[Gnuplot-info] plot a vertical line?

[Sam S. <sd...@gn...>]

how do I add specific vertical lines on my plot?
e.g.,
plot y=sin(x)
with a vertical line through x=0.234?

set parametric
replot 0.234,t

is not good because,
 - it changes the y range
 - it switches the mode and erases the previous plot
 - the line does not reach the border

what I want is a grid line at specific points (I also want to be able to
assign colors/thickness to them)

-- 
Sam Steingold (http://www.podval.org/~sds) running w2k
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