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gnuplot/demo/fenceplot.dem at master · gnuplot/gnuplot · GitHub
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#
# Two different methods to construct a fence plot
#
# 1) Each fence is a separate parametric surface
# surface appearance is controlled by "set hidden3d"
#
set title "fence plot constructed with separate parametric surfaces"
sinc(u,v) = sin(sqrt(u**2+v**2)) / sqrt(u**2+v**2)
set xrange [-5:5]; set yrange [-5:5]
set xtics offset 0,-1
set ytics offset 0,-1
set zrange [-1:1]
set format z "%.1f"
set arrow 1 from 5,-5,-1.2 to 5,5,-1.2 lt -1
set label 1 "increasing v" at 6,0,-1
set arrow 2 from 5,6,-1 to 5,5,-1 lt -1
set label 2 "u=0" at 5,6.5,-1
set arrow 3 from 5,6,sinc(5,5) to 5,5,sinc(5,5) lt -1
set label 3 "u=1" at 5,6.5,sinc(5,5)
set parametric
set hidden3d offset 0 # front/back coloring makes no sense for fenceplot #
set isosamples 2,33
array U[10]
u=-5; du=(4.99-(-4.99))/9
do for [i=1:10] { U[i] = u + i * du }
set view 70, 25
set urange [0:1]
set vrange [-4.99:4.99]
splot for [i=1:10] U[i], v, (u<0.5) ? -1 : sinc(U[i],v) notitle
pause -1 "Hit return to continue"
unset hidden3d
#
# 2) Each fence is a curve drawn with zerrorfill
# surface appearance is controlled by "set pm3d" and "set style fill"
# If depth-cueing is needed, use "set pm3d depthorder"
#
set format z "%.1f"
unset key
unset arrow
unset label
set view 70,25
unset xtics
unset ytics
set title "fence plot constructed with zerrorfill"
set zrange [-1:1]
set arrow 1 from 5,-.5,-1.2 to 5,.5,-1.2 lt -1
set label 1 "sampling on Y" at 6,-0.1,-1
set xlabel "X axis" rotate parallel
set xrange [-5:4]
set yrange [-0.5:0.5]
sinc(u,v) = sin(sqrt(u**2+v**2)) / sqrt(u**2+v**2)
set style fill solid 0.75 noborder
splot for [x=-4:4][y=-50:50:3] '+' using (x):($1/100.):(-1):(-1):(sinc($1/10., 1.+x)) with zerrorfill
pause -1 "Hit return to continue"
reset
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