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Re: frozen value for discrete animation

From: Hugh J. Sloan III <sloan01@earthlink.net>
Date: Fri, 25 May 2007 11:08:41 -0700 (GMT-07:00)
Message-ID: <23355094.1180116522219.JavaMail.root@elwamui-mouette.atl.sa.earthlink.net>
To: "Dr. Olaf Hoffmann" <Dr.O.Hoffmann@gmx.de>, www-smil@w3.org, cogit@ludicrum.org, sjoerd@acm.org

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-----Original Message-----
>From: "Dr. Olaf Hoffmann" <Dr.O.Hoffmann@gmx.de>
>Sent: May 25, 2007 9:39 AM
>To: www-smil@w3.org, cogit@ludicrum.org, sjoerd@acm.org
>Subject: Re: frozen value for discrete animation
>> I propose to change the wording to "integral multiple" to make it clear
>> that we're talking about proper multiples here.  Alternatively, we could
>> just leave out the word "even", but I think (as apparently the original
>> author did also) that an extra adjective should make it even clearer.
>> Sjoerd (member of the SYMM working group, so in a position to effect the
>> change)
>I think this can avoid some confusion. The given formulars
>seem to be sufficient even without an additional adjective.
>What I found about this at wikipedia:
>'The integral value of a real number x is defined as the largest 
>integer which is less than, or equal to, x, see floor function.'
>Hmmm. The formular 
>'AD = d*i for some positive integer i'
>seems to be the important part of it to get 
>proper implementations.
>And what about the 'frozen value for discrete animation'?
>I still think, this is different in SMIL2 as with the old 
>SMIL animation recommendation or in SVG. They have
>only the time interval model and 
>'freeze the effect value at the last value of the active duration'.
>For this example:
>Because a time interval is exclusive end, the last value is 1
>and not 2 for the old SMIL animation recommendation or in SVG.
>With the SMIL2 timing modul it will get 1 with the 'cut off simple 
>duration' or 3 with the 'dur value simple duration'. 
>With the animation modul again it depends on the interpretation
>of 'simple duration', the 'dur value simple duration' may result in
>applicable formulars resulting in 2 (?), not really fitting to the
>time interval model, with the 'cut off simple duration' the
>formulars are not applicable anymore. 
>But if in the animation modul 'simple duration' has another
>meaning as in the timing modul, the fill attribute is not
>well defined for animation anymore. Understandable that
>for example the CR SVGT1.2 still uses the old definition for
>the fill attribute. 

Hugh J. Sloan III
Managing Director and Founder Sand Hill EC
Menlo Park, CA  

General Partner
Sand Hill Partners LLC 
Boston, MA and Seattle, WA  Federal Tax ID 20-4644460

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Received on Friday, 25 May 2007 18:08:57 UTC

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