Answer:
The interface between Dlubal Software and Revit works internally with Global Unique Identifiers (GUIDs). In Revit, a GUID is assigned to each object. During import and export, this GUID is transferred via the interface and added to the corresponding Dlubal Software object (member, surface, and so on). Using GUIDs, you can carry out updates in both directions with only those objects to be updated that are affected by the changes. Other objects remain unaffected. This results in better compatibility during the data exchange.
The comparison assumes that each object in Revit has a corresponding counterpart in the Dlubal Software application. For example, Revit treats each line support individually. If a line support type is assigned to several lines in RFEM, the line support type is automatically duplicated when exporting to Revit in RFEM. A line is assigned to each duplicate. Then, a 1:1 comparison is possible (see image).
Due to the described functioning of the interface with the accompanying change of the Dlubal Software model data, it cannot be ruled out that the results may be deleted. Therefore, we recommend exporting the model to Revit before the calculation. The results can be transferred retroactively within the second export process.
