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Re[2]: SVG, Style, Resizing, Etc.

From: Jon Gunderson <jongund@ux1.cso.uiuc.edu>
Date: Fri, 06 Oct 2000 09:09:18 -0500
Message-Id: <>
To: Al Gilman <asgilman@iamdigex.net>, <w3c-wai-ua@w3.org>
Cc: kasday@ACM.org, Bruce_Bailey@ed.gov
The colors user for rendering the graphic is often more important than size 
for some people with visual impairments.  It depends on what part of the 
eye is affected.  So we need to include foreground and background color in 
the mix for full consideration of accessibility for people with low vision.


At 10:24 PM 10/5/2000 -0400, Al Gilman wrote:
>[Len, Bruce: the reference thread is at
>  http://lists.w3.org/Archives/Public/w3c-wai-ua/2000OctDec/thread.html#4 ]
>According to Bruce Bailey's report
>   http://lists.w3.org/Archives/Public/w3c-wai-ig/2000OctDec/0012.html
>if you can force the text up in size you have solved the P2 problem.  Icons
>don't seem to be the same severity of problem.
>This would sound as though, modulo a possible P3 gap, you are probably
>covered as is.
>I am copying Len and Bruce on this as I feel a bit over my depth.  I don't
>have that good a background in low vision.
>On second thought that bit about icons is not so strange.  Icons are analog
>encoding.  This means you would expect them to degrade gradually on
>low-pass filtering where all you get is an outline, more or less.  Text
>doesn't look like it sounds.  You have to correctly identify the letters.
>Fuzz text and all the letters without ascenders or descenders look alike;
>that's an awful lot of them!  Symbolic codes have better error rejection
>for low error rates.  That's why digital and FM before it deliver high
>fidelity.  But like the little girl with the little curl; when they are
>bad... watch out!

Jon Gunderson, Ph.D., ATP
Coordinator of Assistive Communication and Information Technology
Division of Rehabilitation - Education Services
College of Applied Life Studies
University of Illinois at Urbana/Champaign
1207 S. Oak Street, Champaign, IL  61820

Voice: (217) 244-5870
Fax: (217) 333-0248

E-mail: jongund@uiuc.edu

WWW: http://www.staff.uiuc.edu/~jongund
WWW: http://www.w3.org/wai/ua
Received on Friday, 6 October 2000 10:09:12 UTC

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