[Gmsh] Command line: remove surface after mesh generation + rounding problems

[kaffee heblerei]

Dear all,

I have two questions.

1. Is it possible to remove surfaces (and their elements) which are only
needed for volume generation from the output mesh using a gmsh call from
the command line (or to include it in the .geo file) as it can be done in
the gui under Mesh - Delete - Surface?

2. Some nodes are written to the output file with a very low order of about
e-18. This causes an error in Calculix. Is there an option to round this
values (to zero)?

Greetings
Stefan
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