How to draw surf1 but with a contour view on the top

ROOT
1

void gr2d() {
gStyle->SetPalette(1);
TCanvas *c = new TCanvas(“c”,“Graph2D example”,1);

TGraph2D *gr = new TGraph2D();
gr->SetPoint(0,1,1,5);
gr->SetPoint(1,1,2,4);
gr->SetPoint(2,1,3,5);
gr->SetPoint(3,2,1,4);
gr->SetPoint(4,2,2,7);
gr->SetPoint(5,2,3,4);
gr->SetPoint(6,3,1,5);
gr->SetPoint(7,3,2,4);
gr->SetPoint(8,3,3,5);
[color=blue] gr->Draw(“surf1”);
gr->Draw(“same cont1”); [/color]

}
i want to draw [size=150][color=blue]surf1 but with a contour view on the top [/color][/size],why can’t work?
Thanks!

2

Do:

gr->Draw("surf3"); or

gr->Draw("surf1"); gr->Draw("surf3 same");
Rene

3

[quote=“brun”]Do:

gr->Draw("surf3"); or

gr->Draw("surf1"); gr->Draw("surf3 same");
Rene[/quote]

Code:
gr->Draw(“surf1”);
gr->Draw(“surf3 same”);
works!
Sorry , it can’t work until tell me.
I test it for 5 hours.
Now it work.
Strange!