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https://github.com/IfcOpenShell/IfcOpenShell.git
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Andrej730
52 lines
2.0 KiB
Python
52 lines
2.0 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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def remove_cost_item_quantity(
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file: ifcopenshell.file, cost_item: ifcopenshell.entity_instance, physical_quantity: ifcopenshell.entity_instance
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) -> None:
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"""Removes a quantity assigned to a cost item
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If the quantity is part of a product (e.g. wall), then the quantity will
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still exist and merely the relationship to the cost item will be
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removed.
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:param cost_item: The IfcCostItem that the quantity is assigned to
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:param physical_quantity: The IfcPhysicalQuantity to remove
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:return: None
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Example:
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.. code:: python
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schedule = ifcopenshell.api.cost.add_cost_schedule(model)
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item = ifcopenshell.api.cost.add_cost_item(model, cost_schedule=schedule)
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quantity = ifcopenshell.api.cost.add_cost_item_quantity(model,
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cost_item=item, ifc_class="IfcQuantityVolume")
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# Let's change our mind and delete it
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ifcopenshell.api.cost.remove_cost_item(model,
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cost_item=item, physical_quantity=quantity)
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"""
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if file.get_total_inverses(physical_quantity) == 1:
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file.remove(physical_quantity)
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return
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quantities = list(cost_item.CostQuantities or [])
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quantities.remove(physical_quantity)
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cost_item.CostQuantities = quantities
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