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Implement IDS property facet measure conversions

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This commit is contained in:
Dion Moult
2022-05-11 19:59:10 +10:00
parent 4bf25d5d9c
commit 3122cf21db
2 changed files with 75 additions and 1 deletions
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src/ifcopenshell-python/test/test_ids.py
+35
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@@ -633,6 +633,13 @@ class TestIdsAuthoring(unittest.TestCase):
def test_filtering_using_a_property_facet(self):
ifc = ifcopenshell.file()
ifc.createIfcProject()
# Milli prefix used to check measurement conversions
lengthunit = ifcopenshell.api.run("unit.add_si_unit", ifc, unit_type="LENGTHUNIT", name="METRE", prefix="MILLI")
areaunit = ifcopenshell.api.run("unit.add_si_unit", ifc, unit_type="AREAUNIT", name="SQUARE_METRE", prefix="MILLI")
volumeunit = ifcopenshell.api.run("unit.add_si_unit", ifc, unit_type="VOLUMEUNIT", name="CUBIC_METRE", prefix="MILLI")
timeunit = ifcopenshell.api.run("unit.add_si_unit", ifc, unit_type="TIMEUNIT", name="SECOND")
ifcopenshell.api.run("unit.assign_unit", ifc, units=[lengthunit, areaunit, volumeunit, timeunit])
# A name check by itself only checks that a property is non-null and non empty string
# The logic is that unfortunately most BIM users cannot differentiate between the two.
@@ -719,6 +726,34 @@ class TestIdsAuthoring(unittest.TestCase):
ifcopenshell.api.run("pset.edit_pset", ifc, pset=pset, properties={"Foobar": False})
assert bool(facet(element)) is False
# When measure is not specified, no unit conversion is done and only primitives are checked
restriction = ids.restriction.create(options=[42.12], type="enumeration", base="decimal")
facet = ids.property.create(propertySet="Foo_Bar", name="Foobar", value=restriction)
element = ifcopenshell.api.run("root.create_entity", ifc, ifc_class="IfcWall")
pset = ifcopenshell.api.run("pset.add_pset", ifc, product=element, name="Foo_Bar")
ifcopenshell.api.run("pset.edit_pset", ifc, pset=pset, properties={"Foobar": 42.12})
assert bool(facet(element)) is True
# Measure may be used to specify an IFC data type
restriction = ids.restriction.create(options=[2], type="enumeration", base="decimal")
facet = ids.property.create(propertySet="Foo_Bar", name="Foo", value=restriction, measure="Time")
element = ifcopenshell.api.run("root.create_entity", ifc, ifc_class="IfcWall")
pset = ifcopenshell.api.run("pset.add_pset", ifc, product=element, name="Foo_Bar")
ifcopenshell.api.run("pset.edit_pset", ifc, pset=pset, properties={"Foo": ifc.createIfcMassMeasure(2)})
assert bool(facet(element)) is False
ifcopenshell.api.run("pset.edit_pset", ifc, pset=pset, properties={"Foo": ifc.createIfcTimeMeasure(2)})
assert bool(facet(element)) is True
# Measure also implies that a unit matters, and so a conversion shall take place to SI units
restriction = ids.restriction.create(options=[2], type="enumeration", base="decimal")
facet = ids.property.create(propertySet="Foo_Bar", name="Foo", value=restriction, measure="Length")
element = ifcopenshell.api.run("root.create_entity", ifc, ifc_class="IfcWall")
pset = ifcopenshell.api.run("pset.add_pset", ifc, product=element, name="Foo_Bar")
ifcopenshell.api.run("pset.edit_pset", ifc, pset=pset, properties={"Foo": ifc.createIfcLengthMeasure(2)})
assert bool(facet(element)) is False
ifcopenshell.api.run("pset.edit_pset", ifc, pset=pset, properties={"Foo": ifc.createIfcLengthMeasure(2000)})
assert bool(facet(element)) is True
# Location instance only checks on the instance, even if the instance is a type. Yes, weird, I know.
wall = ifcopenshell.api.run("root.create_entity", ifc, ifc_class="IfcWall")
wall_type = ifcopenshell.api.run("root.create_entity", ifc, ifc_class="IfcWallType")