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[Orgmode] [PATCH] new babel latex feature :imagemagick

From: Andreas Leha
Subject: [Orgmode] [PATCH] new babel latex feature :imagemagick
Date: Thu, 24 Feb 2011 17:16:55 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20101226 Iceowl/1.0b1 Icedove/3.0.11

Hi all,

Just a small patch that might make life easier for
LaTeX (and esp. tikz) users.  It enables the output of graphics in a
lot of formats using imagemagick.  See below for an example.

This is my first patch, I have never programmed emacs lisp before, and
my common lisp experiences have been short and a while ago.  So please
excuse a (possibly) bad patch.

LaTeX source blocks now have three new options:
- :imagemagick
  When not nil the source block is processed to pdf and the pdf is
  converted with imagemagick to whatever is given as :file
  Thus, the format is not limited to png.
- :iminoptions
  This is passed to imagemagick before the pdf file
- :imoutoptions
  This is passed to imagemagick before the output file

Small Example:
#+begin_src latex ... :file test.jpg :imagemagick yes :iminoptions
-density 300 :imoutoptions -geometry 400 ...
will use this command for conversion:
convert -density 300 <tmp-pdf> -geometry 400 test.jpg

Full example:
Export this to pdf and to html to see the effect.
* Test
  #+begin_src R :session :exports both :results silent

  #+srcname: test_plot
  #+begin_src R :session :exports code :results output latex
    tikz(console=TRUE, width=4, height=4)
    plot(rnorm(100), rnorm(100))
    dummy <- dev.off()

  #+srcname: test_plot_png
  #+begin_src latex :exports (if (and (boundp 'backend) (eq backend
'latex)) "none" "results") :file test.png :imagemagick yes :iminoptions
-density 600 :imoutoptions -geometry 400 :fit yes :noweb yes :headers

  #+srcname: test_plot_tikz
  #+begin_src latex :noweb yes

* Latex Options                               :noexport:
#+LATEX_HEADER: \usepackage{tikz}


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