Kerning question FontCreator 7.0 pro

[uhighlogic]

If I do kerning manually or through the auto kerning feature will the kerning pairs also be exported to GPOS when I choose KERN and GPOS in the Font Export Settings?

[Bhikkhu Pesala]

Here's a screen shot of the Features in one of my fonts recently exported from FontCreator 7.0 — as you can see, it has a Kerning Feature, so I think the answer to your question is "yes."

Kerning Pairs Feature.png (19.83 KiB) Viewed 8652 times

Both KERN and GPOS tables will be added if you select that option in the Export Settings dialogue. Available options are None, KERN, GPOS, or KERN and GPOS.

Kerning Options.png (15.02 KiB) Viewed 8652 times

[Erwin Denissen]

Excellent answer. No need to say more

[William]

How was the upper image produced please?

Also, as the original question asked about GPOS, how does an image showing the presence of kern illustrate the presence of a GPOS table?

Does the font have both KERN and GPOS? If so, how is that indicated in the upper diagram please?

Puzzled and hoping to learn.

William Overington

17 July 2013

[Alfred]

How was the upper image produced please?

I presume that you aren't asking how to take a screenshot!

If you have a 32-bit version of Windows, installing the Font Properties Extension from Microsoft Typography will provide you with the extra tabs in the Properties dialog.

[Bhikkhu Pesala]

Also, as the original question asked about GPOS, how does an image showing the presence of kern illustrate the presence of a GPOS table?

As it says on the dialogue —

Above shows supported Scripts, Language Systems, and Features in GSUB and/or GPOS in OpenType layout tables,

The highlighted kerning (kern) feature uses GPOS tables. KERN tables don't use OpenType layout GPOS features and are supported by PagePlus, which does not yet support GPOS tables.

Adobe fonts only have GPOS features, so kerning doesn't work in PagePlus etc.

[William]

Thank you.

William

[uhighlogic]

Adobe fonts only have GPOS feature...

Thank you for your explanation.
When I open Myriad pro from Adobe in FC, how can I access the GPOS features? I can't find any kerning data in the Open Type Feature Editor.

[Bhikkhu Pesala]

When I open Myriad pro from Adobe in FC, how can I access the GPOS features? I can't find any kerning data in the Open Type Feature Editor.

You cannot. FontCreator doesn't support GPOS yet.

[León Fridsma]

When I open Myriad pro from Adobe in FC, how can I access the GPOS features? I can't find any kerning data in the Open Type Feature Editor.

You cannot. FontCreator doesn't support GPOS yet.

It supports GPOS in the sense that it can create a GPOS table based on simple kerning pairs. Full control over GPOS and kerning pairs with more than 2 members are not supported yet. The kerning pairs you see, edit and create in the kerning window can be saved in GPOS as previously explained above.

[uhighlogic]

It supports GPOS in the sense that it can create a GPOS table based on simple kerning pairs. Full control over GPOS and kerning pairs with more than 2 members are not supported yet. The kerning pairs you see, edit and create in the kerning window can be saved in GPOS as previously explained above.

Does that mean if I alter a font in FC that has its kerning data stored in GPOS only, all original kerning information will be lost?

[uhighlogic]

Mr. Fridsma?

[Erwin Denissen]

In that case all basic kerning pairs will remain, but more complex positioning information will be lost.

So basically you won't loose a thing if the original GPOS table only contains basic kerning pairs.