[gmx-users] Plot data

[Anton Feenstra]

Anton Feenstra wrote:
> 
> Nguyen Hoang Phuong wrote:
> >
> > Dear David,
> >
> > I would like to display the first point (say x1,y1) and then wait about 1s
> > to display the next one (x2,y2) and so on. Is there any way to do that?
> 
> I read in the xmgrace manual that it can read (live) data from a pipe
> and display it on the go. That would mean that a small script which
> outputs your file line-by-line with a one second interval would do the
> trick. If your file is named 'diff.xvg', this might work:
> # awk '{print; system("sleep 1");}' diff.xvg | xmgrace -pipe
> but it might require an additional flag set to xmgrace...

The real world (as always) is slightly more complicated.
The following example works, guaranteed (at least for me it does):
[beware that it is one single commandline]

# awk '/^[^#@]/ {printf "g0.s0 point %g, %g\nautoscale\nredraw\n", $1, $2; system("sleep 1")}' diff.xvg | xmgrace -dpipe -

-- 
Groetjes,

Anton
 ________ ___________________________________________________________
|        | Anton Feenstra                                            |
| .      | Dept. of Pharmacochemistry - Free University Amsterdam    |
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| ' __   | Feenstra at chem.vu.nl - http://www.chem.vu.nl/afdelingen/FAR|
|  /  \  |-----------------------------------------------------------|
| (    ) | Dept. of Biophysical Chemistry - University of Groningen  |
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|  \__/  | "I Calculate My Birthright" (P.J. Harvey)                 |
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