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Re: Minutes, 22 April 2010 SVG WG meweting

From: Doug Schepers <schepers@w3.org>
Date: Sun, 25 Apr 2010 20:13:09 -0400
Message-ID: <4BD4DA95.3020008@w3.org>
To: "Dr. Olaf Hoffmann" <Dr.O.Hoffmann@gmx.de>
CC: www-svg@w3.org
Hi, Dr. Olaf-

I think it would be a good idea to get rather more precise on these 
points in SVG 2.0.  For SVG 1.1 SE, I personally want to simply finish 
it, and work with browser vendors, other implementers, and folks like 
you to define things like this with better detail and more 
interoperability for SVG 2.0.

To some extent, making SVG 1.1 more precise risks making existing UAs 
unconforming, which is less of a concern for SVG 2.0.

As far as adding the link you suggest, I don't see any harm in that.

-Doug Schepers
W3C Team Contact, SVG and WebApps WGs

Dr. Olaf Hoffmann wrote (on 4/23/10 6:06 AM):
> Hello,
> about still problematic path rendering issues:
>>There was some discussion recently on Line caps drawing on zero
>>    length lines
>>    jeff schiller argued it was pointless, dr olaf said it was needed
> I think, it might help some readers to have a link to the implementation
> notes  (for example: 'for details see F.5') for stroke-linecap and
> stroke-linejoin.
> The reason for previous problems was maybe, that it was not
> expected to find the normative behaviour of zero length segments
> in an appendix, just reading the definitions of the properties.
> On the other hand, many readers might not need details directly
> within the property definition, therefore such an additional link
> looks like a good solution (as it is already available for the marker
> with the related directionality problem).
> Oh - and just because there was already a discussion (for example
> with Cameron) and there seem to be problems to get the correct
> direction for problematic path segments (if points or control
> points coincide) - maybe it could help to provide some hints
> in the appendix about this as well - if there is an interest I can
> try to provide an explanation what the simple result of a mathematical
> proof is, I did some time ago ...
> Another question is, whether it might help implementors to
> give a hint as well about the applicability of a stroke-linejoin,
> if a cusp/corner appears within a cubic path segment...
> Olaf

Received on Monday, 26 April 2010 00:13:11 UTC

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