#38 Fail to dump kerning table for Vollkorn

closed-works-for-me
nobody
TrueType (18)
5
2012-03-07
2011-03-16
Pander
No

Fonttools version 2.3-1 ttx fails to dump kerning table for TTF fonts of Vollkorn http://friedrichalthausen.de/?page_id=411 According to the author, the fonts have kerning information, however the complete kern table in the XML output is missing.

Please fix this in order to widen support of dumping kerning tables.

Discussion

  • I've just downloaded Vollkorn and tried this, and the kerning information is all there in the GPOS table. There is no kern table in the font.

     
  • Pander
    Pander
    2011-04-05

    I used -t kern instead of -f GPOS What is the difference between the two for retrieveing kerning information?

     
  • "kern" tables were the way of specifying kerning information in TrueType fonts, and are also available in OpenType, but OpenType also adds the "GPOS" table, which can provide more than just pairwise kerning information. Vollkorn has a GPOS table with kerning information but no kern table, so you can't use "-t kern" to retrieve the data; ttx won't translate the data for you. Use "-t GPOS" instead.

    In general, use "-t kern -t GPOS", and process whichever one gets dumped.

     
  • Pander
    Pander
    2011-04-06

    • status: open --> open-works-for-me
     
  • Issue to be confusion about the location of the kerning data. Bug can be closed.

     
    • status: open-works-for-me --> closed-works-for-me