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 Metafontbook.
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
Metafont 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? <RET>
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.