[mpeg-OTspec] Composite Font Standard 2009/12/16 DRAFT

[John Hudson]

Ken wrote, in response to Karsten:

> In terms of your specific question, someone who has more experience dealing with curs, mark, mkmk, and friends should take a crack at answering it.

It's a tricky question, because in theory the problem of transformations 
to GPOS lookups is not feature-specific but could apply to any GPOS 
lookup in which there is both an x- and y-direction adjustment. If a 
slant transformation is applied to glyphs, then there needs to be a 
corresponding horizontal adjustment relative to any y-direction value in 
the affected lookup. In practice, this is most likely going to affect 
attachment lookups, i.e. anchor attachment or cursive attachment in the 
features that Karsten has identified. But in theory, since any GPOS 
lookup may have a y-direction value, it could affect even something like 
kerning.

JH

-- 

Tiro Typeworks        www.tiro.com
Gulf Islands, BC      tiro at tiro.com

Car le chant bien plus que l'association d'un texte
et d'une mélodie, est d'abord un acte dans lequel
le son devient l'expression d'une mémoire, mémoire
d'un corps immergé dans le mouvement d'un geste
ancestral.  - Marcel Pérès