Function enumerate_string_properties

src/serializers/SvgSerializer.cpp:494–523

	template <typename It>
	void enumerate_string_properties(const IfcUtil::IfcBaseEntity* product, It output_it) {
		auto rels = product->get_inverse("IsDefinedBy");
		for (auto& rel : *rels) {
			if (rel->declaration().is("IfcRelDefinesByProperties")) {
				auto pset = ((IfcUtil::IfcBaseClass*) ((IfcUtil::IfcBaseEntity*) rel)->get("RelatingPropertyDefinition"))->as<IfcUtil::IfcBaseEntity>();
				if (!pset->declaration().is("IfcPropertySet")) {
					continue;
                }
				std::string pset_name;
				if (!pset->get("Name").isNull()) {
					pset_name = (std::string) pset->get("Name");
				}
				aggregate_of_instance::ptr props = pset->get("HasProperties");
				for (auto& prop : *props) {
					if (prop->declaration().is("IfcPropertySingleValue")) {
						std::string name = ((IfcUtil::IfcBaseEntity*) prop)->get("Name");
                        if (((IfcUtil::IfcBaseEntity*) prop)->get("NominalValue").isNull()) {
                            continue;
                        }
						IfcUtil::IfcBaseClass* v = ((IfcUtil::IfcBaseEntity*) prop)->get("NominalValue");
						auto value = v->get_attribute_value(0);
						if (value.type() == IfcUtil::Argument_STRING) {
							std::string v_str = value;
							*output_it++ = string_property{ pset_name, name, v_str };
						}
					}
				}
			}
		}
	}
}

namespace {