Thread: Jetbook arrived
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Old 10-22-2008, 01:33 PM   #16
wallcraft
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Quote:
Originally Posted by pilotbob View Post
Is a 12pt fount supposed to produce the same size glyph on a device no matter it's size and resolution?
I'm not an expert either, but as I originally said in post #10 to the (>72 pts) thread:

The desk-top publishing point is 1/72 of an inch, and so a 24pt font is therefore 1/3 of an inch high on the grid used to define the font (which is larger than all actual characters). Fonts are always eventually mapped to bitmaps, and then the number of pixels per inch come into play. If there is a mismatch between the actual number of pixels per inch on the screen and the assumed number of pixels per inch in the font bitmap, then the on-screen size will be different than expected.

So when I say a font appears to be (say) 36pt I mean that it is a bit less than 1/2 an inch high on the screen. However, when you select a 36pt font on your computer (or the Jetbook) it is typically 36pt with respect to a standard number of pixels per inch which probably does not exactly match your screen ppi.
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