topic Re: Asign Revit Categories to IFC Class Name in Revit MEP Forum

Asign Revit Categories to IFC Class Name

QuangNguyen-ICE — Fri, 16 Nov 2018 01:47:05 GMT

Dear Team,

Please help me,
In the original setting export IFC of Revit, there are multi Revit Categories asign to wrong IFC Class Name, so please help me how to determine right IFC Class Name for all Revit Categories.
And how to find out all revit categories for all IFC Class from link below

https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/Revit-DocumentPresent/files/GUID-EE6C0CF8-7671-4DCC-B0C7-EEA7513C90A9-htm.html

Example: which revit elements will be assigned for IfcActuatorType

Thanks

Re: Asign Revit Categories to IFC Class Name

L.Maas — Fri, 16 Nov 2018 10:31:04 GMT

In Revit you will map categories of families to IFC classes.

There are two methods:

1-In the IFC options set the desired IFC class to the corresponding Revit (sub)-Category.

2-Add a IFCExportAs parameter to the family to override the IFC options.

Second method allows you to set different classes to each element.

Re: Asign Revit Categories to IFC Class Name

QuangNguyen-ICE — Fri, 16 Nov 2018 10:47:12 GMT

Thanks @L.Maas
However I don't know which IFC class name will be assigned to which revit categories.

Exemple: Revit Mechanical Equipment will be assigned to what IFC Class Name, I can't find out the name same with this Revit Category Name, and many more revit categories like: Grid, Plumbing Fixture,....
Please advise and give me an example in this case.

Thanks

Re: Asign Revit Categories to IFC Class Name

L.Maas — Fri, 16 Nov 2018 11:44:34 GMT

Have you looked at the IFC Options in Revit (File->Export->Options->IFC Options)?

There is were you find how a Revit category is mapped to an IFC class

If you want a category to be mapped to a different class then you can fill that in in this window.

Re: Asign Revit Categories to IFC Class Name

QuangNguyen-ICE — Mon, 19 Nov 2018 04:20:12 GMT

Thanks @L.Maas
Please spend your time to have look on my video for more detail about my issue

Hope it useful and enough information about my issue that I met.

Thanks

Re: Asign Revit Categories to IFC Class Name

L.Maas — Mon, 19 Nov 2018 12:15:03 GMT

Ok, I see you are reimporting the IFC file back into Revit.

Then have also a look at the import IFC options.

Like with the IFC export option, here you can map IFC classes to Revit categories.

As an example; you can see that in this case IfcSpaceHeater is imported as Mechanical Equipment.

So if I export the Revit files to IFC where I map mechanical equipment to IfcSpaceHeater and then import the IFC back into Revit it will come back as Mechanical Equipment.

So if you need to export to IFC and then import back to Revit you will have to coordinate between the import and export mappings.

Normally you would only export to IFC (not reimport it back into Revit), to be used in different (specialised) IFC software

Also have a look at the (free) IFC 2017 add-in. It improves the usability of IFC export/import.

Re: Asign Revit Categories to IFC Class Name

QuangNguyen-ICE — Tue, 20 Nov 2018 09:38:20 GMT

Thanks @L.Maas