On Thu, 11 Sep 2008 02:09:58 +0200, ddailey <[EMAIL PROTECTED]> wrote:

> Hi Jeff!
>
> Jeff Schiller wrote:
>
>>On the other hand, I'm not sure about begin/end times in SMIL.  I
>>noticed last night that Opera seems to have problem with missing
>>nought characters in SMIL events (i.e. begin=".25s").  Haven't done
>>any thorough investigation though.
>
> I used to notice (a couple of years ago) that Opera had problems if I used 
> dur=".5s" instead of dur="0.5s", but thought that had all been fixed. Maybe I 
> just got used to using "0." in my time units for SMIL.  So yes, we'll need to 
> make sure to include such cases.

The syntax for the begin attribute is borrowed from SMIL, and the grammar 
doesn't allow for a "." to start a <Clock-value>. Possibly this is because it 
can cause confusion with id-values, but I haven't looked at it in detail yet.

Another somewhat related gotcha is dash/minus characters in id:s, that can 
clash with the <event-value> syntax, e.g. 'someid-0.4s.end' since 'someid-0.4s' 
is a valid id. What you need to do in such cases is to escape the dash in the 
id with a backslash.

> There are some boundary problems still existing of that type....
>
> for example in 
> http://srufaculty.sru.edu/david.dailey/svg/SVGOpen2008/filterBlur2.svg , if I 
> put
>
> <filter id="D"  x="0%" y="0%" width="100%" height="100%">
>        <feGaussianBlur stdDeviation="25,0" />
> </filter>
>
> instead of
>
> <filter id="D"  x="0%" y="0%" width="100%" height="100%">
>        <feGaussianBlur stdDeviation="25,0.1" />
> </filter>
>
> (thanks to Erik for helping me figure this out)

It should work, the spec wasn't explicit about this particular case though. If 
stdDeviation is 0 then nothing should be rendered according to the spec. 
However when it's > 0 in one direction and 0 in the other then I agree it makes 
sense to render it. I'll see if I can clarify this in the SVG Filters 1.2 spec, 
and try to get this fixed in Opera.

Cheers
/Erik

-- 
Erik Dahlstrom, Core Technology Developer, Opera Software
Co-Chair, W3C SVG Working Group
Personal blog: http://my.opera.com/macdev_ed

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