Geant4ParticleGenerator.h

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//==========================================================================
//  AIDA Detector description implementation 
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
// Author     : M.Frank
//
//==========================================================================
#ifndef DDG4_GEANT4PARTICLEGENERATOR_H
#define DDG4_GEANT4PARTICLEGENERATOR_H
 
// Framework include files
#include <DDG4/Geant4GeneratorAction.h>
#include <Math/Vector3D.h>
 
// Forward declarations
class G4ParticleDefinition;
 
namespace dd4hep {
 
  namespace sim {
 
    // Forward declarations
    class Geant4PrimaryInteraction;
 
 
    class Geant4ParticleGenerator: public Geant4GeneratorAction {
    public:
    protected:
      ROOT::Math::XYZVector m_direction;
      ROOT::Math::XYZVector m_position;
      std::string m_particleName;
      G4ParticleDefinition* m_particle;
      double m_energy;
      double m_momentumMin;
      double m_momentumMax;
      int m_multiplicity;
      int m_mask;
      
      virtual void getParticleMultiplicity(int& multiplicity) const;
 
      virtual void getVertexPosition(ROOT::Math::XYZVector& position) const;
 
 
      virtual void getParticleDirection(int num, ROOT::Math::XYZVector& direction, double& momentum) const;
      void getParticleMomentumUniform(double& momentum) const;
 
      virtual void printInteraction(int mask)  const;
      virtual void printInteraction(Geant4PrimaryInteraction* inter)  const;
    
 
    public:
      Geant4ParticleGenerator(Geant4Context* context, const std::string& name);
      virtual ~Geant4ParticleGenerator();
      virtual void operator()(G4Event* event)  override;
    };
  }    // End namespace sim
}      // End namespace dd4hep
#endif // DDG4_GEANT4PARTICLEGENERATOR_H