Geo2G4Builder.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef GEO2G4_GEO2G4BUILDER_H
#define GEO2G4_GEO2G4BUILDER_H

 
#include "G4LogicalVolume.hh"
#include "VolumeBuilder.h"
 
#include "GaudiKernel/ServiceHandle.h"
#include "AthenaBaseComps/AthMessaging.h"
 
#include "G4AtlasInterfaces/IGeo2G4Svc.h"
#include "GeoModelKernel/GeoVPhysVol.h"
#include "GeoModelKernel/GeoDefinitions.h"
#include "GeoModelUtilities/GeoBorderSurfaceContainer.h"
#include "GeoPrimitives/CLHEPtoEigenConverter.h"
 
// STL includes
#include <string>
#include <vector>
 
class GeoMaterial;
class StoreGateSvc;
class GeoModelExperiment;
 
class Geo2G4Builder : public AthMessaging {
 
public:
  // Constructor:
  Geo2G4Builder(const std::string& detectorName);
  // Destructor:
  ~Geo2G4Builder() = default;
 
  // Build method - geometry
  G4LogicalVolume*        BuildTree();
 
  // Build method - optical surfaces
  void BuildOpticalSurfaces(const GeoBorderSurfaceContainer* surface_container,
                            const OpticalVolumesMap* optical_volumes);
 
  // Access volume builder:
  VolumeBuilder*        GetVolumeBuilder(std::string);
 
  HepGeom::Transform3D GetDetectorTransform() {return Amg::EigenTransformToCLHEP(m_motherTransform);}
 
private:
 
  // GeoVDetectorManager* theDetectorElement;
  std::string m_detectorName;
  GeoTrf::Transform3D m_motherTransform;
  std::vector<PVConstLink> m_treeTops;
  VolumeBuilder *m_theBuilder;
 
  // std::Air in the case when top boolean envelope has to be built
  const GeoMaterial* m_matAir{nullptr};
  ServiceHandle<StoreGateSvc> m_pDetStore{"DetectorStore", "Geo2G4Builder"};
  ServiceHandle<IGeo2G4Svc> m_g2gSvc{"Geo2G4Svc", "Geo2G4Builder"};
  GeoModelExperiment* m_theExpt{nullptr};
};
 
#endif