TFMTODIT(1)                                         TFMTODIT(1)



NAME
       tfmtodit - create font files for use with groff -Tdvi

SYNOPSIS
       tfmtodit [ -sv ] [ -ggf_file ] [ -kskewchar ] tfm_file
                map_file font

       It is possible to have whitespace between a command line
       option and its parameter.

DESCRIPTION
       tfmtodit  creates  a font file for use with groff -Tdvi.
       tfm_file is the name of the TeX font metric file for the
       font.   map_file  is  a  file giving the groff names for
       characters in the font; this file should  consist  of  a
       sequence of lines of the form:

              n c1 c2 ...

       where  n is a decimal integer giving the position of the
       character in the font, and c1,  c2,...   are  the  groff
       names  of  the  character.   If a character has no groff
       names but exists in the tfm file, then it will be put in
       the  groff  font  file as an unnamed character.  font is
       the name of the groff font file.  The groff font file is
       written to font.

       The  -s option should be given if the font is special (a
       font is special if troff should  search  it  whenever  a
       character  is  not  found  in the current font.)  If the
       font is special, it should be listed in the  fonts  com-
       mand in the DESC file; if it is not special, there is no
       need to list it, since troff can automatically mount  it
       when it's first used.

       To  do  a  good  job of math typesetting, groff requires
       font metric information not present  in  the  tfm  file.
       The reason for this is that TeX has separate math italic
       fonts whereas groff uses normal italic fonts  for  math.
       The additional information required by groff is given by
       the two arguments to the math_fit macro in the  Metafont
       programs  for the Computer Modern fonts.  In a text font
       (a font for which math_fitting is false), Metafont  nor-
       mally ignores these two arguments.  Metafont can be made
       to put this information in the gf file  by  loading  the
       following definition after cmbase when creating cm.base:

              def ignore_math_fit(expr left_adjustment,right_adjustment) =
                  special "adjustment";
                  numspecial left_adjustment*16/designsize;
                  numspecial right_adjustment*16/designsize;
                  enddef;

       For the EC font family, load  the  following  definition
       after  exbase (it is probably easiest to patch exbase.mf
       locally):

              def ignore_math_fit(expr left_adjustment,right_adjustment) =
                  ori_special "adjustment";
                  ori_numspecial left_adjustment*16/designsize;
                  ori_numspecial right_adjustment*16/designsize;
                  enddef;

       The gf file  created  using  this  modified  cm.base  or
       exbase  should  be specified with the -g option.  The -g
       option  should  not  be  given  for  a  font  for  which
       math_fitting is true.

OPTIONS
       -v     Print the version number.

       -s     The  font  is special.  The effect of this option
              is to add the special command to the font file.

       -kn    The skewchar of this font is at  position  n.   n
              should be an integer; it may be given in decimal,
              or with a leading 0 in octal, or with  a  leading
              0x  in hexadecimal.  The effect of this option is
              to ignore any kerns whose second component is the
              specified character.

       -ggf_file
              gf_file  is  a  gf file produced by Metafont con-
              taining special and  numspecial  commands  giving
              additional font metric information.

FILES
       c:/progra~1/groff/share/groff/1.20/font/devdvi/DESC
              Device description file.

       c:/progra~1/groff/share/groff/1.20/font/devdvi/F
              Font description file for font F.

SEE ALSO
       groff(1), grodvi(1), groff_font(5)



Groff Version 1.20       5 January 2009             TFMTODIT(1)
