What are the dotted lines in Master Compatibility?

[Bendy]

The purple dotted lines are a bit confusing, what do they signify? There are three anchors on every master.

[mekkablue (Rainer Erich Scheichelbauer)]

Anchors?

[GeorgSeifert]

Maybe there is an anchor only in one master?

[Bendy]

Like I said, there’s exactly three anchors on every master. Those are connected by the solid green lines. Here on another glyph:

[GeorgSeifert]

can you run Path > Tidy up Paths

[Bendy]

That didn’t have any effect unfortunately

[GeorgSeifert]

Can you send me that file?

[SCarewe (Sebastian Carewe)]

Is the glyph used as a component in any other glyphs? What happens if you run

for l in Layer.parent.layers:
    for a in l.anchors:
        print(a)

[Bendy]

The lines are showing on every glyph.

Running that script produces this:

[mekkablue (Rainer Erich Scheichelbauer)]

Traversing anchors (inside the components) maybe? They shouldn’t show up in compatibility view though.

[GeorgSeifert]

Those extra lines are the anchors for the italic masters that are drawn with the wrong offsets. I fixed it.

[Bendy]

Ah phew, glad there was an explanation! Thanks Georg