set terminal postscript eps color solid
set output "valueplot-flowlines.eps"
set xlabel "arc length distance from saddle [pixels]"
set ylabel "boundary indicator value"
set size 0.8
set arrow from 0,0 to 0,15 nohead lt 0
set label " saddle pos" at 0,14 left
set xrange [-5:5]
plot \
	"valueplot-flowlines_1.dat" with lp ps 0.7 title 'undesired, noise-induced edge', \
	"valueplot-flowlines_2.dat" with lp ps 0.7 title 'real, high-contrast image edge', \
	"valueplot-flowlines_3.dat" with lp ps 0.7 title 'real, low-contrast image edge', \
	"valueplot-flowlines_4.dat" with lp ps 0.7 title 'streamer (converging to real edges)'