#include "AliCaloCalibPedestal.h"
#include "AliEMCALCalibData.h"
#include "AliESDCaloCluster.h"
+#include "AliEMCALUnfolding.h"
ClassImp(AliEMCALClusterizerv1)
{
// ctor with the indication of the file where header Tree and digits Tree are stored
- Init() ;
+ Init();
}
//____________________________________________________________________________
// ctor with the indication of the file where header Tree and digits Tree are stored
// use this contructor to avoid usage of Init() which uses runloader
// change needed by HLT - MP
-
}
//____________________________________________________________________________
AliEMCALClusterizerv1::AliEMCALClusterizerv1(AliEMCALGeometry* geometry, AliEMCALCalibData * calib, AliCaloCalibPedestal * caloped)
: AliEMCALClusterizer(geometry, calib, caloped)
{
- // ctor, geometry and calibration are initialized elsewhere.
-
+ // ctor, geometry and calibration are initialized elsewhere.
}
-
//____________________________________________________________________________
AliEMCALClusterizerv1::~AliEMCALClusterizerv1()
{
{
// Steering method to perform clusterization for the current event
// in AliEMCALLoader
-
+
if(strstr(option,"tim"))
gBenchmark->Start("EMCALClusterizer");
if(strstr(option,"print"))
- Print("") ;
-
+ Print("");
+
//Get calibration parameters from file or digitizer default values.
- GetCalibrationParameters() ;
-
+ GetCalibrationParameters();
+
//Get dead channel map from file or digitizer default values.
- GetCaloCalibPedestal() ;
+ GetCaloCalibPedestal();
fNumberOfECAClusters = 0;
-
- MakeClusters() ; //only the real clusters
-
- if(fToUnfold)
- MakeUnfolding() ;
-
- Int_t index ;
-
- //Evaluate position, dispersion and other RecPoint properties for EC section
+
+ MakeClusters(); //only the real clusters
+
+ if(fToUnfold){
+ fClusterUnfolding->SetInput(fNumberOfECAClusters,fRecPoints,fDigitsArr);
+ fClusterUnfolding->MakeUnfolding();
+ }
+
+ //Evaluate position, dispersion and other RecPoint properties for EC section
+ Int_t index;
for(index = 0; index < fRecPoints->GetEntries(); index++) {
- dynamic_cast<AliEMCALRecPoint *>(fRecPoints->At(index))->EvalAll(fECAW0,fDigitsArr) ;
- //For each rec.point set the distance to the nearest bad crystal
- dynamic_cast<AliEMCALRecPoint *>(fRecPoints->At(index))->EvalDistanceToBadChannels(fCaloPed);
+ AliEMCALRecPoint * rp = dynamic_cast<AliEMCALRecPoint *>(fRecPoints->At(index));
+ if(rp){
+ rp->EvalAll(fECAW0,fDigitsArr,fJustClusters);
+ //For each rec.point set the distance to the nearest bad crystal
+ if (fCaloPed)
+ rp->EvalDistanceToBadChannels(fCaloPed);
+ }
+ else AliFatal("Null rec point in list!");
}
-
- fRecPoints->Sort() ;
-
+
+ fRecPoints->Sort();
+
for(index = 0; index < fRecPoints->GetEntries(); index++) {
- (dynamic_cast<AliEMCALRecPoint *>(fRecPoints->At(index)))->SetIndexInList(index) ;
- (dynamic_cast<AliEMCALRecPoint *>(fRecPoints->At(index)))->Print();
+ AliEMCALRecPoint * rp = dynamic_cast<AliEMCALRecPoint *>(fRecPoints->At(index));
+ if(rp){
+ rp->SetIndexInList(index);
+ rp->Print();
+ }
+ else AliFatal("Null rec point in list!");
}
-
- fTreeR->Fill();
+
+ if (fTreeR)
+ fTreeR->Fill();
if(strstr(option,"deb") || strstr(option,"all"))
- PrintRecPoints(option) ;
-
+ PrintRecPoints(option);
+
AliDebug(1,Form("EMCAL Clusterizer found %d Rec Points",fRecPoints->GetEntriesFast()));
-
- fRecPoints->Delete();
-
+
if(strstr(option,"tim")){
gBenchmark->Stop("EMCALClusterizer");
printf("Exec took %f seconds for Clusterizing",
- gBenchmark->GetCpuTime("EMCALClusterizer"));
+ gBenchmark->GetCpuTime("EMCALClusterizer"));
}
}
-//____________________________________________________________________________
-Bool_t AliEMCALClusterizerv1::FindFit(AliEMCALRecPoint * recPoint, AliEMCALDigit ** maxAt,
- const Float_t* maxAtEnergy,
- Int_t nPar, Float_t * fitparameters) const
-{
- // Calls TMinuit to fit the energy distribution of a cluster with several maxima
- // The initial values for fitting procedure are set equal to the
- // positions of local maxima.
- // Cluster will be fitted as a superposition of nPar/3
- // electromagnetic showers
-
- if (fGeom==0) AliFatal("Did not get geometry from EMCALLoader");
-
- if(!gMinuit)
- gMinuit = new TMinuit(100) ;
-
- gMinuit->mncler(); // Reset Minuit's list of paramters
- gMinuit->SetPrintLevel(-1) ; // No Printout
- gMinuit->SetFCN(AliEMCALClusterizerv1::UnfoldingChiSquare) ;
- // To set the address of the minimization function
- TList * toMinuit = new TList();
- toMinuit->AddAt(recPoint,0) ;
- toMinuit->AddAt(fDigitsArr,1) ;
- toMinuit->AddAt(fGeom,2) ;
-
- gMinuit->SetObjectFit(toMinuit) ; // To tranfer pointer to UnfoldingChiSquare
-
- // filling initial values for fit parameters
- AliEMCALDigit * digit ;
-
- Int_t ierflg = 0;
- Int_t index = 0 ;
- Int_t nDigits = (Int_t) nPar / 3 ;
-
- Int_t iDigit ;
-
- for(iDigit = 0; iDigit < nDigits; iDigit++){
- digit = maxAt[iDigit];
- Double_t x = 0.;
- Double_t y = 0.;
- Double_t z = 0.;
-
- fGeom->RelPosCellInSModule(digit->GetId(), y, x, z);
-
- Float_t energy = maxAtEnergy[iDigit] ;
-
- gMinuit->mnparm(index, "x", x, 0.1, 0, 0, ierflg) ;
- index++ ;
- if(ierflg != 0){
- Error("FindFit", "EMCAL Unfolding Unable to set initial value for fit procedure : x = %f", x ) ;
- return kFALSE;
- }
- gMinuit->mnparm(index, "z", z, 0.1, 0, 0, ierflg) ;
- index++ ;
- if(ierflg != 0){
- Error("FindFit", "EMCAL Unfolding Unable to set initial value for fit procedure : z = %f", z) ;
- return kFALSE;
- }
- gMinuit->mnparm(index, "Energy", energy , 0.05*energy, 0., 4.*energy, ierflg) ;
- index++ ;
- if(ierflg != 0){
- Error("FindFit", "EMCAL Unfolding Unable to set initial value for fit procedure : energy = %f", energy) ;
- return kFALSE;
- }
- }
-
- Double_t p0 = 0.1 ; // "Tolerance" Evaluation stops when EDM = 0.0001*p0 ;
- // The number of function call slightly depends on it.
- //Double_t p1 = 1.0 ;
- Double_t p2 = 0.0 ;
-
- gMinuit->mnexcm("SET STR", &p2, 0, ierflg) ; // force TMinuit to reduce function calls
- // gMinuit->mnexcm("SET GRA", &p1, 1, ierflg) ; // force TMinuit to use my gradient
- gMinuit->SetMaxIterations(5);
- gMinuit->mnexcm("SET NOW", &p2 , 0, ierflg) ; // No Warnings
- gMinuit->mnexcm("MIGRAD", &p0, 0, ierflg) ; // minimize
-
- if(ierflg == 4){ // Minimum not found
- Error("FindFit", "EMCAL Unfolding Fit not converged, cluster abandoned " ) ;
- return kFALSE ;
- }
- for(index = 0; index < nPar; index++){
- Double_t err = 0. ;
- Double_t val = 0. ;
- gMinuit->GetParameter(index, val, err) ; // Returns value and error of parameter index
- fitparameters[index] = val ;
- }
-
- delete toMinuit ;
- return kTRUE;
-
-}
-
//____________________________________________________________________________
Int_t AliEMCALClusterizerv1::AreNeighbours(AliEMCALDigit * d1, AliEMCALDigit * d2, Bool_t & shared) const
{
- // Gives the neighbourness of two digits = 0 are not neighbour ; continue searching
- // = 1 are neighbour
- // = 2 is in different SM; continue searching
- // In case it is in different SM, but same phi rack, check if neigbours at eta=0
- // neighbours are defined as digits having at least a common side
- // The order of d1 and d2 is important: first (d1) should be a digit already in a cluster
- // which is compared to a digit (d2) not yet in a cluster
-
- static Int_t nSupMod1=0, nModule1=0, nIphi1=0, nIeta1=0, iphi1=0, ieta1=0;
- static Int_t nSupMod2=0, nModule2=0, nIphi2=0, nIeta2=0, iphi2=0, ieta2=0;
-
- shared = kFALSE;
-
- fGeom->GetCellIndex(d1->GetId(), nSupMod1,nModule1,nIphi1,nIeta1);
- fGeom->GetCellIndex(d2->GetId(), nSupMod2,nModule2,nIphi2,nIeta2);
- fGeom->GetCellPhiEtaIndexInSModule(nSupMod1,nModule1,nIphi1,nIeta1, iphi1,ieta1);
- fGeom->GetCellPhiEtaIndexInSModule(nSupMod2,nModule2,nIphi2,nIeta2, iphi2,ieta2);
-
- //If different SM, check if they are in the same phi, then consider cells close to eta=0 as neighbours; May 2010
- if(nSupMod1 != nSupMod2 ) {
- //Check if the 2 SM are in the same PHI position (0,1), (2,3), ...
- Float_t smPhi1 = fGeom->GetEMCGeometry()->GetPhiCenterOfSM(nSupMod1);
- Float_t smPhi2 = fGeom->GetEMCGeometry()->GetPhiCenterOfSM(nSupMod2);
-
- if(!TMath::AreEqualAbs(smPhi1, smPhi2, 1e-3)) return 2; //Not phi rack equal, not neighbours
-
- // In case of a shared cluster, index of SM in C side, columns start at 48 and ends at 48*2
- // C Side impair SM, nSupMod%2=1; A side pair SM nSupMod%2=0
- if(nSupMod1%2) ieta1+=AliEMCALGeoParams::fgkEMCALCols;
- else ieta2+=AliEMCALGeoParams::fgkEMCALCols;
-
- shared = kTRUE; // maybe a shared cluster, we know this later, set it for the moment.
-
- }//Different SM, same phi
-
- Int_t rowdiff = TMath::Abs(iphi1 - iphi2);
- Int_t coldiff = TMath::Abs(ieta1 - ieta2) ;
-
- // neighbours with at least common side; May 11, 2007
- if ((coldiff==0 && TMath::Abs(rowdiff)==1) || (rowdiff==0 && TMath::Abs(coldiff)==1)) {
- //Diagonal?
- //if ((coldiff==0 && TMath::Abs(rowdiff==1)) || (rowdiff==0 && TMath::Abs(coldiff==1)) || (TMath::Abs(rowdiff)==1 && TMath::Abs(coldiff==1))) rv = 1;
-
- if (gDebug == 2)
- printf("AliEMCALClusterizerv1::AreNeighbours(): id1=%d, (row %d, col %d) ; id2=%d, (row %d, col %d), shared %d \n",
- d1->GetId(), iphi1,ieta1, d2->GetId(), iphi2,ieta2, shared);
-
- return 1;
- }//Neighbours
- else {
- shared = kFALSE;
- return 2 ;
- }//Not neighbours
+ // Gives the neighbourness of two digits = 0 are not neighbour; continue searching
+ // = 1 are neighbour
+ // = 2 is in different SM; continue searching
+ // In case it is in different SM, but same phi rack, check if neigbours at eta=0
+ // neighbours are defined as digits having at least a common side
+ // The order of d1 and d2 is important: first (d1) should be a digit already in a cluster
+ // which is compared to a digit (d2) not yet in a cluster
+
+ Int_t nSupMod1=0, nModule1=0, nIphi1=0, nIeta1=0, iphi1=0, ieta1=0;
+ Int_t nSupMod2=0, nModule2=0, nIphi2=0, nIeta2=0, iphi2=0, ieta2=0;
+
+ shared = kFALSE;
+
+ fGeom->GetCellIndex(d1->GetId(), nSupMod1,nModule1,nIphi1,nIeta1);
+ fGeom->GetCellIndex(d2->GetId(), nSupMod2,nModule2,nIphi2,nIeta2);
+ fGeom->GetCellPhiEtaIndexInSModule(nSupMod1,nModule1,nIphi1,nIeta1, iphi1,ieta1);
+ fGeom->GetCellPhiEtaIndexInSModule(nSupMod2,nModule2,nIphi2,nIeta2, iphi2,ieta2);
+
+ //If different SM, check if they are in the same phi, then consider cells close to eta=0 as neighbours; May 2010
+ if (nSupMod1 != nSupMod2 ) {
+ //Check if the 2 SM are in the same PHI position (0,1), (2,3), ...
+ Float_t smPhi1 = fGeom->GetEMCGeometry()->GetPhiCenterOfSM(nSupMod1);
+ Float_t smPhi2 = fGeom->GetEMCGeometry()->GetPhiCenterOfSM(nSupMod2);
+
+ if(!TMath::AreEqualAbs(smPhi1, smPhi2, 1e-3)) return 2; //Not phi rack equal, not neighbours
+
+ // In case of a shared cluster, index of SM in C side, columns start at 48 and ends at 48*2
+ // C Side impair SM, nSupMod%2=1; A side pair SM nSupMod%2=0
+ if(nSupMod1%2) ieta1+=AliEMCALGeoParams::fgkEMCALCols;
+ else ieta2+=AliEMCALGeoParams::fgkEMCALCols;
+
+ shared = kTRUE; // maybe a shared cluster, we know this later, set it for the moment.
+ } //Different SM, same phi
+
+ Int_t rowdiff = TMath::Abs(iphi1 - iphi2);
+ Int_t coldiff = TMath::Abs(ieta1 - ieta2);
+
+ // neighbours with at least common side; May 11, 2007
+ if ((coldiff==0 && TMath::Abs(rowdiff)==1) || (rowdiff==0 && TMath::Abs(coldiff)==1)) {
+ //Diagonal?
+ //if ((coldiff==0 && TMath::Abs(rowdiff==1)) || (rowdiff==0 && TMath::Abs(coldiff==1)) || (TMath::Abs(rowdiff)==1 && TMath::Abs(coldiff==1))) rv = 1;
+
+ if (gDebug == 2)
+ printf("AliEMCALClusterizerv1::AreNeighbours(): id1=%d, (row %d, col %d) ; id2=%d, (row %d, col %d), shared %d \n",
+ d1->GetId(), iphi1,ieta1, d2->GetId(), iphi2,ieta2, shared);
+ return 1;
+ } //Neighbours
+ else {
+ shared = kFALSE;
+ return 2;
+ } //Not neighbours
}
//____________________________________________________________________________
// Steering method to construct the clusters stored in a list of Reconstructed Points
// A cluster is defined as a list of neighbour digits
// Mar 03, 2007 by PAI
-
+
if (fGeom==0) AliFatal("Did not get geometry from EMCALLoader");
-
- fRecPoints->Clear();
-
- // Set up TObjArray with pointers to digits to work on
+
+ fRecPoints->Delete();
+
+ // Set up TObjArray with pointers to digits to work on calibrated digits
TObjArray *digitsC = new TObjArray();
- TIter nextdigit(fDigitsArr);
AliEMCALDigit *digit;
- while ( (digit = dynamic_cast<AliEMCALDigit*>(nextdigit())) ) {
- digitsC->AddLast(digit);
- }
-
- double e = 0.0, ehs = 0.0;
- TIter nextdigitC(digitsC);
- while ( (digit = dynamic_cast<AliEMCALDigit *>(nextdigitC())) ) { // clean up digits
- e = Calibrate(digit->GetAmplitude(), digit->GetTime(),digit->GetId());//Time or TimeR?
- if ( e < fMinECut) //|| digit->GetTimeR() > fTimeCut ) // time window of cell checked in calibrate
- digitsC->Remove(digit);
- else
- ehs += e;
+ Float_t dEnergyCalibrated = 0.0, ehs = 0.0, time = 0.0;
+ TIter nextdigit(fDigitsArr);
+ while ( (digit = dynamic_cast<AliEMCALDigit *>(nextdigit())) ) { // calibrate and clean up digits
+ dEnergyCalibrated = digit->GetAmplitude();
+ time = digit->GetTime();
+ Calibrate(dEnergyCalibrated,time,digit->GetId());
+ digit->SetCalibAmp(dEnergyCalibrated);
+ digit->SetTime(time);
+
+ if ( dEnergyCalibrated < fMinECut || time > fTimeMax || time < fTimeMin ){
+ continue;
+ }
+ else if (!fGeom->CheckAbsCellId(digit->GetId()))
+ continue;
+ else{
+ ehs += dEnergyCalibrated;
+ digitsC->AddLast(digit);
+ }
}
+
AliDebug(1,Form("MakeClusters: Number of digits %d -> (e %f), ehs %f\n",
- fDigitsArr->GetEntries(),fMinECut,ehs));
-
- nextdigitC.Reset();
-
+ fDigitsArr->GetEntries(),fMinECut,ehs));
+
+ TIter nextdigitC(digitsC);
while ( (digit = dynamic_cast<AliEMCALDigit *>(nextdigitC())) ) { // scan over the list of digitsC
TArrayI clusterECAdigitslist(fDigitsArr->GetEntries());
-
- if(fGeom->CheckAbsCellId(digit->GetId()) && (Calibrate(digit->GetAmplitude(), digit->GetTime(),digit->GetId()) > fECAClusteringThreshold ) ){
+ dEnergyCalibrated = digit->GetCalibAmp();
+ time = digit->GetTime();
+ if(fGeom->CheckAbsCellId(digit->GetId()) && ( dEnergyCalibrated > fECAClusteringThreshold ) ){
// start a new Tower RecPoint
- if(fNumberOfECAClusters >= fRecPoints->GetSize()) fRecPoints->Expand(2*fNumberOfECAClusters+1) ;
-
- AliEMCALRecPoint *recPoint = new AliEMCALRecPoint("") ;
- fRecPoints->AddAt(recPoint, fNumberOfECAClusters) ;
- recPoint = dynamic_cast<AliEMCALRecPoint *>(fRecPoints->At(fNumberOfECAClusters)) ;
- fNumberOfECAClusters++ ;
-
- recPoint->SetClusterType(AliESDCaloCluster::kEMCALClusterv1);
-
- recPoint->AddDigit(*digit, Calibrate(digit->GetAmplitude(), digit->GetTime(),digit->GetId()),kFALSE) ; //Time or TimeR?
- TObjArray clusterDigits;
- clusterDigits.AddLast(digit);
- digitsC->Remove(digit) ;
-
- AliDebug(1,Form("MakeClusters: OK id = %d, ene = %f , cell.th. = %f \n", digit->GetId(),
- Calibrate(digit->GetAmplitude(),digit->GetTime(),digit->GetId()), fECAClusteringThreshold)); //Time or TimeR?
- Float_t time = digit->GetTime();//Time or TimeR?
- // Grow cluster by finding neighbours
- TIter nextClusterDigit(&clusterDigits);
- while ( (digit = dynamic_cast<AliEMCALDigit*>(nextClusterDigit())) ) { // scan over digits in cluster
- TIter nextdigitN(digitsC);
- AliEMCALDigit *digitN = 0; // digi neighbor
- while ( (digitN = (AliEMCALDigit *)nextdigitN()) ) { // scan over all digits to look for neighbours
-
- //Do not add digits with too different time
- Bool_t shared = kFALSE;//cluster shared by 2 SuperModules?
- if(TMath::Abs(time - digitN->GetTime()) > fTimeCut ) continue; //Time or TimeR?
- if (AreNeighbours(digit, digitN, shared)==1) { // call (digit,digitN) in THAT order !!!!!
- recPoint->AddDigit(*digitN, Calibrate(digitN->GetAmplitude(), digitN->GetTime(), digitN->GetId()),shared) ;//Time or TimeR?
- clusterDigits.AddLast(digitN) ;
- digitsC->Remove(digitN) ;
- } // if(ineb==1)
- } // scan over digits
- } // scan over digits already in cluster
-
- if(recPoint)
+ if(fNumberOfECAClusters >= fRecPoints->GetSize()) fRecPoints->Expand(2*fNumberOfECAClusters+1);
+
+ AliEMCALRecPoint *recPoint = new AliEMCALRecPoint("");
+ fRecPoints->AddAt(recPoint, fNumberOfECAClusters);
+ recPoint = dynamic_cast<AliEMCALRecPoint *>(fRecPoints->At(fNumberOfECAClusters));
+ if (recPoint) {
+ fNumberOfECAClusters++;
+
+ recPoint->SetClusterType(AliVCluster::kEMCALClusterv1);
+ recPoint->AddDigit(*digit, digit->GetCalibAmp(), kFALSE); //Time or TimeR?
+ TObjArray clusterDigits;
+ clusterDigits.AddLast(digit);
+ digitsC->Remove(digit);
+
+ AliDebug(1,Form("MakeClusters: OK id = %d, ene = %f , cell.th. = %f \n", digit->GetId(), dEnergyCalibrated, fECAClusteringThreshold)); //Time or TimeR?
+
+ // Grow cluster by finding neighbours
+ TIter nextClusterDigit(&clusterDigits);
+
+ while ( (digit = dynamic_cast<AliEMCALDigit*>(nextClusterDigit())) ) { // scan over digits in cluster
+ TIter nextdigitN(digitsC);
+ AliEMCALDigit *digitN = 0; // digi neighbor
+ while ( (digitN = (AliEMCALDigit *)nextdigitN()) ) { // scan over all digits to look for neighbours
+ //Do not add digits with too different time
+ Bool_t shared = kFALSE;//cluster shared by 2 SuperModules?
+ if(TMath::Abs(time - digitN->GetTime()) > fTimeCut ) continue; //Time or TimeR?
+ if (AreNeighbours(digit, digitN, shared)==1) { // call (digit,digitN) in THAT order !!!!!
+ recPoint->AddDigit(*digitN, digitN->GetCalibAmp(), shared);
+ clusterDigits.AddLast(digitN);
+ digitsC->Remove(digitN);
+ } // if(ineb==1)
+ } // scan over digits
+ } // scan over digits already in cluster
+
AliDebug(2,Form("MakeClusters: %d digitd, energy %f \n", clusterDigits.GetEntries(), recPoint->GetEnergy()));
+ }//recpoint
+ else AliFatal("Null recpoint in array!");
} // If seed found
} // while digit
-
- delete digitsC ;
- AliDebug(1,Form("total no of clusters %d from %d digits",fNumberOfECAClusters,fDigitsArr->GetEntriesFast()));
-}
-
-//____________________________________________________________________________
-void AliEMCALClusterizerv1::MakeUnfolding()
-{
- // Unfolds clusters using the shape of an ElectroMagnetic shower
- // Performs unfolding of all clusters
-
- if(fNumberOfECAClusters > 0){
- if (fGeom==0)
- AliFatal("Did not get geometry from EMCALLoader") ;
- Int_t nModulesToUnfold = fGeom->GetNCells();
-
- Int_t numberofNotUnfolded = fNumberOfECAClusters ;
- Int_t index ;
- for(index = 0 ; index < numberofNotUnfolded ; index++){
-
- AliEMCALRecPoint * recPoint = dynamic_cast<AliEMCALRecPoint *>( fRecPoints->At(index) ) ;
-
- TVector3 gpos;
- Int_t absId = -1;
- recPoint->GetGlobalPosition(gpos);
- fGeom->GetAbsCellIdFromEtaPhi(gpos.Eta(),gpos.Phi(),absId);
- if(absId > nModulesToUnfold)
- break ;
-
- Int_t nMultipl = recPoint->GetMultiplicity() ;
- AliEMCALDigit ** maxAt = new AliEMCALDigit*[nMultipl] ;
- Float_t * maxAtEnergy = new Float_t[nMultipl] ;
- Int_t nMax = recPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy,fECALocMaxCut,fDigitsArr) ;
-
- if( nMax > 1 ) { // if cluster is very flat (no pronounced maximum) then nMax = 0
- UnfoldCluster(recPoint, nMax, maxAt, maxAtEnergy) ;
- fRecPoints->Remove(recPoint);
- fRecPoints->Compress() ;
- index-- ;
- fNumberOfECAClusters-- ;
- numberofNotUnfolded-- ;
- }
- else{
- recPoint->SetNExMax(1) ; //Only one local maximum
- }
-
- delete[] maxAt ;
- delete[] maxAtEnergy ;
- }
- }
- // End of Unfolding of clusters
-}
-
-//____________________________________________________________________________
-Double_t AliEMCALClusterizerv1::ShowerShape(Double_t x, Double_t y)
-{
- // Shape of the shower
- // If you change this function, change also the gradient evaluation in ChiSquare()
-
- Double_t r = sqrt(x*x+y*y);
- Double_t r133 = TMath::Power(r, 1.33) ;
- Double_t r669 = TMath::Power(r, 6.69) ;
- Double_t shape = TMath::Exp( -r133 * (1. / (1.57 + 0.0860 * r133) - 0.55 / (1 + 0.000563 * r669) ) ) ;
- return shape ;
-}
-
-//____________________________________________________________________________
-void AliEMCALClusterizerv1::UnfoldCluster(AliEMCALRecPoint * iniTower,
- Int_t nMax,
- AliEMCALDigit ** maxAt,
- Float_t * maxAtEnergy)
-{
- // Performs the unfolding of a cluster with nMax overlapping showers
- Int_t nPar = 3 * nMax ;
- Float_t * fitparameters = new Float_t[nPar] ;
-
- if (fGeom==0)
- AliFatal("Did not get geometry from EMCALLoader") ;
-
- Bool_t rv = FindFit(iniTower, maxAt, maxAtEnergy, nPar, fitparameters) ;
- if( !rv ) {
- // Fit failed, return and remove cluster
- iniTower->SetNExMax(-1) ;
- delete[] fitparameters ;
- return ;
- }
-
- // create unfolded rec points and fill them with new energy lists
- // First calculate energy deposited in each sell in accordance with
- // fit (without fluctuations): efit[]
- // and later correct this number in acordance with actual energy
- // deposition
-
- Int_t nDigits = iniTower->GetMultiplicity() ;
- Float_t * efit = new Float_t[nDigits] ;
- Double_t xDigit=0.,yDigit=0.,zDigit=0. ;
- Float_t xpar=0.,zpar=0.,epar=0. ;
-
- AliEMCALDigit * digit = 0 ;
- Int_t * digitsList = iniTower->GetDigitsList() ;
+ delete digitsC;
- Int_t iparam = 0 ;
- Int_t iDigit ;
- for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){
- digit = dynamic_cast<AliEMCALDigit*>( fDigitsArr->At(digitsList[iDigit] ) ) ;
- fGeom->RelPosCellInSModule(digit->GetId(), yDigit, xDigit, zDigit);
- efit[iDigit] = 0;
-
- while(iparam < nPar ){
- xpar = fitparameters[iparam] ;
- zpar = fitparameters[iparam+1] ;
- epar = fitparameters[iparam+2] ;
- iparam += 3 ;
- efit[iDigit] += epar * ShowerShape(xDigit - xpar,zDigit - zpar) ;
- }
- }
-
-
- // Now create new RecPoints and fill energy lists with efit corrected to fluctuations
- // so that energy deposited in each cell is distributed between new clusters proportionally
- // to its contribution to efit
-
- Float_t * energiesList = iniTower->GetEnergiesList() ;
- Float_t ratio = 0 ;
-
- iparam = 0 ;
- while(iparam < nPar ){
- xpar = fitparameters[iparam] ;
- zpar = fitparameters[iparam+1] ;
- epar = fitparameters[iparam+2] ;
- iparam += 3 ;
-
- AliEMCALRecPoint * recPoint = 0 ;
-
- if(fNumberOfECAClusters >= fRecPoints->GetSize())
- fRecPoints->Expand(2*fNumberOfECAClusters) ;
-
- (*fRecPoints)[fNumberOfECAClusters] = new AliEMCALRecPoint("") ;
- recPoint = dynamic_cast<AliEMCALRecPoint *>( fRecPoints->At(fNumberOfECAClusters) ) ;
- fNumberOfECAClusters++ ;
- recPoint->SetNExMax((Int_t)nPar/3) ;
-
- Float_t eDigit = 0. ;
- for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){
- digit = dynamic_cast<AliEMCALDigit*>( fDigitsArr->At( digitsList[iDigit] ) ) ;
- fGeom->RelPosCellInSModule(digit->GetId(), yDigit, xDigit, zDigit);
-
- ratio = epar * ShowerShape(xDigit - xpar,zDigit - zpar) / efit[iDigit] ;
- eDigit = energiesList[iDigit] * ratio ;
- recPoint->AddDigit( *digit, eDigit, kFALSE ) ; //FIXME, need to study the shared case
- }
- }
-
- delete[] fitparameters ;
- delete[] efit ;
-
-}
-
-//_____________________________________________________________________________
-void AliEMCALClusterizerv1::UnfoldingChiSquare(Int_t & nPar, Double_t * Grad,
- Double_t & fret,
- Double_t * x, Int_t iflag)
-{
- // Calculates the Chi square for the cluster unfolding minimization
- // Number of parameters, Gradient, Chi squared, parameters, what to do
-
- TList * toMinuit = dynamic_cast<TList*>( gMinuit->GetObjectFit() ) ;
-
- AliEMCALRecPoint * recPoint = dynamic_cast<AliEMCALRecPoint*>( toMinuit->At(0) ) ;
- TClonesArray * digits = dynamic_cast<TClonesArray*>( toMinuit->At(1) ) ;
- // A bit buggy way to get an access to the geometry
- // To be revised!
- AliEMCALGeometry *geom = dynamic_cast<AliEMCALGeometry *>(toMinuit->At(2));
-
- Int_t * digitsList = recPoint->GetDigitsList() ;
-
- Int_t nOdigits = recPoint->GetDigitsMultiplicity() ;
-
- Float_t * energiesList = recPoint->GetEnergiesList() ;
-
- fret = 0. ;
- Int_t iparam ;
-
- if(iflag == 2)
- for(iparam = 0 ; iparam < nPar ; iparam++)
- Grad[iparam] = 0 ; // Will evaluate gradient
-
- Double_t efit = 0. ;
-
- AliEMCALDigit * digit ;
- Int_t iDigit ;
-
- for( iDigit = 0 ; iDigit < nOdigits ; iDigit++) {
-
- digit = dynamic_cast<AliEMCALDigit*>( digits->At( digitsList[iDigit] ) );
-
- Double_t xDigit=0 ;
- Double_t zDigit=0 ;
- Double_t yDigit=0 ;//not used yet, assumed to be 0
-
- geom->RelPosCellInSModule(digit->GetId(), yDigit, xDigit, zDigit);
-
- if(iflag == 2){ // calculate gradient
- Int_t iParam = 0 ;
- efit = 0. ;
- while(iParam < nPar ){
- Double_t dx = (xDigit - x[iParam]) ;
- iParam++ ;
- Double_t dz = (zDigit - x[iParam]) ;
- iParam++ ;
- efit += x[iParam] * ShowerShape(dx,dz) ;
- iParam++ ;
- }
- Double_t sum = 2. * (efit - energiesList[iDigit]) / energiesList[iDigit] ; // Here we assume, that sigma = sqrt(E)
- iParam = 0 ;
- while(iParam < nPar ){
- Double_t xpar = x[iParam] ;
- Double_t zpar = x[iParam+1] ;
- Double_t epar = x[iParam+2] ;
- Double_t dr = TMath::Sqrt( (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) );
- Double_t shape = sum * ShowerShape(xDigit - xpar,zDigit - zpar) ;
- Double_t r133 = TMath::Power(dr, 1.33);
- Double_t r669 = TMath::Power(dr,6.69);
- Double_t deriv =-1.33 * TMath::Power(dr,0.33)*dr * ( 1.57 / ( (1.57 + 0.0860 * r133) * (1.57 + 0.0860 * r133) )
- - 0.55 / (1 + 0.000563 * r669) / ( (1 + 0.000563 * r669) * (1 + 0.000563 * r669) ) ) ;
-
- Grad[iParam] += epar * shape * deriv * (xpar - xDigit) ; // Derivative over x
- iParam++ ;
- Grad[iParam] += epar * shape * deriv * (zpar - zDigit) ; // Derivative over z
- iParam++ ;
- Grad[iParam] += shape ; // Derivative over energy
- iParam++ ;
- }
- }
- efit = 0;
- iparam = 0 ;
-
-
- while(iparam < nPar ){
- Double_t xpar = x[iparam] ;
- Double_t zpar = x[iparam+1] ;
- Double_t epar = x[iparam+2] ;
- iparam += 3 ;
- efit += epar * ShowerShape(xDigit - xpar,zDigit - zpar) ;
- }
-
- fret += (efit-energiesList[iDigit])*(efit-energiesList[iDigit])/energiesList[iDigit] ;
- // Here we assume, that sigma = sqrt(E)
- }
+ AliDebug(1,Form("total no of clusters %d from %d digits",fNumberOfECAClusters,fDigitsArr->GetEntriesFast()));
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff