Western Hemisphere land.stl (1.1 MB)
I have an open polysurface (green) that I am trying to extrude to the base plane (blue), but it only extrudes the outer edges leaving me with a hollow polysurface (black). I would like a way to make this a solid, closed polysurface. I have tried joining the existing polysurface to the extruded portions, but it is unable to join for some reason. Similarly cap does not work because the polysurface is not planar. Is there a way to extrude the surface so that it is solid, or a way to close the extrusions with the polysurface so that it becomes solid?
Minimal experience with rhino. But the file I uploaded is just an exported .stl file of what I’m working with (my apologies). For this file, I used MeshtoNURB to make the mesh a polysurface, however, it is still open and therefore hollow. Is there a way to make the open polysurface closed so that it is solid.
