Intermediate: Interpolate at 110 and export as 100

Glyphs
1

Hi,

I have a feature request for the Intermediate Layer.

For me, this is a typical scenario: In a two masters font (monolinear) I work with a lot of Intermediates, as the Black Master needs many adjustments, for example the lowercase /s: normal stem width is 200, for the /s in Black its 180.
The generated Intermediate at 100 is too light, the stems will probably have a stem value of 90 instead of 100. That’s why I generate the Intermediate at 110 and manually set the value back at 100, without to interpolate again. That way, the stems will have the width of 100.

I think it’s possible to have a smarter workaround for that. Something like
{Interpolate at 110 & Export as 100}
{110 @ 100}

Does this make sense? For sure, afterwards the alignment zones need to be adjusted, also the anchors might be places too high.

2

That extra value would only be needed when re-interpolating. Adding that functionality to the intermediate UI would be more confusing than it would help. Some other place or re-interpolation function should cover that. I’ll have a look