Hello All, I have a set of sufaces that are rotated, with coplanar curves on top of them: [rotate] I would like to group them so that I can sort them by coplanarity like this: [image] 1: [image] 2: [image] 3: [image] how can I do this? gh file internalized: group curves and surfaces b…

[group_crvs_2025Jan8a] group_crvs_2025Jan8a.gh (20.9 KB)

That’s a classic hard flat clustering task using just one criterion: coplanar Planes (derived from planar BerpFaces: using the TryGetPlane(out plane, tol) RC Method). Obviously if you cluster the Faces (by index) you have the Outer/Inner Loops clustering on hand as well. That said if you want Faces …

Thank you, is there no way to make it using existing components only? if not the yes I would appreciate the C# script!

[image] Rteuman: existing components only? That’s not my game (at all). So let’s wait … and if nobody provides such a solution I’ll post the C# mentioned.

Lol, it’s so bad, it almost funny. :joy: [image] Lines co-planar to planar surfaces _ vr.gh (18.7 KB) (Don’t use this. It works, but it can be done without text manipulations)

Oh, thank god. I was doing the dumbest :poop:

Thank you Joseph!! This is great. Thank you everyone for your help!

I’m going to save that cluster.

Group surfaces and curves based on coplanarity

Grasshopper

Joseph_Oster January 8, 2025, 8:43pm 10

Which one? There are two. isEqual has a useful default (‘B’ = 0) and a ‘T’ (Tolerance) input, default = 0.0001

The other cluster ColorBa is explained here:

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Group surfaces and curves based on coplanarity

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