HECDetectorRegion.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef LARREADOUTGEOMETRY_HECDETECTORREGION_H
#define LARREADOUTGEOMETRY_HECDETECTORREGION_H
 
#include "GeoPrimitives/GeoPrimitives.h"
#include "LArReadoutGeometry/HECDetDescr.h"
#include "LArReadoutGeometry/HECCellConstLink.h"
#include "GeoModelKernel/GeoVDetectorElement.h"
#include "GeoModelKernel/GeoDefinitions.h"
#include "GaudiKernel/SystemOfUnits.h"
#include "CLHEP/Geometry/Point3D.h"

 
class GeoAlignmentStore;
 
 
class HECDetectorRegion : public GeoVDetectorElement  
{
  
 public:
  typedef enum {NEG=0,POS=1} DetectorSide;
  
 
 public:
    
      
  HECDetectorRegion (const GeoVFullPhysVol *physVol
             , const HECDetDescr *hecDescriptor
             , DetectorSide endcap
             , double projectivityDisplacement = 4*Gaudi::Units::cm);

  ~HECDetectorRegion();
      
  HECCellConstLink getHECCell (unsigned int ieta, unsigned int iphi) const;
      
  const HECDetDescr * getDescriptor () const;
      
  unsigned int getSamplingIndex () const;
      
  unsigned int getRegionIndex () const;
      
  unsigned int beginPhiIndex () const;
      
  unsigned int endPhiIndex () const;
      
  unsigned int beginEtaIndex () const;
      
  unsigned int endEtaIndex () const;

  const Amg::Transform3D&  getAbsoluteTransform (const GeoAlignmentStore* alignStore=nullptr) const;

  const Amg::Transform3D&  getDefAbsoluteTransform (const GeoAlignmentStore* alignStore=nullptr) const;
      
  HepGeom::Point3D<double> getRefPlanePos () const;
      
  HepGeom::Point3D<double> getFocalPointPos () const;

  Amg::Vector3D getRefPlanePosAmg () const;
      
  Amg::Vector3D getFocalPointPosAmg () const;
 

  HECDetectorRegion::DetectorSide getEndcapIndex () const;
 
  double getProjectivityDisplacement() const;
 
 private:
    
  HECDetectorRegion(const HECDetectorRegion &right);
  HECDetectorRegion & operator=(const HECDetectorRegion &right);
  GeoIntrusivePtr<const HECDetDescr> m_descriptor{};
  HECDetectorRegion::DetectorSide m_endcapIndex;
 
  double m_projectivityDisplacement;
};
 
 
 
 
// Class HECDetectorRegion 
 
 
 
inline const HECDetDescr * HECDetectorRegion::getDescriptor () const
{
  
  return m_descriptor;
  
}
 
inline unsigned int HECDetectorRegion::getSamplingIndex () const
{
  
  return getDescriptor()->getSamplingIndex();
  
}
 
inline unsigned int HECDetectorRegion::getRegionIndex () const
{
  
  return getDescriptor()->getRegionIndex();
  
}
 
inline unsigned int HECDetectorRegion::beginPhiIndex () const
{
  
  return m_descriptor->getPhiBinning().getFirstDivisionNumber();
  
}
 
inline unsigned int HECDetectorRegion::endPhiIndex () const
{
  
  return m_descriptor->getPhiBinning().getFirstDivisionNumber() + m_descriptor->getPhiBinning().getNumDivisions();
  
}
 
inline unsigned int HECDetectorRegion::beginEtaIndex () const
{
  
  return m_descriptor->getEtaBinning().getFirstDivisionNumber();
  
}
 
inline unsigned int HECDetectorRegion::endEtaIndex () const
{
  
  return m_descriptor->getEtaBinning().getFirstDivisionNumber() + m_descriptor->getEtaBinning().getNumDivisions();
  
}
 
 
 
inline HECDetectorRegion::DetectorSide HECDetectorRegion::getEndcapIndex () const
{
  
  return m_endcapIndex;
  
}
 
inline double HECDetectorRegion::getProjectivityDisplacement() const
{
  return m_projectivityDisplacement;
}
 
 
 
 
#endif