Re: Accessible name on SVG and the G element

This topic definitely seems within scope for the list. If there are people  
interested, there is a dormant W3C community group dedicated to the topic  
- is it worth resurrecting that for focused discussions and an effort to  
build a decently documented knowledge base others can refer to?

It's years since I was deep in this area, but I believe the following are  
braodly true:

To get to information deep in an SVG it has to be something that a screen  
reader expects to navigate to - you can use ARIA to add table structure if  
that's relevant, you can make blocks navigable inside the SVG because they  
are interactive, and apply labeling to them, ...

The title and desc elements in SVG used with labeledBy and describedBy  
seems like the "idiomatically right" approach in many cases, assuming  
you're not aiming at an audience who either use screenreaders or have no  
need of anything for visual interaction. (My own feeling is that most  
diagrams are hard to understand, and labels for the various pieces are  
really helpful. Ideally, visually present too, but sometimes that doesn't  
fit...)

How you include the SVG matters - not all methods provide equal support in  
browsers and assistive tech like screen readers.

There are people who have done some pretty advanced development of SVG for  
simulations and the like, and collecting references to the stuff they have  
published would be helpful when questions like this arise...

cheers

Chaals

On Fri, 17 Jun 2022 14:46:26 +0200, Léonie Watson  
<lwatson@tetralogical.com> wrote:

> You can use aria-label on a <g> element but you'll also need to use  
> role="img". Otherwise, the label will not be recognised.
>  You'll also want to do some thorough browser and screen reader testing.  
> In isolation a <g> element with these ARIA attributes will likely be  
> well supported, but if the <g> element is buried within a more complex  
> SVG the results are a lot less certain.


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Received on Saturday, 18 June 2022 11:09:21 UTC