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Re: [ft-devel] Bengali support in FreeType ttfautohint

From: Werner LEMBERG
Subject: Re: [ft-devel] Bengali support in FreeType ttfautohint
Date: Sat, 02 Jan 2016 07:14:25 +0100 (CET)

> I tried HINTING_TOP_TO_BOTTOM for Latn. The results are obvious: it
> changes the position of any middle stem quite dramatically:
> sometimes for better, sometimes for worse. e's with top diacritics
> suffering the most as they loose consistency.  So yeah, years of
> tweaking for BOTTOM_TO_TOP show.  Perhaps working with "wrong"
> direction intentionally can help iron out real bugs.  Werner, you
> should check it out.  It is kind of striking.

:-) A possible solution is to define a blue zone to start with
(obviously the script's baseline), then handling all other zones.
Right now, the auto-hinter always sorts the blue zones according to
its vertical coordinate, either ascending or descending.


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