emacs - 如何将 ditaa 或点 block 导出为标题图(LaTeX)？

Question

我有一个带有标题 ditaa 和点图的 org-mode 文档。当我导出到 LaTeX 时，生成的图像不会放在 figure 中环境，未给出 \caption ，并且没有给出 \label .其他源代码块导出正常。

我怎样才能解决这个问题？

这是一个示例 org-mode 文档:

* Plain source code works

#+CAPTION: This works
#+LABEL: fig:works
#+BEGIN_SRC
this is a test
#+END_SRC

The above (Figure [[fig:works]]) is a figure with some source code.  When
exported to LaTeX, it is placed inside a ~figure~ environment and
given a caption and label as expected.

* Ditaa doesn't work

#+CAPTION: Foo
#+LABEL: fig:foo
#+BEGIN_SRC ditaa :file foo.png :cmdline -E
                              /-----\
----------------------------->| foo |<-----------------------------
                              \-----/
#+END_SRC

The above (Figure [[fig:foo]]) is a ditaa figure.  When exported to LaTeX,
the image is not inside a ~figure~ environment, it is missing the
caption, and there is no ~\label~.

* Dot doesn't work

#+CAPTION: Bar
#+LABEL: fig:bar
#+BEGIN_SRC dot :file bar.png
digraph foo {
  asdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdf -> b;
}
#+END_SRC

The above (Figure [[fig:bar]]) is a dot figure.  When exported to LaTeX,
the image is not inside a ~figure~ environment, it is missing the
caption, and there is no ~\label~.

#+OPTIONS: toc:nil author:nil
#+TITLE:
#+DATE:

我在 Emacs 24.3.1 上使用 org-mode 8.2.10。

Answer 1

要让它工作，你需要有一个 #+RESULTS: #+BEGIN_SRC 下的部分 block 和标题，而不是:

* Plain source code

#+CAPTION: This works
#+LABEL: fig:works
#+BEGIN_SRC
this is a test
#+END_SRC

See Figure [[fig:works]].

* Ditaa

#+BEGIN_SRC ditaa :file foo.png :cmdline -E
                              /-----\
----------------------------->| foo |<-----------------------------
                              \-----/
#+END_SRC

#+CAPTION: Foo
#+LABEL: fig:foo
#+RESULTS:
[[file:foo.png]]

See Figure [[fig:foo]].

* Dot

#+BEGIN_SRC dot :file bar.png
digraph foo {
  asdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdf -> b;
}
#+END_SRC

#+CAPTION: Bar
#+LABEL: fig:bar
#+RESULTS:
[[file:bar.png]]

See Figure [[fig:bar]].

#+OPTIONS: toc:nil author:nil
#+TITLE:
#+DATE: