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Merge remote-tracking branch 'origin/v0.8.0' into ifcviewer-wgpu

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Thomas Krijnen
2026-08-10 03:31:02 +02:00
parent 3d15500976 f05dd4aea5
commit b63137e859
36 changed files with 1543 additions and 147 deletions
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src/ifcopenshell-python/test/util/test_unit.py
+25
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@@ -200,6 +200,31 @@ class TestCalculateUnitScale(test.bootstrap.IFC4):
ifcopenshell.api.unit.assign_unit(self.file, units=[angle])
assert subject.calculate_unit_scale(self.file, "PLANEANGLEUNIT") == pi / 180 * 0.001
def test_prefix_is_raised_to_the_length_exponent_for_area_and_volume(self):
# A prefixed square/cubic metre is (prefix-metre) squared/cubed:
# DECI SQUARE_METRE = dm2 = 1e-2 m2, DECI CUBIC_METRE = dm3 (litre) = 1e-3 m3.
# https://github.com/IfcOpenShell/IfcOpenShell/issues/9278
ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
area.Prefix = "DECI"
volume = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="VOLUMEUNIT")
volume.Prefix = "DECI"
ifcopenshell.api.unit.assign_unit(self.file, units=[area, volume])
assert subject.calculate_unit_scale(self.file, "AREAUNIT") == pytest.approx(0.1**2)
assert subject.calculate_unit_scale(self.file, "VOLUMEUNIT") == pytest.approx(0.1**3)
def test_prefix_stays_linear_for_units_that_are_not_a_pure_power_of_length(self):
# For derived and non-length SI units the prefix scales the unit itself:
# KILO PASCAL = 1e3 Pa, KILO GRAM = 1e3 g.
ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
pressure = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="PRESSUREUNIT")
pressure.Prefix = "KILO"
mass = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="MASSUNIT")
mass.Prefix = "KILO"
ifcopenshell.api.unit.assign_unit(self.file, units=[pressure, mass])
assert subject.calculate_unit_scale(self.file, "PRESSUREUNIT") == pytest.approx(1000)
assert subject.calculate_unit_scale(self.file, "MASSUNIT") == pytest.approx(1000)
class TestFormatLength(test.bootstrap.IFC4):
def test_run(self):