How to add a label in LaTeX export

How to add a label in LaTeX export

[Florian Lindner]

Hello,

I have this org mode document:

#+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")
  plt.plot(x, np.exp(-np.power(2*x, 2)), label="shape-parameter=2")
  for i in range(-6, 7): plt.axvline(1/6 * i, ymax = 0.1, ls = "-.", color="r")
  plt.grid()
  plt.legend()
  plt.savefig('rbf-gaussian-4.pdf')
  return "rbf-gaussian-4.pdf"
#+END_SRC

#+NAME: fig:GaussianExample
#+CAPTION: Gaussian Basis functions with vertex distances marked at $n \cdot \frac{1}{6}$.
#+RESULTS:
[[file:rbf-gaussian-4.pdf]]


which exports to:


\begin{document}

\tableofcontents

\begin{figure}[htb]
\centering
\includegraphics[width=.9\linewidth]{rbf-gaussian-4.pdf}
\caption{\label{fig:orgparagraph1}
Gaussian Basis functions with vertex distances marked at \(n \cdot \frac{1}{6}\).}
\end{figure}
\end{document}


The #+NAME which I expect to translate to a label is ignored. I also tried using #+LABEL or transposing NAME and caption
but same result.

What is wrong there?

Thanks,
Florian

Re: How to add a label in LaTeX export

[Nicolas Goaziou]

Hello,

Florian Lindner <mailinglists@xgm.de> writes:

> I have this org mode document:
>
> #+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")
>   plt.plot(x, np.exp(-np.power(2*x, 2)), label="shape-parameter=2")
>   for i in range(-6, 7): plt.axvline(1/6 * i, ymax = 0.1, ls = "-.", color="r")
>   plt.grid()
>   plt.legend()
>   plt.savefig('rbf-gaussian-4.pdf')
>   return "rbf-gaussian-4.pdf"
> #+END_SRC
> #+NAME: fig:GaussianExample
> #+CAPTION: Gaussian Basis functions with vertex distances marked at $n \cdot \frac{1}{6}$.
> #+RESULTS:
> [[file:rbf-gaussian-4.pdf]]
>
>
> which exports to:
>
>
> \begin{document}
>
> \tableofcontents
>
> \begin{figure}[htb]
> \centering
> \includegraphics[width=.9\linewidth]{rbf-gaussian-4.pdf}
> \caption{\label{fig:orgparagraph1}
> Gaussian Basis functions with vertex distances marked at \(n \cdot \frac{1}{6}\).}
> \end{figure}
> \end{document}
>
>
> The #+NAME which I expect to translate to a label is ignored.

It isn't. It is changed into

 \label{fig:orgparagraph1}

See also `org-latex-prefer-user-labels'.

Regards,

-- 
Nicolas Goaziou

Re: How to add a label in LaTeX export

[Florian Lindner]

Am 06.09.2016 um 10:59 schrieb Nicolas Goaziou:
> Hello,
> 
> Florian Lindner <mailinglists@xgm.de> writes:
> 
>> I have this org mode document:
>>
>> #+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")
>>   plt.plot(x, np.exp(-np.power(2*x, 2)), label="shape-parameter=2")
>>   for i in range(-6, 7): plt.axvline(1/6 * i, ymax = 0.1, ls = "-.", color="r")
>>   plt.grid()
>>   plt.legend()
>>   plt.savefig('rbf-gaussian-4.pdf')
>>   return "rbf-gaussian-4.pdf"
>> #+END_SRC
>> #+NAME: fig:GaussianExample
>> #+CAPTION: Gaussian Basis functions with vertex distances marked at $n \cdot \frac{1}{6}$.
>> #+RESULTS:
>> [[file:rbf-gaussian-4.pdf]]
>>
>>
>> which exports to:
>>
>>
>> \begin{document}
>>
>> \tableofcontents
>>
>> \begin{figure}[htb]
>> \centering
>> \includegraphics[width=.9\linewidth]{rbf-gaussian-4.pdf}
>> \caption{\label{fig:orgparagraph1}
>> Gaussian Basis functions with vertex distances marked at \(n \cdot \frac{1}{6}\).}
>> \end{figure}
>> \end{document}
>>
>>
>> The #+NAME which I expect to translate to a label is ignored.
> 
> It isn't. It is changed into
> 
>  \label{fig:orgparagraph1}
> 
> See also `org-latex-prefer-user-labels'.

Thanks, see related issue for org-ref: https://github.com/jkitchin/org-ref/issues/285

Florian