#!/usr/local/bin/gnuplot -persist
# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'gantt.1.png'
set border 3 front lt black linewidth 1.000 dashtype solid
set xdata time
set format x "%b\n'%y" timedate
set grid nopolar
set grid xtics nomxtics ytics nomytics noztics nomztics nortics nomrtics \
 nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
set grid layerdefault   lt 0 linecolor 0 linewidth 0.500,  lt 0 linecolor 0 linewidth 0.500
unset key
set style arrow 1 head back filled linecolor rgb "#56b4e9"  linewidth 1.500 dashtype solid size screen  0.020,15.000,90.000  fixed
unset parametric
set style data lines
set mxtics 4.000000
set xtics border in scale 2,0.5 nomirror norotate  autojustify
set xtics  norangelimit 2.6784e+06
set ytics border in scale 1,0.5 nomirror norotate  autojustify
set ytics  norangelimit 
set ytics   ()
set title "{/=15 Simple Gantt Chart}\n\n{/:Bold Task start and end times in columns 2 and 3}" 
set xrange [ * : * ] noreverse writeback
set x2range [ * : * ] noreverse writeback
set yrange [ -1.00000 : * ] 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
T(N) = timecolumn(N,timeformat)
NO_ANIMATION = 1
timeformat = "%Y-%m-%d"
OneMonth = 2678400.0
## Last datafile plotted: "$DATA"
plot $DATA using (T(2)) : ($0) : (T(3)-T(2)) : (0.0) : yticlabel(1) with vector as 1,      $DATA using (T(2)) : ($0) : 1 with labels right offset -2