How to map Revit external ids to Navisworks-based SVF

Question

Is there an efficient to map Revit externalid value to a Forge SVF model that's been exported from Navisworks and therefore has the external id value in the "0/1/0/0" format type.

The built in externalid mapping is handy in Forge but it doesn't look like it can be used in this case, unless there's a way to tell forge what type of mapping is used?

Answer 1

Unfortunately, Navisworks doesn't store Revit Element.UnqueId info in Naviworks model formats (NWC/NWF/NWD), which is the external id for the RvT file in APS viewer.

You might know that Navisworks supports various file formats. However, not all file formats have a GUID concept, according to our engineering team. This is also the reason why the external id of the Naviworks model in SVF uses the instance tree node path (saying e.g. 0/1/0/0")

If you just want to get a mapping between the RVT file and NWC file from the same Revit model, you can use Revit ElementID instead in this case.

• For an element of the Revit model: The ElementID can be found at the end of the object name (in SVF), or in the hidden properties called ElementId.

• For an element of the Navisworks model generated from the same RVT: You can find the ElementID in the properties of Element.Id.