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