RE: Mathematics as Images

Wayne, just wondering.

What was the book’s file format from Vital Source: Html? EPUB? PDF?

And do you know the file format of the formula graphics? PNG, GIF, SVGA, or something else?

 

In most file format we use, the graphics should scale up or down with your magnification settings, so I’m very curious why your graphics didn’t do that.

 

Thanks for taking the time to show us this problem.

 

--Bevi Chagnon 

 

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Bevi Chagnon  | Designer, Accessibility Technician |  Chagnon@PubCom.com <mailto:Chagnon@PubCom.com>  

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PubCom: Technologists for Accessible Design + Publishing

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US Delegate to the ISO for PDF and PDF/UA standards

 

From: Wayne Dick <wayneedick@gmail.com> 
Sent: Thursday, July 20, 2023 5:13 PM
To: W3C WAI ig <w3c-wai-ig@w3.org>
Subject: Mathematics as Images

 

Many people did not consider my issue with mathematics as images. This image is a "reflowable" book on Projective Geometry from Springer-Verlag sold on Vital Source. All the text enlarges and reflows, but the mathematical notation  is  not enlarged.

That is the kind of sloppy presentation of mathematics. It is very hard to read this because you cannot treat it like PDF that you must have to zoom, and you  cannot treat  it like reflowable  text because every formula must be zoomed. 

Vital Source is a web based service. This format is misleading and very difficult to use. It should violate SC 1.4.10. As far as understanding that mathematics is language not images, Springer-Verlag and Vital Source should know  better.

How can a young person with low vision become a scientist?

Best, Wayne