Smart Ribbon along mesh

[vikthor]

I want to create a Ribbon along mesh starting from a single guide curve
I mean that I want the tape to be dynamic and adapt to both the change of the branches and the shape of the curve.

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The problem with this definition is that the flow deforms due to the difficulty of creating the ribbon following the given path “the curve”

Curvature-Ribbon-along mesh.gh (463.2 KB) Ribbon-along mesh.3dm (71.5 KB)

[CJ1 (cj)]

Hi is there a method to create a ribbon a long a spine on a mesh (ortogonal i guess) to make a clean split? I managed to get the mesh and curve pulled to the mesh but i would need a clean split in two meshes along that unregular spline. A big patch does not work as well…

Thanks a loT!

[laurent_delrieu]

Hello
If you want plugin I have a ribbon tool to do that in Nautilus plugin
Here an example of use and bug in r7

Bug in Mesh Split

Hello I want to cut a Mesh using MeshSplit, but I need to have clean grouping of mesh parts. For some mesh it works but for others it fails, there are too much parts and sometime bad cuts. See here an example in the grasshopper file. I have the same problem in Rhinoceros. [image] bug mesh split.gh (488.7 KB) The cutters are a polyline that is extruded. Gyroid and Polyline generated here by @DanielPiker I think I was able to make my own tool Not bad 7.7 s vs 5 s with Legacy …

You need a good precision to remove some bugs

cut_geometry_with_curves.gh (7.4 KB)

And if you just want ribbon use Polyline Extrude Both Side of Mesh

make_ribbon_from_curves.gh (7.3 KB)

Or is is also quite simple to dot that with components
Divide the curve
Search notmal for each point
Move point up and down
With 4 points of a segment make a mesh face
Join the faces