[Pkg-fonts-devel] Bug#776273: [googlefonts-discuss] sfd files for Play font

[Dave Crossland]

Hi

On 1 September 2015 at 04:55, <martinerikwerner at gmail.com> wrote:

> Hi,
>
> I'm maintaining the Play font in Debian, which currently builds the Play
> font from the sfd sources (attached) which was present in the google code
> repository. And I've been trying to figure out a bug[0] where the sfd files
> generate a rather different font than the ttf files provided by google
> webfonts.
>
> First, I noticed that the sfd files are now gone with the move to GitHub,
> does this mean that the ttf files would be considered the canonical source
> for the font?
>

All the source files there not available elsewhere will resurface in
github.com/googlefonts/ soon :)


> Second, I have a few fixes that I've applied as a patch (attached) to the
> sfd files, to fix intersection, naming, and integral points, which still
> seems to be relevant for the current ttf files as well?
>

Sadly the RFN is a problem here.

The guy who did this, Jonas Hecksher, left the PlayTypes foundry, so it is
de facto abandoned.

And the RFN -
https://github.com/google/fonts/blob/master/ofl/play/OFL.txt#L2 - means how
to move forwards is tricky.

BTW I believe that Debian must rename all OFL-RFN fonts (just as with
Firefox.)

Another good reason why I strongly recommend against RFNs!


> Lastly, and the main point, is there any specifics on how to generate the
> ttf files from sfd sources to make sure they are as similar to the google
> web fonts ttf:s as possible?
>

The *-TTF.sfd files were the exact TTFs in SFD format, so generating them
more or less directly should do that; the export would need a few 'default'
flags, like this:

https://github.com/ManufacturaInd/tinytypetools/blob/master/fontconvert/fontconvert#L131

-- 
Cheers
Dave
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