Room centering location

Hi all,

I know package Modelical has the node called “room and tag location centering”
but i did change the phase name as shown in the image like “XX_EXIST” and “XX_NEW” then the script doesn’t work. it will work when there isn’t “XX_” as prefix infront. Does anyone know where to fix in the python script?

hi @dylanpeng, you can try this;


# dynamo version - 1.3.x, 2,x,x

import clr

import System,Revit
from Autodesk.DesignScript.Geometry import (Geometry,
Point as pt)
from Autodesk.Revit.DB import *
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument

elems = IN[0];

# make list
if not isinstance(elems,list):
	elems = UnwrapElement([elem])
	elems = UnwrapElement(elems)

# output
res = []
# start transaction

# loop elements
for e in elems:
	# level elevation - unit millimeter 
	elevation = e.Level.Elevation * 304.8
	# get geo-objects of the element
	geoelem = e.GetGeometryObjectFromReference(Reference(e))
	# get enumerator to loop geo-objects
	geoobj = geoelem.GetEnumerator()
	# loop geo-objector
	for obj in geoobj:
		# convert to dynamo type
		room_geometry = obj.ToProtoType()
		# get the centroid of the element
		point = room_geometry.Centroid()
		# create location point with level elevation
		center = pt.ByCoordinates(point.X,point.Y,elevation)
		# current element location
		current = e.Location.Point
		# point convert to revit and minus from current location
		newloc = center.ToXyz() - current
		# move to new location

# transaction done

# output
OUT = elems

Hi Jean,

Thank you very much. It works for " XX_ " but when I start to change the prefix say AB_, it dosent work again.


I couldn’t find in your python script which part relate the prefix.

hi @dylanpeng, the underlying issue is room status. You can try this way again.


Hi Jean,

it works! fantastic! Is it possible to do the same thing for area?

Was trying to fix something similar, this is working for me:


seems Python script is not always working, either crash or never stop running, maybe something wrong w/ model like bad room elements.

what package to use in order to get outer boundary of area/room?

edit: never mind, i’ll use MEPover package instead

i love this ! always try to develop out of basic nodes in dynamo even tho it could be a little more complex is my goal. since i am not so good with writing python … yet. Thanks

Can anyone tell me where did it go wrong ? Please help

You are trying to move the Location Point of the Room, that input needs to be the Room elements themselves.

1 Like

OH MY BUDDHA ! It works ! thank you! somehow this afternoon, i tried to connect room elements there it didnt move! :frowning: so happy ! thank you very much for your advice

Can you post the final script? It would be very helpful!
thank you!

Here you go ^^
Move room coordination point to center.dyn (25.5 KB)


Thank you!!!

I have tried with some package and found your script. You are the best.

1 Like

Hi @Bjorn_Keulemans1, which package Areas.OuterBoundary node belongs to? thanks


The selection Node used there is from archi-lab.

I did learn to annotate my custom node usage in the meantime.

Seems the center is not the actual center?!?
What am i missing? @Qnguyen2688
Revit 2020.2

Any idea why? @jean

hi @bvs1982 , frankly speaking, i have no idea. Better consult with ADSK team …