doc/v614/draw__th1_8cxx.html

/*************************************************************************
 * Copyright (C) 1995-2015, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
R__LOAD_LIBRARY(libROOTGpadv7);
#include "ROOT/THist.hxx"
#include "ROOT/TCanvas.hxx"
void draw_th1() {
   using namespace ROOT;
   // Create the histogram.
   Experimental::TAxisConfig xaxis(10, 0., 10.);
   auto pHist = std::make_shared<Experimental::TH1D>(xaxis);
   auto pHist2 = std::make_shared<Experimental::TH1D>(xaxis);
   // Fill a few points.
   pHist->Fill(1);
   pHist->Fill(2);
   pHist->Fill(2);
   pHist->Fill(3);
   pHist2->Fill(5);
   pHist2->Fill(6);
   pHist2->Fill(6);
   pHist2->Fill(7);
   // Create a canvas to be displayed.
   auto canvas = Experimental::TCanvas::Create("Canvas Title");
   canvas->Draw(pHist)->SetLineColor(Experimental::TColor::kRed);
   canvas->Draw(pHist2)->SetLineColor(Experimental::TColor::kBlue);
   canvas->Show();
   canvas->SaveAs("th1.png");
}