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Posted by Michael Fesser on 01/04/08 06:34
..oO(richard)
>On Fri, 04 Jan 2008 06:35:53 +1100, dorayme
>
>>Don't use inches and pts in your css instructions for screen
>>representation.
>
>Another thing, the way I see it, a screen is nothing more than a fancy
>sheet of paper. Inches and points are defined by a standard that was
>around well before electronics came into the world.
Correct. But screens don't work with points or inches, they work with
pixels. Now the problem is, that in order to correctly calculate the
corresponding length in pixels for a given pt or in value, the operating
system has to be configured to a correct dpi/ppi value. But most systems
simply run with the default values of 72 or 96 dpi, which means that the
results are completely unpredictable and never the same on different
platforms with different monitor sizes. A pixel will (almost) always be
a pixel, but an inch or point may result in quite different pixel sizes.
Micha
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