52 lines
1.8 KiB
Python
52 lines
1.8 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# IfcOpenShell is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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import ifcopenshell
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import ifcopenshell.util.element
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def remove_reference(file: ifcopenshell.file, reference: ifcopenshell.entity_instance) -> None:
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"""Removes a library reference
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Any products which have relationships to this reference will not be
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removed.
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:param reference: The IfcLibraryReference entity you want to remove
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:return: None
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Example:
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.. code:: python
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library = ifcopenshell.api.library.add_library(model, name="Brickschema")
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reference = ifcopenshell.api.library.add_reference(model, library=library)
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# Let's change our mind and remove it.
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ifcopenshell.api.library.remove_reference(model, reference=reference)
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"""
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if file.schema != "IFC2X3":
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rels = reference.LibraryRefForObjects
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else:
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rels = [rel for rel in file.by_type("IfcRelAssociatesLibrary") if rel.RelatingLibrary == reference]
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for rel in rels:
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history = rel.OwnerHistory
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file.remove(rel)
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if history:
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ifcopenshell.util.element.remove_deep2(file, history)
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file.remove(reference)
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