Pythia6Generator Class Reference

#include <Pythia6Generator.h>

Inheritance diagram for Pythia6Generator:

Collaboration diagram for Pythia6Generator:

Public Member Functions
	Pythia6Generator ()
	Pythia6Generator (const char *fileName)
	~Pythia6Generator () override
Bool_t	ReadEvent (FairPrimaryGenerator *primGen) override
void	SetVerbose (Int_t verb)
Public Member Functions inherited from SHiP::Generator
	Generator ()
virtual	~Generator ()
virtual Bool_t	Init (const char *, int)=0
virtual Bool_t	Init (const char *)=0
virtual Bool_t	Init (const std::vector< std::string > &inFiles, int startNumber)
virtual Bool_t	Init (const std::vector< std::string > &inFiles)
virtual void	UseExternalFile (std::string x, Int_t i)
virtual void	UseExternalFile (std::vector< std::string > &inFiles, Int_t i)

Private Member Functions
void	CloseInput ()
	Verbose Level.

Private Attributes
const Char_t *	fFileName
FILE *	fInputFile
	Input file Name.
Int_t	fVerbose
	File.

Additional Inherited Members
Protected Attributes inherited from SHiP::Generator
std::optional< std::string >	fextFile
Int_t	firstEvent = 0

Detailed Description

Definition at line 93 of file Pythia6Generator.h.

Constructor & Destructor Documentation

Pythia6Generator() [1/2]

Pythia6Generator::Pythia6Generator

(

)

Default constructor without arguments should not be used.

Definition at line 21 of file Pythia6Generator.cxx.

{}

Pythia6Generator() [2/2]

Pythia6Generator::Pythia6Generator ( const char *  fileName )

explicit

Standard constructor.

Parameters

fileName

The input file name

Definition at line 25 of file Pythia6Generator.cxx.

                                                       {
  fFileName = fileName;
  fVerbose = 0;
  cout << "-I Pythia6Generator: Opening input file " << fileName << endl;
  fInputFile = fopen(fFileName, "r");
  if (fInputFile == nullptr)
    //  fInputFile = new ifstream(fFileName);
    //  if ( ! fInputFile->is_open() )
    Fatal("Pythia6Generator", "Cannot open input file.");
 
  // fPDG=TDatabasePDG::Instance();
}

~Pythia6Generator()

Pythia6Generator::~Pythia6Generator ( )

override

Destructor.

Definition at line 40 of file Pythia6Generator.cxx.

{ CloseInput(); }

Member Function Documentation

CloseInput()

void Pythia6Generator::CloseInput ( )

private

Verbose Level.

Private method CloseInput. Just for convenience. Closes the input file properly. Called from destructor and from ReadEvent.

Definition at line 103 of file Pythia6Generator.cxx.

                                  {
  if (fInputFile) {
    // if ( fInputFile->is_open() ) {
    {
      cout << "-I Pythia6Generator: Closing input file " << fFileName << endl;
      //  fInputFile->close();
 
      fclose(fInputFile);
    }
    delete fInputFile;
    fInputFile = nullptr;
  }
}

ReadEvent()

Bool_t Pythia6Generator::ReadEvent ( FairPrimaryGenerator *  primGen )

override

Reads on event from the input file and pushes the tracks onto the stack. Abstract method in base class.

Parameters

primGen

pointer to the CbmrimaryGenerator

Definition at line 44 of file Pythia6Generator.cxx.

                                                                {
  // Check for input file
  if (!fInputFile) {
    // if ( ! fInputFile->is_open() ) {
    cout << "-E Pythia6Generator: Input file not open!" << endl;
    return kFALSE;
  }
 
  // Define event variable to be read from file
  Int_t ntracks = 0, eventID = 0, ncols = 0;
 
  // Define track variables to be read from file
  Int_t nLev = 0, pdgID = 0, nM1 = -1, nM2 = -1, nDF = -1, nDL = -1;
  Float_t fPx = 0., fPy = 0., fPz = 0., fM = 0., fE = 0.;
  Float_t fVx = 0., fVy = 0., fVz = 0., fT = 0.;
 
  // Read event header line from input file
 
  ncols = fscanf(fInputFile, "%d\t%d", &eventID, &ntracks);
 
  if (ncols && ntracks > 0) {
    if (fVerbose > 0)
      cout << "Event number: " << eventID << "\tNtracks: " << ntracks << endl;
 
    for (Int_t ll = 0; ll < ntracks; ll++) {
      (void)fscanf(fInputFile, "%d %d %d %d %d %d %f %f %f %f %f %f %f %f %f",
                   &nLev, &pdgID, &nM1, &nM2, &nDF, &nDL, &fPx, &fPy, &fPz, &fE,
                   &fM, &fVx, &fVy, &fVz, &fT);
      if (fVerbose > 0)
        cout << nLev << "\t" << pdgID << "\t" << nM1 << "\t" << nM2 << "\t"
             << nDF << "\t" << nDL << "\t" << fPx << "\t" << fPy << "\t" << fPz
             << "\t" << fE << "\t" << fM << "\t" << fVx << "\t" << fVy << "\t"
             << fVz << "\t" << fT << endl;
      if (nLev == 1) primGen->AddTrack(pdgID, fPx, fPy, fPz, fVx, fVy, fVz);
    }
  } else {
    cout << "-I Pythia6Generator: End of input file reached " << endl;
    CloseInput();
    return kFALSE;
  }
 
  // If end of input file is reached : close it and abort run
  if (feof(fInputFile)) {
    cout << "-I Pythia6Generator: End of input file reached " << endl;
    CloseInput();
    return kFALSE;
  }
 
  /*
    cout << "-I Pythia6Generator: Event " << eventID << ",  vertex = ("
    << vx << "," << vy << "," << vz << ") cm,  multiplicity "
    << ntracks << endl;
  */
 
  return kTRUE;
}

SetVerbose()

void Pythia6Generator::SetVerbose ( Int_t  verb )

inline

Definition at line 114 of file Pythia6Generator.h.

{ fVerbose = verb; };

Member Data Documentation

fFileName

const Char_t* Pythia6Generator::fFileName

private

Definition at line 118 of file Pythia6Generator.h.

fInputFile

FILE* Pythia6Generator::fInputFile

private

Input file Name.

Definition at line 119 of file Pythia6Generator.h.

fVerbose

Int_t Pythia6Generator::fVerbose

private

File.

Definition at line 120 of file Pythia6Generator.h.

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

• shipgen/Pythia6Generator.h
• shipgen/Pythia6Generator.cxx