-#ifndef ALIPHOSGEOMETRY_H
-#define ALIPHOSGEOMETRY_H
-/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * See cxx source for full Copyright notice */
-
-////////////////////////////////////////////////
-// Geometry class for PHOS : singleton //
-// Version SUBATECH //
-// Author Y. Schutz SUBATECH //
-// geometry parametrized for any //
-// shape of modules //
-////////////////////////////////////////////////
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+//_________________________________________________________________________
+// Geometry class for PHOS version SUBATECH
+//*-- Author : Y. Schutz SUBATECH
+//////////////////////////////////////////////////////////////////////////////
// --- ROOT system ---
-#include "TNamed.h"
-#include "TString.h"
-#include "TObjArray.h"
-#include "TVector3.h"
+#include "TVector3.h"
+#include "TRotation.h"
+
+// --- Standard library ---
+
+#include <iostream.h>
+#include "assert.h"
// --- AliRoot header files ---
-#include "AliGeometry.h"
-#include "AliPHOSRecPoint.h"
-
-class AliPHOSGeometry : public AliGeometry {
-
-public:
-
- AliPHOSGeometry() {} ; // must be kept public for root persistency purposes
- virtual ~AliPHOSGeometry(void) ;
- static AliPHOSGeometry * GetInstance(const Text_t* name, const Text_t* title) ;
- static AliPHOSGeometry * GetInstance() ;
- virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & gmat) ;
- virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) ;
-
-protected:
-
- AliPHOSGeometry(const Text_t* name, const Text_t* title) : AliGeometry(name, title) { Init() ; }
- void Init(void) ; // steering method for PHOS and CPV
- void InitPHOS(void) ; // defines the various PHOS geometry parameters
- void InitPPSD(void) ; // defines the various PPSD geometry parameters
-
-public:
-
- // General
-
- Bool_t AbsToRelNumbering(const Int_t AbsId, Int_t * RelId) ; // converts the absolute PHOS numbering to a relative
- void RelPosInModule(const Int_t * RelId, Float_t & y, Float_t & z) ; // gets the position of element (pad or Xtal) relative to
- // center of PHOS module
- void RelPosInAlice(const Int_t AbsId, TVector3 & pos) ; // gets the position of element (pad or Xtal) relative to
- // Alice
- Bool_t RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId) ; // converts the absolute PHOS numbering to a relative
- // inlines
-
- ///////////// PHOS related parameters
-
- Bool_t IsInitialized(void) const { return fInit ; }
- Float_t GetAirFilledBoxSize(Int_t index) const { return fAirFilledBoxSize[index] ;}
- Float_t GetCrystalHolderThickness(void) const { return fCrystalHolderThickness ; }
- Float_t GetCrystalSize(Int_t index) const { return fXtlSize[index] ; }
- Float_t GetCrystalSupportHeight(void) const { return fCrystalSupportHeight ; }
- Float_t GetCrystalWrapThickness(void) const { return fCrystalWrapThickness;}
- Float_t GetGapBetweenCrystals(void) const { return fGapBetweenCrystals ; }
- Float_t GetIPtoCrystalSurface(void) const { return fIPtoCrystalSurface ; }
- Float_t GetIPtoOuterCoverDistance(void) const { return fIPtoOuterCoverDistance ; }
- Float_t GetIPtoTopLidDistance(void) const { return fIPtoTopLidDistance ; }
- Float_t GetLowerThermoPlateThickness(void) const { return fLowerThermoPlateThickness ; }
- Float_t GetLowerTextolitPlateThickness(void) const { return fLowerTextolitPlateThickness ; }
- Float_t GetModuleBoxThickness(void) const { return fModuleBoxThickness ; }
- Int_t GetNPhi(void) const { return fNPhi ; }
- Int_t GetNZ(void) const { return fNZ ; }
- Int_t GetNModules(void) const { return fNModules ; }
- Float_t GetOuterBoxSize(Int_t index) const { return fOuterBoxSize[index] ; }
- Float_t GetOuterBoxThickness(Int_t index) const { return fOuterBoxThickness[index] ; }
- Float_t GetPHOSAngle(Int_t index) const { return fPHOSAngle[index-1] ; }
- Float_t GetPinDiodeSize(Int_t index) const { return fPinDiodeSize[index] ; }
- Float_t GetSecondUpperPlateThickness(void) const { return fSecondUpperPlateThickness ; }
- Float_t GetSupportPlateThickness(void) const { return fSupportPlateThickness ; }
- Float_t GetTextolitBoxSize(Int_t index) const { return fTextolitBoxSize[index] ; }
- Float_t GetTextolitBoxThickness(Int_t index) const { return fTextolitBoxThickness[index]; }
- Float_t GetUpperPlateThickness(void) const { return fUpperPlateThickness ; }
- Float_t GetUpperCoolingPlateThickness(void) const { return fUpperCoolingPlateThickness ; }
-
-private:
-
- void SetPHOSAngles() ; // calculates the PHOS modules PHI angle
-
-public:
+#include "AliPHOSGeometry.h"
+#include "AliPHOSPpsdRecPoint.h"
+#include "AliConst.h"
+
+ClassImp(AliPHOSGeometry)
+
+ AliPHOSGeometry * AliPHOSGeometry::fGeom = 0 ;
+
+//____________________________________________________________________________
+AliPHOSGeometry::~AliPHOSGeometry(void)
+{
+ fRotMatrixArray->Delete() ;
+ delete fRotMatrixArray ;
+}
+
+//____________________________________________________________________________
+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
+
+ 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() ) ;
+ }
+ 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() ) ;
+ }
+ return rv ;
+}
+
+//____________________________________________________________________________
+void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & gmat)
+{
+
+ AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
+ TVector3 LocalPosition ;
+
+ tmpPHOS->GetLocalPosition(gpos) ;
+
+
+ if ( tmpPHOS->IsEmc() ) // it is a EMC crystal
+ { gpos.SetY( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness() +
+ GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
+
+ }
+ else
+ { // it is a PPSD pad
+ AliPHOSPpsdRecPoint * tmpPpsd = (AliPHOSPpsdRecPoint *) RecPoint ;
+ if (tmpPpsd->GetUp() ) // it is an upper module
+ {
+ gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() -
+ GetLeadToMicro2Gap() - GetLeadConverterThickness() -
+ GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0 ) ) ;
+ }
+ else // it is a lower module
+ gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
+ }
+
+ Float_t Phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
+ Double_t const RADDEG = 180.0 / kPI ;
+ Float_t rPhi = Phi / RADDEG ;
+
+ 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
+}
+
+//____________________________________________________________________________
+void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos)
+{
+ AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
+ TVector3 LocalPosition ;
+ tmpPHOS->GetLocalPosition(gpos) ;
+
+
+ if ( tmpPHOS->IsEmc() ) // it is a EMC crystal
+ { gpos.SetY( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness() +
+ GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
+ }
+ else
+ { // it is a PPSD pad
+ AliPHOSPpsdRecPoint * tmpPpsd = (AliPHOSPpsdRecPoint *) RecPoint ;
+ if (tmpPpsd->GetUp() ) // it is an upper module
+ {
+ gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() -
+ GetLeadToMicro2Gap() - GetLeadConverterThickness() -
+ GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0 ) ) ;
+ }
+ else // it is a lower module
+ gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
+ }
+
+ Float_t Phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
+ Double_t const RADDEG = 180.0 / kPI ;
+ Float_t rPhi = Phi / RADDEG ;
+
+ 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
+}
+
+//____________________________________________________________________________
+void AliPHOSGeometry::Init(void)
+{
+ fRotMatrixArray = new TObjArray(fNModules) ;
+
+ 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() ;
+ }
+ 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] = 1.0 ;
+ fPinDiodeSize[1] = 0.1 ;
+ fPinDiodeSize[2] = 1.0 ;
+
+ 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 = 0.3 ;
+ 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 ;
- ///////////// PPSD (PHOS PRE SHOWER DETECTOR) related parameters
-
-
- Float_t GetAnodeThickness(void) const { return fAnodeThickness ; }
- Float_t GetAvalancheGap(void) const { return fAvalancheGap ; }
- Float_t GetCathodeThickness(void) const { return fCathodeThickness ; }
- Float_t GetCompositeThickness(void) const { return fCompositeThickness ; }
- Float_t GetConversionGap(void) const { return fConversionGap ; }
- Float_t GetLeadConverterThickness(void) const { return fLeadConverterThickness ; }
- Float_t GetLeadToMicro2Gap(void) const { return fLeadToMicro2Gap ; }
- Float_t GetLidThickness(void) const { return fLidThickness ; }
- Float_t GetMicromegas1Thickness(void) const { return fMicromegas1Thickness ; }
- Float_t GetMicromegas2Thickness(void) const { return fMicromegas2Thickness ; }
- Float_t GetMicromegasWallThickness(void) const { return fMicromegasWallThickness ; }
- Float_t GetMicro1ToLeadGap(void) const { return fMicro1ToLeadGap ; }
- Int_t GetNumberOfPadsPhi(void) const { return fNumberOfPadsPhi ; }
- Int_t GetNumberOfPadsZ(void) const { return fNumberOfPadsZ ; }
- Int_t GetNumberOfModulesPhi(void) const { return fNumberOfModulesPhi ; }
- Int_t GetNumberOfModulesZ(void) const { return fNumberOfModulesZ ; }
- Float_t GetPCThickness(void) const { return fPCThickness ; }
- Float_t GetPhiDisplacement(void) const { return fPhiDisplacement ; }
- Float_t GetPPSDBoxSize(Int_t index) const { return fPPSDBoxSize[index] ; }
- Float_t GetPPSDModuleSize(Int_t index) const { return fPPSDModuleSize[index] ; }
- Float_t GetZDisplacement(void) const { return fZDisplacement ; }
-
-private:
-
- ///////////// PHOS related parameters
-
- Float_t fAirFilledBoxSize[3] ; // Air filled box containing one module
- Float_t fAirThickness[3] ; // Space filled with air between the module box and the Textolit box
- Float_t fCrystalSupportHeight ; // Height of the support of the crystal
- Float_t fCrystalWrapThickness ; // Thickness of Tyvek wrapping the crystal
- Float_t fCrystalHolderThickness ; // Titanium holder of the crystal
- Float_t fGapBetweenCrystals ; // Total Gap between two adjacent crystals
- Bool_t fInit ; // Tells if geometry has been succesfully set up
- Float_t fIPtoOuterCoverDistance ; // Distances from interaction point to outer cover
- Float_t fIPtoCrystalSurface ; // Distances from interaction point to Xtal surface
- Float_t fModuleBoxThickness ; // Thickness of the thermo insulating box containing one crystals module
- Float_t fLowerTextolitPlateThickness ; // Thickness of lower textolit plate
- Float_t fLowerThermoPlateThickness ; // Thickness of lower thermo insulating plate
- Int_t fNModules ; // Number of modules constituing PHOS
- Int_t fNPhi ; // Number of crystal units in X (phi) direction
- Int_t fNZ ; // Number of crystal units in Z direction
- Float_t fOuterBoxSize[3] ; // Size of the outer thermo insulating foam box
- Float_t fOuterBoxThickness[3] ; // Thickness of the outer thermo insulating foam box
- Float_t fPHOSAngle[4] ; // Position angles of modules
- Float_t fPinDiodeSize[3] ; // Size of the PIN Diode
- TObjArray * fRotMatrixArray ; // Liste of rotation matrices (one per phos module)
- Float_t fSecondUpperPlateThickness ; // Thickness of upper polystyrene foam plate
- Float_t fSupportPlateThickness ; // Thickness of the Aluminium support plate
- Float_t fUpperCoolingPlateThickness ; // Thickness of the upper cooling plate
- Float_t fUpperPlateThickness ; // Thickness of the uper thermo insulating foam plate
- Float_t fTextolitBoxSize[3] ; // Size of the Textolit box inside the insulating foam box
- Float_t fTextolitBoxThickness[3] ; // Thicknesses of th Textolit box
- Float_t fXtlSize[3] ; // PWO4 crystal dimensions
-
-
- ///////////// PPSD (PHOS PRE SHOWER DETECTOR) related parameters
-
- Float_t fAnodeThickness ; // Thickness of the copper layer which makes the anode
- Float_t fAvalancheGap ; // Thickness of the gas in the avalanche stage
- Float_t fCathodeThickness ; // Thickeness of composite material ensuring rigidity of cathode
- Float_t fCompositeThickness ; // Thickeness of composite material ensuring rigidity of anode
- Float_t fConversionGap ; // Thickness of the gas in the conversion stage
- Float_t fIPtoTopLidDistance ; // Distance from interaction point to top lid of PPSD
- Float_t fLeadConverterThickness ; // Thickness of the Lead converter
- Float_t fLeadToMicro2Gap ; // Thickness of the air gap between the Lead and Micromegas 2
- Float_t fLidThickness ; // Thickness of top lid
- Float_t fMicromegas1Thickness ; // Thickness of the first downstream Micromegas
- Float_t fMicromegas2Thickness ; // Thickness of the second downstream Micromegas
- Float_t fMicromegasWallThickness ; // Thickness of the Micromegas leak tight box
- Float_t fMicro1ToLeadGap ; // Thickness of the air gap between Micromegas 1 and the Lead
- Int_t fNumberOfPadsPhi ; // Number of pads on a micromegas module ;
- Int_t fNumberOfPadsZ ; // Number of pads on a micromegas module ;
- Int_t fNumberOfModulesPhi ; // Number of micromegas modules in phi
- Int_t fNumberOfModulesZ ; // Number of micromegas modules in z
- Float_t fPCThickness ; // Thickness of the printed circuit board of the anode
- Float_t fPhiDisplacement ; // Phi displacement of micromegas1 with respect to micromegas2
- Float_t fPPSDBoxSize[3] ; // Size of large box which contains PPSD; matches PHOS module size
- Float_t fPPSDModuleSize[3] ; // Size of an individual micromegas module
- Float_t fZDisplacement ; // Z displacement of micromegas1 with respect to micromegas2
-
- static AliPHOSGeometry * fGeom ; // pointer to the unique instance of the singleton
-
- ClassDef(AliPHOSGeometry,1) // PHOS geometry class , version subatech
-
-} ;
-
-#endif // AliPHOSGEOMETRY_H
+ 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()
+{
+ assert(fGeom!=0) ;
+ 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 ;
+ }
+ 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
+
+ Bool_t rv = kTRUE ;
+
+ 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
+ * 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
+ }
+ 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
+ }
+ }
+
+ 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] ;
+
+
+ if ( RelId[1] == 0 ) // it is a PbW04 crystal
+ { pos.SetY( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
+ + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
+ }
+ if ( RelId[1] > 0 ) { // its a PPSD pad
+ if ( RelId[1] > GetNumberOfModulesPhi() * GetNumberOfModulesZ() ) // its an bottom module
+ {
+ pos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
+ }
+ else // its an upper module
+ pos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() - GetLeadToMicro2Gap()
+ - GetLeadConverterThickness() - GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0) ) ;
+ }
+
+ Float_t x, z ;
+ RelPosInModule(RelId, x, z) ;
+
+ pos.SetX(x);
+ pos.SetZ(z);
+
+
+ Float_t Phi = GetPHOSAngle( PHOSModule) ;
+ Double_t const RADDEG = 180.0 / kPI ;
+ Float_t rPhi = Phi / RADDEG ;
+
+ 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.);
+ }
+}
+
+//____________________________________________________________________________
+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
+ }
+}
+
+//____________________________________________________________________________
+void AliPHOSGeometry:: SetPHOSAngles()
+{
+ Double_t const RADDEG = 180.0 / kPI ;
+ Float_t PPHI = TMath::ATan( fOuterBoxSize[0] / ( 2.0 * fIPtoOuterCoverDistance ) ) ;
+ PPHI *= RADDEG ;
+
+ for( Int_t i = 1; i <= fNModules ; i++ ) {
+ Float_t angle = PPHI * 2 * ( i - fNModules / 2.0 - 0.5 ) ;
+ fPHOSAngle[i-1] = - angle ;
+ }
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff