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