From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rick Frankel <rick@rickster.com>
Subject: Re: process diagrams with dot and some glue using org
Date: Fri, 19 Jul 2013 13:37:31 -0400
Message-ID: <eb831478f04695a2a481b9f08bfcf979@mail.rickster.com>
References: <87vc46ea4y.fsf@ucl.ac.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
 format=flowed
Content-Transfer-Encoding: 7bit
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:44069)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <rick@rickster.com>) id 1V0Ece-0006cR-CE
	for emacs-orgmode@gnu.org; Fri, 19 Jul 2013 13:37:56 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <rick@rickster.com>) id 1V0EcW-0006pE-1D
	for emacs-orgmode@gnu.org; Fri, 19 Jul 2013 13:37:40 -0400
Received: from [204.62.15.78] (port=55086 helo=mail.rickster.com)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <rick@rickster.com>) id 1V0EcV-0006oy-T1
	for emacs-orgmode@gnu.org; Fri, 19 Jul 2013 13:37:31 -0400
In-Reply-To: <87vc46ea4y.fsf@ucl.ac.uk>
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: Eric S Fraga <e.fraga@ucl.ac.uk>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>

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