How to add IFC property

Hi @bruno,

I think you need to disconnect the top stream, which is sending an unchanged copy of your data to the writer as well.

If you would like to share a copy of your source IFC file, I can help adjust the workspace for the best results.

Hi Dave,

Thank for your answer. As proposed, I removed the top stream but nothing changes. I still don’t have the “TypeVitrage” property for each Window. I attached my IFC file …

Thank in advance

Best regards

Bruno

Hi bruno

Writing IFC is very complex. I used the tutorial from FME support site to build my workbenches.

This pages is a collection of some BIM-themed workbenches: https://support.safe.com/hc/en-us/articles/25407429026829-BIM-Tutorial

IHMO this ist the best example for beginners:

https://support.safe.com/hc/en-us/articles/25407715698317-AutoCAD-to-IFC-Conversion-Example

Hi Thomas,

Thank for your links. I was inspired by the last one (AutoCAD to IFC conversion) which I modified to obtain the attached workbench. I managed to add a property “NatureVitrage” into the existing property set “Proprietes” for all the windows. But all other existing properties contained into the property set “Proprietes” have been removed. On other hand, all the existing property set “Proprietes” attached to other objects (wall, doors, etc.) have also been removed, and I also lost the window’s geometry.

Does anyone have an idea ?

Best regards

Bruno