G4HepMCInterface.h

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// ====================================================================
//
//   G4HepMCInterface.hh
//   $Id: G4HepMCInterface.h,v 1.6 2022/04/02 02:46:19 fucd Exp $
//
//   A base class for primary generation via HepMC object.
//   This class is derived from G4VPrimaryGenerator.
//
// ====================================================================
#ifndef G4_HEPMC_INTERFACE_H
#define G4_HEPMC_INTERFACE_H
 
#include "G4HepMCParticle.h"
#include "G4VPrimaryGenerator.hh"
#include "RealizationSvc/IRealizationSvc.h"
#include <HepMC/GenEvent.h>
#include <vector>
 
class G4HepMCInterface : public G4VPrimaryGenerator {
public:
  // static service method for conversion from HepMC::GenEvent to G4Event
  void  HepMC2G4( HepMC::GenEvent* hepmcevt, G4Event* g4event );
  void  Print( const HepMC::GenEvent* hepmcevt );
  G4int CheckType( const HepMC::GenEvent* hepmcevt );
  void  Boost( HepMC::GenEvent* hepmcevt );
  void  PrintHPlist();
 
  G4int GetLogLevel() { return m_logLevel; }
  void  SetLogLevel( G4int level ) { m_logLevel = level; }
 
  // static service method for checking a point is included in the (current) world
  // static G4bool CheckVertexInsideWorld(const G4ThreeVector& pos);
  // ------------> This method has been moved to the base class
 
protected:
  // Note that the life of HepMC event object must be handled by users.
  // In the default implementation, a current HepMC event will be
  // deleted at GeneratePrimaryVertex() in the next event.
  HepMC::GenEvent* hepmcEvent; // (care for single event case only)
 
  // Implement this method in his/her own concrete class.
  // An empty event will be created in default.
  virtual HepMC::GenEvent* GenerateHepMCEvent();
  G4int                    m_logLevel;
 
public:
  G4HepMCInterface();
  virtual ~G4HepMCInterface();
 
  // set/get methods
  HepMC::GenEvent* GetHepMCGenEvent() const;
 
  // The default behavior is that a single HepMC event generated by
  // GenerateHepMCEvent() will be converted to G4Event through HepMC2G4().
  virtual void GeneratePrimaryVertex( G4Event* anEvent );
 
  std::vector<G4HepMCParticle*> HPlist;
 
private:
  IRealizationSvc* m_RealizationSvc;
 
  // PDGCode from BesEvtGen or PartPropSvc or default
  // int m_geantinoPdgId;
  // int m_chargedgeantinoPdgId;
};
 
// ====================================================================
// inline functions
// ====================================================================
 
inline HepMC::GenEvent* G4HepMCInterface::GetHepMCGenEvent() const { return hepmcEvent; }
 
#endif