This is fairly rare, but here is an example… I know why this happens, as the curve has a “T” intersection and somehow it becomes non-manifold when selecting all in example 1 and joining. However, I wonder if this shouldn’t be detected/special cased? In example 2, even if you join all but the last…

Hi Mitch - I guess it is part of how joining works in V6+ - contiguous lines are made into polylines as single segments of a polycurve - in this case the polyline part closes on itself but maybe since it has all already been accepted and sent to the joiner it ‘allows’ this. Anyway, thanks for the ex…

[image] pascal: stop making stuff up Yeah, quit that right now!! :stuck_out_tongue_winking_eye:

Can… but won’t. [image] https://mcneel.myjetbrains.com/youtrack/issue/RH-56877 -Pascal

Joining curves makes a bad object

Rhino Rhino for Windows

brian (Brian Gillespie) November 17, 2021, 4:57pm 5

RH-56877 is fixed in the latest WIP

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Joining curves makes a bad object

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