TGeant4/TG4ParticlesManager.h

   1 // $Id$
   2 // Category: physics
   3 //
   4 // This class provides mapping between TDatabasePDG
   5 // and Geant4 particles.
   6
   7 #ifndef TG4_PARTICLES_MANAGER_H
   8 #define TG4_PARTICLES_MANAGER_H
   9
  10 #include "TG4Globals.h"
  11 #include "TG4NameMap.h"
  12 #include "TG4IntMap.h"
  13
  14 #include <globals.hh>
  15 #include <G4ThreeVector.hh>
  16
  17 #include <Rtypes.h>
  18
  19 class G4DynamicParticle;
  20 class G4ParticleDefinition;
  21
  22 class TParticle;
  23 class TClonesArray;
  24
  25 class TG4ParticlesManager
  26 {
  27   public:
  28     TG4ParticlesManager();
  29     // --> protected
  30     // TG4ParticlesManager(const TG4ParticlesManager& right);
  31     virtual ~TG4ParticlesManager();
  32
  33     // static access method
  34     static TG4ParticlesManager* Instance();
  35
  36     // methods
  37     void MapParticles();
  38
  39     // get methods
  40          // for G4 particle types
  41     G4int GetPDGEncodingFast(G4ParticleDefinition* particle);
  42
  43          // for Root particle types;
  44     TParticle* GetParticle(const TClonesArray* particles, G4int index) const;
  45     G4ParticleDefinition* GetParticleDefinition(
  46                            const TParticle* particle) const;
  47     G4DynamicParticle* CreateDynamicParticle(
  48                            const TParticle* particle) const;
  49     G4ThreeVector GetParticlePosition(
  50                            const TParticle* particle) const;
  51     G4ThreeVector GetParticleMomentum(
  52                            const TParticle* particle) const;
  53
  54   protected:
  55     TG4ParticlesManager(const TG4ParticlesManager& right);
  56
  57     // operators
  58     TG4ParticlesManager& operator=(const TG4ParticlesManager& right);
  59
  60   private:
  61     // methods
  62     G4int GetPDGEncoding(G4ParticleDefinition* particle);
  63     G4int GetPDGEncoding(G4String particleName);
  64
  65     // static data members
  66     static TG4ParticlesManager*  fgInstance; //this instance
  67
  68     // data members
  69     TG4NameMap  fParticleNameMap;  //the mapping between G4 particle names
  70                                    //and TDatabasePDG names
  71     TG4IntMap   fParticlePDGMap;   //the mapping between G4 particle names
  72                                    //and TDatabasePDG codes
  73 };
  74
  75 // inline methods
  76
  77 inline TG4ParticlesManager* TG4ParticlesManager::Instance()
  78 { return fgInstance; }
  79
  80 #endif //TG4_PARTICLES_MANAGER_H
  81