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New utility to get the exponential dimensions of named unit types

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Dion Moult
2021-08-13 16:20:30 +10:00
parent fd163a3d1e
commit 26f800331e
1 changed files with 37 additions and 0 deletions
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src/ifcopenshell-python/ifcopenshell/util/unit.py
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@@ -119,6 +119,39 @@ si_type_names = {
"VOLUMEUNIT": "CUBIC_METRE", "VOLUMEUNIT": "CUBIC_METRE",
} }
# Are you good at physics? Want to help fill these in? :)
named_dimensions = {
# "ABSORBEDDOSEUNIT": (0, 0, 0, 0, 0, 0, 0),
"AMOUNTOFSUBSTANCEUNIT": (0, 0, 0, 0, 0, 1, 0),
"AREAUNIT": (2, 0, 0, 0, 0, 0, 0),
# "DOSEEQUIVALENTUNIT": (0, 0, 0, 0, 0, 0, 0),
# "ELECTRICCAPACITANCEUNIT": (0, 0, 0, 0, 0, 0, 0),
# "ELECTRICCHARGEUNIT": (0, 0, 0, 0, 0, 0, 0),
# "ELECTRICCONDUCTANCEUNIT": (0, 0, 0, 0, 0, 0, 0),
"ELECTRICCURRENTUNIT": (0, 0, 0, 1, 0, 0, 0),
# "ELECTRICRESISTANCEUNIT": (0, 0, 0, 0, 0, 0, 0),
# "ELECTRICVOLTAGEUNIT": (0, 0, 0, 0, 0, 0, 0),
# "ENERGYUNIT": (0, 0, 0, 0, 0, 0, 0),
# "FORCEUNIT": (0, 0, 0, 0, 0, 0, 0),
# "FREQUENCYUNIT": (0, 0, 0, 0, 0, 0, 0),
# "ILLUMINANCEUNIT": (0, 0, 0, 0, 0, 0, 0),
# "INDUCTANCEUNIT": (0, 0, 0, 0, 0, 0, 0),
"LENGTHUNIT": (1, 0, 0, 0, 0, 0, 0),
# "LUMINOUSFLUXUNIT": (0, 0, 0, 0, 0, 0, 0),
"LUMINOUSINTENSITYUNIT": (0, 0, 0, 0, 0, 0, 1),
# "MAGNETICFLUXDENSITYUNIT": (0, 0, 0, 0, 0, 0, 0),
# "MAGNETICFLUXUNIT": (0, 0, 0, 0, 0, 0, 0),
"MASSUNIT": (0, 1, 0, 0, 0, 0, 0),
# "PLANEANGLEUNIT": (0, 0, 0, 0, 0, 0, 0),
# "POWERUNIT": (0, 0, 0, 0, 0, 0, 0),
# "PRESSUREUNIT": (0, 0, 0, 0, 0, 0, 0),
# "RADIOACTIVITYUNIT": (0, 0, 0, 0, 0, 0, 0),
# "SOLIDANGLEUNIT": (0, 0, 0, 0, 0, 0, 0),
"THERMODYNAMICTEMPERATUREUNIT": (0, 0, 0, 0, 1, 0, 0),
"TIMEUNIT": (0, 0, 1, 0, 0, 0, 0),
"VOLUMEUNIT": (3, 0, 0, 0, 0, 0, 0),
}
si_conversions = { si_conversions = {
"inch": 0.0254, "inch": 0.0254,
"foot": 0.3048, "foot": 0.3048,
@@ -209,6 +242,10 @@ def get_si_dimensions(name):
return si_dimensions.get(name, si_dimensions["OTHERWISE"]) return si_dimensions.get(name, si_dimensions["OTHERWISE"])
def get_named_dimensions(name):
return named_dimensions.get(name, (0, 0, 0, 0, 0, 0, 0))
def get_property_unit(prop, ifc_file): def get_property_unit(prop, ifc_file):
unit = getattr(prop, "Unit", None) unit = getattr(prop, "Unit", None)
if unit: if unit: