font::ttf::glyf(3) [centos man page]

Font::TTF::Glyf(3)					User Contributed Perl Documentation					Font::TTF::Glyf(3)

NAME

       Font::TTF::Glyf - The Glyf data table

DESCRIPTION

       This is a stub table. The real data is held in the loca table. If you want to get a glyf look it up in the loca table as
       "$f-"{'loca'}{'glyphs'}[$num]>. It will not be here!

       The difference between reading this table as opposed to the loca table is that reading this table will cause updated glyphs to be written
       out rather than just copying the glyph information from the input file. This causes font writing to be slower. So read the glyf as opposed
       to the loca table if you want to change glyf data. Read the loca table only if you are just wanting to read the glyf information.

       This class is used when writing the glyphs though.

METHODS

   $t->read
       Reads the "loca" table instead!

   $t->out($fh)
       Writes out all the glyphs in the parent's location table, calculating a new output location for each one.

   $t->out_xml($context, $depth)
       Outputs all the glyphs in the glyph table just where they are supposed to be output!

   $t->XML_start($context, $tag, %attrs)
       Pass control to glyphs as they occur

   $t->XML_end($context, $tag, %attrs)
       Collect up glyphs and put them into the loca table

BUGS

       None known

AUTHOR

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

perl v5.16.3							    2012-02-23							Font::TTF::Glyf(3)

Font::TTF::Loca(3)					User Contributed Perl Documentation					Font::TTF::Loca(3)

NAME

       Font::TTF::Loca - the Locations table, which is intimately tied to the glyf table

DESCRIPTION

       The location table holds the directory of locations of each glyph within the glyf table. Due to this relationship and the unimportance of
       the actual locations when it comes to holding glyphs in memory, reading the location table results in the creation of glyph objects for
       each glyph and stores them here.  So if you are looking for glyphs, do not look in the "glyf" table, look here instead.

       Things get complicated if you try to change the glyph list within the one table.  The recommendation is to create another clean location
       object to replace this table in the font, ensuring that the old table is read first and to transfer or copy glyphs across from the read
       table to the new table.

INSTANCE VARIABLES

       The instance variables do not start with a space

       glyphs
	   An array of glyph objects for each glyph.

       glyphtype
	   A string containing the class name to create for each new glyph. If empty, defaults to Font::TTF::Glyph.

METHODS

   $t->new
       Creates a new location table making sure it has a glyphs array

   $t->read
       Reads the location table creating glyph objects (Font::TTF::Glyph) for each glyph allowing their later reading.

   $t->out($fh)
       Writes the location table out to $fh. Notice that not having read the location table implies that the glyf table has not been read either,
       so the numbers in the location table are still valid. Let's hope that "maxp/numGlyphs" and "head/indexToLocFmt" haven't changed otherwise
       we are in big trouble.

       The function uses the OUTLOC location in the glyph calculated when the glyf table was attempted to be output.

   $t->out_xml($context, $depth)
       No need to output a loca table, this is dynamically generated

   $t->glyphs_do(&func)
       Calls func for each glyph in this location table in numerical order:

	   &func($glyph, $glyph_num)

BUGS

       None known

AUTHOR

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

perl v5.16.3							    2012-02-23							Font::TTF::Loca(3)