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Re: [CSS21] Background-image: intrinsic ratio of SVG images

From: L. David Baron <dbaron@dbaron.org>
Date: Tue, 15 Nov 2011 11:23:31 +1300
To: "Gérard Talbot" <www-style@gtalbot.org>
Cc: "Tab Atkins Jr." <jackalmage@gmail.com>, Public W3C www-style mailing list <www-style@w3.org>
Message-ID: <20111114222331.GB25614@pickering.dbaron.org>
On Monday 2011-11-14 14:14 -0800, "Gérard Talbot" wrote:
> If, say, an SVG image has
> 
> <svg xmlns="http://www.w3.org/2000/svg">
>  <rect width="100" height="200" fill="green"/>
> </svg>
> 
> than such SVG image has a 1 to 2 intrinsic ratio.

No; the only things that give SVG images an intrinsic ratio are:
 * the viewBox attribute on the svg element
 * the height and width attributes on the svg element (but not if
   they're percentages)

This is described in
http://www.w3.org/TR/SVG11/coords.html#IntrinsicSizing .

> I am wondering here how a SVG image could have an intrinsic ratio without
> intrinsic dimensions. How would that be possible for a SVG image? This is
> furthermore relevant since section 14.2.1 mentions such possibility (it's
> the paragraph I quoted above).

Via the viewBox attribute.

-David

-- 
𝄞   L. David Baron                         http://dbaron.org/   𝄂
𝄢   Mozilla                           http://www.mozilla.org/   𝄂
Received on Monday, 14 November 2011 22:24:02 GMT

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