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Re: [ft-devel] Signed distance fields: distance from any point to the gl
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From: |
Alexei Podtelezhnikov |
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Subject: |
Re: [ft-devel] Signed distance fields: distance from any point to the glyph contours |
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Date: |
Wed, 31 Oct 2012 10:25:45 -0400 |
On Tue, Oct 30, 2012 at 6:56 AM, Nicolas Rougier
<address@hidden> wrote:
> My question relates to a more direct way to compute the signed distance and
> to know if anyone has already coded it by any chance ? Said differently, is
> there a quick way to compute the shortest signed distance from any point
> (x,y) to the glyph contours ?
Quick? I do not think so. A glyph outline is a collection of contours
is a collection of straight segments and Bézier curves.For the
straight segments it is trivial. It is very difficult but surely
doable for the conic and cubic curves. No it is not implemented.