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GFTODVI(1)             DragonFly General Commands Manual            GFTODVI(1)


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 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.


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 Metafont sources.


SEE ALSO

       tex(1), mf(1).
       Donald E. Knuth, The Metafontbook (Volume C of Computers and
       Typesetting), Addison-Wesley, 1986, ISBN 0-201-13445-4.
       Donald E. Knuth et al., Metafontware.


AUTHORS

       Donald E. Knuth wrote the program. It was published as part of the
       Metafontware technical report, available from the TeX Users Group.
       Paul Richards ported it to Unix.

Web2C 7.2                      14 December 1993                     GFTODVI(1)

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