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Path: utzoo!mnetor!seismo!umcp-cs!chris
From: chris@umcp-cs.UUCP (Chris Torek)
Newsgroups: net.text
Subject: Re: confusion about the size of .gf files
Message-ID: <4121@umcp-cs.UUCP>
Date: Sat, 1-Nov-86 17:53:21 EST
Article-I.D.: umcp-cs.4121
Posted: Sat Nov  1 17:53:21 1986
Date-Received: Mon, 3-Nov-86 23:36:13 EST
References: <431@yetti.UUCP>
Reply-To: chris@umcp-cs.UUCP (Chris Torek)
Organization: University of Maryland, Dept. of Computer Sci.
Lines: 33

In article <431@yetti.UUCP> eriks@yetti.UUCP (Eriks Rugelis) writes:
>i am more than a little confused about the new .gf font format
>that in my understanding is meant to supersede the older .pxl
>format;  i have seen several people post to the net stating that
>the .gf fonts are supposed to occupy less space than .pxl fonts

Often; not always.  GF files are essentially run-length encodings
of the pixellation of some font at a particular resolution.

>e.g.	cmr9 from the 1000 sub-directory
>	.pxl 19 512 byte disk blocks
>	.gf 240 disk blocks

Something is definitely wrong here:

	% cd /usr/local/lib/tex/fonts
	% cd cmr9; ls -l cmr9.300gf
	-rw-r--r--  1 bin         11820 Oct 19 12:24 cmr9.300gf
	% cd amr9; ls -l amr9.1500pxl
	-rw-r--r--  1 bin         13588 Mar 22  1986 amr9.1500pxl

Amr9 and cmr9 are obviously not the same font, but you can see
that in this case, the GF and PXL files are nearly the same size.
Note that cmr9.300gf and cmr9.1500pxl represent the same density
(300 dpi), even though one sounds five times bigger.

If you want to save disk space, use the `PK' font format.  It is
also easier to interpret than GF format; one blunder in the GF
format complicates things unnecessarily.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7690)
UUCP:	seismo!umcp-cs!chris
CSNet:	chris@umcp-cs		ARPA:	chris@mimsy.umd.edu