TGenerator

class TGenerator : public TNamed

    public:

              TGenerator TGenerator()
              TGenerator TGenerator(const char* name, const char* title = Generator class)
              TGenerator TGenerator(TGenerator&)
            virtual void ~TGenerator()
            virtual void Browse(TBrowser* b)
          static TClass* Class()
           virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
            virtual void Draw(Option_t* option)
            virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
      virtual TObjArray* GetListOfParticles() const
                   Int_t GetNumberOfParticles() const
      virtual TParticle* GetParticle(Int_t i) const
      virtual TObjArray* GetPrimaries(Option_t* option)
                 Float_t GetPtCut() const
           virtual Int_t ImportParticles(TClonesArray* particles, Option_t* option)
      virtual TObjArray* ImportParticles(Option_t* option)
         virtual TClass* IsA() const
            virtual void Paint(Option_t* option)
            virtual void SetPtCut(Float_t ptcut = 0)
            virtual void SetViewRadius(Float_t rbox = 1000)
            virtual void SetViewRange(Float_t xmin = -10000, Float_t ymin = -10000, Float_t zmin = -10000, Float_t xmax = 10000, Float_t ymax = 10000, Float_t zmax = 10000)
            virtual void ShowMembers(TMemberInspector& insp, char* parent)
            virtual void ShowNeutrons(Bool_t show = 1)
            virtual void Streamer(TBuffer& b)
                    void StreamerNVirtual(TBuffer& b)

  Data Members

    protected:

         Float_t fPtCut         !Pt cut. Do not show primaries below
          Bool_t fShowNeutrons  !display neutrons if true
      TObjArray* fParticles     ->static container of the primary particles

See also

TPythia, TVenus

Class Description

                                                                      
 TGenerator                                                            
                                                                      
 Is an abstact base class, that defines the interface of ROOT and the 
 various event generators. Every event generator should inherit from  
 TGenerator or its subclasses.                                         
                                                                      
 Every class inherited from TGenerator knows already the interface to  
 the /HEPEVT/ common block. So in the event creation of the various   
 generators, the /HEPEVT/ common block should be filled               
 The ImportParticles method then parses the result from the event        
 generators into a TClonesArray of TParticle objects.                   
                                                                      

  Event generator default constructor

  Event generator default destructor

  Default primary creation method. It reads the /HEPEVT/ common block which
  has been filled by the GenerateEvent method. If the event generator does
  not use the HEPEVT common block, This routine has to be overloaded by
  the subclasses.
  The default action is to store only the stable particles (ISTHEP = 1)
  This can be demanded explicitly by setting the option = "Final"
  If the option = "All", all the particles are stored.

  Default primary creation method. It reads the /HEPEVT/ common block which
  has been filled by the GenerateEvent method. If the event generator does
  not use the HEPEVT common block, This routine has to be overloaded by
  the subclasses.
  The function loops on the generated particles and store them in
  the TClonesArray pointed by the argument particles.
  The default action is to store only the stable particles (ISTHEP = 1)
  This can be demanded explicitly by setting the option = "Final"
  If the option = "All", all the particles are stored.

*-*-*-*-*-*-*-*Compute distance from point px,py to objects in event*-*-*-*
*-*            =====================================================
*-*

  Insert one event in the pad list

*-*-*-*-*-*-*-*-*-*-*Execute action corresponding to one event*-*-*-*
*-*                  =========================================

  Returns pointer to primary number i;

  Paint one event

  Set Pt threshold below which primaries are not drawn

  Set lower and upper values of the view range

  Set lower and upper values of the view range

  Set flag to display or not neutrons

Inline Functions

         TGenerator TGenerator(const char* name, const char* title = Generator class)
              Int_t GetNumberOfParticles() const
         TObjArray* GetListOfParticles() const
         TObjArray* GetPrimaries(Option_t* option)
            Float_t GetPtCut() const
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
         TGenerator TGenerator(TGenerator&)