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GFTODVI(1)                                                          GFTODVI(1)

       gftodvi - make proof sheets from generic font files

       gftodvi [ -overflow-label-offset=real ] [ -verbose ] [ gf_file_name ]

       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 char-
       acters 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.

       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 lit-
       tle over two inches.

       Without  the  -verbose option, gftodvi operates silently.  With it, a banner and progress report are printed on

       gftodvi looks for gf_file_name using the environment variable GFFONTS.  If that is not set, it uses  the  vari-
       able TEXFONTS. If that is not set, it uses the system default.

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

              The default fonts.

              The Metafont sources.

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

       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 7.5.6                    14 December 1993                     GFTODVI(1)