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Re: [ft-devel] Clean-up of af_loader_load_glyph()

From: Werner LEMBERG
Subject: Re: [ft-devel] Clean-up of af_loader_load_glyph()
Date: Sun, 06 Nov 2016 05:47:21 +0100 (CET)

>> Sorry, bad wording.  I mean that the user wants to position the
>> glyph at a non-integer x value, and the auto-hinter tries to `warp'
>> the glyph horizontally so that it still gets aligned to the grid.
> Ah, so fractional advance widths?


> Aren't these conceptually incompatible with the autohinter method of
> snapping outer edges to the grid to achieve sharpness?

I don't think so, cf. the `warping' code in the auto-hinter.

> The only thing you could do would be to adjust stem thickness, but
> the autohinter doesn't do that iirc?

Correct, no stem thickness adjustment.  The warper does scaling and
shifting instead, trying some configurations until it finds a best


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