Re: [Freetype] FT_FaceRec->max_advance_height

[Wallace Chigona]

Hi David,

I am using AdobeSansMM.  It's a multiple master font which comes with
Acrobat reader.

Regards,

David Turner wrote:
> 
> Hi Wallace,
> 
> Wallace Chigona a écrit :
> >
> > Hello,
> > What does the FT_FaceRec->max_advance_height really represent?
> >
> > I have 2 problems with this values.
> > (1) I am getting a negative value.  How can height be negative?
> > (2) Regardless of the  pixel size , i.e FT_Set_Pixel_Sizes(face, 0,
> > aSize ), the value does not change.
> >
> > I am I doing something wrong?
> >
> 
> This value is only relevant when a font contains vertical
> metrics (this can be tested with the macro FT_HAS_VERTICAL(face)).
> It should be ignored otherwise. I'm a bit surprised to see some
> negative value however. In which fonts does this happen ??
> 
> Second, the value is expressed in font units, and doesn't depend
> on the current size/scale.
> 
> Regards,
> 
> - David

-- 
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Institut fuer Simulation und Graphic, Uni. Magdeburg
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