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Export Areas to IFC with Section Box from 3D view

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Anonymous
4819 Aufrufe, 5 Antworten

Export Areas to IFC with Section Box from 3D view

Hello all! 

 

In the project I'm currently working on I want to export an IFC model from a part of the model. For this I use a 3D view with a filter based on a parameter value and a section box to crop the view. In the model there are a couple of areas I also would like to export to IFC. We are running in a problem: when I use a section box no Area are exported. But when I uncheck the section box all the Areas are exported beside the fact that half of them should be filter away. My conclusion: with or without a filter but with a section box no Areas are exported to IFC.  

 

Any thought on this matter? Why are the Areas not exported when I use a section box (same for scope box on/off)?

 

Already tested: IFC exporter plug-in latest version, check/uncheck IFC setting "export rooms in 3d views", Revit 2019 & 2020, Exporting from plan view, area plan view. With and without a filter. 

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Nachricht 2 von 6
JF.K
als Antwort auf: Anonymous

Hi @Anonymous ,

 

We are having the same issues when trying to export "selected" Areas through 3D views into IFC (scopebox/sectionbox method). In our case we use the area floor plan view, change the VT to just show areas and then export a different IFC.

 

This is not ideal specially if you have to do it every level, but it works. We use it as a test for info output in IFC, since normally the whole model is exported.

Nachricht 3 von 6
Anonymous
als Antwort auf: JF.K

Hi @JF.K 

 

Thanks for the reply. We did also look into that solution but as you say it's way more work and for us it's import to have one ifc file. 

 

I hope someone from Autodesk will reply on this subject. 

Nachricht 4 von 6
TripleM-Dev.net
als Antwort auf: Anonymous

Rooms and Area's are a issue with exporting to IFC.

 

Exporting from floorplan (visible items only) -> only rooms/areas intersection cutplan plan will be exported.

Exporting from 3D with export Rooms from 3D -> All or None.

 

Workaround: Use a 3D, add a project instance parameter to the Rooms "IfcExportAs" (would use a different one from the user families)

For all the Rooms/Area's you don't want to export use as value for the "IfcExportAs" = DONTEXPORT

All others leave the value empty

Ifc export will skip these areas/rooms

 

I use a own written app to fill the value automatically based on workset visible state in 3D view.

 

- Michel

Nachricht 5 von 6
Anonymous
als Antwort auf: TripleM-Dev.net

Hi Michel, 

 

Good point. We are use the DontExport function with most projects but not on Rooms/Areas. 

 

A small Dynamo script will do the job to fill in the "DontExport" with a click of a mouse button.

 

It works for me. Not the ideal solution but it's good enough:leicht_lächelndes_Gesicht:.

 

What did I do: Use "DontExport" for all the rooms/areas I don't want to export. Next I hide all the element in a 3D view (regular hide or filter). Export to IFC with "Export only elements visiuble in view" and "Export rooms in 3D views" checked. Note: do not use a scopebox/section box for hiding elements in 3D. It will work for Rooms but you don't export the Areas. 

 

Thanks Michel :daumen_hoch:

Nachricht 6 von 6
bh-khanh
als Antwort auf: Anonymous

Hi everyone

There is a simple way that is export the cropsectionbox to SAT --> import the SAT into AutoCAD Architecture --> Export to IFC.

 

Thank you!

BH Khanh

 

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