Re: process diagrams with dot and some glue using org

[Rick Frankel <rick@rickster.com>]

On 2013-07-19 13:23, Eric S Fraga wrote:

> a couple of weeks ago you developed some code to convert a pair of
> tables to a graphviz digraph and you wrote a very useful Worg page 
> about
> it:
> 
> http://article.gmane.org/gmane.emacs.orgmode/74280
> http://orgmode.org/worg/org-tutorials/org-dot-diagrams.html
> 
> I just wanted to say two things about it:
> 
> 1. if the typical use case is to use the code with #+call:, it would be
> more helpful to delete the #+header: line in the source code in the
> Worg page.  This header line presumes that the particular tables in
> your first example exist.  Deleting this line means that the code
> can only be used via a #+call statement but I think this is more
> logical.

I (sort of) disagree. I think specifying required arguments as header 
vars makes the calling requirements clearer. Perhaps:

#+HEADER: :var nodes='() graph='()

would be better...

rick