Hi Daniel!
You can do something like this:
import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
if IN[0]:
TransactionManager.Instance.EnsureInTransaction(doc)
unit = doc.GetUnits()
format = FormatOptions(DisplayUnitType.DUT_METERS)
unit.SetFormatOptions(UnitType.UT_Length,format)
doc.SetUnits(unit)
TransactionManager.Instance.TransactionTaskDone()
OUT = "length unit changed to meter"
else:
OUT = "Set IN[0] to true!"
unitToMeter.dyn (1.9 KB)