# set terminal canvas rounded size 600,400 enhanced fsize 10 lw 1.6 fontscale 1 name "pm3d_4" jsdir "." # set output 'pm3d.4.js' set border 4095 front lt black linewidth 1.000 dashtype solid set samples 25, 25 set isosamples 20, 20 unset surface set style data lines set xyplane relative 0 set title "unset surface; set pm3d at st (surface and top)" set xlabel "x" set xrange [ -15.0000 : 15.0000 ] noreverse nowriteback set ylabel "y" set yrange [ -15.0000 : 15.0000 ] noreverse nowriteback set zrange [ -0.250000 : 1.00000 ] noreverse nowriteback set cblabel "colour gradient" set pm3d implicit at st splot sin(sqrt(x**2+y**2))/sqrt(x**2+y**2)