Wall type function is "Exterior" with python

1

Hi all,

I would like to get only exterior wall with a python script.

I did this (see below):

#Import librairies and Namespaces
import clr
import System
import math
clr.AddReference(‘ProtoGeometry’)
clr.AddReference(‘RevitAPI’)
clr.AddReference(‘RevitAPIUI’)

from Autodesk.DesignScript.Geometry import *

#Document and Transaction
clr.AddReference(“RevitServices”)
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
from Autodesk.Revit.DB import *

import Autodesk
from Autodesk.Revit.DB.LabelUtils import GetLabelFor
from Autodesk.Revit.DB.ParameterFilterRuleFactory import CreateEqualsRule
from Autodesk.Revit.DB.ElementId import *
#Define the inputdata

Walls = UnwrapElement(IN[0])

#Creating a variable doc which set the active Revit application and document

doc = DocumentManager.Instance.CurrentDBDocument
TransactionManager.Instance.EnsureInTransaction(doc)
#Start the script

#Avoir les murs ayant une fonction du mur
ext=ElementId(BuiltInParameter.FUNCTION_PARAM)

Parameters=ParameterFilterRuleFactory.CreateEqualsRule(ext,(WallFunction.Exterior))

#End the script
TransactionManager.Instance.TransactionTaskDone()

OUT=Parameters

It doesn’t work , Dynamo said that : no module named ElementId

Thank you for your help :slight_smile: