--- Begin Message ---
|
Subject: |
Re: [Devel] Re: The guts of yudit-2.xx |
|
Date: |
Wed, 31 Jan 2001 17:03:11 -0800 |
|
User-agent: |
Mutt/1.2.5i |
On Thu, Feb 01, 2001 at 01:08:50AM +0100, Werner LEMBERG wrote:
> > ... I think this happens due to the bug in load_truetype_glyph() but
> > I will have to look into that tomorrow.
>
> `The' bug? Which one? Do you have a patch?
If I am not mistaken load_truetype_glyf() does not do all the calculations
prescribed by the manual.
Check out: http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html
Specifically:
The transformation entries determine the values of an affine transformation
applied to
the component prior to its being incorporated into the parent glyph. Given the
component
matrix [a b c d e f], the transformation applied to the component is:
a c
x' = m * (( --- ) * x + ( --- ) * y + e )
m m
b d
y' = n * (( --- ) * x + ( --- ) * y + f )
n n
where m = max (abs(a), abs(b))
n = max(abs(c), abs(d))
and if (abs(abs(a) - abs(c)) <= 33/65536 then m = 2 * m
if (abs(abs(c) - abs(d)) <= 33/65536) then n = 2 * n
But unfortunately this does not seem to be the cause of the Aring problem,
at least after I modified the Freetype code to calculate m and n
properly Aring still did not look right. Anyway I am still looking into
the problem and I will keep you posted.
Regards,
AG
--
(650) 786-9047 / (650) 786-9553 fax
--- End Message ---