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Dion Moult
59 lines
2.5 KiB
Python
59 lines
2.5 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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class Usecase:
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def __init__(self, file, constituent=None):
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"""Removes a constituent from a constituent set
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Note that it is invalid to have zero items in a set, so you should leave
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at least one constituent to ensure a valid IFC dataset.
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:param constituent: The IfcMaterialConstituent entity you want to remove
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:type constituent: ifcopenshell.entity_instance.entity_instance
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:return: None
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:rtype: None
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Example:
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.. code:: python
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# Create a material set for windows made out of aluminium and glass.
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material_set = ifcopenshell.api.run("material.add_material_set", model,
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name="Window", set_type="IfcMaterialConstituentSet")
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aluminium = ifcopenshell.api.run("material.add_material", model, name="AL01", category="aluminium")
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glass = ifcopenshell.api.run("material.add_material", model, name="GLZ01", category="glass")
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# Now let's use those materials as two constituents in our set.
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framing = ifcopenshell.api.run("material.add_constituent", model,
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constituent_set=material_set, material=aluminium)
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glazing = ifcopenshell.api.run("material.add_constituent", model,
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constituent_set=material_set, material=glass)
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# Let's remove the glass constituent. Note that we should not remove
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# the framing, at this would mean there are no constituents which is
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# invalid.
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ifcopenshell.api.run("material.remove_constituent", model, constituent=glazing)
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"""
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self.file = file
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self.settings = {"constituent": constituent}
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def execute(self):
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self.file.remove(self.settings["constituent"])
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