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

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.