cgal polyhedron demo (mean curvature flow skeletonization)

[zahrakheyrollahi]

Issue Details

hello
i am trying to extract skeleton and visualyze it.
i use the code from this site
(https://doc.cgal.org/latest/Surface_mesh_skeletonization/index.html)
and it works،And I got outputs like picture:

But I want to output like the following figures

I installed polyhedron demo, but I don't know how to give it input and apply the skeleton method

Environment

• Operating system (Windows 64 bits
  wsl ubuntu 22.04):
• CGAL version:5.6
• Boost version:1_83_0

[afabri]

You have to load a file first. And then you will find skeletonization in the Operations drop down menu.

[zahrakheyrollahi]

Hello, thank you for your reply. I was able to get the mcf (mean curvature skeletons) output.

My question is how can I get medial axis outputs like the figure in part b?

[sloriot]

This is only the intermediate state of the mesh that is contracted along the mean curvature flow. You can see it evolving by calling "Run one iteration".

[zahrakheyrollahi]

Is there a separate algorithm or code (without skeleton) in cgal to implement the medial axis in three dimensions?

[sloriot]

We only have this package that is able to compute skeleton in 3D.