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Re: animate-elem-227 not valid?

From: Chris Lilley <chris@w3.org>
Date: Mon, 27 Oct 2008 12:34:09 +0100
Message-ID: <118309748.20081027123409@w3.org>
To: Cameron McCormack <cam@mcc.id.au>
CC: public-svg-wg@w3.org

On Monday, October 27, 2008, 11:34:48 AM, Cameron wrote:

CM> Hello WG.

CM> Looking at animate-elem-227, I wonder if this test is supported by the
CM> spec.  For the animations that cannot be interpolated (the two circles
CM> on the right), the test assumes that the interval is divided into two
CM> 2.5s parts, where the from value shown for the first 2.5s and the to
CM> value is shown for the second 2.5s.

Yes, that was discussed at the test fest and its clear that the spec says the value should not interpolate but should be the first value for half the intercal and the second one for the second half.

Testing at exactly the midpoint is thus problematic. The test should pick an interval where the value is clearly one or the other, not the instant of changeover.

CM> The spec currently doesn’t say anything about interpolation when
CM> non-interpolable values are used, and we decided not to add such wording
CM> in for now.  So I don’t think the test can rely on this particular
CM> behaviour.

CM> Thanks,

CM> Cameron

 Chris Lilley                    mailto:chris@w3.org
 Technical Director, Interaction Domain
 W3C Graphics Activity Lead
 Co-Chair, W3C Hypertext CG
Received on Monday, 27 October 2008 12:34:26 UTC

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