- From: Chris Lilley <chris@w3.org>
- Date: Tue, 17 Jan 2006 22:28:52 +0100
- To: www-svg@w3.org
- Cc: Ian Hickson <ian@hixie.ch>
Hello www-svg, Ian Hickson <ian@hixie.ch> wrote: > According to section 7.3 The initial coordinate system, "the SVG user > agent should get its initial value for the size of a px unit in real world > units to match the value used for other XML styling operations". > > What reasons does the working group consider might justify implementors > ignoring this recommendation? If there are no such reasons, why is the > requirement not absolute? If there are requirements, could they be listed > in the draft explicitly? Operating systems vary in their ability to say what the display density is. Some do not provide such a call at all; others always return hard-coded or inaccurate values (72, 75, 96, 100 and 120 are popular values encountered). Therefore, a "should" seems appropriate here. -- Chris Lilley mailto:chris@w3.org Chair, W3C SVG Working Group W3C Graphics Activity Lead Co-Chair, W3C Hypertext CG
Received on Tuesday, 17 January 2006 21:28:58 UTC