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Re: [1.2T-LC] target element for an animation (ISSUE-2081)

From: Anthony Grasso <anthony.grasso@cisra.canon.com.au>
Date: Fri, 10 Oct 2008 18:21:35 +1000
Message-ID: <48EF108F.10708@cisra.canon.com.au>
To: "Dr. Olaf Hoffmann" <Dr.O.Hoffmann@gmx.de>
CC: www-svg@w3.org

Hi Dr. Hoffmann,

The SVG Working Group discussed ISSUE-2081 and we agreed that your wording 
should replace the current wording in the specification.

As a result i was given ACTION-2288 [1] to carry out the fixes to the 
specification. The new wording can be found in the "Attributes to identify the 
target element for an animation" section [2] of the specification.


Please advise the SVG Working Group if you have any further comments or feedback 
regarding this issue.

Kind Regards,

Anthony

[1] http://www.w3.org/Graphics/SVG/WG/track/actions/2288
[2] http://dev.w3.org/SVG/profiles/1.2T/master/animate.html#TargetElement

Doug Schepers wrote:
> Hi, Dr. Olaf-
> 
> Thanks for your comment.  I've recorded this as ISSUE-2081 in our
> Tracker, and when we resume telcons next week, after our Test Fest, we
> will discuss this and get back to you soon.
> 
> Regards-
> -Doug
> 
> Dr. Olaf Hoffmann wrote (on 10/1/08 8:03 AM):
>> Hello SVG WG,
>>
>> in "16.2.4 Attributes to identify the target element for an animation"
>> is noted:
>> "If the target element is not capable of being a target of the animation, then 
>> the animation is ignored."
>> And in the definition of the xlink:href attribute it is noted:
>> "If the target element is not part of the current SVG document fragment , then 
>> the animation is ignored. If the IRI reference is otherwise an invalid IRI 
>> reference, for example by being a reference to a non-existent element, then 
>> the animation timing will still run but no animation effect will be applied 
>> to the target attribute."
>>
>> This seems to conflict partly.
>> Because the second behaviour looks more useful for me, I would suggest
>> to write instead for the top note:
>> "If the target element is not capable of being a target of the animation, then 
>> the animation has no effect."
>> respectively for the other:
>> "If the target element is not part of the current SVG document fragment 
>> or the IRI reference is otherwise an invalid IRI reference, then the animation 
>> has no effect, this means the animation timing will still run but no
>> animation effect will be applied to the target attribute."
>>
>> Having 'no effect' is already defined in SMIL and implementations have not
>> to distinguish between 'otherwise invalid IRI reference's and other nonsense.
>> The remaining (uninteresting) open question is maybe, what the applicable
>> target attribute could be, if there is no target element the attribute belongs
>> to ;o)
>>
>>
>> Olaf
>>
> 
> 
Received on Friday, 10 October 2008 08:22:23 GMT

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