Re: [WinMac] Re: fonts
Darron Spohn(dspohn[at]clicknet.com)
Wed, 20 Jan 1999 07:39:29 -0800
If Fontography stores kerning tables in the bitmaps they've done some pretty
nifty programming. Bitmaps are graphics, not mathematical representations as
are Postscript fonts. A bitmap font is a simple picture, that's all.
The kerning information is in the Postscript printer font, and not in the
PPD (Postscript Printer Description) as you stated earlier. The PPD files,
whether on a Windows or a Mac, is a plain text file that contains the
printer's characteristics, such as printable area, resident fonts, halftone
screen frequencies, etc.
--
Darron Spohn
Publications Manager
ClickNet Software Corporation
http://www.clicknet.com
----------
>From: Dan Schwartz <expresso@snip.net>
>
> I'm just going by how Fontographer handles the importing of metrics.
>
> Also, page layout apps manipulate the code a bit differently. It's too
> late for me to go into detail this morning. :(
>
> Cheers!
> Dan
>
> At 10:52 PM 1/19/99 -0500, Alex wrote:
>>> No, an instance of the kerning and spacing tables for each scaleable
>>>typeface are stored in the bitmap (screen) font. That is why you have the
>>>choice to either import them in Fontographer, have it generate a new set
>>>automatically, and/or adjust kerning pairs manually.
>>
>>I believe you are wrong on this one. The following is a quote from
>>"Digital Prepress Complete" by Donnie O'Quinn & Matt LeClair, published
>>by Haydeb Books (a very good book):
>>
>>"...ATM efectively combines screen and printer font information. By
>>taking a peek into the printer font information, ATM determines what your
>>type should look like. It then renders your bitmap type as smoothly as
>>possible onscreen, regardless of point size, zoom factors, rotation, or
>>scaling... All ATM needs to acomplish this is one screen font (regardless
>>of its point size) and the printer font... If you're working in Windows,
>>ATM works without screen fonts being present, creating onscreen bitpmaps
>>from existing .pfb files, or the outline fonts used on the Windows
>>platform."
>>
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