JChargeProbability.cc

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#include <string>
#include <iostream>
#include <iomanip>

#include "TROOT.h"
#include "TFile.h"
#include "TH1D.h"

#include "JDetector/JPMTParameters.hh"
#include "JDetector/JPMTAnalogueSignalProcessor.hh"

#include "Jeep/JPrint.hh"
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


/**
 * \file
 *
 * Example program to histogram charge probability distributions.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;

  string            outputFile;
  JPMTParameters    parameters;
  double            NPE;
  int               debug;

  try {

    JProperties properties = parameters.getProperties();

    JParser<> zap("Example program to histogram charge probability distributions.");

    zap['o'] = make_field(outputFile)       = "charge.root";
    zap['P'] = make_field(properties)       = JPARSER::initialised();
    zap['N'] = make_field(NPE);
    zap['d'] = make_field(debug)            = 0;

    zap(argc, argv);

  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }

  const JPMTAnalogueSignalProcessor cpu(parameters);

  TFile out(outputFile.c_str(), "recreate");


  const double xmin = max(0.0, NPE - 5.0 * sqrt(NPE));
  const double xmax = NPE + 5.0 * sqrt(NPE) + 2.5;
  const int    nx   = (int) ((xmax - xmin) / 0.05);

  TH1D h0("h0", NULL, nx, xmin, xmax);

  for (int i = 1; i <= h0.GetNbinsX(); ++i) {

    const double x = h0.GetBinCenter(i);
    const double y = getChargeProbability(cpu, x, NPE);

    h0.SetBinContent(i, y);
  }

  out.Write();
  out.Close();
}