LArBarrelPresamplerGeometry.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
// LArBarrelPresamplerGeometry.hh
 
#ifndef LARG4BARREL_LARBARRELPRESAMPLERGEOMETRY_H
#define LARG4BARREL_LARBARRELPRESAMPLERGEOMETRY_H
 
#include "ILArBarrelPresamplerGeometry.h"
#include "AthenaBaseComps/AthService.h"
 
#include "LArG4Code/LArG4Identifier.h"
 
#include "AthenaKernel/Units.h"
#include "globals.hh"
 
 
// Forward declarations.
class LArG4Identifier;
class G4Step;
 
namespace LArG4 {
 
  namespace BarrelPresampler {
 
    class Geometry: public extends<AthService, ILArBarrelPresamplerGeometry> {
 
    public:
 
       //constructor
      Geometry(const std::string& name, ISvcLocator * pSvcLocator);
 
      virtual ~Geometry() = default;
 
      virtual StatusCode initialize() override final;
 
      virtual LArG4Identifier CalculateIdentifier( const G4Step* ) const override final;
      virtual bool findCell(CalcData & currentCellData, G4double xloc,G4double yloc,G4double zloc) const override final;
 
    private:
      LArG4Identifier CalculatePSActiveIdentifier( const G4Step* , const G4int indPS ) const;
      LArG4Identifier CalculatePS_DMIdentifier( const G4Step* , const G4int indPS ) const;
 
      inline G4int determineZSide(const double zCoord) const {
        // in TB case, only 1 side,
        // in Atlas case, use overall z to decide side
        if (m_testbeam) { return 1; }
        if (zCoord > 0.) { return 1; }
        return -1;
      }
      
      // detector name, for translated geometry
      Gaudi::Property<std::string> m_detectorName{this, "DetectorName", "LArMgr"};
      // is this a test beam simulation job
      Gaudi::Property<bool> m_testbeam{this, "TestBeam", false};
 
      
#include "PresParameterDef.h"
 
      // end z of the various modules
      G4double m_end_module[8]{};
      G4double m_zminPS{3.00*Athena::Units::mm};   // FIXME this should come from the database;
      G4double m_zpres{1549.*Athena::Units::mm}; // position of mother volume inside nominal Atlas frame
      G4double m_cat_th{};
      // z of first cathode in each module
      G4double m_first_cathod[8]{};
      // tilt of electrodes
      G4double m_tilt[8]{};
      // number of gaps per cell
      G4int m_ngap_cell[8]{};
      // pitch in z of gaps
      G4double m_pitch[8]{};
      // number of cells per modules
      G4int    m_ncell_module[8]{};
      // total LAr thickness
      G4double m_halfThickLAr{0.5*13.*Athena::Units::mm}; // LAr total gap
    } ;
 
  } //end of Barrel namespace
 
} // end of LArG4 namespace
 
#endif // LARG4BARREL_LARBARRELPRESAMPLERGEOMETRY_H