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Re: Some comments on the Compositing module

From: Doug Schepers <schepers@w3.org>
Date: Thu, 12 Mar 2009 20:39:47 -0400
Message-ID: <49B9AB53.40006@w3.org>
To: anthony.grasso@cisra.canon.com.au
CC: "public-svg-wg@w3.org" <public-svg-wg@w3.org>
Hi, Anthony-

As we discussed, I merged the Primer and Language specs for the 
Compositing module, though I can't guarantee it's the best organization:

  http://dev.w3.org/cvsweb/SVG/modules/compositing/master/Overview.html

I also incorporated some of Eric's feedback, introduced a terminology 
section, turned the variables into a definition list, and converted the 
"." multiplier into a Unicode multiplication entity throughout.

Hope that helps-
-Doug

Anthony Grasso wrote (on 3/11/09 8:17 PM):
> Hi Erik,
>
> Thank you for the valuable feedback!
>
> I think these should go into tracker as I wont be able to act on them
> straight away.
>
> Perhaps we could quickly discuss this at the next telcon?
>
> Thanks,
>
> Anthony
>
> Erik Dahlström wrote:
>> Just a few comments on the SVG Compositing draft[1].
>>
>> == The 'enable-background' property ==
>>
>> [[ An additional group background buffer is created to store the
>> percentage of background in the group image canvas. ]]
>>
>> "percentage of background"? Is that to mean "An additional group
>> background buffer is created to store the alpha channel of the group
>> image canvas."?
>>
>> This "percentage of background" wording occurs frequently throughout
>> the primer and language specs. Also "group image canvas" isn't really
>> defined anywhere.
>>
>> The 'accumulate' keyword should probably say there what the canvas is
>> initialized as (from the primer I gather that it's opaque).
>>
>> == Comments on the Primer[2] ==
>>
>> - Why are the equations using "." as multiplication sign? Why not use
>> MathML?
>> - Would it be possible to get those equations complete with hyperlinks
>> to the definitions (e.g for things like 'Dca')?
>>
>> And as discussed at the Sydney 2009 F2F most of the primer should be
>> moved back into the language spec, though the above points still apply.
>>
>> Cheers
>> /Erik
>>
>> [1] http://dev.w3.org/SVG/modules/compositing/master/SVGCompositing.html
>> [2]
>> http://dev.w3.org/SVG/modules/compositing/master/SVGCompositingPrimer.html
>>
>>
Received on Friday, 13 March 2009 00:39:56 GMT

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