Re: how to convert metric to pixels

From:

Patricia Shanahan <pats@acm.org>

Newsgroups:

comp.lang.java.help

Date:

Fri, 26 Oct 2007 20:12:32 -0700

Message-ID:

<ffuab0$1vst$1@ihnp4.ucsd.edu>

Eric Sosman wrote:

Rita Leon wrote:

On Fri, 26 Oct 2007 09:50:44 GMT, Thomas Fritsch
<i.dont.like.spam@invalid.com> wrote:

You idea is possible but the number of pixels per unit will vary
depending on the physical size of the monitor and the size of a pixel.
A 17" monitor @ 1024x768 will have a different number of pixels per
unit than a 22" monitor @ 1024x768. And then there is the issue of
dot pitch...

What is the pixel size when you are routing the display
to two or more output devices simultaneously? E.g., when you
are viewing your presentation on your laptop's 15-inch screen
while everyone else is watching the 10-foot projected image?

I'm typing this on a laptop with an external display connected, in
extended desktop mode, and the composition window placed so that it lies
across the boundary between the displays. The two displays have
different characteristics. What is the pixel size for this window?

I'm curious about the ultimate motive for caring about the size in
inches, as distinct from whether the user want to zoom in or out.

Patricia