# ruby-root testsuite
#
# Original $ROOT/tutorials/surfaces.C using ruby-root.
#
# 15/12/2004    --elathan


c1 = TCanvas.new("c1","Surfaces Drawing Options",200,10,700,900)
c1.SetFillColor(42)
   
title = TPaveText.new(0.2,0.96,0.8,0.995)
title.SetFillColor(33)
title.AddText(0, 0, "Examples of Surface options")
title.Draw

pad1 = TPad.new("pad1","Gouraud shading",0.03,0.50,0.98,0.95,21)
pad2 = TPad.new("pad2","Color mesh",0.03,0.02,0.98,0.48,21)
pad1.Draw
pad2.Draw
   
# We generate a 2-D function
f2 = TF2.new("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")
gApplication.Run