Query: font::ttf::kern
OS: debian
Section: 3pm
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
Font::TTF::Kern(3pm) User Contributed Perl Documentation Font::TTF::Kern(3pm)NAMEFont::TTF::Kern - Kerning tablesDESCRIPTIONKerning tables are held as an ordered collection of subtables each giving incremental information regarding the kerning of various pairs of glyphs. The basic structure of the kerning data structure is: $kern = $f->{'kern'}{'tables'}[$tnum]{'kerns'}{$leftnum}{$rightnum}; Due to the possible complexity of some kerning tables the above information is insufficient. Reference also needs to be made to the type of the table and the coverage field.INSTANCE VARIABLESThe instance variables for a kerning table are relatively straightforward. Version Version number of the kerning table Num Number of subtables in the kerning table tables Array of subtables in the kerning table Each subtable has a number of instance variables. kern A two level hash array containing kerning values. The indexing is left value and then right value. In the case of type 2 tables, the indexing is via left class and right class. It may seem using hashes is strange, but most tables are not type 2 and this method saves empty array values. type Stores the table type. Only type 0 and type 2 tables are specified for TrueType so far. coverage A bit field of coverage information regarding the kerning value. See the TrueType specification for details. Version Contains the version number of the table. Num Number of kerning pairs in this type 0 table. left An array indexed by glyph - left_first which returns a class number for the glyph in type 2 tables. right An array indexed by glyph - right_first which returns a class number for the glyph in type 2 tables. left_first the glyph number of the first element in the left array for type 2 tables. right_first the glyph number of the first element in the right array for type 2 tables. num_left Number of left classes num_right Number of right classesMETHODS$t->read Reads the whole kerning table into structures $t->out($fh) Outputs the kerning tables to the given file $t->XML_element($context, $depth, $key, $value) Handles outputting the kern hash into XML a little more tidilyBUGSo Only supports kerning table types 0 & 2. o No real support functions to do anything with the kerning tables yet.AUTHORMartin Hosken Martin_Hosken@sil.org. See Font::TTF::Font for copyright and licensing. perl v5.10.1 2011-02-25 Font::TTF::Kern(3pm)
Related Man Pages |
---|
font::ttf::ttc(3) - centos |
font::ttf::cmap(3) - centos |
font::ttf::gsub(3pm) - debian |
font::ttf::kern(3pm) - debian |
font::ttf::post(3pm) - debian |
Similar Topics in the Unix Linux Community |
---|
viewing tables |
how to write modifications in to two tables |
comparing two tables |
how to check availability of data of one file in other |
Help with mapping two tables and filling the null values |