mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-09 17:31:45 +00:00
Andrej730
72 lines
2.8 KiB
Python
72 lines
2.8 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.api
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class Usecase:
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def __init__(
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self, file: ifcopenshell.file, products: list[ifcopenshell.entity_instance], group: ifcopenshell.entity_instance
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):
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"""Assigns products to a group
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If a product is already assigned to the group, it will not be assigned
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twice.
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:param products: A list of IfcProduct elements to assign to the group
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:type products: list[ifcopenshell.entity_instance.entity_instance]
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:param group: The IfcGroup to assign the products to
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:type group: ifcopenshell.entity_instance.entity_instance
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:return: The IfcRelAssignsToGroup relationship
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:rtype: ifcopenshell.entity_instance.entity_instance
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Example:
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.. code:: python
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group = ifcopenshell.api.run("group.add_group", model, Name="Furniture")
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ifcopenshell.api.run("group.assign_group", model,
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products=model.by_type("IfcFurniture"), group=group)
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"""
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self.file = file
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self.settings = {
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"products": products,
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"group": group,
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}
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def execute(self) -> ifcopenshell.entity_instance:
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if not self.settings["group"].IsGroupedBy:
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return self.file.create_entity(
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"IfcRelAssignsToGroup",
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**{
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"GlobalId": ifcopenshell.guid.new(),
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"OwnerHistory": ifcopenshell.api.run("owner.create_owner_history", self.file),
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"RelatedObjects": self.settings["products"],
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"RelatingGroup": self.settings["group"],
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}
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)
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rel = self.settings["group"].IsGroupedBy[0]
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related_objects = set(rel.RelatedObjects) or set()
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products = set(self.settings["products"])
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if products.issubset(related_objects):
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return rel
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rel.RelatedObjects = list(related_objects | products)
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ifcopenshell.api.run("owner.update_owner_history", self.file, **{"element": rel})
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return rel
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