gftodvi

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 documen-
       tation 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 la-
       bel 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 di-
       alog 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/slan-
       timagen6 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 equa-
       tions (if any) are typeset.  The value is given in TeX points.  The de-
       fault 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  Typeset-
       ting), 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 2019                       25 March 2019                      GFTODVI(1)