It did not close when I joined it. And so, somewhere in the dozen arcs and/or two dozen lines is a bad joint… open or overlapped. Anyone have a quicker way to find that stray end? Autocad has polyline edit, edit vertex, with which I can walk around the joints until I end at the break or see it do…

CrvStart or CrvEnd will put a point at the start/end of the curve… --Mitch

Thank you very much Helvetosaur; I even tried it and shared it in the office.

The next version of Rhino will have a new command ShowEnds which will also be quite useful for this… --Mitch

I also discovered (not because I forgot the answer you gave me, just saying) Closecrv Which will add a segment to close a polyline, but the segment may be a zigzag and it’s still invisible unless you zoom in and scroll around… But for Noobs like me, try it til you know it.

Well, there is an option that has been added to CloseCrv for the next version of Rhino, which seems like it should just try to close the ends without adding a segment. However, I’m not sure if or how it works… I have a script which tries to close curves by moving both endpoints to an average point…

No need for a script. Match close curves by moving control points. Select the curve near one end, then near the other end. Continuity - Position and Average curves options result in the end points being moved to an average position between the original end positions…

[image] davidcockey: No need for a script. The script closes multiple selected curves automatically… :wink:

@Helvetosaur , all - please check howCloseCrv works in V6/WIP - do you like that better? -Pascal

[image] pascal: please check howCloseCrv works in V6/WIP - do you like that better? @pascal , did you see my post above?

Ah, sorry Mitch - V6 closes curves regardless of tolerance if CloseWideGapsWithLine=Yes and closes by moving end points below tolerance. Do you see that? So, if you want to make sure all curves that look like they are closed are actually closed, you can select all your curves and filter out the on…

Closed polyline has an end somewhere

Rhino Rhino for Windows

efuterfas (Efuterfas) September 8, 2020, 4:34pm 18

Nevermind, @Helvetosaur is a genius

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Closed polyline has an end somewhere

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