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Re: [O] Block level specification for tex code html export method

From: Andreas Leha
Subject: Re: [O] Block level specification for tex code html export method
Date: Thu, 03 Sep 2015 13:30:06 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (darwin)

Hi Alan,

Glad you like the example.

Three things:
1. It still works for me ;-)
2. The distorted png might come from the bug in htlatex I mentioned in
this thread [1].
3. It seems that the by-backend does not work properly for you.  I am
not sure about the reason for that.  What org-mode version do you run?


[1] http://tex.stackexchange.com/a/232739

Alan Schmitt <address@hidden> writes:
> Hello Andreas,
> I’m slowly catching up on the org mailing list, and I found your example
> very interesting. I tried to run it and it does not seem to work here.
> Here is what I did:
> - I copied the code below to a file
> - I evaluated the last block
> - I made sure that latex was one of the org-babel-load-languages
>   language
> - I tried executing the first block, which generated this strange png
> - I exported both to html and pdf, and in both cases I would have
>   a reference to the png instead of the svg/tikz code.
> I’m afraid I’m missing a step. Do you see what I’m doing wrong?
> Thanks,
> Alan
> On 2015-08-12 10:50, Andreas Leha <address@hidden> writes:
>> #+LATEX_HEADER: \usepackage{tikz}
>> First execute the second code block, to define the convenience macro
>> and to set the required new variables in ob-latex.el.  Then export to
>> HTML and to pdf to see the tree exported as an SVG image and as
>> embedded tikz respectively.
>> * Tikz test
>> Here's a tree, exported to both html and pdf.
>> #+header: :file (by-backend (html "tree.svg") (latex "tree.tikz") (t 
>> "tree.png"))
>> #+header: :imagemagick :iminoptions -density 600 :imoutoptions -geometry 800
>> #+header: :results file raw
>> #+header: :fit yes
>> #+begin_src latex
>>   \usetikzlibrary{trees}
>>   \begin{tikzpicture}
>>     \node [circle, draw, fill=red!20] at (0,0) {1}
>>     child { node [circle, draw, fill=blue!30] {2}
>>       child { node [circle, draw, fill=green!30] {3} }
>>       child { node [circle, draw, fill=yellow!30] {4} }};
>>   \end{tikzpicture}
>> #+end_src
>> #+results:
>> [[file:tree.png]]
>> * COMMENT setup
>> #+begin_src emacs-lisp :results silent
>>   (setq org-babel-latex-htlatex "htlatex")
>>   (defmacro by-backend (&rest body)
>>     `(case (if (boundp 'backend) (org-export-backend-name backend) nil) 
>> ,@body))
>> #+end_src

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