GUID and Author Data

Building model objects have a unique identifier GUID, which remains the same for the duration of the object's existence. Every time a building model is saved, the program ensures that all objects have an identifier. The identifier is also verified when the building model is exported to an IFC file. The so-called compressed IFC GUID is exported to the IFC file. Based on this ID, you can search for an object when you open the IFC file with a viewer.

Saving a model to an IFC file requires the IFC Converter add-on option.

You can check the identifier of an individual object as follows:

  1. Select an object in the model or in the floor plan.
  2. Right-click to open the context-sensitive menu.
  3. Select GUID and Author. The dialog box shows the following information:
    • GUID - Unique identifier of the object
    • IFC GUID - The compressed identifier to be exported to the IFC file
    • Creator - User and date
    • Modifier - User and date
Note:
  • If you start a new building based on an old building, the identifiers of the objects will be reset and recreated in the new building. This way, the identifiers remain unique.
  • The identifier is generated for most object types. If the function GUID and Author is not available, the object does not have an identifier.