# set terminal pngcairo transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 # set output 'hidden.1.png' set samples 20, 20 set isosamples 20, 20 set hidden3d back offset 1 trianglepattern 3 undefined 1 altdiagonal bentover set style data lines set title "Hidden line removal of explicit surfaces" set xrange [ -3.00000 : 3.00000 ] noreverse nowriteback set x2range [ * : * ] noreverse writeback set yrange [ -2.00000 : 2.00000 ] noreverse nowriteback set y2range [ * : * ] noreverse writeback set zrange [ * : * ] noreverse writeback set cbrange [ * : * ] noreverse writeback set rrange [ * : * ] noreverse writeback set colorbox vertical origin screen 0.9, 0.2 size screen 0.05, 0.6 front noinvert bdefault NO_ANIMATION = 1 splot 1 / (x*x + y*y + 1)