// This file is part of the ACTS project.

//

// Copyright (C) 2016 CERN for the benefit of the ACTS project

//

// This Source Code Form is subject to the terms of the Mozilla Public

// License, v. 2.0. If a copy of the MPL was not distributed with this

// file, You can obtain one at https://mozilla.org/MPL/2.0/.

/*

* compareHitHistograms.C

*

* Created on: 15 Dec 2016

* Author: jhrdinka

*/

#include <tuple>

#include "TFile.h"

#include "TH1F.h"

#include "TROOT.h"

#include "TTree.h"

// This root script draws all histograms given in a vector into the same Canvas.

// The information should be handed over as a vector of a tuple.

// The first entry should be the Name of the file, where the histogram can be

// found. The second entry should be the name of the histogram. The third entry

// is the color in which the histogram should be printed.

void

compareHitHistograms(

std::vector<std::tuple<std::string, std::string, int>> hist)

{

for (auto& i : hist) {

std::cout << "Opening file: " << std::get<0>(i).c_str() << std::endl;

TFile inputFile(std::get<0>(i).c_str());

TDirectory dir = outputFile.mkdir(layerName.c_str());

dir->cd();

std::cout << "Comparing Histogram: " << std::get<1>(i).c_str() << std::endl;

TH2F* h = (TH2F*)inputFile.Get(std::get<1>(i).c_str());

h->SetMarkerColor(std::get<2>(i));

h->Draw("same");

h->SetDirectory(0);

inputFile.Close();

}

}