Starting with getting objects on a layer, I am trying to combine into a mesh.
objs = Rhino.RhinoDoc.ActiveDoc.Objects.FindByLayer(layername)
When going through the objs and running into a mesh:
rs.coercemesh(obj) returns None
obj.ObjectType returns MeshObject: (unamed)(-xxxxx)
rs.IsMesh(obj) returns False
mesh.Append(obj) returns an Error: Expected Mesh, got MeshObject