# set terminal canvas  rounded size 600,400 enhanced fsize 10 lw 1.6 fontscale 1 name "chi_shapes_1" jsdir "."
# set output 'chi_shapes.1.js'
unset border
set style fill  transparent solid 0.10 noborder
unset key
set style line 2  linecolor rgb "forest-green"  linewidth 1.000 dashtype solid pointtype 7 pointsize 0.500
set offsets graph 0, 0, graph 0.1, graph 0.1
set style data lines
unset xtics
unset ytics
unset ztics
unset cbtics
unset rtics
set title "chi_length = 16.0" 
set title  offset character 0, -2, 0 font "" textcolor lt -1 norotate noenhanced
set xrange [ -30.0000 : 30.0000 ] noreverse
set yrange [ -30.0000 : 30.0000 ] noreverse
chi_length = 16.0
## Last datafile plotted: "hull.dat"
## Last plot was a multiplot
# saved multiplot
set multiplot layout 2,2 spacing 0 margins 0, 1, 0, 0.9 	title "concave hull smooth path expand 3.0    " font ":Bold"
chi_length = real("+Inf")
set title "chi_length = +Inf  (convex hull)"
plot 'hull.dat' index 0 with points ls 2 notitle, 	 '' index 0 concavehull with polygons fs empty border lc "black", 	 '' index 0 concavehull smooth path expand 3.00 with filledcurve ls 2 		    title sprintf("chi_length = %.1f", GPVAL_CHI_LENGTH)
chi_length = 25.
set title sprintf("chi_length = %.1f", chi_length)
replot
chi_length = 20.
set title sprintf("chi_length = %.1f", chi_length)
replot
chi_length = 16.
set title sprintf("chi_length = %.1f", chi_length)
replot
unset multiplot