ILArBarrelPresamplerGeometry.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
// ILArBarrelPresamplerGeometry.h
// Prepared in 2016 based on LArVCalculator from Bill Seligman
 
#ifndef LARG4BARREL_ILARBARRELPRESAMPLERGEOMETRY_H
#define LARG4BARREL_ILARBARRELPRESAMPLERGEOMETRY_H
 
#include "GaudiKernel/IService.h"
 
#include "globals.hh"
 
#include "LArG4Code/LArG4Identifier.h"
 
 
// Forward declaractions:
class G4Step;
 
namespace LArG4 {
 
  namespace BarrelPresampler {
 
    // output of computations
    struct CalcData {
      G4int sampling = 0;       // sampling number  (1 to 3)
      G4int region = 0;         // region number (0 or 1)
      G4int etaBin = 0;         // cell number in eta
      G4int phiBin = 0;         // cell number in phi
      G4int gap = 0;
      G4int module = 0;
      G4double distElec = 0.;    // algebric distance to electrode
      G4double xElec = 0.;       // projection along electrode axis
      G4double dist = 0.;
    };
 
  } //end of BarrelPresampler namespace
 
} // end of LArG4 namespace
 
class ILArBarrelPresamplerGeometry: virtual public IService {
public:
 
  ILArBarrelPresamplerGeometry() {};
 
  virtual ~ILArBarrelPresamplerGeometry() {};
 
  DeclareInterfaceID(ILArBarrelPresamplerGeometry,1,0);
 
  // Full identifier computation from a G4 step
  virtual LArG4Identifier CalculateIdentifier( const G4Step*) const = 0;
 
  // Given a point compute all quantities (cell number, distance to electrode, etc...)
  virtual bool findCell(LArG4::BarrelPresampler::CalcData & currentCellData, G4double xloc,G4double yloc,G4double zloc) const = 0;
};
 
#endif // LARG4BARREL_ILARBARRELPRESAMPLERGEOMETRY_H