* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+
//_________________________________________________________________________
-// Geometry class for PHOS version SUBATECH
-//*-- Author : Y. Schutz SUBATECH
-//////////////////////////////////////////////////////////////////////////////
+// Geometry class for PHOS : singleton
+// PHOS consists of the electromagnetic calorimeter (EMCA)
+// and a charged particle veto either in the Subatech's version (PPSD)
+// or in the IHEP's one (CPV).
+// The EMCA/PPSD/CPV modules are parametrized so that any configuration
+// can be easily implemented
+// The title is used to identify the version of CPV used.
+//
+//*-- 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::fGeom = 0 ;
+AliPHOSGeometry * AliPHOSGeometry::fgGeom = 0 ;
+Bool_t AliPHOSGeometry::fgInit = kFALSE ;
//____________________________________________________________________________
AliPHOSGeometry::~AliPHOSGeometry(void)
{
- fRotMatrixArray->Delete() ;
- delete fRotMatrixArray ;
+ // dtor
+
+ if (fRotMatrixArray) fRotMatrixArray->Delete() ;
+ if (fRotMatrixArray) delete fRotMatrixArray ;
+ if (fPHOSAngle ) delete fPHOSAngle ;
+}
+
+//____________________________________________________________________________
+
+void AliPHOSGeometry::Init(void)
+{
+ // Initializes the PHOS parameters
+
+ if ( ((strcmp( fName, "default" )) == 0) ||
+ ((strcmp( fName, "GPS2" )) == 0) ||
+ ((strcmp( fName, "IHEP" )) == 0) ||
+ ((strcmp( fName, "MIXT" )) == 0) ) {
+ fgInit = kTRUE ;
+
+ fNModules = 5;
+ fNPPSDModules = 0;
+ fAngle = 20;
+
+ fGeometryEMCA = new AliPHOSEMCAGeometry();
+ if ( ((strcmp( fName, "GPS2" )) == 0) ) {
+ fGeometryPPSD = new AliPHOSPPSDGeometry();
+ fGeometryCPV = 0;
+ fNPPSDModules = fNModules;
+ }
+ else if ( ((strcmp( fName, "IHEP" )) == 0) ) {
+ fGeometryCPV = new AliPHOSCPVGeometry ();
+ fGeometryPPSD = 0;
+ fNPPSDModules = 0;
+ }
+ else if ( ((strcmp( fName, "MIXT" )) == 0) ) {
+ fGeometryCPV = new AliPHOSCPVGeometry ();
+ fGeometryPPSD = new AliPHOSPPSDGeometry();
+ fNPPSDModules = 1;
+ }
+ fGeometrySUPP = new AliPHOSSupportGeometry();
+
+ 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()
+
+ this->SetPHOSAngles() ;
+ fRotMatrixArray = new TObjArray(fNModules) ;
+ }
+ else {
+ fgInit = kFALSE ;
+ cout << "PHOS Geometry setup: option not defined " << fName << endl ;
+ }
+}
+
+//____________________________________________________________________________
+Float_t AliPHOSGeometry::GetCPVBoxSize(Int_t index) const {
+ if (strcmp(fName,"GPS2") ==0 )
+ return fGeometryPPSD->GetCPVBoxSize(index);
+ else if (strcmp(fName,"IHEP")==0)
+ return fGeometryCPV ->GetCPVBoxSize(index);
+ else if (strcmp(fName,"MIXT")==0)
+ return TMath::Max(fGeometryCPV ->GetCPVBoxSize(index), fGeometryPPSD->GetCPVBoxSize(index));
+ else
+ return 0;
+}
+
+//____________________________________________________________________________
+AliPHOSGeometry * AliPHOSGeometry::GetInstance()
+{
+ // 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 ( fgGeom == 0 ) {
+ if ( strcmp(name,"") == 0 )
+ rv = 0 ;
+ else {
+ fgGeom = new AliPHOSGeometry(name, title) ;
+ if ( fgInit )
+ rv = (AliPHOSGeometry * ) fgGeom ;
+ else {
+ rv = 0 ;
+ delete fgGeom ;
+ fgGeom = 0 ;
+ }
+ }
+ }
+ else {
+ if ( strcmp(fgGeom->GetName(), name) != 0 ) {
+ cout << "AliPHOSGeometry <E> : current geometry is " << fgGeom->GetName() << endl
+ << " you cannot call " << name << endl ;
+ }
+ else
+ rv = (AliPHOSGeometry *) fgGeom ;
+ }
+ return rv ;
+}
+
+//____________________________________________________________________________
+void AliPHOSGeometry::SetPHOSAngles()
+{
+ // Calculates the position in ALICE of the PHOS modules
+
+ Double_t const kRADDEG = 180.0 / kPI ;
+ Float_t pphi = 2 * TMath::ATan( GetOuterBoxSize(0) / ( 2.0 * GetIPtoOuterCoverDistance() ) ) ;
+ pphi *= kRADDEG ;
+ if (pphi > fAngle) cout << "AliPHOSGeometry: PHOS modules overlap!\n";
+ pphi = fAngle;
+
+ for( Int_t i = 1; i <= fNModules ; i++ ) {
+ Float_t angle = pphi * ( i - fNModules / 2.0 - 0.5 ) ;
+ fPHOSAngle[i-1] = - angle ;
+ }
}
//____________________________________________________________________________
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 ;
Int_t phosmodulenumber = (Int_t)TMath:: Ceil( id / ( GetNPhi() * GetNZ() ) ) ;
- if ( phosmodulenumber > GetNModules() ) { // its a PPSD pad
-
- 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() ) ;
+ if ( phosmodulenumber > GetNModules() ) { // it is a PPSD or CPV pad
+
+ if ( strcmp(fName,"GPS2") == 0 ) {
+ 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() ) ;
+ }
+ else if ( strcmp(fName,"IHEP") == 0 ) {
+ id -= GetNPhi() * GetNZ() * GetNModules() ;
+ Float_t nCPV = GetNumberOfCPVPadsPhi() * GetNumberOfCPVPadsZ() ;
+ relid[0] = (Int_t) TMath::Ceil( id / nCPV ) ;
+ relid[1] = 1 ;
+ id -= ( relid[0] - 1 ) * nCPV ;
+ relid[2] = (Int_t) TMath::Ceil( id / GetNumberOfCPVPadsZ() ) ;
+ relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * GetNumberOfCPVPadsZ() ) ;
+ }
+ else if ( strcmp(fName,"MIXT") == 0 ) {
+ id -= GetNPhi() * GetNZ() * GetNModules() ;
+ Float_t nPPSD = 2 * GetNumberOfModulesPhi() * GetNumberOfModulesZ() * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
+ Float_t nCPV = GetNumberOfCPVPadsPhi() * GetNumberOfCPVPadsZ() ;
+ if (id <= nCPV*GetNCPVModules()) { // this pad belons to CPV
+ relid[0] = (Int_t) TMath::Ceil( id / nCPV ) ;
+ relid[1] = 1 ;
+ id -= ( relid[0] - 1 ) * nCPV ;
+ relid[2] = (Int_t) TMath::Ceil( id / GetNumberOfCPVPadsZ() ) ;
+ relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * GetNumberOfCPVPadsZ() ) ;
+ }
+ else { // this pad belons to PPSD
+ id -= nCPV*GetNCPVModules();
+ relid[0] = (Int_t)TMath::Ceil( id / nPPSD );
+ id -= ( relid[0] - 1 ) * nPPSD ;
+ relid[0] += GetNCPVModules();
+ 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
}
return rv ;
}
+
//____________________________________________________________________________
void AliPHOSGeometry::EmcModuleCoverage(const Int_t mod, Double_t & tm, Double_t & tM, Double_t & pm, Double_t & pM, Option_t * opt)
{
// calculates the angular coverage in theta and phi of a EMC module
Double_t conv ;
- if ( opt == kRadian )
+ if ( opt == Radian() )
conv = 1. ;
- else if ( opt == kDegre )
+ else if ( opt == Degre() )
conv = 180. / TMath::Pi() ;
else {
cout << "<I> AliPHOSGeometry::EmcXtalCoverage : " << opt << " unknown option; result in radian " << endl ;
// calculates the angular coverage in theta and phi of a single crystal in a EMC module
Double_t conv ;
- if ( opt == kRadian )
+ if ( opt == Radian() )
conv = 1. ;
- else if ( opt == kDegre )
+ else if ( opt == Degre() )
conv = 180. / TMath::Pi() ;
else {
cout << "<I> AliPHOSGeometry::EmcXtalCoverage : " << opt << " unknown option; result in radian " << endl ;
//____________________________________________________________________________
-void AliPHOSGeometry::ImpactOnEmc(const Double_t theta, const Double_t phi, Int_t & ModuleNumber, Double_t & z, Double_t & x)
-{
- // calculates the impact coordinates of a neutral particle
- // emitted in direction theta and phi in ALICE
-
- // searches for the PHOS EMC module
- ModuleNumber = 0 ;
- Double_t tm, tM, pm, pM ;
- Int_t index = 1 ;
- while ( ModuleNumber == 0 && index <= GetNModules() ) {
- EmcModuleCoverage(index, tm, tM, pm, pM) ;
- if ( (theta >= tm && theta <= tM) && (phi >= pm && phi <= pM ) )
- ModuleNumber = index ;
- index++ ;
- }
- if ( ModuleNumber != 0 ) {
- Float_t phi0 = GetPHOSAngle(ModuleNumber) * (TMath::Pi() / 180.) + 1.5 * TMath::Pi() ;
- Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
- + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
- Double_t angle = phi - phi0;
- x = y0 * TMath::Tan(angle) ;
- angle = theta - TMath::Pi() / 2 ;
- z = y0 * TMath::Tan(angle) ;
- }
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & gmat)
+void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & gmat) const
{
-
+ // Calculates the ALICE global coordinates of a RecPoint and the error matrix
+
AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
TVector3 localposition ;
}
//____________________________________________________________________________
-void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos)
+void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) const
{
+ // Calculates the ALICE global coordinates of a RecPoint
+
AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
TVector3 localposition ;
tmpPHOS->GetLocalPosition(gpos) ;
}
//____________________________________________________________________________
-void AliPHOSGeometry::Init(void)
+void AliPHOSGeometry::ImpactOnEmc(const Double_t theta, const Double_t phi, Int_t & ModuleNumber, Double_t & z, Double_t & x)
{
- fRotMatrixArray = new TObjArray(fNModules) ;
+ // calculates the impact coordinates of a neutral particle
+ // emitted in direction theta and phi in ALICE
- cout << "PHOS geometry setup: parameters for option " << fName << " " << fTitle << endl ;
- if ( ((strcmp( fName, "default" )) == 0) || ((strcmp( fName, "GPS2" )) == 0) ) {
- fInit = kTRUE ;
- this->InitPHOS() ;
- this->InitPPSD() ;
- this->SetPHOSAngles() ;
+ // searches for the PHOS EMC module
+ ModuleNumber = 0 ;
+ Double_t tm, tM, pm, pM ;
+ Int_t index = 1 ;
+ while ( ModuleNumber == 0 && index <= GetNModules() ) {
+ EmcModuleCoverage(index, tm, tM, pm, pM) ;
+ if ( (theta >= tm && theta <= tM) && (phi >= pm && phi <= pM ) )
+ ModuleNumber = index ;
+ index++ ;
}
- else {
- fInit = kFALSE ;
- cout << "PHOS Geometry setup: option not defined " << fName << endl ;
- }
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::InitPHOS(void)
-{
- // PHOS
-
- fNPhi = 64 ;
- fNZ = 64 ;
- fNModules = 5 ;
-
- 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 ;
-
- // all these numbers coming next are subject to changes
-
- fOuterBoxThickness[0] = 2.8 ;
- fOuterBoxThickness[1] = 5.0 ;
- fOuterBoxThickness[2] = 5.0 ;
-
- fUpperPlateThickness = 4.0 ;
-
- fSecondUpperPlateThickness = 5.0 ;
-
- fCrystalSupportHeight = 6.95 ;
- fCrystalWrapThickness = 0.01 ;
- fCrystalHolderThickness = 0.005 ;
- fModuleBoxThickness = 2.0 ;
- fIPtoOuterCoverDistance = 447.0 ;
- fIPtoCrystalSurface = 460.0 ;
-
- 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 ;
- fLowerThermoPlateThickness = 3.0 ;
- fLowerTextolitPlateThickness = 1.0 ;
- fGapBetweenCrystals = 0.03 ;
-
- fTextolitBoxThickness[0] = 1.5 ;
- fTextolitBoxThickness[1] = 0.0 ;
- fTextolitBoxThickness[2] = 3.0 ;
-
- fAirThickness[0] = 1.56 ;
- fAirThickness[1] = 20.5175 ;
- fAirThickness[2] = 2.48 ;
-
- 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
- + 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
- + fTextolitBoxThickness[2] + fOuterBoxThickness[2] ) ;
-
- fTextolitBoxSize[0] = fOuterBoxSize[0] - 2 * fOuterBoxThickness[0] ;
- fTextolitBoxSize[1] = fOuterBoxSize[1] - fOuterBoxThickness[1] - fUpperPlateThickness ;
- fTextolitBoxSize[2] = fOuterBoxSize[2] - 2 * fOuterBoxThickness[2] ;
-
- fAirFilledBoxSize[0] = fTextolitBoxSize[0] - 2 * fTextolitBoxThickness[0] ;
- fAirFilledBoxSize[1] = fTextolitBoxSize[1] - fSecondUpperPlateThickness ;
- fAirFilledBoxSize[2] = fTextolitBoxSize[2] - 2 * fTextolitBoxThickness[2] ;
-
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::InitPPSD(void)
-{
- // PPSD
-
- fAnodeThickness = 0.0009 ;
- fAvalancheGap = 0.01 ;
- fCathodeThickness = 0.0009 ;
- fCompositeThickness = 0.3 ;
- fConversionGap = 0.6 ;
- fLeadConverterThickness = 0.56 ;
- fLeadToMicro2Gap = 0.1 ;
- fLidThickness = 0.2 ;
- fMicro1ToLeadGap = 0.1 ;
- fMicromegasWallThickness = 0.6 ;
- fNumberOfModulesPhi = 4 ;
- fNumberOfModulesZ = 4 ;
- fNumberOfPadsPhi = 24 ;
- fNumberOfPadsZ = 24 ;
- fPCThickness = 0.1 ;
- fPhiDisplacement = 0.8 ;
- fZDisplacement = 0.8 ;
-
- fMicromegas1Thickness = fLidThickness + 2 * fCompositeThickness + fCathodeThickness + fPCThickness
- + fAnodeThickness + fConversionGap + fAvalancheGap ;
- fMicromegas2Thickness = fMicromegas1Thickness ;
-
-
- fPPSDModuleSize[0] = 38.0 ;
- fPPSDModuleSize[1] = fMicromegas1Thickness ;
- fPPSDModuleSize[2] = 38.0 ;
-
- fPPSDBoxSize[0] = fNumberOfModulesPhi * fPPSDModuleSize[0] + 2 * fPhiDisplacement ;
- fPPSDBoxSize[1] = fMicromegas2Thickness + fMicromegas2Thickness + fLeadConverterThickness + fMicro1ToLeadGap + fLeadToMicro2Gap ;
- fPPSDBoxSize[2] = fNumberOfModulesZ * fPPSDModuleSize[2] + 2 * fZDisplacement ;
-
- fIPtoTopLidDistance = fIPtoOuterCoverDistance - fPPSDBoxSize[1] - 1. ;
-
-}
-
-//____________________________________________________________________________
-AliPHOSGeometry * AliPHOSGeometry::GetInstance()
-{
- return (AliPHOSGeometry *) fGeom ;
-}
-
-//____________________________________________________________________________
-AliPHOSGeometry * AliPHOSGeometry::GetInstance(const Text_t* name, const Text_t* title)
-{
- AliPHOSGeometry * rv = 0 ;
- if ( fGeom == 0 ) {
- fGeom = new AliPHOSGeometry(name, title) ;
- rv = (AliPHOSGeometry * ) fGeom ;
+ if ( ModuleNumber != 0 ) {
+ Float_t phi0 = GetPHOSAngle(ModuleNumber) * (TMath::Pi() / 180.) + 1.5 * TMath::Pi() ;
+ Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
+ Double_t angle = phi - phi0;
+ x = y0 * TMath::Tan(angle) ;
+ angle = theta - TMath::Pi() / 2 ;
+ z = y0 * TMath::Tan(angle) ;
}
- else {
- if ( strcmp(fGeom->GetName(), name) != 0 ) {
- cout << "AliPHOSGeometry <E> : current geometry is " << fGeom->GetName() << endl
- << " you cannot call " << name << endl ;
- }
- else
- rv = (AliPHOSGeometry *) fGeom ;
- }
- return rv ;
}
//____________________________________________________________________________
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
+ // EMCA crystals:
+ // AbsId = from 1 to fNModules * fNPhi * fNZ
+ // PPSD gas cell:
+ // AbsId = from N(total EMCA crystals) + 1
+ // to NCPVModules * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ +
+ // fNModules * 2 * (fNumberOfModulesPhi * fNumberOfModulesZ) * fNumberOfPadsPhi * fNumberOfPadsZ
+ // CPV pad:
+ // AbsId = from N(total PHOS crystals) + 1
+ // to NCPVModules * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ
Bool_t rv = kTRUE ;
- if ( relid[1] > 0 ) { // its a PPSD pad
+ if ( relid[1] > 0 && strcmp(fName,"GPS2")==0) { // it is a PPSD pad
+ AbsId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate EMCA crystals from PPSD pads
+ + ( relid[0] - 1 ) * GetNumberOfModulesPhi() * GetNumberOfModulesZ() // the pads offset of PPSD 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
+ }
- AbsId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate emcal crystals from PPSD pads
- + ( relid[0] - 1 ) * GetNumberOfModulesPhi() * GetNumberOfModulesZ() // the pads offset of PHOS modules
+ else if ( relid[1] > 0 && strcmp(fName,"MIXT")==0) { // it is a PPSD pad
+ AbsId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate EMCA crystals from PPSD pads
+ + GetNCPVModules() * GetNumberOfCPVPadsPhi() * GetNumberOfCPVPadsZ() // the pads offset of CPV modules if any
+ + ( relid[0] - 1 - GetNCPVModules())
+ * GetNumberOfModulesPhi() * GetNumberOfModulesZ() // the pads offset of PPSD 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
- }
+
+ else if ( relid[1] == 0 ) { // it is 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
}
+ else if ( relid[1] == -1 ) { // it is a CPV pad
+ AbsId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate EMCA crystals from CPV pads
+ + ( relid[0] - 1 ) * GetNumberOfCPVPadsPhi() * GetNumberOfCPVPadsZ() // the pads offset of PHOS modules
+ + ( relid[2] - 1 ) * GetNumberOfCPVPadsZ() // the pads offset of a CPV row
+ + relid[3] ; // the column number
+ }
+
return rv ;
}
void AliPHOSGeometry::RelPosInAlice(const Int_t id, TVector3 & pos )
{
- if (id > 0) {
-
- Int_t relid[4] ;
-
- AbsToRelNumbering(id , relid) ;
-
- Int_t phosmodule = relid[0] ;
-
- Float_t y0 = 0 ;
-
- 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
- {
- y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ;
- }
- else // its an upper module
- y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() - GetLeadToMicro2Gap()
- - GetLeadConverterThickness() - GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0) ;
- }
-
- Float_t x, z ;
- RelPosInModule(relid, x, z) ;
-
- pos.SetX(x) ;
- pos.SetZ(z) ;
- pos.SetY( TMath::Sqrt(x*x + z*z + y0*y0) ) ;
-
-
-
- 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
+ // Converts the absolute numbering into the global ALICE coordinates
+ // It works only for the GPS2 geometry
- TRotation dummy = rot.Invert() ; // to transform from original frame to rotate frame
-
- pos.Transform(rot) ; // rotate the baby
+ if (id > 0 && strcmp(fName,"GPS2")==0) {
+
+ Int_t relid[4] ;
+
+ AbsToRelNumbering(id , relid) ;
+
+ Int_t phosmodule = relid[0] ;
+
+ Float_t y0 = 0 ;
+
+ 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
+ y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ;
+ }
+ else // its an upper module
+ y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() - GetLeadToMicro2Gap()
+ - GetLeadConverterThickness() - GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0) ;
+ }
+
+ Float_t x, z ;
+ RelPosInModule(relid, x, z) ;
+
+ pos.SetX(x) ;
+ pos.SetZ(z) ;
+ pos.SetY( TMath::Sqrt(x*x + z*z + y0*y0) ) ;
+
+
+
+ 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 dummy = rot.Invert() ; // to transform from original frame to rotate frame
+
+ pos.Transform(rot) ; // rotate the baby
}
else {
- pos.SetX(0.);
- pos.SetY(0.);
- pos.SetZ(0.);
- }
+ pos.SetX(0.);
+ pos.SetY(0.);
+ pos.SetZ(0.);
+ }
}
//____________________________________________________________________________
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
-
- 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
- }
- 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
- }
-}
+ // Converts the relative numbering into the local PHOS-module (x, z) coordinates
+ // Note: sign of z differs from that in the previous version (Yu.Kharlov, 12 Oct 2000)
-//____________________________________________________________________________
-void AliPHOSGeometry:: SetPHOSAngles()
-{
- Double_t const kRADDEG = 180.0 / kPI ;
- Float_t pphi = TMath::ATan( fOuterBoxSize[0] / ( 2.0 * fIPtoOuterCoverDistance ) ) ;
- pphi *= kRADDEG ;
+ Bool_t padOfCPV = (strcmp(fName,"IHEP")==0) ||
+ ((strcmp(fName,"MIXT")==0) && relid[0]<=GetNCPVModules()) ;
+ Bool_t padOfPPSD = (strcmp(fName,"GPS2")==0) ||
+ ((strcmp(fName,"MIXT")==0) && relid[0]> GetNCPVModules()) ;
- for( Int_t i = 1; i <= fNModules ; i++ ) {
- 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 ;
+ Int_t ppsdmodule ;
+ Float_t x0,z0;
+ Int_t row = relid[2] ; //offset along x axiz
+ Int_t column = relid[3] ; //offset along z axiz
+
+ Float_t padsizeZ = 0;
+ Float_t padsizeX = 0;
+ Int_t nOfPadsPhi = 0;
+ Int_t nOfPadsZ = 0;
+ if ( padOfPPSD ) {
+ padsizeZ = GetPPSDModuleSize(2) / GetNumberOfPadsZ();
+ padsizeX = GetPPSDModuleSize(0) / GetNumberOfPadsPhi();
+ nOfPadsPhi = GetNumberOfPadsPhi();
+ nOfPadsZ = GetNumberOfPadsZ();
+ }
+ else if ( padOfCPV ) {
+ padsizeZ = GetPadSizeZ();
+ padsizeX = GetPadSizePhi();
+ nOfPadsPhi = GetNumberOfCPVPadsPhi();
+ nOfPadsZ = GetNumberOfCPVPadsZ();
+ }
+
+ 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 ( padOfPPSD ) {
+ 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() ;
+ x0 = ( GetNumberOfModulesPhi() / 2. - modrow + 0.5 ) * GetPPSDModuleSize(0) ;
+ z0 = ( GetNumberOfModulesZ() / 2. - modcol + 0.5 ) * GetPPSDModuleSize(2) ;
+ } else {
+ x0 = 0;
+ z0 = 0;
+ }
+ x = - ( nOfPadsPhi/2. - row - 0.5 ) * padsizeX + x0 ; // position of pad with respect
+ z = ( nOfPadsZ /2. - column - 0.5 ) * padsizeZ - z0 ; // of center of PHOS module
+ }
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff