I small question: during a TH2D manipulation, I wonder how to mix the Lego2 + Surf5 plot to obtain a lego plot and a contour with TLines and TEllipses on it (like in figure)?
Could anybody give me a hint of doing it, I think I just miss a necesary call of the “Up” plane in a 3D plot.
I think that the “surf3” option is very close to what you need:
Thanks for the reply, my question is how to draw something (lines, circles) in the upper part of the SURF3 panel?
You can do:
root  hpxpy->Draw("surf3")
root  hpxpy->Draw("contsame")
But the contour will be drawn on the surface (the hpxpy histogram is produced by $ROOTSYS/tutorials/hsimple.C). So there is not direct way to produce what you are looking for.