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GFTODVI
!!!GFTODVI
NAME
SYNOPSIS
DESCRIPTION
OPTIONS
ENVIRONMENT
FILES
SEE ALSO
AUTHORS
----
!!NAME


gftodvi - make proof sheets from generic font files
!!SYNOPSIS


__gftodvi__ [[ __-overflow-label-offset__''=real'' ]
[[ __-verbose__ ] [[ ''gf_file_name'' ]
!!DESCRIPTION


This manual page is not meant to be exhaustive. The complete
documentation for this version of TEX can be found in the
info file or manual ''Web2C: A TeX
implementation''.


The __gftodvi__ program converts a generic font
(''gf'') file output by, for example, mf(1), to a
device independent (DVI) file (that can then be typeset
using the same software that has already been written for
TEX). The characters in the ''gf'' file will appear one
per page, with labels, titles, and annotations as specified
in Appendix H (Hardcopy Proofs) of ''The M
ETAFONT book''.


__gftodvi__ uses other fonts in addition to the main
''gf'' file. A `gray' font is used to typeset the pixels
that actually make up the character. (We wouldn't want all
the pixels to be simply black, since then labels, key
points, and other information would be lost.) A `title' font
is used for the information at the top of the page. A
`label' font is used for the labels on key points of the
figure. A `slant' font is used to typeset diagonal lines,
which otherwise have to be simulated using horizontal and
vertical rules. The default gray, title, and label fonts are
''gray'', ''cmr8'', and ''cmtt10'', respectively;
there is no default slant font.


To change the default fonts, you can give __special__
commands in your M ETAFONT source file, or
you can change the fonts online. An online dialog ensues if
you end the ''gf_file_name'' with a `/'. For
example,


gftodvi cmr10.300gf/


Special font substitution: grayfont black


OK; any more? grayfontarea /home/art/don/


OK; any more? slantfont
/home/fonts/slantimagen6


OK; any more?


will use ''/home/art/don/black'' as the `gray' font and
''/home/fonts/slantimagen6'' as the `slant' font (this
name indicates a font for lines with slope 1/6 at the
resolution of an Imagen printer).


The ''gf_file_name'' on the command line must be
complete. (The program prompts you for it if you don't give
it.) Because the resolution is part of the extension, it
would not make sense to append a default extension as is
done with TEX or DVI-reading software. The output file name
defaults to the same root as the ''gf'' file, with the
''dvi'' extension added. For example, the input file
''cmr10.2602gf'' would become
''cmr10.dvi''.
!!OPTIONS


The argument to __-overflow-label-offset__ specifies the
distance from the right edge of the character bounding box
at which the overflow equations (if any) are typeset. The
value is given in TEX points. The default is a little over
two inches.


Without the __-verbose__ option, __gftodvi__ operates
silently. With it, a banner and progress report are printed
on ''stdout''.
!!ENVIRONMENT


__gftodvi__ looks for ''gf_file_name'' using the
environment variable GFFONTS. If that is not set, it uses
the variable TEXFONTS. If that is not set, it uses the
system default.


See tex(1) for the details of the
searching.
!!FILES


''{gray.tfm,...}''


The default fonts.


''{gray.mf,...}''


The M ETAFONT sources.
!!SEE ALSO


tex(1), mf(1).
Donald E. Knuth, ''The M ETAFONT book''
(Volume C of ''Computers and Typesetting''),
Addison-Wesley, 1986, ISBN 0-201-13445-4.
Donald E. Knuth et al., ''M ETAFONT
ware''.
!!AUTHORS


Donald E. Knuth wrote the program. It was published as part
of the ''M ETAFONT ware'' technical
report, available from the TEX Users Group. Paul Richards
ported it to Unix.
----
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Last edited on Tuesday, June 4, 2002 12:22:05 am by "perry"
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