man > GFTODVI(1)

GFTODVI(1)                             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 de‐
       vice independent (DVI) file (that can then be typeset using the same software  that  has  al‐
       ready  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 Metafont‐
       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 sim‐
       ply 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 la‐
       bels 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. 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 uses the same root as the gf file, with the .dvi ex‐
       tension 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 and still maintains the program. It was published as part of the Meta‐
       fontware technical report. Paul Richards originally ported it to Unix.  Bug reports should go
       to tex-k AT tug.org (https://lists.tug.org/tex-k).

Web2C 2023                                  4 March 2021                                  GFTODVI(1)