JPrintMaximum1D.cc

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

#include "TROOT.h"
#include "TFile.h"
#include "TClass.h"
#include "TApplication.h"
#include "TKey.h"
#include "TRegexp.h"
#include "TH2.h"
#include "TGraph.h"
#include "TProfile.h"

#include "JGizmo/JRootObjectID.hh"
#include "JGizmo/JGizmoToolkit.hh"

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

  
/**
 * \file
 * Auxiliary program to print (x) of the maximum of 1D ROOT objects.
 * The option <tt>-f</tt> corresponds to <tt><file name>:<object name></tt>.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;

  vector<JRootObjectID>   inputFile;
  int                     debug;
 
  try {

    JParser<> zap("Auxiliary program to print (x) of the maximum of 1D ROOT objects.");
    
    zap['f'] = make_field(inputFile,  "<input file>:<object name>");
    zap['d'] = make_field(debug)      = 0;
     
    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }


  for (vector<JRootObjectID>::const_iterator input = inputFile.begin(); input != inputFile.end(); ++input) {

    DEBUG("Input: " << *input << endl);

    TDirectory* dir = getDirectory(*input);

    if (dir == NULL) {
      ERROR("File: " << input->getFullFilename() << " not opened." << endl);
      continue;
    }

    const TRegexp regexp(input->getObjectName());

    TIter iter(dir->GetListOfKeys());

    for (TKey* key; (key = (TKey*) iter.Next()) != NULL; ) {

      const TString tag(key->GetName());

      DEBUG("Key: " << tag << " match = " << tag.Contains(regexp) << endl);
        
      // option match

      if (tag.Contains(regexp) && isTObject(key)) {

        TObject* object = key->ReadObj();

        double x    = 0.0; 
        double ymax = numeric_limits<double>::lowest();

        try {

          TH1& h1 = dynamic_cast<TH1&>(*object);

          for (Int_t ix = 1; ix <= h1.GetXaxis()->GetNbins(); ++ix) {

            double y = h1.GetBinContent(ix);

            if (y > ymax) {
              ymax = y;
              x    = h1.GetXaxis()->GetBinCenter(ix);
            }
          }
        }
        catch(exception&) {}

        try {

          TProfile& h1 = dynamic_cast<TProfile&>(*object);

          for (Int_t ix = 1; ix <= h1.GetXaxis()->GetNbins(); ++ix) {

            double y = h1.GetBinContent(ix);

            if (y > ymax) {
              ymax = y;
              x    = h1.GetXaxis()->GetBinCenter(ix);
            }
          }
        }
        catch(exception&) {}

        try {

          TGraph& g1 = dynamic_cast<TGraph&>(*object);

          for (Int_t i = 0; i != g1.GetN(); ++i) {
            if (g1.GetY()[i] > ymax) {
              ymax = g1.GetY()[i];
              x    = g1.GetX()[i];
            }
          }
        }
        catch(exception&) {}

        if (ymax != numeric_limits<double>::lowest()) {
          cout << setw(32) << left << key->GetName() << right << ' ' << SCIENTIFIC(15,5) << x << endl;
        }
      }
    }
  }
}