Hi @k.honda,
For starters, the code below is based on the “Export IFC” node of the Genius Loci package, so all credits go to @Alban_de_Chasteigner
If you enter the IFC export settings manually, you then also have the option to save these settings as a *.json file (as @Marcel_Rijsmus also indicates). If you open the exported json file in a text editor, you will get a good insight into all available export options (this differs per exporter and Revit version).
I took advantage of this by modifying Alban’s Python code. Now I need minimal input options, and all other options are fully customizable in the Python code itself. The code below is for Revit2019. I think you could add the option that Marcel mentions.
import clr
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
# Import RevitAPI
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *
def tolist(obj1):
if hasattr(obj1,"__iter__"): return obj1
else: return [obj1]
doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application
uidoc=DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument
folder = UnwrapElement(IN[0])
view = tolist(UnwrapElement(IN[1]))
name = tolist(UnwrapElement(IN[2]))
Projectorigin = IN[3]
#### Start Transaction ####
TransactionManager.Instance.EnsureInTransaction(doc)
result = []
for i,v in enumerate(view):
#### Define the export options ####
options=IFCExportOptions()
options.FilterViewId = v.Id
options.AddOption("IsBuiltIn", "false")
options.AddOption("IsInSession", "true")
options.AddOption("Name", "<In-Session Setup>") # "Name"
#### "General" Tab ####
options.AddOption("IFCVersion", "21") # "IFC version"
# 9 = IFC 2x2 Coordination View
# 10 = IFC 2x3 Coordination View
# 21 = IFC 2x3 Coordination View 2.0
# 17 = IFC 2x3 GSA Concept Design BIM 2010
# 27 = IFC 2x3 Basic FM Handover View
# 24 = IFC 2x3 COBie 2.4 Design Deliverable View
# 25 = IFC4 Reference View
# 26 = IFC4 Design Transfer View
options.AddOption("ExchangeRequirement", "3") # "Exchange Requirement"
# 0 = Architectural Reference Exchange
# 1 = MEP Reference Exchange
# 2 = Structural Reference Exchange
# 3 = None
options.AddOption("IFCFileType", "0") # "File type"
# 0 = IFC
# 1 = IFC XML
# 2 = Zipped IFC
# 3 = Zipped IFC XML
options.AddOption("ActivePhaseId", "-1") # "Phase to export"
# -1 = Default phase to Export
options.AddOption("SpaceBoundaries", "0") # "Space boundaries"
# 0 = None
# 1 = 1st Level
# 2 = 2nd Level
options.AddOption("SitePlacement", IN[3]) # "Coordinate Base" --IN[4]--
# 0 = Shared Coordinates
# 1 = Survey Point
# 2 = Project Base Point
# 3 = Internal Origin
# Set other export options
options.AddOption("SplitWallsAndColumns", "false") # "Split Walls, Columns, Ducts by Level"
options.AddOption("IncludeSteelElements", "true") # "Include Steel Elements"
#### "Additional Content" Tab ####
options.AddOption("Export2DElements", "false")
options.AddOption("ExportLinkedFiles", "false")
options.AddOption("VisibleElementsOfCurrentView", "true")
options.AddOption("ExportRoomsInView", "false")
#### "Property Sets" Tab ####
options.AddOption("ExportInternalRevitPropertySets", "false")
options.AddOption("ExportIFCCommonPropertySets","true")
options.AddOption("ExportBaseQuantities", "false")
options.AddOption("ExportSchedulesAsPsets", "false")
options.AddOption("ExportSpecificSchedules", "false")
options.AddOption("ExportUserDefinedPsets", "true")
options.AddOption("ExportUserDefinedPsetsFileName", "G:\\data\\User Defined Property Sets.txt")
options.AddOption("ExportUserDefinedParameterMapping", "true")
options.AddOption("ExportUserDefinedParameterMappingFileName", "G:\\data\\Parameter Mapping Table.txt")
#### "Level of Detail" Tab ####
options.AddOption("TessellationLevelOfDetail", "0,5")
#### "Advanced" Tab ####
options.AddOption("ExportPartsAsBuildingElements", "false")
options.AddOption("ExportSolidModelRep", "true")
options.AddOption("UseActiveViewGeometry", "true")
options.AddOption("UseFamilyAndTypeNameForReference", "false")
options.AddOption("Use2DRoomBoundaryForVolume", "false")
options.AddOption("IncludeSiteElevation","false")
options.AddOption("StoreIFCGUID", "true")
options.AddOption("ExportBoundingBox", "false")
options.AddOption("UseOnlyTriangulation", "false")
options.AddOption("UseTypeNameOnlyForIfcType", "false")
options.AddOption("UseVisibleRevitNameAsEntityName", "false")
#options.AddOption("ExportAnnotations ","true")
c=doc.Export(folder, name[i], options)
result.append(c)
#### End Transaction ####
TransactionManager.Instance.TransactionTaskDone()
OUT='Success'
