#

# Exercise use of 'every' subsampling with image plots

# This was a regression in 5.0.3 

#

$Matrix << EOM

3 3 3 3 3 3 3

3 4 4 4 4 4 3

3 4 5 5 5 4 3

3 4 5 6 5 4 3

3 4 5 5 5 4 3

3 4 4 4 4 4 3

3 3 3 3 3 3 3

EOM

unset key

set ticscale 0

set border 0

set xrange [-0.5:6.5]

set yrange [-0.5:6.5]

set grid lt -1

set cbrange [3:6]

unset colorbox

set multiplot layout 2,2

set title "Full 7x7 matrix"

plot $Matrix matrix with image

set title "Subsample columns by every ::2::4"

plot $Matrix every ::2::4 matrix with image

set title "Subsample rows by every :::2::4"

plot $Matrix every :::2::4 matrix with image

set title "Sample alternate columns by every 2"

set xtics 2

set xrange [-1:7]

plot $Matrix every 2 matrix with image

unset multiplot

pause -1 "<cr> to continue"

reset