// --- 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(AliPHOSPIDv1 & pid ):AliPHOSPID(pid)
+AliPHOSPIDv1::AliPHOSPIDv1(const AliPHOSPIDv1 & pid ):AliPHOSPID(pid)
{
// ctor
InitParameters() ;
-
Init() ;
- fDefaultInit = kFALSE ;
}
//____________________________________________________________________________
-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 [] fPPhoton ; // Photon Principal components
delete [] fPPi0 ; // Pi0 Principal components
-
- if (!fDefaultInit)
- fSplitFile = 0 ;
}
-
//____________________________________________________________________________
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 ) ;
-
- 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) ;
}
//____________________________________________________________________________
fRecParticlesInRun = 0 ;
fNEvent = 0 ;
fRecParticlesInRun = 0 ;
- TString pidName( GetName()) ;
- if (pidName.IsNull() )
- pidName = "Default" ;
- pidName.Append(":") ;
- pidName.Append(Version()) ;
- SetName(pidName) ;
SetParameters() ; // fill the parameters matrix from parameters file
}
+//________________________________________________________________________
+void AliPHOSPIDv1::Exec(Option_t * option)
+{
+ //Steering method
+
+
+ if(strstr(option,"tim"))
+ gBenchmark->Start("PHOSPID");
+
+ if(strstr(option,"print")) {
+ Print() ;
+ return ;
+ }
+
+
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
+
+ Int_t nevents = gime->MaxEvent() ;
+ Int_t ievent ;
+
+
+ for(ievent = 0; ievent < nevents; 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 TString AliPHOSPIDv1::GetFileNamePrincipal(TString particle) const
{
}
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetParameterCalibration(const Int_t i) const
+const Float_t AliPHOSPIDv1::GetParameterCalibration(Int_t i) const
{
// Get the i-th parameter "Calibration"
Float_t param = 0.;
return param;
}
+//____________________________________________________________________________
+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
+// the formula A + B* E + C* E^2, whose parameters where obtained
+// through the study of the reconstructed energy distribution of
+// monoenergetic photons.
+
+ 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 Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) const
{
}
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetParameterTimeGate(const Int_t i) const
+const Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) 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;
+ // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
+ // Purity-Efficiency point
+
+ 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;
}
-//_____________________________________________________________________________
-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" for the particle "particle" ("photon" or "pi0")
+//____________________________________________________________________________
+const Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const
+{
+ // Calculates the parameter param of the ellipse
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;
- Float_t par = 0;
-
- 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;
+ 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);
+ }
- 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;
+ value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3];
+ return value;
}
//_____________________________________________________________________________
}
//____________________________________________________________________________
-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
-// the formula A + B* E + C* E^2, whose parameters where obtained
-// through the study of the reconstructed energy distribution of
-// monoenergetic photons.
-
- 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 Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const
-{
- // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
- // Purity-Efficiency point
-
- 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;
-}
-
-//____________________________________________________________________________
-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);
- }
-
- value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3];
- return value;
-}
-
-//____________________________________________________________________________
-void AliPHOSPIDv1::SetParameterCalibration(Int_t i,Float_t param)
+const Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const
{
- // Set parameter "Calibration" i to a value param
+ // 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("SetParameterCalibration","Invalid parameter number: %d",i);
+ Error("GetParameterTimeGate","Invalid Efficiency-Purity choice %d",i);
else
- (*fParameters)(0,i) = param ;
+ param = (*fParameters)(3,i) ;
+ return 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::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"
-
+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" for the particle "particle" ("photon" or "pi0")
+
particle.ToLower();
param. ToLower();
- Int_t p= -1;
- Int_t offset=0;
-
+ Int_t offset = -1;
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());
+ Error("GetParameterToCalculateEllipse","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data());
+
+ Int_t p= -1;
+ Float_t par = 0;
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::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);
+ 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
- (*fParameters)(14,i) = param ;
+ par = (*fParameters)(p,i) ;
+
+ return par;
}
-//____________________________________________________________________________
-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 ;
-}
//____________________________________________________________________________
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() ;
+ const AliPHOSGeometry * geom = AliPHOSGetter::Instance()->PHOSGeometry() ;
TVector3 vecEmc ;
TVector3 vecCpv ;
if(cpv){
return 100000000 ;
}
//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv,const Int_t effPur, const Float_t e) const
+const Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv,const Int_t effPur, Float_t e) const
{
if(effPur>2 || effPur<0)
Error("GetCPVBit","Invalid Efficiency-Purity choice %d",effPur);
}
//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p,const Int_t effPur, const Float_t e)const
+const Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p,const Int_t effPur, Float_t e)const
{
//Is the particle inside de PCA ellipse?
}
//____________________________________________________________________________
-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);
-}
+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 ;
- }
-
-// gAlice->GetEvent(0) ;
-
-// //check, if the branch with name of this" already exits?
-// if (gAlice->TreeR()) {
-// TObjArray * lob = (TObjArray*)gAlice->TreeR()->GetListOfBranches() ;
-// TIter next(lob) ;
-// TBranch * branch = 0 ;
-// Bool_t phospidfound = kFALSE, pidfound = kFALSE ;
-
-// TString taskName(GetName()) ;
-// taskName.Remove(taskName.Index(Version())-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 ( phospidfound || pidfound ) {
-// Error("Exec", "RecParticles and/or PIDtMaker branch with name %s already exists", taskName.Data() ) ;
-// return ;
-// }
-// }
-
-// Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
-// Int_t ievent ;
-// AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
-
- AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
- if(gime->BranchExists("RecParticles") )
- return ;
- Int_t nevents = gime->MaxEvent() ; //(Int_t) gAlice->TreeE()->GetEntries() ;
- Int_t ievent ;
-
-
- for(ievent = 0; ievent < nevents; ievent++){
- gime->Event(ievent,"R") ;
-
- MakeRecParticles() ;
-
- WriteRecParticles(ievent);
-
- if(strstr(option,"deb"))
- PrintRecParticles(option) ;
+ dir = emcglobalpos ;
+ dir.SetZ( -dir.Z() ) ; // why ?
+ dir.SetMag(1.) ;
- //increment the total number of rec particles per run
- fRecParticlesInRun += gime->RecParticles(BranchName())->GetEntriesFast() ;
+ //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 ;
- }
-
- 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 ;
}
//____________________________________________________________________________
{
// 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() ;
}
//____________________________________________________________________________
-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(), fFileNamePrincipalPhoton.Data(), fFileNameParameters.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 ?
- 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 ;
-
- 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