Hi all,
I trying to import a model authored in Civil 3D that has meta data attached using the Extended Data function as shown below. When I open or import the source DWG or exported .ifc with embedded data none of this pulls through into AECOsim. Does anyone have a solution for this interoperability problem?
Hi Tathagata, yes the information is coming through into Navisworks and Solibri, you can see in the second image the IFC is loaded into Navisworks with the information populated in separate headers
Try referencing the ifc instead of importing. The extended data should show up.
If they do, try publishing an imodel from there...
FWIW, referencing or opening the IFC file (vs. importing) does not display those properties either.
David, is Construction Data a custom IFC property set? It's obviously making it into Solibri but I'm not sure there's an equivalent on the OBD/MicroStation side of the fence in order to map them over. The only mapped data is the generic IfcBuildingElementProxy.
Hi Steve,
Construction Data is a default IFC property set and not created as a custom item.
Hi David,
I've gone through roughly 20 different IFC files, generated both internally and from other users, but none include the Construction Data property set at any level. Perhaps this is something specific to the Civil 3D application? If so, that could explain why we don't have a corresponding mapping for it from a Building discipline perspective.
Looking outside of IFC, is the data present in DWG format when opening the file in any application other than Civil 3D itself?
The Construction Data appears to be native to Civil 3D.
The data is not present in standard AutoCAD as Property Sets and Extended Data is not included as a feature. The dataset is however embedding it's self into the IFC and on importing it into Revit, Solibri and Navisworks it is retained and visible.
OK, thanks for confirming. I believe that Solibri, being a native IFC application, simply reads everything as-is with no need for mapping of any kind as most other applications do. And since both Revit and Navisworks can see the Construction Data properties I'd assume that Autodesk has made both capable of reading that data since everything exists in their ecosystem. I suppose we're at a disadvantage there...
This is a bit outside my realm, but, do you know whether there's an Object Enabler for Civil 3D? I wonder if that's somehow tied into displaying that data in DWG format, if at all possible.
Ran across this interesting presentation from the nascent RailBaltica project.
Note the important role that .IFC is playing, and how OBD is used to generate IFC, not OpenRail ConceptStation.
Also interesting is the absence of OpenRail Designer and the xml link between Civil3D and ORCS.
And Navisworks being the aggregating app for IFC. I wonder Solibri isn't being used here. Navigator would be even better but it seems to be too busy trying to morph into imodel.Hub. One for the future?
It would be great to sort out the Object Enabler stuff for CIVIL3D and MEP. As mentioned elsewhere, there should be an option on the OBD installer for this. We have never been able to get the OE's to work by just following the installation instructions.