PR: Implementing SitePlacement - method set_SitePlacement not found

[rayray4105]

Problem Description

Hi,

I am trying to implement the option 'Coordinate Base' in our export tool but I am running into a problem. After adding 'SitePlacement' to the exporter config I get the following error on execution. Am I missing a reference?

'Method not found: 'Void BIM.IFC.Export.UI.IFCExportConfiguration.set_SitePlacement(Revit.IFC.Common.Enums.SiteTransformBasis)'.'

Dim selectedConfig As IFCExportConfiguration = IFCExportConfiguration.CreateDefaultConfiguration()
selectedConfig.SitePlacement = Enums.SiteTransformBasis.Project

Using AddOption does not give an error but does not position the model correctly (so it does not work).
Dim ifcOpt As IFCExportOptions = New IFCExportOptions
ifcOpt.AddOption("SitePlacement", "2")

Using the UI we can set the Coordinate Base and export how it is supposed to be.

regards,
Raymond

Revit Version

2024.0.x

IFC for Revit Addon Version

24.x.x

Windows Version

11 22H2

[PeterTranberg]

Our developers has a similar problem in 2023, 2024 and 2025

[andydandy74]

Should work via a JSON file - see #761

[rayray4105]

we have already tried but as mentioned in the ticket that does not work. The code runs fine but the model is not coordinated correctly (default location is used).

Dim ifcOpt As IFCExportOptions = New IFCExportOptions
Dim selectedConfig As IFCExportConfiguration = IFCExportConfiguration.CreateDefaultConfiguration()
ifcOpt.AddOption("SitePlacement", 2)
selectedConfig.UpdateOptions(ifcOpt, activeViewId)

[rayray4105]

For now we have seemed to be able to resolve this issue by adding Nuget package: Revit_All_Main_Versions_IFC_x64

https://www.nuget.org/packages/Revit_All_Main_Versions_IFC_x64/2024.0.0?_src=template

Make sure you use the correct version.

[parrela]

[REVIT-229874]