// --- AliRoot header files ---
+#include "AliGenerator.h"
#include "AliPHOSGeometry.h"
#include "AliPHOSEmcRecPoint.h"
#include "AliRun.h"
+#include "AliPHOSIndexToObject.h"
ClassImp(AliPHOSEmcRecPoint)
fMulDigit = 0 ;
fAmp = 0. ;
fEnergyList = new Float_t[fMaxDigit];
- AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
- fDelta = phosgeom->GetCrystalSize(0) ;
+ fGeom = AliPHOSGeometry::GetInstance() ;
+ fDelta = ((AliPHOSGeometry *) fGeom)->GetCrystalSize(0) ;
fW0 = W0 ;
fLocMaxCut = LocMaxCut ;
fLocPos.SetX(1000000.) ; //Local position should be evaluated
+
}
//____________________________________________________________________________
-void AliPHOSEmcRecPoint::AddDigit(AliDigitNew & digit, Float_t Energy)
+AliPHOSEmcRecPoint::~AliPHOSEmcRecPoint()
+{
+ // dtor
+ if ( fEnergyList )
+ delete[] fEnergyList ;
+}
+
+//____________________________________________________________________________
+void AliPHOSEmcRecPoint::AddDigit(AliPHOSDigit & digit, Float_t Energy)
{
// Adds a digit to the RecPoint
// and accumulates the total amplitude and the multiplicity
if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists
fMaxDigit*=2 ;
- int * tempo = new ( int[fMaxDigit] ) ;
+ Int_t * tempo = new ( Int_t[fMaxDigit] ) ;
Float_t * tempoE = new ( Float_t[fMaxDigit] ) ;
Int_t index ;
for ( index = 0 ; index < fMulDigit ; index++ ){
- tempo[index] = fDigitsList[index] ;
+ tempo[index] = fDigitsList[index] ;
tempoE[index] = fEnergyList[index] ;
}
delete [] fDigitsList ;
- fDigitsList = new ( int[fMaxDigit] ) ;
+ fDigitsList = new ( Int_t[fMaxDigit] ) ;
delete [] fEnergyList ;
fEnergyList = new ( Float_t[fMaxDigit] ) ;
delete [] tempoE ;
} // if
- fDigitsList[fMulDigit] = (int) &digit ;
- fEnergyList[fMulDigit++] = Energy ;
+ fDigitsList[fMulDigit] = digit.GetIndexInList() ;
+ fEnergyList[fMulDigit] = Energy ;
+ fMulDigit++ ;
fAmp += Energy ;
}
//____________________________________________________________________________
-Bool_t AliPHOSEmcRecPoint::AreNeighbours(AliPHOSDigit * digit1, AliPHOSDigit * digit2 )
+Bool_t AliPHOSEmcRecPoint::AreNeighbours(AliPHOSDigit * digit1, AliPHOSDigit * digit2 ) const
{
// Tells if (true) or not (false) two digits are neighbors)
}
//____________________________________________________________________________
-Int_t AliPHOSEmcRecPoint::Compare(TObject * obj)
+Int_t AliPHOSEmcRecPoint::Compare(const TObject * obj) const
{
// Compares two RecPoints according to their position in the PHOS modules
AliPHOSEmcRecPoint * clu = (AliPHOSEmcRecPoint *)obj ;
- Int_t phosmod1 = this->GetPHOSMod() ;
+ Int_t phosmod1 = GetPHOSMod() ;
Int_t phosmod2 = clu->GetPHOSMod() ;
TVector3 locpos1;
// static Int_t pxold, pyold;
- static TGraph * digitgraph = 0 ;
-
- if (!gPad->IsEditable()) return;
-
- TH2F * histo = 0 ;
- TCanvas * histocanvas ;
-
- switch (event) {
-
- case kButton1Down: {
- AliPHOSDigit * digit ;
- AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
- Int_t iDigit;
- Int_t relid[4] ;
-
- const Int_t fMulDigit = AliPHOSEmcRecPoint::GetDigitsMultiplicity() ;
- Float_t * xi = new Float_t[fMulDigit] ;
- Float_t * zi = new Float_t[fMulDigit] ;
-
- // create the histogram for the single cluster
- // 1. gets histogram boundaries
- Float_t ximax = -999. ;
- Float_t zimax = -999. ;
- Float_t ximin = 999. ;
- Float_t zimin = 999. ;
-
- for(iDigit=0; iDigit<fMulDigit; iDigit++) {
- digit = (AliPHOSDigit *) fDigitsList[iDigit];
- phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
- phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]);
- if ( xi[iDigit] > ximax )
- ximax = xi[iDigit] ;
- if ( xi[iDigit] < ximin )
- ximin = xi[iDigit] ;
- if ( zi[iDigit] > zimax )
- zimax = zi[iDigit] ;
- if ( zi[iDigit] < zimin )
- zimin = zi[iDigit] ;
- }
- ximax += phosgeom->GetCrystalSize(0) / 2. ;
- zimax += phosgeom->GetCrystalSize(2) / 2. ;
- ximin -= phosgeom->GetCrystalSize(0) / 2. ;
- zimin -= phosgeom->GetCrystalSize(2) / 2. ;
- Int_t xdim = (int)( (ximax - ximin ) / phosgeom->GetCrystalSize(0) + 0.5 ) ;
- Int_t zdim = (int)( (zimax - zimin ) / phosgeom->GetCrystalSize(2) + 0.5 ) ;
-
- // 2. gets the histogram title
-
- Text_t title[100] ;
- sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ;
+ AliPHOSIndexToObject * please = AliPHOSIndexToObject::GetInstance() ;
- if (!histo) {
- delete histo ;
- histo = 0 ;
- }
- histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ;
-
- Float_t x, z ;
- for(iDigit=0; iDigit<fMulDigit; iDigit++) {
- digit = (AliPHOSDigit *) fDigitsList[iDigit];
- phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
- phosgeom->RelPosInModule(relid, x, z);
- histo->Fill(x, z, fEnergyList[iDigit] ) ;
- }
-
- if (!digitgraph) {
- digitgraph = new TGraph(fMulDigit,xi,zi);
- digitgraph-> SetMarkerStyle(5) ;
- digitgraph-> SetMarkerSize(1.) ;
- digitgraph-> SetMarkerColor(1) ;
- digitgraph-> Paint("P") ;
- }
-
- Print() ;
- histocanvas = new TCanvas("cluser", "a single cluster", 600, 500) ;
- histocanvas->Draw() ;
- histo->Draw("lego1") ;
-
- delete[] xi ;
- delete[] zi ;
-
- break;
- }
-
- case kButton1Up:
- if (digitgraph) {
- delete digitgraph ;
- digitgraph = 0 ;
- }
- break;
+ static TGraph * digitgraph = 0 ;
+
+ if (!gPad->IsEditable()) return;
+
+ TH2F * histo = 0 ;
+ TCanvas * histocanvas ;
+
+ switch (event) {
+
+ case kButton1Down: {
+ AliPHOSDigit * digit ;
+ AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
+ Int_t iDigit;
+ Int_t relid[4] ;
+
+ const Int_t kMulDigit = AliPHOSEmcRecPoint::GetDigitsMultiplicity() ;
+ Float_t * xi = new Float_t[kMulDigit] ;
+ Float_t * zi = new Float_t[kMulDigit] ;
+
+ // create the histogram for the single cluster
+ // 1. gets histogram boundaries
+ Float_t ximax = -999. ;
+ Float_t zimax = -999. ;
+ Float_t ximin = 999. ;
+ Float_t zimin = 999. ;
+
+ for(iDigit=0; iDigit<kMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) ( please->GimeDigit(fDigitsList[iDigit]) ) ;
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]);
+ if ( xi[iDigit] > ximax )
+ ximax = xi[iDigit] ;
+ if ( xi[iDigit] < ximin )
+ ximin = xi[iDigit] ;
+ if ( zi[iDigit] > zimax )
+ zimax = zi[iDigit] ;
+ if ( zi[iDigit] < zimin )
+ zimin = zi[iDigit] ;
+ }
+ ximax += phosgeom->GetCrystalSize(0) / 2. ;
+ zimax += phosgeom->GetCrystalSize(2) / 2. ;
+ ximin -= phosgeom->GetCrystalSize(0) / 2. ;
+ zimin -= phosgeom->GetCrystalSize(2) / 2. ;
+ Int_t xdim = (int)( (ximax - ximin ) / phosgeom->GetCrystalSize(0) + 0.5 ) ;
+ Int_t zdim = (int)( (zimax - zimin ) / phosgeom->GetCrystalSize(2) + 0.5 ) ;
+
+ // 2. gets the histogram title
+
+ Text_t title[100] ;
+ sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ;
+
+ if (!histo) {
+ delete histo ;
+ histo = 0 ;
+ }
+ histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ;
+
+ Float_t x, z ;
+ for(iDigit=0; iDigit<kMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) ( please->GimeDigit(fDigitsList[iDigit]) ) ;
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ phosgeom->RelPosInModule(relid, x, z);
+ histo->Fill(x, z, fEnergyList[iDigit] ) ;
+ }
+
+ if (!digitgraph) {
+ digitgraph = new TGraph(kMulDigit,xi,zi);
+ digitgraph-> SetMarkerStyle(5) ;
+ digitgraph-> SetMarkerSize(1.) ;
+ digitgraph-> SetMarkerColor(1) ;
+ digitgraph-> Paint("P") ;
+ }
+
+ Print() ;
+ histocanvas = new TCanvas("cluser", "a single cluster", 600, 500) ;
+ histocanvas->Draw() ;
+ histo->Draw("lego1") ;
+
+ delete[] xi ;
+ delete[] zi ;
+
+ break;
+ }
+
+ case kButton1Up:
+ if (digitgraph) {
+ delete digitgraph ;
+ digitgraph = 0 ;
+ }
+ break;
}
}
//____________________________________________________________________________
-Float_t AliPHOSEmcRecPoint::GetDispersion()
+Float_t AliPHOSEmcRecPoint::GetDispersion() const
{
// Calculates the dispersion of the shower at the origine of the RecPoint
+ AliPHOSIndexToObject * please = AliPHOSIndexToObject::GetInstance() ;
+
Float_t d = 0 ;
Float_t wtot = 0 ;
AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
Int_t iDigit;
- for(iDigit=0; iDigit<fMulDigit; iDigit++) {
- digit = (AliPHOSDigit *) fDigitsList[iDigit];
+ for(iDigit=0; iDigit < fMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) ( please->GimeDigit(fDigitsList[iDigit]) ) ;
Int_t relid[4] ;
Float_t xi ;
Float_t zi ;
return TMath::Sqrt(d) ;
}
+//______________________________________________________________________________
+Float_t AliPHOSEmcRecPoint::CoreEnergy()
+{
+ //This function calculates energy in the core,
+ //i.e. within radius rad = 3cm. Beyond this radius
+ //in accoradnce with shower profile energy deposition
+ // should be less than 2%
+
+ AliPHOSIndexToObject * please = AliPHOSIndexToObject::GetInstance() ;
+
+ Float_t eCore = 0 ;
+ Float_t coreRadius = 3 ;
+
+ TVector3 locpos;
+ GetLocalPosition(locpos);
+ Float_t x = locpos.X() ;
+ Float_t z = locpos.Z() ;
+
+ AliPHOSDigit * digit ;
+ AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
+
+ Int_t iDigit;
+ for(iDigit=0; iDigit < fMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) ( please->GimeDigit(fDigitsList[iDigit]) ) ;
+ Int_t relid[4] ;
+ Float_t xi ;
+ Float_t zi ;
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ phosgeom->RelPosInModule(relid, xi, zi);
+ Float_t distance = TMath::Sqrt((xi-x)*(xi-x)+(zi-z)*(zi-z)) ;
+ if(distance < coreRadius)
+ eCore += fEnergyList[iDigit] ;
+ }
+
+return eCore ;
+}
//____________________________________________________________________________
void AliPHOSEmcRecPoint::GetElipsAxis(Float_t * lambda)
{
// Calculates the axis of the shower ellipsoid
-
- Float_t wtot = 0. ;
- Float_t x = 0.;
- Float_t z = 0.;
- Float_t dxx = 0.;
- Float_t dzz = 0.;
- Float_t dxz = 0.;
+
+ AliPHOSIndexToObject * please = AliPHOSIndexToObject::GetInstance() ;
+
+ Double_t wtot = 0. ;
+ Double_t x = 0.;
+ Double_t z = 0.;
+ Double_t dxx = 0.;
+ Double_t dzz = 0.;
+ Double_t dxz = 0.;
AliPHOSDigit * digit ;
AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
Int_t iDigit;
for(iDigit=0; iDigit<fMulDigit; iDigit++) {
- digit = (AliPHOSDigit *) fDigitsList[iDigit];
+ digit = (AliPHOSDigit *) ( please->GimeDigit(fDigitsList[iDigit]) ) ;
Int_t relid[4] ;
Float_t xi ;
Float_t zi ;
phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
phosgeom->RelPosInModule(relid, xi, zi);
- Float_t w = TMath::Max(0.,fW0+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
+ Double_t w = TMath::Max(0.,fW0+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
dxx += w * xi * xi ;
x += w * xi ;
dzz += w * zi * zi ;
dxz += w * xi * zi ;
wtot += w ;
}
-
dxx /= wtot ;
x /= wtot ;
dxx -= x * x ;
dxz /= wtot ;
dxz -= x * z ;
- lambda[0] = TMath::Sqrt( 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ) ;
- lambda[1] = TMath::Sqrt( 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ) ;
+// //Apply correction due to non-perpendicular incidence
+// Double_t CosX ;
+// Double_t CosZ ;
+// Double_t DistanceToIP= (Double_t ) ((AliPHOSGeometry *) fGeom)->GetIPtoCrystalSurface() ;
+
+// CosX = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+x*x) ;
+// CosZ = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+z*z) ;
+
+// dxx = dxx/(CosX*CosX) ;
+// dzz = dzz/(CosZ*CosZ) ;
+// dxz = dxz/(CosX*CosZ) ;
+
+
+ lambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
+ if(lambda[0] > 0)
+ lambda[0] = TMath::Sqrt(lambda[0]) ;
+
+ lambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
+ if(lambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda.
+ lambda[1] = TMath::Sqrt(lambda[1]) ;
+ else
+ lambda[1]= 0. ;
}
//____________________________________________________________________________
-void AliPHOSEmcRecPoint::GetLocalPosition(TVector3 &LPos)
+void AliPHOSEmcRecPoint::EvalAll(void )
+{
+ AliPHOSRecPoint::EvalAll() ;
+ EvalLocalPosition() ;
+}
+//____________________________________________________________________________
+void AliPHOSEmcRecPoint::EvalLocalPosition(void )
{
// Calculates the center of gravity in the local PHOS-module coordinates
-
- if( fLocPos.X() < 1000000.) { // already evaluated
- LPos = fLocPos ;
- return ;
- }
+
+ AliPHOSIndexToObject * please = AliPHOSIndexToObject::GetInstance() ;
Float_t wtot = 0. ;
Int_t iDigit;
-
for(iDigit=0; iDigit<fMulDigit; iDigit++) {
- digit = (AliPHOSDigit *) fDigitsList[iDigit];
+ digit = (AliPHOSDigit *) ( please->GimeDigit(fDigitsList[iDigit]) );
Float_t xi ;
Float_t zi ;
x /= wtot ;
z /= wtot ;
- fLocPos.SetX(x) ;
+
+ // Correction for the depth of the shower starting point (TDR p 127)
+ Float_t para = 0.925 ;
+ Float_t parb = 6.52 ;
+
+ Float_t xo,yo,zo ; //Coordinates of the origin
+ gAlice->Generator()->GetOrigin(xo,yo,zo) ;
+
+ Float_t phi = phosgeom->GetPHOSAngle(relid[0]) ;
+
+ //Transform to the local ref.frame
+ Float_t xoL,yoL ;
+ xoL = xo*TMath::Cos(phi)-yo*TMath::Sin(phi) ;
+ yoL = xo*TMath::Sin(phi)+yo*TMath::Cos(phi) ;
+
+ Float_t radius = TMath::Sqrt((xoL-x)*(xoL-x)+
+ (phosgeom->GetIPtoCrystalSurface()-yoL)*(phosgeom->GetIPtoCrystalSurface()-yoL)+
+ (zo-z)*(zo-z));
+
+ Float_t incidencephi = TMath::ATan((x-xoL ) / radius) ;
+ Float_t incidencetheta = TMath::ATan((z-zo) / radius) ;
+
+ Float_t depthx = ( para * TMath::Log(fAmp) + parb ) * TMath::Sin(incidencephi) ;
+ Float_t depthz = ( para * TMath::Log(fAmp) + parb ) * TMath::Sin(incidencetheta) ;
+
+
+ fLocPos.SetX(x - depthx) ;
fLocPos.SetY(0.) ;
- fLocPos.SetZ(z) ;
+ fLocPos.SetZ(z - depthz) ;
- LPos = fLocPos ;
}
//____________________________________________________________________________
-Float_t AliPHOSEmcRecPoint::GetMaximalEnergy(void)
+Float_t AliPHOSEmcRecPoint::GetMaximalEnergy(void) const
{
// Finds the maximum energy in the cluster
}
//____________________________________________________________________________
-Int_t AliPHOSEmcRecPoint::GetMultiplicityAtLevel(const Float_t H)
+Int_t AliPHOSEmcRecPoint::GetMultiplicityAtLevel(const Float_t H) const
{
// Calculates the multiplicity of digits with energy larger than H*energy
}
//____________________________________________________________________________
-Int_t AliPHOSEmcRecPoint::GetNumberOfLocalMax(Int_t * maxAt, Float_t * maxAtEnergy)
+Int_t AliPHOSEmcRecPoint::GetNumberOfLocalMax(Int_t * maxAt, Float_t * maxAtEnergy) const
{
// Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum
// energy difference between two local maxima
+ AliPHOSIndexToObject * please = AliPHOSIndexToObject::GetInstance() ;
+
AliPHOSDigit * digit ;
AliPHOSDigit * digitN ;
Int_t iDigit ;
for(iDigit = 0; iDigit < fMulDigit; iDigit++){
- maxAt[iDigit] = fDigitsList[iDigit] ;
+ maxAt[iDigit] = (Int_t) ( please->GimeDigit(fDigitsList[iDigit]) ) ;
}
for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) {
if(maxAt[iDigit] != -1) {
digit = (AliPHOSDigit *) maxAt[iDigit] ;
-
+
for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) {
- digitN = (AliPHOSDigit *) fDigitsList[iDigitN] ;
+ digitN = (AliPHOSDigit *) ( please->GimeDigit(fDigitsList[iDigitN]) ) ;
if ( AreNeighbours(digit, digitN) ) {
if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) {
// AddDigit(*digit) ;
// }
-// fAmp = Clu.GetTotalEnergy() ;
+// fAmp = Clu.GetEnergy() ;
// fGeom = Clu.GetGeom() ;
// TVector3 locpos;
// Clu.GetLocalPosition(locpos) ;
Float_t xi ;
Float_t zi ;
Int_t relid[4] ;
-
+
+ AliPHOSIndexToObject * please = AliPHOSIndexToObject::GetInstance() ;
+
for(iDigit=0; iDigit<fMulDigit; iDigit++) {
- digit = (AliPHOSDigit *) fDigitsList[iDigit];
+ digit = please->GimeDigit( fDigitsList[iDigit] ) ;
phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
phosgeom->RelPosInModule(relid, xi, zi);
cout << " Id = " << digit->GetId() ;
}
cout << " Multiplicity = " << fMulDigit << endl ;
cout << " Cluster Energy = " << fAmp << endl ;
-
+ cout << " Stored at position " << GetIndexInList() << endl ;
+
}
-
//______________________________________________________________________________
-void AliPHOSEmcRecPoint::Streamer(TBuffer &R__b)
-{
- // Stream an object of class AliPHOSEmcRecPoint.
- // Needed because of the array fEnergyList
-
- if (R__b.IsReading()) {
- Version_t R__v = R__b.ReadVersion(); if (R__v) { }
- AliPHOSRecPoint::Streamer(R__b);
- R__b >> fDelta;
- R__b >> fLocMaxCut;
- R__b.ReadArray(fEnergyList);
- R__b >> fW0;
- } else {
- R__b.WriteVersion(AliPHOSEmcRecPoint::IsA());
- AliPHOSRecPoint::Streamer(R__b);
- R__b << fDelta;
- R__b << fLocMaxCut;
- R__b.WriteArray(fEnergyList, GetMaximumDigitMultiplicity() );
- R__b << fW0;
- }
-}
-
-
+// void AliPHOSEmcRecPoint::Streamer(TBuffer &R__b)
+// {
+// // Stream an object of class AliPHOSEmcRecPoint.
+
+// if (R__b.IsReading()) {
+// Version_t R__v = R__b.ReadVersion(); if (R__v) { }
+// AliPHOSRecPoint::Streamer(R__b);
+// R__b >> fDelta;
+// fEnergyList = new Float_t[fMulDigit] ;
+// R__b.ReadFastArray(fEnergyList, fMulDigit);
+// R__b >> fLocMaxCut;
+// R__b >> fW0;
+// } else {
+// R__b.WriteVersion(AliPHOSEmcRecPoint::IsA());
+// AliPHOSRecPoint::Streamer(R__b);
+// R__b << fDelta;
+// R__b.WriteFastArray(fEnergyList, fMulDigit);
+// R__b << fLocMaxCut;
+// R__b << fW0;
+// }
+// }
+