# set terminal png transparent nocrop enhanced font arial 8 size 420,320 # set output 'pm3dcolors.18.png' set view map set samples 101, 101 set isosamples 2, 2 set style data pm3d set style function pm3d set xtics border in scale 1,0.5 mirror norotate offset character 0, 0, 0 2 set noytics set noztics set title "set palette functions sqrt(gray), gray**3, sin(gray*2*pi) <--> 7,5,15" set xrange [ -10.0000 : 10.0000 ] noreverse nowriteback set yrange [ 0.00000 : 1.00000 ] noreverse nowriteback set cbrange [ -10.0000 : 10.0000 ] noreverse nowriteback set pm3d implicit at b set palette functions sqrt(gray), gray**3, sin(gray*2*pi) splot x