PR: IFC exporter v22.6.x vs 22.5.0 Classification

[xpt5]

Problem Description

... When upgrading to a newer ifc exporter version (v22.6.2.0) I noticed that the Classification data output was not the same as an earlier exporter version (v22.5.0.0). A similar discussion already exists #556 but it refers to Revit 2023.1.1 so I created a new thread.

What I am expecting from the exporter is explained by the following picture (both 22.6.0.0 as 22.6.2.0 output the same data)

I tried different IFC viewers such as Solibri and ZOOM and the result is the same. The Revit Assembly Code description is not exported to the Classification tab (in Solibri) nor to Summary tab (ZOOM). Is this the expected behavior? If it is, could you please explain why is that?

The output from the different IFC files:

`FILE_NAME('projectnummer','2023-07-12T10:45:25',(''),(''),'ODA IFC SDK 22.8','22.1.40.58 - Exporter 22.6.2.0 - Alternate UI 22.6.2.0','');

10268=IFCCLASSIFICATIONREFERENCE('https://www.csiresources.org/standards/uniformat','22.21','Uniformat',#93);

FILE_NAME('projectnummer','2023-07-07T15:08:28',(''),(''),'ODA IFC SDK 22.8','22.1.40.58 - Exporter 22.6.0.0 - Alternate UI 22.6.0.0','');

8845=IFCCLASSIFICATIONREFERENCE('https://www.csiresources.org/standards/uniformat','22.21','Uniformat',#93);

FILE_NAME('projectnummer','2023-07-12T09:28:13',(''),(''),'ODA IFC SDK 22.8','22.1.40.58 - Exporter 22.5.0.0 - Alternate UI 22.5.0.0','');

10513=IFCCLASSIFICATIONREFERENCE('https://www.csiresources.org/standards/uniformat','22.21','binnenwanden; constructief, massieve wanden',#9665);`

Thank you in advance.

Revit Version

2022.1.x

IFC for Revit Addon Version

22.6.2

Windows Version

10 22H2

[AngelVelezSosa]

We haven't updated Revit 2022 yet as we are working on fixing some 2023/2024 regressions first.

[t-vasyi]

The fix for the issues reported in this thread will be included in the next IFC Exporter releases. Please, let me know if you still have any classification issues Thanks

[xpt5]

@t-vasyi thank you for the heads up. I still have nevertheless issues with the classification with the last IFC release.

FILE_DESCRIPTION(('ViewDefinition [CoordinationView_V2.0, QuantityTakeOffAddOnView]','RevitIdentifiers [VersionGUID: 5000065c-850f-4517-985b-1d816116d4b3, NumberOfSaves: 1]','CoordinateReference [CoordinateBase: Internal Origin, ProjectSite: Default Site]'),'2;1'); FILE_NAME('Project1.ifczip','2024-03-22T13:27:03',(''),(''),'ODA IFC SDK 22.8','22.1.40.58 - IFC 22.7.0.0 - Default UI',''); FILE_SCHEMA(('IFC2X3'));

Line 178: #170=IFCCLASSIFICATIONREFERENCE('https://www.bimloket.nl/p/715/Tabellen','22.11',$,#168);

[t-vasyi]

Unfortunately, the issue was fix after the 22.7 release