I have an IFC conversion to citygml, in which I created spaces in revit and I converted them using the Citygml Room feature. I want to have the information about the volume of these spaces in the final Citygml Room attribute table after the conversion. the volume information is stored in the BaseQuantities.GroosVolume attribute Of IfcSpace.
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Hi @imanmeliana,
It might be helpful to review the Creating a Textured CityGML Model article. In particular, Section 7 - Create CityGML Attributes should help point you in the right direction! There is also a template workspace with sample data in case you wanted to see a working example first.
The CityGML User Attributes and Writing CityGML from FME documentation pages will also be useful resources for more technical details about CityGML attribute types, etc.
Hope this helps.