//_________________________________________________________________________
// Implementation version v1 of the PHOS particle identifier
// Particle identification based on the
-// - CPV information,
-// - Preshower information (in MIXT or GPS2 geometries)
-// - shower width.
+// - RCPV: distance from CPV recpoint to EMCA recpoint.
+// - TOF
+// - PCA: Principal Components Analysis..
+// The identified particle has an identification number corresponding
+// to a 9 bits number:
+// -Bit 0 to 2: bit set if RCPV > CpvEmcDistance (each bit corresponds
+// to a different efficiency-purity point of the photon identification)
+// -Bit 3 to 5: bit set if TOF < TimeGate (each bit corresponds
+// to a different efficiency-purity point of the photon identification)
+// -Bit 6 to 9: bit set if Principal Components are
+// inside an ellipse defined by the parameters a, b, c, x0 and y0.
+// (each bit corresponds to a different efficiency-purity point of the
+// photon identification)
+// The PCA (Principal components analysis) needs a file that contains
+// a previous analysis of the correlations between the particles. This
+// file is $ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root. Analysis done for
+// energies between 0.5 and 100 GeV.
+// A calibrated energy is calculated. The energy of the reconstructed
+// cluster is corrected with the formula A + B * E + C * E^2, whose
+// parameters where obtained through the study of the reconstructed
+// energy distribution of monoenergetic photons.
//
-// CPV or Preshower clusters should be closer in PHOS plane than fCpvEmcDistance (in cm).
-// This parameter can be set by method SetCpvtoEmcDistanceCut(Float_t cut)
-//
-// One can set desirable ID method by the function SetIdentificationMethod(option).
-// Presently the following options can be used together or separately :
-// - "disp": use dispersion cut on shower width
-// (width can be set by method SetDispersionCut(Float_t cut)
-// - "ell" : use cut on the axis of the ellipse, drawn around shower
-// (this cut can be changed by SetShowerProfileCut(char* formula),
-// where formula - any function of two variables f(lambda[0],lambda[1]).
-// Shower is considered as EM if f() > 0 )
-// One can visualize current cuts calling method PlotDispersionCuts().
+// All the parameters (RCPV(2 rows-3 columns),TOF(1r-3c),PCA(5r-4c)
+// and calibration(1r-3c))are stored in a file called
+// $ALICE_ROOT/PHOS/Parameters.dat. Each time that AliPHOSPIDv1 is
+// initialized, this parameters are copied to a Matrix (9,4), a
+// TMatrixD object.
//
// use case:
-// root [0] AliPHOSPIDv1 * p1 = new AliPHOSPIDv1("galice.root")
-// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// root [1] p1->SetIdentificationMethod("disp ellipse")
-// root [2] p1->ExecuteTask()
-// root [3] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","ts1")
+// root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root")
// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// // reading headers from file galice1.root and TrackSegments
-// // with title "ts1"
-// root [4] p2->SetRecParticlesBranch("rp1")
-// // set file name for the branch RecParticles
-// root [5] p2->ExecuteTask("deb all time")
-// // available options
-// // "deb" - prints # of reconstructed particles
-// // "deb all" - prints # and list of RecParticles
-// // "time" - prints benchmarking results
+// // reading headers from file galice1.root and create RecParticles
+ // TrackSegments and RecPoints are used
+// // set file name for the branch RecParticles
+// root [1] p->ExecuteTask("deb all time")
+// // available options
+// // "deb" - prints # of reconstructed particles
+// // "deb all" - prints # and list of RecParticles
+// // "time" - prints benchmarking results
//
-//*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) &
-// Dmitri Peressounko (SUBATECH & Kurchatov Institute)
-// Complitely redesined by Dmitri Peressounko, March 2001
+// root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1",kTRUE)
+// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
+// //Split mode.
+// root [3] p2->ExecuteTask()
+//
+
+//*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) &
+// Gustavo Conesa April 2002
+// PCA redesigned by Gustavo Conesa October 2002:
+// The way of using the PCA has changed. Instead of 2
+// files with the PCA, each one with different energy ranges
+// of application, we use the wide one (0.5-100 GeV), and instead
+// of fixing 3 ellipses for different ranges of energy, it has been
+// studied the dependency of the ellipses parameters with the
+// energy, and they are implemented in the code as a funtion
+// of the energy.
+//
+//
+//
// --- ROOT system ---
#include "TROOT.h"
#include "TTree.h"
#include "TFile.h"
-#include "TF2.h"
-#include "TFormula.h"
-#include "TCanvas.h"
-#include "TFolder.h"
#include "TSystem.h"
#include "TBenchmark.h"
+#include "TMatrixD.h"
+#include "TPrincipal.h"
+
// --- Standard library ---
-#include <iostream.h>
-#include <iomanip.h>
+//#include <Riostream.h>
// --- AliRoot header files ---
-#include "AliRun.h"
#include "AliGenerator.h"
-#include "AliPHOS.h"
#include "AliPHOSPIDv1.h"
-#include "AliPHOSClusterizerv1.h"
#include "AliPHOSTrackSegment.h"
-#include "AliPHOSTrackSegmentMakerv1.h"
#include "AliPHOSRecParticle.h"
#include "AliPHOSGeometry.h"
#include "AliPHOSGetter.h"
AliPHOSPIDv1::AliPHOSPIDv1():AliPHOSPID()
{
// default ctor
- fFormula = 0 ;
- fDispersion = 0. ;
- fCpvEmcDistance = 0 ;
- fHeaderFileName = "" ;
- fTrackSegmentsTitle= "" ;
- fRecPointsTitle = "" ;
- fRecParticlesTitle = "" ;
- fIDOptions = "" ;
+
+ InitParameters() ;
+ fDefaultInit = kTRUE ;
+
}
//____________________________________________________________________________
-AliPHOSPIDv1::AliPHOSPIDv1(const char * headerFile,const char * name) : AliPHOSPID(headerFile, name)
+AliPHOSPIDv1::AliPHOSPIDv1(AliPHOSPIDv1 & pid ):AliPHOSPID(pid)
{
- //ctor with the indication on where to look for the track segments
+ // ctor
+ InitParameters() ;
- fFormula = new TFormula("LambdaCuts","(x>1)*(x<2.5)*(y>0)*(y<x)") ;
- fDispersion = 2.0 ;
- fCpvEmcDistance = 3.0 ;
-
- fHeaderFileName = GetTitle() ;
- fTrackSegmentsTitle = GetName() ;
- fRecPointsTitle = GetName() ;
- fRecParticlesTitle = GetName() ;
- fIDOptions = "" ;
+ Init() ;
+ fDefaultInit = kFALSE ;
+
+}
+
+//____________________________________________________________________________
+AliPHOSPIDv1::AliPHOSPIDv1(const char * headerFile,const char * name, const Bool_t toSplit)
+:AliPHOSPID(headerFile, name,toSplit)
+{
+ //ctor with the indication on where to look for the track segments
- TString tempo(GetName()) ;
- tempo.Append(Version()) ;
- SetName(tempo.Data()) ;
-
+ InitParameters() ;
+
Init() ;
+ fDefaultInit = kFALSE ;
}
//____________________________________________________________________________
AliPHOSPIDv1::~AliPHOSPIDv1()
{
- //dtor
+ // dtor
+ // fDefaultInit = kTRUE if PID created by default ctor (to get just the parameters)
+
+ delete [] fX ; // Principal input
+ delete [] fP ; // Principal components
+ delete [] fPPi0 ; // Pi0 Principal components
+
+ if (!fDefaultInit) {
+// AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+ // remove the task from the folder list
+// gime->RemoveTask("P",GetName()) ;
+// TString name(GetName()) ;
+// name.ReplaceAll("pid", "clu") ;
+// gime->RemoveTask("C",name) ;
+
+// // remove the data from the folder list
+// name = GetName() ;
+// name.Remove(name.Index(":")) ;
+// gime->RemoveObjects("RE", name) ; // EMCARecPoints
+// gime->RemoveObjects("RC", name) ; // CPVRecPoints
+// gime->RemoveObjects("T", name) ; // TrackSegments
+// gime->RemoveObjects("P", name) ; // RecParticles
+
+// // Delete gAlice
+// gime->CloseFile() ;
+
+ fSplitFile = 0 ;
+ }
}
//____________________________________________________________________________
-Bool_t AliPHOSPIDv1::ReadTrackSegments(Int_t event)
+const TString AliPHOSPIDv1::BranchName() const
+{
+ // gives the name of the current branch
+ TString branchName(GetName() ) ;
+ branchName.Remove(branchName.Index(Version())-1) ;
+ return branchName ;
+}
+
+//____________________________________________________________________________
+void AliPHOSPIDv1::Init()
{
- // Reads TrackSegments an extracts the title of the RecPoints
- // branch from which TS were made of.
- // Then reads both TrackSegments and RecPoints.
+ // Make all memory allocations that are not possible in default constructor
+ // Add the PID task to the list of PHOS tasks
- //Fist read Track Segment Branch and extract RecPointsBranch from fTSMaker
+ if ( strcmp(GetTitle(), "") == 0 )
+ SetTitle("galice.root") ;
- gAlice->GetEvent(event) ;
- gAlice->SetEvent(event) ;
+ TString branchname(GetName()) ;
+ branchname.Remove(branchname.Index(Version())-1) ;
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(),branchname.Data(),fToSplit ) ;
- // Get TreeR header from file
- if(gAlice->TreeR()==0){
- cerr << "ERROR: AliPHOSPIDv1::ReadTrackSegments -> There is no Reconstruction Tree" << endl;
- return kFALSE;
- }
-
- // Find TrackSegments
- TBranch * tsbranch = 0;
- TBranch * tsmakerbranch = 0;
- TObjArray * lob = (TObjArray*)gAlice->TreeR()->GetListOfBranches() ;
- TIter next(lob) ;
- TBranch * branch = 0 ;
- Bool_t phostsfound = kFALSE, tsmakerfound = kFALSE ;
-
- TString taskName(GetName()) ;
- taskName.ReplaceAll(Version(), "") ;
-
- while ( (branch = (TBranch*)next()) && (!phostsfound || !tsmakerfound) ) {
- if ( (strcmp(branch->GetName(), "PHOSTS")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) ) {
- phostsfound = kTRUE ;
- tsbranch = branch ;
-
- } else if ( (strcmp(branch->GetName(), "AliPHOSTrackSegmentMaker")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) ) {
- tsmakerfound = kTRUE ;
- tsmakerbranch = branch ;
- }
- }
- if ( !phostsfound || !tsmakerfound ) {
- cerr << "WARNING: AliPHOSPIDv1::ReadTrackSegments -> TrackSegments and/or TrackSegmentMaker branch with name " << taskName.Data()
- << " not found" << endl ;
- return kFALSE ;
- }
-
- AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
-
- TClonesArray * trackSegments = gime->TrackSegments() ;
- trackSegments->Clear() ;
- tsbranch->SetAddress(&trackSegments) ;
-
- AliPHOSTrackSegmentMaker * tsmaker = 0 ;
- tsmakerbranch->SetAddress(&tsmaker) ;
- tsmakerbranch->GetEntry(0) ;
- TString tsmakerName( fRecParticlesTitle ) ;
- tsmakerName.Append(tsmaker->Version()) ;
- tsmaker = gime->TrackSegmentMaker(tsmakerName) ;
-
- tsbranch->GetEntry(0) ;
- tsmakerbranch->GetEntry(0) ;
-
- fRecPointsTitle = tsmaker->GetRecPointsBranch() ;
-
- // Find RecPoints
- TBranch * emcbranch = 0;
- TBranch * cpvbranch = 0;
- TBranch * clusterizerbranch = 0;
- lob = (TObjArray*)gAlice->TreeR()->GetListOfBranches() ;
- TIter next2(lob) ;
- branch = 0 ;
- Bool_t phosemcfound = kFALSE, phoscpvfound = kFALSE, clusterizerfound = kFALSE ;
-
- while ( (branch = (TBranch*)next2()) && (!phosemcfound || !phoscpvfound || !clusterizerfound) ) {
- if ( (strcmp(branch->GetName(), "PHOSEmcRP")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) ) {
- phosemcfound = kTRUE ;
- emcbranch = branch ;
- }
-
- else if ( (strcmp(branch->GetName(), "PHOSCpvRP")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) ) {
- phoscpvfound = kTRUE ;
- cpvbranch = branch ;
-
- } else if ( (strcmp(branch->GetName(), "AliPHOSClusterizer")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) ) {
- clusterizerfound = kTRUE ;
- clusterizerbranch = branch ;
+ // gime->SetRecParticlesTitle(BranchName()) ;
+ if ( gime == 0 ) {
+ Error("Init", "Could not obtain the Getter object !" ) ;
+ return ;
+ }
+
+ fSplitFile = 0 ;
+ if(fToSplit){
+ //First - extract full path if necessary
+ TString fileName(GetTitle()) ;
+ Ssiz_t islash = fileName.Last('/') ;
+ if(islash<fileName.Length())
+ fileName.Remove(islash+1,fileName.Length()) ;
+ else
+ fileName="" ;
+ fileName+="PHOS.RecData." ;
+ if((strcmp(branchname.Data(),"Default")!=0)&&(strcmp(branchname.Data(),"")!=0)){
+ fileName+=branchname.Data() ;
+ fileName+="." ;
}
+ fileName+="root" ;
+ fSplitFile = static_cast<TFile*>(gROOT->GetFile(fileName.Data()));
+ if(!fSplitFile)
+ fSplitFile = TFile::Open(fileName.Data(),"update") ;
}
- if ( !phosemcfound || !phoscpvfound || !clusterizerfound ) {
- cerr << "WARNING: AliPHOSTrackPIDv1::ReadTrackSegments -> emc(cpv)RecPoints and/or Clusterizer branch with name " << taskName.Data()
- << " not found" << endl ;
- return kFALSE ;
- }
-
- TObjArray * emcRecPoints = gime->EmcRecPoints() ;
- emcRecPoints->Clear() ;
- emcbranch->SetAddress(&emcRecPoints) ;
-
- TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
- cpvRecPoints->Clear() ;
- cpvbranch->SetAddress(&cpvRecPoints) ;
+ gime->PostPID(this) ;
+ // create a folder on the white board //YSAlice/WhiteBoard/RecParticles/PHOS/recparticlesName
+ gime->PostRecParticles(branchname) ;
- AliPHOSClusterizer * clusterizer = 0 ;
- clusterizerbranch->SetAddress(&clusterizer) ;
- clusterizerbranch->GetEntry(0) ;
- TString clusterizerName( fTrackSegmentsTitle ) ;
- clusterizerName.Append(clusterizer->Version()) ;
- clusterizer = gime->Clusterizer(clusterizerName) ;
+}
- emcbranch->GetEntry(0) ;
- cpvbranch->GetEntry(0) ;
- clusterizerbranch->GetEntry(0) ;
-
- return kTRUE ;
-
+//____________________________________________________________________________
+void AliPHOSPIDv1::InitParameters()
+{
+// fFrom = "" ;
+// fHeaderFileName = GetTitle() ;
+// TString name(GetName()) ;
+// if (name.IsNull())
+// name = "Default" ;
+// fTrackSegmentsTitle = name ;
+// fRecPointsTitle = name ;
+// fRecParticlesTitle = name ;
+// name.Append(":") ;
+// name.Append(Version()) ;
+// SetName(name) ;
+ fRecParticlesInRun = 0 ;
+ fNEvent = 0 ;
+ // fClusterizer = 0 ;
+ // fTSMaker = 0 ;
+ fRecParticlesInRun = 0 ;
+ TString pidName( GetName()) ;
+ if (pidName.IsNull() )
+ pidName = "Default" ;
+ pidName.Append(":") ;
+ pidName.Append(Version()) ;
+ SetName(pidName) ;
+ fPi0Analysis = kFALSE ;
+ SetParameters() ; // fill the parameters matrix from parameters file
}
//____________________________________________________________________________
-Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const
+const Float_t AliPHOSPIDv1::GetCpvtoEmcDistanceCut(const Float_t e, const TString Axis) const
{
- // Calculates the distance between the EMC RecPoint and the PPSD RecPoint
+ // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
+ // Purity-Efficiency point
+
+ Int_t i = -1;
+ if (Axis.Contains("X")) i = 1;
+ else if (Axis.Contains("Z")) i = 2;
+ else
+ Error("GetCpvtoEmcDistanceCut"," Invalid axis option ");
+
+ Float_t a = (*fParameters)(i,0) ;
+ Float_t b = (*fParameters)(i,1) ;
+ Float_t c = (*fParameters)(i,2) ;
+
+ Float_t sig = a + TMath::Exp(b-c*e);
+ return sig;
+}
+//____________________________________________________________________________
+
+const Double_t AliPHOSPIDv1::GetTimeGate(const Int_t effpur) const
+{
+ // Get TimeGate parameter depending on Purity-Efficiency point
+ if(effpur>2 || effpur<0)
+ Error("GetTimeGate","Invalid Efficiency-Purity choice %d",effpur);
+ return (*fParameters)(3,effpur) ;
+
+}
+//_____________________________________________________________________________
+const Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const
+{
+ // Calculates the distance between the EMC RecPoint and the PPSD RecPoint
+
const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ;
TVector3 vecEmc ;
TVector3 vecCpv ;
-
- emc->GetLocalPosition(vecEmc) ;
- cpv->GetLocalPosition(vecCpv) ;
- if(emc->GetPHOSMod() == cpv->GetPHOSMod()){
-
- // Correct to difference in CPV and EMC position due to different distance to center.
- // we assume, that particle moves from center
- Float_t dCPV = geom->GetIPtoOuterCoverDistance();
- Float_t dEMC = geom->GetIPtoCrystalSurface() ;
- dEMC = dEMC / dCPV ;
- vecCpv = dEMC * vecCpv - vecEmc ;
- if (Axis == "X") return vecCpv.X();
- if (Axis == "Y") return vecCpv.Y();
- if (Axis == "Z") return vecCpv.Z();
- if (Axis == "R") return vecCpv.Mag();
+ if(cpv){
+ emc->GetLocalPosition(vecEmc) ;
+ cpv->GetLocalPosition(vecCpv) ;
+ if(emc->GetPHOSMod() == cpv->GetPHOSMod()){
+ // Correct to difference in CPV and EMC position due to different distance to center.
+ // we assume, that particle moves from center
+ Float_t dCPV = geom->GetIPtoOuterCoverDistance();
+ Float_t dEMC = geom->GetIPtoCrystalSurface() ;
+ dEMC = dEMC / dCPV ;
+ vecCpv = dEMC * vecCpv - vecEmc ;
+ if (Axis == "X") return vecCpv.X();
+ if (Axis == "Y") return vecCpv.Y();
+ if (Axis == "Z") return vecCpv.Z();
+ if (Axis == "R") return vecCpv.Mag();
}
-
+
+ return 100000000 ;
+ }
return 100000000 ;
}
+//____________________________________________________________________________
+const Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv,const Int_t EffPur, const Float_t e) const
+{
+ // return 1 if a combination of EMC and CPV is neutral rec.points matches a neutral particle
+ // return 0 otherwise
+ if(EffPur>2 || EffPur<0)
+ Error("GetCPVBit","Invalid Efficiency-Purity choice %d",EffPur);
+
+ Float_t sigX = GetCpvtoEmcDistanceCut(e,"X");
+ Float_t sigZ = GetCpvtoEmcDistanceCut(e,"Z");
+
+ Float_t deltaX = TMath::Abs(GetDistance(emc, cpv, "X"));
+ Float_t deltaZ = TMath::Abs(GetDistance(emc, cpv, "Z"));
+
+ if((deltaX>sigX*(EffPur+1)) || (deltaZ>sigZ*(EffPur+1)))
+ return 1;//Neutral
+ else
+ return 0;//Charged
+
+}
//____________________________________________________________________________
-void AliPHOSPIDv1::Exec(Option_t * option)
+const Double_t AliPHOSPIDv1::GetCalibratedEnergy(const Float_t e) const
{
- //Steering method
+// It calibrates Energy depending on the recpoint energy.
+// The energy of the reconstructed cluster is corrected with
+// the formula A + B* E + C* E^2, whose parameters where obtained
+// through the study of the reconstructed energy distribution of
+// monoenergetic photons.
+
+ Double_t p[]={0.,0.,0.};
+ Int_t i;
+ for(i=0;i<3;i++) p[i]= (*fParameters)(0,i);
+ Double_t enerec = p[0] + p[1]* e+ p[2] * e * e;
+ return enerec ;
- if( strcmp(GetName(), "")== 0 )
- Init() ;
+}
+//____________________________________________________________________________
+const Int_t AliPHOSPIDv1::GetPrincipalBit(const Double_t* p ,const Int_t effpur, const Float_t e)const
+{
+ //Is the particle inside de PCA ellipse?
+
+ Int_t prinbit = 0 ;
+ Double_t a = GetEllipseParameter("a", e);
+ Double_t b = GetEllipseParameter("b", e);
+ Double_t c = GetEllipseParameter("c", e);
+ Double_t xCenter = GetEllipseParameter("x0", e);
+ Double_t yCenter = GetEllipseParameter("y0", e);
+
+ Double_t r = TMath::Power((p[0] - xCenter)/a,2) +
+ TMath::Power((p[1] - yCenter)/b,2) +
+ c*(p[0] - xCenter)*(p[1] - yCenter)/(a*b) ;
+ //3 different ellipses defined
+ if((effpur==2)&&(r <1./2.)) prinbit= 1;
+ if((effpur==1)&&(r <2. )) prinbit= 1;
+ if((effpur==0)&&(r <9./2.)) prinbit= 1;
- if(strstr(option,"tim"))
- gBenchmark->Start("PHOSPID");
-
- if(strstr(option,"print")) {
- Print("") ;
- return ;
- }
+ if(r<0)
+ Error("GetPrincipalBit", "Negative square? R=%f \n",r) ;
+
+ return prinbit;
- //check, if the branch with name of this" already exits?
- TObjArray * lob = (TObjArray*)gAlice->TreeR()->GetListOfBranches() ;
- TIter next(lob) ;
- TBranch * branch = 0 ;
- Bool_t phospidfound = kFALSE, pidfound = kFALSE ;
+}
+//____________________________________________________________________________
+const Int_t AliPHOSPIDv1::GetPrincipalPi0Bit(const Double_t* p, const Int_t effpur, const Float_t e)const
+{
+ //Is the particle inside de Pi0 PCA ellipse?
+
+ Int_t prinbit = 0 ;
+ Double_t a = GetEllipseParameterPi0("a", e);
+ Double_t b = GetEllipseParameterPi0("b", e);
+ Double_t c = GetEllipseParameterPi0("c", e);
+ Double_t xCenter = GetEllipseParameterPi0("x0", e);
+ Double_t yCenter = GetEllipseParameterPi0("y0", e);
- TString taskName(GetName()) ;
- taskName.ReplaceAll(Version(), "") ;
+ Double_t r = TMath::Power((p[0] - xCenter)/a,2) +
+ TMath::Power((p[1] - yCenter)/b,2) +
+ c*(p[0] - xCenter)*(p[1] - yCenter)/(a*b) ;
+ //3 different ellipses defined
+ if((effpur==2)&&(r <1./2.)) prinbit= 1;
+ if((effpur==1)&&(r <2. )) prinbit= 1;
+ if((effpur==0)&&(r <9./2.)) prinbit= 1;
- while ( (branch = (TBranch*)next()) && (!phospidfound || !pidfound) ) {
- if ( (strcmp(branch->GetName(), "PHOSPID")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) )
- phospidfound = kTRUE ;
-
- else if ( (strcmp(branch->GetName(), "AliPHOSPID")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) )
- pidfound = kTRUE ;
- }
+ if(r<0)
+ Error("GetPrincipalPi0Bit", "Negative square?") ;
- if ( phospidfound || pidfound ) {
- cerr << "WARNING: AliPHOSPIDv1::Exec -> RecParticles and/or PIDtMaker branch with name "
- << taskName.Data() << " already exits" << endl ;
- return ;
- }
-
- Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
- Int_t ievent ;
+ return prinbit;
- for(ievent = 0; ievent < nevents; ievent++){
- if(!ReadTrackSegments(ievent)) //reads TrackSegments for event ievent
- return ;
+}
+//_____________________________________________________________________________
+void AliPHOSPIDv1::SetCpvtoEmcDistanceCutParameters(Float_t e, Int_t effpur, TString Axis,Float_t cut)
+{
+ // Set the parameters to calculate Cpvto EmcDistanceCut depending on the cluster energy and
+ // Purity-Efficiency point
+
+ if(effpur>2 || effpur<0)
+ Error("SetCpvtoEmcDistanceCutParameters","Invalid Efficiency-Purity choice %d",effpur);
- MakeRecParticles() ;
- cout << "MAKE" << endl ;
- WriteRecParticles(ievent);
+ Int_t i = -1;
+ if (Axis.Contains("X")) i = 1;
+ else if(Axis.Contains("Z")) i = 2;
+ else
+ Error("SetCpvtoEmcDistanceCutParameters"," Invalid axis option");
+
+ (*fParameters)(i,effpur) = cut ;
+}
+//_____________________________________________________________________________
+void AliPHOSPIDv1::SetTimeGate(Int_t effpur, Float_t gate)
+{
+ // Set the parameter TimeGate depending on the cluster energy and
+ // Purity-Efficiency point
+ if(effpur>2 || effpur<0)
+ Error("SetTimeGate","Invalid Efficiency-Purity choice %d",effpur);
+
+ (*fParameters)(3,effpur)= gate ;
+}
+//_____________________________________________________________________________
+void AliPHOSPIDv1::SetParameters()
+{
+ // PCA : To do the Principal Components Analysis it is necessary
+ // the Principal file, which is opened here
+ fX = new double[7]; // Data for the PCA
+ fP = new double[7]; // Eigenvalues of the PCA
+ fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA
- if(strstr(option,"deb"))
- PrintRecParticles(option) ;
+ // Read photon principals from the photon file
+
+ fFileName = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ;
+ TFile f( fFileName.Data(), "read" ) ;
+ fPrincipal = dynamic_cast<TPrincipal*> (f.Get("principal")) ;
+ f.Close() ;
+
+ // Read pi0 principals from the pi0 file
+
+ fFileNamePi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ;
+ TFile fPi0( fFileNamePi0.Data(), "read" ) ;
+ fPrincipalPi0 = dynamic_cast<TPrincipal*> (fPi0.Get("principal")) ;
+ fPi0.Close() ;
+
+ // Open parameters file and initialization of the Parameters matrix.
+ // In the File Parameters.dat are all the parameters. These are introduced
+ // in a matrix of 9x4
+ //
+ // All the parameters defined in this file are, in order of row:
+ // -CpvtoEmcDistanceCut (2 row (x and z) and 3 columns, each one depending
+ // on the parameter of the funtion that sets the cut in x or z.
+ // -TimeGate, 1 row and 3 columns (3 efficiency-purty cuts)
+ // -PCA, parameters of the functions that
+ // calculate the ellipse parameters, x0,y0,a, b, c. These 5 parameters
+ // (5 rows) depend on 4 parameters (columns).
+ // -Finally there is a row with the energy calibration parameters,
+ // 3 parameters.
+
+ fFileNamePar = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat");
+ fParameters = new TMatrixD(14,4) ;
+ const Int_t kmaxLeng=255;
+ char string[kmaxLeng];
+
+ // Open a text file with PID parameters
+ FILE *fd = fopen(fFileNamePar.Data(),"r");
+ if (!fd)
+ Fatal("SetParameter","File %s with a PID parameters cannot be opened\n",
+ fFileNamePar.Data());
+
+ Int_t i=0;
+ // Read parameter file line-by-line and skip empty line and comments
+ while (fgets(string,kmaxLeng,fd) != NULL) {
+ if (string[0] == '\n' ) continue;
+ if (string[0] == '!' ) continue;
+ sscanf(string, "%lf %lf %lf %lf",
+ &(*fParameters)(i,0), &(*fParameters)(i,1),
+ &(*fParameters)(i,2), &(*fParameters)(i,3));
+ i++;
}
+ fclose(fd);
+}
- if(strstr(option,"tim")){
- gBenchmark->Stop("PHOSPID");
- cout << "AliPHOSPID:" << endl ;
- cout << " took " << gBenchmark->GetCpuTime("PHOSPID") << " seconds for PID "
- << gBenchmark->GetCpuTime("PHOSPID")/nevents << " seconds per event " << endl ;
- cout << endl ;
+
+//________________________________________________________________________
+void AliPHOSPIDv1::SetEllipseParameter(TString Param, Int_t i, Double_t par)
+{
+ // Set the parameter "i" that is needed to calculate the ellipse
+ // parameter "Param".
+
+ Int_t p= -1;
+ if (Param.Contains("a")) p=4;
+ else if(Param.Contains("b")) p=5;
+ else if(Param.Contains("c")) p=6;
+ else if(Param.Contains("x0"))p=7;
+ else if(Param.Contains("y0"))p=8;
+ if((i>4)||(i<0))
+ Error("SetEllipseParameter", "No parameter with index %d", i) ;
+ else if(p==-1)
+ Error("SetEllipseParameter", "No parameter with name %s", Param.Data() ) ;
+ else
+ (*fParameters)(p,i) = par ;
+}
+//________________________________________________________________________
+void AliPHOSPIDv1::SetEllipseParameterPi0(TString Param, Int_t i, Double_t par)
+{
+ // Set the parameter "i" that is needed to calculate the ellipse
+ // parameter "Param".
+ if(!fPi0Analysis) Error("SetPi0EllipseParameter", "Pi 0 Analysis is off") ;
+ Int_t p= -1;
+ if (Param.Contains("a")) p=9;
+ else if(Param.Contains("b")) p=10;
+ else if(Param.Contains("c")) p=11;
+ else if(Param.Contains("x0"))p=12;
+ else if(Param.Contains("y0"))p=13;
+ if((i>4)||(i<0))
+ Error("SetPi0EllipseParameter", "No parameter with index %d", i) ;
+ else if(p==-1)
+ Error("SetPi0EllipseParameter", "No parameter with name %s", Param.Data() ) ;
+ else
+ (*fParameters)(p,i) = par ;
+}
+//________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetParameterToCalculateEllipse(const TString Param, const Int_t i) const
+{
+ // Get the parameter "i" that is needed to calculate the ellipse
+ // parameter "Param".
+
+ Int_t p= -1;
+ Double_t par = -1;
+
+ if (Param.Contains("a")) p=4;
+ else if(Param.Contains("b")) p=5;
+ else if(Param.Contains("c")) p=6;
+ else if(Param.Contains("x0"))p=7;
+ else if(Param.Contains("y0"))p=8;
+
+ if((i>4)||(i<0))
+ Error("GetParameterToCalculateEllipse", "No parameter with index", i) ;
+ else if(p==-1)
+ Error("GetParameterToCalculateEllipse", "No parameter with name %s", Param.Data() ) ;
+ else
+ par = (*fParameters)(p,i) ;
+
+ return par;
+
+}
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetParameterToCalculatePi0Ellipse(const TString Param, const Int_t i) const
+{
+ // Get the parameter "i" that is needed to calculate the ellipse
+ // parameter "Param".
+
+ if(!fPi0Analysis) Error("GetParameterToCalculatePi0Ellipse", "Pi 0 Analysis is off") ;
+
+ Int_t p= -1;
+ Double_t par = -1;
+
+ if(Param.Contains("a")) p=9;
+ if(Param.Contains("b")) p=10;
+ if(Param.Contains("c")) p=11;
+ if(Param.Contains("x0"))p=12;
+ if(Param.Contains("y0"))p=13;
+
+ if((i>4)||(i<0))
+ Error("GetParameterToCalculatePi0Ellipse", "No parameter with index", i) ;
+ else if(p==-1)
+ Error("GetParameterToCalculatePi0Ellipse", "No parameter with name %s", Param.Data() ) ;
+ else
+ par = (*fParameters)(p,i) ;
+
+ return par;
+
+}
+//____________________________________________________________________________
+void AliPHOSPIDv1::SetCalibrationParameter(Int_t i,Double_t param) const
+{
+ (*fParameters)(0,i) = param ;
+}
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetCalibrationParameter(const Int_t i) const
+{
+ Float_t param = (*fParameters)(0,i);
+ return param;
+}
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetEllipseParameter(const TString Param,Float_t E) const
+{
+ // Calculates the parameter Param of the ellipse
+
+ Double_t p[4]={0.,0.,0.,0.};
+ Double_t value = 0.0;
+ Int_t i;
+
+ if(Param.Contains("a")){
+ for(i=0;i<4;i++)p[i]=(*fParameters)(4,i);
+ if(E>70.)E=70.;
+ }
+
+ else if(Param.Contains("b")){
+ for(i=0;i<4;i++)p[i]=(*fParameters)(5,i);
+ if(E>70.)E=70.;
}
+
+ else if(Param.Contains("c"))
+ for(i=0;i<4;i++)p[i]=(*fParameters)(6,i);
+
+ else if(Param.Contains("x0")){
+ for(i=0;i<4;i++)p[i]=(*fParameters)(7,i);
+ if(E<1.)E=1.1;
+ }
+ else if(Param.Contains("y0"))
+ for(i=0;i<4;i++)p[i]=(*fParameters)(8,i);
+
+ value = p[0]/TMath::Sqrt(E)+p[1]*E+p[2]*E*E+p[3];
+ return value;
+}
+//____________________________________________________________________________
+// const Double_t AliPHOSPIDv1::GetEllipseParameter(const TString Param,Float_t E) const
+// {
+// // Calculates the parameter Param of the pi0 ellipse
+
+// Double_t p[3] = {0.,0.,0.};
+// Double_t value = 0.0;
+// Int_t i;
+
+// if(Param.Contains("a"))
+// for(i=0;i<3;i++)p[i]=(*fParameters)(4,i);
+// else if(Param.Contains("b"))
+// for(i=0;i<3;i++)p[i]=(*fParameters)(5,i);
+// else if(Param.Contains("c"))
+// for(i=0;i<3;i++)p[i]=(*fParameters)(6,i);
+// else if(Param.Contains("x0"))
+// for(i=0;i<3;i++)p[i]=(*fParameters)(7,i);
+// else if(Param.Contains("y0"))
+// for(i=0;i<3;i++)p[i]=(*fParameters)(8,i);
+
+// value = p[0] + p[1]*E + p[2]*E*E;
+// return value;
+// }
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetEllipseParameterPi0(const TString Param,Float_t E) const
+{
+ // Calculates the parameter Param of the pi0 ellipse
+
+ Double_t p[3] = {0.,0.,0.};
+ Double_t value = 0.0;
+ Int_t i;
+
+ if(Param.Contains("a"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(9,i);
+ else if(Param.Contains("b"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(10,i);
+ else if(Param.Contains("c"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(11,i);
+ else if(Param.Contains("x0"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(12,i);
+ else if(Param.Contains("y0"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(13,i);
+
+ value = p[0] + p[1]*E + p[2]*E*E;
+ return value;
}
//____________________________________________________________________________
-void AliPHOSPIDv1::Init()
+
+void AliPHOSPIDv1::Exec(Option_t * option)
{
- // Make all memory allocations that are not possible in default constructor
- // Add the PID task to the list of PHOS tasks
+ //Steering method
- if ( strcmp(GetTitle(), "") == 0 )
- SetTitle("galice.root") ;
+ if( strcmp(GetName(), "")== 0 )
+ Init() ;
+
+ if(strstr(option,"tim"))
+ gBenchmark->Start("PHOSPID");
- TString taskName(GetName()) ;
- taskName.ReplaceAll(Version(), "") ;
+ if(strstr(option,"print")) {
+ Print("") ;
+ return ;
+ }
- AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), taskName.Data()) ;
- if ( gime == 0 ) {
- cerr << "ERROR: AliPHOSPIDv1::Init -> Could not obtain the Getter object !" << endl ;
+
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+ if(gime->BranchExists("RecParticles") )
return ;
- }
-
- //add Task to //YSAlice/tasks/Reconstructioner/PHOS
- TTask * aliceRe = (TTask*)gROOT->FindObjectAny("YSAlice/tasks/Reconstructioner") ;
- TTask * phosRe = (TTask*)aliceRe->GetListOfTasks()->FindObject("PHOS") ;
- phosRe->Add(this) ;
- // create a folder on the white board //YSAlice/WhiteBoard/RecParticles/PHOS/recparticlesName
- gime->Post(GetTitle(), "P", taskName.Data() ) ;
+ Int_t nevents = gime->MaxEvent() ;
+ Int_t ievent ;
+
+ for(ievent = 0; ievent < nevents; ievent++){
+ gime->Event(ievent,"R") ;
+
+ if(gime->TrackSegments() && //Skip events, where no track segments made
+ gime->TrackSegments()->GetEntriesFast()) {
+ MakeRecParticles() ;
+ WriteRecParticles(ievent);
+ if(strstr(option,"deb"))
+ PrintRecParticles(option) ;
+ //increment the total number of rec particles per run
+ fRecParticlesInRun+=gime->RecParticles(BranchName())->GetEntriesFast() ;
+ }
+ }
+ if(strstr(option,"tim")){
+ gBenchmark->Stop("PHOSPID");
+ Info("Exec", "took %f seconds for PID %f seconds per event",
+ gBenchmark->GetCpuTime("PHOSPID"),
+ gBenchmark->GetCpuTime("PHOSPID")/nevents) ;
+ }
}
//____________________________________________________________________________
void AliPHOSPIDv1::MakeRecParticles(){
// Makes a RecParticle out of a TrackSegment
-
+
AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
TObjArray * emcRecPoints = gime->EmcRecPoints() ;
TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
TClonesArray * trackSegments = gime->TrackSegments() ;
+ if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) {
+ Fatal("MakeRecParticles", "RecPoints or TrackSegments not found !") ;
+ }
TClonesArray * recParticles = gime->RecParticles() ;
+ recParticles->Clear();
TIter next(trackSegments) ;
AliPHOSTrackSegment * ts ;
Int_t index = 0 ;
AliPHOSRecParticle * rp ;
-
- Bool_t ellips = fIDOptions.Contains("ell",TString::kIgnoreCase ) ;
- Bool_t disp = fIDOptions.Contains("dis",TString::kIgnoreCase ) ;
-
while ( (ts = (AliPHOSTrackSegment *)next()) ) {
new( (*recParticles)[index] ) AliPHOSRecParticle() ;
rp = (AliPHOSRecParticle *)recParticles->At(index) ;
- rp->SetTraskSegment(index) ;
-
+ rp->SetTrackSegment(index) ;
+ rp->SetIndexInList(index) ;
+
AliPHOSEmcRecPoint * emc = 0 ;
if(ts->GetEmcIndex()>=0)
emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ;
if(ts->GetCpvIndex()>=0)
cpv = (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ;
- AliPHOSRecPoint * ppsd = 0 ;
- if(ts->GetPpsdIndex()>=0)
- ppsd= (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetPpsdIndex()) ;
-
- //set momentum and energy first
- Float_t e = emc->GetEnergy() ;
- TVector3 dir = GetMomentumDirection(emc,cpv,ppsd) ;
- dir.SetMag(e) ;
-
- rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),e) ;
- rp->SetCalcMass(0);
+ // Now set type (reconstructed) of the particle
- //now set type (reconstructed) of the particle
- Int_t showerprofile = 0; // 0 narrow and 1 wide
+ // Choose the cluster energy range
- if(ellips){
- Float_t lambda[2] ;
- emc->GetElipsAxis(lambda) ;
- if(fFormula->Eval(lambda[0],lambda[1]) <= 0 )
- showerprofile = 1 ; // not narrow
+ if (!emc) {
+ Fatal("MakeRecParticles", "-> emc(%d) = %d", ts->GetEmcIndex(), emc ) ;
}
+
+ Float_t e = emc->GetEnergy() ;
- if(disp)
- if(emc->GetDispersion() > fDispersion )
- showerprofile = 1 ; // not narrow
+ Float_t lambda[2] ;
+ emc->GetElipsAxis(lambda) ;
+ if((lambda[0]>0.01) && (lambda[1]>0.01)){
+ // Looking PCA. Define and calculate the data (X),
+ // introduce in the function X2P that gives the components (P).
+
+ Float_t spher = 0. ;
+ Float_t emaxdTotal = 0. ;
+
+ if((lambda[0]+lambda[1])!=0)
+ spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]);
+
+ emaxdTotal=emc->GetMaximalEnergy()/emc->GetEnergy();
+
+ fX[0] = lambda[0] ;
+ fX[1] = lambda[1] ;
+ fX[2] = emc->GetDispersion() ;
+ fX[3] = spher ;
+ fX[4] = emc->GetMultiplicity() ;
+ fX[5] = emaxdTotal ;
+ fX[6] = emc->GetCoreEnergy() ;
+
+ fPrincipal->X2P(fX,fP);
+ if(fPi0Analysis)
+ fPrincipalPi0->X2P(fX,fPPi0);
+
+ }
+ else{
+ fP[0]=-100.0; //We do not accept clusters with
+ fP[1]=-100.0; //one cell as a photon-like
+ if(fPi0Analysis){
+ fPPi0[0]=-100.0;
+ fPPi0[1]=-100.0;
+ }
+ }
- // Looking at the photon conversion detector
- Int_t pcdetector= 0 ; //1 hit and 0 no hit
- if(ppsd)
- if(GetDistance(emc, ppsd, "R") < fCpvEmcDistance)
- pcdetector = 1 ;
+ Float_t time =emc->GetTime() ;
+
+ // Loop of Efficiency-Purity (the 3 points of purity or efficiency
+ // are taken into account to set the particle identification)
+ for(Int_t eff_pur = 0; eff_pur < 3 ; eff_pur++){
+
+ // Looking at the CPV detector. If RCPV greater than CpvEmcDistance,
+ // 1st,2nd or 3rd bit (depending on the efficiency-purity point )
+ // is set to 1
+ if(GetCPVBit(emc, cpv, eff_pur,e) == 1 )
+ rp->SetPIDBit(eff_pur) ;
+
+ // Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th
+ // bit (depending on the efficiency-purity point )is set to 1
+ if(time< (*fParameters)(2,eff_pur))
+ rp->SetPIDBit(eff_pur+3) ;
+
+ //If we are inside the ellipse, 7th, 8th or 9th
+ // bit (depending on the efficiency-purity point )is set to 1
+ if(GetPrincipalBit(fP,eff_pur,e) == 1)
+ rp->SetPIDBit(eff_pur+6) ;
+
+ //Pi0 analysis
+ //If we are inside the ellipse, 10th, 11th or 12th
+ // bit (depending on the efficiency-purity point )is set to 1
+ if(fPi0Analysis){
+ if(GetPrincipalPi0Bit(fPPi0,eff_pur,e) == 1)
+ rp->SetPIDBit(eff_pur+9) ;
+ }
+ }
- // Looking at the CPV detector
- Int_t cpvdetector= 0 ; //1 hit and 0 no hit
- if(cpv)
- if(GetDistance(emc, cpv, "R") < fCpvEmcDistance)
- cpvdetector = 1 ;
- Int_t type = showerprofile + 2 * pcdetector + 4 * cpvdetector ;
- rp->SetType(type) ;
+ //Set momentum, energy and other parameters
+ Float_t encal = GetCalibratedEnergy(e);
+ TVector3 dir = GetMomentumDirection(emc,cpv) ;
+ dir.SetMag(encal) ;
+ rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),encal) ;
+ rp->SetCalcMass(0);
+ rp->Name(); //If photon sets the particle pdg name to gamma
+ rp->SetProductionVertex(0,0,0,0);
+ rp->SetFirstMother(-1);
+ rp->SetLastMother(-1);
+ rp->SetFirstDaughter(-1);
+ rp->SetLastDaughter(-1);
+ rp->SetPolarisation(0,0,0);
index++ ;
}
}
//____________________________________________________________________________
-void AliPHOSPIDv1:: Print(Option_t * option) const
+void AliPHOSPIDv1::Print()
{
// Print the parameters used for the particle type identification
- cout << "=============== AliPHOSPID1 ================" << endl ;
- cout << "Making PID "<< endl ;
- cout << " Headers file: " << fHeaderFileName.Data() << endl ;
- cout << " RecPoints branch title: " << fRecPointsTitle.Data() << endl ;
- cout << " TrackSegments Branch title: " << fTrackSegmentsTitle.Data() << endl ;
- cout << " RecParticles Branch title " << fRecParticlesTitle.Data() << endl;
- cout << "with parameters: " << endl ;
- cout << " Maximal EMC - CPV (PPSD) distance (cm) " << fCpvEmcDistance << endl ;
- if(fIDOptions.Contains("dis",TString::kIgnoreCase ))
- cout << " dispersion cut " << fDispersion << endl ;
- if(fIDOptions.Contains("ell",TString::kIgnoreCase )){
- cout << "Eliptic cuts function: " << endl ;
- cout << fFormula->GetTitle() << endl ;
- }
- cout << "============================================" << endl ;
-}
-//____________________________________________________________________________
-void AliPHOSPIDv1::SetShowerProfileCut(char * formula)
-{
- //set shape of the cut on the axis of ellipce, drown around shouer
- //shower considered "narrow" if Formula(lambda[0],lambda[1]) > 0.
- if(fFormula)
- delete fFormula;
- fFormula = new TFormula("Lambda Cut",formula) ;
+ TString message ;
+ message = "\n=============== AliPHOSPID1 ================\n" ;
+ message += "Making PID\n";
+ message += " Pricipal analysis file from 0.5 to 100 %s\n" ;
+ message += " Name of parameters file %s\n" ;
+ message += " Matrix of Parameters: 14x4\n" ;
+ message += " Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]\n" ;
+ message += " RCPV 2x3 rows x and z, columns function cut parameters\n" ;
+ message += " TOF 1x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]\n" ;
+ message += " PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]\n" ;
+ message += " Pi0 PCA 5x3 [5 ellipse parametres and 3 parametres to calculate them: A + B* E + C * E^2]\n" ;
+ Info("Print", message.Data(), fFileName.Data(), fFileNamePar.Data() ) ;
+ fParameters->Print() ;
}
+
//____________________________________________________________________________
void AliPHOSPIDv1::WriteRecParticles(Int_t event)
{
-
+ // writes the reconstructed particles to file
AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ;
- TClonesArray * recParticles = gime->RecParticles() ;
- gAlice->GetEvent(event) ;
+ TClonesArray * recParticles = gime->RecParticles() ;
+ recParticles->Expand(recParticles->GetEntriesFast() ) ;
+ TTree * treeR ;
- //Make branch in TreeR for RecParticles
- char * filename = 0;
- if(gSystem->Getenv("CONFIG_SPLIT_FILE")!=0){ //generating file name
- filename = new char[strlen(gAlice->GetBaseFile())+20] ;
- sprintf(filename,"%s/PHOS.Reco.root",gAlice->GetBaseFile()) ;
+ if(fToSplit){
+ if(!fSplitFile)
+ return ;
+ fSplitFile->cd() ;
+ char name[10] ;
+ sprintf(name,"%s%d", "TreeR",event) ;
+ treeR = dynamic_cast<TTree*>(fSplitFile->Get(name));
+ }
+ else{
+ treeR = gAlice->TreeR();
+ }
+
+ if(!treeR){
+ gAlice->MakeTree("R", fSplitFile);
+ treeR = gAlice->TreeR() ;
}
-
- TDirectory *cwd = gDirectory;
//First rp
Int_t bufferSize = 32000 ;
- TBranch * rpBranch = gAlice->TreeR()->Branch("PHOSRP",&recParticles,bufferSize);
- rpBranch->SetTitle(fRecParticlesTitle.Data());
- if (filename) {
- rpBranch->SetFile(filename);
- TIter next( rpBranch->GetListOfBranches());
- TBranch * sb ;
- while ((sb=(TBranch*)next())) {
- sb->SetFile(filename);
- }
- cwd->cd();
- }
+ TBranch * rpBranch = treeR->Branch("PHOSRP",&recParticles,bufferSize);
+ rpBranch->SetTitle(BranchName());
+
//second, pid
Int_t splitlevel = 0 ;
AliPHOSPIDv1 * pid = this ;
- TBranch * pidBranch = gAlice->TreeR()->Branch("AliPHOSPID","AliPHOSPIDv1",&pid,bufferSize,splitlevel);
- pidBranch->SetTitle(fRecParticlesTitle.Data());
- if (filename) {
- pidBranch->SetFile(filename);
- TIter next( pidBranch->GetListOfBranches());
- TBranch * sb ;
- while ((sb=(TBranch*)next())) {
- sb->SetFile(filename);
- }
- cwd->cd();
- }
+ TBranch * pidBranch = treeR->Branch("AliPHOSPID","AliPHOSPIDv1",&pid,bufferSize,splitlevel);
+ pidBranch->SetTitle(BranchName());
rpBranch->Fill() ;
- pidBranch->Fill() ;
-
- gAlice->TreeR()->Write(0,kOverwrite) ;
+ pidBranch->Fill() ;
-}
-
-//____________________________________________________________________________
-void AliPHOSPIDv1::PlotDispersionCuts()const
-{
- // produces a plot of the dispersion cut
- TCanvas* lambdas = new TCanvas("lambdas","Cuts on the ellipse axis",200,10,700,500);
-
- if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ){
- TF2 * ell = new TF2("Elliptic Cuts",fFormula->GetName(),0,3,0,3) ;
- ell->SetMinimum(0.0000001) ;
- ell->SetMaximum(0.001) ;
- ell->SetLineStyle(1) ;
- ell->SetLineWidth(2) ;
- ell->Draw() ;
+ treeR->AutoSave() ; //Write(0,kOverwrite) ;
+ if(gAlice->TreeR()!=treeR){
+ treeR->Delete();
}
-
- if( fIDOptions.Contains("dis",TString::kIgnoreCase ) ){
- TF2 * dsp = new TF2("dispersion","(y<x)*(x*x+y*y < [0]*[0])",0,3,0,3) ;
- dsp->SetParameter(0,fDispersion) ;
- dsp->SetMinimum(0.0000001) ;
- dsp->SetMaximum(0.001) ;
- dsp->SetLineStyle(1) ;
- dsp->SetLineColor(2) ;
- dsp->SetLineWidth(2) ;
- dsp->SetNpx(200) ;
- dsp->SetNpy(200) ;
- if(fIDOptions.Contains("ell",TString::kIgnoreCase ) )
- dsp->Draw("same") ;
- else
- dsp->Draw() ;
- }
- lambdas->Update();
}
//____________________________________________________________________________
-TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv,AliPHOSRecPoint * ppsd)const
+TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv)const
{
// Calculates the momentum direction:
// 1. if only a EMC RecPoint, direction is given by IP and this RecPoint
- // 2. if a EMC RecPoint and one PPSD RecPoint, direction is given by the line through the 2 recpoints
- // 3. if a EMC RecPoint and two PPSD RecPoints, dirrection is given by the average line through
- // the 2 pairs of recpoints
- // However because of the poor position resolution of PPSD the direction is always taken as if we were
+ // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints
+ // However because of the poor position resolution of PPSD the direction is always taken as if we were
// in case 1.
TVector3 dir(0,0,0) ;
TMatrix dummy ;
emc->GetGlobalPosition(emcglobalpos, dummy) ;
-
-
- // The following commented code becomes valid once the PPSD provides
- // a reasonable position resolution, at least as good as EMC !
- // TVector3 ppsdlglobalpos ;
- // TVector3 ppsduglobalpos ;
- // if( fPpsdLowRecPoint ){ // certainly a photon that has concerted
- // fPpsdLowRecPoint->GetGlobalPosition(ppsdlglobalpos, mdummy) ;
- // dir = emcglobalpos - ppsdlglobalpos ;
- // if( fPpsdUpRecPoint ){ // not looks like a charged
- // fPpsdUpRecPoint->GetGlobalPosition(ppsduglobalpos, mdummy) ;
- // dir = ( dir + emcglobalpos - ppsduglobalpos ) * 0.5 ;
- // }
- // }
- // else { // looks like a neutral
- // dir = emcglobalpos ;
- // }
-
+
dir = emcglobalpos ;
dir.SetZ( -dir.Z() ) ; // why ?
- dir.SetMag(1.) ;
//account correction to the position of IP
Float_t xo,yo,zo ; //Coordinates of the origin
gAlice->Generator()->GetOrigin(xo,yo,zo) ;
TVector3 origin(xo,yo,zo);
dir = dir - origin ;
-
+ dir.SetMag(1.) ;
return dir ;
}
//____________________________________________________________________________
// Print table of reconstructed particles
AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ;
- TClonesArray * recParticles = gime->RecParticles() ;
-
- cout << "AliPHOSPIDv1: " << endl ;
- cout << " found " << recParticles->GetEntriesFast() << " RecParticles " << endl ;
+ TClonesArray * recParticles = gime->RecParticles(BranchName()) ;
+
+ TString message ;
+ message = "\nevent " ;
+ message += gAlice->GetEvNumber() ;
+ message += " found " ;
+ message += recParticles->GetEntriesFast();
+ message += " RecParticles\n" ;
if(strstr(option,"all")) { // printing found TS
-
- cout << " PARTICLE "
- << " Index " << endl ;
- // << " X "
- // << " Y "
- // << " Z "
- // << " # of primaries "
- // << " Primaries list " << endl;
+ message += "\n PARTICLE Index \n" ;
Int_t index ;
for (index = 0 ; index < recParticles->GetEntries() ; index++) {
AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ;
-
- Text_t particle[11];
- switch(rp->GetType()) {
- case AliPHOSFastRecParticle::kNEUTRALEM:
- strcpy( particle, "NEUTRAL_EM");
- break;
- case AliPHOSFastRecParticle::kNEUTRALHA:
- strcpy(particle, "NEUTRAL_HA");
- break;
- case AliPHOSFastRecParticle::kGAMMA:
- strcpy(particle, "GAMMA");
- break ;
- case AliPHOSFastRecParticle::kGAMMAHA:
- strcpy(particle, "GAMMA_H");
- break ;
- case AliPHOSFastRecParticle::kABSURDEM:
- strcpy(particle, "ABSURD_EM") ;
- break ;
- case AliPHOSFastRecParticle::kABSURDHA:
- strcpy(particle, "ABSURD_HA") ;
- break ;
- case AliPHOSFastRecParticle::kELECTRON:
- strcpy(particle, "ELECTRON") ;
- break ;
- case AliPHOSFastRecParticle::kCHARGEDHA:
- strcpy(particle, "CHARGED_HA") ;
- break ;
- }
-
- // Int_t * primaries;
- // Int_t nprimaries;
- // primaries = rp->GetPrimaries(nprimaries);
-
- cout << setw(15) << particle << " "
- << setw(3) << rp->GetIndexInList() << " " ;
- // << setw(4) << nprimaries << " ";
- // for (Int_t iprimary=0; iprimary<nprimaries; iprimary++)
- // cout << setw(4) << primaries[iprimary] << " ";
- cout << endl;
+ message += "\n" ;
+ message += rp->Name().Data() ;
+ message += " " ;
+ message += rp->GetIndexInList() ;
+ message += " " ;
+ message += rp->GetType() ;
}
- cout << "-------------------------------------------" << endl ;
}
-
+ Info("Print", message.Data() ) ;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff