emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
From: James Harkins <jamshark70@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: Beamer export with \only overlays - how?
Date: Wed, 9 Oct 2013 02:28:30 +0000 (UTC)	[thread overview]
Message-ID: <loom.20131009T041836-957@post.gmane.org> (raw)
In-Reply-To: 20131008174243.GI2006@kuru.dyndns-at-home.com

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

> On Tue, Oct 08, 2013 at 11:41:36PM +0800, James Harkins wrote:
> > Question: How does one use Beamer's \only command with blocks?
(Successfully, with org-mode's beamer
> export, I mean.)
> > 
> > I found in the manual that you can give an overlay specification using
> > the BEAMER_ACT property... ok... but that's not the same as \only
> > because, when a latex chunk is marked \only<1>, it takes *no space* on
> > <2->. Using <1> and <2> causes the <2> to appear lower than the
> > <1>. That's not what I want.
> > 
> 
> Did you try this:
> 
> <http://orgmode.org/worg/exporters/beamer/ox-beamer.html#environments-overlay>

My example file uses BEAMER_ACT, so yes, I did try that. Here's what happens
if I try it with \only<1>.

#+LANGUAGE:  en
#+OPTIONS:   H:2 num:t toc:t \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t ':t
#+OPTIONS:   TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc
#+EXPORT_SELECT_TAGS: export
#+EXPORT_EXCLUDE_TAGS: noexport

#+startup: beamer
#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [presentation]
#+BEAMER_THEME: default
#+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_act(Act) %4BEAMER_col(Col)
%8BEAMER_opt(Opt)
#+PROPERTY: BEAMER_col_ALL 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.0 :ETC

* Section
** Frame (beamer_act, not quite right)
*** The problem on this frame
    I want Block 1 and Block 2 to occupy the same space on successive slides.
*** Block 1 							    :B_block:
    :PROPERTIES:
    :BEAMER_env: block
    :BEAMER_ACT: \only<1>
    :END:
*** Block 2							    :B_block:
    :PROPERTIES:
    :BEAMER_env: block
    :BEAMER_ACT: \only<2>
    :END:

-->

\begin{block}<\only<1>>{Block 1}
\end{block}

Where the correct syntax would be:

\only<1>{
\begin{block}{Block 1}
\end{block}
}

So in short, no, that doesn't help.

I'm getting the uncomfortable feeling that this is a use case that org just
doesn't support as yet.

Actually, reading further in the beamer user guide, I noticed last night
that what I really want is \overlayarea, e.g.:

\begin{overlayarea}{\textwidth}{3cm}
\only<1>{Some text for the first slide.\\Possibly several lines long.}
\only<2>{Replacement on the second slide.}
\end{overlayarea}

Unfortunately \overlayarea is not supported as a BEAMER_env:

*** dummy						      :B_overlayarea:
    :PROPERTIES:
    :BEAMER_env: overlayarea
    :BEAMER_envargs: {\textwidth}{3cm}
    :END:

There's no \begin{overlayarea} or \end{overlayarea} anywhere in the exported
code.

Oh, forgot: org-version says Org-mode version 8.2 (release_8.2-1-g025bb7 @
/home/dlm/share/org-mode.git/lisp/).

hjh

  reply	other threads:[~2013-10-09  2:29 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-08 15:41 Beamer export with \only overlays - how? James Harkins
2013-10-08 17:42 ` Suvayu Ali
2013-10-09  2:28   ` James Harkins [this message]
2013-10-09  7:23     ` Suvayu Ali
2013-10-10  1:16       ` James Harkins

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.orgmode.org/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=loom.20131009T041836-957@post.gmane.org \
    --to=jamshark70@gmail.com \
    --cc=emacs-orgmode@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).