Hi Lewis,

> The thing I wonder now is WHY does MOI import (from Illustrator as Copy/paste) those as broken non closed curves ?

Moi just imports the curves as they are - if they're open curves they will come into MoI as open curves...


> Is there "trick" to import geometry as closed curves somehow ?

The curves have to be closed in Illustrator to import as closed curves into MoI.


> It's closed in vector software - right?

Nope - it's just that vector software doesn't care as much as MoI if the curve geometry is messy or open - for example in Adobe Illustrator you can have an open curve like this:



But even though it's clearly open you can still apply a fill property to it like this:




Just in general the types of operations that a 2D vector program performs with their curves is more tolerant of messy geometry than the types of things you're trying to do in MoI especially with operations involving intersection calculations like Fillet. So it's not unusual to need to examine and rebuild 2D vector imports if they have problems in their curve geometry.

- Michael