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https://github.com/IfcOpenShell/IfcOpenShell.git
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Dion Moult
54 lines
2.3 KiB
Python
54 lines
2.3 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.util.unit
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class Usecase:
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def __init__(self, file, **settings):
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self.file = file
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self.settings = {"name": "foot", "conversion_offset": None}
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for key, value in settings.items():
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self.settings[key] = value
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def execute(self):
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unit_type = ifcopenshell.util.unit.imperial_types.get(self.settings["name"], "USERDEFINED")
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dimensions = ifcopenshell.util.unit.named_dimensions[unit_type]
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exponents = self.file.createIfcDimensionalExponents(*dimensions)
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si_name = ifcopenshell.util.unit.si_type_names[unit_type]
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si_unit = self.file.createIfcSIUnit(UnitType=unit_type, Name=si_name)
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conversion_real = ifcopenshell.util.unit.si_conversions.get(self.settings["name"], 1)
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value_component = self.file.create_entity("IfcReal", **{"wrappedValue": conversion_real})
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conversion_factor = self.file.createIfcMeasureWithUnit(value_component, si_unit)
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conversion_offset = self.settings["conversion_offset"]
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if not conversion_offset:
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conversion_offset = ifcopenshell.util.unit.si_offsets.get(self.settings["name"], 0)
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if conversion_offset:
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return self.file.createIfcConversionBasedUnitWithOffset(
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exponents,
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unit_type,
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self.settings["name"],
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conversion_factor,
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conversion_offset,
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)
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return self.file.createIfcConversionBasedUnit(exponents, unit_type, self.settings["name"], conversion_factor)
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