accessiblecolorschemes.C File Reference

Detailed Description

Choosing an appropriate color scheme is essential for making results easy to understand and interpret.

Factors like colorblindness and converting colors to grayscale for publications can impact accessibility. Furthermore, results should be aesthetically pleasing. The following three color schemes, recommended by M. Petroff in arXiv:2107.02270v2 and available on GitHub under the MIT License, meet these criteria.

 
void box(double x1, double y1, double x2, double y2, int col)
{
   auto b1 = new TBox(x1, y1, x2, y2);
   b1->SetFillColor(col);
   b1->Draw();
 
   TColor *c = gROOT->GetColor(col);
   auto tc = new TLatex((x2 + x1) / 2., 0.01 + (y2 + y1) / 2., Form("#splitline{%s}{%s}", c->GetName(), c->GetTitle()));
   tc->SetTextFont(42);
   tc->SetTextAlign(23);
   tc->SetTextSize(0.020);
   tc->Draw();
}
 
void accessiblecolorschemes()
{
   auto C = new TCanvas("C", "C", 600, 800);
   int c;
   double x, y;
   double w = 0.2;
   double h = 0.08;
   auto t = new TText();
   t->SetTextSize(0.025);
   t->SetTextFont(42);
 
   // 6-colors scheme
   x = 0.1;
   y = 0.1;
   t->DrawText(x, y - h / 2., "6-colors scheme");
   for (c = kP6Blue; c < kP6Blue + 6; c++) {
      box(x, y, x + w, y + h, c);
      y = y + h;
   }
 
   // 8-color scheme
   y = 0.1;
   x = 0.4;
   t->DrawText(x, y - h / 2., "8-colors scheme");
   for (c = kP8Blue; c < kP8Blue + 8; c++) {
      box(x, y, x + w, y + h, c);
      y = y + h;
   }
 
   // 10-color scheme
   y = 0.1;
   x = 0.7;
   t->DrawText(x, y - h / 2., "10-colors scheme");
   for (c = kP10Blue; c < kP10Blue + 10; c++) {
      box(x, y, x + w, y + h, c);
      y = y + h;
   }
}

Author

Olivier Couet

Definition in file accessiblecolorschemes.C.