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Re: [css-shapes][Editorial] Are SVG images allowed?

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Thu, 13 Jun 2013 14:05:16 +0200
Message-ID: <CAAWBYDBP7T4i9cR6RbUEOUhEtMyFW6xW1vCP5WuUj4wvqQiHgw@mail.gmail.com>
To: Lea Verou <lea@w3.org>
Cc: www-style list <www-style@w3.org>, "Eric A. Meyer" <eric@meyerweb.com>
On Thu, Jun 13, 2013 at 1:50 PM, Lea Verou <lea@w3.org> wrote:
> The current wording [1] is a bit ambiguous regarding whether SVG images are
> allowed for shape generation or whether it’s only raster images:
>
> Another way of defining shapes is by specifying a source image whose alpha
> channel is used to compute the shape. The shape is computed to be the path
> that encloses the area where the opacity of the specified image is greater
> than the ‘shape-image-threshold’ value. If the ‘shape-image-threshold’ is
> not specified, the initial value to be considered is 0.5.
>
> For animated raster image formats (such as GIF), the first frame of the
> animation sequence is used.
>
>
> There is also this note in the change Log [2]:
>
> Postpone shapes from SVG to a future Shapes level
>
>
> My interpretation was that SVG images are allowed, and the alpha channel
> used refers to the alpha channel of the rendered SVG. I assumed the
> changelog note was about defining SVG shapes directly in CSS code. However,
> Eric’s (CCed) interpretation was that only raster images are allowed, which
> indicates that there’s some ambiguity here.
>
> [1]: http://dev.w3.org/csswg/css-shapes/#shapes-from-image
> [2]: http://dev.w3.org/csswg/css-shapes/#since-may-3rd-2012

Yes, all images are allowed, regardless of format.  The only
SVG-related thing that's been postponed is referencing SVG elements
directly.

~TJ
Received on Thursday, 13 June 2013 12:06:05 UTC

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