void th2col()
{
 TH2F *h = new TH2F("","",2,0.,2.,2.,0.,2.);
 h->Fill(0.5, 0.5, 0.009);
 h->Fill(0.5, 1.5, 0.01);
 h->Fill(1.5, 1.5, 0.1);
 h->Fill(1.5, 0.5, 0.03);
 h->Draw("colz text");
}