RE: How to set up IFC export to show empty values?

TimLawrence — Wed, 21 Sep 2022 12:24:05 GMT

Hi David,

We made a change to the IFC mapping so that it would export blank properties. This is the relevant part of the mapping file:

/* Process empty properties (without assigned values). Default value is false. */
"ProcessEmptyProperties" : "false",

You would change the "false" to "true" and it will give you blank property values. To use a custom mapping file, you need to be using itwin.bentley.com or from a saved view in order to have the option in the UI that will allow you to select the mapping file.

You can visit this page:

https://communities.bentley.com/products/digital-twin-cloud-services/itwin-services/w/synchronization-wiki/55909/modifying-default-mapping-for-ifc-exports

and the first entry has a link to the history of the schema mapping. Download the latest version, modify it as indicated above and then select this modified file when running the IFC Export.

I hope this helps.

Tim

RE: How to set up IFC export to show empty values?

Jan Šlegr — Wed, 21 Sep 2022 07:02:21 GMT

Hi David,

[quote userid="1078260" url="~/products/digital-twin-cloud-services/itwin-services/f/itwin-services-forum/235904/how-to-set-up-ifc-export-to-show-empty-values"]As currently set, IFC exports only the attributes that are filled in (on the right side). [/quote]

recently I discovered the same issue ;-)

I guess the question should be not "to show", but "to export empty values".

It is not quite clear what do you mean "on the right side". The picture shows iModel / iTwin viewer (so I guess BIS data is displayed), but not what is visible in exported IFC.

With regards,

Jan