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From: "M. ‘quintus’ Gülker" <post+orgmodeml@guelker.eu>
To: Org-mode <emacs-orgmode@gnu.org>
Subject: Beamer export: Executing LaTeX between two frames
Date: Tue, 21 Jun 2022 10:01:03 +0200	[thread overview]
Message-ID: <87mte6tphc.fsf@guelker.eu> (raw)

Dear list,

I am working on a presentation for a conference (using org-mode and its
beamer export) and want to exchange the entire background for a specific
frame with an image. This is possible with Beamer, see
<https://tex.stackexchange.com/a/7919>. It works by issueing
\usebackgroundtemplate /between/ the frame environments. The frame
environment needs to be placed inside an extra group of {}, resulting in
a LaTeX construct like this (example taken from the StackExchange link):

    % Local background must be enclosed by curly braces for grouping.
    {
    \usebackgroundtemplate{\includegraphics[width=\paperwidth]{kitten.jpg}}%
    \begin{frame}{Kitten}
    \begin{itemize}
    \item 1
    \item 2
    \item 3
    \end{itemize}
    \end{frame}
    }

I tried to use a #+begin_export beamer construct to achieve this from
within org:

    * Normal Frame

    #+begin_export beamer
    {\usebackgroundtemplate{%
        \includegraphics[width=\paperwidth,height=\paperheight]{test.jpg}}
        \begin{frame}[t]\frametitle{This frame should have another background}
        % ...frame content...
        \end{frame}
    }
    #+end_export

    * Normal frame again

But that results in a LaTeX compilation error, because the command is
not issued between to frames, but within the frame created for the
"Normal Frame" heading. Breaking the construct up in two #+begin_export
beamer constructs like this therefore also does not work, because the
second heading causes an \end{frame} to be inserted after the
\usebackgroundtemplate group has been opened:

    * Normal Frame

    #+begin_export beamer
    {\usebackgroundtemplate{%
        \includegraphics[width=\paperwidth,height=\paperheight]{test.jpg}}
    #+end_export

    * This frame should have another background

    #+begin_export beamer
    }
    #+end_export

    * Normal frame again

So, how do I wrap the \begin{frame}...\end{frame} construct within the
\usebackgroundtemplate group?

  -quintus

--
Dipl.-Jur. M. Gülker | https://mg.guelker.eu | PGP: Siehe Webseite
Passau, Deutschland  | kontakt@guelker.eu    | O<


             reply	other threads:[~2022-06-21  8:02 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-21  8:01 M. ‘quintus’ Gülker [this message]
2022-06-22  9:35 ` Beamer export: Executing LaTeX between two frames Fraga, Eric
2022-06-26  4:17   ` Ihor Radchenko
2022-06-26 19:26     ` Fraga, Eric
2023-01-07 17:43     ` M. ‘quintus’ Gülker

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