Hi Stefan,
the trick with enabling and disabling externalization works perfectly
fine. Thanks for your help!
Regards,
Stefan
On Mo, 2010-10-11 at 09:46 +0200, Stefan Pinnow wrote:
> Hello Stefan,
>
> the problem has nothing to do with the groupplots. The error comes
from the
> "outside legend". Here my mimimal example showing the problem:
>
> % ----- minimal example -----
> \documentclass{minimal}
> \usepackage{pgfplots}
> \pgfplotsset{compat=newest}
> \usepgfplotslibrary{external}
> \tikzexternalize
> \begin{document}
> \begin{tikzpicture}
> \begin{axis}[
> legend entries = a,
> legend to name = named,
> ]
> \addplot coordinates { (0,0) (1,1) };
> \end{axis}
> \end{tikzpicture} \\
> \tikzexternaldisable % <-- comment me to show the error
> \ref{named}
> \tikzexternalenable
> \end{document}
> % ---------------------------
>
> So to circumvent the problem for now you could just exclude the
"outside
> legends" from externalization as shown above until the problem is
fixed.
>
>
> Best regards
> Stefan
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