Moving from histogram contour to Filled Tgraphs?

Dear all

I am trying to figure out how to
replace a 2D contour obtained from a 2D Histo
fHisContours->SetContour(2, Contour1minusCL);
fHisContours->Draw(“cont list”);

into a TGraph as in the Filled Graph (AF) example in:

Do you have any simple idea ?

thanks in advance

Please forget the previous posting …

sorry for noise