JGeanx.cc

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#include <string>
#include <iostream>
 
#include "TROOT.h"
#include "TFile.h"
#include "TH1D.h"
 
#include "JPhysics/JGeanx.hh"
 
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"
 
 
/**
 * \file
 *
 * Example program to histogram photon emission profile from showers using JPHYSICS::JGeanx.
 * \author mdejong
 */
int main(int argc, char* argv[])
{
  using namespace std;
 
  string  outputFile;
  int     debug;
 
  try {
 
    JParser<> zap("Example program to histogram photon emission profile from showers.");
 
    zap['o'] = make_field(outputFile) = "geanx.root";
    zap['d'] = make_field(debug)      = 2;
 
    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }
 
  using namespace JPP;
 
 
  TFile out(outputFile.c_str(), "recreate");
 
  TH1D h1("Probability", NULL, 1000, -1.0, +1.0);
  TH1D h2("Integral",    NULL, 1000, -1.0, +1.0);
 
  for(int i = 1; i <= h1.GetNbinsX(); ++i) {
 
    const double x = h1.GetBinCenter(i);
    
    h1.SetBinContent(i, geanx(x));
    h2.SetBinContent(i, geanx(-1.0,x));
  }
 
  h1.Sumw2(kFALSE);
  h2.Sumw2(kFALSE);
 
  out.Write();
  out.Close();
}