How to fix the thicken mesh that twisted in the process of thickening

[laurent_delrieu]

The problem is there depending of the offset you choose, as you have very thin faces problem is there at quite low offset.
I think attractor could work. So you will have a better transition between vectors.
You could also smooth value with my tool to smooth values on vertex (Nautilus tool), with fixed values on boundary!!
No smoothing

5 steps

10 steps

mesj naked edges v2.gh (910.6 KB)

It is the implementation of this

Discrete Laplacian

If you look in the first example file I posted above - cotanweight_example.gh and inside the function: double[] cotanWeights(PlanktonMesh P, int i) you can see how these weights can be calculated. It looks at a single vertex of the mesh and the ring of connected neighbouring vertices, and returns an array of scalar values, one for each of these surrounding vertices. One simple way of thinking about it is as a way of weighting the vertices so that they properly take into account the areas of …