Method flatten

src/ifcgeom/taxonomy.cpp:543–549

ifcopenshell::geometry::taxonomy::collection::ptr ifcopenshell::geometry::flatten(const taxonomy::collection::ptr& deep) {
	auto flat = make<taxonomy::collection>();
	ifcopenshell::geometry::visit<taxonomy::collection>(deep, [&flat](taxonomy::ptr i) {
		flat->children.push_back(std::static_pointer_cast<taxonomy::geom_item>(clone(i)));
	});
	return flat;
}

const std::string& ifcopenshell::geometry::taxonomy::kind_to_string(kinds k) {
	using namespace std::string_literals;