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[Devel] [Fwd: RE: [OpenType] Phantom points...]
From: |
George Williams |
Subject: |
[Devel] [Fwd: RE: [OpenType] Phantom points...] |
Date: |
11 Mar 2004 15:16:18 -0800 |
Werner, Antoine, I expect you saw this but in case you did not I post it
here...
> I must add that obviously, the "n+2" and "n+3" do not come neither from the
> 'glyf' nor the 'hmtx' tables. Since it is not required, the 'vmtx' table is
> certainly not alone involved in this process. When this table is missing, I
> do not know from where come the informations. I remember Werner implementing
> some sort of hack to deal with such fonts, and comenting the hack was not
> really
-----Forwarded Message-----
> From: Greg Hitchcock <address@hidden>
> To: address@hidden
> Subject: RE: [OpenType] Phantom points...
> Date: 11 Mar 2004 09:32:59 -0800
>
> If there is no vmtx table, the OS/2 typoAscender/typoDescender will be
> used in conjunction with the glyph's bounding box. If no OS/2 table,
> then hhea ascent/descent will be used.
>
> It is only meaningful to move these points if a client is using these
> points for hinted advance heights. Windows only uses them for @fonts.
>
> Greg Hitchcock
>
> -----Original Message-----
> From: George Williams [mailto:address@hidden
> Sent: Wednesday, March 10, 2004 4:03 PM
> To: address@hidden
> Subject: [OpenType] Phantom points...
>
> Microsoft's OpenType spec
> http://www.microsoft.com/typography/otspec/instgly.doc
> says that rasterizers above 1.7 will add four phantom points.
>
> Can anyone tell me what will be the initial placement the vertical
> phantom points in a font without a 'vmtx' table?
>
> And what is it meaningful to move these points if there are no vertical
> metrics?
>
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