
761 // Int_t ibeg;
762 TObjArray &dets = *gAlice->Detectors();
763 AliModule *det;
764 Int_t ndets=gAlice->GetNdets();
765 //
766 // For all detectors
767 for (kz=0;kz<ndets;kz++) {
768 // If detector is defined
769 if((det=dynamic_cast<AliModule*>(dets[kz]))) {
770 TArrayI &idtmed = *(det->GetIdtmed());
771 for(nz=0;nz<100;nz++) {
0561efeb 772
5d12ce38 773 // Find max and min material number
774 if((idt=idtmed[nz])) {
775 det->LoMedium() = det->LoMedium() < idt ? det->LoMedium() : idt;
776 det->HiMedium() = det->HiMedium() > idt ? det->HiMedium() : idt;
777 }
778 }
779 if(det->LoMedium() > det->HiMedium()) {
780 det->LoMedium() = 0;
781 det->HiMedium() = 0;
782 } else {
783 if(det->HiMedium() > fImedia->GetSize()) {
21bf7095 784 AliError(Form("Increase fImedia from %d to %d",
785 fImedia->GetSize(),det->HiMedium()));
5d12ce38 786 return;
787 }
788 // Tag all materials in rage as belonging to detector kz
789 for(lz=det->LoMedium(); lz<= det->HiMedium(); lz++) {
790 (*fImedia)[lz]=kz;
791 }
792 }
793 }
794 }
795 //
796 // Print summary table
21bf7095 797 AliInfo("Tracking media ranges:");
798 ToAliInfo(
5d12ce38 799 for(i=0;i<(ndets-1)/6+1;i++) {
800 for(k=0;k< (6<ndets-i*6?6:ndets-i*6);k++) {
801 ind=i*6+k;
802 det=dynamic_cast<AliModule*>(dets[ind]);
803 if(det)
804 printf(" %6s: %3d -> %3d;",det->GetName(),det->LoMedium(),
805 det->HiMedium());
806 else
807 printf(" %6s: %3d -> %3d;","NULL",0,0);
808 }
809 printf("\n");
810 }
21bf7095 811 )
5d12ce38 812}
813
814//_______________________________________________________________________
815void AliMC::ReadTransPar()
816{
817 //
818 // Read filename to set the transport parameters
819 //
820
821
822 const Int_t kncuts=10;
823 const Int_t knflags=11;
824 const Int_t knpars=kncuts+knflags;
825 const char kpars[knpars][7] = {"CUTGAM" ,"CUTELE","CUTNEU","CUTHAD","CUTMUO",
826 "BCUTE","BCUTM","DCUTE","DCUTM","PPCUTM","ANNI",
827 "BREM","COMP","DCAY","DRAY","HADR","LOSS",
828 "MULS","PAIR","PHOT","RAYL"};
829 char line[256];
830 char detName[7];
831 char* filtmp;
832 Float_t cut[kncuts];
833 Int_t flag[knflags];
834 Int_t i, itmed, iret, ktmed, kz;
835 FILE *lun;
836 //
837 // See whether the file is there
838 filtmp=gSystem->ExpandPathName(fTransParName.Data());
839 lun=fopen(filtmp,"r");
840 delete [] filtmp;
841 if(!lun) {
21bf7095 842 AliWarning(Form("File %s does not exist!",fTransParName.Data()));
5d12ce38 843 return;
844 }
845 //
5d12ce38 846 while(1) {
847 // Initialise cuts and flags
848 for(i=0;i<kncuts;i++) cut[i]=-99;
849 for(i=0;i<knflags;i++) flag[i]=-99;
850 itmed=0;
851 for(i=0;i<256;i++) line[i]='\0';
852 // Read up to the end of line excluded
853 iret=fscanf(lun,"%[^\n]",line);
854 if(iret<0) {
855 //End of file
856 fclose(lun);
5d12ce38 857 return;
858 }
859 // Read the end of line
860 fscanf(lun,"%*c");
861 if(!iret) continue;
862 if(line[0]=='*') continue;
863 // Read the numbers
864 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",
865 detName,&itmed,&cut[0],&cut[1],&cut[2],&cut[3],&cut[4],&cut[5],&cut[6],&cut[7],&cut[8],
866 &cut[9],&flag[0],&flag[1],&flag[2],&flag[3],&flag[4],&flag[5],&flag[6],&flag[7],
867 &flag[8],&flag[9],&flag[10]);
868 if(!iret) continue;
869 if(iret<0) {
870 //reading error
21bf7095 871 AliWarning(Form("Error reading file %s",fTransParName.Data()));
5d12ce38 872 continue;
873 }
874 // Check that the module exist
875 AliModule *mod = gAlice->GetModule(detName);
876 if(mod) {
877 // Get the array of media numbers
878 TArrayI &idtmed = *mod->GetIdtmed();
879 // Check that the tracking medium code is valid
880 if(0<=itmed && itmed < 100) {
881 ktmed=idtmed[itmed];
882 if(!ktmed) {
21bf7095 883 AliWarning(Form("Invalid tracking medium code %d for %s",itmed,mod->GetName()));
5d12ce38 884 continue;
885 }
886 // Set energy thresholds
887 for(kz=0;kz<kncuts;kz++) {
888 if(cut[kz]>=0) {
21bf7095 889 AliDebug(2, Form("%-6s set to %10.3E for tracking medium code %4d for %s",
890 kpars[kz],cut[kz],itmed,mod->GetName()));
5d12ce38 891 gMC->Gstpar(ktmed,kpars[kz],cut[kz]);
892 }
893 }
894 // Set transport mechanisms
895 for(kz=0;kz<knflags;kz++) {
896 if(flag[kz]>=0) {
21bf7095 897 AliDebug(2, Form("%-6s set to %10d for tracking medium code %4d for %s",
898 kpars[kncuts+kz],flag[kz],itmed,mod->GetName()));
5d12ce38 899 gMC->Gstpar(ktmed,kpars[kncuts+kz],Float_t(flag[kz]));
900 }
901 }
902 } else {
21bf7095 903 AliWarning(Form("Invalid medium code %d",itmed));
5d12ce38 904 continue;
905 }
906 } else {
21bf7095 907 AliDebug(1, Form("%s not present",detName));
5d12ce38 908 continue;
909 }
910 }
911}
912
913//_______________________________________________________________________
914void AliMC::SetTransPar(const char *filename)
915{
916 //
917 // Sets the file name for transport parameters
918 //
919 fTransParName = filename;
920}
921
922//_______________________________________________________________________
0054628d 923void AliMC::Browse(TBrowser *b)
5d12ce38 924{
925 //
926 // Called when the item "Run" is clicked on the left pane
927 // of the Root browser.
928 // It displays the Root Trees and all detectors.
929 //
930 //detectors are in folders anyway
931 b->Add(fMCQA,"AliMCQA");
932}
933
5d12ce38 934//_______________________________________________________________________
935void AliMC::AddHit(Int_t id, Int_t track, Int_t *vol, Float_t *hits) const
936{
937 //
938 // Add a hit to detector id
939 //
940 TObjArray &dets = *gAlice->Modules();
941 if(dets[id]) dynamic_cast<AliModule*>(dets[id])->AddHit(track,vol,hits);
942}
943
944//_______________________________________________________________________
945void AliMC::AddDigit(Int_t id, Int_t *tracks, Int_t *digits) const
946{
947 //
948 // Add digit to detector id
949 //
950 TObjArray &dets = *gAlice->Modules();
951 if(dets[id]) dynamic_cast<AliModule*>(dets[id])->AddDigit(tracks,digits);
952}
953
954//_______________________________________________________________________
955Int_t AliMC::GetCurrentTrackNumber() const {
956 //
957 // Returns current track
958 //
959 return gAlice->GetRunLoader()->Stack()->GetCurrentTrackNumber();
960}
961
962//_______________________________________________________________________
963void AliMC::DumpPart (Int_t i) const
964{
965 //
966 // Dumps particle i in the stack
967 //
968 AliRunLoader * runloader = gAlice->GetRunLoader();
969 if (runloader->Stack())
970 runloader->Stack()->DumpPart(i);
971}
972
973//_______________________________________________________________________
974void AliMC::DumpPStack () const
975{
976 //
977 // Dumps the particle stack
978 //
979 AliRunLoader * runloader = gAlice->GetRunLoader();
980 if (runloader->Stack())
981 runloader->Stack()->DumpPStack();
982}
983
984//_______________________________________________________________________
985Int_t AliMC::GetNtrack() const {
986 //
987 // Returns number of tracks in stack
988 //
989 Int_t ntracks = -1;
990 AliRunLoader * runloader = gAlice->GetRunLoader();
991 if (runloader->Stack())
992 ntracks = runloader->Stack()->GetNtrack();
993 return ntracks;
994}
995
996//_______________________________________________________________________
997Int_t AliMC::GetPrimary(Int_t track) const
998{
999 //
1000 // return number of primary that has generated track
1001 //
1002 Int_t nprimary = -999;
1003 AliRunLoader * runloader = gAlice->GetRunLoader();
1004 if (runloader->Stack())
1005 nprimary = runloader->Stack()->GetPrimary(track);
1006 return nprimary;
1007}
1008
1009//_______________________________________________________________________
1010TParticle* AliMC::Particle(Int_t i) const
1011{
d0d4a6b3 1012 // Returns the i-th particle from the stack taking into account
1013 // the remaping done by PurifyKine
5d12ce38 1014 AliRunLoader * runloader = gAlice->GetRunLoader();
1015 if (runloader)
1016 if (runloader->Stack())
1017 return runloader->Stack()->Particle(i);
1018 return 0x0;
1019}
1020
1021//_______________________________________________________________________
1022TObjArray* AliMC::Particles() const {
1023 //
1024 // Returns pointer to Particles array
1025 //
1026 AliRunLoader * runloader = gAlice->GetRunLoader();
1027 if (runloader)
1028 if (runloader->Stack())
1029 return runloader->Stack()->Particles();
1030 return 0x0;
1031}
1032
1033//_______________________________________________________________________
1034void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom,
1035 Float_t *vpos, Float_t *polar, Float_t tof,
2057aecb 1036 TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const
5d12ce38 1037{
1038// Delegate to stack
1039//
1040 AliRunLoader * runloader = gAlice->GetRunLoader();
1041 if (runloader)
1042 if (runloader->Stack())
1043 runloader->Stack()->PushTrack(done, parent, pdg, pmom, vpos, polar, tof,
1044 mech, ntr, weight, is);
1045}
1046
1047//_______________________________________________________________________
1048void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg,
1049 Double_t px, Double_t py, Double_t pz, Double_t e,
1050 Double_t vx, Double_t vy, Double_t vz, Double_t tof,
1051 Double_t polx, Double_t poly, Double_t polz,
2057aecb 1052 TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const
5d12ce38 1053{
1054 // Delegate to stack
1055 //
1056 AliRunLoader * runloader = gAlice->GetRunLoader();
1057 if (runloader)
1058 if (runloader->Stack())
1059 runloader->Stack()->PushTrack(done, parent, pdg, px, py, pz, e, vx, vy, vz, tof,
1060 polx, poly, polz, mech, ntr, weight, is);
1061}
1062
1063//_______________________________________________________________________
2057aecb 1064void AliMC::SetHighWaterMark(Int_t nt) const
5d12ce38 1065{
1066 //
1067 // Set high water mark for last track in event
1068 AliRunLoader * runloader = gAlice->GetRunLoader();
1069 if (runloader)
1070 if (runloader->Stack())
1071 runloader->Stack()->SetHighWaterMark(nt);
1072}
1073
1074//_______________________________________________________________________
2057aecb 1075void AliMC::KeepTrack(Int_t track) const
5d12ce38 1076{
1077 //
1078 // Delegate to stack
1079 //
1080 AliRunLoader * runloader = gAlice->GetRunLoader();
1081 if (runloader)
1082 if (runloader->Stack())
1083 runloader->Stack()->KeepTrack(track);
1084}
1085
1086//_______________________________________________________________________
2057aecb 1087void AliMC::FlagTrack(Int_t track) const
5d12ce38 1088{
1089 // Delegate to stack
1090 //
1091 AliRunLoader * runloader = gAlice->GetRunLoader();
1092 if (runloader)
1093 if (runloader->Stack())
1094 runloader->Stack()->FlagTrack(track);
1095}
1096
1097//_______________________________________________________________________
2057aecb 1098void AliMC::SetCurrentTrack(Int_t track) const
5d12ce38 1099{
1100 //
1101 // Set current track number
1102 //
1103 AliRunLoader * runloader = gAlice->GetRunLoader();
1104 if (runloader)
1105 if (runloader->Stack())
1106 runloader->Stack()->SetCurrentTrack(track);
1107}
1108
1109//_______________________________________________________________________
1110void AliMC::AddTrackReference(Int_t label){
1111 //
1112 // add a trackrefernce to the list
1113 if (!fTrackReferences) {
21bf7095 1114 AliError("Container trackrefernce not active");
5d12ce38 1115 return;
1116 }
1117 Int_t nref = fTrackReferences->GetEntriesFast();
1118 TClonesArray &lref = *fTrackReferences;
1119 new(lref[nref]) AliTrackReference(label);
1120}
1121
1122
1123
1124//_______________________________________________________________________
1125void AliMC::ResetTrackReferences()
1126{
1127 //
1128 // Reset all references
1129 //
1130 if (fTrackReferences) fTrackReferences->Clear();
1131
1132 TIter next(gAlice->Modules());
1133 AliModule *detector;
1134 while((detector = dynamic_cast<AliModule*>(next()))) {
1135 detector->ResetTrackReferences();
1136 }
1137}
1138
1139void AliMC::RemapTrackReferencesIDs(Int_t *map)
1140{
1141 //
1142 // Remapping track reference
1143 // Called at finish primary
1144 //
1145 if (!fTrackReferences) return;
4e490a96 1146 Int_t nEntries = fTrackReferences->GetEntries();
1147 for (Int_t i=0; i < nEntries; i++){
1148 AliTrackReference * ref = dynamic_cast<AliTrackReference*>(fTrackReferences->UncheckedAt(i));
1149 if (ref) {
1150 Int_t newID = map[ref->GetTrack()];
1151 if (newID>=0) ref->SetTrack(newID);
1152 else {
1153 ref->SetBit(kNotDeleted,kFALSE);
1154 fTrackReferences->RemoveAt(i);
1155 }
1156 } // if ref
5d12ce38 1157 }
1158 fTrackReferences->Compress();
1159}
0561efeb 1160
1161void AliMC::FixParticleDecaytime()
1162{
1163 //
1164 // Fix the particle decay time according to rmin and rmax for decays
1165 //
1166
1167 TLorentzVector p;
1168 gMC->TrackMomentum(p);
1169 Double_t tmin, tmax;
1170 Double_t b;
1171
1172 // Transverse velocity
1173 Double_t vt = p.Pt() / p.E();
1174
1175 if ((b = gAlice->Field()->SolenoidField()) > 0.) { // [kG]
1176
1177 // Radius of helix
1178
1179 Double_t rho = p.Pt() / 0.0003 / b; // [cm]
1180
1181 // Revolution frequency
1182
1183 Double_t omega = vt / rho;
1184
1185 // Maximum and minimum decay time
1186 //
1187 // Check for curlers first
1188 if (fRDecayMax * fRDecayMax / rho / rho / 2. > 1.) return;
1189
1190 //
1191
1192 tmax = TMath::ACos(1. - fRDecayMax * fRDecayMax / rho / rho / 2.) / omega; // [ct]
1193 tmin = TMath::ACos(1. - fRDecayMin * fRDecayMin / rho / rho / 2.) / omega; // [ct]
1194 } else {
1195 tmax = fRDecayMax / vt; // [ct]
1196 tmin = fRDecayMin / vt; // [ct]
1197 }
1198
1199 //
1200 // Dial t using the two limits
1201 Double_t t = tmin + (tmax - tmin) * gRandom->Rndm(); // [ct]
1202 //
1203 //
1204 // Force decay time in transport code
1205 //
fa7ca4da 1206 gMC->ForceDecayTime(t / 2.99792458e10);
0561efeb 1207}