Hi Aurélien,
that is very strange, indeed. I can reproduce the problem with a file
named "Sinus" (without extension): lualatex fails whereas pdflatex works.
Seems as if they have different path resolution algorithms.
However, it worked as soon as I introduced a file suffix: both lualatex
and pdflatex find "Sinus.dat" .
My suggestion is to go along that path.
However, I would like to point out that 78000 points might be
essentially overkill - and I am not talking about the time that pgfplots
takes (be it lualatex or pdflatex). If you have 78000 points, you blow
up the size of your .pdf file. In addition, displaying it will take some
time. And: the user might not benefit at all unless you really have high
frequencies! Are you sure that you need such a sampling density? Often,
it is completely sufficient to have less samples for a .pdf document.
Note that if you generate some .png graphics containing JUST the plot,
you could use pgfplots to overlay an axis by means of its \addplot
graphics feature. That would have a smaller pdf.
Best regards
Christian
Am 30.11.2012 19:19, schrieb aurelien coillet:
> Hi,
>
> I'd like to plot a large file (78000 points) with pgfplots, and it
> obviously fails with pdflatex. I tried to use lualatex instead, but it
> does not seem to find my file...
> So I tried a very simple example :
>
> \documentclass{article}
> \usepackage[utf8]{luainputenc}
> \usepackage{pgfplots}
> \pgfplotsset{compat=1.7}
>
> \begin{document}
>
> \begin{tikzpicture}
> \begin{axis}
> \addplot file {Sinus};
> \end{axis}
> \end{tikzpicture}
>
> \end{document}
>
> with the Sinus file (a small one, 100 points) starting with:
>
> 0.00000000e+00 0.00000000e+00
> 2.02020202e-02 2.02006461e-02
> 4.04040404e-02 4.03930481e-02
> 6.06060606e-02 6.05689655e-02
> 8.08080808e-02 8.07201641e-02
> 1.01010101e-01 1.00838420e-01
>
> and it fails with:
>
> ! Package pgfplots Error: sorry, plot file{Sinus} could not be opened.
>
> Note that compiling this document with pdflatex works as intended.
> What am I doing wrong? I searched on google, but couldn't find
> anything...
>
> Thanks for your help! Regards,
>
>
> --
> Aurélien Coillet
>
>
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