On Thu, 2011-10-06 at 11:41 -0500, Bruno Wolff III wrote: > On Thu, Oct 06, 2011 at 12:00:36 -0400, > Simo Sorce <simo@xxxxxxxxxx> wrote: > > > > My main use case here is video projectors, and in that case there is no > > way on earth you'll ever know the DPI as it depends on the distance from > > the wall, and again even if you knew the distance from the wall you'd > > know nothing because the optimal DPI will also depend on the distance of > > the crowd from the wall. > > What you really want to know is the resolution per angle or arc. And that > would be relatively constant for a project regardless of distance from > the surface it is projecting on. No, I do not really care because the apparent size of stuff depends on the distance of the viewer from the projected surface too, so having that value doesn't really tell you how big you should display stuff. Also I do not need to know the resolution per arc to know that 10 pixels are always 10 pixel just bigger because the wall is farther, except they are still too little for the job because the crowd is even farther from the wall than the projector is :) Simo. -- Simo Sorce * Red Hat, Inc * New York -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
