Hi everyone ! I am trying to define ankerpoints for my kangaroo model. the points marked in red should be culled. More specific: all middle points of these red lines that have a smaller distance to all other points than to the end points of the red lines . It works for the three lines on the rig…

Assigned to Grasshopper category so it will be seen.

“anchor points” :question: [image] Help Us Help You Grasshopper Asking questions and getting answers is what this forum is all about. Although people are generally very helpful, there are things you can do to improve your chances of getting good and quick answ…

yes I meant the anchor points, the gh file is attached and the important part is grouped in red. cull_anchor_points.gh (31.5 KB)

I cant see your model without the 3dm - what are you trying to do anyway? are you trying to cull all the point that is on the line?

yes exactly, I want to cull all points on the red line. The outline is internalized and the model should be created with kangaroo.

Hi Cevanna, are you aware that your lines form some sort non-linear polyline? [grafik] if not, you could make it with discontinuities: [grafik] cull_anchor_points_BDE.gh (39.2 KB) although it’s a slightly lazy solution and unorthodox ( @Joseph_Oster probably will rightfully rip the solution …

Similar to the solution by @benedict but using Mesh Shadow component to get starting polyline then shatter at discontinuities, cull unwanted segments, and explode gives desired points. [culling_anchorpoints_01] [culling_anchorpoints_02] cull_anchor_points_kr01.gh (40.7 KB) -Kevin

[image] Ben: ( @Joseph_Oster probably will rightfully rip the solution into pieces) WHAT :question: :exclamation: I have zero in this topic so haven’t looked at any files posted here. :zzz:

Usually you provide very nice and precise solutions, once you’re interested in a topic. [image] Joseph_Oster: “anchor points” :question: I thought you were already interested in this topic. :slight_smile: sorry if I assumed wrong.

Culling anchorpoints

Grasshopper Kangaroo

Joseph_Oster December 12, 2023, 4:36pm 3

“anchor points”

3. Attach minimal versions of all the relevant files

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Culling anchorpoints

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