# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'gantt.1.png'
set bar 1.000000 front
set border 3 front lt black linewidth 1.000 dashtype solid
set xdata time
set style circle radius graph 0.02, first 0.00000, 0.00000 
set style ellipse size graph 0.05, 0.03, first 0.00000 angle 0 units xy
set format x "%b\n'%y" timedate
set grid nopolar
set grid xtics nomxtics ytics nomytics noztics nomztics \
 nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
set grid layerdefault   lt black linewidth 0.200 dashtype solid,  lt black linewidth 0.200 dashtype solid
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
set style textbox transparent margins  1.0,  1.0 border
unset logscale
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   ()
unset paxis 1 tics
unset paxis 2 tics
unset paxis 3 tics
unset paxis 4 tics
unset paxis 5 tics
unset paxis 6 tics
unset paxis 7 tics
set title "{/=15 Simple Gantt Chart}\n\n{/:Bold Task start and end times in columns 2 and 3}" 
set yrange [ -1.00000 : * ] noreverse nowriteback
set paxis 1 range [ * : * ] noreverse nowriteback
set paxis 2 range [ * : * ] noreverse nowriteback
set paxis 3 range [ * : * ] noreverse nowriteback
set paxis 4 range [ * : * ] noreverse nowriteback
set paxis 5 range [ * : * ] noreverse nowriteback
set paxis 6 range [ * : * ] noreverse nowriteback
set paxis 7 range [ * : * ] noreverse nowriteback
set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front  noinvert bdefault
T(N) = timecolumn(N,timeformat)
timeformat = "%Y-%m-%d"
OneMonth = 2678400.0
GPFUN_T = "T(N) = timecolumn(N,timeformat)"
x = 0.0
## 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