No .mesh file outputted using meditview flag

[MichaelHillier]

I use the meditview=1 and metric=1 flags to try to output a .mesh file (Medit file format) however no file is generated. Looking at the tetgen source code this is where is writes the file

if (!out && b->meditview) { m.outmesh2medit(b->outfilename); }
Not sure how to fix this since b->meditview and b->metric are true. Even if b->outfilename is NULL it writes a unnamed.mesh file (from the code) so I don't know why its not writting the file. You have a solution?

Also, unrelated I have a suggestion for returned output: output edges [N_edges, 2] array where each row is the point indices of points connected by edge. Would require adding ReturnEdges function in class PyTetgenio and tapping into "int *edgelist" from tetgen.

Thanks for your work supporting tetgen on pyvista :)