Re: [Gnuplot-info] streamline with gnuplot ?

[Hans-Bernhard B. <br...@ph...>]

Dellacherie Stephane wrote:

[...]

> Indeed, without this command, I cannot see the arrow on my x11 terminal.
> 
> What is the right way to obtain the arrows on my x11 terminal (i.e. 
> without "plot(0)") ?

None.  Arrows are meant to be part of a plot, in gnuplot.  That's why 
the command is "set" arrow, not "draw arrow" or whatever --- arrows are 
part of the description of the plot you set up with various gnuplot 
"set" commands, which will then get executed for all subsequent "plot", 
"splot" and "replot" commands.

If you don't need an arrowhead, it may be that

	plot '-' w l
  	  0 0
	  0.5 0.5
	 E

is useful to you.  See "help datafile special" to see how this works.