mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-10 17:58:20 +00:00
Dion Moult
58 lines
2.0 KiB
Python
58 lines
2.0 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.util.unit
|
|
import ifcopenshell.util.element
|
|
|
|
|
|
class Usecase:
|
|
def __init__(self, file, unit=None):
|
|
"""Remove a unit
|
|
|
|
Be very careful when a unit is removed, as it may mean that previously
|
|
defined quantities in the model completely lose their meaning.
|
|
|
|
:param unit: The unit element to remove
|
|
:type unit: ifcopenshell.entity_instance
|
|
:return: None
|
|
:rtype: None
|
|
|
|
Example:
|
|
|
|
.. code:: python
|
|
|
|
# What?
|
|
unit = ifcopenshell.api.run("unit.add_context_dependent_unit", model, name="HANDFULS")
|
|
|
|
# Yeah maybe not.
|
|
ifcopenshell.api.run("unit.remove_unit", model, unit=unit)
|
|
"""
|
|
self.file = file
|
|
self.settings = {"unit": unit}
|
|
|
|
def execute(self):
|
|
unit_assignment = ifcopenshell.util.unit.get_unit_assignment(self.file)
|
|
if unit_assignment and self.settings["unit"] in unit_assignment.Units:
|
|
units = list(unit_assignment.Units)
|
|
units.remove(self.settings["unit"])
|
|
if units:
|
|
unit_assignment.Units = units
|
|
else:
|
|
self.file.remove(unit_assignment)
|
|
ifcopenshell.util.element.remove_deep(self.file, self.settings["unit"])
|