Geo model from mesh surface

[Thomson]

Hi everyone!

Emmm, I’m trying to build a geotechnical model from this mesh surface using grasshopper, like below sample photos.

Here is a scanned surface model.

Geomodel.3dm (13.0 MB)

Any help is much appreciated!

KR
Thomson

[laurent_delrieu]

Hello

see the links

Mesh Extrude

I don’t think this needs to be so complicated- Project the naked edges and make new quads connecting the original edges, project the original mesh, then join all these together: [image] projectmesh.gh (16.7 KB)

Mesh Surface to solid Mesh with Grasshopper

You can create a bounding box around your mesh, scale it so there is a good intersection and then subtract the mesh with the normals flipped from the box. [image] [image] mesh_difference.gh (46.6 KB)

Question about mesh ngons

Hello! Got a terrain mesh, which I want to make ‘solid’. [image] Command FillMeshHole will cap this: [image] Hoever, these triangle fans are less pretty. Is there a way to get rid of them in one go? Meshes can indeed contain ngons. Proof: command 3DFace can produce a face with as many vertices as needed (not just 3 or 4). Thanks!

[Thomson]

Hi

Thanks for taking the time to collect these answers .

KR
Thomson