Get Assembly Sheets

How can I get the sheets that are actually assembly sheets in the project?
image
I was using the below python code, however it gives me a warning.

import clr

clr.AddReference("RevitAPI")
from Autodesk.Revit.DB import *

clr.AddReference("RevitNodes")
from Revit.Elements import *

clr.AddReference("RevitNodes")
import Revit

clr.AddReference("RevitServices") 
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
clr.ImportExtensions(Revit.GeometryConversion)
#Import Element wrapper extension methods
clr.ImportExtensions(Revit.Elements)
#Start Transaction
doc = DocumentManager.Instance.CurrentDBDocument

sheets = UnwrapElement(IN[0])
assem = []

for s in sheets:

	id = s.AssociatedAssemblyInstanceId
	element = doc.GetElement(id)
	assem.append(element)
	
OUT = assem

The warning I am getting in this python script node looks like this.

Warning: IronPythonEvaluator.EvaluateIronPythonScript operation failed. 
Traceback (most recent call last):
  File "<string>", line 6, in <module>
IOError: System.IO.IOException: Could not add reference to assembly RevitNodes
   at IronPython.Runtime.ClrModule.AddReference(CodeContext context, String name)
   at IronPython.Runtime.ClrModule.AddReference(CodeContext context, Object[] references)
   at Microsoft.Scripting.Interpreter.ActionCallInstruction`2.Run(InterpretedFrame frame)
   at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
   at Microsoft.Scripting.Interpreter.LightLambda.Run4[T0,T1,T2,T3,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3)
   at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2)
   at Microsoft.Scripting.Interpreter.DynamicInstruction`4.Run(InterpretedFrame frame)
   at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
   at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1)
   at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx)
   at Microsoft.Scripting.Hosting.ScriptSource.Execute(ScriptScope scope)
   at DSIronPython.IronPythonEvaluator.EvaluateIronPythonScript(String code, IList bindingNames, IList bindingValues)

PS I’m using Dynamo for Revit 2.0.3 for Revit 2019.2

Please suggest if there is any other way.

One thing that I used to grab assembly sheets, is that they have information in the parameter “Assembly: Name” which is determined by the assembly name that it was created for. So, using that logic, you can look up that parameter, and look to see, does it equal a blank value and then filtering that list of sheets to get just those sheets that belong to assemblies (the false values).

Hope this helps!

1 Like

This is very simple and quick. Great help, thank you.

1 Like

You are most welcome!