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Re: SVG authoring tool, please recommend one

From: Charles McCathieNevile <charles@w3.org>
Date: Fri, 6 Jul 2001 06:10:31 -0400 (EDT)
To: Jonathan Chetwynd <j.chetwynd@btinternet.com>
cc: David Woolley <david@djwhome.demon.co.uk>, <w3c-wai-ig@w3.org>
Message-ID: <Pine.LNX.4.30.0107060607530.32701-100000@tux.w3.org>
Yes, imagemaps do need to be defined. But tackling the problem by having a
way of defining in CSS or somewhere else what parts of an image are linked
would still mean the tools (the user) needs to say when to do it. So the
problem is still to get better support from the tools.



On Fri, 6 Jul 2001, Jonathan Chetwynd wrote:

  Imagemaps need defining, ie by using co-ordinates, and this is confusing
  for user and author. one is having to draw at least twice.

Right, but that's because the tools are not very good. We can hope for a lot
better from SVG tools, because you select the graphic elements to link, and
it is unnatural to select the transparent part (in a mderately good

  Having at least an option to define a colour as transparent and
  non-clickable is 'natural'. there is a further issue as to whether internal
  transparent areas be clickable, I can see no justification, as even with 256
  colours one can select a similar but different colour.

  We have to accept that there is no way that we can design a system that will
  be failsafe. Even with the best of intentions, once there are a few movable
  images on a page, there are bound to be many juxtapositions that are hard to


  Clickable transparency makes almost any position difficult to interpret,
  without a complete understanding of the process.

  jonathan chetwynd
  IT teacher (LDD)
  http://www.peepo.com         "The first and still the best picture directory
  on the web"

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
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Received on Friday, 6 July 2001 06:11:40 UTC

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