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Canvas example with proposed accessible fallback for Bar Charts

From: Jon Gunderson <jongund@illinois.edu>
Date: Mon, 1 Feb 2010 12:15:40 -0600 (CST)
To: public-canvas-api@w3.org, public-canvas-api-request@w3.org, "HTML WG" <public-html@w3.org>
Message-Id: <20100201121540.CBQ91034@expms1.cites.uiuc.edu>
Here is a link to a draft example of accessible fall back content for the canvas element when the canvas content represents a chart:

http://devserv.dres.uiuc.edu/ita/jongund/citaweb/test/aria/canvas/canvas1.html

This demonstration uses the data used to generate the bar chart to create an accessible data table. The table then is added to the document as a child of the canvass element.

Issues

    * Needed to add additional labeling properties to theRGraph libary for labeling data series
    * Does not work with the IE, since the VML generated by the canvas emulator plug-in is deleted.
Jon Gunderson, Ph.D.
Coordinator Information Technology Accessibility
Disability Resources and Educational Services

Rehabilitation Education Center
Room 86
1207 S. Oak Street
Champaign, Illinois 61820

Voice: (217) 244-5870

WWW: http://www.cita.illinois.edu/
WWW: https://netfiles.uiuc.edu/jongund/www/

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Received on Monday, 1 February 2010 18:16:14 GMT

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