62 lines
2.3 KiB
Python
62 lines
2.3 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2022 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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from typing import Optional
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import ifcopenshell
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import ifcopenshell.api.owner
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import ifcopenshell.guid
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import ifcopenshell.util.element
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def connect_element(
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file: ifcopenshell.file,
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relating_element: ifcopenshell.entity_instance,
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related_element: ifcopenshell.entity_instance,
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description: Optional[str] = None,
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) -> ifcopenshell.entity_instance:
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incompatible_connections = []
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for rel in relating_element.ConnectedFrom:
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if rel.is_a() == "IfcRelConnectsElements" and rel.RelatingElement == related_element:
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incompatible_connections.append(rel)
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for rel in related_element.ConnectedTo:
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if rel.is_a() == "IfcRelConnectsElements" and rel.RelatedElement == relating_element:
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incompatible_connections.append(rel)
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if incompatible_connections:
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for connection in set(incompatible_connections):
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history = connection.OwnerHistory
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file.remove(connection)
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if history:
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ifcopenshell.util.element.remove_deep2(file, history)
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for rel in relating_element.ConnectedTo:
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if rel.is_a() == "IfcRelConnectsElements" and rel.RelatedElement == related_element:
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rel.Description = description
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return rel
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return file.createIfcRelConnectsElements(
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ifcopenshell.guid.new(),
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OwnerHistory=ifcopenshell.api.owner.create_owner_history(file),
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Description=description,
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RelatingElement=relating_element,
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RelatedElement=related_element,
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)
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