Medial Axis generation from 2D mesh or Multiple Curves

[Terence_Szeto]

Hello everyone,

I am currently working on a topology optimization task and have a 2D mesh, may I ask is there any workflow / ways that I can extract the medial axis (red curves) from the mesh or its smoothed naked curves? Thank you very much！

[laurent_delrieu]

Hello
best advice do it by hand !
There many examples on this forum of tools to find Medial Axis.

Here one result using curve

A bitt better with using a tool to have a Skeleton of an image (image thinner 3 in Nautilus plugin)

[Fabio_Franchetti]

I had a similar problem and found an approach described here, which seems to be the same as the one used by the Nautilus component.
If you want a better understanding of the solution, take a look at steps one and two of the article.

[laurent_delrieu]

Yes I use one like this and one more “geometric” but under the hood it transform curve to lines and arcs then it make a “roof” => 3 types of medial Axis
Butt, Round, Square