One of our users inadvertently placed a bunch of building elements on a temporary level she no longer needs. The temporary level is at the same elevation as the target level. I have used the following graph:
The Python script is:
import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
clr.ImportExtensions(Revit.GeometryConversion)
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
element = UnwrapElement(IN[0])
ref_level = UnwrapElement(IN[1])
TransactionManager.Instance.EnsureInTransaction(doc)
for i,x in enumerate(element):
ref_levelid = ref_level[i].Id
object_param_level = x.get_Parameter(BuiltInParameter.FAMILY_LEVEL_PARAM)
object_level = doc.GetElement(object_param_level.AsElementId())
object_param_level.Set(ref_levelid)
TransactionManager.Instance.TransactionTaskDone()
OUT = element
The python script is failing at the line that reads, “ref_level = UnwrapElement(IN[1])”. The error message reaferenses: “IndexError: Indev out of range: 1”.
Does anyone out there know how to fix this (with a good explanation of why)?
1 Like
@jorgedelacova7458
Hi,
You need to add another input (plus sign “+”) to the Python node.
Regards,
New to Python. Where should I add the plus sign? And thanks for the quick response!
@jorgedelacova7458
Be sure you are connecting the right data in each input.
1 Like
I have added another input and connected the target level and list of elements to the Python Script node. Now I het an error on line 34. “TypeError: 'Level” is not subscriptable." Doing an Internet search on that now.
i tried also your script!
it finds just system families 
and some stuff can`t read:
import sys
import clr
clr.AddReference("RevitAPI")
from Autodesk.Revit.DB import *
clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
clr.ImportExtensions(Revit.GeometryConversion)
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
element = UnwrapElement(IN[0])
ref_level = UnwrapElement(IN[1])
TransactionManager.Instance.EnsureInTransaction(doc)
for i,x in enumerate(element):
ref_levelid = ref_level[i].Id
object_param_level = x.get_Parameter(BuiltInParameter.FAMILY_LEVEL_PARAM)
object_level = doc.GetElement(object_param_level.AsElementId())
object_param_level.Set(ref_levelid)
TransactionManager.Instance.TransactionTaskDone()
OUT = element
i think it is better start a new topic
