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Re: [css4-mediaqueries] Device units, viewing distance and occluded magnification

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Thu, 23 Feb 2012 08:37:07 -0800
Message-ID: <CAAWBYDAjcHNv_H0c4kzB9GjTZzBCLxg2deM1T_9KR3DaSPPBvg@mail.gmail.com>
To: Charles Pritchard <chuck@jumis.com>
Cc: "www-style@w3.org" <www-style@w3.org>
On Wed, Feb 22, 2012 at 8:08 PM, Charles Pritchard <chuck@jumis.com> wrote:
> This list hit a bit of a dead-end on discussing how to represent physical
> dimensions: I'm going to widen my gaze. Now seems like a fantastic time to
> talk about device units and viewing distance.
> Can we pull off a media query that says: (viewing-distance: 8ft)? When
> there's on person in the room, it's becoming feasible to judge how far the
> person is from the screen.
> Does it make sense to consider "target-distance" ?
> If we are considering overlays on contact lenses are steradians something we
> want to consider?

Viewing distance is already implicit in the definition of "px", which
is defined in terms of viewing angle

So, there's nothing you have to do.

Received on Thursday, 23 February 2012 16:37:54 UTC

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