ifcopenshell.util.schema

Module Contents

class ifcopenshell.util.schema.BatchReassignClass(file: ifcopenshell.file)

purge() → None

reassign(element: ifcopenshell.entity_instance, new_class: str) → ifcopenshell.entity_instance

unbatch()

class ifcopenshell.util.schema.Migrator

find_equivalent_attribute(new_element, attribute, element, attributes_mapping, reverse_mapping=False)

generate_default_value(attribute, new_file)

migrate(element: ifcopenshell.entity_instance, new_file: ifcopenshell.file) → ifcopenshell.entity_instance

migrate_attribute(attribute, element, new_file: ifcopenshell.file, new_element, new_element_schema)

migrate_attributes(element, new_file, new_element, new_element_schema)

migrate_class(element, new_file)

ifcopenshell.util.schema.get_fallback_schema(version: str) → str

fallback to the schema version we do have docs and mapping for, needed to support IFC versions like 4X3_RC1, 4X1 etc

ifcopenshell.util.schema.get_subtypes(entity)

ifcopenshell.util.schema.is_a(entity: ifcopenshell.entity_instance, ifc_class: str) → bool

ifcopenshell.util.schema.reassign_class(ifc_file: ifcopenshell.file, element: ifcopenshell.entity_instance, new_class: str) → ifcopenshell.entity_instance

Attempts to change the class (entity name) of element to new_class by removing element and recreating a similar instance of type new_class with the same id.

In certain cases it may affect the structure of inversely related instances: - Multiple occurrences of reassigned instance within the same aggregate

(such as start and end-point of polyline)

• Occurrences of reassigned instance within an ordered aggregate (such as IfcRelNests)

It’s unlikely that this affects real-world usage of this function.

ifcopenshell.util.schema.cwd