pub fn mass_report(reader: &Reader<'_>, scope: &Scope) -> GeopResult<MassReport>Expand description
The mass properties of every solid of the part reader reads — its own,
and those of the parts placed in it, where they are and of their own
parts’ materials — and of all of them together, those scope asks
about. A part placed many times is integrated once. Stopped part way
(see geop_core_program::watch), it says how far it got.