Make Line from points

[HS_Kim]

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Sorting point question

good evening everybody, I came across a problem today. -I have x amount of points -out of this pool of points I would like to extract just the points at the perimeter -then connect those points with a closed polyline ,creating an outline. It is easy with the example shown but becomes tedious if you have to deal with 50000 points. I would appreciate if someone could help me with this problem. Thank you!!! sort point.gh (4.3 KB) sort point.3dm (167.3 KB)