- From: Jon Ferraiolo <jonf@adobe.com>
- Date: Tue, 9 May 2006 16:11:15 -0700
- To: "Ian Hickson" <ian@hixie.ch>
- Cc: <www-svg@w3.org>
Ian, This is the official response from the SVG WG to your Last Call comment at the following URL: http://lists.w3.org/Archives/Public/www-svg/2005Dec/0257.html We agree that some of the language in the sections of the coordinates system chapter that you list below could be improved and have made some minor editorial changes, some of which are described in SVG WG responses to other emails from you. However, we do not agree that we need to make all of the changes you suggest in the email below. For example, you imply that the specification is unclear that UAs must implement transforms because you could not find the word "must" within the sections on tranforms; however, we believe that it is self-evident to implementers that their implementations must supports SVG's transform features in order to be compliant even if the word "must" does not appear in those sections. In fact, we are not aware of implementations that have failed to support transformations due to the lack of the word "must" within those sections of the specification. Other email from you criticizes loose wording in the sections of viewBox and preserveAspectRatio. We have made minor editorial fixes to those sections. These are described in other email you should receive shortly. Thank you very much for your thorough review and excellent feedback. Please tell us within two weeks if you are not satisfied with this response. Jon Ferraiolo SVG WG -------------- 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 Tuesday, 9 May 2006 23:11:28 UTC