W3C home > Mailing lists > Public > public-bpwg@w3.org > November 2009

Re: ACTION-885 (Canvas)

From: Jeff Sonstein <jxsast@rit.edu>
Date: Tue, 3 Nov 2009 12:28:02 -0400
Cc: Public BPWG <public-bpwg@w3.org>, Henny Swan <hennys@opera.com>, Yeliz Yesilada <yesilady@cs.man.ac.uk>
Message-Id: <2A43748A-937A-4435-9154-5C18F9823DC9@rit.edu>
To: achuter@technosite.es
some good points

On Nov 3, 2009, at 12:17 PM, Alan Chuter wrote:

> Perhaps the word "alternative" is needed here, "If you need to use  
> canvas, then provide an alternative."

I am not sure what that alternative might be...

> updated as the image is redrawn, if that changes its meaning. How  
> this is done in canvas I don't know,
> probably by the same script that updates the image.

I am not sure I can see any other way to accomplish this than through  

> Another solution might be to require that it be used in an  
> accessibility-supported way, as defined by WCAG [2].

I am also not sure how to make a canvas object meaningfully accessible

I wish I knew how
and I hope someone can enlighten me


"Power corrupts
  PowerPoint corrupts absolutely"
-- Edward Tufte --

Prof. Jeff Sonstein

Received on Tuesday, 3 November 2009 16:28:38 UTC

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