Re: [ft-devel] ttfautohint: How to install

[vernon adams]

The 'final image' is simply the ttfautohint instructions with the addition of 
links (double links work best in this instance). I did no extra hinting from 
fontlab - what you see afaik is pixel fitting from the ttfautohint 
instructions, plus the effect of the additional links.  Sadly Fontlab has no 
function to see or manipulate the actual TT instructions, so i can't see what 
how the actual instructions differ when i add the links.

I think it's interesting that if i look at the same font in FontForge's 
Gridfitmode, then i don't see the egging issue at all. Is it possible that 
Fontlab's TT rendering is much more like the microsoft engines? It definitely 
looks like the rendering in the screenshots i took from Windows7.

Is any of this helping ?  :)  I'm temped to look at the font in MS 
VisualTruetype and look at the raw instructions when i add links.


-vern



On 30 Jun 2011, at 09:27, Werner LEMBERG wrote:

> 
>> (above) Upper case 'O', ttfautohint version, opened in Fontlab
>> 'Truetype hinting' mode, showing alignment zones & pixels arranged
>> by ttfautohints instructions. 27 ppem.  Note the egging at top
>> curve, as snapping is to pixel at TOP of alignment zone.
> 
> Thanks.  Is your image the final result of the hinting process with
> FontLab?  I get a similar result (i.e., the egged shape) only before
> applying the last instruction of the glyph, IUP[y] (in function 47)...
> 
> 
>    Werner