Revitapi auto convert the length

Revit
1

my code below:

test= 1
runs[2].LookupParameter('Extend Below Riser Base').Set(test)

Result:
image

How to avoid revitapi to auto convert the length?

2

@newshunhk I guess by dividing the input by 304.8 :slight_smile:

3

my current unit is sometimes millimeter or meter depends on project, dividing 304.8 is not always correct.

4

You can look up the project units for a specific unit type, Length in the code below, and use that to determine the conversion needed.

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

unitType = UnitType.UT_Length
currentDisplayUnits = doc.GetUnits().GetFormatOptions(unitType).DisplayUnits

OUT = currentDisplayUnits
2 Likes
5

thank you!
and I found that your code is for revit 2021 and previous,
I need a different one if using revit 2022

6

You need SpecTypeId instead of UnitType because of a change in the API between 2021 <->2022:

if int(DocumentManager.Instance.CurrentUIApplication.Application.VersionNumber) < 2021:
				factor = UnitUtils.ConvertToInternalUnits(304.8,doc.GetUnits().GetFormatOptions(UnitType.UT_Length).DisplayUnits)
			else:
				factor = UnitUtils.ConvertToInternalUnits(304.8,doc.GetUnits().GetFormatOptions(SpecTypeId.Length).GetUnitTypeId())

Here another example:

if int(DocumentManager.Instance.CurrentUIApplication.Application.VersionNumber) < 2021:
		unit = famdoc.GetUnits()
		currectformat = doc.GetUnits().GetFormatOptions(UnitType.UT_Length)
		accuracy = currectformat.Accuracy
		unit.SetFormatOptions(UnitType.UT_Length,FormatOptions(currectformat.DisplayUnits,accuracy))
		famdoc.SetUnits(unit)
	else:
		unit = famdoc.GetUnits()
		currectformat = doc.GetUnits().GetFormatOptions(SpecTypeId.Length)
		unit.SetFormatOptions(SpecTypeId.Length,currectformat)
		famdoc.SetUnits(unit)
7 Likes
7

thank you!