# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'heatmaps.2.png'
unset key
set view map scale 1
set style data lines
set xtics border in scale 0,0 mirror norotate  autojustify
set ytics border in scale 0,0 mirror norotate  autojustify
set ztics border in scale 0,0 nomirror norotate  autojustify
unset cbtics
set rtics border in scale 0,0 nomirror norotate  autojustify
set title "Heat Map generated by 'plot' from a stream of XYZ values\nNB: Rows must be separated by blank lines!" 
set xrange [ -0.500000 : 4.50000 ] noreverse
set yrange [ -0.500000 : 4.50000 ] noreverse
set cblabel "Score" 
set cbrange [ 0.00000 : 5.00000 ] noreverse
set palette rgbformulae -7, 2, -7
NO_ANIMATION = 1
## Last datafile plotted: "$map2"
plot '$map2' using 2:1:3 with image