Modifications in AliRoot for re-processing a selected event.
[u/mrichter/AliRoot.git] / STEER / 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
01a0f5d0 24#include <string.h>
25
c75cfb51 26#include <RVersion.h>
3e2e3ece 27#include <TArrayI.h>
7ca4655f 28#include <TClonesArray.h>
3e2e3ece 29#include <TFile.h>
f7a1cc68 30#include <TGeoGlobalMagField.h>
7ca4655f 31#include <TGeoManager.h>
3e2e3ece 32#include <TParticle.h>
33#include <TROOT.h>
5d12ce38 34#include <TStopwatch.h>
35#include <TSystem.h>
36#include <TVirtualMC.h>
c93255fe 37#include <TTree.h>
b60e0f5e 38
3e2e3ece 39#include "AliCDBEntry.h"
40#include "AliCDBManager.h"
41#include "AliCDBStorage.h"
5d12ce38 42#include "AliDetector.h"
43#include "AliGenerator.h"
3e2e3ece 44#include "AliGeomManager.h"
5d12ce38 45#include "AliHeader.h"
3e2e3ece 46#include "AliHit.h"
5d12ce38 47#include "AliLego.h"
3e2e3ece 48#include "AliLog.h"
5d12ce38 49#include "AliMC.h"
3e2e3ece 50#include "AliMagF.h"
5d12ce38 51#include "AliRun.h"
3e2e3ece 52#include "AliSimulation.h"
5d12ce38 53#include "AliStack.h"
54#include "AliTrackReference.h"
5d12ce38 55
56ClassImp(AliMC)
57
58//_______________________________________________________________________
59AliMC::AliMC() :
60 fGenerator(0),
9d188d33 61 fSaveRndmStatus(kFALSE),
62 fSaveRndmEventStatus(kFALSE),
63 fReadRndmStatus(kFALSE),
64 fRndmFileName("random.root"),
5d12ce38 65 fEventEnergy(0),
66 fSummEnergy(0),
67 fSum2Energy(0),
68 fTrRmax(1.e10),
69 fTrZmax(1.e10),
90e48c0c 70 fRDecayMax(1.e10),
38ca2ad6 71 fRDecayMin(-1.),
90e48c0c 72 fDecayPdg(0),
5d12ce38 73 fImedia(0),
74 fTransParName("\0"),
5d12ce38 75 fHitLists(0),
3cac0921 76 fTmpTreeTR(0),
77 fTmpFileTR(0),
fd650020 78 fTrackReferences(),
79 fTmpTrackReferences()
5d12ce38 80
81{
d0d4a6b3 82 //default constructor
0561efeb 83 DecayLimits();
5d12ce38 84}
85
86//_______________________________________________________________________
87AliMC::AliMC(const char *name, const char *title) :
88 TVirtualMCApplication(name, title),
89 fGenerator(0),
9d188d33 90 fSaveRndmStatus(kFALSE),
91 fSaveRndmEventStatus(kFALSE),
92 fReadRndmStatus(kFALSE),
93 fRndmFileName("random.root"),
5d12ce38 94 fEventEnergy(0),
95 fSummEnergy(0),
96 fSum2Energy(0),
97 fTrRmax(1.e10),
98 fTrZmax(1.e10),
90e48c0c 99 fRDecayMax(1.e10),
38ca2ad6 100 fRDecayMin(-1.),
90e48c0c 101 fDecayPdg(0),
5d12ce38 102 fImedia(new TArrayI(1000)),
103 fTransParName("\0"),
5d12ce38 104 fHitLists(new TList()),
3cac0921 105 fTmpTreeTR(0),
106 fTmpFileTR(0),
fd650020 107 fTrackReferences("AliTrackReference", 100),
108 fTmpTrackReferences("AliTrackReference", 100)
5d12ce38 109{
d0d4a6b3 110 //constructor
5d12ce38 111 // Set transport parameters
112 SetTransPar();
0561efeb 113 DecayLimits();
5d12ce38 114 // Prepare the tracking medium lists
115 for(Int_t i=0;i<1000;i++) (*fImedia)[i]=-99;
5d12ce38 116}
117
118//_______________________________________________________________________
5d12ce38 119AliMC::~AliMC()
120{
d0d4a6b3 121 //destructor
5d12ce38 122 delete fGenerator;
123 delete fImedia;
5d12ce38 124 delete fHitLists;
125 // Delete track references
5d12ce38 126}
127
128//_______________________________________________________________________
5d12ce38 129void AliMC::ConstructGeometry()
130{
131 //
4a9de4af 132 // Either load geometry from file or create it through usual
133 // loop on detectors. In the first case the method
134 // AliModule::CreateMaterials() only builds fIdtmed and is postponed
135 // at InitGeometry().
5d12ce38 136 //
137
d97f1dbe 138 if(AliSimulation::Instance()->IsGeometryFromFile()){ //load geometry either from CDB or from file
139 if(IsGeometryFromCDB()){
ced249e6 140 AliInfo("Loading geometry from CDB default storage");
141 AliCDBPath path("GRP","Geometry","Data");
142 AliCDBEntry *entry=AliCDBManager::Instance()->Get(path.GetPath());
143 if(!entry) AliFatal("Unable to load geometry from CDB!");
144 entry->SetOwner(0);
145 gGeoManager = (TGeoManager*) entry->GetObject();
146 if (!gGeoManager) AliFatal("TGeoManager object not found in the specified CDB entry!");
4a9de4af 147 }else{
ced249e6 148 // Load geometry
d97f1dbe 149 const char *geomfilename = AliSimulation::Instance()->GetGeometryFile();
ced249e6 150 if(gSystem->ExpandPathName(geomfilename)){
151 AliInfo(Form("Loading geometry from file:\n %40s",geomfilename));
152 TGeoManager::Import(geomfilename);
153 }else{
154 AliInfo(Form("Geometry file %40s not found!\n",geomfilename));
155 return;
156 }
4a9de4af 157 }
f82dfc3c 158 gMC->SetRootGeometry();
4a9de4af 159 }else{
160 // Create modules, materials, geometry
e8bfa5e3 161 if (!gGeoManager) new TGeoManager("ALICE", "ALICE geometry");
5d12ce38 162 TStopwatch stw;
163 TIter next(gAlice->Modules());
164 AliModule *detector;
21bf7095 165 AliDebug(1, "Geometry creation:");
5d12ce38 166 while((detector = dynamic_cast<AliModule*>(next()))) {
167 stw.Start();
168 // Initialise detector materials and geometry
169 detector->CreateMaterials();
170 detector->CreateGeometry();
21bf7095 171 AliInfo(Form("%10s R:%.2fs C:%.2fs",
172 detector->GetName(),stw.RealTime(),stw.CpuTime()));
5d12ce38 173 }
4a9de4af 174 }
175
5d12ce38 176}
177
178//_______________________________________________________________________
39b3f8ba 179Bool_t AliMC::MisalignGeometry()
180{
d97f1dbe 181 // Call misalignment code if AliSimulation object was defined.
182
183 if(!AliSimulation::Instance()->IsGeometryFromFile()){
184 //Set alignable volumes for the whole geometry
185 SetAllAlignableVolumes();
186 }
187 // Misalign geometry via AliSimulation instance
188 if (!AliSimulation::Instance()) return kFALSE;
189 AliGeomManager::SetGeometry(gGeoManager);
190 if(!AliGeomManager::CheckSymNamesLUT("ALL"))
0bf7aade 191 AliFatal("Current loaded geometry differs in the definition of symbolic names!");
d97f1dbe 192
193 return AliSimulation::Instance()->MisalignGeometry(AliRunLoader::Instance());
39b3f8ba 194}
195
196//_______________________________________________________________________
661663fa 197void AliMC::ConstructOpGeometry()
198{
199 //
200 // Loop all detector modules and call DefineOpticalProperties() method
201 //
202
203 TIter next(gAlice->Modules());
204 AliModule *detector;
205 AliInfo("Optical properties definition");
206 while((detector = dynamic_cast<AliModule*>(next()))) {
dde0a601 207 // Initialise detector geometry
d97f1dbe 208 if(AliSimulation::Instance()->IsGeometryFromFile()) detector->CreateMaterials();
661663fa 209 // Initialise detector optical properties
210 detector->DefineOpticalProperties();
211 }
212}
213
214//_______________________________________________________________________
5d12ce38 215void AliMC::InitGeometry()
216{
217 //
27cf3cdc 218 // Initialize detectors
5d12ce38 219 //
220
4a9de4af 221 AliInfo("Initialisation:");
222 TStopwatch stw;
223 TIter next(gAlice->Modules());
224 AliModule *detector;
225 while((detector = dynamic_cast<AliModule*>(next()))) {
226 stw.Start();
4a9de4af 227 detector->Init();
4a9de4af 228 AliInfo(Form("%10s R:%.2fs C:%.2fs",
229 detector->GetName(),stw.RealTime(),stw.CpuTime()));
230 }
4787b401 231}
232
233//_______________________________________________________________________
d97f1dbe 234void AliMC::SetGeometryFromCDB()
235{
236 // Set the loading of geometry from cdb instead of creating it
237 // A default CDB storage needs to be set before this method is called
238 if(AliCDBManager::Instance()->IsDefaultStorageSet() &&
239 AliCDBManager::Instance()->GetRun() >= 0)
240 AliSimulation::Instance()->SetGeometryFile("*OCDB*");
241 else
242 AliError("Loading of geometry from CDB ignored. First set a default CDB storage!");
243}
244
245//_______________________________________________________________________
246Bool_t AliMC::IsGeometryFromCDB() const
247{
248 return (strcmp(AliSimulation::Instance()->GetGeometryFile(),"*OCDB*")==0);
249}
250
251//_______________________________________________________________________
4787b401 252void AliMC::SetAllAlignableVolumes()
253{
254 //
255 // Add alignable volumes (TGeoPNEntries) looping on all
256 // active modules
257 //
258
259 AliInfo(Form("Setting entries for all alignable volumes of active detectors"));
260 AliModule *detector;
261 TIter next(gAlice->Modules());
262 while((detector = dynamic_cast<AliModule*>(next()))) {
263 detector->AddAlignableVolumes();
264 }
5d12ce38 265}
266
267//_______________________________________________________________________
2057aecb 268void AliMC::GeneratePrimaries()
5d12ce38 269{
270 //
271 // Generate primary particles and fill them in the stack.
272 //
273
274 Generator()->Generate();
275}
276
277//_______________________________________________________________________
278void AliMC::SetGenerator(AliGenerator *generator)
279{
280 //
281 // Load the event generator
282 //
283 if(!fGenerator) fGenerator = generator;
284}
285
286//_______________________________________________________________________
287void AliMC::ResetGenerator(AliGenerator *generator)
288{
289 //
290 // Load the event generator
291 //
9a213abc 292 if(fGenerator) {
293 if(generator) {
21bf7095 294 AliWarning(Form("Replacing generator %s with %s",
9a213abc 295 fGenerator->GetName(),generator->GetName()));
296 }
297 else {
21bf7095 298 AliWarning(Form("Replacing generator %s with NULL",
299 fGenerator->GetName()));
9a213abc 300 }
301 }
5d12ce38 302 fGenerator = generator;
303}
304
305//_______________________________________________________________________
306void AliMC::FinishRun()
307{
308 // Clean generator information
21bf7095 309 AliDebug(1, "fGenerator->FinishRun()");
5d12ce38 310 fGenerator->FinishRun();
311
312 //Output energy summary tables
21bf7095 313 AliDebug(1, "EnergySummary()");
314 ToAliDebug(1, EnergySummary());
5d12ce38 315}
316
317//_______________________________________________________________________
318void AliMC::BeginPrimary()
319{
320 //
321 // Called at the beginning of each primary track
322 //
323
324 // Reset Hits info
325 ResetHits();
326 ResetTrackReferences();
5d12ce38 327}
328
329//_______________________________________________________________________
330void AliMC::PreTrack()
331{
d0d4a6b3 332 // Actions before the track's transport
dde0a601 333
5d12ce38 334 TObjArray &dets = *gAlice->Modules();
335 AliModule *module;
336
337 for(Int_t i=0; i<=gAlice->GetNdets(); i++)
338 if((module = dynamic_cast<AliModule*>(dets[i])))
339 module->PreTrack();
5d12ce38 340}
341
342//_______________________________________________________________________
343void AliMC::Stepping()
344{
345 //
346 // Called at every step during transport
347 //
38ca2ad6 348 Int_t id = DetFromMate(gMC->CurrentMedium());
5d12ce38 349 if (id < 0) return;
350
0561efeb 351
352 if ( gMC->IsNewTrack() &&
353 gMC->TrackTime() == 0. &&
38ca2ad6 354 fRDecayMin >= 0. &&
0561efeb 355 fRDecayMax > fRDecayMin &&
356 gMC->TrackPid() == fDecayPdg )
357 {
358 FixParticleDecaytime();
359 }
360
361
362
5d12ce38 363 //
364 // --- If lego option, do it and leave
3e2e3ece 365 if (AliSimulation::Instance()->Lego())
366 AliSimulation::Instance()->Lego()->StepManager();
5d12ce38 367 else {
368 Int_t copy;
369 //Update energy deposition tables
370 AddEnergyDeposit(gMC->CurrentVolID(copy),gMC->Edep());
ab03c084 371 //
372 // write tracke reference for track which is dissapearing - MI
faad98df 373
374 if (gMC->IsTrackDisappeared() && !(gMC->IsTrackAlive())) {
375 if (gMC->Etot() > 0.05) AddTrackReference(GetCurrentTrackNumber(),
9ac3aec9 376 AliTrackReference::kDisappeared);
faad98df 377
378
b60e0f5e 379 }
faad98df 380
5d12ce38 381 //Call the appropriate stepping routine;
382 AliModule *det = dynamic_cast<AliModule*>(gAlice->Modules()->At(id));
383 if(det && det->StepManagerIsEnabled()) {
5d12ce38 384 det->StepManager();
385 }
386 }
387}
388
389//_______________________________________________________________________
390void AliMC::EnergySummary()
391{
9ac3aec9 392 //e
5d12ce38 393 // Print summary of deposited energy
394 //
395
396 Int_t ndep=0;
397 Float_t edtot=0;
398 Float_t ed, ed2;
399 Int_t kn, i, left, j, id;
400 const Float_t kzero=0;
33c3c91a 401 Int_t ievent=AliRunLoader::Instance()->GetHeader()->GetEvent()+1;
5d12ce38 402 //
403 // Energy loss information
404 if(ievent) {
405 printf("***************** Energy Loss Information per event (GEV) *****************\n");
406 for(kn=1;kn<fEventEnergy.GetSize();kn++) {
407 ed=fSummEnergy[kn];
408 if(ed>0) {
409 fEventEnergy[ndep]=kn;
410 if(ievent>1) {
411 ed=ed/ievent;
412 ed2=fSum2Energy[kn];
413 ed2=ed2/ievent;
414 ed2=100*TMath::Sqrt(TMath::Max(ed2-ed*ed,kzero))/ed;
415 } else
416 ed2=99;
417 fSummEnergy[ndep]=ed;
418 fSum2Energy[ndep]=TMath::Min(static_cast<Float_t>(99.),TMath::Max(ed2,kzero));
419 edtot+=ed;
420 ndep++;
421 }
422 }
423 for(kn=0;kn<(ndep-1)/3+1;kn++) {
424 left=ndep-kn*3;
425 for(i=0;i<(3<left?3:left);i++) {
426 j=kn*3+i;
427 id=Int_t (fEventEnergy[j]+0.1);
428 printf(" %s %10.3f +- %10.3f%%;",gMC->VolName(id),fSummEnergy[j],fSum2Energy[j]);
429 }
430 printf("\n");
431 }
432 //
433 // Relative energy loss in different detectors
434 printf("******************** Relative Energy Loss per event ********************\n");
435 printf("Total energy loss per event %10.3f GeV\n",edtot);
436 for(kn=0;kn<(ndep-1)/5+1;kn++) {
437 left=ndep-kn*5;
438 for(i=0;i<(5<left?5:left);i++) {
439 j=kn*5+i;
440 id=Int_t (fEventEnergy[j]+0.1);
441 printf(" %s %10.3f%%;",gMC->VolName(id),100*fSummEnergy[j]/edtot);
442 }
443 printf("\n");
444 }
445 for(kn=0;kn<75;kn++) printf("*");
446 printf("\n");
447 }
448 //
449 // Reset the TArray's
450 // fEventEnergy.Set(0);
451 // fSummEnergy.Set(0);
452 // fSum2Energy.Set(0);
453}
9d188d33 454#include <TFile.h>
5d12ce38 455//_____________________________________________________________________________
456void AliMC::BeginEvent()
457{
458 //
459 // Clean-up previous event
460 // Energy scores
21bf7095 461 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
462 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
463 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
464 AliDebug(1, " BEGINNING EVENT ");
465 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
466 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
467 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
9d188d33 468
33c3c91a 469 AliRunLoader *runloader=AliRunLoader::Instance();
5d12ce38 470
471 /*******************************/
472 /* Clean after eventual */
473 /* previous event */
474 /*******************************/
475
476
477 //Set the next event in Run Loader -> Cleans trees (TreeK and all trees in detectors),
478 gAlice->SetEventNrInRun(gAlice->GetEventNrInRun()+1);
479 runloader->SetEventNumber(gAlice->GetEventNrInRun());// sets new files, cleans the previous event stuff, if necessary, etc.,
21bf7095 480 AliDebug(1, Form("EventNr is %d",gAlice->GetEventNrInRun()));
5d12ce38 481
482 fEventEnergy.Reset();
483 // Clean detector information
484
485 if (runloader->Stack())
3cac0921 486 runloader->Stack()->Reset();//clean stack -> tree is unloaded
5d12ce38 487 else
3cac0921 488 runloader->MakeStack();//or make a new one
504b172d 489
9d188d33 490 // Random engine status
491 //
9ac3aec9 492
9d188d33 493 if ( fSaveRndmStatus || fSaveRndmEventStatus) {
494 TString fileName="random";
495 if ( fSaveRndmEventStatus ) {
496 fileName += "Evt";
497 fileName += gAlice->GetEventNrInRun();
498 }
499 fileName += ".root";
500
501 // write ROOT random engine status
502 cout << "Saving random engine status in " << fileName.Data() << endl;
503 TFile f(fileName.Data(),"RECREATE");
504 gRandom->Write(fileName.Data());
505 }
506
507 if ( fReadRndmStatus ) {
508 //read ROOT random engine status
509 cout << "Reading random engine status from " << fRndmFileName.Data() << endl;
510 TFile f(fRndmFileName.Data());
511 gRandom->Read(fRndmFileName.Data());
512 }
513
3e2e3ece 514 if(AliSimulation::Instance()->Lego() == 0x0)
3cac0921 515 {
516 AliDebug(1, "fRunLoader->MakeTree(K)");
517 runloader->MakeTree("K");
518 }
519
21bf7095 520 AliDebug(1, "gMC->SetStack(fRunLoader->Stack())");
d3b3a3b2 521 gMC->SetStack(runloader->Stack());//Was in InitMC - but was moved here
5d12ce38 522 //because we don't have guarantee that
523 //stack pointer is not going to change from event to event
524 //since it bellobgs to header and is obtained via RunLoader
525 //
526 // Reset all Detectors & kinematics & make/reset trees
527 //
528
8c8fbdcd 529 runloader->GetHeader()->Reset(AliCDBManager::Instance()->GetRun(),gAlice->GetEvNumber(),
3cac0921 530 gAlice->GetEventNrInRun());
5d12ce38 531// fRunLoader->WriteKinematics("OVERWRITE"); is there any reason to rewrite here since MakeTree does so
532
3e2e3ece 533 if(AliSimulation::Instance()->Lego())
3cac0921 534 {
3e2e3ece 535 AliSimulation::Instance()->Lego()->BeginEvent();
3cac0921 536 return;
537 }
504b172d 538
5d12ce38 539
21bf7095 540 AliDebug(1, "ResetHits()");
5d12ce38 541 ResetHits();
504b172d 542
21bf7095 543 AliDebug(1, "fRunLoader->MakeTree(H)");
5d12ce38 544 runloader->MakeTree("H");
504b172d 545
5d12ce38 546
5d12ce38 547
3cac0921 548 MakeTmpTrackRefsTree();
5d12ce38 549 //create new branches and SetAdresses
550 TIter next(gAlice->Modules());
551 AliModule *detector;
552 while((detector = (AliModule*)next()))
553 {
3cac0921 554 AliDebug(2, Form("%s->MakeBranch(H)",detector->GetName()));
555 detector->MakeBranch("H");
5d12ce38 556 }
557}
558
559//_______________________________________________________________________
560void AliMC::ResetHits()
561{
562 //
563 // Reset all Detectors hits
564 //
565 TIter next(gAlice->Modules());
566 AliModule *detector;
567 while((detector = dynamic_cast<AliModule*>(next()))) {
568 detector->ResetHits();
569 }
570}
571
572//_______________________________________________________________________
3e2e3ece 573void AliMC::ResetDigits()
574{
575 //
576 // Reset all Detectors digits
577 //
578 TIter next(gAlice->Modules());
579 AliModule *detector;
580 while((detector = dynamic_cast<AliModule*>(next()))) {
581 detector->ResetDigits();
582 }
583}
584
585//_______________________________________________________________________
586void AliMC::ResetSDigits()
587{
588 //
589 // Reset all Detectors digits
590 //
591 TIter next(gAlice->Modules());
592 AliModule *detector;
593 while((detector = dynamic_cast<AliModule*>(next()))) {
594 detector->ResetSDigits();
595 }
596}
597
598//_______________________________________________________________________
5d12ce38 599void AliMC::PostTrack()
600{
d0d4a6b3 601 // Posts tracks for each module
dde0a601 602
4a9de4af 603 TObjArray &dets = *gAlice->Modules();
604 AliModule *module;
605
606 for(Int_t i=0; i<=gAlice->GetNdets(); i++)
607 if((module = dynamic_cast<AliModule*>(dets[i])))
608 module->PostTrack();
5d12ce38 609}
610
611//_______________________________________________________________________
612void AliMC::FinishPrimary()
613{
614 //
615 // Called at the end of each primary track
616 //
dde0a601 617
33c3c91a 618 AliRunLoader *runloader=AliRunLoader::Instance();
5d12ce38 619 // static Int_t count=0;
620 // const Int_t times=10;
621 // This primary is finished, purify stack
c75cfb51 622#if ROOT_VERSION_CODE > 262152
942a9039 623 if (!(gMC->SecondariesAreOrdered())) {
77db8cbf 624 if (runloader->Stack()->ReorderKine()) RemapHits();
942a9039 625 }
c75cfb51 626#endif
77db8cbf 627 if (runloader->Stack()->PurifyKine()) RemapHits();
504b172d 628
5d12ce38 629 TIter next(gAlice->Modules());
630 AliModule *detector;
631 while((detector = dynamic_cast<AliModule*>(next()))) {
632 detector->FinishPrimary();
504b172d 633 AliLoader* loader = detector->GetLoader();
634 if(loader)
635 {
636 TTree* treeH = loader->TreeH();
637 if (treeH) treeH->Fill(); //can be Lego run and treeH can not exist
638 }
5d12ce38 639 }
640
641 // Write out track references if any
3cac0921 642 if (fTmpTreeTR) fTmpTreeTR->Fill();
5d12ce38 643}
644
942a9039 645void AliMC::RemapHits()
646{
647//
648// Remaps the track labels of the hits
33c3c91a 649 AliRunLoader *runloader=AliRunLoader::Instance();
942a9039 650 AliStack* stack = runloader->Stack();
651 TList* hitLists = GetHitLists();
652 TIter next(hitLists);
653 TCollection *hitList;
654
655 while((hitList = dynamic_cast<TCollection*>(next()))) {
656 TIter nexthit(hitList);
657 AliHit *hit;
658 while((hit = dynamic_cast<AliHit*>(nexthit()))) {
659 hit->SetTrack(stack->TrackLabel(hit->GetTrack()));
660 }
661 }
662
663 //
664 // This for detectors which have a special mapping mechanism
665 // for hits, such as TPC and TRD
666 //
ac2b85c0 667
942a9039 668
669 TObjArray* modules = gAlice->Modules();
670 TIter nextmod(modules);
ac2b85c0 671 AliModule *module;
672 while((module = (AliModule*) nextmod())) {
673 AliDetector* det = dynamic_cast<AliDetector*> (module);
674 if (det) det->RemapTrackHitIDs(stack->TrackLabelMap());
942a9039 675 }
676 //
677 RemapTrackReferencesIDs(stack->TrackLabelMap());
678}
679
5d12ce38 680//_______________________________________________________________________
681void AliMC::FinishEvent()
682{
683 //
684 // Called at the end of the event.
685 //
38ca2ad6 686
3e2e3ece 687 if(AliSimulation::Instance()->Lego()) AliSimulation::Instance()->Lego()->FinishEvent();
5d12ce38 688
689 TIter next(gAlice->Modules());
690 AliModule *detector;
691 while((detector = dynamic_cast<AliModule*>(next()))) {
692 detector->FinishEvent();
693 }
694
695 //Update the energy deposit tables
696 Int_t i;
697 for(i=0;i<fEventEnergy.GetSize();i++)
698 {
699 fSummEnergy[i]+=fEventEnergy[i];
700 fSum2Energy[i]+=fEventEnergy[i]*fEventEnergy[i];
701 }
702
33c3c91a 703 AliRunLoader *runloader=AliRunLoader::Instance();
5d12ce38 704
705 AliHeader* header = runloader->GetHeader();
706 AliStack* stack = runloader->Stack();
707 if ( (header == 0x0) || (stack == 0x0) )
708 {//check if we got header and stack. If not cry and exit aliroot
21bf7095 709 AliFatal("Can not get the stack or header from LOADER");
5d12ce38 710 return;//never reached
711 }
712 // Update Header information
713 header->SetNprimary(stack->GetNprimary());
714 header->SetNtrack(stack->GetNtrack());
475baf89 715 header->SetTimeStamp(AliSimulation::Instance()->GenerateTimeStamp());
5d12ce38 716
5d12ce38 717 // Write out the kinematics
3e2e3ece 718 if (!AliSimulation::Instance()->Lego()) stack->FinishEvent();
3cac0921 719
720 // Synchronize the TreeTR with TreeK
172bc1fb 721 if (fTmpTreeTR) ReorderAndExpandTreeTR();
5d12ce38 722
723 // Write out the event Header information
724 TTree* treeE = runloader->TreeE();
725 if (treeE)
726 {
727 header->SetStack(stack);
728 treeE->Fill();
729 }
730 else
731 {
21bf7095 732 AliError("Can not get TreeE from RL");
5d12ce38 733 }
734
3e2e3ece 735 if(AliSimulation::Instance()->Lego() == 0x0)
504b172d 736 {
737 runloader->WriteKinematics("OVERWRITE");
738 runloader->WriteTrackRefs("OVERWRITE");
739 runloader->WriteHits("OVERWRITE");
740 }
741
21bf7095 742 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
743 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
744 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
745 AliDebug(1, " FINISHING EVENT ");
746 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
747 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
748 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
5d12ce38 749}
750
751//_______________________________________________________________________
5d12ce38 752void AliMC::Init()
753{
d0d4a6b3 754 // MC initialization
5d12ce38 755
9d188d33 756
5d12ce38 757 //=================Create Materials and geometry
758 gMC->Init();
4e889ff4 759 // Set alignable volumes for the whole geometry (with old root)
760#if ROOT_VERSION_CODE < 331527
761 SetAllAlignableVolumes();
762#endif
5d12ce38 763 //Read the cuts for all materials
764 ReadTransPar();
765 //Build the special IMEDIA table
766 MediaTable();
767
768 //Compute cross-sections
769 gMC->BuildPhysics();
770
5d12ce38 771 //Initialise geometry deposition table
772 fEventEnergy.Set(gMC->NofVolumes()+1);
773 fSummEnergy.Set(gMC->NofVolumes()+1);
774 fSum2Energy.Set(gMC->NofVolumes()+1);
775
5d12ce38 776 // Register MC in configuration
777 AliConfig::Instance()->Add(gMC);
5d12ce38 778}
779
780//_______________________________________________________________________
781void AliMC::MediaTable()
782{
783 //
784 // Built media table to get from the media number to
785 // the detector id
786 //
787
788 Int_t kz, nz, idt, lz, i, k, ind;
789 // Int_t ibeg;
790 TObjArray &dets = *gAlice->Detectors();
791 AliModule *det;
792 Int_t ndets=gAlice->GetNdets();
793 //
794 // For all detectors
795 for (kz=0;kz<ndets;kz++) {
796 // If detector is defined
797 if((det=dynamic_cast<AliModule*>(dets[kz]))) {
798 TArrayI &idtmed = *(det->GetIdtmed());
799 for(nz=0;nz<100;nz++) {
0561efeb 800
5d12ce38 801 // Find max and min material number
802 if((idt=idtmed[nz])) {
803 det->LoMedium() = det->LoMedium() < idt ? det->LoMedium() : idt;
804 det->HiMedium() = det->HiMedium() > idt ? det->HiMedium() : idt;
805 }
806 }
807 if(det->LoMedium() > det->HiMedium()) {
808 det->LoMedium() = 0;
809 det->HiMedium() = 0;
810 } else {
811 if(det->HiMedium() > fImedia->GetSize()) {
21bf7095 812 AliError(Form("Increase fImedia from %d to %d",
813 fImedia->GetSize(),det->HiMedium()));
5d12ce38 814 return;
815 }
816 // Tag all materials in rage as belonging to detector kz
817 for(lz=det->LoMedium(); lz<= det->HiMedium(); lz++) {
818 (*fImedia)[lz]=kz;
819 }
820 }
821 }
822 }
823 //
824 // Print summary table
21bf7095 825 AliInfo("Tracking media ranges:");
826 ToAliInfo(
5d12ce38 827 for(i=0;i<(ndets-1)/6+1;i++) {
828 for(k=0;k< (6<ndets-i*6?6:ndets-i*6);k++) {
829 ind=i*6+k;
830 det=dynamic_cast<AliModule*>(dets[ind]);
831 if(det)
832 printf(" %6s: %3d -> %3d;",det->GetName(),det->LoMedium(),
833 det->HiMedium());
834 else
835 printf(" %6s: %3d -> %3d;","NULL",0,0);
836 }
837 printf("\n");
838 }
13242232 839 );
5d12ce38 840}
841
842//_______________________________________________________________________
843void AliMC::ReadTransPar()
844{
845 //
846 // Read filename to set the transport parameters
847 //
848
849
850 const Int_t kncuts=10;
61721f6c 851 const Int_t knflags=12;
5d12ce38 852 const Int_t knpars=kncuts+knflags;
853 const char kpars[knpars][7] = {"CUTGAM" ,"CUTELE","CUTNEU","CUTHAD","CUTMUO",
854 "BCUTE","BCUTM","DCUTE","DCUTM","PPCUTM","ANNI",
855 "BREM","COMP","DCAY","DRAY","HADR","LOSS",
61721f6c 856 "MULS","PAIR","PHOT","RAYL","STRA"};
5d12ce38 857 char line[256];
858 char detName[7];
859 char* filtmp;
860 Float_t cut[kncuts];
861 Int_t flag[knflags];
862 Int_t i, itmed, iret, ktmed, kz;
863 FILE *lun;
864 //
865 // See whether the file is there
866 filtmp=gSystem->ExpandPathName(fTransParName.Data());
867 lun=fopen(filtmp,"r");
868 delete [] filtmp;
869 if(!lun) {
21bf7095 870 AliWarning(Form("File %s does not exist!",fTransParName.Data()));
5d12ce38 871 return;
872 }
873 //
5d12ce38 874 while(1) {
875 // Initialise cuts and flags
876 for(i=0;i<kncuts;i++) cut[i]=-99;
877 for(i=0;i<knflags;i++) flag[i]=-99;
878 itmed=0;
01a0f5d0 879 memset(line,0,256);
5d12ce38 880 // Read up to the end of line excluded
01a0f5d0 881 iret=fscanf(lun,"%255[^\n]",line);
5d12ce38 882 if(iret<0) {
883 //End of file
884 fclose(lun);
5d12ce38 885 return;
886 }
887 // Read the end of line
58af8e48 888 iret=fscanf(lun,"%*c");
5d12ce38 889 if(!iret) continue;
890 if(line[0]=='*') continue;
891 // Read the numbers
e6585570 892 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",
5d12ce38 893 detName,&itmed,&cut[0],&cut[1],&cut[2],&cut[3],&cut[4],&cut[5],&cut[6],&cut[7],&cut[8],
894 &cut[9],&flag[0],&flag[1],&flag[2],&flag[3],&flag[4],&flag[5],&flag[6],&flag[7],
61721f6c 895 &flag[8],&flag[9],&flag[10],&flag[11]);
5d12ce38 896 if(!iret) continue;
897 if(iret<0) {
898 //reading error
21bf7095 899 AliWarning(Form("Error reading file %s",fTransParName.Data()));
5d12ce38 900 continue;
901 }
902 // Check that the module exist
903 AliModule *mod = gAlice->GetModule(detName);
904 if(mod) {
905 // Get the array of media numbers
906 TArrayI &idtmed = *mod->GetIdtmed();
907 // Check that the tracking medium code is valid
908 if(0<=itmed && itmed < 100) {
909 ktmed=idtmed[itmed];
910 if(!ktmed) {
21bf7095 911 AliWarning(Form("Invalid tracking medium code %d for %s",itmed,mod->GetName()));
5d12ce38 912 continue;
913 }
914 // Set energy thresholds
915 for(kz=0;kz<kncuts;kz++) {
916 if(cut[kz]>=0) {
21bf7095 917 AliDebug(2, Form("%-6s set to %10.3E for tracking medium code %4d for %s",
918 kpars[kz],cut[kz],itmed,mod->GetName()));
5d12ce38 919 gMC->Gstpar(ktmed,kpars[kz],cut[kz]);
920 }
921 }
922 // Set transport mechanisms
923 for(kz=0;kz<knflags;kz++) {
924 if(flag[kz]>=0) {
21bf7095 925 AliDebug(2, Form("%-6s set to %10d for tracking medium code %4d for %s",
926 kpars[kncuts+kz],flag[kz],itmed,mod->GetName()));
5d12ce38 927 gMC->Gstpar(ktmed,kpars[kncuts+kz],Float_t(flag[kz]));
928 }
929 }
930 } else {
21bf7095 931 AliWarning(Form("Invalid medium code %d",itmed));
5d12ce38 932 continue;
933 }
934 } else {
21bf7095 935 AliDebug(1, Form("%s not present",detName));
5d12ce38 936 continue;
937 }
938 }
939}
940
941//_______________________________________________________________________
942void AliMC::SetTransPar(const char *filename)
943{
944 //
945 // Sets the file name for transport parameters
946 //
947 fTransParName = filename;
948}
949
950//_______________________________________________________________________
5d12ce38 951void AliMC::AddHit(Int_t id, Int_t track, Int_t *vol, Float_t *hits) const
952{
953 //
954 // Add a hit to detector id
955 //
956 TObjArray &dets = *gAlice->Modules();
1c9a8216 957 if(dets[id]) static_cast<AliModule*>(dets[id])->AddHit(track,vol,hits);
5d12ce38 958}
959
960//_______________________________________________________________________
961void AliMC::AddDigit(Int_t id, Int_t *tracks, Int_t *digits) const
962{
963 //
964 // Add digit to detector id
965 //
966 TObjArray &dets = *gAlice->Modules();
1c9a8216 967 if(dets[id]) static_cast<AliModule*>(dets[id])->AddDigit(tracks,digits);
5d12ce38 968}
969
970//_______________________________________________________________________
971Int_t AliMC::GetCurrentTrackNumber() const {
972 //
973 // Returns current track
974 //
33c3c91a 975 return AliRunLoader::Instance()->Stack()->GetCurrentTrackNumber();
5d12ce38 976}
977
978//_______________________________________________________________________
979void AliMC::DumpPart (Int_t i) const
980{
981 //
982 // Dumps particle i in the stack
983 //
33c3c91a 984 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 985 if (runloader->Stack())
986 runloader->Stack()->DumpPart(i);
987}
988
989//_______________________________________________________________________
990void AliMC::DumpPStack () const
991{
992 //
993 // Dumps the particle stack
994 //
33c3c91a 995 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 996 if (runloader->Stack())
997 runloader->Stack()->DumpPStack();
998}
999
1000//_______________________________________________________________________
1001Int_t AliMC::GetNtrack() const {
1002 //
1003 // Returns number of tracks in stack
1004 //
1005 Int_t ntracks = -1;
33c3c91a 1006 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1007 if (runloader->Stack())
1008 ntracks = runloader->Stack()->GetNtrack();
1009 return ntracks;
1010}
1011
1012//_______________________________________________________________________
1013Int_t AliMC::GetPrimary(Int_t track) const
1014{
1015 //
1016 // return number of primary that has generated track
1017 //
1018 Int_t nprimary = -999;
33c3c91a 1019 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1020 if (runloader->Stack())
1021 nprimary = runloader->Stack()->GetPrimary(track);
1022 return nprimary;
1023}
1024
1025//_______________________________________________________________________
1026TParticle* AliMC::Particle(Int_t i) const
1027{
d0d4a6b3 1028 // Returns the i-th particle from the stack taking into account
1029 // the remaping done by PurifyKine
33c3c91a 1030 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1031 if (runloader)
1032 if (runloader->Stack())
1033 return runloader->Stack()->Particle(i);
1034 return 0x0;
1035}
1036
1037//_______________________________________________________________________
6c753956 1038const TObjArray* AliMC::Particles() const {
5d12ce38 1039 //
1040 // Returns pointer to Particles array
1041 //
33c3c91a 1042 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1043 if (runloader)
1044 if (runloader->Stack())
1045 return runloader->Stack()->Particles();
1046 return 0x0;
1047}
1048
1049//_______________________________________________________________________
3e2e3ece 1050void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg, const Float_t *pmom,
1051 const Float_t *vpos, const Float_t *polar, Float_t tof,
2057aecb 1052 TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const
5d12ce38 1053{
1054// Delegate to stack
1055//
33c3c91a 1056 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1057 if (runloader)
1058 if (runloader->Stack())
1059 runloader->Stack()->PushTrack(done, parent, pdg, pmom, vpos, polar, tof,
1060 mech, ntr, weight, is);
1061}
1062
1063//_______________________________________________________________________
1064void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg,
1065 Double_t px, Double_t py, Double_t pz, Double_t e,
1066 Double_t vx, Double_t vy, Double_t vz, Double_t tof,
1067 Double_t polx, Double_t poly, Double_t polz,
2057aecb 1068 TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const
5d12ce38 1069{
1070 // Delegate to stack
1071 //
33c3c91a 1072 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1073 if (runloader)
1074 if (runloader->Stack())
1075 runloader->Stack()->PushTrack(done, parent, pdg, px, py, pz, e, vx, vy, vz, tof,
1076 polx, poly, polz, mech, ntr, weight, is);
1077}
1078
1079//_______________________________________________________________________
2057aecb 1080void AliMC::SetHighWaterMark(Int_t nt) const
5d12ce38 1081{
1082 //
1083 // Set high water mark for last track in event
33c3c91a 1084 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1085 if (runloader)
1086 if (runloader->Stack())
1087 runloader->Stack()->SetHighWaterMark(nt);
1088}
1089
1090//_______________________________________________________________________
2057aecb 1091void AliMC::KeepTrack(Int_t track) const
5d12ce38 1092{
1093 //
1094 // Delegate to stack
1095 //
33c3c91a 1096 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1097 if (runloader)
1098 if (runloader->Stack())
1099 runloader->Stack()->KeepTrack(track);
1100}
1101
1102//_______________________________________________________________________
2057aecb 1103void AliMC::FlagTrack(Int_t track) const
5d12ce38 1104{
1105 // Delegate to stack
1106 //
33c3c91a 1107 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1108 if (runloader)
1109 if (runloader->Stack())
1110 runloader->Stack()->FlagTrack(track);
1111}
1112
1113//_______________________________________________________________________
2057aecb 1114void AliMC::SetCurrentTrack(Int_t track) const
5d12ce38 1115{
1116 //
1117 // Set current track number
1118 //
33c3c91a 1119 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1120 if (runloader)
1121 if (runloader->Stack())
1122 runloader->Stack()->SetCurrentTrack(track);
1123}
1124
1125//_______________________________________________________________________
9ac3aec9 1126AliTrackReference* AliMC::AddTrackReference(Int_t label, Int_t id)
1127{
5d12ce38 1128 //
1129 // add a trackrefernce to the list
9ac3aec9 1130 Int_t primary = GetPrimary(label);
1131 Particle(primary)->SetBit(kKeepBit);
1132
fd650020 1133 Int_t nref = fTmpTrackReferences.GetEntriesFast();
1134 return new(fTmpTrackReferences[nref]) AliTrackReference(label, id);
5d12ce38 1135}
1136
1137
1138
1139//_______________________________________________________________________
1140void AliMC::ResetTrackReferences()
1141{
1142 //
1143 // Reset all references
1144 //
fd650020 1145 fTmpTrackReferences.Clear();
5d12ce38 1146}
1147
dde0a601 1148//_______________________________________________________________________
6da30991 1149void AliMC::RemapTrackReferencesIDs(const Int_t *map)
5d12ce38 1150{
1151 //
1152 // Remapping track reference
1153 // Called at finish primary
1154 //
fd650020 1155
1156 Int_t nEntries = fTmpTrackReferences.GetEntries();
4e490a96 1157 for (Int_t i=0; i < nEntries; i++){
fd650020 1158 AliTrackReference * ref = dynamic_cast<AliTrackReference*>(fTmpTrackReferences.UncheckedAt(i));
4e490a96 1159 if (ref) {
1160 Int_t newID = map[ref->GetTrack()];
1161 if (newID>=0) ref->SetTrack(newID);
1162 else {
1163 ref->SetBit(kNotDeleted,kFALSE);
fd650020 1164 fTmpTrackReferences.RemoveAt(i);
4e490a96 1165 }
1166 } // if ref
5d12ce38 1167 }
fd650020 1168 fTmpTrackReferences.Compress();
5d12ce38 1169}
0561efeb 1170
dde0a601 1171//_______________________________________________________________________
0561efeb 1172void AliMC::FixParticleDecaytime()
1173{
1174 //
1175 // Fix the particle decay time according to rmin and rmax for decays
1176 //
1177
1178 TLorentzVector p;
1179 gMC->TrackMomentum(p);
1180 Double_t tmin, tmax;
1181 Double_t b;
1182
1183 // Transverse velocity
1184 Double_t vt = p.Pt() / p.E();
1185
f7a1cc68 1186 if ((b = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->SolenoidField()) > 0.) { // [kG]
0561efeb 1187
1188 // Radius of helix
1189
1190 Double_t rho = p.Pt() / 0.0003 / b; // [cm]
1191
1192 // Revolution frequency
1193
1194 Double_t omega = vt / rho;
1195
1196 // Maximum and minimum decay time
1197 //
1198 // Check for curlers first
bfd20868 1199 const Double_t kOvRhoSqr2 = 1./(rho*TMath::Sqrt(2.));
1200 if (fRDecayMax * kOvRhoSqr2 > 1.) return;
0561efeb 1201
1202 //
1203
bfd20868 1204 tmax = TMath::ACos((1.-fRDecayMax*kOvRhoSqr2)*(1.+fRDecayMax*kOvRhoSqr2)) / omega; // [ct]
ec29d701 1205 tmin = TMath::ACos((1.-fRDecayMin*kOvRhoSqr2)*(1.+fRDecayMin*kOvRhoSqr2)) / omega; // [ct]
0561efeb 1206 } else {
1207 tmax = fRDecayMax / vt; // [ct]
1208 tmin = fRDecayMin / vt; // [ct]
1209 }
1210
1211 //
1212 // Dial t using the two limits
1213 Double_t t = tmin + (tmax - tmin) * gRandom->Rndm(); // [ct]
1214 //
1215 //
1216 // Force decay time in transport code
1217 //
fa7ca4da 1218 gMC->ForceDecayTime(t / 2.99792458e10);
0561efeb 1219}
3cac0921 1220
1221void AliMC::MakeTmpTrackRefsTree()
1222{
1223 // Make the temporary track reference tree
1224 fTmpFileTR = new TFile("TrackRefsTmp.root", "recreate");
1225 fTmpTreeTR = new TTree("TreeTR", "Track References");
fd650020 1226 TClonesArray* pRef = &fTmpTrackReferences;
fda9d714 1227 fTmpTreeTR->Branch("TrackReferences", &pRef, 4000);
3cac0921 1228}
1229
dde0a601 1230//_______________________________________________________________________
3cac0921 1231void AliMC::ReorderAndExpandTreeTR()
1232{
1233//
1234// Reorder and expand the temporary track reference tree in order to match the kinematics tree
1235//
1236
33c3c91a 1237 AliRunLoader *rl = AliRunLoader::Instance();
3cac0921 1238//
1239// TreeTR
1240 AliDebug(1, "fRunLoader->MakeTrackRefsContainer()");
1241 rl->MakeTrackRefsContainer();
1242 TTree * treeTR = rl->TreeTR();
3cac0921 1243 // make branch for central track references
fd650020 1244 TClonesArray* pRef = &fTrackReferences;
7275b148 1245 treeTR->Branch("TrackReferences", &pRef);
3cac0921 1246
1247 AliStack* stack = rl->Stack();
1248 Int_t np = stack->GetNprimary();
1249 Int_t nt = fTmpTreeTR->GetEntries();
3cac0921 1250 //
1251 // Loop over tracks and find the secondaries with the help of the kine tree
5ce21fc4 1252 Int_t ifills = 0;
1253 Int_t it = 0;
1254 for (Int_t ip = np - 1; ip > -1; ip--) {
1255 TParticle *part = stack->Particle(ip);
5a9cf418 1256 //printf("Particle %5d %5d %5d %5d %5d \n", ip, part->GetPdgCode(), part->GetFirstMother(), part->GetFirstDaughter(), part->GetLastDaughter());
2c4e7c77 1257
5ce21fc4 1258 // Skip primaries that have not been transported
3cac0921 1259 Int_t dau1 = part->GetFirstDaughter();
1260 Int_t dau2 = -1;
f4414561 1261 if (!part->TestBit(kTransportBit)) continue;
5ce21fc4 1262 //
1263 fTmpTreeTR->GetEntry(it++);
fd650020 1264 Int_t nh = fTmpTrackReferences.GetEntries();
5ce21fc4 1265 // Determine range of secondaries produced by this primary
3cac0921 1266 if (dau1 > -1) {
5ce21fc4 1267 Int_t inext = ip - 1;
3cac0921 1268 while (dau2 < 0) {
1269 if (inext >= 0) {
1270 part = stack->Particle(inext);
5ce21fc4 1271 dau2 = part->GetFirstDaughter();
5a9cf418 1272 if (!(part->TestBit(kTransportBit)) || dau2 == -1 || dau2 < np) {
1273// if (dau2 == -1 || dau2 < np) {
5ce21fc4 1274 dau2 = -1;
1275 } else {
1276 dau2--;
1277 }
3cac0921 1278 } else {
1279 dau2 = stack->GetNtrack() - 1;
1280 }
1281 inext--;
5ce21fc4 1282 } // find upper bound
1283 } // dau2 < 0
2c4e7c77 1284// printf("Check (1) %5d %5d %5d %5d %5d \n", ip, np, it, dau1, dau2);
3cac0921 1285 //
1286 // Loop over reference hits and find secondary label
1287 for (Int_t id = dau1; (id <= dau2) && (dau1 > -1); id++) {
1288 for (Int_t ih = 0; ih < nh; ih++) {
fd650020 1289 AliTrackReference* tr = (AliTrackReference*) fTmpTrackReferences.At(ih);
3cac0921 1290 Int_t label = tr->Label();
5ce21fc4 1291 // Skip primaries
1292 if (label == ip) continue;
2c4e7c77 1293 if (label > dau2 || label < dau1)
1294 AliWarning(Form("Track Reference Label out of range !: %5d %5d %5d \n", label, dau1, dau2));
3cac0921 1295 if (label == id) {
1296 // secondary found
fd650020 1297 Int_t nref = fTrackReferences.GetEntriesFast();
1298 new(fTrackReferences[nref]) AliTrackReference(*tr);
3cac0921 1299 }
1300 } // hits
1301 treeTR->Fill();
fd650020 1302 fTrackReferences.Clear();
5ce21fc4 1303 ifills++;
3cac0921 1304 } // daughters
1305 } // tracks
3cac0921 1306 //
1307 // Now loop again and write the primaries
5ce21fc4 1308 it = nt - 1;
1309 for (Int_t ip = 0; ip < np; ip++) {
1310 TParticle* part = stack->Particle(ip);
f4414561 1311// if ((part->GetFirstDaughter() == -1 && part->GetStatusCode() <= 1) || part->GetFirstDaughter() >= np)
c226988d 1312 if (part->TestBit(kTransportBit))
f4414561 1313 {
5ce21fc4 1314 // Skip particles that have not been transported
1315 fTmpTreeTR->GetEntry(it--);
fd650020 1316 Int_t nh = fTmpTrackReferences.GetEntries();
5ce21fc4 1317 //
1318 // Loop over reference hits and find primary labels
1319 for (Int_t ih = 0; ih < nh; ih++) {
fd650020 1320 AliTrackReference* tr = (AliTrackReference*) fTmpTrackReferences.At(ih);
5ce21fc4 1321 Int_t label = tr->Label();
1322 if (label == ip) {
fd650020 1323 Int_t nref = fTrackReferences.GetEntriesFast();
1324 new(fTrackReferences[nref]) AliTrackReference(*tr);
5ce21fc4 1325 }
1326 }
3cac0921 1327 }
1328 treeTR->Fill();
fd650020 1329 fTrackReferences.Clear();
5ce21fc4 1330 ifills++;
3cac0921 1331 } // tracks
5ce21fc4 1332 // Check
1333 if (ifills != stack->GetNtrack())
1334 AliWarning(Form("Number of entries in TreeTR (%5d) unequal to TreeK (%5d) \n", ifills, stack->GetNtrack()));
3cac0921 1335//
1336// Clean-up
1337 delete fTmpTreeTR;
1338 fTmpFileTR->Close();
1339 delete fTmpFileTR;
fd650020 1340 fTmpTrackReferences.Clear();
3cac0921 1341 gSystem->Exec("rm -rf TrackRefsTmp.root");
1342}
1343