#!/usr/local/bin/gnuplot -persist
# set terminal canvas  rounded size 600,400 enhanced fsize 10 lw 1.6 fontscale 1 name "piecewise_1" jsdir "."
# set output 'piecewise.1.js'
unset border
set key fixed center top vertical Left reverse enhanced autotitle nobox
set style data lines
set xzeroaxis
set yzeroaxis
set xtics axis out scale 1,8 mirror norotate  autojustify
set xtics add  (1.00000 1, 6.28319 1)
set ytics axis in scale 1,0.5 mirror norotate  autojustify
set title "Piecewise function sampling" 
set title  font ",15" textcolor lt -1 norotate
set xrange [ -2.00000 : 10.0000 ] noreverse nowriteback
set x2range [ * : * ] noreverse writeback
set yrange [ * : * ] noreverse writeback
set y2range [ * : * ] noreverse writeback
set zrange [ * : * ] noreverse writeback
set cbrange [ * : * ] noreverse writeback
set rrange [ * : * ] noreverse writeback
set colorbox vertical origin screen 0.9, 0.2 size screen 0.05, 0.6 front  noinvert bdefault
plot sample [*:1] x, [1:2.*pi] cos(x), [2.*pi:10] (x-8)**2