Testing OpenType features in Glyphs

Scripting
1

I can’t seem to find it on the forum, so maybe I overlooked. I’m looking for a topic about OpenType feature testing.

Is it possible to test the OpenType features in Glyphs before exporting the font? Fontlab has a similar feature where you can see the features in action and optimize them.

Thank,
René

2

You can select the feature with the popup in the lower left corner of the edit view. You might need to click the “compile” button in Font Info > Features to activate it.

3

Ah yes, fantastic! I was looking for it in the menu, a post-FontLab deformation. I should have realized that Glyphs is much more intuitive.

Georg, you’ve got a fantastic app here. I absolutely love it. Live diacritics is phenomenal. :wink:

®

4

When I try to do this with the open source Japanese font Source Han Sans I see a red exclamation mark next to the pop-down icon which then can’t be selected. I’m specifically interested in viewing all kanji in this font with NLC 2000 alternate forms, i.e. with the ‘nlck’ OpenType feature enabled.

I can see a list of nlck substitutions expressed in cidxxxxx format in Font Info. When I try to compile, I get a MakeOTFerror saying “Syntax error at ‘2000’ missing in Feature file at line 44.”

Is the MakeOTFerror related to the red exclamation mark next to the pop-down?

5

The red exclamation mark means that the features can’t be compiled. Open Font Info > Features and click the compile button to get a error message. To better understand how do fix this: https://www.glyphsapp.com/tutorials/troubleshooting-a-font-that-does-not-export

6

Thanks — I will try to fix with your instructions.