set title "Let's smile with parametric filled curves"
set size square
set key off
unset border
unset xtics
unset ytics
set grid
set arrow 1 from -0.1,0.26 to 0.18,-0.17 front size 0.1,40 lt 5 lw 4
set label 1 "gnuplot" at 0,1.2 center front
set label 2 "gnuplot" at 0.02,-0.6 center front
set parametric
set xrange [-1:1]
set yrange [-1:1.6]
plot [t=-pi:pi] \
sin(t),cos(t) with filledcurve xy=0,0 lt 15, \
sin(t)/8-0.5,cos(t)/8+0.4 with filledcurve lt 3, \
sin(t)/8+0.5,cos(t)/8+0.4 with filledcurve lt 3, \
t/5,abs(t/5)-0.8 with filledcurve xy=0.1,-0.5 lt 1, \
t/3,1.52-abs(t/pi) with filledcurve xy=0,1.8 lt -1