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Re: SVG Tiny 1.2 - error in 12.3.1 description of untransformable video element ?

From: Chris Lilley <chris@w3.org>
Date: Thu, 31 Aug 2006 13:06:46 +0200
Message-ID: <522620101.20060831130646@w3.org>
To: "Sean Allen" <sean@kinoma.com>
Cc: www-svg@w3.org

On Tuesday, August 22, 2006, 11:10:07 AM, Sean wrote:

SA> Hello,

SA> Regarding the SVG Tiny 1.2 specification proposal:

SA> It seems the descriptions in 12.3.1 explaining the placement of an
SA> untransformable video element is inconsistent with the results rendered in Example: media04.svg

Thanks for your comment. You are correct that the example is in error and should be updated.

SA> (If the x and y specify the center pin point, then the video would
SA> be offset by half it's width and height towards the upper-left of
SA> the screen) Specifically the sections below discuss this:

SA> 12.3.1 Restricting the transformation of the 'video' element

SA> For the four next values, the following applies: 

SA> The media shall be treated as a point, defined by x and y
SA> attributes. This point must be transformed to the nearest actual
SA> device pixel. Video at the native resolution given by the media
SA> shall then painted on a region whose center is the pin point and
SA> whose width and height are defined by the media. 

SA> The video must be displayed with its center aligned with the origin of the local coordinate system.


 Chris Lilley                    mailto:chris@w3.org
 Interaction Domain Leader
 Co-Chair, W3C SVG Working Group
 W3C Graphics Activity Lead
 Co-Chair, W3C Hypertext CG
Received on Thursday, 31 August 2006 11:07:10 UTC

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