W3C home > Mailing lists > Public > www-smil@w3.org > April to June 2007

RE: [SMIL30 FWD] calcMode, keyTimes and examples

From: Patrick Schmitz <cogit@ludicrum.org>
Date: Tue, 29 May 2007 11:01:39 -0700
To: "Dr. Olaf Hoffmann" <Dr.O.Hoffmann@gmx.de>, <www-smil@w3.org>
Message-ID: <ENEGINNFOHPGHPIICCFJEECPEGAB.cogit@ludicrum.org>

This is why I should not have replied quickly ;)  Will try again this
evening.

Patrick

> -----Original Message-----
> From: Dr. Olaf Hoffmann [mailto:Dr.O.Hoffmann@gmx.de]
> Sent: Tuesday, May 29, 2007 10:46 AM
> To: Patrick Schmitz; www-smil@w3.org
> Subject: Re: [SMIL30 FWD] calcMode, keyTimes and examples
>
>
>
> > I think at one point we had some idea about the last value of 1 being
> > implied, and then we made it tighter. This may be cruft left over from
> > that, but I want to be sure that we do not have anything left over that
> > conflicts. I will take a closer look at this tonight.
> >
> > First thought is that to produce what the text describes, the
> code should
> > say:
> >
> >    <animate attributeName="foo" from="10" to="20"
> >       dur="10s" keyTimes="0.0; 0.7; 1"
> >       calcMode="spline" keySplines=".5 0 .5 1 1 1" />
> >
>
> No, 3.2.3:
> 'If a list of keyTimes is specified, there must be exactly as many
> values in the keyTimes list as in the values list.'
>
> from-to are two values, not three ;o)
>
> And the there is always a multiple of 4 numbers in the
> keySpline list, here 4 for from-to or 8 for three keyTimes:
>
> 'Each control point description is a set of four floating point
> values: x1 y1
> x2 y2, describing the Bezier control points for one time segment.'
>
>
>
> This may work (but did not test it and does not use from-to anymore):
> dur="10s"
> values="10;20;20"
> keyTimes="0.0; 0.7; 1"
> calcMode="spline" keySplines=".5 0 .5 1;0 0 1 1"
>
> (with from-to this is possible in SVG with animateMotion and keyPoints,
> not available in SMIL)
>
>
>
>
> (don't panic, we are with you, and after so long time having these
> things in the recommendation, there is no need to hurry now ;o)
Received on Tuesday, 29 May 2007 18:01:51 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 7 December 2009 10:53:29 GMT