G4PrimaryTransformer.hh

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// $Id: G4PrimaryTransformer.hh 72252 2013-07-12 09:04:11Z gcosmo $
//

#ifndef G4PromaryTransformer_h 
#define G4PromaryTransformer_h 1

#include "G4TrackVector.hh"
#include "G4ParticleTable.hh"
#include "globals.hh"
class G4Event;
class G4PrimaryVertex;
#include "G4PrimaryParticle.hh"
#include "G4DynamicParticle.hh"

// class description:
//
//  This class is exclusively used by G4EventManager for the conversion
// from G4PrimaryVertex/G4PrimaryParticle to G4DynamicParticle/G4Track.
//

class G4PrimaryTransformer
{
  public:
    G4PrimaryTransformer();
    virtual ~G4PrimaryTransformer();
    
    G4TrackVector* GimmePrimaries(G4Event* anEvent, G4int trackIDCounter=0);
    void CheckUnknown();

  protected:
    G4TrackVector TV;
    G4ParticleTable* particleTable;
    G4int verboseLevel;
    G4int trackID;

    G4ParticleDefinition* unknown;
    G4bool unknownParticleDefined;
    G4ParticleDefinition* opticalphoton;
    G4bool opticalphotonDefined;

    G4int nWarn;

  public:
    inline void SetVerboseLevel(G4int vl)
    { verboseLevel = vl; };

  public: //with description
    void SetUnknnownParticleDefined(G4bool vl);
    // By invoking this Set method, the user can alter the treatment of unknown
    // particle. The ideal place to invoke this method is in the BeginOfRunAction.

    inline G4bool GetUnknownParticleDefined() const
    { return unknownParticleDefined; }

  protected:
    void GenerateTracks(G4PrimaryVertex* primaryVertex);
    void GenerateSingleTrack(G4PrimaryParticle* primaryParticle,
              G4double x0,G4double y0,G4double z0,G4double t0,G4double wv);
    void SetDecayProducts(G4PrimaryParticle* mother,
                            G4DynamicParticle* motherDP);
    G4bool CheckDynamicParticle(G4DynamicParticle*DP);

  protected: //with description
  // Following two virtual methods are provided to customize the use of PrimaryTransformer
  // for particle types exotic to Geant4.

    virtual G4ParticleDefinition* GetDefinition(G4PrimaryParticle*pp);
    // Return appropriate G4ParticleDefinition w.r.t. the primary particle. 
    // If NULL is returned, the particle will not be treated as a track, but its daughters
    // will be examined in case it has "pre-assigned decay products".

    virtual G4bool IsGoodForTrack(G4ParticleDefinition*pd);
    // Return true if a primary particle should be converted into a track.
    // By default, all particles of non-shortlived and shortlived with valid decay
    // tables are converted.
};

#endif