Function fix_quantities

src/ifcconvert/IfcConvert.cpp:1536–1739

}

void fix_quantities(IfcParse::IfcFile& f, bool no_progress, bool quiet, bool stderr_progress) {
	{
		auto delete_reversed = [&f](const aggregate_of_instance::ptr& insts) {
			if (!insts) {
				return;
			}
			// Lists are traversed back to front as the list may be mutated when
			// instances are removed from the grouping by type.
			for (auto it = insts->end() - 1; it >= insts->begin(); --it) {
				IfcUtil::IfcBaseClass* const inst = *it;
				f.removeEntity(inst);
			}
		};

		// Delete quantities
		auto quantities = f.instances_by_type("IfcPhysicalQuantity");
		if (quantities) {
			quantities = quantities->filtered({ f.schema()->declaration_by_name("IfcPhysicalComplexQuantity") });
			delete_reversed(quantities);
		}

		// Delete complexes
		delete_reversed(f.instances_by_type("IfcPhysicalComplexQuantity"));

		auto element_quantities = f.instances_by_type("IfcElementQuantity");

		// Capture relationship nodes
		std::vector<IfcUtil::IfcBaseClass*> relationships;
		auto IfcRelDefinesByProperties = f.schema()->declaration_by_name("IfcRelDefinesByProperties");
		if (element_quantities) {
			for (auto& eq : *element_quantities) {
				auto rels = eq->file_->getInverse(eq->id(), IfcRelDefinesByProperties, -1);
				for (auto& rel : *rels) {
					relationships.push_back(rel);
				}
			}

			// Delete element quantities
			delete_reversed(element_quantities);
		}


		// Delete relationship nodes
		for (auto& rel : relationships) {
			f.removeEntity(rel);
		}
	}

	ifcopenshell::geometry::Settings settings;
	settings.get<ifcopenshell::geometry::settings::UseWorldCoords>().value = false;
	settings.get<ifcopenshell::geometry::settings::WeldVertices>().value = false;
	settings.get<ifcopenshell::geometry::settings::ReorientShells>().value = true;
	settings.get<ifcopenshell::geometry::settings::ConvertBackUnits>().value = true;
	settings.get<ifcopenshell::geometry::settings::IteratorOutput>().value = ifcopenshell::geometry::settings::NATIVE;

	IfcGeom::Iterator context_iterator(ifcopenshell::geometry::kernels::construct(&f, "opencascade", settings), settings, &f, {}, 1);

	if (!context_iterator.initialize()) {