JPrintLargestOverlay.cc File Reference

Example program to find the largest event in a file. More...

#include <string>
#include <iostream>
#include <iomanip>
#include <limits>
#include <set>
#include "TROOT.h"
#include "TFile.h"
#include "TH1D.h"
#include "JDAQ/JDAQEventIO.hh"
#include "JSupport/JMultipleFileScanner.hh"
#include "JSupport/JSupport.hh"
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"

Go to the source code of this file.

Functions
int	main (int argc, char **argv)

Detailed Description

Example program to find the largest event in a file.

Author

lnauta

Definition in file JPrintLargestOverlay.cc.

Function Documentation

int main	(	int	argc,
		char **	argv
	)

Definition at line 27 of file JPrintLargestOverlay.cc.

{
  using namespace std;
  using namespace JPP;
  using namespace KM3NETDAQ;

  JMultipleFileScanner<JDAQEvent> inputFile;
  int             debug;

  try { 

    JParser<> zap("Example program to find largest event in data.");

    zap['f'] = make_field(inputFile);
    zap['d'] = make_field(debug)               = 1;

    zap(argc, argv);
  }
  catch(const exception& error) {
    FATAL(error.what() << endl);
  }


  cout.tie(&cerr);

  int overlay = 0;
  int treeIndex = 0;

  while (inputFile.hasNext()) {

    STATUS("event: " << setw(10) << inputFile.getCounter() << '\r'); DEBUG(endl);

    JDAQEvent* event = inputFile.next();

    int currentOverlay = event->getOverlays();

    if (currentOverlay > overlay) {
      overlay = currentOverlay;
      treeIndex = inputFile.getCounter();
    }

  }
  STATUS(endl);

  NOTICE("Largest overlay is at tree index " << treeIndex << " with overlay of " << overlay);
  NOTICE("In JConvert use the tree index " << treeIndex-1 << " to fetch the proper event.");

}