1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 ///////////////////////////////////////////////////////////////////////////////
18 // TRD trigger class //
23 ///////////////////////////////////////////////////////////////////////////////
28 #include <TClonesArray.h>
29 #include <TObjArray.h>
33 #include "AliLoader.h"
35 #include "AliTRDdigitsManager.h"
36 #include "AliTRDgeometry.h"
37 #include "AliTRDdataArrayI.h"
38 #include "AliTRDcalibDB.h"
39 #include "AliTRDrawData.h"
40 #include "AliTRDtrigger.h"
41 #include "AliTRDmodule.h"
42 #include "AliTRDmcmTracklet.h"
43 #include "AliTRDgtuTrack.h"
44 #include "AliTRDtrigParam.h"
45 #include "AliTRDmcm.h"
46 #include "AliTRDzmaps.h"
47 #include "AliTRDCalibraFillHisto.h"
48 #include "Cal/AliTRDCalPID.h"
50 ClassImp(AliTRDtrigger)
52 //_____________________________________________________________________________
53 AliTRDtrigger::AliTRDtrigger()
76 // AliTRDtrigger default constructor
81 //_____________________________________________________________________________
82 AliTRDtrigger::AliTRDtrigger(const Text_t *name, const Text_t *title)
87 ,fDigitsManager(new AliTRDdigitsManager())
89 ,fTracklets(new TObjArray(400))
102 ,fTracks(new TClonesArray("AliTRDgtuTrack",1000))
105 // AliTRDtrigger constructor
110 //_____________________________________________________________________________
111 AliTRDtrigger::AliTRDtrigger(const AliTRDtrigger &p)
116 ,fDigitsManager(NULL)
125 ,fNtracklets(p.fNtracklets)
130 ,fNPrimary(p.fNPrimary)
134 // AliTRDtrigger copy constructor
140 fGeo = new AliTRDgeometry();
144 ///_____________________________________________________________________________
145 AliTRDtrigger::~AliTRDtrigger()
148 // AliTRDtrigger destructor
152 fTracklets->Delete();
165 delete fDigitsManager;
173 //_____________________________________________________________________________
174 AliTRDtrigger &AliTRDtrigger::operator=(const AliTRDtrigger &p)
177 // Assignment operator
180 if (this != &p) ((AliTRDtrigger &) p).Copy(*this);
185 //_____________________________________________________________________________
186 void AliTRDtrigger::Copy(TObject &) const
192 AliFatal("Not implemented");
196 //_____________________________________________________________________________
197 void AliTRDtrigger::Init()
200 fModule = new AliTRDmodule();
203 // The magnetic field strength
204 Double_t x[3] = { 0.0, 0.0, 0.0 };
206 gAlice->Field(x,b); // b[] is in kilo Gauss
207 fField = b[2] * 0.1; // Tesla
209 fGeo = new AliTRDgeometry();
211 if (!AliTRDcalibDB::Instance()) {
212 AliError("No instance of AliTRDcalibDB.");
218 //_____________________________________________________________________________
219 Bool_t AliTRDtrigger::Open(const Char_t *name, Int_t nEvent)
222 // Opens the AliROOT file.
225 TString evfoldname = AliConfig::GetDefaultEventFolderName();
226 fRunLoader = AliRunLoader::GetRunLoader(evfoldname);
229 fRunLoader = AliRunLoader::Open(name);
232 AliError(Form("Can not open session for file %s.",name));
236 // Import the Trees for the event nEvent in the file
237 fRunLoader->GetEvent(nEvent);
240 TObjArray *ioArray = 0;
241 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
242 loader->MakeTree("T");
243 fTrackletTree = loader->TreeT();
244 fTrackletTree->Branch("TRDmcmTracklet","TObjArray",&ioArray,32000,0);
251 //_____________________________________________________________________________
252 Bool_t AliTRDtrigger::ReadDigits()
255 // Reads the digits arrays from the input aliroot file
259 AliError("Can not find the Run Loader");
263 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
264 if (!loader->TreeD()) {
265 loader->LoadDigits();
267 if (!loader->TreeD()) {
271 return (fDigitsManager->ReadDigits(loader->TreeD()));
275 //_____________________________________________________________________________
276 Bool_t AliTRDtrigger::ReadDigits(AliRawReader* rawReader)
279 // Reads the digits arrays from the ddl file
282 AliTRDrawData *raw = new AliTRDrawData();
283 fDigitsManager = raw->Raw2Digits(rawReader);
289 //_____________________________________________________________________________
290 Bool_t AliTRDtrigger::ReadDigits(TTree *digitsTree)
293 // Reads the digits arrays from the input tree
296 return (fDigitsManager->ReadDigits(digitsTree));
300 //_____________________________________________________________________________
301 Bool_t AliTRDtrigger::ReadTracklets(AliRunLoader *rl)
304 // Reads the tracklets find the tracks
309 AliLoader *loader = rl->GetLoader("TRDLoader");
310 loader->LoadTracks();
311 fTrackletTree = loader->TreeT();
313 TBranch *branch = fTrackletTree->GetBranch("TRDmcmTracklet");
315 AliError("Can't get the branch !");
318 TObjArray *tracklets = new TObjArray(400);
319 branch->SetAddress(&tracklets);
321 Int_t nEntries = (Int_t) fTrackletTree->GetEntries();
325 Int_t iStackPrev = -1;
327 for (iEntry = 0; iEntry < nEntries; iEntry++) {
329 fTrackletTree->GetEvent(iEntry);
331 for (itrk = 0; itrk < tracklets->GetEntriesFast(); itrk++) {
333 fTrk = (AliTRDmcmTracklet *) tracklets->UncheckedAt(itrk);
334 idet = fTrk->GetDetector();
335 iStack = idet / (AliTRDgeometry::Nplan());
337 if (iStackPrev != iStack) {
338 if (iStackPrev == -1) {
342 MakeTracks(idet - AliTRDgeometry::Nplan());
348 Tracklets()->Add(fTrk);
350 if ((iEntry == (nEntries-1)) &&
351 (itrk == (tracklets->GetEntriesFast() - 1))) {
353 MakeTracks(idet-AliTRDgeometry::Nplan());
361 loader->UnloadTracks();
367 //_____________________________________________________________________________
368 Bool_t AliTRDtrigger::MakeTracklets(Bool_t makeTracks)
371 // Create tracklets from digits
375 Int_t chamEnd = AliTRDgeometry::Ncham();
377 Int_t planEnd = AliTRDgeometry::Nplan();
379 Int_t sectEnd = AliTRDgeometry::Nsect();
381 fTrkTest = new AliTRDmcmTracklet(0,0,0);
382 fMCM = new AliTRDmcm(0);
391 Int_t iStackPrev = -1;
394 for (Int_t isect = sectBeg; isect < sectEnd; isect++) {
396 for (Int_t icham = chamBeg; icham < chamEnd; icham++) {
398 // Number of ROBs in the chamber
406 for (Int_t iplan = planBeg; iplan < planEnd; iplan++) {
408 idet = fGeo->GetDetector(iplan,icham,isect);
412 iStack = idet / (AliTRDgeometry::Nplan());
413 if (iStackPrev != iStack) {
414 if (iStackPrev == -1) {
418 MakeTracks(idet-AliTRDgeometry::Nplan());
425 Int_t nRowMax = fGeo->GetRowMax(iplan,icham,isect);
426 Int_t nColMax = fGeo->GetColMax(iplan);
427 Int_t nTimeTotal = AliTRDcalibDB::Instance()->GetNumberOfTimeBins();
430 fDigits = fDigitsManager->GetDigits(idet);
431 if (!fDigits) return kFALSE;
432 // This is to take care of switched off super modules
433 if (fDigits->GetNtime() == 0) {
437 fTrack0 = fDigitsManager->GetDictionary(idet,0);
438 if (!fTrack0) return kFALSE;
440 fTrack1 = fDigitsManager->GetDictionary(idet,1);
441 if (!fTrack1) return kFALSE;
443 fTrack2 = fDigitsManager->GetDictionary(idet,2);
444 if (!fTrack2) return kFALSE;
447 for (Int_t iRob = 0; iRob < fNROB; iRob++) {
449 for (Int_t iMcm = 0; iMcm < kNMCM; iMcm++) {
452 fMCM->SetRobId(iRob);
453 fMCM->SetChaId(idet);
455 SetMCMcoordinates(iMcm);
457 row = fMCM->GetRow();
459 if ((row < 0) || (row >= nRowMax)) {
460 AliError("MCM row number out of range.");
464 fMCM->GetColRange(col1,col2);
466 for (time = 0; time < nTimeTotal; time++) {
467 for (col = col1; col < col2; col++) {
468 if ((col >= 0) && (col < nColMax)) {
469 amp = TMath::Abs(fDigits->GetDataUnchecked(row,col,time));
474 fMCM->SetADC(col-col1,time,amp);
478 if (AliTRDtrigParam::Instance()->GetTailCancelation()) {
479 fMCM->Filter(AliTRDtrigParam::Instance()->GetNexponential()
480 ,AliTRDtrigParam::Instance()->GetFilterType());
485 for (Int_t iSeed = 0; iSeed < kMaxTrackletsPerMCM; iSeed++) {
487 if (fMCM->GetSeedCol()[iSeed] < 0) {
491 AliDebug(2,Form("Add tracklet %d in col %02d \n",fNtracklets,fMCM->GetSeedCol()[iSeed]));
493 if (TestTracklet(idet,row,iSeed,0)) {
494 AddTracklet(idet,row,iSeed,fNtracklets++);
506 // Compress the arrays
507 fDigits->Compress(1,0);
508 fTrack0->Compress(1,0);
509 fTrack1->Compress(1,0);
510 fTrack2->Compress(1,0);
512 WriteTracklets(idet);
520 MakeTracks(idet - AliTRDgeometry::Nplan());
528 //_____________________________________________________________________________
529 void AliTRDtrigger::SetMCMcoordinates(Int_t imcm)
532 // Configure MCM position in the pad plane
535 Int_t robid = fMCM->GetRobId();
537 // setting the Row and Col range
539 const Int_t kNcolRob = 2; // number of ROBs per chamber in column direction
540 const Int_t kNmcmRob = 4; // number of MCMs per ROB in column/row direction
542 Int_t mcmid = imcm%(kNmcmRob*kNmcmRob);
544 if (robid%kNcolRob == 0) {
546 if (mcmid%kNmcmRob == 0) {
547 fMCM->SetColRange(18*0-1,18*1-1+2+1);
549 if (mcmid%kNmcmRob == 1) {
550 fMCM->SetColRange(18*1-1,18*2-1+2+1);
552 if (mcmid%kNmcmRob == 2) {
553 fMCM->SetColRange(18*2-1,18*3-1+2+1);
555 if (mcmid%kNmcmRob == 3) {
556 fMCM->SetColRange(18*3-1,18*4-1+2+1);
562 if (mcmid%kNmcmRob == 0) {
563 fMCM->SetColRange(18*4-1,18*5-1+2+1);
565 if (mcmid%kNmcmRob == 1) {
566 fMCM->SetColRange(18*5-1,18*6-1+2+1);
568 if (mcmid%kNmcmRob == 2) {
569 fMCM->SetColRange(18*6-1,18*7-1+2+1);
571 if (mcmid%kNmcmRob == 3) {
572 fMCM->SetColRange(18*7-1,18*8-1+2+1);
577 fMCM->SetRow(kNmcmRob*(robid/kNcolRob)+mcmid/kNmcmRob);
581 //_____________________________________________________________________________
582 Bool_t AliTRDtrigger::TestTracklet(Int_t det, Int_t row, Int_t seed, Int_t n)
585 // Check first the tracklet pt
588 Int_t nTimeTotal = AliTRDcalibDB::Instance()->GetNumberOfTimeBins();
590 // Calibration fill 2D
591 AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance();
593 AliInfo("Could not get Calibra instance\n");
598 fTrkTest->SetDetector(det);
599 fTrkTest->SetRow(row);
602 Int_t iCol, iCol1, iCol2, track[3];
603 iCol = fMCM->GetSeedCol()[seed]; // 0....20 (MCM)
604 fMCM->GetColRange(iCol1,iCol2); // range in the pad plane
607 for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
609 amp[0] = fMCM->GetADC(iCol-1,iTime);
610 amp[1] = fMCM->GetADC(iCol ,iTime);
611 amp[2] = fMCM->GetADC(iCol+1,iTime);
613 // extract track contribution only from the central pad
614 track[0] = fTrack0->GetDataUnchecked(row,iCol+iCol1,iTime);
615 track[1] = fTrack1->GetDataUnchecked(row,iCol+iCol1,iTime);
616 track[2] = fTrack2->GetDataUnchecked(row,iCol+iCol1,iTime);
618 if (fMCM->IsCluster(iCol,iTime)) {
620 fTrkTest->AddCluster(iCol+iCol1,iTime,amp,track);
623 else if ((iCol+1+1) < kMcmCol) {
625 amp[0] = fMCM->GetADC(iCol-1+1,iTime);
626 amp[1] = fMCM->GetADC(iCol +1,iTime);
627 amp[2] = fMCM->GetADC(iCol+1+1,iTime);
629 if (fMCM->IsCluster(iCol+1,iTime)) {
631 // extract track contribution only from the central pad
632 track[0] = fTrack0->GetDataUnchecked(row,iCol+1+iCol1,iTime);
633 track[1] = fTrack1->GetDataUnchecked(row,iCol+1+iCol1,iTime);
634 track[2] = fTrack2->GetDataUnchecked(row,iCol+1+iCol1,iTime);
636 fTrkTest->AddCluster(iCol+1+iCol1,iTime,amp,track);
644 fTrkTest->CookLabel(0.8);
646 if (fTrkTest->GetLabel() >= fNPrimary) {
647 Info("AddTracklet","Only primaries are stored!");
652 fTrkTest->MakeTrackletGraph(fGeo,fField);
654 // TRD Online calibration
655 if (calibra->GetMcmTracking()) {
656 calibra->UpdateHistogramcm(fTrkTest);
659 fTrkTest->MakeClusAmpGraph();
661 if (TMath::Abs(fTrkTest->GetPt()) < AliTRDtrigParam::Instance()->GetLtuPtCut()) {
669 //_____________________________________________________________________________
670 void AliTRDtrigger::AddTracklet(Int_t det, Int_t row, Int_t seed, Int_t n)
673 // Add a found tracklet
676 Int_t nTimeTotal = AliTRDcalibDB::Instance()->GetNumberOfTimeBins();
678 fTrk = new AliTRDmcmTracklet(det,row,n);
680 Int_t iCol, iCol1, iCol2, track[3];
681 iCol = fMCM->GetSeedCol()[seed]; // 0....20 (MCM)
682 fMCM->GetColRange(iCol1,iCol2); // range in the pad plane
685 for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
687 amp[0] = fMCM->GetADC(iCol-1,iTime);
688 amp[1] = fMCM->GetADC(iCol ,iTime);
689 amp[2] = fMCM->GetADC(iCol+1,iTime);
691 // extract track contribution only from the central pad
692 track[0] = fTrack0->GetDataUnchecked(row,iCol+iCol1,iTime);
693 track[1] = fTrack1->GetDataUnchecked(row,iCol+iCol1,iTime);
694 track[2] = fTrack2->GetDataUnchecked(row,iCol+iCol1,iTime);
696 if (fMCM->IsCluster(iCol,iTime)) {
698 fTrk->AddCluster(iCol+iCol1,iTime,amp,track);
701 else if ((iCol+1+1) < kMcmCol) {
703 amp[0] = fMCM->GetADC(iCol-1+1,iTime);
704 amp[1] = fMCM->GetADC(iCol +1,iTime);
705 amp[2] = fMCM->GetADC(iCol+1+1,iTime);
707 if (fMCM->IsCluster(iCol+1,iTime)) {
709 // extract track contribution only from the central pad
710 track[0] = fTrack0->GetDataUnchecked(row,iCol+1+iCol1,iTime);
711 track[1] = fTrack1->GetDataUnchecked(row,iCol+1+iCol1,iTime);
712 track[2] = fTrack2->GetDataUnchecked(row,iCol+1+iCol1,iTime);
714 fTrk->AddCluster(iCol+1+iCol1,iTime,amp,track);
722 fTrk->CookLabel(0.8);
724 if (fTrk->GetLabel() >= fNPrimary) {
725 Info("AddTracklet","Only primaries are stored!");
730 fTrk->MakeTrackletGraph(fGeo,fField);
731 fTrk->MakeClusAmpGraph();
732 if (TMath::Abs(fTrk->GetPt()) < AliTRDtrigParam::Instance()->GetLtuPtCut()) {
736 Tracklets()->Add(fTrk);
740 //_____________________________________________________________________________
741 Bool_t AliTRDtrigger::WriteTracklets(Int_t det)
744 // Fills TRDmcmTracklet branch in the tree with the Tracklets
745 // found in detector = det. For det=-1 writes the tree.
748 if ((det < -1) || (det >= AliTRDgeometry::Ndet())) {
749 AliError(Form("Unexpected detector index %d.",det));
753 TBranch *branch = fTrackletTree->GetBranch("TRDmcmTracklet");
755 TObjArray *ioArray = 0;
756 branch = fTrackletTree->Branch("TRDmcmTracklet","TObjArray",&ioArray,32000,0);
759 if ((det >= 0) && (det < AliTRDgeometry::Ndet())) {
761 Int_t nTracklets = Tracklets()->GetEntriesFast();
762 TObjArray *detTracklets = new TObjArray(400);
764 for (Int_t i = 0; i < nTracklets; i++) {
766 AliTRDmcmTracklet *trk = (AliTRDmcmTracklet *) Tracklets()->UncheckedAt(i);
768 if (det == trk->GetDetector()) {
769 detTracklets->AddLast(trk);
774 branch->SetAddress(&detTracklets);
775 fTrackletTree->Fill();
785 AliInfo(Form("Writing the Tracklet tree %s for event %d."
786 ,fTrackletTree->GetName(),fRunLoader->GetEventNumber()));
788 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
789 loader->WriteTracks("OVERWRITE");
799 //_____________________________________________________________________________
800 void AliTRDtrigger::MakeTracks(Int_t det)
803 // Create GTU tracks per module (stack of 6 chambers)
808 Int_t nRowMax, iplan, icham, isect, row;
810 if ((det < 0) || (det >= AliTRDgeometry::Ndet())) {
811 AliError(Form("Unexpected detector index %d.",det));
815 Int_t nTracklets = Tracklets()->GetEntriesFast();
817 AliTRDmcmTracklet *trk;
818 for (Int_t i = 0; i < nTracklets; i++) {
820 trk = (AliTRDmcmTracklet *) Tracklets()->UncheckedAt(i);
822 iplan = fGeo->GetPlane(trk->GetDetector());
823 icham = fGeo->GetChamber(trk->GetDetector());
824 isect = fGeo->GetSector(trk->GetDetector());
826 nRowMax = fGeo->GetRowMax(iplan,icham,isect);
829 fModule->AddTracklet(trk->GetDetector(),
841 fModule->SortTracklets();
842 fModule->RemoveMultipleTracklets();
843 fModule->SortZ((Int_t)fGeo->GetChamber(det));
844 fModule->FindTracks();
845 fModule->SortTracks();
846 fModule->RemoveMultipleTracks();
848 Int_t nModTracks = fModule->GetNtracks();
849 AliTRDgtuTrack *gtutrk;
850 for (Int_t i = 0; i < nModTracks; i++) {
851 gtutrk = (AliTRDgtuTrack*)fModule->GetTrack(i);
852 if (TMath::Abs(gtutrk->GetPt()) < AliTRDtrigParam::Instance()->GetGtuPtCut()) continue;
855 AddTrack(gtutrk,det);
860 //_____________________________________________________________________________
861 void AliTRDtrigger::AddTrack(const AliTRDgtuTrack *t, Int_t det)
864 // Add a track to the list
867 AliTRDgtuTrack *track = new(fTracks->operator[](fTracks->GetEntriesFast()))
869 track->SetDetector(det);
873 //_____________________________________________________________________________
874 TObjArray* AliTRDtrigger::Tracklets()
877 // Returns list of tracklets
881 fTracklets = new TObjArray(400);
887 //_____________________________________________________________________________
888 void AliTRDtrigger::ResetTracklets()
891 // Resets the list of tracklets
895 fTracklets->Delete();
900 //_____________________________________________________________________________
901 Int_t AliTRDtrigger::GetNumberOfTracks() const
904 // Returns number of tracks
907 return fTracks->GetEntriesFast();
911 //_____________________________________________________________________________
912 AliTRDgtuTrack* AliTRDtrigger::GetTrack(Int_t i) const
915 // Returns a given track from the list
918 return (AliTRDgtuTrack *) fTracks->UncheckedAt(i);