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Re: SVG - A thought

From: Charles McCathieNevile <charles@w3.org>
Date: Wed, 19 Dec 2001 05:00:55 -0500 (EST)
To: "SHARPE, Ian" <Ian.SHARPE@cambridge.sema.slb.com>
cc: "WAI (E-mail)" <w3c-wai-ig@w3.org>
Message-ID: <Pine.LNX.4.30.0112190448100.14847-100000@tux.w3.org>
well, you're dreaming up the syntax, and when it was dreamed up in the SVG
group it was slightly different. But the idea is the same...

There is a box, which is called "the box", and it needs to be drawn the right
size (and the right style) and labelled, and it is linked to a couple of
other boxes...

translates to something like

...
<g id="boxN">      <!-- g is a grouping element -->
  <title>Box N</title>
  <metadata>You can put anything you like in here really, including
    information about relationships</metadata>
  <rect width="34" height="33" class="plaintype" />
</g>
...

You might like to look at the way we dealt with this in the SVG accessibility
note, although at that time we were working from a version of the spec that
required all metadata to be collected in one place, rather than being
attached to all kinds of eleemnts as it is now.
http://www.w3.org/TR/SVG-access/#Metadata

There we were desccribing how the pieces of a network were connected. This
led to surther work on using RDF in SVG to describe other kinds of
relationships, which I think is also a cool start, ubt perhaps
overcomplicated - http://www.w3.org/WAI/ER/ASVG/ with some discussion about
further development starting at
http://lists.w3.org/Archives/Public/wai-xtech/2001Jul/0000

cheers

Charles McCN


On Tue, 18 Dec 2001, SHARPE, Ian wrote:

  I don't know much about SVG but could it be used to produce the same output
  as UML? If it could, it could be possible to transform an SVG equivilent UML
  file to produce a descriptive "inturpretation" of the graphic. For example,
  I don't know the specifics but suppose SVG looked like this:

  <process_flow_diagram>
  <entity_box>
  	<text_in_box>Entity Name</text_in_box>
  	<height>h</height>
  	<width>w</width>
  	...
  	<one_to_many>Another entity</one_to_many>
  	... same for other relationships
  </entity_box>

  This could be inturpreted descriptively as:

  Entity name comprises whatever entities, has these properties, data flows
  between entity name and whatever other entities and comes in from whatever
  entities...

  This specific example may not necessarily be appropriate for this list but
  the approach could generalize to handle any SVG representations?

  Am I dreaming again?

  Cheers
  Ian




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-- 
Charles McCathieNevile    http://www.w3.org/People/Charles  phone: +61 409 134 136
W3C Web Accessibility Initiative     http://www.w3.org/WAI    fax: +1 617 258 5999
Location: 21 Mitchell street FOOTSCRAY Vic 3011, Australia
(or W3C INRIA, Route des Lucioles, BP 93, 06902 Sophia Antipolis Cedex, France)
Received on Wednesday, 19 December 2001 05:00:57 GMT

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