NAME

Font::TTF::Delta - Opentype Device tables

DESCRIPTION

Each device table corresponds to a set of deltas for a particular point over a range of ppem values.

first

The first ppem value in the range

last

The last ppem value in the range

val

This is an array of deltas corresponding to each ppem in the range between first and last inclusive.

fmt

This is the fmt used (log2 of number bits per value) when the device table was read. It is recalculated on output.

METHODS

new

Creates a new device table

read

Reads a device table from the given IO object at the current location

out($fh, $style)

Outputs a device table to the given IO object at the current location, or just returns the data to be output if $style != 0

$d->signature()

Returns a content based identifying string for this delta for compression purposes

$d->out_xml($context)

Outputs a delta in XML

AUTHOR

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