Mesh entities- Ngon problem

[Petras_Vestartas]

Adjacency is computed correctly once you create mesh from polylines.
I internally create ngons for triangles and quads to have more consistency, so it works for 3,4, 5 … n vertex faces. These are a few adjacency components, there are more of those under vertex, edge, face tabs:

So you could operations like this:

Joints between elements

Here is the example file. It is only geometry that could be 3D printed while real fabrication methods require much different cutting strategy. @hessel40 Thank you for calling me with all possible accounts [PetrasVestartas] We did this version old time ago using solid lumber: [FullPhoto8] Hexagram Bricks NGon.gh (65.5 KB)

Orient Geometry by Edge and Srf-Normals

I think you are searching for vertex adjacency. [image] orient_geometry_from_point_to_edge_VertexAdjacency.gh (24.9 KB) Or edge face adjacency: [image] orient_geometry_from_point_to_edge_EdgeFaceAdjacency.gh (47.6 KB) First concept give info about vertices that are around nth vertex and other concept gives info about edge and its neighbour faces: [image] I used NGon for getting this info about mesh topology: