* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+
//_________________________________________________________________________
-// Geometry class for PHOS version SUBATECH
-//*-- Author : Y. Schutz SUBATECH
-//////////////////////////////////////////////////////////////////////////////
+// Geometry class for PHOS : singleton
+// The EMC modules are parametrized so that any configuration can be easily implemented
+// The title is used to identify the type of CPV used. So far only PPSD implemented
+//
+//*-- Author: Yves Schutz (SUBATECH)
// --- ROOT system ---
// --- Standard library ---
-#include <iostream>
-#include <cassert>
+#include <iostream.h>
// --- AliRoot header files ---
#include "AliPHOSPpsdRecPoint.h"
#include "AliConst.h"
-ClassImp(AliPHOSGeometry)
+ClassImp(AliPHOSGeometry) ;
+
+AliPHOSGeometry * AliPHOSGeometry::fgGeom = 0 ;
- AliPHOSGeometry * AliPHOSGeometry::fGeom = 0 ;
+const TString AliPHOSGeometry::kDegre = "deg" ;
+const TString AliPHOSGeometry::kRadian = "rad" ;
//____________________________________________________________________________
AliPHOSGeometry::~AliPHOSGeometry(void)
{
+ // dtor
+
fRotMatrixArray->Delete() ;
delete fRotMatrixArray ;
+
+ delete fPHOSAngle ;
}
//____________________________________________________________________________
-Bool_t AliPHOSGeometry::AbsToRelNumbering(const Int_t AbsId, Int_t * RelId)
+Bool_t AliPHOSGeometry::AbsToRelNumbering(const Int_t AbsId, Int_t * relid)
{
- // RelId[0] = PHOS Module number 1:fNModules
- // RelId[1] = 0 if PbW04
- // = PPSD Module number 1:fNumberOfModulesPhi*fNumberOfModulesZ*2 (2->up and bottom level)
- // RelId[2] = Row number inside a PHOS or PPSD module
- // RelId[3] = Column number inside a PHOS or PPSD module
+ // Converts the absolute numbering into the following array/
+ // relid[0] = PHOS Module number 1:fNModules
+ // relid[1] = 0 if PbW04
+ // = PPSD Module number 1:fNumberOfModulesPhi*fNumberOfModulesZ*2 (2->up and bottom level)
+ // relid[2] = Row number inside a PHOS or PPSD module
+ // relid[3] = Column number inside a PHOS or PPSD module
Bool_t rv = kTRUE ;
- Float_t Id = AbsId ;
+ Float_t id = AbsId ;
- Int_t PHOSModuleNumber = (Int_t)TMath:: Ceil( Id / ( GetNPhi() * GetNZ() ) ) ;
+ Int_t phosmodulenumber = (Int_t)TMath:: Ceil( id / ( GetNPhi() * GetNZ() ) ) ;
- if ( PHOSModuleNumber > GetNModules() ) { // its a PPSD pad
+ if ( phosmodulenumber > GetNModules() ) { // its a PPSD pad
- Id -= GetNPhi() * GetNZ() * GetNModules() ;
+ id -= GetNPhi() * GetNZ() * GetNModules() ;
Float_t tempo = 2 * GetNumberOfModulesPhi() * GetNumberOfModulesZ() * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
- RelId[0] = (Int_t)TMath::Ceil( Id / tempo ) ;
- Id -= ( RelId[0] - 1 ) * tempo ;
- RelId[1] = (Int_t)TMath::Ceil( Id / ( GetNumberOfPadsPhi() * GetNumberOfPadsZ() ) ) ;
- Id -= ( RelId[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
- RelId[2] = (Int_t)TMath::Ceil( Id / GetNumberOfPadsPhi() ) ;
- RelId[3] = (Int_t) ( Id - ( RelId[2] - 1 ) * GetNumberOfPadsPhi() ) ;
+ relid[0] = (Int_t)TMath::Ceil( id / tempo ) ;
+ id -= ( relid[0] - 1 ) * tempo ;
+ relid[1] = (Int_t)TMath::Ceil( id / ( GetNumberOfPadsPhi() * GetNumberOfPadsZ() ) ) ;
+ id -= ( relid[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
+ relid[2] = (Int_t)TMath::Ceil( id / GetNumberOfPadsPhi() ) ;
+ relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * GetNumberOfPadsPhi() ) ;
}
else { // its a PW04 crystal
- RelId[0] = PHOSModuleNumber ;
- RelId[1] = 0 ;
- Id -= ( PHOSModuleNumber - 1 ) * GetNPhi() * GetNZ() ;
- RelId[2] = (Int_t)TMath::Ceil( Id / GetNPhi() ) ;
- RelId[3] = (Int_t)( Id - ( RelId[2] - 1 ) * GetNPhi() ) ;
+ relid[0] = phosmodulenumber ;
+ relid[1] = 0 ;
+ id -= ( phosmodulenumber - 1 ) * GetNPhi() * GetNZ() ;
+ relid[2] = (Int_t)TMath::Ceil( id / GetNPhi() ) ;
+ relid[3] = (Int_t)( id - ( relid[2] - 1 ) * GetNPhi() ) ;
}
return rv ;
}
}
Float_t phi = GetPHOSAngle(mod) * (TMath::Pi() / 180.) ;
- Float_t Y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
- Double_t angle = TMath::ATan( GetCrystalSize(0)*GetNPhi() / (2 * Y0) ) ;
+ Double_t angle = TMath::ATan( GetCrystalSize(0)*GetNPhi() / (2 * y0) ) ;
phi = phi + 1.5 * TMath::Pi() ; // to follow the convention of the particle generator(PHOS is between 230 and 310 deg.)
- Double_t m = phi - angle ;
- Double_t M = phi + angle ;
- pM = TMath::Max(M, m) * conv ;
- pm = TMath::Min(M, m) * conv ;
+ Double_t max = phi - angle ;
+ Double_t min = phi + angle ;
+ pM = TMath::Max(max, min) * conv ;
+ pm = TMath::Min(max, min) * conv ;
- angle = TMath::ATan( GetCrystalSize(2)*GetNZ() / (2 * Y0) ) ;
- M = TMath::Pi() / 2. + angle ; // to follow the convention of the particle generator(PHOS is at 90 deg.)
- m = TMath::Pi() / 2. - angle ;
- tM = TMath::Max(M, m) * conv ;
- tm = TMath::Min(M, m) * conv ;
+ angle = TMath::ATan( GetCrystalSize(2)*GetNZ() / (2 * y0) ) ;
+ max = TMath::Pi() / 2. + angle ; // to follow the convention of the particle generator(PHOS is at 90 deg.)
+ min = TMath::Pi() / 2. - angle ;
+ tM = TMath::Max(max, min) * conv ;
+ tm = TMath::Min(max, min) * conv ;
}
conv = 1. ;
}
- Float_t Y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
- theta = 2 * TMath::ATan( GetCrystalSize(2) / (2 * Y0) ) * conv ;
- phi = 2 * TMath::ATan( GetCrystalSize(0) / (2 * Y0) ) * conv ;
+ theta = 2 * TMath::ATan( GetCrystalSize(2) / (2 * y0) ) * conv ;
+ phi = 2 * TMath::ATan( GetCrystalSize(0) / (2 * y0) ) * conv ;
}
}
if ( ModuleNumber != 0 ) {
Float_t phi0 = GetPHOSAngle(ModuleNumber) * (TMath::Pi() / 180.) + 1.5 * TMath::Pi() ;
- Float_t Y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
Double_t angle = phi - phi0;
- x = Y0 * TMath::Tan(angle) ;
+ x = y0 * TMath::Tan(angle) ;
angle = theta - TMath::Pi() / 2 ;
- z = Y0 * TMath::Tan(angle) ;
+ z = y0 * TMath::Tan(angle) ;
}
}
//____________________________________________________________________________
void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & gmat)
{
-
+ // Calculates the ALICE global coordinates of a RecPoint and the error matrix
+
AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
- TVector3 LocalPosition ;
+ TVector3 localposition ;
tmpPHOS->GetLocalPosition(gpos) ;
gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
}
- Float_t Phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const RADDEG = 180.0 / kPI ;
- Float_t rPhi = Phi / RADDEG ;
+ Float_t phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
+ Double_t const kRADDEG = 180.0 / kPI ;
+ Float_t rphi = phi / kRADDEG ;
- TRotation Rot ;
- Rot.RotateZ(-rPhi) ; // a rotation around Z by angle
+ TRotation rot ;
+ rot.RotateZ(-rphi) ; // a rotation around Z by angle
- TRotation dummy = Rot.Invert() ; // to transform from original frame to rotate frame
- gpos.Transform(Rot) ; // rotate the baby
+ TRotation dummy = rot.Invert() ; // to transform from original frame to rotate frame
+ gpos.Transform(rot) ; // rotate the baby
}
//____________________________________________________________________________
void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos)
{
+ // Calculates the ALICE global coordinates of a RecPoint
+
AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
- TVector3 LocalPosition ;
+ TVector3 localposition ;
tmpPHOS->GetLocalPosition(gpos) ;
gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
}
- Float_t Phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const RADDEG = 180.0 / kPI ;
- Float_t rPhi = Phi / RADDEG ;
+ Float_t phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
+ Double_t const kRADDEG = 180.0 / kPI ;
+ Float_t rphi = phi / kRADDEG ;
- TRotation Rot ;
- Rot.RotateZ(-rPhi) ; // a rotation around Z by angle
+ TRotation rot ;
+ rot.RotateZ(-rphi) ; // a rotation around Z by angle
- TRotation dummy = Rot.Invert() ; // to transform from original frame to rotate frame
- gpos.Transform(Rot) ; // rotate the baby
+ TRotation dummy = rot.Invert() ; // to transform from original frame to rotate frame
+ gpos.Transform(rot) ; // rotate the baby
}
//____________________________________________________________________________
void AliPHOSGeometry::Init(void)
{
+ // Initializes the PHOS parameters
+
fRotMatrixArray = new TObjArray(fNModules) ;
cout << "PHOS geometry setup: parameters for option " << fName << " " << fTitle << endl ;
//____________________________________________________________________________
void AliPHOSGeometry::InitPHOS(void)
{
- // PHOS
+ // Initializes the EMC parameters
fNPhi = 64 ;
fNZ = 64 ;
fNModules = 5 ;
+
+ fPHOSAngle = new Float_t[fNModules] ;
+ Int_t index ;
+ for ( index = 0; index < fNModules; index++ )
+ fPHOSAngle[index] = 0.0 ; // Module position angles are set in CreateGeometry()
- fPHOSAngle[0] = 0.0 ; // Module position angles are set in CreateGeometry()
- fPHOSAngle[1] = 0.0 ;
- fPHOSAngle[2] = 0.0 ;
- fPHOSAngle[3] = 0.0 ;
-
fXtlSize[0] = 2.2 ;
fXtlSize[1] = 18.0 ;
fXtlSize[2] = 2.2 ;
fIPtoOuterCoverDistance = 447.0 ;
fIPtoCrystalSurface = 460.0 ;
- fPinDiodeSize[0] = 1.0 ;
- fPinDiodeSize[1] = 0.1 ;
- fPinDiodeSize[2] = 1.0 ;
+ fPinDiodeSize[0] = 1.71 ; //Values given by Odd Harald feb 2000
+ fPinDiodeSize[1] = 0.0280 ; // 0.0280 is the depth of active layer in the silicon
+ fPinDiodeSize[2] = 1.61 ;
fUpperCoolingPlateThickness = 0.06 ;
fSupportPlateThickness = 10.0 ;
fAirThickness[1] = 20.5175 ;
fAirThickness[2] = 2.48 ;
- Float_t XtalModulePhiSize = fNPhi * ( fXtlSize[0] + 2 * fGapBetweenCrystals ) ;
- Float_t XtalModuleZSize = fNZ * ( fXtlSize[2] + 2 * fGapBetweenCrystals ) ;
+ Float_t xtalModulePhiSize = fNPhi * ( fXtlSize[0] + 2 * fGapBetweenCrystals ) ;
+ Float_t xtalModuleZSize = fNZ * ( fXtlSize[2] + 2 * fGapBetweenCrystals ) ;
// The next dimensions are calculated from the above parameters
- fOuterBoxSize[0] = XtalModulePhiSize + 2 * ( fAirThickness[0] + fModuleBoxThickness
+ fOuterBoxSize[0] = xtalModulePhiSize + 2 * ( fAirThickness[0] + fModuleBoxThickness
+ fTextolitBoxThickness[0] + fOuterBoxThickness[0] ) ;
fOuterBoxSize[1] = ( fXtlSize[1] + fCrystalSupportHeight + fCrystalWrapThickness + fCrystalHolderThickness )
+ 2 * (fAirThickness[1] + fModuleBoxThickness + fTextolitBoxThickness[1] + fOuterBoxThickness[1] ) ;
- fOuterBoxSize[2] = XtalModuleZSize + 2 * ( fAirThickness[2] + fModuleBoxThickness
+ fOuterBoxSize[2] = xtalModuleZSize + 2 * ( fAirThickness[2] + fModuleBoxThickness
+ fTextolitBoxThickness[2] + fOuterBoxThickness[2] ) ;
fTextolitBoxSize[0] = fOuterBoxSize[0] - 2 * fOuterBoxThickness[0] ;
//____________________________________________________________________________
void AliPHOSGeometry::InitPPSD(void)
{
- // PPSD
+ // Initializes the PPSD parameters
fAnodeThickness = 0.0009 ;
fAvalancheGap = 0.01 ;
//____________________________________________________________________________
AliPHOSGeometry * AliPHOSGeometry::GetInstance()
{
- return (AliPHOSGeometry *) fGeom ;
+ // Returns the pointer of the unique instance
+
+ return (AliPHOSGeometry *) fgGeom ;
}
//____________________________________________________________________________
AliPHOSGeometry * AliPHOSGeometry::GetInstance(const Text_t* name, const Text_t* title)
{
+ // Returns the pointer of the unique instance
+
AliPHOSGeometry * rv = 0 ;
- if ( fGeom == 0 ) {
- fGeom = new AliPHOSGeometry(name, title) ;
- rv = (AliPHOSGeometry * ) fGeom ;
+ if ( fgGeom == 0 ) {
+ fgGeom = new AliPHOSGeometry(name, title) ;
+ rv = (AliPHOSGeometry * ) fgGeom ;
}
else {
- if ( strcmp(fGeom->GetName(), name) != 0 ) {
- cout << "AliPHOSGeometry <E> : current geometry is " << fGeom->GetName() << endl
+ if ( strcmp(fgGeom->GetName(), name) != 0 ) {
+ cout << "AliPHOSGeometry <E> : current geometry is " << fgGeom->GetName() << endl
<< " you cannot call " << name << endl ;
}
else
- rv = (AliPHOSGeometry *) fGeom ;
+ rv = (AliPHOSGeometry *) fgGeom ;
}
return rv ;
}
//____________________________________________________________________________
-Bool_t AliPHOSGeometry::RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId)
+Bool_t AliPHOSGeometry::RelToAbsNumbering(const Int_t * relid, Int_t & AbsId)
{
-
- // AbsId = 1:fNModules * fNPhi * fNZ -> PbWO4
- // AbsId = 1:fNModules * 2 * (fNumberOfModulesPhi * fNumberOfModulesZ) * fNumberOfPadsPhi * fNumberOfPadsZ -> PPSD
+ // Converts the relative numbering into the absolute numbering
+ // AbsId = 1:fNModules * fNPhi * fNZ -> PbWO4
+ // AbsId = 1:fNModules * 2 * (fNumberOfModulesPhi * fNumberOfModulesZ) * fNumberOfPadsPhi * fNumberOfPadsZ -> PPSD
Bool_t rv = kTRUE ;
- if ( RelId[1] > 0 ) { // its a PPSD pad
+ if ( relid[1] > 0 ) { // its a PPSD pad
AbsId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate emcal crystals from PPSD pads
- + ( RelId[0] - 1 ) * GetNumberOfModulesPhi() * GetNumberOfModulesZ() // the pads offset of PHOS modules
+ + ( relid[0] - 1 ) * GetNumberOfModulesPhi() * GetNumberOfModulesZ() // the pads offset of PHOS modules
* GetNumberOfPadsPhi() * GetNumberOfPadsZ() * 2
- + ( RelId[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() // the pads offset of PPSD modules
- + ( RelId[2] - 1 ) * GetNumberOfPadsPhi() // the pads offset of a PPSD row
- + RelId[3] ; // the column number
+ + ( relid[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() // the pads offset of PPSD modules
+ + ( relid[2] - 1 ) * GetNumberOfPadsPhi() // the pads offset of a PPSD row
+ + relid[3] ; // the column number
}
else {
- if ( RelId[1] == 0 ) { // its a Phos crystal
- AbsId = ( RelId[0] - 1 ) * GetNPhi() * GetNZ() // the offset of PHOS modules
- + ( RelId[2] - 1 ) * GetNPhi() // the offset of a xtal row
- + RelId[3] ; // the column number
+ if ( relid[1] == 0 ) { // its a Phos crystal
+ AbsId = ( relid[0] - 1 ) * GetNPhi() * GetNZ() // the offset of PHOS modules
+ + ( relid[2] - 1 ) * GetNPhi() // the offset of a xtal row
+ + relid[3] ; // the column number
}
}
//____________________________________________________________________________
-void AliPHOSGeometry::RelPosInAlice(const Int_t Id, TVector3 & pos )
+void AliPHOSGeometry::RelPosInAlice(const Int_t id, TVector3 & pos )
{
- if (Id > 0) {
+ // Converts the absolute numbering into the global ALICE coordinates
+
+ if (id > 0) {
- Int_t RelId[4] ;
+ Int_t relid[4] ;
- AbsToRelNumbering(Id , RelId) ;
+ AbsToRelNumbering(id , relid) ;
- Int_t PHOSModule = RelId[0] ;
+ Int_t phosmodule = relid[0] ;
- Float_t Y0 ;
+ Float_t y0 = 0 ;
- if ( RelId[1] == 0 ) // it is a PbW04 crystal
- { Y0 = -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ if ( relid[1] == 0 ) // it is a PbW04 crystal
+ { y0 = -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ;
}
- if ( RelId[1] > 0 ) { // its a PPSD pad
- if ( RelId[1] > GetNumberOfModulesPhi() * GetNumberOfModulesZ() ) // its an bottom module
+ if ( relid[1] > 0 ) { // its a PPSD pad
+ if ( relid[1] > GetNumberOfModulesPhi() * GetNumberOfModulesZ() ) // its an bottom module
{
- Y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ;
+ y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ;
}
else // its an upper module
- Y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() - GetLeadToMicro2Gap()
+ y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() - GetLeadToMicro2Gap()
- GetLeadConverterThickness() - GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0) ;
}
Float_t x, z ;
- RelPosInModule(RelId, x, z) ;
+ RelPosInModule(relid, x, z) ;
pos.SetX(x) ;
pos.SetZ(z) ;
- pos.SetY( TMath::Sqrt(x*x + z*z + Y0*Y0) ) ;
+ pos.SetY( TMath::Sqrt(x*x + z*z + y0*y0) ) ;
- Float_t Phi = GetPHOSAngle( PHOSModule) ;
- Double_t const RADDEG = 180.0 / kPI ;
- Float_t rPhi = Phi / RADDEG ;
+ Float_t phi = GetPHOSAngle( phosmodule) ;
+ Double_t const kRADDEG = 180.0 / kPI ;
+ Float_t rphi = phi / kRADDEG ;
- TRotation Rot ;
- Rot.RotateZ(-rPhi) ; // a rotation around Z by angle
+ TRotation rot ;
+ rot.RotateZ(-rphi) ; // a rotation around Z by angle
- TRotation dummy = Rot.Invert() ; // to transform from original frame to rotate frame
+ TRotation dummy = rot.Invert() ; // to transform from original frame to rotate frame
- pos.Transform(Rot) ; // rotate the baby
+ pos.Transform(rot) ; // rotate the baby
}
else {
pos.SetX(0.);
}
//____________________________________________________________________________
-void AliPHOSGeometry::RelPosInModule(const Int_t * RelId, Float_t & x, Float_t & z)
+void AliPHOSGeometry::RelPosInModule(const Int_t * relid, Float_t & x, Float_t & z)
{
- Int_t PPSDModule ;
- Int_t Row = RelId[2] ; //offset along z axiz
- Int_t Column = RelId[3] ; //offset along x axiz
+ // Converts the relative numbering into the local PHOS-module (x, z) coordinates
+
+ Int_t ppsdmodule ;
+ Int_t row = relid[2] ; //offset along z axiz
+ Int_t column = relid[3] ; //offset along x axiz
- Float_t PadSizeZ = GetPPSDModuleSize(2)/ GetNumberOfPadsZ();
- Float_t PadSizeX = GetPPSDModuleSize(0)/ GetNumberOfPadsPhi();
+ Float_t padsizeZ = GetPPSDModuleSize(2)/ GetNumberOfPadsZ();
+ Float_t padsizeX = GetPPSDModuleSize(0)/ GetNumberOfPadsPhi();
- if ( RelId[1] == 0 ) { // its a PbW04 crystal
- x = -( GetNPhi()/2. - Row + 0.5 ) * GetCrystalSize(0) ; // position ox Xtal with respect
- z = ( GetNZ() /2. - Column + 0.5 ) * GetCrystalSize(2) ; // of center of PHOS module
+ if ( relid[1] == 0 ) { // its a PbW04 crystal
+ x = -( GetNPhi()/2. - row + 0.5 ) * GetCrystalSize(0) ; // position ox Xtal with respect
+ z = ( GetNZ() /2. - column + 0.5 ) * GetCrystalSize(2) ; // of center of PHOS module
}
else {
- if ( RelId[1] > GetNumberOfModulesPhi() * GetNumberOfModulesZ() )
- PPSDModule = RelId[1]-GetNumberOfModulesPhi() * GetNumberOfModulesZ();
- else PPSDModule = RelId[1] ;
- Int_t ModRow = 1+(Int_t)TMath::Ceil( (Float_t)PPSDModule / GetNumberOfModulesPhi()-1. ) ;
- Int_t ModCol = PPSDModule - ( ModRow-1 ) * GetNumberOfModulesPhi() ;
- Float_t x0 = ( GetNumberOfModulesPhi() / 2. - ModRow + 0.5 ) * GetPPSDModuleSize(0) ;
- Float_t z0 = ( GetNumberOfModulesZ() / 2. - ModCol + 0.5 ) * GetPPSDModuleSize(2) ;
- x = - ( GetNumberOfPadsPhi()/2. - Row - 0.5 ) * PadSizeX + x0 ; // position of pad with respect
- z = ( GetNumberOfPadsZ()/2. - Column - 0.5 ) * PadSizeZ - z0 ; // of center of PHOS module
+ if ( relid[1] > GetNumberOfModulesPhi() * GetNumberOfModulesZ() )
+ ppsdmodule = relid[1]-GetNumberOfModulesPhi() * GetNumberOfModulesZ();
+ else ppsdmodule = relid[1] ;
+ Int_t modrow = 1+(Int_t)TMath::Ceil( (Float_t)ppsdmodule / GetNumberOfModulesPhi()-1. ) ;
+ Int_t modcol = ppsdmodule - ( modrow - 1 ) * GetNumberOfModulesPhi() ;
+ Float_t x0 = ( GetNumberOfModulesPhi() / 2. - modrow + 0.5 ) * GetPPSDModuleSize(0) ;
+ Float_t z0 = ( GetNumberOfModulesZ() / 2. - modcol + 0.5 ) * GetPPSDModuleSize(2) ;
+ x = - ( GetNumberOfPadsPhi()/2. - row - 0.5 ) * padsizeX + x0 ; // position of pad with respect
+ z = ( GetNumberOfPadsZ()/2. - column - 0.5 ) * padsizeZ - z0 ; // of center of PHOS module
}
}
//____________________________________________________________________________
-void AliPHOSGeometry:: SetPHOSAngles()
+void AliPHOSGeometry::SetPHOSAngles()
{
- Double_t const RADDEG = 180.0 / kPI ;
- Float_t PPHI = TMath::ATan( fOuterBoxSize[0] / ( 2.0 * fIPtoOuterCoverDistance ) ) ;
- PPHI *= RADDEG ;
+ // Calculates the position in ALICE of the PHOS modules
+
+ Double_t const kRADDEG = 180.0 / kPI ;
+ Float_t pphi = TMath::ATan( fOuterBoxSize[0] / ( 2.0 * fIPtoOuterCoverDistance ) ) ;
+ pphi *= kRADDEG ;
for( Int_t i = 1; i <= fNModules ; i++ ) {
- Float_t angle = PPHI * 2 * ( i - fNModules / 2.0 - 0.5 ) ;
+ Float_t angle = pphi * 2 * ( i - fNModules / 2.0 - 0.5 ) ;
fPHOSAngle[i-1] = - angle ;
- }
+ }
}
+//____________________________________________________________________________
+void AliPHOSGeometry::SetLeadConverterThickness(Float_t e)
+{
+ // should ultimately disappear
+
+ cout << " AliPHOSGeometry WARNING : You have changed LeadConverterThickness from "
+ << fLeadConverterThickness << " to " << e << endl ;
+
+ fLeadConverterThickness = e ;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff