lineWidth.cxx

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/// \file
/// \ingroup tutorial_v7
///
/// \macro_code
///
/// \date 2018-03-18
/// \warning This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback
/// is welcome!
/// \author Iliana Betsou
 
#include "ROOT/RCanvas.hxx"
#include "ROOT/RColor.hxx"
#include "ROOT/RText.hxx"
#include "ROOT/RLine.hxx"
#include "ROOT/RPadPos.hxx"
#include <string>
 
void lineWidth() {
   using namespace ROOT::Experimental;
 
   auto canvas = RCanvas::Create("Canvas Title");
   double num = 0.3;
 
   for (int i=10; i>0; i--){
      num = num + 0.05;
 
      RPadPos pt(.3_normal, RPadLength::Normal(num));
      auto optts = canvas->Draw(RText(pt, std::to_string(i)));
      optts->SetSize(13).SetAlign(32).SetFont(52);
 
      RPadPos pl1(.32_normal, RPadLength::Normal(num));
      RPadPos pl2(.8_normal , RPadLength::Normal(num));
      auto optls = canvas->Draw(RLine(pl1, pl2));
      optls->SetWidth(i);
   }
 
   canvas->Show();
}