[whatwg] SVG extensions to <canvas>
Anne van Kesteren
annevk at opera.com
Mon May 4 15:39:38 PDT 2009
On Tue, 05 May 2009 00:16:50 +0200, ddailey <ddailey at zoominternet.net>
wrote:
> Maybe I misunderstood (or, more precisely, I am about to state my
> probable misunderstanding):
>
> Does this mean for example, that the author could take a chunk of <svg>
> code or its equivalent and pass it to canvas.drawImage() (and friends)
> and then have a raster version in JavaScript of the <svg> ? If so, then
> would that not allow, client-side, things like interrogating pixel
> values at point (x,y) within an SVG? That's something I'd like to see. I
> understand that if done improperly this can yield security problems
> across domains, but it seems in this case we're only talking one domain.
The SVG fragment could still contain a cross-origin reference of some
sorts so it does not help with that. It does allow you to create some SVG
and draw it on a <canvas> without having to first create a data URL or
some such out of it.
--
Anne van Kesteren
http://annevankesteren.nl/
More information about the whatwg
mailing list