{
  double width = 500.;
  double height = 250.;
  TCanvas* canvas = new TCanvas("canvas","resolution",2.*width,2.*height);

  canvas->SetFillColor(5);

  canvas->Divide(2,2,0.,0.);

  TVirtualPad* pad;

  pad = canvas->cd(1);
  pad->SetFillColor(1);

  pad = canvas->cd(2);
  pad->SetFillColor(2);

  pad = canvas->cd(3);
  pad->SetFillColor(3);

  pad = canvas->cd(4);
  pad->SetFillColor(4);

  canvas->Print("test.eps","eps");
}