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 command 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 informa-
       tion required by groff is given by the two arguments to the math_fit macro in the Metafont programs for the Computer Mod-
       ern fonts.  In a text font (a font for which math_fitting is false),  Metafont  normally  ignores  these  two  arguments.
       Metafont  can be made to put this information in the gf file by loading the following definition after cmbase when creat-
       ing 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 containing special and numspecial commands giving additional font metric
              information.

FILES
       /usr/share/groff/1.20.1/font/devdvi/DESC  Device description file.

       /usr/share/groff/1.20.1/font/devdvi/F     Font description file for font F.

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



Groff Version 1.20.1                                     9 January 2009                                              TFMTODIT(1)