Physical ouptut sizes
josh at freedesktop.org
Sat Oct 7 22:37:36 PDT 2006
Keith Packard wrote:
> On Fri, 2006-10-06 at 13:31 +0200, Xavier Bestel wrote:
>> How about being able to specify a "pseudo" physical size, for
>> videoprojectors ? I mean, when on such a display, I'd like e.g. Impress
>> to believe it's on a 14" monitor, to have big readable fonts.
>> Whatever the mean, it would be a good thing.
> That's already supported; you can set the screen physical size to any
> value you like and applications should use that to compute text sizes
> (and they do, mostly). I'd also like to report the physical monitor size
> (which, for projectors, EDID specs as 0 x 0) in case applications are
> interested in the 'real' size of the screen.
In the ideal case, you could still specify "physical size" of either a
monitor or a projector image, and somehow indicate viewing distance;
font sizes could then aim for the user's preferred "perceived size"
(viewing angle of a given font metric) or similar.
- Josh Triplett
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