Inset contour – no perfect circle in counter. Possible to change interpolation?!

emjay · February 25, 2024, 9:30am

Hi, I am new to glyphs.
I am trying to use the contours for a geometric font and I need to draw a perfect circle. However, when I set the contour to inset or center, there is no perfect circle in the counter but it gets squished. I do get a perfect circle when I set the contour to outset – but this is extremely unpractical since I want to be able to change the contour width quickly without having to resize the glyph.
Is there a way to change how this is interpolated? I don’t know python yet but I do know programming languages (php + javascript), so if it has to be a script, I am willing to dig into that as well. But maybe – finger crossed – there might be an easy setting that I missed somewhere?

Thanks for any hint regarding this!
Jonathan

mekkablue · February 25, 2024, 11:37am

The algorithm compensates the curvature for the inset. If you want the exact same curvature, better duplicate the shape and scale it down.

emjay · February 26, 2024, 4:39pm

hmm… okay, thanks Rainer, maybe you could take that as a feature request to turn the compensation off? It’s a great idea to have that but in some occasions (like mine right now creating a geometric typeface) it’s in the way.

GeorgSeifert · March 13, 2024, 11:03pm

Can you please try the latest cutting edge version. It is fixed there (for some time already).