04-28-2020
Yes, sure, I need time to think about this too. A lot of head scratching coming on.
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LEARN ABOUT CENTOS
font::ttf::head
Font::TTF::Head(3) User Contributed Perl Documentation Font::TTF::Head(3)
NAME
Font::TTF::Head - The head table for a TTF Font
DESCRIPTION
This is a very basic table with just instance variables as described in the TTF documentation, using the same names. One of the most
commonly used is "unitsPerEm".
INSTANCE VARIABLES
The "head" table has no internal instance variables beyond those common to all tables and those specified in the standard:
version
fontRevision
checkSumAdjustment
magicNumber
flags
unitsPerEm
created
modified
xMin
yMin
xMax
yMax
macStyle
lowestRecPPEM
fontDirectionHint
indexToLocFormat
glyphDataFormat
The two dates are held as an array of two unsigned longs (32-bits)
METHODS
$t->read
Reads the table into memory thanks to some utility functions
$t->out($fh)
Writes the table to a file either from memory or by copying. If in memory (which is usually) the checkSumAdjustment field is set to 0 as
per the default if the file checksum is not to be considered.
$t->XML_element($context, $depth, $key, $value)
Handles date process for the XML exporter
$t->update
Updates the head table based on the glyph data and the hmtx table
$t->getdate($is_create)
Converts font modification time (or creation time if $is_create is set) to a 32-bit integer as returned from time(). Returns undef if the
value is out of range, either before the epoch or after the maximum storable time.
$t->setdate($time, $is_create)
Sets the time information for modification (or creation time if $is_create is set) according to the 32-bit time information.
BUGS
None known
AUTHOR
Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font for copyright and licensing.
perl v5.16.3 2012-08-21 Font::TTF::Head(3)