# set terminal png truecolor nocrop font arial 8 size 420,320 
# set output 'hidden2.2.png'
unset border
set dummy u,v
unset key
set parametric
set view 60, 30, 1.1, 1.33
set isosamples 50, 20
set noxtics
set noytics
set noztics
set title "Interlocking Tori - PM3D surface with no depth sorting" 
set urange [ -3.14159 : 3.14159 ] noreverse nowriteback
set vrange [ -3.14159 : 3.14159 ] noreverse nowriteback
set xrange [ * : * ] noreverse nowriteback  # (currently [-1.49975:2.49667] )
set yrange [ * : * ] noreverse nowriteback  # (currently [-1.49898:1.49898] )
set zrange [ * : * ] noreverse nowriteback  # (currently [-1.49898:1.49898] )
set cbrange [ * : * ] noreverse nowriteback  # (currently [-1.50000:1.50000] )
set pm3d scansbackward
set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front bdefault
f(x,y) = sin(-sqrt((x+5)**2+(y-7)**2)*0.5)
splot cos(u)+.5*cos(u)*cos(v),sin(u)+.5*sin(u)*cos(v),.5*sin(v) with pm3d,       1+cos(u)+.5*cos(u)*cos(v),.5*sin(v),sin(u)+.5*sin(u)*cos(v) with pm3d