// --- ROOT system ---
// --- Standard library ---
-
-#include <iostream.h>
+#include <stdlib.h>
// --- AliRoot header files ---
#include <TMath.h>
+
// -- ALICE Headers.
#include "AliConst.h"
+
// --- EMCAL headers
#include "AliEMCALGeometry.h"
void AliEMCALGeometry::Init(void){
// Initializes the EMCAL parameters
- if(!( (strcmp( fName, "EMCALArch1a" ) == 0) |
- (strcmp( fName, "EMCALArch1b" ) == 0) |
- (strcmp( fName, "EMCALArch2a" ) == 0) |
- (strcmp( fName, "EMCALArch2b" ) == 0) )){
- fgInit = kFALSE;
- cout <<"Instance " << fName << " undefined" << endl;
- } // end if
- fgInit = kTRUE;
+ fgInit = kFALSE; // Assume failer untill proven otherwise.
- // geometry
- fAirGap = 5.0;
- fArm1PhiMin = 0.0;
- fArm1PhiMax = 120.0;
-
- fIPDistance = 454.0;
- fZLength = 817.0;
- fEnvelop[0] = fIPDistance;
- fEnvelop[2] = fZLength;
- fGap2Active = 1.0;
- fShellThickness = 3.18 + 1.2 + (double)((2*fNLayers -3)/2);
- fEnvelop[1] = fIPDistance + fShellThickness;
-
- if (((strcmp( fName, "EMCALArch1a" )) == 0) |
- ((strcmp( fName, "EMCALArch1b" )) == 0)){
- fNZ = 96;
- fNPhi = 144;
+ TString name(GetName()) ;
+
+ if( name != "EMCALArch1a" &&
+ name != "EMCALArch1b" &&
+ name != "EMCALArch2a" &&
+ name != "EMCALArch2b" &&
+ name != "EMCALArch1aN" ){
+ Fatal("Init", "%s is not a known geometry (choose among EMCALArch1a, EMCALArch1b, EMCALArch2a and EMCALArch2b, EMCALArch1aN)", name.Data()) ;
} // end if
- if (((strcmp( fName, "EMCALArch2a" )) == 0) |
- ((strcmp( fName, "EMCALArch2b" )) == 0)){
+ //
+ if ( name == "EMCALArch1a" ||
+ name == "EMCALArch1b" ||
+ name == "EMCALArch1aN") {
+ fNZ = 96;
+ fNPhi = 144;
+ } // end if
+ if ( name == "EMCALArch2a" ||
+ name == "EMCALArch2b" ) {
fNZ = 112;
fNPhi = 168;
} // end if
- if (((strcmp( fName, "EMCALArch1a" )) == 0) |
- ((strcmp( fName, "EMCALArch2a" )) == 0)){
- fNLayers = 21;
+ if ( name == "EMCALArch1a" ||
+ name == "EMCALArch2a" ) {
+ fNPRLayers = 2;
+ fNECLayers = 19;
+ fNHCLayers = 0;
} // end if
- if (((strcmp( fName, "EMCALArch1b" )) == 0) |
- ((strcmp( fName, "EMCALArch2b" )) == 0)){
- fNLayers = 25;
+ if ( name == "EMCALArch1b" ||
+ name == "EMCALArch2b" ) {
+ fNPRLayers = 2;
+ fNECLayers = 23;
+ fNHCLayers = 0;
} // end if
+ if ( name == "EMCALArch1aN") {
+ fNPRLayers = 2;
+ fNECLayers = 19;
+ fNHCLayers = 14;
+ }
+
+ // geometry
+ fArm1PhiMin = 60.0; // degrees, Starting EMCAL Phi position
+ fArm1PhiMax = 180.0; // degrees, Ending EMCAL Phi position
+ fArm1EtaMin = -0.7; // pseudorapidity, Starting EMCAL Eta position
+ fArm1EtaMax = +0.7; // pseudorapidity, Ending EMCAL Eta position
+
+ fAlFrontThick = 3.18; // cm, Thickness of front Al layer
+ fGap2Active = 1.0; // cm, Gap between Al and 1st Scintillator
+ fPbRadThickness = 0.5; // cm, Thickness of the Pb radiators.
+ fPreShowerSintThick = 0.6; // cm, Thickness of the sintilator for the preshower part of the calorimeter
+ fFullShowerSintThick = 0.5; // cm, Thickness of the sintilator for the dull shower part of the calorimeter
+ fCuRadThickness = 0.0; // cm, Thickness of the Cu radiators.
+
+ if (name == "EMCALArch1aN") {
+ fAlFrontThick = 3.0; // cm, Thickness of front Al layer
+ fGap2Active = 1.0; // cm, Gap between Al and 1st Scintillator
+ fPbRadThickness = 0.6; // cm, Thickness of the Pb radiators.
+ fPreShowerSintThick = 0.5; // cm, Thickness of the sintilator for the preshower part of the calorimeter
+ fFullShowerSintThick = 0.4; // cm, Thickness of the sintilator for the full shower part of the calorimeter
+ fCuRadThickness = 1.0; // cm, Thickness of the Cu radiators.
+ }
+
+ fIPDistance = 454.0; // cm, Radial distance to inner surface of EMCAL
+ fShellThickness = fAlFrontThick + fGap2Active + 2.*(GetPreSintThick() + GetPbRadThick()) + // pre shower
+ (fNECLayers-1)*(GetFullSintThick()+ GetPbRadThick()) + // E cal -1 because the last element is a scintillator
+ fNHCLayers*(GetFullSintThick()+ GetCuRadThick()) + // H cal
+ GetFullSintThick() ; // last scintillator
+ fZLength = 2.*ZFromEtaR(fIPDistance+fShellThickness,fArm1EtaMax); // Z coverage
+ fEnvelop[0] = fIPDistance; // mother volume inner radius
+ fEnvelop[1] = fIPDistance + fShellThickness; // mother volume outer r.
+ fEnvelop[2] = 1.00001*fZLength; // add some padding for mother volume.
+ fgInit = kTRUE;
}
+
//______________________________________________________________________
AliEMCALGeometry * AliEMCALGeometry::GetInstance(){
- // Returns the pointer of the unique instance
-
- return (AliEMCALGeometry *) fgGeom;
+ // Returns the pointer of the unique instance
+
+ return static_cast<AliEMCALGeometry *>( fgGeom ) ;
}
+
//______________________________________________________________________
AliEMCALGeometry* AliEMCALGeometry::GetInstance(const Text_t* name,
const Text_t* title){
} // end if strcmp(name,"")
}else{
if ( strcmp(fgGeom->GetName(), name) != 0 ) {
- cout << "AliEMCALGeometry <E> : current geometry is "
- << fgGeom->GetName() << endl
- << " you cannot call " << name
- << endl;
+ TString message("\n") ;
+ message += "current geometry is " ;
+ message += fgGeom->GetName() ;
+ message += "\n you cannot call " ;
+ message += name ;
+ ::Info("GetGeometry", message.Data() ) ;
}else{
- rv = (AliEMCALGeometry *) fgGeom;
+ rv = (AliEMCALGeometry *) fgGeom;
} // end if
} // end if fgGeom
return rv;
}
+
//______________________________________________________________________
-Int_t AliEMCALGeometry::TowerIndex(Int_t iz,Int_t iphi,Int_t ipre){
+Int_t AliEMCALGeometry::TowerIndex(Int_t ieta,Int_t iphi,Int_t ipre) const {
// Returns the tower index number from the based on the Z and Phi
// index numbers. There are 2 times the number of towers to separate
- // out the full towsers from the pre-towsers.
+ // out the full towers from the pre-showers.
// Inputs:
- // Int_t iz // index allong z axis [1-fNZ]
+ // Int_t ieta // index allong z axis [1-fNZ]
// Int_t iphi // index allong phi axis [1-fNPhi]
// Int_t ipre // 0 = Full tower, 1 = Pre-shower tower only. [0,1]
// Outputs:
// Int_t the absoulute tower index. [1-2*fNZ*fNPhi]
Int_t index;
- if((iz<=0 || iz>GetNZ()) || (iphi<=0 || iphi>GetNPhi()) ||
+ if((ieta<=0 || ieta>GetNEta()) || (iphi<=0 || iphi>GetNPhi()) ||
(ipre<0 || ipre>1) ){
- cout << "inputs out of range iz=" << iz << "[1-" << GetNZ();
- cout << "] iPhi=" << iphi << "[1-" << GetNPhi() << "] ipre=";
- cout << ipre << "[0,1]. returning -1" << endl;
- return -1;
+ TString message ("\n") ;
+ message += "inputs out of range ieta= " ;
+ message += ieta ;
+ message += " [1-" ;
+ message += GetNEta() ;
+ message += "] iphi= " ;
+ message += iphi ;
+ message += " [1-" ;
+ message += GetNPhi() ;
+ message += "] ipre= " ;
+ message += ipre ;
+ message += "[0,1]. returning -1" ;
+ Warning("TowerIndex", message.Data() ) ;
+ return -1;
} // end if
- index = iphi + GetNPhi()*(iz-1) + ipre*(GetNPhi()*GetNZ());
+ index = iphi + GetNPhi()*(ieta-1) + ipre*(GetNPhi()*GetNEta());
return index;
}
+
//______________________________________________________________________
-void AliEMCALGeometry::TowerIndexes(Int_t index,Int_t &iz,Int_t &iphi,
- Int_t &ipre){
+void AliEMCALGeometry::TowerIndexes(Int_t index,Int_t &ieta,Int_t &iphi,
+ Int_t &ipre) const {
// given the tower index number it returns the based on the Z and Phi
// index numbers and if it is for the full tower or the pre-tower number.
// There are 2 times the number of towers to separate
// Inputs:
// Int_t index // Tower index number [1-2*fNZ*fNPhi]
// Outputs:
- // Int_t iz // index allong z axis [1-fNZ]
+ // Int_t ieta // index allong z axis [1-fNZ]
// Int_t iphi // index allong phi axis [1-fNPhi]
// Int_t ipre // 0 = Full tower, 1 = Pre-shower tower only. [0,1]
// Returned
// none.
Int_t itowers;
- itowers = GetNZ()*GetNPhi();
+ itowers = GetNEta()*GetNPhi();
if(index<1 || index>2*itowers){
- cout << "index=" << index <<" is out of range [1-";
- cout << 2*itowers << "], returning -1 for all." << endl;
- iz = -1; iphi = -1; ipre = -1;
- return ;
+ TString message("\n") ;
+ message += "index= " ;
+ message += index ;
+ message += " is out of range [1-" ;
+ message += 2*itowers ;
+ message += "], returning -1 for all." ;
+ Warning("TowerIndex", message.Data() ) ;
+ ieta = -1; iphi = -1; ipre = -1;
+ return ;
} // end if
ipre = 0;
if(index>itowers){ // pre shower indexs
ipre = 1;
index = index - itowers;
} // end if
- iz = 1+ (Int_t)(index/GetNPhi());
- iphi = index - GetNPhi()*(iz-1);
+ ieta = 1+ (Int_t)((index-1)/GetNPhi());
+ iphi = index - GetNPhi()*(ieta-1);
return;
}
+
//______________________________________________________________________
-void AliEMCALGeometry::EtaPhiFromIndex(Int_t index,Float_t &eta,Float_t &phi){
+void AliEMCALGeometry::EtaPhiFromIndex(Int_t index,Float_t &eta,Float_t &phi) const {
// given the tower index number it returns the based on the eta and phi
// of the tower.
// Inputs:
// Float_t phi // phi of center of tower in degrees
// Returned
// none.
- Int_t iz,iphi,ipre;
- Double_t dz,dphi,zmax,z,phid,r;
-
- TowerIndexes(index,iz,iphi,ipre);
- zmax = (Double_t) GetZLength();
- dz = zmax/((Double_t)GetNZ());
- r = GetIPDistance();
- z = dz*((Double_t)iz - 0.5); // iz range [1-fNZ].
- eta = -TMath::Log(TMath::Tan(0.5*TMath::ATan2(r,z)));
- dphi = GetArm1PhiMax() - GetArm1PhiMin(); // in degrees.
- phid = GetArm1PhiMin() + dphi*((Double_t)iphi -0.5);//iphi range [1-fNphi].
+ Int_t ieta,iphi,ipre;
+ Double_t deta,dphi,phid;
+
+ TowerIndexes(index,ieta,iphi,ipre);
+ deta = (GetArm1EtaMax()-GetArm1EtaMin())/((Float_t)GetNEta());
+ eta = GetArm1EtaMin() + (((Float_t)ieta)-0.5)*deta;
+ dphi = (GetArm1PhiMax() - GetArm1PhiMin())/((Float_t)GetNPhi()); // in degrees.
+ phid = GetArm1PhiMin() + dphi*((Float_t)iphi -0.5);//iphi range [1-fNphi].
phi = phid;
}
+
//______________________________________________________________________
-Int_t AliEMCALGeometry::TowerIndexFromEtaPhi(Float_t eta,Float_t phi){
+Int_t AliEMCALGeometry::TowerIndexFromEtaPhi(Float_t eta,Float_t phi) const {
// returns the tower index number based on the eta and phi of the tower.
// Inputs:
// Float_t eta // eta of center of tower in pseudorapidity
// none.
// Returned
// Int_t index // Tower index number [1-fNZ*fNPhi]
- Int_t iz,iphi;
- Double_t z,zp,r,zl;
-
- r = GetIPDistance();
- z = 2.0*TMath::ATan(TMath::Exp(-eta));
- z = TMath::Tan(z);
- if(z!=0.0) z = r/z;
- else z = 0.0;
- zp = z;
- zl = GetZLength();
- z = 0.5*zl+z;
- iz = (Int_t)(((Double_t)GetNZ())*z/zl);
- if(iz<=0 || iz>GetNZ()){
- cout << "z=" << zp << " is outside of EMCAL. r=" << r << " eta =";
- cout << eta << " z length =" << zl ;
- cout << " returning -1" << endl;
- return -1;
+ Int_t ieta,iphi;
+
+ ieta = 1 + (Int_t)(((Float_t)GetNEta())*(eta-GetArm1EtaMin())/
+ (GetArm1EtaMax() - GetArm1EtaMin()));
+ if(ieta<=0 || ieta>GetNEta()){
+ TString message("\n") ;
+ message += "ieta = " ;
+ message += ieta ;
+ message += " eta=" ;
+ message += eta ;
+ message += " is outside of EMCAL. etamin=" ;
+ message += GetArm1EtaMin() ;
+ message += " to etamax=" ;
+ message += GetArm1EtaMax();
+ message += " returning -1";
+ Warning("TowerIndexFromEtaPhi", message.Data() ) ;
+ return -1;
} // end if
- iphi =(Int_t)(((Double_t)GetNPhi())*((Double_t)phi)/
- ((Double_t)(GetArm1PhiMax() - GetArm1PhiMin())));
+ iphi = 1 + (Int_t)(((Float_t)GetNPhi())*(phi-GetArm1PhiMin())/
+ ((Float_t)(GetArm1PhiMax() - GetArm1PhiMin())));
if(iphi<=0 || iphi>GetNPhi()){
- cout << "phi=" << phi << " is outside of EMCAL. r=" << r;
- cout << " Phimin=" << GetArm1PhiMin() << " PhiMax=" << GetArm1PhiMax();
- cout << " returning -1" << endl;
- return -1;
+ TString message("\n") ;
+ message += "iphi=" ;
+ message += iphi ;
+ message += "phi= " ;
+ message += phi ;
+ message += " is outside of EMCAL." ;
+ message += " Phimin=" ;
+ message += GetArm1PhiMin() ;
+ message += " PhiMax=" ;
+ message += GetArm1PhiMax() ;
+ message += " returning -1" ;
+ Warning("TowerIndexFromEtaPhi", message.Data() ) ;
+ return -1;
} // end if
- return TowerIndex(iz,iphi,0);
+ return TowerIndex(ieta,iphi,0);
}
+
//______________________________________________________________________
-Int_t AliEMCALGeometry::PreTowerIndexFromEtaPhi(Float_t eta,Float_t phi){
+Int_t AliEMCALGeometry::PreTowerIndexFromEtaPhi(Float_t eta,Float_t phi) const {
// returns the pretower index number based on the eta and phi of the tower.
// Inputs:
// Float_t eta // eta of center of tower in pseudorapidity
// Returned
// Int_t index // PreTower index number [fNZ*fNPhi-2*fNZ*fNPhi]
- return GetNZ()*GetNPhi()+TowerIndexFromEtaPhi(eta,phi);
+ return GetNEta()*GetNPhi()+TowerIndexFromEtaPhi(eta,phi);
}
+
//______________________________________________________________________
-Bool_t AliEMCALGeometry::AbsToRelNumbering(Int_t AbsId, Int_t *relid){
+Bool_t AliEMCALGeometry::AbsToRelNumbering(Int_t AbsId, Int_t *relid) const {
// Converts the absolute numbering into the following array/
- // relid[0] = EMCAL Module number 1:1 (EMCAL arm number)
+ // relid[0] = EMCAL Arm number 1:1
// relid[1] = 0 Not in Pre Shower layers
// = -1 In Pre Shower
// relid[2] = Row number inside EMCAL
// Outputs:
// Int_t *relid // array of 5. Discribed above.
Bool_t rv = kTRUE ;
- Int_t iz=0,iphi=0,ipre=0,index=AbsId;
+ Int_t ieta=0,iphi=0,ipre=0,index=AbsId;
- TowerIndexes(index,iz,iphi,ipre);
+ TowerIndexes(index,ieta,iphi,ipre);
relid[0] = 1;
relid[1] = 0;
- if(ipre==1) relid[1] = -1;
- relid[2] = iz;
+ if(ipre==1)
+ relid[1] = -1;
+ relid[2] = ieta;
relid[3] = iphi;
return rv;
}
+
//______________________________________________________________________
-void AliEMCALGeometry::RelPosInModule(const Int_t *relid,Float_t &theta,
- Float_t &phi){
- // Converts the relative numbering into the local PHOS-module (x, z)
+void AliEMCALGeometry::PosInAlice(const Int_t *relid,Float_t &theta,
+ Float_t &phi) const {
+ // Converts the relative numbering into the local EMCAL-module (x, z)
// coordinates
- Int_t iz = relid[2]; // offset along x axis
+ Int_t ieta = relid[2]; // offset along x axis
Int_t iphi = relid[3]; // offset along z axis
- Int_t ipre = relid[1]; // indecates -1 preshower, or 0 full tower.
+ Int_t ipre = relid[1]; // indicates -1 preshower, or 0 full tower.
Int_t index;
Float_t eta;
if(ipre==-1) ipre = 1;
- index = TowerIndex(iz,iphi,ipre);
+ index = TowerIndex(ieta,iphi,ipre);
EtaPhiFromIndex(index,eta,phi);
theta = 180.*(2.0*TMath::ATan(TMath::Exp(-eta)))/TMath::Pi();
return;
}
+
+//______________________________________________________________________
+void AliEMCALGeometry::XYZFromIndex(const Int_t *relid,Float_t &x,Float_t &y, Float_t &z) const {
+ // given the tower relative number it returns the X, Y and Z
+ // of the tower.
+
+ // Outputs:
+ // Float_t x // x of center of tower in cm
+ // Float_t y // y of center of tower in cm
+ // Float_t z // z of centre of tower in cm
+ // Returned
+ // none.
+
+ Float_t eta,theta, phi,cyl_radius,kDeg2Rad;
+
+ Int_t ieta = relid[2]; // offset along x axis
+ Int_t iphi = relid[3]; // offset along z axis
+ Int_t ipre = relid[1]; // indicates -1 preshower, or 0 full tower.
+ Int_t index;
+
+
+ if(ipre==-1) ipre = 1;
+ index = TowerIndex(ieta,iphi,ipre);
+ EtaPhiFromIndex(index,eta,phi);
+ theta = 180.*(2.0*TMath::ATan(TMath::Exp(-eta)))/TMath::Pi();
+
+ kDeg2Rad = TMath::Pi() / static_cast<Double_t>(180) ;
+ if ( ipre == -1 )
+ cyl_radius = GetIP2PreShower() ;
+ else
+ cyl_radius = GetIP2Tower() ;
+
+ x = cyl_radius * TMath::Cos(phi * kDeg2Rad ) ;
+ y = cyl_radius * TMath::Sin(phi * kDeg2Rad ) ;
+ z = cyl_radius / TMath::Tan(theta * kDeg2Rad ) ;
+
+ return;
+}
+
//______________________________________________________________________
/*
-Boot_t AliEMCALGeometry::AreNeighbours(Int_t index1,Int_t index2){
+Boot_t AliEMCALGeometry::AreNeighbours(Int_t index1,Int_t index2) const {
// Returns kTRUE if the two towers are neighbours or not, including
// diagonals. Both indexes are required to be either towers or preshower.
// Inputs:
// Returned
// Boot_t kTRUE if the towers are neighbours otherwise false.
Boot_t anb = kFALSE;
- Int_t iz1 = 0, iz2 = 0, iphi1 = 0, iphi2 = 0, ipre1 = 0, ipre2 = 0;
+ Int_t ieta1 = 0, ieta2 = 0, iphi1 = 0, iphi2 = 0, ipre1 = 0, ipre2 = 0;
- TowerIndexes(index1,iz1,iphi1,ipre1);
- TowerIndexes(index2,iz2,iphi2,ipre2);
+ TowerIndexes(index1,ieta1,iphi1,ipre1);
+ TowerIndexes(index2,ieta2,iphi2,ipre2);
if(ipre1!=ipre2) return anb;
- if((iz1>=iz2-1 && iz1<=iz2+1) && (iphi1>=iphi2-1 && iphi1<=iphi2+1))
+ if((ieta1>=ieta2-1 && ieta1<=ieta2+1) && (iphi1>=iphi2-1 &&iphi1<=iphi2+1))
anb = kTRUE;
return anb;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff