From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <ndokos@gmail.com>
Subject: Re: [latex export/babel] pass arguments to \includegraphics from
 code blocks
Date: Mon, 22 Apr 2019 15:13:49 -0400
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Jakob Schöttl <jschoett@gmail.com> writes:

> Hi, I want to use code blocks to generate and include images of sheet music:
>
> #+BEGIN_SRC lilypond :file test.png :exports results
> \header{tagline=""}
> { a b c }
> #+END_SRC
>
>
> When doing a latex export the result is:
>
> \begin{center}
> \includegraphics[width=.9\linewidth]{test.png}
> \end{center}
>
> Is there a way to specify the arguments for \includegraphics? For 
> example I want to change the display width.
>
> Putting these lines above the code block have no effect:
>
> #+ATTR_LATEX: :width 4cm
>
> #+CAPTION: xxx
>
> Maybe this requires a change in ob-lilypond.el to introduce new header 
> arguments for the source block?
>

What I do in such cases is evaluate the block and then add the caption and
attribute line above the #+RESULTS line:

--8<---------------cut here---------------start------------->8---
#+BEGIN_SRC lilypond :file test.png :exports results
\header{tagline=""}
{ a b c }
#+END_SRC


#+ATTR_LATEX: :width 4cm
#+CAPTION: xxx
#+RESULTS:
[[file:test.png]]
--8<---------------cut here---------------end--------------->8---

-- 
Nick

"There are only two hard problems in computer science: cache
invalidation, naming things, and off-by-one errors." -Martin Fowler