Create System types, how?

Developers
1

Hello,

i have some issue to create systemtimes… for each class i want a system, but i stuck

import clr

clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Structure import *
from Autodesk.Revit.DB.Mechanical import *
from Autodesk.Revit.DB.Plumbing import *
import System


clr.AddReference('RevitAPIUI')
from Autodesk.Revit.UI import *

clr.AddReference('System')
from System.Collections.Generic import List

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

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument
uidoc=DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument

_sys = System.Enum.GetValues(MEPSystemClassification)

_sysTypes = FilteredElementCollector(doc).OfClass(MEPSystemType)
_class = [x.SystemClassification for x in _sysTypes]
_names = [Element.Name.GetValue(x) for x in _sysTypes]


t = TransactionGroup(doc, "Create SystemTypes")

t1 = Transaction(doc,"SupplyAir")
t1.Start()
systClass = MEPSystemClassification.SupplyAir
nst = Mechanical.MechanicalSystemType.Create(doc, systClass, "SUPPLYAIR")
t1.Commit()

t2 = Transaction(doc,"Sanitary")
t2.Start()
systClass = MEPSystemClassification.Sanitary
nst = Plumbing.PipingSystemType.Create(doc, systClass, "SANITARY")
t2.Commit()

t.Commit()

OUT = "done"

thats the error that i get

  • Warnung:IronPythonEvaluator.EvaluateIronPythonScript fehlgeschlagen.*
    Traceback (most recent call last):
  • File “”, line 42, in *
    AttributeError: ‘Autodesk.Revit.UI.Mechanical’ object has no attribute ‘MechanicalSystemType’

KR

Andreas

2

Your error message states that it’s trying to use the Autodesk.Revit.UI namespace instead of the Autodesk.Revit.DB namespace. This is because you have multiple references using Mechanical. You can either remove the RevitAPIUI reference since you don’t need it or you can import the system namespaces as named references and call them directly.

import Autodesk.Revit.DB.Mechanical as MechanicalDB
MechanicalDB.MechanicalSystemType.Create()

Also, make sure you transaction group has been started.

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