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Re: [ft] What do kerning values mean in RTL text?

From: David Turner
Subject: Re: [ft] What do kerning values mean in RTL text?
Date: Tue, 13 Jun 2006 15:14:22 +0200
User-agent: Thunderbird 1.5 (Windows/20051201)

Werner LEMBERG a écrit :
- Do kerning pairs in RTL refer to two sequential glyphs in
  logical order or visual order?
At least for TrueType and Type 1 fonts, it only refers to visual

OpenType features in GSUB and GPOS tables are always processed in
logical order.

OK, but this is irrelevant to the developer who wants to use the kerning values returned by FT_Get_Kerning, which are always in visual order, from my own experience with
various Arabic fonts.


- David Turner
- The FreeType Project  (

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