RIE_PowerElements for CPython3

Revit
1

I’m attempting to use the RIE package in Dynamo to take in uncircuited receptacles and create a circuit for them. From what I’ve been able to research, RIE has a built in function called PowerElements, but when I feed my list of receptacles into that function there is no output (or any warnings/errors thrown). The code is below:

import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
from System.Collections.Generic import *

clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.Elements)

clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Electrical import *
from Autodesk.Revit.DB import MEPSystem

clr.AddReference('DSCoreNodes')
import DSCore
from DSCore.List import *

import sys
pyt_path = r'C:\Program Files (x86)\IronPython 2.7\Lib'
sys.path.append(pyt_path)

# Import List ( ICollection(ElementId) = List[ElementId]() )
clr.AddReference("System")
from System.Collections.Generic import List 

#The inputs to this node will be stored as a list in the IN variables.
input = UnwrapElement(IN[0])

electComponents = List[ElementId]()


for i in input:
	electComponents.Add(i.Id)


doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application
uidoc = DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument

TransactionManager.Instance.EnsureInTransaction(doc)

ElectricalSystem.Create(doc, electComponents, ElectricalSystemType.PowerCircuit)

TransactionManager.Instance.TransactionTaskDone()

OUT = []

I believe the issue comes from the lines:

import sys
pyt_path = r'C:\Program Files (x86)\IronPython 2.7\Lib'
sys.path.append(pyt_path)

All the python scripts I’m running in dynamo use CPython3 since IronPython 2.7 doesn’t work. I’m unable to find a directory for CPython3 or how to modify this code segment.

Can someone assist with this? Much appreciated.

2

in your code an empty list is assigned to the variable OUT

try this instead

TransactionManager.Instance.EnsureInTransaction(doc)

elecSystem = ElectricalSystem.Create(doc, electComponents, ElectricalSystemType.PowerCircuit)

TransactionManager.Instance.TransactionTaskDone()

OUT = elecSystem

you can delete lines if you use CPython3 engine

3

Thanks for pointing these out!

I updated the code segments as described but the code block is still giving null as an output (I also commented out the pyt_path lines)

as reference the code now looks like:

import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
from System.Collections.Generic import *

clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.Elements)

clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Electrical import *
from Autodesk.Revit.DB import MEPSystem

clr.AddReference('DSCoreNodes')
import DSCore
from DSCore.List import *

import sys
#pyt_path = r'C:\Program Files (x86)\IronPython 2.7\Lib'
#sys.path.append(pyt_path)

# Import List ( ICollection(ElementId) = List[ElementId]() )
clr.AddReference("System")
from System.Collections.Generic import List 

#The inputs to this node will be stored as a list in the IN variables.
input = UnwrapElement(IN[0])

electComponents = List[ElementId]()


for i in input:
	electComponents.Add(i.Id)


doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application
uidoc = DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument

TransactionManager.Instance.EnsureInTransaction(doc)

elecSystem = ElectricalSystem.Create(doc, electComponents, ElectricalSystemType.PowerCircuit)

TransactionManager.Instance.TransactionTaskDone()

OUT = elecSystem

any other ideas on how to get an output? Thanks so much again!

4
  • Is your equipment already connected to a circuit?
  • Are the electrical parameters of the equipment correct?

you can also try to create a circuit from the electrical connectors