Draw curve around the outer points of a list of points

Grasshopper
1

Hi,

It looks fairly (and probably is) but I cant find out.
I would like to draw a curve around a cloud of points.

The hull command only select the outer 4 corner points.

any suggestions?

2020-06-20 convex points with line.gh (7.6 KB)

thanks :slight_smile:

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2

This can be one solution.

2020-06-20 23_25_44-Rhinoceros 6 Commercial- - Perspective
2020-06-20 23_25_44-Rhinoceros 6 Commercial- - Perspective1222×509 40.9 KB
2020-06-20 convex points with line_ Naked boundary.gh (8.5 KB)

3

Convex Hull is named convex for a reason…

I googled for concave hull and found this:

https://www.codeproject.com/Articles/1201438/The-Concave-Hull-of-a-Set-of-Points

If you want to draw a curve around the outer points, you can use Metaball. The resulting curve will not go through the points however.

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image1274×784 50.3 KB

This forum has a few threads on this topic already:

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