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50 lines
1.9 KiB
Python
50 lines
1.9 KiB
Python
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# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2023 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 pathlib
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import pytest
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import ifcopenshell.util.unit
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UNITS_FIXTURE_DIR = pathlib.Path(__file__).parent.parent / "fixtures" / "units"
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@pytest.mark.parametrize("ifc_file", UNITS_FIXTURE_DIR.glob("*.ifc"))
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def test_file_units_length_convert(ifc_file):
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f = ifcopenshell.open(ifc_file)
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project_unit = ifcopenshell.util.unit.get_project_unit(f, "LENGTHUNIT")
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if project_unit.Prefix == "MILLI":
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target_units = "METERS"
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scale = 0.001
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else:
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target_units = "MILLIMETERS"
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scale = 1000
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new_f = ifcopenshell.util.unit.convert_file_length_units(f, target_units)
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for element, attr, val in ifcopenshell.util.unit.iter_element_and_attributes_per_type(new_f, "IfcLengthMeasure"):
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elem_id = element.id()
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original_element = f.by_id(elem_id)
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original_val = getattr(original_element, attr.name())
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if isinstance(original_val, tuple):
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# assert element is equal to original element times scale
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assert val == tuple([v * scale for v in original_val])
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else:
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# assert element is equal to original element times scale
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assert val == original_val * scale
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