Method get_object

src/ifcgeom/Iterator.cpp:594–629

}

const IfcGeom::Element* IfcGeom::Iterator::get_object(int id) {
	ifcopenshell::geometry::taxonomy::matrix4::ptr m4;
	int parent_id = -1;
	std::string instance_type, product_name, product_guid;
	IfcUtil::IfcBaseEntity* ifc_product = 0;

	try {
		ifc_product = ifc_file->instance_by_id(id)->as<IfcUtil::IfcBaseEntity>();
		instance_type = ifc_product->declaration().name();

		if (ifc_product->declaration().is("IfcRoot")) {
			product_guid = (std::string)ifc_product->get("GlobalId");
			product_name = ifc_product->get_value<std::string>("Name", "");
		}

		auto parent_object = converter_->mapping()->get_decomposing_entity(ifc_product);
		if (parent_object) {
			parent_id = parent_object->id();
		}

		// fails in case of IfcProject
		auto mapped = converter_->mapping()->map(ifc_product);
		auto casted = mapped ? ifcopenshell::geometry::taxonomy::dcast<ifcopenshell::geometry::taxonomy::geom_item>(mapped) : nullptr;

		if (casted) {
			m4 = casted->matrix;
		}
	} catch (const std::exception& e) {
		Logger::Error(e);
	} catch (...) {
		Logger::Error("Unknown error returning product");
	}

	Element* ifc_object = new Element(settings_, id, parent_id, product_name, instance_type, product_guid, "", m4, ifc_product);
	return ifc_object;
}

const IfcUtil::IfcBaseClass* IfcGeom::Iterator::create() {
	const IfcUtil::IfcBaseClass* product = nullptr;