Re: Add caption to babel-generated images

[Florian Lindner <mailinglists@xgm.de>]

Am 30.08.2016 um 13:54 schrieb Florian Lindner:
> Am 30.08.2016 um 13:04 schrieb Georgiy Tugai:
>> I don't know if it'll work for Python, but here's an example of what
>> works for me with Ditaa:
>>
>>> #+BEGIN_SRC ditaa :file figs/-mininet-ovsk.png :cache yes
>>>    /----+ /----+ /----+ /----+
>>>    |host| |host| |host| |host|       Containers
>>>    +-+--/ +-+--/ +--+-/ +--+-/
>>>      |      |       |      |
>>>   ---------------------------------------------
>>>      |      |       |      |
>>>    +-+------+-------+------+-+
>>>    |      Open VSwitch       |      Host kernel
>>>    +-----+-------------+---=-+
>>>          |             |
>>>   +------+-----+ +-----+------+
>>>   | controller | | controller |  Host userspace
>>>   +------------+ +------------+
>>> #+END_SRC
>>>
>>> #+ATTR_LATEX: :width "" :options [scale=0.75]
>>> #+CAPTION: [[label:fig:mininet-arch]]Mininet with OpenVSwitch architecture
>>> #+RESULTS[1d367d39f18523f4eb247cb13aabd6c6f633fbdf]: [[file:figs/-mininet-ovsk.png]]
>>
>> First, execute your Babel block in order to generate a #+RESULTS line.
>> Then, add CAPTION, ATTR_LATEX etc. lines before the RESULTS line.
> 
> This seems to work mostly, yes. Problem is, that org puts the label inside the caption:
> 
> \begin{figure}[htb]
> \centering
> \includegraphics[width=.9\linewidth]{rbf-gaussian-4.pdf}
> \caption{\label{fig:GaussianExample}Gaussian Basis functions with vertex distances marked at $n \cdot \frac{1}{6}$.}
> \end{figure}
> 
> This way the label does not work, i.e. won't be found by ref links.
> 
> #+BEGIN_SRC python :exports results :results file
>   import matplotlib.pyplot as plt, numpy as np
>   x = np.linspace(-2, 2, 1000)
>   plt.plot(x, np.exp(-np.power(4*x, 2)), label="shape-parameter=4")
>   for i in range(-4, 5): plt.axvline(1/6 * i, ymax = 0.1, ls = "-.", color="r")
>   plt.grid()
>   plt.savefig('rbf-gaussian-4.pdf')
>   return "rbf-gaussian-4.pdf"
> #+END_SRC
> 
> #+LABEL: fig:GaussianExample
> #+CAPTION: Gaussian Basis functions with vertex distances marked at $n \cdot \frac{1}{6}$.
> #+RESULTS:
> [[file:rbf-gaussian-4.pdf]]
> 
> 
> Using NAME instead of caption results in the same latex output.

Of course, using NAME instead of CAPTION. But I just learned that CAPTION is just an obsolete alias for NAME.