Skip to main content
Question

How to REMOVE Geometry from IFC file. (only keep Attributes without loosing ANY)?

  • June 18, 2026
  • 8 replies
  • 64 views

vimva679
Enthusiast
Forum|alt.badge.img+11

I have very big IFC file in GB, what i  would like to do is just keep Attributes and export it as IFC file without loosing any order or level etc. 

 

Only remove Geometry , below is what i am doing but not getting it right . Any support would be highly appreciated. 

 

 

8 replies

vimva679
Enthusiast
Forum|alt.badge.img+11
  • Author
  • Enthusiast
  • June 18, 2026

Here is FME workbench 


vimva679
Enthusiast
Forum|alt.badge.img+11
  • Author
  • Enthusiast
  • June 23, 2026

I tried using Geometry remover but still getting those extra properties from original 

 

My purpose is just to remove geometry and let all other things as its things remain same. I don’t wish to alter any properties.

 

If this work i would like to process IFC in bulk removing ONLY geometry . Highly appreciate with any help.

 


vimva679
Enthusiast
Forum|alt.badge.img+11
  • Author
  • Enthusiast
  • June 23, 2026

The other issue when removing geometry is MISSING Data as well :( .Can’t understand why FME cannot do simple jobs also or i may be my workflow is not right .

 

 


vimva679
Enthusiast
Forum|alt.badge.img+11
  • Author
  • Enthusiast
  • June 26, 2026

I have managed to remove Geometry and able to extract ONLY attribute, for some reason am missing …….IfcGrid (Element)

 

 

I might be missing out some transformer or flow . Its FME 2026.1 , any guess how to get IfcGrid ?

 


vimva679
Enthusiast
Forum|alt.badge.img+11
  • Author
  • Enthusiast
  • June 26, 2026

@danilo_fme , ​@redgeographics , ​@david_r , any support please . 


david_r
Celebrity
  • June 29, 2026

I’m not an IFC expert at all, but they are basically just text files. Perhaps there is a way to use regular expressions or similar to text file mechanisms to remove the geometries?


daveatsafe
Safer
Forum|alt.badge.img+23
  • Safer
  • June 29, 2026

Hi ​@vimva679,

When using the original IFC reader/writer, the Property Sets are stored as part of the geometry, so removing the geometry will remove them as well.

Instead, please use a GeometryPartExtractor to remove the Body and Axis geometry representations from the feature geometries. This will preserve the Property Sets when writing.

Please see the attached updated workspace to illustrate.


vimva679
Enthusiast
Forum|alt.badge.img+11
  • Author
  • Enthusiast
  • July 5, 2026

@daveatsafe 

 

Thank Dave, i have run the Workbench and its still missing IfcGrid properties :( and within the properties its missing sub-properties as below