topic Revit ifc file missing elements in revit version 2024 in Revit API Forum

Revit ifc file missing elements in revit version 2024

gowtham_venkitusamy — Fri, 09 Feb 2024 11:55:39 GMT

In revit 2021 i exported ifc file in reference view it display ifc file with all elements in ifc viewer ,but using same ifc file schema in revit 2024 Few elemetns are not displaying ,iam facing the same error in all models in revit 2024 exported ifc

Re: Revit ifc file missing elements in revit version 2024

jeremy_tammik — Sun, 11 Feb 2024 16:07:28 GMT

Have you implemented your own IFC exporter based on the Revit IFC open source project? If so, you will probably get better answers in the dedicated IFC Revit forum:

https://github.com/Autodesk/revit-ifc

If not, are you just using the standard built-in Revit IFC export and not programming anything yourself? If so, you will probably get better answers to end user queries in the larger generic architectural forum; please note that this discussion forum is dedicated to programming Revit using the Revit API:

https://forums.autodesk.com/t5/revit-api-forum/this-forum-is-for-revit-api-programming-questions-not-for/td-p/5607765

Re: Revit ifc file missing elements in revit version 2024

gowtham_venkitusamy — Mon, 12 Feb 2024 07:03:30 GMT

// Set up IFC export options file schema
IFCExportOptions exportOptions = new IFCExportOptions();
exportOptions.FileVersion = IFCVersion.IFC4RV; //{ IFC4 Reference View IFC4RV = 25,}
exportOptions.AddOption("TessellationLevelOfDetail", "0.25");

bool exportSuccess = doc.Export(tempDirectoryPath, revitFileName, exportOptions);

When exporting an IFC file from Revit using the same schema, I noticed that all elements are displayed in Revit 2021, but some are missing in Revit 2024. This issue occurred across multiple models tested. Does the export of IFC files vary between different versions of Revit? or any other reason ?