mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-13 19:07:57 +00:00
Dion Moult
62 lines
2.3 KiB
Python
62 lines
2.3 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
|
|
# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
|
|
#
|
|
# This file is part of IfcOpenShell.
|
|
#
|
|
# IfcOpenShell is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Lesser General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# IfcOpenShell is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
import ifcopenshell
|
|
import ifcopenshell.api
|
|
|
|
|
|
class Usecase:
|
|
def __init__(self, file, product=None, group=None):
|
|
"""Unassigns a product from a group
|
|
|
|
If the product isn't assigned to the group, nothing will happen.
|
|
|
|
:param product: A IfcProduct element to unassign from the group
|
|
:type product: ifcopenshell.entity_instance.entity_instance
|
|
:param group: The IfcGroup to unassign from
|
|
:type group: ifcopenshell.entity_instance.entity_instance
|
|
:return: None
|
|
:rtype: None
|
|
|
|
Example::
|
|
|
|
group = ifcopenshell.api.run("group.add_group", model, Name="Furniture")
|
|
furniture = model.by_type("IfcFurniture")
|
|
ifcopenshell.api.run("group.assign_group", model, products=furniture, group=group)
|
|
|
|
bad_furniture = furniture[0]
|
|
ifcopenshell.api.run("group.unassign_group", model, product=bad_furniture, group=group)
|
|
"""
|
|
self.file = file
|
|
self.settings = {
|
|
"product": product,
|
|
"group": group,
|
|
}
|
|
|
|
def execute(self):
|
|
if not self.settings["group"].IsGroupedBy:
|
|
return
|
|
rel = self.settings["group"].IsGroupedBy[0]
|
|
related_objects = set(rel.RelatedObjects) or set()
|
|
related_objects.remove(self.settings["product"])
|
|
if len(related_objects):
|
|
rel.RelatedObjects = list(related_objects)
|
|
ifcopenshell.api.run("owner.update_owner_history", self.file, **{"element": rel})
|
|
else:
|
|
self.file.remove(rel)
|