NAME

       Font::TTF::Hdmx - Horizontal device metrics

DESCRIPTION

       The table consists of an hash of device metric tables indexed by the ppem for that
       subtable. Each subtable consists of an array of advance widths in pixels for each glyph at
       that ppem (horizontally).

INSTANCE VARIABLES

       Individual metrics are accessed using the following referencing:

           $f->{'hdmx'}{$ppem}[$glyph_num]

       In addition there is one instance variable:

       Num Number of device tables.

   METHODS
   $t->read
       Reads the table into data structures

   $t->out($fh)
       Outputs the device metrics for this font

   $t->minsize()
       Returns the minimum size this table can be. If it is smaller than this, then the table
       must be bad and should be deleted or whatever.

   $t->tables_do(&func)
       For each subtable it calls &sub($ref, $ppem)

   $t->XML_element($context, $depth, $key, $value)
       Outputs device metrics a little more tidily

BUGS

       None known

AUTHOR

       Martin Hosken <http://scripts.sil.org/FontUtils>.

LICENSING

       Copyright (c) 1998-2016, SIL International (http://www.sil.org)

       This module is released under the terms of the Artistic License 2.0.  For details, see the
       full text of the license in the file LICENSE.