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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // TRD cluster finder //
22 ///////////////////////////////////////////////////////////////////////////////
24 #include <TClonesArray.h>
25 #include <TObjArray.h>
27 #include "AliRunLoader.h"
28 #include "AliLoader.h"
29 #include "AliAlignObj.h"
31 #include "AliTRDclusterizer.h"
32 #include "AliTRDcluster.h"
33 #include "AliTRDReconstructor.h"
34 #include "AliTRDgeometry.h"
35 #include "AliTRDarrayDictionary.h"
36 #include "AliTRDarrayADC.h"
37 #include "AliTRDdigitsManager.h"
38 #include "AliTRDdigitsParam.h"
39 #include "AliTRDrawData.h"
40 #include "AliTRDcalibDB.h"
41 #include "AliTRDtransform.h"
42 #include "AliTRDSignalIndex.h"
43 #include "AliTRDrawStreamBase.h"
44 #include "AliTRDfeeParam.h"
45 #include "AliTRDtrackletWord.h"
47 #include "TTreeStream.h"
49 #include "Cal/AliTRDCalROC.h"
50 #include "Cal/AliTRDCalDet.h"
51 #include "Cal/AliTRDCalSingleChamberStatus.h"
53 ClassImp(AliTRDclusterizer)
55 //_____________________________________________________________________________
56 AliTRDclusterizer::AliTRDclusterizer(const AliTRDReconstructor *const rec)
64 ,fDigitsManager(new AliTRDdigitsManager())
65 ,fTrackletContainer(NULL)
67 ,fTransform(new AliTRDtransform(0))
73 ,fMinLeftRightCutSigma(0)
79 ,fCalGainFactorROC(NULL)
80 ,fCalGainFactorDetValue(0)
83 ,fCalPadStatusROC(NULL)
91 // AliTRDclusterizer default constructor
94 SetBit(kLabels, kTRUE);
95 SetBit(knewDM, kFALSE);
97 AliTRDcalibDB *trd = 0x0;
98 if (!(trd = AliTRDcalibDB::Instance())) {
99 AliFatal("Could not get calibration object");
102 fRawVersion = AliTRDfeeParam::Instance()->GetRAWversion();
104 // Initialize debug stream
106 if(fReconstructor->GetRecoParam()->GetStreamLevel(AliTRDrecoParam::kClusterizer) > 1){
107 TDirectory *savedir = gDirectory;
108 //fgGetDebugStream = new TTreeSRedirector("TRD.ClusterizerDebug.root");
115 //_____________________________________________________________________________
116 AliTRDclusterizer::AliTRDclusterizer(const Text_t *name, const Text_t *title, const AliTRDReconstructor *const rec)
124 ,fDigitsManager(new AliTRDdigitsManager())
125 ,fTrackletContainer(NULL)
127 ,fTransform(new AliTRDtransform(0))
133 ,fMinLeftRightCutSigma(0)
139 ,fCalGainFactorROC(NULL)
140 ,fCalGainFactorDetValue(0)
142 ,fCalNoiseDetValue(0)
143 ,fCalPadStatusROC(NULL)
151 // AliTRDclusterizer constructor
154 SetBit(kLabels, kTRUE);
155 SetBit(knewDM, kFALSE);
157 AliTRDcalibDB *trd = 0x0;
158 if (!(trd = AliTRDcalibDB::Instance())) {
159 AliFatal("Could not get calibration object");
162 fDigitsManager->CreateArrays();
164 fRawVersion = AliTRDfeeParam::Instance()->GetRAWversion();
170 //_____________________________________________________________________________
171 AliTRDclusterizer::AliTRDclusterizer(const AliTRDclusterizer &c)
173 ,fReconstructor(c.fReconstructor)
179 ,fDigitsManager(NULL)
180 ,fTrackletContainer(NULL)
188 ,fMinLeftRightCutSigma(0)
194 ,fCalGainFactorROC(NULL)
195 ,fCalGainFactorDetValue(0)
197 ,fCalNoiseDetValue(0)
198 ,fCalPadStatusROC(NULL)
206 // AliTRDclusterizer copy constructor
209 SetBit(kLabels, kTRUE);
210 SetBit(knewDM, kFALSE);
216 //_____________________________________________________________________________
217 AliTRDclusterizer::~AliTRDclusterizer()
220 // AliTRDclusterizer destructor
223 if (fRecPoints/* && IsClustersOwner()*/){
224 fRecPoints->Delete();
229 fTracklets->Delete();
233 if (fDigitsManager) {
234 delete fDigitsManager;
235 fDigitsManager = NULL;
238 if (fTrackletContainer){
239 delete [] fTrackletContainer[0];
240 delete [] fTrackletContainer[1];
241 delete [] fTrackletContainer;
242 fTrackletContainer = NULL;
257 //_____________________________________________________________________________
258 AliTRDclusterizer &AliTRDclusterizer::operator=(const AliTRDclusterizer &c)
261 // Assignment operator
266 ((AliTRDclusterizer &) c).Copy(*this);
273 //_____________________________________________________________________________
274 void AliTRDclusterizer::Copy(TObject &c) const
280 ((AliTRDclusterizer &) c).fClusterTree = NULL;
281 ((AliTRDclusterizer &) c).fRecPoints = NULL;
282 ((AliTRDclusterizer &) c).fTrackletTree = NULL;
283 ((AliTRDclusterizer &) c).fDigitsManager = NULL;
284 ((AliTRDclusterizer &) c).fTrackletContainer = NULL;
285 ((AliTRDclusterizer &) c).fRawVersion = fRawVersion;
286 ((AliTRDclusterizer &) c).fTransform = NULL;
287 ((AliTRDclusterizer &) c).fDigits = NULL;
288 ((AliTRDclusterizer &) c).fIndexes = NULL;
289 ((AliTRDclusterizer &) c).fMaxThresh = 0;
290 ((AliTRDclusterizer &) c).fSigThresh = 0;
291 ((AliTRDclusterizer &) c).fMinMaxCutSigma= 0;
292 ((AliTRDclusterizer &) c).fMinLeftRightCutSigma = 0;
293 ((AliTRDclusterizer &) c).fLayer = 0;
294 ((AliTRDclusterizer &) c).fDet = 0;
295 ((AliTRDclusterizer &) c).fVolid = 0;
296 ((AliTRDclusterizer &) c).fColMax = 0;
297 ((AliTRDclusterizer &) c).fTimeTotal = 0;
298 ((AliTRDclusterizer &) c).fCalGainFactorROC = NULL;
299 ((AliTRDclusterizer &) c).fCalGainFactorDetValue = 0;
300 ((AliTRDclusterizer &) c).fCalNoiseROC = NULL;
301 ((AliTRDclusterizer &) c).fCalNoiseDetValue = 0;
302 ((AliTRDclusterizer &) c).fCalPadStatusROC = NULL;
303 ((AliTRDclusterizer &) c).fClusterROC = 0;
304 ((AliTRDclusterizer &) c).firstClusterROC= 0;
305 ((AliTRDclusterizer &) c).fNoOfClusters = 0;
306 ((AliTRDclusterizer &) c).fBaseline = 0;
307 ((AliTRDclusterizer &) c).fRawStream = NULL;
311 //_____________________________________________________________________________
312 Bool_t AliTRDclusterizer::Open(const Char_t *name, Int_t nEvent)
315 // Opens the AliROOT file. Output and input are in the same file
318 TString evfoldname = AliConfig::GetDefaultEventFolderName();
319 fRunLoader = AliRunLoader::GetRunLoader(evfoldname);
322 fRunLoader = AliRunLoader::Open(name);
326 AliError(Form("Can not open session for file %s.",name));
337 //_____________________________________________________________________________
338 Bool_t AliTRDclusterizer::OpenOutput()
341 // Open the output file
344 if (!fReconstructor->IsWritingClusters()) return kTRUE;
346 TObjArray *ioArray = 0x0;
348 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
349 loader->MakeTree("R");
351 fClusterTree = loader->TreeR();
352 fClusterTree->Branch("TRDcluster", "TObjArray", &ioArray, 32000, 0);
358 //_____________________________________________________________________________
359 Bool_t AliTRDclusterizer::OpenOutput(TTree *const clusterTree)
362 // Connect the output tree
366 if (fReconstructor->IsWritingClusters()){
367 TObjArray *ioArray = 0x0;
368 fClusterTree = clusterTree;
369 fClusterTree->Branch("TRDcluster", "TObjArray", &ioArray, 32000, 0);
374 //_____________________________________________________________________________
375 Bool_t AliTRDclusterizer::OpenTrackletOutput()
381 if (fReconstructor->IsWritingTracklets()){
382 TString evfoldname = AliConfig::GetDefaultEventFolderName();
383 fRunLoader = AliRunLoader::GetRunLoader(evfoldname);
386 fRunLoader = AliRunLoader::Open("galice.root");
389 AliError(Form("Can not open session for file galice.root."));
393 UInt_t **leaves = new UInt_t *[2];
394 AliDataLoader *dl = fRunLoader->GetLoader("TRDLoader")->GetDataLoader("tracklets");
396 AliError("Could not get the tracklets data loader!");
397 dl = new AliDataLoader("TRD.Tracklets.root","tracklets", "tracklets");
398 fRunLoader->GetLoader("TRDLoader")->AddDataLoader(dl);
400 fTrackletTree = dl->Tree();
404 fTrackletTree = dl->Tree();
406 TBranch *trkbranch = fTrackletTree->GetBranch("trkbranch");
408 fTrackletTree->Branch("trkbranch",leaves[0],"det/i:side/i:tracklets[256]/i");
414 //_____________________________________________________________________________
415 Bool_t AliTRDclusterizer::OpenInput(Int_t nEvent)
418 // Opens a ROOT-file with TRD-hits and reads in the digits-tree
421 // Import the Trees for the event nEvent in the file
422 fRunLoader->GetEvent(nEvent);
428 //_____________________________________________________________________________
429 Bool_t AliTRDclusterizer::WriteClusters(Int_t det)
432 // Fills TRDcluster branch in the tree with the clusters
433 // found in detector = det. For det=-1 writes the tree.
437 (det >= AliTRDgeometry::Ndet())) {
438 AliError(Form("Unexpected detector index %d.\n",det));
442 TObjArray *ioArray = new TObjArray(400);
443 TBranch *branch = fClusterTree->GetBranch("TRDcluster");
445 branch = fClusterTree->Branch("TRDcluster","TObjArray",&ioArray,32000,0);
446 } else branch->SetAddress(&ioArray);
448 Int_t nRecPoints = RecPoints()->GetEntriesFast();
450 for (Int_t i = 0; i < nRecPoints; i++) {
451 AliTRDcluster *c = (AliTRDcluster *) RecPoints()->UncheckedAt(i);
452 if(det != c->GetDetector()) continue;
455 fClusterTree->Fill();
458 Int_t detOld = -1, nw(0);
459 for (Int_t i = 0; i < nRecPoints; i++) {
460 AliTRDcluster *c = (AliTRDcluster *) RecPoints()->UncheckedAt(i);
461 if(c->GetDetector() != detOld){
462 nw += ioArray->GetEntriesFast();
463 fClusterTree->Fill();
465 detOld = c->GetDetector();
469 if(ioArray->GetEntriesFast()){
470 nw += ioArray->GetEntriesFast();
471 fClusterTree->Fill();
474 AliDebug(2, Form("Clusters FOUND[%d] WRITTEN[%d] STATUS[%s]", nRecPoints, nw, nw==nRecPoints?"OK":"FAILED"));
481 //_____________________________________________________________________________
482 Bool_t AliTRDclusterizer::WriteTracklets(Int_t det)
485 // Write the raw data tracklets into seperate file
488 UInt_t **leaves = new UInt_t *[2];
489 for (Int_t i=0; i<2 ;i++){
490 leaves[i] = new UInt_t[258];
491 leaves[i][0] = det; // det
492 leaves[i][1] = i; // side
493 memcpy(leaves[i]+2, fTrackletContainer[i], sizeof(UInt_t) * 256);
497 AliDataLoader *dl = fRunLoader->GetLoader("TRDLoader")->GetDataLoader("tracklets");
499 fTrackletTree = dl->Tree();
502 TBranch *trkbranch = fTrackletTree->GetBranch("trkbranch");
504 trkbranch = fTrackletTree->Branch("trkbranch",leaves[0],"det/i:side/i:tracklets[256]/i");
507 for (Int_t i=0; i<2; i++){
508 if (leaves[i][2]>0) {
509 trkbranch->SetAddress(leaves[i]);
510 fTrackletTree->Fill();
514 AliDataLoader *dl = fRunLoader->GetLoader("TRDLoader")->GetDataLoader("tracklets");
515 dl->WriteData("OVERWRITE");
523 //_____________________________________________________________________________
524 Bool_t AliTRDclusterizer::ReadDigits()
527 // Reads the digits arrays from the input aliroot file
531 AliError("No run loader available");
535 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
536 if (!loader->TreeD()) {
537 loader->LoadDigits();
540 // Read in the digit arrays
541 return (fDigitsManager->ReadDigits(loader->TreeD()));
545 //_____________________________________________________________________________
546 Bool_t AliTRDclusterizer::ReadDigits(TTree *digitsTree)
549 // Reads the digits arrays from the input tree
552 // Read in the digit arrays
553 return (fDigitsManager->ReadDigits(digitsTree));
557 //_____________________________________________________________________________
558 Bool_t AliTRDclusterizer::ReadDigits(AliRawReader *rawReader)
561 // Reads the digits arrays from the ddl file
565 fDigitsManager = raw.Raw2Digits(rawReader);
571 //_____________________________________________________________________________
572 Bool_t AliTRDclusterizer::MakeClusters()
575 // Creates clusters from digits
578 // Propagate info from the digits manager
579 if (TestBit(kLabels)){
580 SetBit(kLabels, fDigitsManager->UsesDictionaries());
583 Bool_t fReturn = kTRUE;
584 for (Int_t i = 0; i < AliTRDgeometry::kNdet; i++){
586 AliTRDarrayADC *digitsIn = (AliTRDarrayADC*) fDigitsManager->GetDigits(i); //mod
587 // This is to take care of switched off super modules
588 if (!digitsIn->HasData()) continue;
590 digitsIn->DeleteNegatives(); // Restore digits array to >=0 values
591 AliTRDSignalIndex* indexes = fDigitsManager->GetIndexes(i);
592 if (indexes->IsAllocated() == kFALSE){
593 fDigitsManager->BuildIndexes(i);
597 if (indexes->HasEntry()){
598 if (TestBit(kLabels)){
599 for (Int_t iDict = 0; iDict < AliTRDdigitsManager::kNDict; iDict++){
600 AliTRDarrayDictionary *tracksIn = 0; //mod
601 tracksIn = (AliTRDarrayDictionary *) fDigitsManager->GetDictionary(i,iDict); //mod
605 fR = MakeClusters(i);
606 fReturn = fR && fReturn;
610 // if(IsWritingClusters()) WriteClusters(i);
614 // No compress just remove
615 fDigitsManager->RemoveDigits(i);
616 fDigitsManager->RemoveDictionaries(i);
617 fDigitsManager->ClearIndexes(i);
619 fReconstructor->SetDigitsParam(fDigitsManager->GetDigitsParam());
621 if(fReconstructor->IsWritingClusters()) WriteClusters(-1);
623 AliInfo(Form("Number of found clusters : %d", RecPoints()->GetEntriesFast()));
629 //_____________________________________________________________________________
630 Bool_t AliTRDclusterizer::Raw2Clusters(AliRawReader *rawReader)
633 // Creates clusters from raw data
636 return Raw2ClustersChamber(rawReader);
640 //_____________________________________________________________________________
641 Bool_t AliTRDclusterizer::Raw2ClustersChamber(AliRawReader *rawReader)
644 // Creates clusters from raw data
647 // Create the digits manager
648 if (!fDigitsManager){
649 SetBit(knewDM, kTRUE);
650 fDigitsManager = new AliTRDdigitsManager(kTRUE);
651 fDigitsManager->CreateArrays();
654 fDigitsManager->SetUseDictionaries(TestBit(kLabels));
656 // tracklet container for raw tracklet writing
657 if (!fTrackletContainer && ( fReconstructor->IsWritingTracklets() || fReconstructor->IsProcessingTracklets() )) {
658 // maximum tracklets for one HC
659 const Int_t kTrackletChmb=256;
660 fTrackletContainer = new UInt_t *[2];
661 fTrackletContainer[0] = new UInt_t[kTrackletChmb];
662 fTrackletContainer[1] = new UInt_t[kTrackletChmb];
666 fRawStream = AliTRDrawStreamBase::GetRawStream(rawReader);
668 fRawStream->SetReader(rawReader);
670 if(fReconstructor->IsHLT()){
671 fRawStream->SetSharedPadReadout(kFALSE);
672 fRawStream->SetNoErrorWarning();
675 AliDebug(1,Form("Stream version: %s", fRawStream->IsA()->GetName()));
678 while ((det = fRawStream->NextChamber(fDigitsManager,fTrackletContainer)) >= 0){
679 Bool_t iclusterBranch = kFALSE;
680 if (fDigitsManager->GetIndexes(det)->HasEntry()){
681 iclusterBranch = MakeClusters(det);
684 fDigitsManager->ClearArrays(det);
686 if (!fReconstructor->IsWritingTracklets()) continue;
687 if (*(fTrackletContainer[0]) > 0 || *(fTrackletContainer[1]) > 0) WriteTracklets(det);
689 fReconstructor->SetDigitsParam(fDigitsManager->GetDigitsParam());
691 if (fTrackletContainer){
692 delete [] fTrackletContainer[0];
693 delete [] fTrackletContainer[1];
694 delete [] fTrackletContainer;
695 fTrackletContainer = NULL;
698 if(fReconstructor->IsWritingClusters()) WriteClusters(-1);
700 if(!TestBit(knewDM)){
701 delete fDigitsManager;
702 fDigitsManager = NULL;
707 AliInfo(Form("Number of found clusters : %d", fNoOfClusters));
712 //_____________________________________________________________________________
713 UChar_t AliTRDclusterizer::GetStatus(Short_t &signal)
716 // Check if a pad is masked
721 if(signal>0 && TESTBIT(signal, 10)){
723 for(int ibit=0; ibit<4; ibit++){
724 if(TESTBIT(signal, 11+ibit)){
725 SETBIT(status, ibit);
726 CLRBIT(signal, 11+ibit);
733 //_____________________________________________________________________________
734 void AliTRDclusterizer::SetPadStatus(const UChar_t status, UChar_t &out) const {
736 // Set the pad status into out
737 // First three bits are needed for the position encoding
742 //_____________________________________________________________________________
743 UChar_t AliTRDclusterizer::GetPadStatus(UChar_t encoding) const {
745 // return the staus encoding of the corrupted pad
747 return static_cast<UChar_t>(encoding >> 3);
750 //_____________________________________________________________________________
751 Int_t AliTRDclusterizer::GetCorruption(UChar_t encoding) const {
753 // Return the position of the corruption
758 //_____________________________________________________________________________
759 Bool_t AliTRDclusterizer::MakeClusters(Int_t det)
762 // Generates the cluster.
766 fDigits = (AliTRDarrayADC *) fDigitsManager->GetDigits(det); //mod
767 fBaseline = fDigitsManager->GetDigitsParam()->GetADCbaseline();
769 // This is to take care of switched off super modules
770 if (!fDigits->HasData()) return kFALSE;
772 fIndexes = fDigitsManager->GetIndexes(det);
773 if (fIndexes->IsAllocated() == kFALSE) {
774 AliError("Indexes do not exist!");
778 AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
780 AliFatal("No AliTRDcalibDB instance available\n");
784 if (!fReconstructor){
785 AliError("Reconstructor not set\n");
789 fMaxThresh = fReconstructor->GetRecoParam()->GetClusMaxThresh();
790 fSigThresh = fReconstructor->GetRecoParam()->GetClusSigThresh();
791 fMinMaxCutSigma = fReconstructor->GetRecoParam()->GetMinMaxCutSigma();
792 fMinLeftRightCutSigma = fReconstructor->GetRecoParam()->GetMinLeftRightCutSigma();
794 Int_t istack = fIndexes->GetStack();
795 fLayer = fIndexes->GetLayer();
796 Int_t isector = fIndexes->GetSM();
798 // Start clustering in the chamber
800 fDet = AliTRDgeometry::GetDetector(fLayer,istack,isector);
802 AliError("Strange Detector number Missmatch!");
806 AliDebug(2, Form("Det[%d] @ Sec[%d] Stk[%d] Ly[%d]", fDet, isector, istack, fLayer));
808 // TRD space point transformation
809 fTransform->SetDetector(det);
811 Int_t iGeoLayer = AliGeomManager::kTRD1 + fLayer;
812 Int_t iGeoModule = istack + AliTRDgeometry::Nstack() * isector;
813 fVolid = AliGeomManager::LayerToVolUID(iGeoLayer,iGeoModule);
815 if(fReconstructor->IsProcessingTracklets() && fTrackletContainer)
816 AddTrackletsToArray();
818 fColMax = fDigits->GetNcol();
819 //Int_t nRowMax = fDigits->GetNrow();
820 fTimeTotal = fDigits->GetNtime();
822 // Check consistency between OCDB and raw data
823 Int_t nTimeOCDB = calibration->GetNumberOfTimeBinsDCS();
824 if ((nTimeOCDB > -1) &&
825 (fTimeTotal != nTimeOCDB)) {
826 AliError(Form("Number of timebins does not match OCDB value (RAW[%d] OCDB[%d])"
827 ,fTimeTotal,calibration->GetNumberOfTimeBinsDCS()));
830 // Detector wise calibration object for the gain factors
831 const AliTRDCalDet *calGainFactorDet = calibration->GetGainFactorDet();
832 // Calibration object with pad wise values for the gain factors
833 fCalGainFactorROC = calibration->GetGainFactorROC(fDet);
834 // Calibration value for chamber wise gain factor
835 fCalGainFactorDetValue = calGainFactorDet->GetValue(fDet);
837 // Detector wise calibration object for the noise
838 const AliTRDCalDet *calNoiseDet = calibration->GetNoiseDet();
839 // Calibration object with pad wise values for the noise
840 fCalNoiseROC = calibration->GetNoiseROC(fDet);
841 // Calibration value for chamber wise noise
842 fCalNoiseDetValue = calNoiseDet->GetValue(fDet);
844 // Calibration object with the pad status
845 fCalPadStatusROC = calibration->GetPadStatusROC(fDet);
847 SetBit(kLUT, fReconstructor->GetRecoParam()->UseLUT());
848 SetBit(kGAUS, fReconstructor->GetRecoParam()->UseGAUS());
849 SetBit(kHLT, fReconstructor->IsHLT());
851 firstClusterROC = -1;
854 // Apply the gain and the tail cancelation via digital filter
855 if(fReconstructor->GetRecoParam()->UseTailCancelation()) TailCancelation();
857 MaxStruct curr, last;
858 Int_t nMaximas = 0, nCorrupted = 0;
860 // Here the clusterfining is happening
862 for(curr.time = 0; curr.time < fTimeTotal; curr.time++){
863 while(fIndexes->NextRCIndex(curr.row, curr.col)){
864 if(IsMaximum(curr, curr.padStatus, &curr.signals[0])){
866 if(curr.time==last.time && curr.row==last.row && curr.col==last.col+2) FivePadCluster(last, curr);
869 last=curr; curr.fivePad=kFALSE;
873 if(last.row>-1) CreateCluster(last);
875 if(fReconstructor->GetRecoParam()->GetStreamLevel(AliTRDrecoParam::kClusterizer) > 2 && fReconstructor->IsDebugStreaming()){
876 TTreeSRedirector* fDebugStream = fReconstructor->GetDebugStream(AliTRDrecoParam::kClusterizer);
877 (*fDebugStream) << "MakeClusters"
878 << "Detector=" << det
879 << "NMaxima=" << nMaximas
880 << "NClusters=" << fClusterROC
881 << "NCorrupted=" << nCorrupted
884 if (TestBit(kLabels)) AddLabels();
890 //_____________________________________________________________________________
891 Bool_t AliTRDclusterizer::IsMaximum(const MaxStruct &Max, UChar_t &padStatus, Short_t *const Signals)
894 // Returns true if this row,col,time combination is a maximum.
895 // Gives back the padStatus and the signals of the center pad and the two neighbouring pads.
898 Float_t gain = fCalGainFactorDetValue * fCalGainFactorROC->GetValue(Max.col,Max.row);
899 Signals[1] = (Short_t)((fDigits->GetData(Max.row, Max.col, Max.time) - fBaseline) / gain + 0.5f);
900 if(Signals[1] < fMaxThresh) return kFALSE;
902 Float_t noiseMiddleThresh = fMinMaxCutSigma*fCalNoiseDetValue*fCalNoiseROC->GetValue(Max.col, Max.row);
903 if (Signals[1] < noiseMiddleThresh) return kFALSE;
905 if (Max.col + 1 >= fColMax || Max.col < 1) return kFALSE;
908 fCalPadStatusROC->GetStatus(Max.col-1, Max.row)
909 ,fCalPadStatusROC->GetStatus(Max.col, Max.row)
910 ,fCalPadStatusROC->GetStatus(Max.col+1, Max.row)
913 gain = fCalGainFactorDetValue * fCalGainFactorROC->GetValue(Max.col-1,Max.row);
914 Signals[0] = (Short_t)((fDigits->GetData(Max.row, Max.col-1, Max.time) - fBaseline) / gain + 0.5f);
915 gain = fCalGainFactorDetValue * fCalGainFactorROC->GetValue(Max.col+1,Max.row);
916 Signals[2] = (Short_t)((fDigits->GetData(Max.row, Max.col+1, Max.time) - fBaseline) / gain + 0.5f);
918 if(!(status[0] | status[1] | status[2])) {//all pads are good
919 if ((Signals[2] <= Signals[1]) && (Signals[0] < Signals[1])) {
920 if ((Signals[2] >= fSigThresh) || (Signals[0] >= fSigThresh)) {
921 if(Signals[0]<0)Signals[0]=0;
922 if(Signals[2]<0)Signals[2]=0;
923 Float_t noiseSumThresh = fMinLeftRightCutSigma
925 * fCalNoiseROC->GetValue(Max.col, Max.row);
926 if ((Signals[2]+Signals[0]+Signals[1]) < noiseSumThresh) return kFALSE;
931 } else { // at least one of the pads is bad, and reject candidates with more than 1 problematic pad
932 if(Signals[0]<0)Signals[0]=0;
933 if(Signals[2]<0)Signals[2]=0;
934 if (status[2] && (!(status[0] || status[1])) && Signals[1] > Signals[0] && Signals[0] >= fSigThresh) {
936 SetPadStatus(status[2], padStatus);
939 else if (status[0] && (!(status[1] || status[2])) && Signals[1] >= Signals[2] && Signals[2] >= fSigThresh) {
941 SetPadStatus(status[0], padStatus);
944 else if (status[1] && (!(status[0] || status[2])) && ((Signals[2] >= fSigThresh) || (Signals[0] >= fSigThresh))) {
945 Signals[1] = (Short_t)(fMaxThresh + 0.5f);
946 SetPadStatus(status[1], padStatus);
953 //_____________________________________________________________________________
954 Bool_t AliTRDclusterizer::FivePadCluster(MaxStruct &ThisMax, MaxStruct &NeighbourMax)
957 // Look for 5 pad cluster with minimum in the middle
958 // Gives back the ratio
961 if (ThisMax.col >= fColMax - 3) return kFALSE;
963 if (ThisMax.col < fColMax - 5){
964 gain = fCalGainFactorDetValue * fCalGainFactorROC->GetValue(ThisMax.col+4,ThisMax.row);
965 if (fDigits->GetData(ThisMax.row, ThisMax.col+4, ThisMax.time) - fBaseline >= fSigThresh * gain)
968 if (ThisMax.col > 1) {
969 gain = fCalGainFactorDetValue * fCalGainFactorROC->GetValue(ThisMax.col-2,ThisMax.row);
970 if (fDigits->GetData(ThisMax.row, ThisMax.col-2, ThisMax.time) - fBaseline >= fSigThresh * gain)
974 const Float_t kEpsilon = 0.01;
975 Double_t padSignal[5] = {ThisMax.signals[0], ThisMax.signals[1], ThisMax.signals[2],
976 NeighbourMax.signals[1], NeighbourMax.signals[2]};
978 // Unfold the two maxima and set the signal on
979 // the overlapping pad to the ratio
980 Float_t ratio = Unfold(kEpsilon,fLayer,padSignal);
981 ThisMax.signals[2] = (Short_t)(ThisMax.signals[2]*ratio + 0.5f);
982 NeighbourMax.signals[0] = (Short_t)(NeighbourMax.signals[0]*(1-ratio) + 0.5f);
983 ThisMax.fivePad=kTRUE;
984 NeighbourMax.fivePad=kTRUE;
989 //_____________________________________________________________________________
990 void AliTRDclusterizer::CreateCluster(const MaxStruct &Max)
993 // Creates a cluster at the given position and saves it in fRecPoints
997 Short_t signals[7] = { 0, 0, Max.signals[0], Max.signals[1], Max.signals[2], 0, 0 };
998 if(!TestBit(kHLT)) CalcAdditionalInfo(Max, signals, nPadCount);
1000 AliTRDcluster cluster(fDet, ((UChar_t) Max.col), ((UChar_t) Max.row), ((UChar_t) Max.time), signals, fVolid);
1001 cluster.SetNPads(nPadCount);
1002 if(TestBit(kLUT)) cluster.SetRPhiMethod(AliTRDcluster::kLUT);
1003 else if(TestBit(kGAUS)) cluster.SetRPhiMethod(AliTRDcluster::kGAUS);
1004 else cluster.SetRPhiMethod(AliTRDcluster::kCOG);
1006 cluster.SetFivePad(Max.fivePad);
1007 // set pads status for the cluster
1008 UChar_t maskPosition = GetCorruption(Max.padStatus);
1010 cluster.SetPadMaskedPosition(maskPosition);
1011 cluster.SetPadMaskedStatus(GetPadStatus(Max.padStatus));
1014 // Transform the local cluster coordinates into calibrated
1015 // space point positions defined in the local tracking system.
1016 // Here the calibration for T0, Vdrift and ExB is applied as well.
1017 if(!fTransform->Transform(&cluster)) return;
1018 // Temporarily store the Max.Row, column and time bin of the center pad
1019 // Used to later on assign the track indices
1020 cluster.SetLabel(Max.row, 0);
1021 cluster.SetLabel(Max.col, 1);
1022 cluster.SetLabel(Max.time,2);
1024 //needed for HLT reconstruction
1025 AddClusterToArray(&cluster);
1027 // Store the index of the first cluster in the current ROC
1028 if (firstClusterROC < 0) firstClusterROC = fNoOfClusters;
1034 //_____________________________________________________________________________
1035 void AliTRDclusterizer::CalcAdditionalInfo(const MaxStruct &Max, Short_t *const signals, Int_t &nPadCount)
1037 // Look to the right
1039 while (fDigits->GetData(Max.row, Max.col-ii, Max.time) >= fSigThresh) {
1042 if (Max.col < ii) break;
1046 while (fDigits->GetData(Max.row, Max.col+ii, Max.time) >= fSigThresh) {
1049 if (Max.col+ii >= fColMax) break;
1052 // Store the amplitudes of the pads in the cluster for later analysis
1053 // and check whether one of these pads is masked in the database
1054 signals[2]=Max.signals[0];
1055 signals[3]=Max.signals[1];
1056 signals[4]=Max.signals[2];
1058 for(Int_t i = 0; i<2; i++)
1061 gain = fCalGainFactorDetValue * fCalGainFactorROC->GetValue(Max.col-3+i,Max.row);
1062 signals[i] = (Short_t)((fDigits->GetData(Max.row, Max.col-3+i, Max.time) - fBaseline) / gain + 0.5f);
1064 if(Max.col+3-i < fColMax){
1065 gain = fCalGainFactorDetValue * fCalGainFactorROC->GetValue(Max.col+3-i,Max.row);
1066 signals[6-i] = (Short_t)((fDigits->GetData(Max.row, Max.col+3-i, Max.time) - fBaseline) / gain + 0.5f);
1069 /*for (Int_t jPad = Max.Col-3; jPad <= Max.Col+3; jPad++) {
1070 if ((jPad >= 0) && (jPad < fColMax))
1071 signals[jPad-Max.Col+3] = TMath::Nint(fDigits->GetData(Max.Row,jPad,Max.Time));
1075 //_____________________________________________________________________________
1076 void AliTRDclusterizer::AddClusterToArray(AliTRDcluster* cluster)
1079 // Add a cluster to the array
1082 Int_t n = RecPoints()->GetEntriesFast();
1083 if(n!=fNoOfClusters)AliError(Form("fNoOfClusters != RecPoints()->GetEntriesFast %i != %i \n", fNoOfClusters, n));
1084 new((*RecPoints())[n]) AliTRDcluster(*cluster);
1087 //_____________________________________________________________________________
1088 void AliTRDclusterizer::AddTrackletsToArray()
1091 // Add the online tracklets of this chamber to the array
1094 UInt_t* trackletword;
1095 for(Int_t side=0; side<2; side++)
1098 trackletword=fTrackletContainer[side];
1099 while(trackletword[trkl]>0){
1100 Int_t n = TrackletsArray()->GetEntriesFast();
1101 AliTRDtrackletWord tmp(trackletword[trkl]);
1102 new((*TrackletsArray())[n]) AliTRDcluster(&tmp,fDet,fVolid);
1108 //_____________________________________________________________________________
1109 Bool_t AliTRDclusterizer::AddLabels()
1112 // Add the track indices to the found clusters
1115 const Int_t kNclus = 3;
1116 const Int_t kNdict = AliTRDdigitsManager::kNDict;
1117 const Int_t kNtrack = kNdict * kNclus;
1119 Int_t iClusterROC = 0;
1126 // Temporary array to collect the track indices
1127 Int_t *idxTracks = new Int_t[kNtrack*fClusterROC];
1129 // Loop through the dictionary arrays one-by-one
1130 // to keep memory consumption low
1131 AliTRDarrayDictionary *tracksIn = 0; //mod
1132 for (Int_t iDict = 0; iDict < kNdict; iDict++) {
1134 // tracksIn should be expanded beforehand!
1135 tracksIn = (AliTRDarrayDictionary *) fDigitsManager->GetDictionary(fDet,iDict);
1137 // Loop though the clusters found in this ROC
1138 for (iClusterROC = 0; iClusterROC < fClusterROC; iClusterROC++) {
1140 AliTRDcluster *cluster = (AliTRDcluster *)
1141 RecPoints()->UncheckedAt(firstClusterROC+iClusterROC);
1142 row = cluster->GetLabel(0);
1143 col = cluster->GetLabel(1);
1144 time = cluster->GetLabel(2);
1146 for (iPad = 0; iPad < kNclus; iPad++) {
1147 Int_t iPadCol = col - 1 + iPad;
1148 Int_t index = tracksIn->GetData(row,iPadCol,time); //Modification of -1 in Track
1149 idxTracks[3*iPad+iDict + iClusterROC*kNtrack] = index;
1156 // Copy the track indices into the cluster
1157 // Loop though the clusters found in this ROC
1158 for (iClusterROC = 0; iClusterROC < fClusterROC; iClusterROC++) {
1160 AliTRDcluster *cluster = (AliTRDcluster *)
1161 RecPoints()->UncheckedAt(firstClusterROC+iClusterROC);
1162 cluster->SetLabel(-9999,0);
1163 cluster->SetLabel(-9999,1);
1164 cluster->SetLabel(-9999,2);
1166 cluster->AddTrackIndex(&idxTracks[iClusterROC*kNtrack]);
1170 delete [] idxTracks;
1176 //_____________________________________________________________________________
1177 Float_t AliTRDclusterizer::Unfold(Double_t eps, Int_t layer, const Double_t *const padSignal) const
1180 // Method to unfold neighbouring maxima.
1181 // The charge ratio on the overlapping pad is calculated
1182 // until there is no more change within the range given by eps.
1183 // The resulting ratio is then returned to the calling method.
1186 AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
1188 AliError("No AliTRDcalibDB instance available\n");
1193 Int_t itStep = 0; // Count iteration steps
1195 Double_t ratio = 0.5; // Start value for ratio
1196 Double_t prevRatio = 0.0; // Store previous ratio
1198 Double_t newLeftSignal[3] = { 0.0, 0.0, 0.0 }; // Array to store left cluster signal
1199 Double_t newRightSignal[3] = { 0.0, 0.0, 0.0 }; // Array to store right cluster signal
1200 Double_t newSignal[3] = { 0.0, 0.0, 0.0 };
1202 // Start the iteration
1203 while ((TMath::Abs(prevRatio - ratio) > eps) && (itStep < 10)) {
1208 // Cluster position according to charge ratio
1209 Double_t maxLeft = (ratio*padSignal[2] - padSignal[0])
1210 / (padSignal[0] + padSignal[1] + ratio * padSignal[2]);
1211 Double_t maxRight = (padSignal[4] - (1-ratio)*padSignal[2])
1212 / ((1.0 - ratio)*padSignal[2] + padSignal[3] + padSignal[4]);
1214 // Set cluster charge ratio
1215 irc = calibration->PadResponse(1.0, maxLeft, layer, newSignal);
1216 Double_t ampLeft = padSignal[1] / newSignal[1];
1217 irc = calibration->PadResponse(1.0, maxRight, layer, newSignal);
1218 Double_t ampRight = padSignal[3] / newSignal[1];
1220 // Apply pad response to parameters
1221 irc = calibration->PadResponse(ampLeft ,maxLeft ,layer,newLeftSignal );
1222 irc = calibration->PadResponse(ampRight,maxRight,layer,newRightSignal);
1224 // Calculate new overlapping ratio
1225 ratio = TMath::Min((Double_t) 1.0
1226 ,newLeftSignal[2] / (newLeftSignal[2] + newRightSignal[0]));
1234 //_____________________________________________________________________________
1235 void AliTRDclusterizer::TailCancelation()
1238 // Applies the tail cancelation and gain factors:
1239 // Transform fDigits to fDigits
1246 Float_t *arr = new Float_t[fTimeTotal]; // temp array containing the ADC signals
1248 TTreeSRedirector *fDebugStream = fReconstructor->GetDebugStream(AliTRDrecoParam::kClusterizer);
1249 Bool_t debugStreaming = fReconstructor->GetRecoParam()->GetStreamLevel(AliTRDrecoParam::kClusterizer) > 7 && fReconstructor->IsDebugStreaming();
1250 Int_t nexp = fReconstructor->GetRecoParam()->GetTCnexp();
1251 while(fIndexes->NextRCIndex(iRow, iCol))
1253 // if corrupted then don't make the tail cancallation
1254 if (fCalPadStatusROC->GetStatus(iCol, iRow)) continue;
1256 // Save data into the temporary processing array and substract the baseline,
1257 // since DeConvExp does not expect a baseline
1258 for (iTime = 0; iTime < fTimeTotal; iTime++)
1259 arr[iTime] = fDigits->GetData(iRow,iCol,iTime)-fBaseline;
1262 for (iTime = 0; iTime < fTimeTotal; iTime++)
1263 (*fDebugStream) << "TailCancellation"
1267 << "arr=" << arr[iTime]
1271 // Apply the tail cancelation via the digital filter
1272 DeConvExp(arr,fTimeTotal,nexp);
1274 // Save tailcancalled data and add the baseline
1275 for(iTime = 0; iTime < fTimeTotal; iTime++)
1276 fDigits->SetData(iRow,iCol,iTime,(Short_t)(arr[iTime] + fBaseline + 0.5f));
1278 } // while irow icol
1286 //_____________________________________________________________________________
1287 void AliTRDclusterizer::DeConvExp(Float_t *const arr, const Int_t n, const Int_t nexp)
1290 // Tail cancellation by deconvolution for PASA v4 TRF
1294 Float_t coefficients[2];
1296 // Initialization (coefficient = alpha, rates = lambda)
1302 if (nexp == 1) { // 1 Exponentials
1308 if (nexp == 2) { // 2 Exponentials
1310 fReconstructor->GetRecoParam()->GetTCParams(par);
1311 r1 = par[0];//1.156;
1312 r2 = par[1];//0.130;
1313 c1 = par[2];//0.114;
1314 c2 = par[3];//0.624;
1317 coefficients[0] = c1;
1318 coefficients[1] = c2;
1322 rates[0] = TMath::Exp(-dt/(r1));
1323 rates[1] = TMath::Exp(-dt/(r2));
1328 Float_t reminder[2];
1329 Float_t correction = 0.0;
1330 Float_t result = 0.0;
1332 // Attention: computation order is important
1333 for (k = 0; k < nexp; k++) {
1337 for (i = 0; i < n; i++) {
1339 result = (arr[i] - correction); // No rescaling
1342 for (k = 0; k < nexp; k++) {
1343 reminder[k] = rates[k] * (reminder[k] + coefficients[k] * result);
1347 for (k = 0; k < nexp; k++) {
1348 correction += reminder[k];
1355 //_____________________________________________________________________________
1356 void AliTRDclusterizer::ResetRecPoints()
1359 // Resets the list of rec points
1363 fRecPoints->Delete();
1368 //_____________________________________________________________________________
1369 TClonesArray *AliTRDclusterizer::RecPoints()
1372 // Returns the list of rec points
1376 if(!(fRecPoints = AliTRDReconstructor::GetClusters())){
1377 // determine number of clusters which has to be allocated
1378 Float_t nclusters = fReconstructor->GetRecoParam()->GetNClusters();
1380 fRecPoints = new TClonesArray("AliTRDcluster", Int_t(nclusters));
1382 //SetClustersOwner(kTRUE);
1383 AliTRDReconstructor::SetClusters(0x0);
1389 //_____________________________________________________________________________
1390 TClonesArray *AliTRDclusterizer::TrackletsArray()
1393 // Returns the list of rec points
1396 if (!fTracklets && fReconstructor->IsProcessingTracklets()) {
1397 fTracklets = new TClonesArray("AliTRDcluster", 2*MAXTRACKLETSPERHC);
1398 //SetClustersOwner(kTRUE);
1399 //AliTRDReconstructor::SetTracklets(0x0);