how to change the resizebox for a generated tikz diagram?

[Alan Schmitt <alan.schmitt@polytechnique.org>]

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Hello,

When exporting this source block to beamer

#+header: :file (by-backend (beamer "foldleft.tikz") (t "foldleft.png"))
#+header: :imagemagick yes :iminoptions -density 600 :imoutoptions -geometry 800
#+header: :results file raw
#+header: :headers '("\\usepackage{tikz}")
#+begin_src latex
\usetikzlibrary{matrix,arrows}
\begin{tikzpicture}[scale=2, every node/.style={transform shape}]
\matrix (m) [matrix of nodes, row sep=2em, column sep=3em]
{ & $[x_1;$ & $x_2;$ & $\ldots;$ & $x_n]$ & \\
  $acc$ & \node (f1) [circle, draw] {$f$}; & \node (f2) [circle,draw] {$f$}; & & \node (fn) [circle,draw] {$f$}; & \texttt{fold\_left } $f$ \; $acc$ \; $[x_1; x_2; \ldots; x_n]$\\
};
\draw (m-2-1) edge[->,thick] (f1);
\draw (f1) edge[->,thick] (f2);
\draw (f2) edge[->,thick,dotted] (fn);
\draw (fn) edge[->,thick] (m-2-6);
\draw (m-1-2) edge[->,thick] (f1);
\draw (m-1-3) edge[->,thick] (f2);
\draw (m-1-5) edge[->,thick] (fn);
\end{tikzpicture}
#+end_src

I get the following

 \resizebox{.9\linewidth}{!}{\input{foldleft.tikz}}

How can I change the parameter of the resizebox command? I tried adding
a line
#+attr_latex :width \linewidth
as I usually do for images, but it is not taken into account.

Thanks,

Alan

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