Adding captions and attributes to figures and tables from code blocks in org-mode
Posted February 26, 2016 at 12:43 PM | categories: orgmode | tags:
I have wanted for a long time to be able to add captions and attributes to figures and tables generated from code blocks. I brought this up on the mailing list (https://lists.gnu.org/archive/html/emacs-orgmode/2015-11/msg00544.html ) and finally, I have figured out a way to do it that seems ok. It is based on the :wrap feature of org-babel.
The idea is to use a function that will wrap the results in additional text. We use this function that will add a caption and attributes.
(defun src-decorate (&optional caption attributes) "A wrap function for src blocks." (concat "ORG\n" (when attributes (concat (mapconcat 'identity attributes "\n") "\n")) (when caption (format "#+caption: %s" caption))))
Now, we try it out on a figure:
import numpy as np import matplotlib.pyplot as plt x = np.linspace(0, 2 * np.pi) y = np.sin(x) plt.plot(x, y) plt.savefig('images/sin.png') print('[[./images/sin.png' + ']]')
Figure 1: A sin wave.
Success. We can even refer to Fig. fig-sin. Next, we try it on a table.
import numpy as np x = np.linspace(0, 2 * np.pi, 5) y = np.sin(x) return [['x', 'y'], None] + list(zip(x, y))
Sweet. We can refer to Tab. tab-sin too. I have wanted this for a long time. Perseverance wins again! and org-mode gets better. Hopefully this works with org 8.3 too!
Copyright (C) 2016 by John Kitchin. See the License for information about copying.
Org-mode version = 8.2.10