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Re: Agenda July 13 2010 SVG WG telcon

From: Chris Lilley <chris@w3.org>
Date: Tue, 13 Jul 2010 19:29:29 +0200
Message-ID: <19510651859.20100713192929@w3.org>
To: "Erik Dahlstrom" <ed@opera.com>
CC: public-svg-wg@w3.org
On Tuesday, July 13, 2010, 6:54:09 PM, Erik wrote:

ED> Hello svg-wg,

ED> the agenda for July 13 2010, 20.00 UTC:

My regrets for todays call, I'm (supposed to be) on vacation today and tomorrow (ERCIM holiday).

ED> - Progress on LC comments

ISSUE-2344 and related ACTION-2821 and ACTION-2800 seems to be in good shape, after enquiring about a couple of problem areas and getting responses, I'm ready to make the edits to the references section and reply to Mohamed.

ISSUE-2349 Media type registration saw some action recently. The editors draft is updated to account for the two comments that were received in ietf-types review and one of the IESG Area Directors was in touch (todday in fact) regarding next steps in the registration.

They are in a hurry as an Internet Draft on 'Internet X.509 Public Key Infrastructure - Certificate Image' is about to move to a Proposed Standard RFC and references the svg media type. So as soon as we are out of Last Call and we have a stable document reference, it will be sent for IESG approval.

ISSUE-2340 I ran into a problem with during testing, see

ED> - Catmull-Rom curves
ED>    http://schepers.cc/?p=243


Is that the same as the thing Robert Miner was talking about?

Smooth curve through a bunch of points is a needed feature. It can be complicated if there are constraints on where the curve goes between points. Sometimes curves like that get really wild yo-yo effects between points.

By the way, besides producing drawn geometry, there is also an application of 'smooth curve through some points' to gradients. Consider each stop colour as a point in 3D space (the colour space). What we currently do in gradients is draw a straight line segment between each of the points. This leads to visual discontinuities as the slope of the line changes abruptly from point to point. A smooth curve avoids this. But has to be constrained to not move outside the colourspace, otherwise some colours in the resulting gradient are not, well, colours.

ED> Further topics depend on who's on the call, agenda requests are welcome as
ED> always.

I know, this was a long 'regrets'. Consider me conflicted. If I get guilted enough I might even show up tonight.

 Chris Lilley                    mailto:chris@w3.org
 Technical Director, Interaction Domain
 W3C Graphics Activity Lead
 Co-Chair, W3C Hypertext CG
Received on Tuesday, 13 July 2010 17:30:31 UTC

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