From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <n.goaziou@gmail.com>
Subject: Re: [RFC] Overlay specification for includegraphics
Date: Mon, 28 Oct 2013 09:20:49 +0100
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In-Reply-To: <20131027221632.GH16832@kuru.dyndns-at-home.com> (Suvayu Ali's
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To: Suvayu Ali <fatkasuvayu+linux@gmail.com>
Cc: Emacs Org mode <emacs-orgmode@gnu.org>, Carsten Dominik <carsten.dominik@gmail.com>

Hello,

Suvayu Ali <fatkasuvayu+linux@gmail.com> writes:

> I tested with a minimal setup.  Same issue.  The following:
>
>   #+attr_beamer: :overlay 1 :width 0.8\linewidth
>   [[file:bla.png]]
>
> exports as,
>
>   \includegraphics[width=.9\linewidth]{bla.png}
>
> Something is off.

Beamer back-end delegates external link handling to the LaTeX back-end
(see l. 723 in "ox-beamer.el"). The latter ignores everything about
Beamer and its attributes.

In most cases, you can specify an overlay attribute to a link using
export snippets (see "Beamer specific syntax" in section 12.5 of the
manual). But it requires adding contents to the link, which is
impossible for image links, as the must have no contents.

Therefore, in this case, Someone needs to copy image handling in
"ox-beamer.el" and add "ATTR_BEAMER" support there.


Regards,

-- 
Nicolas Goaziou