mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
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Dion Moult
84 lines
3.4 KiB
Python
84 lines
3.4 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.schema
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class Usecase:
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def __init__(self, file, **settings):
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self.file = file
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self.settings = {
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"product": None,
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"reference": None,
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"classification": None,
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"is_lightweight": True,
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}
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for key, value in settings.items():
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self.settings[key] = value
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def execute(self):
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relating_classification = None
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if hasattr(self.settings["reference"], "ItemReference"):
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identification = self.settings["reference"].ItemReference # IFC2X3
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else:
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identification = self.settings["reference"].Identification
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for reference in self.file.by_type("IfcClassificationReference"):
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if self.file.schema == "IFC2X3":
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if reference.ItemReference == identification:
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relating_classification = reference
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break
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else:
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if reference.Identification == identification:
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relating_classification = reference
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break
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if relating_classification:
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association = self.get_association(relating_classification)
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related_objects = set(association.RelatedObjects)
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related_objects.add(self.settings["product"])
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association.RelatedObjects = list(related_objects)
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return
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migrator = ifcopenshell.util.schema.Migrator()
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if self.settings["is_lightweight"]:
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old_referenced_source = self.settings["reference"].ReferencedSource
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self.settings["reference"].ReferencedSource = None
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relating_classification = migrator.migrate(self.settings["reference"], self.file)
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if self.settings["is_lightweight"]:
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relating_classification.ReferencedSource = self.settings["classification"]
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self.settings["reference"].ReferencedSource = old_referenced_source
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self.file.create_entity(
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"IfcRelAssociatesClassification",
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**{
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"GlobalId": ifcopenshell.guid.new(),
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"RelatedObjects": [self.settings["product"]],
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"RelatingClassification": relating_classification,
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}
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)
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def get_association(self, reference):
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if self.file.schema == "IFC2X3":
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for association in self.file.by_type("IfcRelAssociatesClassification"):
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if association.RelatingClassification == reference:
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return association
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elif reference.ClassificationRefForObjects:
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return reference.ClassificationRefForObjects[0]
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