font::ttf::hmtx(3)
NAME
Font::TTF::Hmtx - Horizontal Metrics
DESCRIPTION
Contains the advance width and left side bearing for each
glyph. Given the compressability of the data onto disk,
this table uses information from other tables, and thus
must do part of its output during the output of other
tables
INSTANCE VARIABLES
The horizontal metrics are kept in two arrays by glyph id.
The variable names do not start with a space
- advance
- An array containing the advance width for each glyph
- lsb An array containing the left side bearing for each
- glyph
METHODS
$t->read
Reads the horizontal metrics from the TTF file into memory
$t->numMetrics
Calculates again the number of long metrics required to
store the information here. Returns undef if the table has
not been read.
$t->out($fh)
Writes the metrics to a TTF file. Assumes that the "hhea"
has updated the numHMetrics from here
$t->update
Updates the lsb values from the xMin from the each glyph
$t->out_xml($context, $depth)
Outputs the table in XML
BUGS
None known
AUTHOR
- Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font
for copyright and licensing.