// --- Standard library ---
-#include <Riostream.h>
// --- AliRoot header files ---
-#include "AliRun.h"
#include "AliGenerator.h"
#include "AliPHOS.h"
#include "AliPHOSPIDv1.h"
InitParameters() ;
fDefaultInit = kTRUE ;
+}
+
+//____________________________________________________________________________
+AliPHOSPIDv1::AliPHOSPIDv1(const AliPHOSPIDv1 & pid ):AliPHOSPID(pid)
+{
+ // ctor
+ InitParameters() ;
+ Init() ;
}
//____________________________________________________________________________
-AliPHOSPIDv1::AliPHOSPIDv1(const char * headerFile,const char * name, const Bool_t toSplit)
-:AliPHOSPID(headerFile, name,toSplit)
+AliPHOSPIDv1::AliPHOSPIDv1(const TString alirunFileName, const TString eventFolderName):AliPHOSPID(alirunFileName, eventFolderName)
{
//ctor with the indication on where to look for the track segments
InitParameters() ;
-
Init() ;
fDefaultInit = kFALSE ;
-
}
//____________________________________________________________________________
AliPHOSPIDv1::~AliPHOSPIDv1()
{
// 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 ;
- }
-}
+ delete [] fX ; // Principal input
+ delete [] fPPhoton ; // Photon Principal components
+ delete [] fPPi0 ; // Pi0 Principal components
+}
//____________________________________________________________________________
const TString AliPHOSPIDv1::BranchName() const
{
- TString branchName(GetName() ) ;
- branchName.Remove(branchName.Index(Version())-1) ;
- return branchName ;
+
+ return GetName() ;
}
//____________________________________________________________________________
// Make all memory allocations that are not possible in default constructor
// Add the PID task to the list of PHOS tasks
- if ( strcmp(GetTitle(), "") == 0 )
- SetTitle("galice.root") ;
-
- TString branchname(GetName()) ;
- branchname.Remove(branchname.Index(Version())-1) ;
- AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(),branchname.Data(),fToSplit ) ;
-
- // 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") ;
- }
-
- gime->PostPID(this) ;
- // create a folder on the white board //YSAlice/WhiteBoard/RecParticles/PHOS/recparticlesName
- gime->PostRecParticles(branchname) ;
-
+ AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ;
+
+ if ( !gime->PID() )
+ gime->PostPID(this) ;
}
//____________________________________________________________________________
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) ;
+ // Initialize PID parameters
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
+ SetEventRange(0,-1) ;
}
-//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetCpvtoEmcDistanceCut(const Float_t e, const TString Axis) const
+//________________________________________________________________________
+void AliPHOSPIDv1::Exec(Option_t *option)
{
- // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
- // Purity-Efficiency point
+ // Steering method to perform particle reconstruction and identification
+ // for the event range from fFirstEvent to fLastEvent.
+ // This range is optionally set by SetEventRange().
+ // if fLastEvent=-1 (by default), then process events until the end.
- 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) ;
+ if(strstr(option,"tim"))
+ gBenchmark->Start("PHOSPID");
+
+ if(strstr(option,"print")) {
+ Print() ;
+ return ;
+ }
- Float_t sig = a + TMath::Exp(b-c*e);
- return sig;
-}
-//____________________________________________________________________________
-const Double_t AliPHOSPIDv1::GetTimeGate(const Int_t Eff_Pur) const
-{
- // Get TimeGate parameter depending on Purity-Efficiency point
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
- if(Eff_Pur>2 || Eff_Pur<0)
- Error("GetTimeGate","Invalid Efficiency-Purity choice %d",Eff_Pur);
- return (*fParameters)(3,Eff_Pur) ;
-
+ if (fLastEvent == -1)
+ fLastEvent = gime->MaxEvent() - 1 ;
+ else
+ fLastEvent = TMath::Min(fLastEvent,gime->MaxEvent());
+ Int_t nEvents = fLastEvent - fFirstEvent + 1;
+
+ Int_t ievent ;
+ for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
+ gime->Event(ievent,"TR") ;
+ if(gime->TrackSegments() && //Skip events, where no track segments made
+ gime->TrackSegments()->GetEntriesFast()) {
+ MakeRecParticles() ;
+ WriteRecParticles();
+ if(strstr(option,"deb"))
+ PrintRecParticles(option) ;
+ //increment the total number of rec particles per run
+ fRecParticlesInRun += gime->RecParticles()->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) ;
+ }
+
+ Unload();
}
-//_____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const
+
+//____________________________________________________________________________
+const TString AliPHOSPIDv1::GetFileNamePrincipal(TString particle) const
{
- // Calculates the distance between the EMC RecPoint and the PPSD RecPoint
-
- const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ;
- TVector3 vecEmc ;
- TVector3 vecCpv ;
- 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 ;
+ //Get file name that contains the PCA for a particle ("photon or pi0")
+ particle.ToLower();
+ TString name;
+ if (particle=="photon") name = fFileNamePrincipalPhoton ;
+ else if (particle=="pi0" ) name = fFileNamePrincipalPi0 ;
+ else Error("GetFileNamePrincipal","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data());
+ return name;
}
+
//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv,const Int_t EffPur, const Float_t e) const
+const Float_t AliPHOSPIDv1::GetParameterCalibration(Int_t i) const
{
- 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
+ // Get the i-th parameter "Calibration"
+ Float_t param = 0.;
+ if (i>2 || i<0)
+ Error("GetParameterCalibration","Invalid parameter number: %d",i);
else
- return 0;//Charged
-
+ param = (*fParameters)(0,i);
+ return param;
}
//____________________________________________________________________________
-const Double_t AliPHOSPIDv1::GetCalibratedEnergy(const Float_t e) const
+const Float_t AliPHOSPIDv1::GetCalibratedEnergy(const Float_t e) const
{
// It calibrates Energy depending on the recpoint energy.
// The energy of the reconstructed cluster is corrected with
// 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;
+ Float_t p[]={0.,0.,0.};
+ for (Int_t i=0; i<3; i++) p[i] = GetParameterCalibration(i);
+ Float_t enerec = p[0] + p[1]*e + p[2]*e*e;
return enerec ;
}
-//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetPrincipalBit(const Double_t* P,const Int_t eff_pur, 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 X_center = GetEllipseParameter("x0", E);
- Double_t Y_center = GetEllipseParameter("y0", E);
-
- Double_t R = TMath::Power((P[0] - X_center)/A,2) +
- TMath::Power((P[1] - Y_center)/B,2) +
- C*(P[0] - X_center)*(P[1] - Y_center)/(A*B) ;
- //3 different ellipses defined
- if((eff_pur==2)&&(R <1./2.)) prinbit= 1;
- if((eff_pur==1)&&(R <2. )) prinbit= 1;
- if((eff_pur==0)&&(R <9./2.)) prinbit= 1;
-
- if(R<0)
- Error("GetPrincipalBit", "Negative square? R=%f \n",R) ;
-
- return prinbit;
-
-}
//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetPrincipalPi0Bit(const Double_t* P,const Int_t eff_pur, const Float_t E)const
+const Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) 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 X_center = GetEllipseParameterPi0("x0", E);
- Double_t Y_center = GetEllipseParameterPi0("y0", E);
-
- Double_t R = TMath::Power((P[0] - X_center)/A,2) +
- TMath::Power((P[1] - Y_center)/B,2) +
- C*(P[0] - X_center)*(P[1] - Y_center)/(A*B) ;
- //3 different ellipses defined
- if((eff_pur==2)&&(R <1./2.)) prinbit= 1;
- if((eff_pur==1)&&(R <2. )) prinbit= 1;
- if((eff_pur==0)&&(R <9./2.)) prinbit= 1;
-
- if(R<0)
- Error("GetPrincipalPi0Bit", "Negative square?") ;
-
- return prinbit;
-
+ // Get the i-th parameter "CPV-EMC distance" for the specified axis
+ Float_t param = 0.;
+ if(i>2 || i<0)
+ Error("GetParameterCpv2Emc","Invalid parameter number: %d",i);
+ else {
+ axis.ToLower();
+ if (axis == "x") param = (*fParameters)(1,i);
+ else if (axis == "z") param = (*fParameters)(2,i);
+ else Error("GetParameterCpv2Emc","Invalid axis name: %s",axis.Data());
+ }
+ return param;
}
-//_____________________________________________________________________________
-void AliPHOSPIDv1::SetCpvtoEmcDistanceCutParameters(Float_t e, Int_t Eff_Pur, TString Axis,Float_t cut)
-{
- // Set the parameters to calculate Cpvto EmcDistanceCut depending on the cluster energy and
- // Purity-Efficiency point
-
- if(Eff_Pur>2 || Eff_Pur<0)
- Error("SetCpvtoEmcDistanceCutParameters","Invalid Efficiency-Purity choice %d",Eff_Pur);
- 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,Eff_Pur) = cut ;
-}
-//_____________________________________________________________________________
-void AliPHOSPIDv1::SetTimeGate(Int_t Eff_Pur, Float_t gate)
+//____________________________________________________________________________
+const Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const
{
- // Set the parameter TimeGate depending on the cluster energy and
+ // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
// Purity-Efficiency point
- if(Eff_Pur>2 || Eff_Pur<0)
- Error("SetTimeGate","Invalid Efficiency-Purity choice %d",Eff_Pur);
-
- (*fParameters)(3,Eff_Pur)= 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
-
- // 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 maxLeng=255;
- char string[maxLeng];
-
- // 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());
+ axis.ToLower();
+ Float_t p[]={0.,0.,0.};
+ for (Int_t i=0; i<3; i++) p[i] = GetParameterCpv2Emc(i,axis);
+ Float_t sig = p[0] + TMath::Exp(p[1] - p[2]*e);
+ return sig;
+}
- Int_t i=0;
- // Read parameter file line-by-line and skip empty line and comments
- while (fgets(string,maxLeng,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++;
+//____________________________________________________________________________
+const Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const
+{
+ // Calculates the parameter param of the ellipse
+
+ particle.ToLower();
+ param. ToLower();
+ Float_t p[4]={0.,0.,0.,0.};
+ Float_t value = 0.0;
+ for (Int_t i=0; i<4; i++) p[i] = GetParameterToCalculateEllipse(particle,param,i);
+ if (particle == "photon") {
+ if (param.Contains("a")) e = TMath::Min((Double_t)e,70.);
+ else if (param.Contains("b")) e = TMath::Min((Double_t)e,70.);
+ else if (param.Contains("x0")) e = TMath::Max((Double_t)e,1.1);
}
- fclose(fd);
-}
+ value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3];
+ return value;
+}
-//________________________________________________________________________
-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
+//_____________________________________________________________________________
+const Float_t AliPHOSPIDv1::GetParameterPhotonBoundary (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;
+ // Get the parameter "i" to calculate the boundary on the moment M2x
+ // for photons at high p_T
+ Float_t param = 0;
+ if (i>3 || i<0)
+ Error("GetParameterPhotonBoundary","Wrong parameter number: %d\n",i);
+ else
+ param = (*fParameters)(14,i) ;
+ return param;
+}
- 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() ) ;
+//____________________________________________________________________________
+const Float_t AliPHOSPIDv1::GetParameterPi0Boundary (Int_t i) const
+{
+ // Get the parameter "i" to calculate the boundary on the moment M2x
+ // for pi0 at high p_T
+ Float_t param = 0;
+ if (i>2 || i<0)
+ Error("GetParameterPi0Boundary","Wrong parameter number: %d\n",i);
else
- par = (*fParameters)(p,i) ;
-
- return par;
+ param = (*fParameters)(15,i) ;
+ return param;
+}
-}
//____________________________________________________________________________
-const Double_t AliPHOSPIDv1::GetParameterToCalculatePi0Ellipse(const TString Param, const Int_t i) const
+const Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const
+{
+ // Get TimeGate parameter depending on Purity-Efficiency i:
+ // i=0 - Low purity, i=1 - Medium purity, i=2 - High purity
+ Float_t param = 0.;
+ if(i>2 || i<0)
+ Error("GetParameterTimeGate","Invalid Efficiency-Purity choice %d",i);
+ else
+ param = (*fParameters)(3,i) ;
+ return param;
+}
+
+//_____________________________________________________________________________
+const Float_t AliPHOSPIDv1::GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const
{
// Get the parameter "i" that is needed to calculate the ellipse
- // parameter "Param".
+ // parameter "param" for the particle "particle" ("photon" or "pi0")
- if(!fPi0Analysis) Error("GetParameterToCalculatePi0Ellipse", "Pi 0 Analysis is off") ;
+ particle.ToLower();
+ param. ToLower();
+ Int_t offset = -1;
+ if (particle == "photon") offset=0;
+ else if (particle == "pi0") offset=5;
+ else
+ Error("GetParameterToCalculateEllipse","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data());
Int_t p= -1;
- Double_t par = -1;
+ Float_t par = 0;
- 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 (param.Contains("a")) p=4+offset;
+ else if(param.Contains("b")) p=5+offset;
+ else if(param.Contains("c")) p=6+offset;
+ else if(param.Contains("x0"))p=7+offset;
+ else if(param.Contains("y0"))p=8+offset;
- 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() ) ;
+ 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;
+}
+
-}
//____________________________________________________________________________
-void AliPHOSPIDv1::SetCalibrationParameter(Int_t i,Double_t param)
+const Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * axis)const
{
- (*fParameters)(0,i) = param ;
+ // Calculates the distance between the EMC RecPoint and the PPSD RecPoint
+
+ const AliPHOSGeometry * geom = AliPHOSGetter::Instance()->PHOSGeometry() ;
+ TVector3 vecEmc ;
+ TVector3 vecCpv ;
+ 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 Double_t AliPHOSPIDv1::GetCalibrationParameter(const Int_t i) const
+const Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv,const Int_t effPur, Float_t e) const
{
- Float_t param = (*fParameters)(0,i);
- return param;
+ if(effPur>2 || effPur<0)
+ Error("GetCPVBit","Invalid Efficiency-Purity choice %d",effPur);
+
+ Float_t sigX = GetCpv2EmcDistanceCut("X",e);
+ Float_t sigZ = GetCpv2EmcDistanceCut("Z",e);
+
+ 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
}
+
//____________________________________________________________________________
-const Double_t AliPHOSPIDv1::GetEllipseParameter(const TString Param,Float_t E) const
+const Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p,const Int_t effPur, Float_t e)const
{
- // Calculates the parameter Param of the ellipse
+ //Is the particle inside de PCA ellipse?
- Double_t p[4]={0.,0.,0.,0.};
- Double_t value = 0.0;
- Int_t i;
+ particle.ToLower();
+ Int_t prinbit = 0 ;
+ Float_t a = GetEllipseParameter(particle,"a" , e);
+ Float_t b = GetEllipseParameter(particle,"b" , e);
+ Float_t c = GetEllipseParameter(particle,"c" , e);
+ Float_t x0 = GetEllipseParameter(particle,"x0", e);
+ Float_t y0 = GetEllipseParameter(particle,"y0", e);
+
+ Float_t r = TMath::Power((p[0] - x0)/a,2) +
+ TMath::Power((p[1] - y0)/b,2) +
+ c*(p[0] - x0)*(p[1] - y0)/(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(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;
-}
+ if(r<0)
+ Error("GetPrincipalBit", "Negative square?") ;
+
+ return prinbit;
+}
//____________________________________________________________________________
-// 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 Int_t AliPHOSPIDv1::GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const
+{
+ // Set bit for identified hard photons (E > 30 GeV)
+ // if the second moment M2x is below the boundary
+
+ Float_t e = emc->GetEnergy();
+ if (e < 30.0) return 0;
+ Float_t m2x = emc->GetM2x();
+ Float_t m2xBoundary = GetParameterPhotonBoundary(0) *
+ TMath::Exp(-TMath::Power(e-GetParameterPhotonBoundary(1),2)/2.0/
+ TMath::Power(GetParameterPhotonBoundary(2),2)) +
+ GetParameterPhotonBoundary(3);
+ Info("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary);
+ if (m2x < m2xBoundary)
+ return 1;// A hard photon
+ else
+ return 0;// Not a hard photon
+}
+
//____________________________________________________________________________
-const Double_t AliPHOSPIDv1::GetEllipseParameterPi0(const TString Param,Float_t E) const
+const Int_t AliPHOSPIDv1::GetHardPi0Bit(AliPHOSEmcRecPoint * emc) 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;
+ // Set bit for identified hard pi0 (E > 30 GeV)
+ // if the second moment M2x is above the boundary
+
+ Float_t e = emc->GetEnergy();
+ if (e < 30.0) return 0;
+ Float_t m2x = emc->GetM2x();
+ Float_t m2xBoundary = GetParameterPi0Boundary(0) +
+ e * GetParameterPi0Boundary(1);
+ Info("GetHardPi0Bit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary);
+ if (m2x > m2xBoundary)
+ return 1;// A hard pi0
+ else
+ return 0;// Not a hard pi0
}
+
//____________________________________________________________________________
+TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * )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 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.
-void AliPHOSPIDv1::Exec(Option_t * option)
-{
- //Steering method
+ TVector3 dir(0,0,0) ;
- if( strcmp(GetName(), "")== 0 )
- Init() ;
+ TVector3 emcglobalpos ;
+ TMatrix dummy ;
- if(strstr(option,"tim"))
- gBenchmark->Start("PHOSPID");
+ emc->GetGlobalPosition(emcglobalpos, dummy) ;
- if(strstr(option,"print")) {
- Print("") ;
- return ;
- }
+ dir = emcglobalpos ;
+ dir.SetZ( -dir.Z() ) ; // why ?
+ dir.SetMag(1.) ;
- AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
- if(gime->BranchExists("RecParticles") )
- return ;
- Int_t nevents = gime->MaxEvent() ;
- Int_t ievent ;
+ //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 ;
- 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) ;
- }
+ return dir ;
}
//____________________________________________________________________________
-void AliPHOSPIDv1::MakeRecParticles(){
-
+void AliPHOSPIDv1::MakeRecParticles()
+{
// Makes a RecParticle out of a TrackSegment
- AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
TObjArray * emcRecPoints = gime->EmcRecPoints() ;
TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
TClonesArray * trackSegments = gime->TrackSegments() ;
Fatal("MakeRecParticles", "-> emc(%d) = %d", ts->GetEmcIndex(), emc ) ;
}
- Float_t e = emc->GetEnergy() ;
+ Float_t e = emc->GetEnergy() ;
Float_t lambda[2] ;
emc->GetElipsAxis(lambda) ;
fX[5] = Emaxdtotal ;
fX[6] = emc->GetCoreEnergy() ;
- fPrincipal->X2P(fX,fP);
- if(fPi0Analysis)
- fPrincipalPi0->X2P(fX,fPPi0);
+ fPrincipalPhoton->X2P(fX,fPPhoton);
+ 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;
- }
+ fPPhoton[0]=-100.0; //We do not accept clusters with
+ fPPhoton[1]=-100.0; //one cell as a photon-like
+ fPPi0[0] =-100.0;
+ fPPi0[1] =-100.0;
}
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++){
+ for(Int_t effPur = 0; effPur < 3 ; effPur++){
// 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) ;
+ if(GetCPVBit(emc, cpv, effPur,e) == 1 )
+ rp->SetPIDBit(effPur) ;
// 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(time< (*fParameters)(2,effPur))
+ rp->SetPIDBit(effPur+3) ;
+ //Photon PCA
//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) ;
+ if(GetPrincipalBit("photon",fPPhoton,effPur,e) == 1)
+ rp->SetPIDBit(effPur+6) ;
- //Pi0 analysis
+ //Pi0 PCA
//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) ;
- }
+ if(GetPrincipalBit("pi0" ,fPPi0 ,effPur,e) == 1)
+ rp->SetPIDBit(effPur+9) ;
}
-
+ if(GetHardPhotonBit(emc))
+ rp->SetPIDBit(12) ;
+ if(GetHardPi0Bit (emc))
+ rp->SetPIDBit(13) ;
//Set momentum, energy and other parameters
Float_t encal = GetCalibratedEnergy(e);
rp->SetPolarisation(0,0,0);
index++ ;
}
-
}
-
+
//____________________________________________________________________________
-void AliPHOSPIDv1::Print()
+void AliPHOSPIDv1::Print() const
{
// Print the parameters used for the particle type identification
- 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() ) ;
+ Info("Print", "=============== AliPHOSPIDv1 ================") ;
+ printf("Making PID\n") ;
+ printf(" Pricipal analysis file from 0.5 to 100 %s\n", fFileNamePrincipalPhoton.Data() ) ;
+ printf(" Name of parameters file %s\n", fFileNameParameters.Data() ) ;
+ printf(" Matrix of Parameters: 14x4\n") ;
+ printf(" Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]\n") ;
+ printf(" RCPV 2x3 rows x and z, columns function cut parameters\n") ;
+ printf(" TOF 1x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]\n") ;
+ printf(" PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]\n") ;
+ Printf(" Pi0 PCA 5x3 [5 ellipse parametres and 3 parametres to calculate them: A + B* E + C * E^2]\n") ;
fParameters->Print() ;
}
-//____________________________________________________________________________
-void AliPHOSPIDv1::WriteRecParticles(Int_t event)
-{
-
- AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ;
- TClonesArray * recParticles = gime->RecParticles() ;
- recParticles->Expand(recParticles->GetEntriesFast() ) ;
- TTree * treeR ;
-
- 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() ;
- }
-
- //First rp
- Int_t bufferSize = 32000 ;
- TBranch * rpBranch = treeR->Branch("PHOSRP",&recParticles,bufferSize);
- rpBranch->SetTitle(BranchName());
-
-
- //second, pid
- Int_t splitlevel = 0 ;
- AliPHOSPIDv1 * pid = this ;
- TBranch * pidBranch = treeR->Branch("AliPHOSPID","AliPHOSPIDv1",&pid,bufferSize,splitlevel);
- pidBranch->SetTitle(BranchName());
-
- rpBranch->Fill() ;
- pidBranch->Fill() ;
-
- treeR->AutoSave() ; //Write(0,kOverwrite) ;
- if(gAlice->TreeR()!=treeR){
- treeR->Delete();
- }
-}
-//____________________________________________________________________________
-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 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) ;
-
- TVector3 emcglobalpos ;
- TMatrix dummy ;
-
- emc->GetGlobalPosition(emcglobalpos, dummy) ;
-
- dir = emcglobalpos ;
- dir.SetZ( -dir.Z() ) ; // why ?
-
- //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 ;
-}
//____________________________________________________________________________
void AliPHOSPIDv1::PrintRecParticles(Option_t * option)
{
// Print table of reconstructed particles
- AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ;
+ AliPHOSGetter *gime = AliPHOSGetter::Instance() ;
- TClonesArray * recParticles = gime->RecParticles(BranchName()) ;
+ TClonesArray * recParticles = gime->RecParticles() ;
TString message ;
message = "\nevent " ;
Info("Print", message.Data() ) ;
}
+//____________________________________________________________________________
+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
+ fPPhoton = new double[7]; // Eigenvalues of the PCA
+ fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA
+
+ // Read photon principals from the photon file
+
+ fFileNamePrincipalPhoton = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ;
+ TFile f( fFileNamePrincipalPhoton.Data(), "read" ) ;
+ fPrincipalPhoton = dynamic_cast<TPrincipal*> (f.Get("principal")) ;
+ f.Close() ;
+
+ // Read pi0 principals from the pi0 file
+
+ fFileNamePrincipalPi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ;
+ TFile fPi0( fFileNamePrincipalPi0.Data(), "read" ) ;
+ fPrincipalPi0 = dynamic_cast<TPrincipal*> (fPi0.Get("principal")) ;
+ fPi0.Close() ;
+
+ // Open parameters file and initialization of the Parameters matrix.
+ // In the File Parameters.dat are all the parameters. These are introduced
+ // in a matrix of 16x4
+ //
+ // All the parameters defined in this file are, in order of row:
+ // line 0 : calibration
+ // lines 1,2 : CPV rectangular cat for X and Z
+ // line 3 : TOF cut
+ // lines 4-8 : parameters to calculate photon PCA ellipse
+ // lines 9-13: parameters to calculate pi0 PCA ellipse
+ // lines 14-15: parameters to calculate border for high-pt photons and pi0
+
+ fFileNameParameters = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat");
+ fParameters = new TMatrix(16,4) ;
+ const Int_t maxLeng=255;
+ char string[maxLeng];
+
+ // Open a text file with PID parameters
+ FILE *fd = fopen(fFileNameParameters.Data(),"r");
+ if (!fd)
+ Fatal("SetParameter","File %s with a PID parameters cannot be opened\n",
+ fFileNameParameters.Data());
+
+ Int_t i=0;
+ // Read parameter file line-by-line and skip empty line and comments
+ while (fgets(string,maxLeng,fd) != NULL) {
+ if (string[0] == '\n' ) continue;
+ if (string[0] == '!' ) continue;
+ sscanf(string, "%f %f %f %f",
+ &(*fParameters)(i,0), &(*fParameters)(i,1),
+ &(*fParameters)(i,2), &(*fParameters)(i,3));
+ i++;
+ //printf("line %d: %s",i,string);
+ }
+ fclose(fd);
+}
+
+//____________________________________________________________________________
+void AliPHOSPIDv1::SetParameterCalibration(Int_t i,Float_t param)
+{
+ // Set parameter "Calibration" i to a value param
+ if(i>2 || i<0)
+ Error("SetParameterCalibration","Invalid parameter number: %d",i);
+ else
+ (*fParameters)(0,i) = param ;
+}
+
+//____________________________________________________________________________
+void AliPHOSPIDv1::SetParameterCpv2Emc(Int_t i, TString axis, Float_t cut)
+{
+ // Set the parameters to calculate Cpv-to-Emc Distance Cut depending on
+ // Purity-Efficiency point i
+
+ if(i>2 || i<0)
+ Error("SetParameterCpv2Emc","Invalid parameter number: %d",i);
+ else {
+ axis.ToLower();
+ if (axis == "x") (*fParameters)(1,i) = cut;
+ else if (axis == "z") (*fParameters)(2,i) = cut;
+ else Error("SetParameterCpv2Emc","Invalid axis name: %s",axis.Data());
+ }
+}
+
+//____________________________________________________________________________
+void AliPHOSPIDv1::SetParameterPhotonBoundary(Int_t i,Float_t param)
+{
+ // Set parameter "Hard photon boundary" i to a value param
+ if(i>4 || i<0)
+ Error("SetParameterPhotonBoundary","Invalid parameter number: %d",i);
+ else
+ (*fParameters)(14,i) = param ;
+}
+
+//____________________________________________________________________________
+void AliPHOSPIDv1::SetParameterPi0Boundary(Int_t i,Float_t param)
+{
+ // Set parameter "Hard pi0 boundary" i to a value param
+ if(i>1 || i<0)
+ Error("SetParameterPi0Boundary","Invalid parameter number: %d",i);
+ else
+ (*fParameters)(15,i) = param ;
+}
+
+//_____________________________________________________________________________
+void AliPHOSPIDv1::SetParameterTimeGate(Int_t i, Float_t gate)
+{
+ // Set the parameter TimeGate depending on Purity-Efficiency point i
+ if (i>2 || i<0)
+ Error("SetParameterTimeGate","Invalid Efficiency-Purity choice %d",i);
+ else
+ (*fParameters)(3,i)= gate ;
+}
+//_____________________________________________________________________________
+void AliPHOSPIDv1::SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t par)
+{
+ // Set the parameter "i" that is needed to calculate the ellipse
+ // parameter "param" for a particle "particle"
+
+ particle.ToLower();
+ param. ToLower();
+ Int_t p= -1;
+ Int_t offset=0;
+
+ if (particle == "photon") offset=0;
+ else if (particle == "pi0") offset=5;
+ else
+ Error("SetParameterToCalculateEllipse","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data());
+
+ if (param.Contains("a")) p=4+offset;
+ else if(param.Contains("b")) p=5+offset;
+ else if(param.Contains("c")) p=6+offset;
+ else if(param.Contains("x0"))p=7+offset;
+ else if(param.Contains("y0"))p=8+offset;
+ 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::Unload()
+{
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
+ gime->PhosLoader()->UnloadRecPoints() ;
+ gime->PhosLoader()->UnloadTracks() ;
+ gime->PhosLoader()->UnloadRecParticles() ;
+}
+
+//____________________________________________________________________________
+void AliPHOSPIDv1::WriteRecParticles()
+{
+
+ AliPHOSGetter *gime = AliPHOSGetter::Instance() ;
+
+ TClonesArray * recParticles = gime->RecParticles() ;
+ recParticles->Expand(recParticles->GetEntriesFast() ) ;
+ TTree * treeP = gime->TreeP();
+
+ //First rp
+ Int_t bufferSize = 32000 ;
+ TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize);
+ rpBranch->SetTitle(BranchName());
+
+ rpBranch->Fill() ;
+
+ gime->WriteRecParticles("OVERWRITE");
+ gime->WritePID("OVERWRITE");
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff