GLG4VertexGen_HEPEvt Class Reference

vertex generator that generates a primary vertex based on information from an ASCII stream. More...

#include <GLG4VertexGen.hh>

Inheritance diagram for GLG4VertexGen_HEPEvt:

List of all members.

Public Types
enum	{   kIonCodeOffset = 9800000, kPDGcodeModulus = 10000000, kISTHEP_ParticleForTracking = 1, kISTHEP_InformatonMin = 100,   kISTHEP_Max = 213 }
Public Member Functions
	GLG4VertexGen_HEPEvt (const char *arg_dbname)
virtual void	GeneratePrimaryVertex (G4Event *argEvent)
	Generates one or more particles with type, momentum, and optional time offset, spatial offset, and polarization, based on lines read from file via SetState().
virtual void	SetState (G4String newValues)
	Set source of HEPEVT ascii data for this generator, or print current source and help.
virtual G4String	GetState ()
void	Open (const char *argFilename)
void	GetDataLine (char *buffer, size_t size)
void	Close ()

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Detailed Description

vertex generator that generates a primary vertex based on information from an ASCII stream.

The ASCII stream contains information in a HEPEVT-like style.

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Member Function Documentation

void GLG4VertexGen_HEPEvt::GeneratePrimaryVertex (  G4Event *  argEvent  )  [virtual]

Generates one or more particles with type, momentum, and optional time offset, spatial offset, and polarization, based on lines read from file via SetState(). The file has the format NHEP ISTHEP IDHEP JDAHEP1 JDAHEP2 PHEP1 PHEP2 PHEP3 PHEP5 DT X Y Z PLX PLY PLZ ISTHEP IDHEP JDAHEP1 JDAHEP2 PHEP1 PHEP2 PHEP3 PHEP5 DT X Y Z PLX PLY PLZ ISTHEP IDHEP JDAHEP1 JDAHEP2 PHEP1 PHEP2 PHEP3 PHEP5 DT X Y Z PLX PLY PLZ ... [NHEP times] NHEP ISTHEP IDHEP JDAHEP1 JDAHEP2 PHEP1 PHEP2 PHEP3 PHEP5 DT X Y Z PLX PLY PLZ ISTHEP IDHEP JDAHEP1 JDAHEP2 PHEP1 PHEP2 PHEP3 PHEP5 DT X Y Z PLX PLY PLZ ISTHEP IDHEP JDAHEP1 JDAHEP2 PHEP1 PHEP2 PHEP3 PHEP5 DT X Y Z PLX PLY PLZ ... [NHEP times] where ISTHEP == status code IDHEP == HEP PDG code JDAHEP == first daughter JDAHEP == last daughter PHEP1 == px in GeV PHEP2 == py in GeV PHEP3 == pz in GeV PHEP5 == mass in GeV DT == vertex _delta_ time, in ns (*) X == x vertex in mm Y == y vertex in mm Z == z vertex in mm PLX == x polarization PLY == y polarization PLZ == z polarization PHEP5, DT, X, Y, Z, PLX, PLY, and PLZ are all optional. If omitted, the respective quantity is left unchanged. If DT is specified, the time offset of this and subsequent vertices is increased by DT: (*) note DT is a relative shift from the previous line! (This is because there is often a very large dynamic range of time offsets in certain types of events, e.g., in radioactive decay chains, and this convention allows such events to be represented using a reasonable number of significant digits.) If X, Y, Z, PLX, PLY, and/or PLZ is specified, then the values replace any previously specified. Implements GLG4VVertexGen.

void GLG4VertexGen_HEPEvt::SetState (  G4String  newValues  )  [virtual]

Set source of HEPEVT ascii data for this generator, or print current source and help. Format of string: either "filename" or "shell_command (arguments) |". Implements GLG4VVertexGen.

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The documentation for this class was generated from the following files:

• GLG4VertexGen.hh
• GLG4VertexGen.cc

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