Hello Forum!
I have a case, where I want to extract skeleton/guidelines from a pointcloud/mesh and it bothering me, that I don’t have any idea how to do it nicely 
The main idea of the definition is to generate different topological optimised designs.
The points are created wth the nice plugin tOpos ( https://www.food4rhino.com/app/topos ).
The solver of the plugin optimizes the distribution of material/points in a boundary/box ( if I understand it correctly) After that I get a pointset, which I can use to create isosurfaces/voxels.
But I don’t get the main axis, that I can use to design framworks or similar.
There are some threads about medial axis etc. But most of them are for 2D-cases.
I also tried the skeletonizer of capybara ( https://www.food4rhino.com/app/capybara ), but without success ( works in some cases, and in others not), maybe I don’t use it correctly.
I tried different approaches to extract these lines, for example I used Shortest Walk, but still no success.
So the main question would be, how to extract medial axis from arbitrary 3d-points-set/meshes.
I think one answer could be to construct a graph, and using skinning algortihms or something like that.
Check the images for further understanding:
There is a nice paper about this topic :
http://visgraph.cse.ust.hk/projects/skeleton/
I would love to hear some ideas!
Thanks,
Bumaye
Skeleton_PointsandMesh_Forum.3dm (792.1 KB)