41 lines
1.6 KiB
Python
41 lines
1.6 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2025 Thomas Krijnen <thomas@aecgeeks.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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from ifcopenshell import entity_instance
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def get_referent_nest(file: ifcopenshell.file, alignment: entity_instance) -> entity_instance:
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"""
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Searches for the IfcRelNest that contains IfcReferent. If one is not found, a empty IfcRelNests is created.
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:param file:
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:param alignment: The IfcAlignment which hosts IfcReferent
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:return: Returns the IfcRelNests.
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"""
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if not alignment.is_a("IfcAlignment"):
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raise TypeError(f"Expected IfcAlignment, instead received {alignment.is_a()}")
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for nest in alignment.IsNestedBy:
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for related_object in nest.RelatedObjects:
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if related_object.is_a("IfcReferent"):
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return nest
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nest = file.createIfcRelNests(GlobalId=ifcopenshell.guid.new(), RelatingObject=alignment, RelatedObjects=[])
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return nest
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