# Compare hidden3d and pm3d methods for handling hidden surface removal unset border set dummy u, v unset key set view 225, 206, 1.25, 0.50 unset xtics unset ytics unset ztics unset colorbox set parametric set dummy u,v set urange [ -3.14159 : 3.14159 ] noreverse nowriteback set vrange [ 0.250000 : 3.14159 ] noreverse nowriteback set isosamples 50, 20 set multiplot layout 1,2 margins .05,.95,.2,.8 spacing 0.05 set title "hidden3d 2-color surface" set hidden3d back offset 1 splot (cos(u)+.5*cos(u)*cos(v))*(1.+sin(11.*u)/10.), \ (sin(u)+.5*sin(u)*cos(v))*(1.+sin(11.*u)/10.), \ 0.5*sin(v) with lines lt 3 set title "pm3d 2-color surface" set pm3d depthorder set pm3d interpolate 1,1 # border linecolor rgb "#a0a0f0" linewidth 0.500 set pm3d lighting primary 0.33 specular 0.2 spec2 0.3 set isosamples 200,200 splot (cos(u)+.5*cos(u)*cos(v))*(1.+sin(11.*u)/10.), \ (sin(u)+.5*sin(u)*cos(v))*(1.+sin(11.*u)/10.), \ 0.5*sin(v) with pm3d fc ls 3 unset multiplot pause -1 "<return> to continue" reset
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