Re: New Exporter html - latex - beamer

[Eric S Fraga <e.fraga@ucl.ac.uk>]

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Robert Eckl <eckl.r@gmx.de> writes:

[...]

> OTOH i would like to use beamer in future, Beamer_Col does a similar
> job, except of surrounding the image with text. Does Beamer provide
> something like this?

You can fake what you want using columns and blocks.  See attached
example, both org and pdf.

> But, if i write the text for Beamer-Output, i have to handle html-output
> extra. The LaTeX-package "comment" isn't provided by beamer, I don't
> know neither how to comment out the HTML-Code for LaTeX-Beamer-fragments
> nor how to comment out Beamer-Fragments für HTML-Export.

Yes, this is a problem.  There is no easy way to select elements for
export other than whole sub-trees (using tags as in :noexport:).
I'm sorry I can't advise on this.  I don't tend to export to more than
one target for any given document.  I write with the intention of
exporting to latex (PDF) or html but not both from the same document.

-- 
Eric S Fraga (GnuPG: 0xC89193D8FFFCF67D)

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#+title: Testing Beamer in Org
#+author: Eric S Fraga
#+OPTIONS:   H:2 
#+EXPORT_EXCLUDE_TAGS: noexport

#+startup: beamer
#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [presentation]

#+startup: oddonly

#+COLUMNS: %40ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %10BEAMER_extra(Extra)

#+latex_header: \usepackage{tikz}

* The first topic
*** Nested blocks
    Use distillation for separation of two components.
***** The problem                                                                                      :BMCOL:
      :PROPERTIES:
      :BEAMER_col: 0.3
      :END:
******* Model                                                     :B_example:
        :PROPERTIES:
        :BEAMER_env: example
        :BEAMER_act: <2->
        :END:
        \[ y = \frac{\alpha x} {1 + (\alpha -1) x} \]
******* Goal                                                        :B_block:
        :PROPERTIES:
        :BEAMER_env: block
        :BEAMER_act: <3->
        :END:
        Minimise energy consumption

***** Distillation                                       :BMCOL:B_definition:
      :PROPERTIES:
      :BEAMER_col: 0.6
      :BEAMER_env: definition
      :BEAMER_act: <4->
      :END:
      #+begin_center
      #+attr_latex: width=0.9\textwidth
      [[file:~/s/figures/teaching/introduction/distillation-unit.pdf]]
      #+end_center

      \vfill
***** Approach
      :PROPERTIES:
      :BEAMER_act: <5->
      :END:
      We can change both the number of trays and the reflux rate.

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