Dynamo Revit Python Snippets

dynamo_revit_snip.py

# Universal header
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
clr.AddReference("RevitNodes")
import Revit
from Revit.Elements import *
clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *
# Import DocumentManager
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument
# uiapp = DocumentManager.Instance.CurrentUIApplication
# app = uiapp.Application

# ============================================================
# Get all Walls and put out the WallType for each one
collector = FilteredElementCollector(doc)
elems = collector.WherePasses(ElementClassFilter(Wall)).ToElements()
OUT = []
for elem in elems:
    wt = elem.WallType
    OUT.append(wt)
# ============================================================
# Get Walls from IN[0] and set all their types to the WallType IN[1]
TransactionManager.Instance.EnsureInTransaction(doc)
OUT = []
for elem in IN[0]:
    # wt = elem.InternalElement.WallType
    # OUT.append(wt)
    elem.InternalElement.WallType = IN[1].InternalElement
    OUT.append(elem)    # For debugging or chaining
TransactionManager.Instance.TransactionTaskDone()