49 lines
1.8 KiB
Python
49 lines
1.8 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
|
|
# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
|
|
#
|
|
# This file is part of IfcOpenShell.
|
|
#
|
|
# IfcOpenShell is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Lesser General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# IfcOpenShell is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
import ifcopenshell
|
|
import ifcopenshell.util.element
|
|
|
|
|
|
def remove_constraint(file: ifcopenshell.file, constraint: ifcopenshell.entity_instance) -> None:
|
|
"""Remove a constraint (typically an objective)
|
|
|
|
Removes a constraint definition and all of its associations to any
|
|
products. Typically this would be an IfcObjective, although technically
|
|
you can associate IfcMetrics ith products too, though the meaning may be
|
|
unclear.
|
|
|
|
:param constraint: The IfcObjective you want to remove.
|
|
:return: None
|
|
|
|
Example:
|
|
|
|
.. code:: python
|
|
|
|
objective = ifcopenshell.api.constraint.add_objective(model)
|
|
ifcopenshell.api.constraint.remove_constraint(model,
|
|
constraint=objective)
|
|
"""
|
|
file.remove(constraint)
|
|
for rel in file.by_type("IfcRelAssociatesConstraint"):
|
|
if not rel.RelatingConstraint:
|
|
history = rel.OwnerHistory
|
|
file.remove(rel)
|
|
if history:
|
|
ifcopenshell.util.element.remove_deep2(file, history)
|