{
   auto c1 = new TCanvas("c1","c1",600,400);
   auto hcol1 = new TH2F("hcol1","Option COLor combined with POL",40,-4,4,40,-4,4);
   float px, py;
   for (Int_t i = 0; i < 25000; i++) {
      gRandom->Rannor(px,py);
      hcol1->Fill(px,py);
   }
   hcol1->Draw("COLZPOL");
}