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util/unit.py::calculate_unit_scale() Check for valid unit_type

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Thomas Krijnen
2025-08-04 08:53:08 +02:00
parent 1ad2c62a22
commit 037fd22b51
1 changed files with 8 additions and 0 deletions
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src/ifcopenshell-python/ifcopenshell/util/unit.py
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@@ -691,6 +691,14 @@ def calculate_unit_scale(ifc_file: ifcopenshell.file, unit_type: str = "LENGTHUN
:param unit_type: The type of SI unit, defaults to "LENGTHUNIT" :param unit_type: The type of SI unit, defaults to "LENGTHUNIT"
:returns: The scale factor :returns: The scale factor
""" """
if (
unit_type
not in ifcopenshell.ifcopenshell_wrapper.schema_by_name(ifc_file.schema_identifier)
.declaration_by_name("IfcUnitEnum")
.enumeration_items()
):
raise ValueError(f"Unit type {unit_type!r} does not name a valid type")
# Currently we assume that all ifc projects must have IfcProject. # Currently we assume that all ifc projects must have IfcProject.
if not (projects := ifc_file.by_type("IfcProject")) or not (units := projects[0].UnitsInContext): if not (projects := ifc_file.by_type("IfcProject")) or not (units := projects[0].UnitsInContext):
return 1 return 1