Cut Cut V0.gh (18.0 KB) So, I have a Pikachu, I like to split it into two parts, the bun and the body. Now I have the cutter edges as lines and also indexes of the edges. How can I split the mesh with these two data? I can do it in many ways, but I really like to know how to split a mesh with it…

I once wrote something similar, though with a different/slightly simpler method for getting the topology edges to unweld. It might be relevant to this great topic you are having (this is Rhino 7): [2023-12-30 14_12_49-Grasshopper - 231230_SplitMeshAtPolyline_00_] 231230_SplitMeshAtPolyline_00.gh …

Thank you all! I found this. Seems promising. I am now trying to implement it with my very very limited C# knowledge. [image]

[Screenshot 2023-12-29 at 11.43.41] Here’s a way simpler Python script that splits a mesh along an edge loop: """Splits a mesh along an edge loop.""" __version__ = "0.01 (2023-12-29)" __author__ = "diff-arch (diff-arch.xyz)" import Rhino.Geometry as rg import scriptcontext as sc import copy MT…

Here’s a more capable, improved version of my script! [Screenshot 2023-12-29 at 17.21.49] It now supports multiple loops to split a mesh and it it doesn’t rely on a completely welded input mesh any more, which has several benefits. Instead it makes a copy of the input mesh, welds it internally, s…

For some reason it doesn’t work on R8 [image] Very strange GetSegments is there since R5 https://developer.rhino3d.com/api/rhinocommon/rhino.geometry.polyline/getsegments There is also another way I implemented in order to keep a unique mesh. I added a material index to each face. This allow to…

[image] Laurent Delrieu: For some reason it doesn’t work on R8 Works fine for me! It’s been created in Rhino 8 (8.2.23346.13002, 2023-12-12) for macOS.

I guess ‘unwelding’ isn’t ‘splitting’, but: [image] Unweld mesh edges by indices Grasshopper Developer Try this: [2022-04-23 22_54_36-Window] unweld by indices.gh (12.1 KB)

I copied the script in R7 and it works. Seems to be a Rhino/Python bug in R8 Windows. @eirannejad does I miss something (a library to install ?) Rhino 8 SR3 2023-12-26 (Rhino 8, 8.3.23360.13001, Git hash:master @ eb46d24144907458c3e3bb82d501b5499b1c4a49) License type: Commerciale, build 2023-12-2…

[image] Laurent Delrieu: I copied the script in R7 and it works. Interesting. I guess there’s no conflict between IronPython and Python 3 then in this case, because it’s a Python 3 script. :wink: You’re running Rhino 8.3! Is this a nightly build? I’m on Rhino 8.2, which seems to be the curre…

Hi this bug is in my Rhino8 too.(in python script)windows 11 rhino_sr4

cut mesh by edge V0.gh (1.1 MB) Thank you all for your help! I found one works exceptionally well. It was written by @Rh-3d-p . I cannot find the original post. Here I use projected curve, but you can also use edge loops. Not tested in R8. private void RunScript(Mesh M, List Edges, ref ob…

How can I split mesh by edges?

Grasshopper

René_Corella (René Corella) December 29, 2023, 5:39pm 12

I guess ‘unwelding’ isn’t ‘splitting’, but:

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How can I split mesh by edges?

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