[softwarelist] Re: Fonts again
- From: Martin Wuerthner <public@xxxxxxxxxxxxxxx>
- To: <davidpilling@xxxxxxxxxxxxx>
- Date: Thu, 22 Dec 2011 18:05:07 +0100
In message <90D64010AA8C48E0ACDF77AE8A6CE994@Shuttle>
"Bruce Goatly" <bruce@xxxxxxxxxxxx> wrote:
> Dave Symes wrote:
>> As an aside to all this, does anyone in the Universe have a copy of Dr
>> Fonty that'll actually do something useful with regard to PS output?
>>
>> The version I have here (1.44) will not on RO 4.39 nor on 6.20
>>
>> BTW. It's a legit copy with a serial number.
> I have FontFiend (also from iSV), which seems to save simple RO fonts to
> PostScript, but the bowls of letters such as b and o fill in. I think
> I need to check a winding rule option somewhere.
I doubt it is as simple as checking a winding rule option. RISC OS
fonts can use an even-odd or a non-zero winding rule. Non-zero is
simple because that is what PostScript Type1 expects, but if the RISC
OS font uses an even-odd winding rule, then it needs to be converted
from even-odd to non-zero, and that is a difficult problem because the
non-zero winding rule is sensitive to subpath direction.
Your description above suggests that FontFiend does not know how to do
this conversion correctly. The PostScript 3 driver gets this right,
but it was a major effort to write that code.
Martin
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