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Scale placeangelunit unit type (#4406)

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* scale placeangleunit

* add radian si_conversions

* return conversion value of planeangleunit

* Update unit.py
This commit is contained in:
Geert Hesselink
2024-03-11 08:54:20 +01:00
committed by GitHub
parent ddfaf3308b
commit d209cc9ff4
1 changed files with 5 additions and 3 deletions
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src/ifcopenshell-python/ifcopenshell/util/unit.py
+5 -3
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@@ -566,7 +566,7 @@ def convert(value, from_prefix, from_unit, to_prefix, to_unit):
return value return value
def calculate_unit_scale(ifc_file): def calculate_unit_scale(ifc_file, unit_type='LENGTHUNIT'):
"""Returns a unit scale factor to convert to and from IFC project length units and SI meters """Returns a unit scale factor to convert to and from IFC project length units and SI meters
Example: Example:
@@ -578,6 +578,8 @@ def calculate_unit_scale(ifc_file):
:param ifc_file: The IFC file. :param ifc_file: The IFC file.
:type ifc_file: ifcopenshell.file.file :type ifc_file: ifcopenshell.file.file
:param unit_type: The type of SI unit, defaults to "LENGTHUNIT"
:type unit_type: str
:returns: The scale factor :returns: The scale factor
:rtype: float :rtype: float
""" """
@@ -586,12 +588,12 @@ def calculate_unit_scale(ifc_file):
units = ifc_file.by_type("IfcUnitAssignment")[0] units = ifc_file.by_type("IfcUnitAssignment")[0]
unit_scale = 1 unit_scale = 1
for unit in units.Units: for unit in units.Units:
if not hasattr(unit, "UnitType") or unit.UnitType != "LENGTHUNIT": if not hasattr(unit, "UnitType") or unit.UnitType != unit_type:
continue continue
while unit.is_a("IfcConversionBasedUnit"): while unit.is_a("IfcConversionBasedUnit"):
unit_scale *= unit.ConversionFactor.ValueComponent.wrappedValue unit_scale *= unit.ConversionFactor.ValueComponent.wrappedValue
unit = unit.ConversionFactor.UnitComponent unit = unit.ConversionFactor.UnitComponent
if unit.is_a("IfcSIUnit"): if unit.is_a("IfcSIUnit")':
unit_scale *= get_prefix_multiplier(unit.Prefix) unit_scale *= get_prefix_multiplier(unit.Prefix)
return unit_scale return unit_scale