confusion about the size of .gf files

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2 total messages Started by Eriks Rugelis Tue, 28 Oct 1986 01:35

#1201

Author: Eriks Rugelis
Date: Tue, 28 Oct 1986 01:35

30 lines
1701 bytes

imagine a tiny voice in the TeX wilderness calling....    help!

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

that sounded real fine to us until we started cranking our newly
received computer modern .mf's through metafont...  we were confronted
with .gf files that are an order of magnitude larger(!!) than their
corresponding .pxl's

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

so ok...  did we do something terrible to the .mf's that we got from
maria code?   does maria code deliver .mf's that need doctoring before
we use them?

we are targetting a 300 dpi canon type laser box and are first of
all concerned with doing this on vax/vms although we will be installing
TeX on our sun 3's as well

signed...   keep the money! send more disk space!!
-- 
          Voice: Eriks Rugelis
        Ma Bell: 416/736-5257 x.2688
     Electronic: {allegra|decvax|ihnp4|linus}!utzoo!yetti!eriks.UUCP
              or eriks@yulibra.BITNET

Re: confusion about the size of .gf files

#1211

Author: Chris Torek
Date: Sat, 01 Nov 1986 22:53

33 lines
1923 bytes

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

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