# set terminal pngcairo transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 # set output 'hidden.3.png' set style increment default set view 70, 45, 1, 1 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 [ -3.00000 : 3.00000 ] noreverse nowriteback set y2range [ * : * ] noreverse writeback set zrange [ * : * ] noreverse writeback set cbrange [ * : * ] noreverse writeback set rrange [ * : * ] noreverse writeback splot sin(x*x + y*y) / (x*x + y*y)