# set terminal pngcairo  transparent enhanced font "arial,9" fontscale 1.0 size 600, 400 
# set output 'param.8.png'
set border 4095 front linetype -1 linecolor -1 linewidth 1.000
set dummy u, v
set format x ""
set format y ""
set format x2 ""
set format y2 ""
set format z ""
set format cb ""
set format r ""
set label 1 "Decouple range of parametric axes u/v\nfrom that of display axes x/y/z" at screen 0.1, 0.9, 0 left norotate back nopoint
set parametric
set view 120, 300, 1, 1
set view  equal xyz
set samples 121, 61
set isosamples 121, 61
set ticslevel 0
set xtics border in scale 0,0 mirror norotate  autojustify
set ytics border in scale 0,0 mirror norotate  autojustify
set ztics border in scale 0,0 nomirror norotate  autojustify
set cbtics border in scale 0,0 mirror norotate  autojustify
set rtics axis in scale 0,0 nomirror norotate  autojustify
set urange [ -3.14159 : 3.14159 ] noreverse nowriteback
set vrange [ -1.57080 : 1.57080 ] noreverse nowriteback
set xrange [ -1.00000 : 1.00000 ] noreverse nowriteback
set yrange [ -1.00000 : 1.00000 ] noreverse nowriteback
set zrange [ -1.00000 : 1.00000 ] noreverse nowriteback
set pm3d depthorder
set palette cubehelix start 0.5 cycles 3 saturation 1
unset colorbox
xx(u, v) = cos(v) * cos(u)
yy(u, v) = cos(v) * sin(u)
zz(u, v) = sin(v)
color(u, v) = sin(2*u)+sin(2*v)
GPFUN_xx = "xx(u, v) = cos(v) * cos(u)"
GPFUN_yy = "yy(u, v) = cos(v) * sin(u)"
GPFUN_zz = "zz(u, v) = sin(v)"
GPFUN_color = "color(u, v) = sin(2*u)+sin(2*v)"
u = 0.0
splot "++" using (xx($1,$2)):(yy($1,$2)):(zz($1,$2)):(color($1,$2)) with pm3d notitle