- From: Jim Ley <jim@jibbering.com>
- Date: Sun, 25 Nov 2001 15:18:28 -0000
- To: "WAI GL" <w3c-wai-gl@w3.org>
"Kynn Bartlett" <kynn-edapta@idyllmtn.com>: > At 7:22 PM +0000 11/24/01, Jim Ley wrote: > >I am, I have distinct problems with illustrations, they make content > >(which can be explained clearly in text) difficult to understand, at the > >same time I appreciate images so cannot disable all images, cartoon like > >"descriptive" images that are all I see are especially distractive. (I > >have a similar problem with music, I can only understand words..) > > Are you arguing this because you have an actual disability and > inability to use the web, I have no inability to use the sites I need, but as I'm sure everyone is aware, sites aren't currently illustrating their content in this manner - I certainly have difficulty with those few pages which have been suggested as examples of this technique. My current use of websites tends to be to technical documentation on programming or mark-up technologies, news sites, e-commerce, and tourism - I certainly use images a lot (I like to see what the destination looks like so I know it when I arrive, and I like to see the products I'm buying.) If images appeared though on every idea - I would have problems, I couldn't realisticly disable all images, as I'd lose the ones I do find valuable, but equally couldn't afford the distraction (or the download...) of those which are purely alternate content for that which is expressed in the paragraph. > or are you arguing this because you are > a web developer who does not wish to have the burden of illustrating > web pages placed upon him? I've already told my designers about the issues of illustrating ideas, and they are certainly very interested in accessibility and are increasing the imagery used, and how it's used. Whether websites are illustrated or not, makes no difference to me, there's no burden on me at all, I'm very much encouraging it, but the abscence of any techniques is currently very limiting especially for my own personal sites where I don't have designers behind me doing the work. > >Ruby can be used to hide images - in which user agents, can you describe > >exactly how a user agent should control this (I'm happy to author a user > >agent to do it, I do need though there to be some mechanism recommended > >that users can use for providing alternate non text content for text.) > > So what do you propose to solve this supposed problem? Well, there are a number of ideas all of which I think have problems, this alternate content and on a paragraph basis (single idea per parargraph, all ideas illustrated.) therefore we have the opportunity to add an alt/longdesc type attribute to the P element, I don't like that much, but it's an idea. Perhaps the simplest approach would be to require that all such illustrations have a class of "alternate" * or something, therefore I could simply hide them (and them alone) by a user stylesheet, something that is already well supported in current browsers. e.g. <p>Chickens like to fly. <img class="alternate" ... ></p> This would also allow page authors to choose to have the alternate content hidden by default on pages (if they wished). There are though still bandwidth issues with such as current browser CSS implementations still downloads images with display:none - but that's still less development work than supporting new attributes. * It would actually need to be more unique than this to avoid potential collisions with authors chosen names, who are not aware of the guidelines. The proposition that I can just disable images, leads me to another area which I haven't seen addressed with this alternate content - what are the alt etc. attributes? if it's a text explanation of how this illustration is trying to get the idea across then I will probably struggle just as much - ie "A man dropping a piece of paper on to the floor with a large red cross through it" - would still make be more confusing than just the paragraphs "don't drop litter" instruction. Jim.
Received on Sunday, 25 November 2001 10:29:16 UTC