th2polyHoneycomb.C File Reference

This tutorial illustrates how to create an histogram with hexagonal bins (TH2Poly), fill it and draw it using GL. More...

Go to the source code of this file.

Detailed Description

This tutorial illustrates how to create an histogram with hexagonal bins (TH2Poly), fill it and draw it using GL.

void th2polyHoneycomb(){
   gStyle->SetCanvasPreferGL(true);
   TH2Poly *hc = new TH2Poly();
   hc->Honeycomb(0,0,.1,25,25);
   gStyle->SetPalette(1);

   TRandom ran;
   for (int i = 0; i<30000; i++) {
      hc->Fill(ran.Gaus(2.,1), ran.Gaus(2.,1));
   }

   hc->Draw("gllego");
}

Author

Olivier Couet

Definition in file th2polyHoneycomb.C.