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Re: [ft-devel] How can I do to make the font a little thin?

From: david turner
Subject: Re: [ft-devel] How can I do to make the font a little thin?
Date: Mon, 13 Feb 2006 10:27:48 +0100
User-agent: Thunderbird 1.5 (Windows/20051201)


Werner LEMBERG a écrit :
I use simsun.ttf(宋體),the upper is the image which use FreeType
2.0.9,and the lower is which I want to get.
You can pass a negative strength value to the FT_Outline_Embolden.

Does this work reliably, this is, does it respect a minimum thickness?
Negative values might be worth mentioning then.

Just like for positive thickness, it certainly doesn't work reliably past a certain threshold that heavily depends
on the glyph being processed.

Keep in mind that the emboldening/thinning algorithm doesn't change the number of points in the glyph, so
certain corner cases like very acute angles or intersections are not going to be handled properly anyway.

Apart from that, it should work ok for very small negative values, i.e. values that are much smaller than the
average stem/stroke width within the glyph.

Hope this helps,

- David Turner
- The FreeType Project  (


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