# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'zerror.2.png'
set style fill   solid 1.00 noborder
set format z "%.1f" 
unset key
set view 66, 200, 1, 1
set xyplane relative 0
unset xtics
unset ytics
set title "fence plot constructed with zerrorfill" 
set xlabel "X axis" 
set xlabel  font "" textcolor lt -1 rotate parallel
set ylabel "Y axis" 
set ylabel  offset character -4, 0, 0 font "" textcolor lt -1 rotate parallel
set pm3d depthorder base
sinc(u,v) = sin(sqrt(u**2+v**2)) / sqrt(u**2+v**2)
NO_ANIMATION = 1
## Last datafile plotted: "+"
splot for [i=-5:4][y=-50:50:5] '+' using (i):($1/100.):(-1):(-1):(sinc($1/10., 1.+i)) with zerrorfill