Dynamo Revit IFC export level of detail

Hi,

I’m want to specify the level of detail of the IFC export with in revit. can someone help me out?
using the following Phyton code:

#python nodes in dynamo 0.7
#proposed by Nicklas Verdier Østergaard, nvo@niras.dk
#Based on tools.dwf by Julien Benoit @jbenoit44
#http://aecuandme.wordpress.com/
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
# Import ToDSType(bool) extension method
clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
# Import geometry conversion extension methods
clr.ImportExtensions(Revit.GeometryConversion)
# Import DocumentManager and TransactionManager
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
from System.Collections.Generic import *
# Import RevitAPI
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *

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

#The inputs to this node will be stored as a list in the IN variable.
#dataEnteringNode = IN

folder=UnwrapElement(IN[0])
name=UnwrapElement(IN[1])
fileversion = IN[2]
wallandcolumnsplitting = IN[3]
exportbasequantities = IN[4]
view = UnwrapElement(IN[5])

#IFCVersion=UnwrapElement(IN[2])

# Start Transaction
TransactionManager.Instance.EnsureInTransaction(doc)
total_export = []

for i,v in enumerate(view):
options=IFCExportOptions()

#if fileversion != None:
# options.FileVersion = fileversion
if fileversion == "IFC4":
options.FileVersion = IFCVersion.IFC4
if fileversion == "IFC2x2":
options.FileVersion = IFCVersion.IFC2x2
if fileversion == "IFC2x3":
options.FileVersion = IFCVersion.IFC2x3
if fileversion == "IFC2x3":
options.FileVersion = IFCVersion.IFC2x3CV2
if fileversion == "IFCBCA":
options.FileVersion = IFCVersion.IFCBCA
if fileversion == "IFCCOBIE":
options.FileVersion = IFCVersion.IFCCOBIE
if fileversion == "":
options.FileVersion = IFCVersion.Default

options.WallAndColumnSplitting = wallandcolumnsplitting
options.ExportBaseQuantities = exportbasequantities
options.FilterViewId = v.Id
options.AddOption("UseActiveViewGeometry", "true");
options.AddOption("TessellationLevelOfDetail", "1");

#IFCVersion Version = (IFCVersion) Enum.Parse( typeof(IFCVersion), UnwrapElement(IN[2]), true );
#x.FileVersion = IFCVersion.IFC2x3CV2

c=doc.Export(folder, name[i], options)
total_export.append(c)

# End Transaction
TransactionManager.Instance.TransactionTaskDone()

if fileversion == "":
OUT="Default settings used"
else:
OUT=total_export

As you can see I tried adding the “TessellationLevelOfDetail”, but that doesnt seem to work as my file size isnt getting anything less.

Thanks in advance!

Greetings, Guido

its working now. post can be removed.

Thanks

Hi @g.honders,

Maybe you tell how you solved it and share the code that is working, so others can also benefit from it.

Kind regards,
Mark

1 Like

adding the following code to the phyton script (as above):

options.AddOption(“TessellationLevelOfDetail”, “1”);

filling in a value from 0 to 4. with 0 being extra low.

Cheers!

1 Like

I have just released an update which includes IFC export…