More FL class based Kerning

coop
3.Aug.2006 10.03am
coop's picture

Hi all,

I’m using FL 4.5, and I’m doing the kerning using classes to produce a opentype font. Everything is fine apart form this output I get when I compile the opentype features.

Start of new pair positioning subtable; some pairs may never be accessed: [Y Yacute Ycircumflex Ydieresis] [agrave aacute acircumflex atilde adieresis aring amacron abreve] [WORK:Applications:FontLab 4.5:fontlab.fea 114]

I’ve checked the classes to make sure there is no duplications, and the kerning for the key glyph. The kerning seems to be working fine, so I carn’t work out what’s causing this output.

s.



k.l.
4.Aug.2006 5.41am
k.l.'s picture

Hello! I think all aspects have been touched in other threads already. Spot Adam Twardoch’s description here:
http://typophile.com/node/6373
But these also mention things to consider when using classes:
http://typophile.com/node/19633
http://typophile.com/node/18452
http://typophile.com/node/16413
And a few more:
http://typophile.com/node/27336
http://typophile.com/node/7156
http://typophile.com/node/20052
Seems it’s one of the favorite subjects.  ;-)


dezcom
4.Aug.2006 6.13am
dezcom's picture

Isn’t FL 4.6 a free upgrade?

ChrisL


k.l.
4.Aug.2006 8.48am
k.l.'s picture

I think so. And FL Studio 5 makes some things even easier (like assigning rightside/leftside flags for kern classes right in the classes panel).

However, neither of them would free you of setting up kern classes correctly.  :)

Karsten


dezcom
4.Aug.2006 9.09am
dezcom's picture

Darn it, wish they did :-)

ChrisL


twardoch
5.Aug.2006 12.50pm
twardoch's picture

> Isn’t FL 4.6 a free upgrade?

Even if it was, it is not anymore. We’re not issuing any free updates for FontLab 4.5 or 4.6 anymore. Even though they did help in some matters, these versions of the software are still behind the current font format needs. Especially if you’re making OpenType fonts, I’d definitely consider upgrading to FontLab Studio 5, since previous versions of FontLab simply did not completely fulfill the “best practice” recommendations for OpenType fonts. Unfortunately, the reality of OpenType for the last 2-3 years has been that the OpenType specification has been frozen and a lot of un- or underdocumented fixes and recommendations were issued by Adobe and Microsoft. FontLab Studio 5 takes these into account.

A.


Miguel Sousa
7.May.2008 12.46pm
Miguel Sousa's picture

Adding a few more references to threads related with the Start of new pair positioning subtable; some pairs may never be accessed error,
http://www.typophile.com/node/30567
http://www.typophile.com/node/37959
http://www.typophile.com/node/38773
http://www.typophile.com/node/39456


Miguel Sousa
7.May.2008 1.08pm
Miguel Sousa's picture

And one more,
http://typophile.com/node/45057

(Can a moderator please correct the typo in the thread’s title Kering -> Kerning. Thanks!)