# set terminal pngcairo  background "#ffffff" enhanced fontscale 1.0 size 640, 480  dashlength 2
# set output 'lines_arrows.3.png'
set style increment default
set style line 1  linecolor rgb "red"  linewidth 3.000 dashtype 2 pointtype 2 pointsize default pointinterval 0 pointnumber 0
set style line 2  linecolor rgb "orange"  linewidth 2.000 dashtype 2 pointtype 2 pointsize default pointinterval 0 pointnumber 0
set style line 3  linecolor rgb "yellow"  linewidth 3.000 dashtype 2 pointtype 2 pointsize default pointinterval 0 pointnumber 0
set style line 4  linecolor rgb "green"  linewidth 2.000 dashtype 2 pointtype 2 pointsize default pointinterval 0 pointnumber 0
set offsets 0.05, 0.05, 0, 0
set pointintervalbox 1.5
set style data linespoints
set style function linespoints
unset xtics
unset ytics
set title "The pointinterval property also works with character point symbols" 
set xrange [ -0.500000 : 3.30000 ] noreverse nowriteback
set x2range [ * : * ] noreverse writeback
set yrange [ -1.00000 : 1.40000 ] noreverse nowriteback
set y2range [ * : * ] noreverse writeback
set zrange [ * : * ] noreverse writeback
set cbrange [ * : * ] noreverse writeback
set rrange [ * : * ] noreverse writeback
set bmargin  6
unset colorbox
myencoding = "utf8"
## Last datafile plotted: "+"
plot '+' using 1:(cos(x-1.))  with line lt -1 lw 1 title 'lw 1',       '+' using 1:(cos(x))     lt -1 pi -4 pt "C" title 'pi -4',        '+' using 1:(cos(x-.8))  lt -1 pi -3 pt "D" title 'pi -3 pt "D"',       '+' using 1:(cos(x-.2))  lt -1 pi -6 pt "✠" tc rgb "blue" title 'pi -6 tc rgb "blue"',     '+' using 1:(cos(x-.4))  lt -1 pi -3 pt "✲" title 'pi -3',     '+' using 1:(cos(x-.6))  lt -1 pi -5 pt "☺" title 'pi -5',      '+' using 1:(cos(x+.2))  with line lt -1 lw 2 title 'lw 2'