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->tables_do(&func)

For each subtable it calls &sub($ref, $ppem)

BUGS

None known

AUTHOR

Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font for copyright and licensing.