Converting mesh shell into solid body

Question

I have a .obj file of an geometry and when I open it on MeshLab it opens as a shell i.e. hollow object. Is there a way to fill (and mesh) the shell? Note: Need not be necessary that I use MeshLab

I need to remesh the object to perform the simulation so every face of the mesh is treated as a face and not a mesh. I remesh has to be done on a 3D body so can I fill the body to make is a solid 3D object instead of a surface 3D object?

Answer 1

Meshlab does not have the concept of a "solid" or "hollow" mesh. As long as your mesh is closed and manifold (it looks like yours is - if it isn't, you can probably fix it using a combination of filters like Cleaning and Repairing -> Repair non Manifold edges by removing faces and Remeshing, Simplification and Reconstruction -> Close Holes), this is something you will need to configure in your simulation software.

Answer 2

Solidworks 2021 can open obj files

If those triangles are imported as separate surfaces, you can use "Knit Surface" from the surfaces toolbar to make them as one and even better make a solid out of it (there may be not gaps between the triangles in this case)