Re: org-exp-blocks: what about previewing blocks ?

From: Carsten Dominik <dominik@uva.nl>
To: Eric Schulte <schulte.eric@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: org-exp-blocks: what about previewing blocks ?
Date: Fri, 28 Aug 2009 10:02:56 +0200	[thread overview]
Message-ID: <86C02086-39C5-461B-8876-C1E5E4264A43@uva.nl> (raw)
In-Reply-To: <m2fxbd84zz.fsf@gmail.com>

Hi Eric,

this sounds like a great alternative, thanks.

I wonder if we should consider some cashing of images, also
for export.  I think we could have an alist with sha1 hashes as keys
and image files as values.  The sha1 hash could be made from the
entire code and the command that is used to create the image..

- Carsten

On Aug 27, 2009, at 8:51 PM, Eric Schulte wrote:

> I don't have any plans to add previewing to org-exp-blocks, however
> there is an alternative.
>
> Org-babel provides for the evaluation and viewing of the results of
> blocks in Org-mode documents.  As such, it is possible to use Org- 
> babel
> to preview the output of blocks.  For example, with Org-babel  
> installed
> [1] calling C-c C-c on the following block will evaluate the block
> placing a link to the resulting file into the Org-mode document.
> Subsequently calling C-c C-o with the point on the block will find the
> link and open it previewing the image.
>
> --8<---------------cut here---------------start------------->8---
> #+begin_src ditaa :file images/blue.png :cmdline -r
> +---------+
> | cBLU    |
> |         |
> |    +----+
> |    |cPNK|
> |    |    |
> +----+----+
> #+end_src
> --8<---------------cut here---------------end--------------->8---
>
> Hopefully in the near future Org-babel should be stable enough to
> justify an initial release, which should include an instructional page
> on worg.
>
> Best -- Eric
>
> Footnotes:
> [1]  http://eschulte.github.com/org-babel/#getting-started
>
>
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prof.dr. Carsten Dominik				dominik@uva.nl
Astronomical Institute 'Anton Pannekoek' 	 	www.astro.uva.nl/~dominik
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