Notes on IFC attribute mapping

When you export data using Export IFC Data, the program usually assigns and transfers objects and attributes automatically using the following configuration files:
Default_PropertyMap_Allplan_TO_IFC2x3.cfg and
Default_PropertyMap_Allplan_TO_IFC4.cfg.
These configuration files, which must not be changed, are in the ETC\IFC folder of the Allplan installation.

If you must meet specific requirements given by the client or BIM coordinator, you can use your own configuration files. Make sure you structure these files in the same way and save them in the USR\local folder of the Allplan installation. Use the following file names:
User_PropertyMap_Allplan_TO_IFC2x3.cfg and
User_PropertyMap_Allplan_TO_IFC4.cfg.

Allplan 2017 was the first version to support custom configuration files. For future developments, Allplan 2019 comes with a specific header for these configuration files. Therefore, do the following if you want to use configuration files from earlier versions:

Add the following three lines to the beginning of the file and save the file under the same name.

Header for IFC2x3 mapping:

@AttributeMappings
@Direction Allplan->IFC2x3
@Version 2.0

Header for IFC4 mapping:

@AttributeMappings
@Direction Allplan->IFC4
@Version 2.0

Allplan 2019 requires this header information. You cannot use configuration files without this header information.

You can find detailed information in the Allplan BIM Compendium, which you can download from the Allplan Homepage - ‘Learning’ area.