#
# zerrorfill with and without depth-sorting
#
set yrange [0.5:5.5]
set zrange [1:*]
set xyplane at 1
set log z
set key opaque box height 1 at screen .9, .8
set border 127
set grid z

set title "splot with zerrorfill (no depth sorting)"
splot for [k=1:5] 'silver.dat' using 1:(k):2:3 with zerror lt black fc lt k title "k = ".k


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set title "splot with zerrorfill (set pm3d depthorder)"
set pm3d depthorder
set style fill transparent solid 0.5
splot for [k=1:5] 'silver.dat' using 1:(k):2:3 with zerror lt black fc lt k title "k = ".k


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#
# Reproduce surface1.dem plot #16
# using zerrorfill instead of hidden3d parametric surfaces
#
set format z "%.1f" 
unset key
set view 66, 200, 1, 1
unset xtics
unset ytics
set title "fence plot constructed with zerrorfill" 
set xlabel "X axis"  rotate parallel 
set ylabel "Y axis" rotate parallel
set pm3d depthorder
sinc(u,v) = sin(sqrt(u**2+v**2)) / sqrt(u**2+v**2)

set style fill  transparent solid 0.75 noborder
splot for [i=-5:4][y=-50:50:5] '+' using (i):($1/100.):(-1):(-1):(sinc($1/10., 1.+i)) with zerrorfill


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