How to capture mean curvature in Grasshopper?

Grasshopper
1

I want to capture the minimum curvature of something in grasshopper, does anyone know how?

Thank you.

2

Minimum curvature something ?
Like, the most straight part of a curve?

3

Apologies, I was meant to write the mean curvature, not minimum, the mean curvature of a mesh

4

Ok, if so, if you can, try to correct this post title and your posts message (just to let search engine works better…).
“Minimum curvature of something” and “mean curvature of a mesh” are quite different… :sweat_smile:

Unluckily for you, a mesh is one of those geometries that have no curvature (no min, no mean, no max).
You can build up some logic to “interpret” a mesh shape as curvature, but you’ll encounter many exceptions and odd cases.

May I ask why you need this?

5

White is minimum, blue is maximum curvature on this curve.

curvature_2023Feb7a
curvature_2023Feb7a1228×257 51.4 KB

curvature_2023Feb7a.gh (6.8 KB)

Showing the curvature vectors with a ‘Magnify’ slider:

curvature_2023Feb7b
curvature_2023Feb7b1238×487 80.1 KB

curvature_2023Feb7b.gh (8.4 KB)

1 Like
6

Thank you Joseph

7

Thank you Riccardo, I am unable to delete the thread, I have flagged it for admins to review, hope they can sort it.

Also I need it for my Kangaroo simulation, I am simulating a flat state shape forming a dome like shape using constraints.

Thank you for the help.

8

The NGon plugin contains a Mesh Curvature component.

mesh curvature
mesh curvature842×205 16.5 KB

9

Thanks!