# Surfaces drawing options

    {
       //
       // To see the output of this macro, click  here
       //
       gROOT->Reset();
       c1 = new TCanvas("c1","Surfaces Drawing Options",200,10,700,900);
       c1->SetFillColor(42);
       gStyle->SetFrameFillColor(42);
       title = new TPaveText(.2,0.96,.8,.995);
       title->SetFillColor(33);
       title->AddText("Examples of Surface options");
       title->Draw();

       pad1 = new TPad("pad1","Gouraud shading",0.03,0.50,0.98,0.95,21);
       pad2 = new TPad("pad2","Color mesh",0.03,0.02,0.98,0.48,21);
       pad1->Draw();
       pad2->Draw();
       //
       // We generate a 2-D function
       TF2 *f2 = new TF2("f2","x^2 + y^2 - x^3 -8*x*y^4",-1,1.2,-1.5,1.5);
       f2->SetContour(48);
       f2->SetFillColor(45);

       // Draw this function in pad1 with Gouraud shading option
       pad1->cd();
       pad1->SetPhi(-80);
       pad1->SetLogz();
       f2->Draw("surf4");

       // Draw this function in pad2 with color mesh option
       pad2->cd();
       pad2->SetTheta(25);
       pad2->SetPhi(-110);
       pad2->SetLogz();
       f2->Draw("surf1");

    }