Units conversion Revit 2022

[krzysztof.nowakFWCRN]

Hi,
I have a problem with the conversion of units in revit 2022. In revit 18.3 (i know its old - im new in dynamo :/ ) im using expression like this:
"

import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import DisplayUnitType, UnitUtils

# output unit
dut = DisplayUnitType.DUT_CENTIMETERS

OUT = UnitUtils.ConvertToInternalUnits(IN[0], dut)

";

but in revit 2022 there is some warnings:

“Ostrzeżenie:IronPythonEvaluator.EvaluateIronPythonScript operacja nie powiodła się.
Traceback (most recent call last):
File “”, line 4, in
ImportError: Cannot import name DisplayUnitType”

I have to convert units to centimeters to get surrounding elements for doors (like concrete beams), tolerance is 5 cm.

I know “DisplayUnitType Property Resource Not Available for the Active API Year” (2022), but maybe someone had the same problem and find solution.

Have a nice day!

[SeanP]

See if this gets you headed in the right direction.

Getting wrong stairs length/width from Python & Revit API

Here is an example using Revit 2022, but the import should be the same. import clr clr.AddReference('RevitAPI') from Autodesk.Revit.DB import * OUT = UnitUtils.Convert(11.7,UnitTypeId.Feet,UnitTypeId.Millimeters) Keep in mind too that in R2021 the DisplayUnitType was depreciated, and then in R2022 is it replaced by the SpecTypeId, ForgeTypeId and UnitTypeId classes.

[krzysztof.nowakFWCRN]

Thx SeanP, but its not working for me

I tried to rewrite the script but it still gets an error at the end.

Does anyone know conversion node which can work in this case

[SeanP]

Try UnitTypeId.Milimeters in place of DusplayUnit.METRIC.

[krzysztof.nowakFWCRN]

Nope

[krzysztof.nowakFWCRN]

I tried too:

[SeanP]

Here is the API reference.

https://www.revitapidocs.com/2022/b5e8d065-d274-62f8-7b5d-89722f7c44f3.htm

It would help if I could spell.

Millimeters with 2 “LL”…

Or Meter or CM

[SeanP]

Try this.

"
import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *

utid = UnitTypeId.MetersCentimeters

OUT = UnitUtils.ConvertToInternalUnits(IN[0],utid)
";

[MartinSpence]

Haha, was just messing around with this, and the ForgeTypeId. Got way more complex then the actual answer

That being said though, I think the OP needs the ConvertFrom

import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import UnitUtils, UnitTypeId

wallType = UnwrapElement(IN[0])

widthInternal = wallType.Width

#output unit
uid = UnitTypeId.Millimeters

OUT = UnitUtils.ConvertFromInternalUnits(widthInternal, uid)

Image for context

[krzysztof.nowakFWCRN]

Hi, thank You for help!

Script works well with code like that:

I have to learn a lot