+//____________________________________________________________________
+//
+// This is a class that constructs AliFMDRecPoint objects from of Digits
+// This class reads either digits from a TClonesArray or raw data from
+// a DDL file (or similar), and stores the read ADC counts in an
+// internal cache (fAdcs). The rec-points are made via the naiive
+// method.
+//
+//-- Authors: Evgeny Karpechev(INR) and Alla Maevsksia
+// Latest changes by Christian Holm Christensen <cholm@nbi.dk>
+//
+//
+//____________________________________________________________________
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+/**
+ * @file AliFMDReconstructor.cxx
+ * @author Christian Holm Christensen <cholm@nbi.dk>
+ * @date Mon Mar 27 12:47:09 2006
+ * @brief FMD reconstruction
+*/
+
+// #include <AliLog.h> // ALILOG_H
+// #include <AliRun.h> // ALIRUN_H
+#include "AliFMDDebug.h"
+#include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
+#include "AliFMDParameters.h" // ALIFMDPARAMETERS_H
+#include "AliFMDAltroMapping.h" // ALIFMDALTROMAPPING_H
+#include "AliFMDDigit.h" // ALIFMDDIGIT_H
+#include "AliFMDSDigit.h" // ALIFMDDIGIT_H
+#include "AliFMDReconstructor.h" // ALIFMDRECONSTRUCTOR_H
+#include "AliFMDRecoParam.h" // ALIFMDRECOPARAM_H
+#include "AliFMDRawReader.h" // ALIFMDRAWREADER_H
+#include "AliFMDRecPoint.h" // ALIFMDMULTNAIIVE_H
+#include "AliESDEvent.h" // ALIESDEVENT_H
+#include "AliESDVertex.h" // ALIESDVERTEX_H
+#include "AliESDTZERO.h" // ALIESDVERTEX_H
+#include <AliESDFMD.h> // ALIESDFMD_H
+#include <TMath.h>
+#include <TH1.h>
+#include <TH2.h>
+#include <TFile.h>
+#include <climits>
+#include "AliFMDESDRevertexer.h"
-//_________________________________________________________________________
-// This is a class that constructs ReconstParticles (reconstructed particles)
-// out of Digits
-//
-//-- Authors: Evgeny Karpechev(INR) and Alla Maevsksia
-//////////////////////////////////////////////////////////////////////////////
-
-// --- ROOT system ---
-#include "TTask.h"
-#include "TTree.h"
-#include "TSystem.h"
-#include "TFile.h"
-#include "TROOT.h"
-#include "TFolder.h"
-#include "TH2F.h"
-
-// --- Standard library ---
-#include <stdlib.h>
-#include <Riostream.h>
-
-// --- AliRoot header files ---
-
-#include "AliRunLoader.h"
-#include "AliLoader.h"
-
-#include "AliFMDdigit.h"
-#include "AliFMDhit.h"
-#include "AliFMDReconstParticles.h"
-#include "AliFMD.h"
-#include "AliFMDv1.h"
-#include "AliFMDReconstructor.h"
-#include "AliRun.h"
-#include "AliConfig.h"
-#include "AliHeader.h"
-#include "AliGenEventHeader.h"
+class AliRawReader;
+
+//____________________________________________________________________
ClassImp(AliFMDReconstructor)
+#if 0
+ ; // This is here to keep Emacs for indenting the next line
+#endif
+
+//____________________________________________________________________
+AliFMDReconstructor::AliFMDReconstructor()
+ : AliReconstructor(),
+ fMult(0x0),
+ fNMult(0),
+ fTreeR(0x0),
+ fCurrentVertex(0),
+ fESDObj(0x0),
+ fNoiseFactor(0),
+ fAngleCorrect(kTRUE),
+ fVertexType(kNoVertex),
+ fESD(0x0),
+ fDiagnostics(kFALSE),
+ fDiagStep1(0),
+ fDiagStep2(0),
+ fDiagStep3(0),
+ fDiagStep4(0),
+ fDiagAll(0),
+ fBad(0),
+ fZombie(false)
+{
+ // Make a new FMD reconstructor object - default CTOR.
+ SetNoiseFactor();
+ SetAngleCorrect();
+ if (AliDebugLevel() > 0) fDiagnostics = kTRUE;
+ for(Int_t det = 1; det<=3; det++) {
+ fZS[det-1] = kFALSE;
+ fZSFactor[det-1] = 0;
+ }
+}
+
+//____________________________________________________________________
+AliFMDReconstructor::~AliFMDReconstructor()
+{
+ // Destructor
+ if (fMult) fMult->Delete();
+ if (fMult) delete fMult;
+ if (fESDObj) delete fESDObj;
+}
-
-//____________________________________________________________________________
+//____________________________________________________________________
+void
+AliFMDReconstructor::Init()
+{
+ // Initialize the reconstructor
-void AliFMDReconstructor::Reconstruct(AliRunLoader* runLoader) const
-{
- //Collects all digits in the same active volume into number of particles
- /*
- Reconstruct number of particles
- in given group of pads for given FMDvolume
- determine by numberOfVolume ,
- numberOfMinSector,numberOfMaxSector,
- numberOfMinRing, numberOgMaxRing
- Reconstructor method choose dependence on number of empty pads
- */
+ // Initialize the geometry
+ AliFMDGeometry* geom = AliFMDGeometry::Instance();
+ geom->Init();
+ geom->InitTransformations();
+ // Initialize the parameters
+ AliFMDParameters* param = AliFMDParameters::Instance();
+ if (param->Init() != 0) {
+ AliError("Failed to initialize parameters, making zombie");
+ fZombie = true;
+ }
+ else
+ fZombie = false;
+
+ // Current vertex position
+ fCurrentVertex = 0;
+ // Create array of reconstructed strip multiplicities
+ // fMult = new TClonesArray("AliFMDRecPoint", 51200);
+ // Create ESD output object
+ fESDObj = new AliESDFMD;
+
+ // Check if we need diagnostics histograms
+ if (!fDiagnostics) return;
+ AliInfo("Making diagnostics histograms");
+ if (!fDiagStep1) {
+ fDiagStep1 = new TH2I("diagStep1", "Read ADC vs. Noise surpressed ADC",
+ 1024, -.5, 1023.5, 1024, -.5, 1023.5);
+ fDiagStep1->SetDirectory(0);
+ fDiagStep1->GetXaxis()->SetTitle("ADC (read)");
+ fDiagStep1->GetYaxis()->SetTitle(Form("ADC (noise surpressed %4.f)",
+ fNoiseFactor));
+ }
+ if (!fDiagStep2) {
+ fDiagStep2 = new TH2F("diagStep2", "ADC vs Edep deduced",
+ 1024, -.5, 1023.5, 100, 0, 2);
+ fDiagStep2->SetDirectory(0);
+ fDiagStep2->GetXaxis()->SetTitle("ADC (noise surpressed)");
+ fDiagStep2->GetYaxis()->SetTitle("#Delta E [GeV]");
+ }
+ if (!fDiagStep3) {
+ fDiagStep3 = new TH2F("diagStep3", "Edep vs Edep path corrected",
+ 100, 0., 2., 100, 0., 2.);
+ fDiagStep3->SetDirectory(0);
+ fDiagStep3->GetXaxis()->SetTitle("#Delta E [GeV]");
+ fDiagStep3->GetYaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]");
+ }
+ if (!fDiagStep4) {
+ fDiagStep4 = new TH2F("diagStep4", "Edep vs Multiplicity deduced",
+ 100, 0., 2., 100, -.1, 19.9);
+ fDiagStep4->SetDirectory(0);
+ fDiagStep4->GetXaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]");
+ fDiagStep4->GetYaxis()->SetTitle("Multiplicity");
+ fDiagAll = new TH2F("diagAll", "Read ADC vs Multiplicity deduced",
+ 1024, -.5, 1023.5, 100, -.1, 19.9);
+ }
+ if (fDiagAll) {
+ fDiagAll->SetDirectory(0);
+ fDiagAll->GetXaxis()->SetTitle("ADC (read)");
+ fDiagAll->GetYaxis()->SetTitle("Multiplicity");
+ }
+}
-#ifdef DEBUG
- Info("Exec ","Start");
-#endif
+//____________________________________________________________________
+void
+AliFMDReconstructor::ConvertDigits(AliRawReader* reader,
+ TTree* digitsTree) const
+{
+ // Convert Raw digits to AliFMDDigit's in a tree
+ if (fZombie) {
+ AliWarning("I'm a zombie - cannot do anything");
+ return;
+ }
+ AliFMDDebug(1, ("Reading raw data into digits tree"));
+ if (!digitsTree) {
+ AliError("No digits tree passed");
+ return;
+ }
+ static TClonesArray* array = 0;
+ if (!array) array = new TClonesArray("AliFMDDigit");
+ digitsTree->Branch("FMD", &array);
+ array->Clear();
+
+ AliFMDRawReader rawRead(reader, digitsTree);
+ // rawRead.SetSampleRate(fFMD->GetSampleRate());
+ // rawRead.Exec();
+ rawRead.ReadAdcs(array);
- Int_t const knumVolumes=5;
- Int_t padADC;
- Float_t eta, etain,etaout,rad,theta;
- Int_t ivol, iSector, iRing;
- Float_t rin[5]={4.2,15.4,4.2,15.4,4.2};
- Float_t rout[5]={17.4,28.4,17.4,28.4,17.4};
- Float_t z[5]={-62.8, -75.2, 83.4, 75.2, 340.};
- Int_t numberOfRings[5]={512,256,512,256,512};
- Int_t numberOfSectors[5]= {20,40,20,40,20};
- Int_t numberOfEtaIntervals[5];
- // number of ring for boundary 0.1 eta
+ Int_t nWrite = digitsTree->Fill();
+ AliDebugF(1, "Got a grand total of %d digits, wrote %d bytes to tree",
+ array->GetEntriesFast(), nWrite);
- if (runLoader == 0x0)
- {
- Error("Exec","Run Loader loader is NULL - Session not opened");
+ AliFMDAltroMapping* map = AliFMDParameters::Instance()->GetAltroMap();
+ for (UShort_t i = 1; i <= 3; i++) {
+ fZS[i-1] = rawRead.IsZeroSuppressed(map->Detector2DDL(i));
+ fZSFactor[i-1] = rawRead.NoiseFactor(map->Detector2DDL(i));
+ AliDebugF(2, "Noise factor for FMD%hu: %d", i, fZSFactor[i-1]);
+ }
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::GetVertex(AliESDEvent* esd) const
+{
+ // Return the vertex to use.
+ // This is obtained from the ESD object.
+ // If not found, a warning is issued.
+ fVertexType = kNoVertex;
+ fCurrentVertex = 0;
+ if (!esd) return;
+
+ const AliESDVertex* vertex = esd->GetPrimaryVertex();
+ if (!vertex) vertex = esd->GetPrimaryVertexSPD();
+ if (!vertex) vertex = esd->GetPrimaryVertexTPC();
+ if (!vertex) vertex = esd->GetVertex();
+
+ if (vertex) {
+ AliFMDDebug(2, ("Got %s (%s) from ESD: %f",
+ vertex->GetName(), vertex->GetTitle(), vertex->GetZv()));
+ fCurrentVertex = vertex->GetZv();
+ fVertexType = kESDVertex;
return;
- }
-
- AliLoader* plFMD = runLoader->GetLoader("FMDLoader");
- if (plFMD == 0x0)
- {
- Fatal("AliFMDReconstructor","Can not find FMD (loader) in specified event");
- return;//never reached
- }
-
- if (!runLoader->GetAliRun()) runLoader->LoadgAlice();
- if (!runLoader->TreeE()) runLoader->LoadHeader();
-
- TDirectory* cwd = gDirectory;
- gDirectory = 0x0;
- Text_t buf1[20];
- TH2F* hTotal[10];
- for (Int_t j=1; j<=5; j++){
- sprintf(buf1,"hTotal%d",j);
+ }
+ else if (esd->GetESDTZERO()) {
+ AliFMDDebug(2, ("Got primary vertex from T0: %f", esd->GetT0zVertex()));
+ fCurrentVertex = esd->GetT0zVertex();
+ fVertexType = kESDVertex;
+ return;
+ }
+ AliWarning("Didn't get any vertex from ESD or generator");
+}
+
+//____________________________________________________________________
+Int_t
+AliFMDReconstructor::GetIdentifier() const
+{
+ // Get the detector identifier.
+ // Note the actual value is cached so that we do not
+ // need to do many expensive string comparisons.
+ static Int_t idx = AliReconstruction::GetDetIndex(GetDetectorName());
+ return idx;
+}
+
+//____________________________________________________________________
+const AliFMDRecoParam*
+AliFMDReconstructor::GetParameters() const
+{
+ // Get the reconstruction parameters.
+ //
+ // Return:
+ // Pointer to reconstruction parameters or null if not found or wrong type
+ Int_t iDet = GetIdentifier(); // Was 12 - but changed on Cvetans request
+ const AliDetectorRecoParam* params = AliReconstructor::GetRecoParam(iDet);
+ if (!params || params->IsA() != AliFMDRecoParam::Class()) return 0;
+ return static_cast<const AliFMDRecoParam*>(params);
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::UseRecoParam(Bool_t set) const
+{
+ //
+ // Set-up reconstructor to use values from reconstruction
+ // parameters, if present, for this event. If the argument @a set
+ // is @c false, then restore preset values.
+ //
+ // Parameters:
+ // set
+ //
+ static Float_t savedNoiseFactor = fNoiseFactor;
+ static Bool_t savedAngleCorrect = fAngleCorrect;
+ if (set) {
+ const AliFMDRecoParam* params = GetParameters();
+ if (params) {
+ fNoiseFactor = params->NoiseFactor();
+ fAngleCorrect = params->AngleCorrect();
+ }
+ return;
+ }
+ fNoiseFactor = savedNoiseFactor;
+ fAngleCorrect = savedAngleCorrect;
+}
+
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::MarkDeadChannels(AliESDFMD* esd) const
+{
+ // Loop over all entries of the ESD and mark
+ // those that are dead as such
+ // - otherwise put in the zero signal.
+ AliFMDParameters* param = AliFMDParameters::Instance();
+
+ for (UShort_t d = 1; d <= 3; d++) {
+ UShort_t nR = (d == 1 ? 1 : 2);
+
+ for (UShort_t q = 0; q < nR; q++) {
+ Char_t r = (q == 0 ? 'I' : 'O');
+ UShort_t nS = (q == 0 ? 20 : 40);
+ UShort_t nT = (q == 0 ? 512 : 256);
+
+ for (UShort_t s = 0; s < nS; s++) {
+ for (UShort_t t = 0; t < nT; t++) {
+ // A strip can be marked `bad' for two reasons:
+ //
+ // - The raw reader fails to read the value
+ // - The strip is marked in OCDB as bad (IsDead)
+ //
+ // Hence, a dead strip will always be marked kInvalid here,
+ // while a non-dead bad-read strip will be filled with 0.
+ if (fBad(d, r, s, t)) {
+ AliDebugF(5, "Marking FMD%d%c[%2d,%3d] as bad", d, r, s, t);
+ esd->SetMultiplicity(d, r, s, t, AliESDFMD::kInvalidMult);
+ }
+ if (param->IsDead(d, r, s, t)) {
+ AliDebugF(5, "Marking FMD%d%c[%2d,%3d] as dead", d, r, s, t);
+ esd->SetMultiplicity(d, r, s, t, AliESDFMD::kInvalidMult);
+ // esd->SetEta(d, r, s, t, AliESDFMD::kInvalidEta);
+ }
+ else if (esd->Multiplicity(d, r, s, t) == AliESDFMD::kInvalidMult) {
+ AliDebugF(20, "Setting null signal in FMD%d%c[%2d,%3d]",
+ d, r, s, t);
+ esd->SetMultiplicity(d, r, s, t, 0);
+ }
+ else {
+ AliDebugF(10, "Setting FMD%d%c[%2d,%3d]=%f",d,r,s,t,
+ esd->Multiplicity(d, r, s, t));
+ }
+ }
+ }
+ }
+ }
+}
+
+//____________________________________________________________________
+Bool_t
+AliFMDReconstructor::PreReconstruct() const
+{
+ AliFMDDebug(1, ("Before reoconstructing"));
+ if (fZombie) {
+ AliWarning("I'm a zombie - cannot do anything");
+ return false;
+ }
+
+ // Get our vertex
+ GetVertex(fESD);
+
+ // Reset bad flags
+ fBad.Reset(false);
+
+ // Reset the output ESD
+ if (fESDObj) {
+ fESDObj->Clear();
- hTotal[j] = new TH2F(buf1," Number of primary particles ",
- numberOfSectors[j-1],1,numberOfSectors[j-1],
- numberOfRings[j-1],1,numberOfRings[j-1]);
- }
- gDirectory = cwd;
-
- plFMD->LoadRecPoints("RECREATE");
- Int_t retval=0;
- Int_t nevents=Int_t (runLoader->TreeE()->GetEntries());
-#ifdef DEBUG
- cout<<" nevents "<<nevents<<endl;
-#endif
- for(Int_t ievent=0;ievent<nevents;ievent++)
- {
-#ifdef DEBUG
- cout<<" *** event "<<ievent<<endl;
-#endif
- runLoader->GetEvent(ievent) ;
- //event z-vertex for correction eta-rad dependence
- AliHeader *header = runLoader->GetHeader();
- AliGenEventHeader* genHeader = header->GenEventHeader();
- TArrayF *o = new TArrayF(3);
- genHeader->PrimaryVertex(*o);
- Float_t zVertex=o->At(2);
-
- for (Int_t i=0; i<5; i++)
- hTotal[i+1]->Reset();
-
- retval = plFMD->LoadDigits("READ");
- if (retval)
- {
- Error("Exec","Error occured while loading digits. Exiting.");
- return;
+ // Pre-set eta values
+ for (UShort_t d=1; d<=3; d++) {
+ UShort_t nQ = (d == 1 ? 1 : 2);
+ for (UShort_t q=0; q<nQ; q++) {
+ UShort_t nStr = (q == 0 ? 512 : 256);
+ Char_t r = (q == 0 ? 'I' : 'O');
+
+ for (UShort_t t = 0; t < nStr; t++) {
+ Float_t eta, phi;
+ // Always use sector 0
+ PhysicalCoordinates(d, r, 0, t, eta, phi);
+ fESDObj->SetEta(d, r, 0, t, eta);
}
-
- AliFMD * fFMD = (AliFMD *)gAlice->GetDetector("FMD");
- TClonesArray *fReconParticles=fFMD->ReconParticles();
- TClonesArray *fDigits=fFMD->Digits();
+ }
+ }
+ }
+
+
+ return true;
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::Reconstruct(AliFMDRawReader& rawReader) const
+{
+ // Reconstruct directly from raw data (no intermediate output on
+ // digit tree or rec point tree).
+ //
+ // Parameters:
+ // rawReader FMD Raw event reader
+ AliFMDDebug(1, ("Reconstructing from FMD raw reader"));
+ if (!PreReconstruct()) return;
+
+ UShort_t det, sec, str, fac;
+ Short_t adc, oldDet = -1;
+ Bool_t zs;
+ Char_t rng;
- TTree* treeD = plFMD->TreeD();
- if (treeD == 0x0)
- {
- Error("Exec","Can not get Tree with Digits. Nothing to reconstruct - Exiting");
- return;
- }
-
- TBranch *brDigits=0;
-
- brDigits=treeD->GetBranch("FMD");
-
- if (brDigits) {
- brDigits->SetAddress(&fDigits);
- }else{
- cerr<<"EXEC Branch FMD digits not found"<<endl;
- return;
- }
-
- if(plFMD->TreeR()==0) plFMD->MakeTree("R");
-
- //Make branches
- fFMD->MakeBranch("R");
-
-
- Int_t zeroADC=6;
- // read Digits
- AliFMDdigit *fmdDigit;
- if (fFMD)
- {
- plFMD->TreeD()->GetEvent(0);
-
- Int_t nDigits=fDigits->GetEntries();
- Int_t recParticles[6];
- Int_t nRecPart=0 ;
- Int_t zeroPads=0;
- Int_t numberOfPads=0;
- Int_t pedestal;
- Float_t channelWidth=(22400*50)/1024;
- for (Int_t digit=0;digit<nDigits;digit++)
- {
- fmdDigit=(AliFMDdigit*)fDigits->UncheckedAt(digit);
- ivol=fmdDigit->Volume();
- iSector=fmdDigit->NumberOfSector();
- iRing=fmdDigit->NumberOfRing();
- pedestal=Int_t(gRandom->Gaus(500,250));
- padADC= fmdDigit->ADCsignal()
- -Int_t(Float_t(pedestal)/channelWidth);
- if (padADC<0) padADC=0;
- hTotal[ivol]->Fill(iSector,iRing,padADC);
- } //digit loop
-
- //reconstruct multiplicity in 0.1 eta according Poisson distribution
-
- Int_t rmin=0; Int_t rmax=0;
- Int_t smin=0; Int_t smax=0;
- for (ivol=0; ivol<knumVolumes; ivol++)
- {
- Float_t ring2number=Float_t (numberOfRings[ivol])/
- (rout[ivol]-rin[ivol]);
- Float_t realZ=zVertex+z[ivol];
- theta=TMath::ATan(rout[ivol]/TMath::Abs(realZ));
- etain = - TMath::Log( TMath::Tan(theta/2.));
- theta=TMath::ATan(rin[ivol]/TMath::Abs(realZ));
- etaout=- TMath::Log( TMath::Tan(theta/2.));
- numberOfEtaIntervals[ivol]=Int_t((etaout-etain)*10)-1;
- eta=etain;
- for (Int_t e1=0;e1<=numberOfEtaIntervals[ivol];e1++)
- {
- theta = 2.*TMath::ATan (TMath::Exp (-eta));
- Float_t radmin = TMath::Abs(realZ) * (TMath::Tan (theta));
- rmax= Int_t ( (radmin-rin[ivol])*ring2number+0.5);
- eta=eta+0.1;
- theta = 2.*TMath::ATan (TMath::Exp (-eta));
- rad = TMath::Abs(realZ) * (TMath::Tan (theta));
- rmin=Int_t( (rad-rin[ivol])*ring2number+0.5);
-
- zeroPads=0;
- smin=0;
- smax=numberOfSectors[ivol];
- numberOfPads=(rmax-rmin)*(smax-smin);
- for (Int_t iring=rmin; iring<rmax; iring++)
- {
- for
- (Int_t isector=0;
- isector<numberOfSectors[ivol];
- isector++)
- {
- if(hTotal[ivol+1]->GetBinContent(isector+1,iring+1)
- <zeroADC) zeroPads++;}
-
- } //ring
- Float_t numberOfPads=Float_t(smax-smin)*Float_t(rmax-rmin);
-
- Double_t lambda=-TMath::Log(Double_t(zeroPads)/numberOfPads);
- Int_t fRecon=Int_t (lambda*numberOfPads+0.5);
- recParticles[0]=ivol+1;
- recParticles[1]=smin;
- recParticles[2]=smax;
- recParticles[3]=rmin;
- recParticles[4]=rmax;
- recParticles[5]= fRecon;
- new((*fReconParticles)[nRecPart++]) AliFMDReconstParticles(recParticles);
-
-
- } // eta
- } // volume
-
- }//if FMD
- plFMD->TreeR()->Reset();
- plFMD->TreeR()->Fill();
- plFMD->WriteRecPoints("OVERWRITE");
- plFMD->UnloadDigits();
- } //event loop
- plFMD->UnloadRecPoints();
-#ifdef DEBUG
- Info(" Exec"," finished");
+ UseRecoParam(kTRUE);
+ while (rawReader.NextSignal(det, rng, sec, str, adc, zs, fac)) {
+ if (det != oldDet) {
+ fZS[det-1] = zs;
+ fZSFactor[det-1] = fac;
+ oldDet = det;
+ }
+ ProcessSignal(det, rng, sec, str, adc);
+ }
+ UseRecoParam(kFALSE);
+
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::Reconstruct(AliRawReader* reader, TTree*) const
+{
+ // Reconstruct directly from raw data (no intermediate output on
+ // digit tree or rec point tree).
+ //
+ // Parameters:
+ // reader Raw event reader
+ // ctree Not used - 'cluster tree' to store rec-points in.
+ AliFMDDebug(1, ("Reconstructing from raw reader"));
+ if (fZombie) {
+ AliWarning("I'm a zombie - cannot do anything");
+ return;
+ }
+ AliFMDRawReader rawReader(reader, 0);
+ Reconstruct(rawReader);
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::Digitize(AliRawReader* reader, TClonesArray* sdigits) const
+{
+ // Reconstruct directly from raw data (no intermediate output on
+ // digit tree or rec point tree).
+ //
+ // Parameters:
+ // reader Raw event reader
+ // ctree Not used.
+ if (fZombie) {
+ AliWarning("I'm a zombie - cannot do anything");
+ return;
+ }
+ AliFMDRawReader rawReader(reader, 0);
+
+ UShort_t det, sec, str, sam, rat, fac;
+ Short_t adc, oldDet = -1;
+ Bool_t zs;
+ Char_t rng;
+
+ UseRecoParam(kTRUE);
+ while (rawReader.NextSample(det, rng, sec, str, sam, rat, adc, zs, fac)) {
+ if (!rawReader.SelectSample(sam, rat)) continue;
+ if (det != oldDet) {
+ fZS[det-1] = zs;
+ fZSFactor[det-1] = fac;
+ oldDet = det;
+ }
+ DigitizeSignal(sdigits, det, rng, sec, str, sam, adc);
+ }
+ UseRecoParam(kFALSE);
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::Reconstruct(TTree* digitsTree,
+ TTree* clusterTree) const
+{
+ // Reconstruct event from digits in tree
+ // Get the FMD branch holding the digits.
+ // FIXME: The vertex may not be known yet, so we may have to move
+ // some of this to FillESD.
+ //
+ // Parameters:
+ // digitsTree Pointer to a tree containing digits
+ // clusterTree Pointer to output tree
+ //
+ if (!PreReconstruct()) return;
+
+ if (!fMult) fMult = new TClonesArray("AliFMDRecPoint");
+
+ AliFMDDebug(1, ("Reconstructing from digits in a tree"));
+
+ // Get the digitis array
+ static TClonesArray* digits = new TClonesArray("AliFMDDigit");
+ TBranch* digitBranch = digitsTree->GetBranch("FMD");
+ if (!digitBranch) {
+ Error("Exec", "No digit branch for the FMD found");
+ return;
+ }
+ digitBranch->SetAddress(&digits);
+
+ if (digits) digits->Clear();
+ if (fMult) fMult->Clear();
+
+ // Create rec-point output branch
+ fNMult = 0;
+ fTreeR = clusterTree;
+ fTreeR->Branch("FMD", &fMult);
+
+ AliDebug(5, "Getting entry 0 from digit branch");
+ digitBranch->GetEntry(0);
+
+ AliDebugF(5, "Processing %d digits", digits->GetEntriesFast());
+ UseRecoParam(kTRUE);
+ ProcessDigits(digits);
+ UseRecoParam(kFALSE);
+
+ Int_t written = clusterTree->Fill();
+ AliFMDDebug(10, ("Filled %d bytes into cluster tree", written));
+ // digits->Delete();
+ // delete digits;
+}
+
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::ProcessDigits(TClonesArray* digits,
+ const AliFMDRawReader& rawRead) const
+{
+ // For each digit, find the pseudo rapdity, azimuthal angle, and
+ // number of corrected ADC counts, and pass it on to the algorithms
+ // used.
+ //
+ // Parameters:
+ // digits Array of digits
+ //
+ if (fZombie) {
+ AliWarning("I'm a zombie - cannot do anything");
+ return;
+ }
+ AliFMDAltroMapping* map = AliFMDParameters::Instance()->GetAltroMap();
+ for (size_t i = 1; i <= 3; i++) {
+ fZS[i-1] = rawRead.IsZeroSuppressed(map->Detector2DDL(i));
+ fZSFactor[i-1] = rawRead.NoiseFactor(map->Detector2DDL(i));
+ }
+ UseRecoParam(kTRUE);
+ ProcessDigits(digits);
+ UseRecoParam(kFALSE);
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::ProcessDigits(TClonesArray* digits) const
+{
+ // For each digit, find the pseudo rapdity, azimuthal angle, and
+ // number of corrected ADC counts, and pass it on to the algorithms
+ // used.
+ //
+ // Parameters:
+ // digits Array of digits
+ //
+ Int_t nDigits = digits->GetEntries();
+ AliFMDDebug(2, ("Got %d digits", nDigits));
+ fESDObj->SetNoiseFactor(fNoiseFactor);
+ fESDObj->SetAngleCorrected(fAngleCorrect);
+ fBad.Reset(false);
+ for (Int_t i = 0; i < nDigits; i++) {
+ AliFMDDigit* digit = static_cast<AliFMDDigit*>(digits->At(i));
+ if (!digit) continue;
+ ProcessDigit(digit);
+ }
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::ProcessDigit(AliFMDDigit* digit) const
+{
+ //
+ // Process a single digit
+ //
+ // Parameters:
+ // digit Digiti to process
+ //
+ UShort_t det = digit->Detector();
+ Char_t rng = digit->Ring();
+ UShort_t sec = digit->Sector();
+ UShort_t str = digit->Strip();
+ Short_t adc = digit->Counts();
+ // if (AliLog::GetDebugLevel("FMD","")>3) digit->Print();
+ ProcessSignal(det, rng, sec, str, adc);
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::ProcessSignal(UShort_t det,
+ Char_t rng,
+ UShort_t sec,
+ UShort_t str,
+ Short_t adc) const
+{
+ // Process the signal from a single strip
+ //
+ // Parameters:
+ // det Detector ID
+ // rng Ring ID
+ // sec Sector ID
+ // rng Strip ID
+ // adc ADC counts
+ //
+ Int_t dbg = AliLog::GetDebugLevel("FMD","");
+ Bool_t dhr = dbg > 3 && dbg < 10;
+ if (dhr) printf("FMD%d%c[%2d,%3d] adc=%4d ", det, rng, sec, str, adc);
+
+ if (adc >= AliFMDRawReader::kBadSignal) {
+ AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is marked bad", det, rng, sec, str));
+ if (dhr) Printf("bad");
+ fBad(det,rng,sec,str) = true;
+ return;
+ }
+
+ // Check that the strip is not marked as dead
+ AliFMDParameters* param = AliFMDParameters::Instance();
+ if (param->IsDead(det, rng, sec, str)) {
+ AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str));
+ if (dhr) Printf("dead");
+ fBad(det,rng,sec,str) = true;
+ return;
+ }
+
+ // digit->Print();
+ // Get eta and phi
+ Float_t eta = fESDObj->Eta(det, rng, 0, str);
+
+ // Substract pedestal.
+ UShort_t counts = SubtractPedestal(det, rng, sec, str, adc);
+ if(counts == USHRT_MAX) {
+ if (dhr) Printf("invalid");
+ return;
+ }
+ if (dhr) printf("counts=%4d ", counts);
+
+ // Gain match digits.
+ Double_t edep = Adc2Energy(det, rng, sec, str, eta, counts);
+ // Get rid of nonsense energy
+ if(edep < 0) {
+ if (dhr) Printf("zero");
+ return;
+ }
+ if (dhr) printf("edep=%f ", edep);
+
+ // Make rough multiplicity
+ Double_t mult = Energy2Multiplicity(det, rng, sec, str, edep);
+ // Get rid of nonsense mult
+ //if (mult > 20) {
+ // AliWarning(Form("The mutliplicity in FMD%d%c[%2d,%3d]=%f > 20 "
+ // "(ADC: %d, Energy: %f)", det, rng, sec, str, mult,
+ // counts, edep));
+ // }
+ if (mult < 0) {
+ if (dhr) Printf("not hit");
+ return;
+ }
+
+ if (dhr) Printf("mult=%f ", mult);
+ AliFMDDebug(10, ("FMD%d%c[%2d,%3d]: "
+ "ADC: %d, Counts: %d, Energy: %f, Mult: %f",
+ det, rng, sec, str, adc, counts, edep, mult));
+
+ // Create a `RecPoint' on the output branch.
+ if (fMult) {
+ Float_t phi;
+ PhysicalCoordinates(det, rng, sec, str, eta, phi);
+
+ AliFMDRecPoint* m =
+ new ((*fMult)[fNMult]) AliFMDRecPoint(det, rng, sec, str,
+ eta, phi, edep, mult);
+ (void)m; // Suppress warnings about unused variables.
+ fNMult++;
+ }
+
+ fESDObj->SetMultiplicity(det, rng, sec, str, mult);
+ // fESDObj->SetEta(det, rng, sec, str, eta);
+
+ if (fDiagAll) fDiagAll->Fill(adc, mult);
+
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::DigitizeSignal(TClonesArray* sdigits,
+ UShort_t det,
+ Char_t rng,
+ UShort_t sec,
+ UShort_t str,
+ UShort_t /* sam */,
+ Short_t adc) const
+{
+ // Process the signal from a single strip
+ //
+ // Parameters:
+ // det Detector ID
+ // rng Ring ID
+ // sec Sector ID
+ // rng Strip ID
+ // adc ADC counts
+ //
+ AliFMDParameters* param = AliFMDParameters::Instance();
+ // Check that the strip is not marked as dead
+ if (param->IsDead(det, rng, sec, str)) {
+ AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str));
+ return;
+ }
+
+ // Substract pedestal.
+ UShort_t counts = SubtractPedestal(det, rng, sec, str, adc);
+ if(counts == USHRT_MAX || counts == 0) return;
+
+ // Gain match digits.
+ Double_t edep = Adc2Energy(det, rng, sec, str, counts);
+ // Get rid of nonsense energy
+ if(edep < 0) return;
+
+ Int_t n = sdigits->GetEntriesFast();
+ // AliFMDSDigit* sdigit =
+ new ((*sdigits)[n])
+ AliFMDSDigit(det, rng, sec, str, edep, counts, counts, counts, counts);
+ // sdigit->SetCount(sam, counts);
+}
+
+//____________________________________________________________________
+UShort_t
+AliFMDReconstructor::SubtractPedestal(UShort_t det,
+ Char_t rng,
+ UShort_t sec,
+ UShort_t str,
+ UShort_t adc,
+ Float_t noiseFactor,
+ Bool_t zsEnabled,
+ UShort_t zsNoiseFactor) const
+{
+ //
+ // Subtract the pedestal off the ADC counts.
+ //
+ // Parameters:
+ // det Detector number
+ // rng Ring identifier
+ // sec Sector number
+ // str Strip number
+ // adc ADC counts
+ // noiseFactor If pedestal substracted pedestal is less then
+ // this times the noise, then consider this to be 0.
+ // zsEnabled Whether zero-suppression is on.
+ // zsNoiseFactor Noise factor used in on-line pedestal
+ // subtraction.
+ //
+ // Return:
+ // The pedestal subtracted ADC counts (possibly 0), or @c
+ // USHRT_MAX in case of problems.
+ //
+ AliFMDParameters* param = AliFMDParameters::Instance();
+ Float_t ped = (zsEnabled ? 0 :
+ param->GetPedestal(det, rng, sec, str));
+ Float_t noise = param->GetPedestalWidth(det, rng, sec, str);
+ if (ped < 0 || noise < 0) {
+ AliWarningClass(Form("Invalid pedestal (%f) or noise (%f) "
+ "for FMD%d%c[%02d,%03d]",
+ ped, noise, det, rng, sec, str));
+ return USHRT_MAX;
+ }
+ AliDebugClass(10, Form("Subtracting pedestal for FMD%d%c[%2d,%3d]=%4d "
+ "(%s w/factor %d, noise factor %f, "
+ "pedestal %8.2f+/-%8.2f)",
+ det, rng, sec, str, adc,
+ (zsEnabled ? "zs'ed" : "straight"),
+ zsNoiseFactor, noiseFactor, ped, noise));
+
+ Int_t counts = adc + Int_t(zsEnabled ? zsNoiseFactor * noise : - ped);
+ counts = TMath::Max(Int_t(counts), 0);
+ // Calculate the noise factor for suppressing remenants of the noise
+ // peak. If we have done on-line zero suppression, we only check
+ // for noise signals that are larger than the suppressed noise. If
+ // the noise factor used on line is larger than the factor used
+ // here, we do not do this check at all.
+ //
+ // For example:
+ // Online factor | Read factor | Result
+ // ---------------+--------------+-------------------------------
+ // 2 | 3 | Check if signal > 1 * noise
+ // 3 | 3 | Check if signal > 0
+ // 3 | 2 | Check if signal > 0
+ //
+ // In this way, we make sure that we do not suppress away too much
+ // data, and that the read-factor is the most stringent cut.
+ Float_t nf = zsNoiseFactor; // TMath::Max(0.F, noiseFactor - (zsEnabled ? zsNoiseFactor : 0));
+ if (counts <= noise * nf) counts = 0;
+ if (counts > 0) AliDebugClass(15, "Got a hit strip");
+
+ UShort_t ret = counts < 0 ? 0 : counts;
+ return ret;
+}
+
+
+//____________________________________________________________________
+UShort_t
+AliFMDReconstructor::SubtractPedestal(UShort_t det,
+ Char_t rng,
+ UShort_t sec,
+ UShort_t str,
+ Short_t adc) const
+{
+ // Member function to subtract the pedestal from a digit
+ //
+ // Parameters:
+ // det Detector ID
+ // rng Ring ID
+ // sec Sector ID
+ // rng Strip ID
+ // adc # of ADC counts
+ // Return:
+ // Pedestal subtracted signal or USHRT_MAX in case of problems
+ //
+ UShort_t counts = SubtractPedestal(det, rng, sec, str, adc,
+ fNoiseFactor, fZS[det-1],
+ fZSFactor[det-1]);
+ if (fDiagStep1) fDiagStep1->Fill(adc, counts);
+
+ return counts;
+}
+
+//____________________________________________________________________
+Float_t
+AliFMDReconstructor::Adc2Energy(UShort_t det,
+ Char_t rng,
+ UShort_t sec,
+ UShort_t str,
+ UShort_t count) const
+{
+ // Converts number of ADC counts to energy deposited.
+ // Note, that this member function can be overloaded by derived
+ // classes to do strip-specific look-ups in databases or the like,
+ // to find the proper gain for a strip.
+ //
+ // In the first simple version, we calculate the energy deposited as
+ //
+ // EnergyDeposited = cos(theta) * gain * count
+ //
+ // where
+ //
+ // Pre_amp_MIP_Range
+ // gain = ----------------- * Energy_deposited_per_MIP
+ // ADC_channel_size
+ //
+ // is constant and the same for all strips.
+ //
+ // For the production we use the conversion measured in the NBI lab.
+ // The total conversion is then:
+ //
+ // gain = ADC / DAC
+ //
+ // EdepMip * count
+ // => energy = ----------------
+ // gain * DACPerADC
+ //
+ // Parameters:
+ // det Detector ID
+ // rng Ring ID
+ // sec Sector ID
+ // rng Strip ID
+ // counts Number of ADC counts over pedestal
+ // Return
+ // The energy deposited in a single strip, or -1 in case of problems
+ //
+ if (count <= 0) return 0;
+ AliFMDParameters* param = AliFMDParameters::Instance();
+ Float_t gain = param->GetPulseGain(det, rng, sec, str);
+ // 'Tagging' bad gains as bad energy
+ if (gain < 0) {
+ AliDebugF(10, "Invalid gain (%f) for FMD%d%c[%02d,%03d]",
+ gain, det, rng, sec, str);
+ return -1;
+ }
+ AliDebugF(10, "Converting counts %d to energy (factor=%f, DAC2MIP=%f)",
+ count, gain,param->GetDACPerMIP());
+
+ Double_t edep = ((count * param->GetEdepMip())
+ / (gain * param->GetDACPerMIP()));
+ return edep;
+}
+
+//____________________________________________________________________
+Float_t
+AliFMDReconstructor::Adc2Energy(UShort_t det,
+ Char_t rng,
+ UShort_t sec,
+ UShort_t str,
+ Float_t eta,
+ UShort_t count) const
+{
+ // Converts number of ADC counts to energy deposited.
+ // Note, that this member function can be overloaded by derived
+ // classes to do strip-specific look-ups in databases or the like,
+ // to find the proper gain for a strip.
+ //
+ // In the first simple version, we calculate the energy deposited as
+ //
+ // EnergyDeposited = cos(theta) * gain * count
+ //
+ // where
+ //
+ // Pre_amp_MIP_Range
+ // gain = ----------------- * Energy_deposited_per_MIP
+ // ADC_channel_size
+ //
+ // is constant and the same for all strips.
+ //
+ // For the production we use the conversion measured in the NBI lab.
+ // The total conversion is then:
+ //
+ // gain = ADC / DAC
+ //
+ // EdepMip * count
+ // => energy = ----------------
+ // gain * DACPerADC
+ //
+ // Parameters:
+ // det Detector ID
+ // rng Ring ID
+ // sec Sector ID
+ // rng Strip ID
+ // eta Psuedo-rapidity
+ // counts Number of ADC counts over pedestal
+ // Return
+ // The energy deposited in a single strip, or -1 in case of problems
+ //
+ Double_t edep = Adc2Energy(det, rng, sec, str, count);
+
+ if (fDiagStep2) fDiagStep2->Fill(count, edep);
+ if (fAngleCorrect) {
+ Double_t theta = 2 * TMath::ATan(TMath::Exp(-eta));
+ Double_t corr = TMath::Abs(TMath::Cos(theta));
+ Double_t cedep = corr * edep;
+ AliDebugF(10, "correcting for path %f * %f = %f (eta=%f, theta=%f)",
+ edep, corr, cedep, eta, theta);
+ if (fDiagStep3) fDiagStep3->Fill(edep, cedep);
+ edep = cedep;
+ }
+ return edep;
+}
+
+//____________________________________________________________________
+Float_t
+AliFMDReconstructor::Energy2Multiplicity(UShort_t /*det*/,
+ Char_t /*rng*/,
+ UShort_t /*sec*/,
+ UShort_t /*str*/,
+ Float_t edep) const
+{
+ // Converts an energy signal to number of particles.
+ // Note, that this member function can be overloaded by derived
+ // classes to do strip-specific look-ups in databases or the like,
+ // to find the proper gain for a strip.
+ //
+ // In this simple version, we calculate the multiplicity as
+ //
+ // multiplicity = Energy_deposited / Energy_deposited_per_MIP
+ //
+ // where
+ //
+ // Energy_deposited_per_MIP = 1.664 * SI_density * SI_thickness
+ //
+ // is constant and the same for all strips
+ //
+ // Parameters:
+ // det Detector ID
+ // rng Ring ID
+ // sec Sector ID
+ // rng Strip ID
+ // edep Energy deposited in a single strip
+ // Return
+ // The "bare" multiplicity corresponding to the energy deposited
+ AliFMDParameters* param = AliFMDParameters::Instance();
+ Double_t edepMIP = param->GetEdepMip();
+ Float_t mult = edep / edepMIP;
+#if 0
+ if (edep > 0)
+ AliFMDDebug(15, ("Translating energy %f to multiplicity via "
+ "divider %f->%f", edep, edepMIP, mult));
#endif
- // delete hTotal[10];
+ if (fDiagStep4) fDiagStep4->Fill(edep, mult);
+ return mult;
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::PhysicalCoordinates(UShort_t det,
+ Char_t rng,
+ UShort_t sec,
+ UShort_t str,
+ Float_t& eta,
+ Float_t& phi) const
+{
+ // Get the eta and phi of a digit
+ //
+ // Parameters:
+ // det Detector ID
+ // rng Ring ID
+ // sec Sector ID
+ // rng Strip ID
+ // eta On return, contains the psuedo-rapidity of the strip
+ // phi On return, contains the azimuthal angle of the strip
+ //
+ AliFMDGeometry* geom = AliFMDGeometry::Instance();
+ Double_t x, y, z, r, theta, deta, dphi;
+ geom->Detector2XYZ(det, rng, sec, str, x, y, z);
+
+ // Correct for vertex offset.
+ z -= fCurrentVertex;
+ AliFMDGeometry::XYZ2REtaPhiTheta(x, y, z, r, deta, dphi, theta);
+ eta = deta;
+ phi = dphi;
+}
+namespace {
+ class ESDPrinter : public AliESDFMD::ForOne
+ {
+ public:
+ ESDPrinter() {}
+ Bool_t operator()(UShort_t d, Char_t r, UShort_t s, UShort_t t,
+ Float_t m, Float_t e)
+ {
+ if (m > 0 && m != AliESDFMD::kInvalidMult)
+ printf(" FMD%d%c[%2d,%3d] = %6.3f / %6.3f\n", d, r, s, t, m, e);
+ return kTRUE;
+ }
+ };
}
-//_____________________________________________________________________________
-void AliFMDReconstructor::FillESD(AliRunLoader* /*runLoader*/,
- AliESD* /*esd*/) const
+//____________________________________________________________________
+void
+AliFMDReconstructor::FillESD(TTree* /* digitsTree */,
+ TTree* /* clusterTree */,
+ AliESDEvent* esd) const
{
-// nothing to be done
+ // nothing to be done
+ // FIXME: The vertex may not be known when Reconstruct is executed,
+ // so we may have to move some of that member function here.
+ AliFMDDebug(2, ("Calling FillESD with two trees and one ESD"));
+ if (fZombie) {
+ AliWarning("I'm a zombie - cannot do anything");
+ return;
+ }
+ // fESDObj->Print();
+
+ // Fix up ESD so that only truely dead channels get the kInvalidMult flag.
+ MarkDeadChannels(fESDObj);
+
+ Double_t oldVz = fCurrentVertex;
+ GetVertex(esd);
+ if (fVertexType != kNoVertex) {
+ AliFMDDebug(2, ("Revertexing the ESD data to vz=%f (was %f)",
+ fCurrentVertex, oldVz));
+ AliFMDESDRevertexer revertexer;
+ revertexer.Revertex(fESDObj, fCurrentVertex);
+ }
+
+ if (AliDebugLevel() > 10) {
+ ESDPrinter p;
+ fESDObj->ForEach(p);
+ }
+
+ if (esd) {
+ AliFMDDebug(2, ("Writing FMD data to ESD tree"));
+ esd->SetFMDData(fESDObj);
+ }
+ if (!fDiagnostics || !esd) return;
+ static bool first = true;
+ // This is most likely NOT the event number you'd like to use. It
+ // has nothing to do with the 'real' event number.
+ // - That's OK. We just use it for the name of the directory -
+ // nothing else. Christian
+ Int_t evno = esd->GetEventNumberInFile();
+ AliFMDDebug(3, ("Writing diagnostics histograms to FMD.Diag.root/%03d",evno));
+ TFile f("FMD.Diag.root", (first ? "RECREATE" : "UPDATE"));
+ first = false;
+ f.cd();
+ TDirectory* d = f.mkdir(Form("%03d", evno),
+ Form("Diagnostics histograms for event # %d", evno));
+ d->cd();
+ if (fDiagStep1) fDiagStep1->Write();
+ if (fDiagStep2) fDiagStep2->Write();
+ if (fDiagStep3) fDiagStep3->Write();
+ if (fDiagStep4) fDiagStep4->Write();
+ if (fDiagAll) fDiagAll->Write();
+ d->Write();
+ f.Write();
+ f.Close();
+
+ if (fDiagStep1) fDiagStep1->Reset();
+ if (fDiagStep2) fDiagStep2->Reset();
+ if (fDiagStep3) fDiagStep3->Reset();
+ if (fDiagStep4) fDiagStep4->Reset();
+ if (fDiagAll) fDiagAll->Reset();
}
+//____________________________________________________________________
+void
+AliFMDReconstructor::FillESD(AliRawReader*, TTree* clusterTree,
+ AliESDEvent* esd) const
+{
+ //
+ // Forwards to above member function
+ //
+ if (fZombie) {
+ AliWarning("I'm a zombie - cannot do anything");
+ return;
+ }
+ TTree* dummy = 0;
+ FillESD(dummy, clusterTree, esd);
+}
+//____________________________________________________________________
+//
+// EOF
+//
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff