fitpanel.cxx

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/// \file
/// \ingroup tutorial_v7
///
/// \macro_code
///
/// \date 2015-03-22
/// \warning This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback is welcome!
/// \author Axel Naumann <axel@cern.ch>
 
/*************************************************************************
 * 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.             *
 *************************************************************************/
 
#include "ROOT/RHist.hxx"
#include "ROOT/RCanvas.hxx"
#include "ROOT/RFitPanel.hxx"
#include "ROOT/TDirectory.hxx"
 
void fitpanel0() {
 
  using namespace ROOT::Experimental;
 
  // Create the histogram.
  RAxisConfig xaxis(10, 0., 10.);
  auto pHist = std::make_shared<RH1D>(xaxis);
 
  // Fill a few points.
  pHist->Fill(1);
  pHist->Fill(2);
  pHist->Fill(2);
  pHist->Fill(3);
 
 
  auto panel = std::make_shared<RFitPanel>("FitPanel Title");
  panel->Show();
 
  // Register the histogram with ROOT: now it lives even after draw() ends.
  ROOT::Experimental::TDirectory::Heap().Add("fitpanel", panel);
 
 
  // Create a canvas to be displayed.
  // auto canvas = Experimental::RCanvas::Create("Canvas Title");
  // canvas->Draw(pHist)->SetLineColor(Experimental::TColor::kRed);
  // canvas->Draw(pHist2)->SetLineColor(Experimental::TColor::kBlue);
 
  // canvas->Show();
}
 
void fitpanel() {
 
   using namespace ROOT::Experimental;
 
   // TODO - also keep axis correctly in the help
   auto xaxis = std::make_shared<RAxisConfig>(10, 0., 10.);
   // Create the histogram.
   auto pHist = std::make_shared<RH1D>(*xaxis.get());
 
   // Fill a few points.
   pHist->Fill(1);
   pHist->Fill(2);
   pHist->Fill(2);
   pHist->Fill(3);
 
   auto canvas = RCanvas::Create("Canvas Title");
   canvas->Draw(pHist)->SetLineColor(RColor::kRed);
 
   canvas->Show();
   canvas->Update(); // need to ensure canvas is drawn
 
   auto panel = std::make_shared<RFitPanel>("FitPanel Title");
 
   ROOT::Experimental::TDirectory::Heap().Add("fitpanel", panel);
   ROOT::Experimental::TDirectory::Heap().Add("firsthisto", pHist);
   ROOT::Experimental::TDirectory::Heap().Add("firstaxis", xaxis);
 
   // TODO: how combine there methods together
   // here std::shread_ptr<> on both sides
 
   panel->UseCanvas(canvas);
 
   canvas->AddPanel(panel);
}