Hi,
How can I know what is the object type for an Ifc class instance.
For example :
Is this instance of IfcFlowTerminal is type of IfcOutletType or IfcAirTerminalType?
Thank you
Question
IFC Class and IFC Object Type
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+7Hi @dguilmain,
You should expose the attribute ObjectType. That will give you the name of the IFC class you're looking for.
Be aware though that your reader should be in relational mode (=default) and not hierarchical mode, otherwise you will end up with one or more aggregates (and you will have to extract the class from the geometry traits). More information here.
Hi @sander
ObjectType attribute does not contain the information I want.
I'm using BIM Vision to obtain IfcClass and IfcType about the object 0yctbTyNr3BfE$IEumhzDS.
When I read it with FME I cannot obtain the IfcType (IfcLightFixtureType) but only the name attribute of the IfcType (600x600).
fme-ifc-object-type.png
+7Hi @dguilmain,
Ah.. so you basically want the type behind the ObjectType? I played a bit with your IFC file and I noticed that the IfcLightFixtureType is there, but I can't find a way to have FME read this somehow, also not with a Schema reader. The only way I can think of now, is to manually read the IFC (using a Text Reader) and join that info yourself, but that would be really tedious.
Maybe you should submit a support case for this. Perhaps Safe can tell you if it's possible at all and if it isn't, you could propose an idea for it.