hello Pros,
i need to get the linked elements (such as the lighting fixtures) inside a certain room, the room and lighting fixture are from different linkes (not similar to attached script).
however, “room toelements” node from Genius Loci give “null” when a linked revit instance is added!
am i using it wrong or it does not give what i want or it has an error in its script?
room toelements node not working.dyn (10.0 KB)
Could you show us your complete graph with all the errors and previews expanded.
there you go,
“Warning: IronPythonEvaluator.EvaluateIronPythonScript operation failed.
Traceback (most recent call last):
File “”, line 26, in
NameError: name ‘doc’ is not defined”
Could you copy/paste Python code here or share the screenshot of code.
#Alban de Chasteigner 2021
#twitter : @geniusloci_bim
#geniusloci.bim@gmail.com
#GitHub - albandechasteigner/GeniusLociForDynamo: Genius Loci is a package of 350+ custom nodes for Dynamo in Revit.
import clr
clr.AddReference(‘RevitAPI’)
import Autodesk
from Autodesk.Revit.DB import *
clr.AddReference(“RevitServices”)
import RevitServices
from RevitServices.Persistence import DocumentManager
rooms = UnwrapElement(IN[0]) if isinstance(IN[0],list) else [UnwrapElement(IN[0])]
inputdoc = UnwrapElement(IN[1])
result=
if inputdoc is None:
doc = DocumentManager.Instance.CurrentDBDocument
transform = Transform.Identity
elif isinstance (inputdoc, RevitLinkInstance):
doc = inputdoc.GetLinkDocument()
transform = inputdoc.GetTotalTransform()
for room in rooms:
elem=
fec = FilteredElementCollector(doc).WhereElementIsNotElementType().WhereElementIsViewIndependent().ToElements().FindAll(lambda x : type(x.Location) == LocationPoint and x.Category.Id != ElementId(BuiltInCategory.OST_Rooms) or type(x.Location) == LocationCurve or isinstance(x, CeilingAndFloor) or isinstance(x,RoofBase))
for e in fec:
loc = e.Location
if type(loc) == LocationPoint:
pt=loc.Point
elif type(loc) == LocationCurve:
pt=loc.Curve.Evaluate(0.5, False)
# sketch-based elements (ceiling, floor and roof)
elif isinstance(e, CeilingAndFloor) or isinstance(e,RoofBase) :
for ref in HostObjectUtils.GetTopFaces(e):
geomFace=e.GetGeometryObjectFromReference(ref)
#Get UV BoundingBox
bbox = geomFace.GetBoundingBox()
uv=(bbox.Min+bbox.Max)/2
pt=geomFace.Evaluate(uv)
locationPoint = transform.OfPoint(pt)
if room.IsPointInRoom(locationPoint):
elem.append(e)
result.append(elem)
if isinstance(IN[0], list): OUT = result
else: OUT = result[0]
Are you using the latest version?
yes Sir, I am.
And which build of Revit?
it is the revit 2022.0.2,
however, yesterday i’ve tried it on 2022.1.5 and didn’t work either 
Cnan you try using the genius loci package instead and ensure you have ironpython installed.
Hi @sahawneh_majdi try set your lacing to longest…
Hello @sovitek it actually Worked 
Appreciated
