[Gnuplot-info] Arrow Data File Format?

[Vik R. <vi...@mi...>]

I want to draw a large number of straight lines on a chart. I plan to use arrows. One option is to use code such as this:

set arrow 7 from -500, -160, 0 to 500, -160, 0 nohead back nofilled linetype 1 linecolor rgb "dark-violet"  linewidth 2.000

It might be more elegant, if possible, to provide a data file listing the start and end points for all the arrows.  I see a sample data file, "arrowstyle.dat", at:

http://212.182.0.171/cgi-bin/dwww/usr/share/doc/gnuplot-doc/examples/arrowstyle.dat

... but it only lists 3 data points for each arrow. I need to list an xy start and xy end for each arrow - four data points. 

Is it possible to put this sort of data into a gnuplot data file, and, if so, what is the correct way to reference it via gnuplot commands?