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[SVGMobile12] SVGT12-207: Support for transformations is optional?

From: Ian Hickson <ian@hixie.ch>
Date: Wed, 28 Dec 2005 16:33:46 +0000 (UTC)
To: www-svg@w3.org
Message-ID: <Pine.LNX.4.62.0512281625040.7669@dhalsim.dreamhost.com>

There do not appear to be _any_ conformance requirements at all in the 
following sections:

 7.4 Coordinate system transformations
 7.5 Nested transformations
 7.6 The transform attribute
 7.6.1 The TransformList value
 7.7 Constrained Transformations
 7.7.1 The User Transform
 7.7.2 ViewBox to Viewport transformation
 7.7.3 Element Transform Stack
 7.7.4 The Current Transform Matrix
 7.7.5 The ref() transform value

In fact, in the entire document, the only attempt at normative 
requirements regarding transforms that I could find was in the dubious 
definition of the 'vector-effect' property. The sections cited above thus 
describe many things that do not in fact appear to be required of any 
implementations. These descriptions therefore seem incorrect.

Please update the specification so that it is clear what UAs must do in 
terms of implementing the transform="" and viewBox="" attributes, as well 
as any other transformation-related behaviour. Please then update the 
sections above so that they only describe the behaviour of conformant user 
agents, and do not make assertions that are not based in actual 
conformance requirements.

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Wednesday, 28 December 2005 16:34:05 UTC

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