// --- 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"
// Initializes the EMCAL parameters
fgInit = kFALSE; // Assume failer untill proven otherwise.
- if(!( (strcmp( fName, "EMCALArch1a" ) == 0) |
- (strcmp( fName, "EMCALArch1b" ) == 0) |
- (strcmp( fName, "EMCALArch2a" ) == 0) |
- (strcmp( fName, "EMCALArch2b" ) == 0) )){
- cout <<"Instance " << fName << " undefined" << endl;
+
+ TString name(GetName()) ;
+
+ if( name != "EMCALArch1a" &&
+ name != "EMCALArch1b" &&
+ name != "EMCALArch2a" &&
+ name != "EMCALArch2b" ){
+ Fatal("Init", "%s is not a known geometry (choose among EMCALArch1a, EMCALArch1b, EMCALArch2a and EMCALArch2b)", name.Data()) ;
} // end if
//
- if (((strcmp( fName, "EMCALArch1a" )) == 0) |
- ((strcmp( fName, "EMCALArch1b" )) == 0)){
+ if ( name == "EMCALArch1a" ||
+ name == "EMCALArch1b" ) {
fNZ = 96;
fNPhi = 144;
} // end if
- if (((strcmp( fName, "EMCALArch2a" )) == 0) |
- ((strcmp( fName, "EMCALArch2b" )) == 0)){
+ if ( name == "EMCALArch2a" ||
+ name, "EMCALArch2b" ) {
fNZ = 112;
fNPhi = 168;
} // end if
- if (((strcmp( fName, "EMCALArch1a" )) == 0) |
- ((strcmp( fName, "EMCALArch2a" )) == 0)){
+ if ( name == "EMCALArch1a" ||
+ name == "EMCALArch2a" ) {
fNLayers = 21;
} // end if
- if (((strcmp( fName, "EMCALArch1b" )) == 0) |
- ((strcmp( fName, "EMCALArch2b" )) == 0)){
+ if ( name == "EMCALArch1b" ||
+ name == "EMCALArch2b" ) {
fNLayers = 25;
} // end if
// preshower part of the calorimeter
fFullShowerSintThick = 0.5; // cm, Thickness of the sintilator for the
// full shower part of the calorimeter
- fArm1PhiMin = 0.0; // degrees, Starting EMCAL Phi position
- fArm1PhiMax = 120.0; // degrees, Ending EMCAL Phi position
+ 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
fIPDistance = 454.0; // cm, Radial distance to inner surface of EMCAL
fGap2Active = 1.0; // cm, Gap between
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 ieta,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.
if((ieta<=0 || ieta>GetNEta()) || (iphi<=0 || iphi>GetNPhi()) ||
(ipre<0 || ipre>1) ){
- cout << "inputs out of range ieta=" << ieta << " [1-" << GetNEta();
- 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()*(ieta-1) + ipre*(GetNPhi()*GetNEta());
return index;
}
+
//______________________________________________________________________
void AliEMCALGeometry::TowerIndexes(Int_t index,Int_t &ieta,Int_t &iphi,
- Int_t &ipre){
+ 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
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;
- ieta = -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
- ieta = 1+ (Int_t)(index/GetNPhi());
- iphi = index - GetNPhi()*(ieta-1) +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:
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
ieta = 1 + (Int_t)(((Float_t)GetNEta())*(eta-GetArm1EtaMin())/
(GetArm1EtaMax() - GetArm1EtaMin()));
if(ieta<=0 || ieta>GetNEta()){
- cout << "TowerIndexFromEtaPhi:";
- cout << "ieta = "<< ieta << " eta=" << eta << " is outside of EMCAL. etamin=";
- cout << GetArm1EtaMin() << " to etamax=" << GetArm1EtaMax();
- cout << " returning -1" << endl;
- return -1;
+ 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 = 1 + (Int_t)(((Float_t)GetNPhi())*(phi-GetArm1PhiMin())/
((Float_t)(GetArm1PhiMax() - GetArm1PhiMin())));
if(iphi<=0 || iphi>GetNPhi()){
- cout << "TowerIndexFromEtaPhi:";
- cout << "iphi=" << iphi << " phi=" << phi << " is outside of EMCAL.";
- 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(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
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
TowerIndexes(index,ieta,iphi,ipre);
relid[0] = 1;
relid[1] = 0;
- if(ipre==1) relid[1] = -1;
+ 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 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;
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) ;
+ cyl_radius = GetIPDistance()+ GetAirGap() ;
+ x = cyl_radius * TMath::Cos(phi * kDeg2Rad ) ;
+ y = cyl_radius * TMath::Cos(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:
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff