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gbXML from Revit to OS

asked 2022-02-24 16:38:50 -0500

MaRe's avatar

updated 2022-02-24 17:24:01 -0500

Hi, everyone. I am importing a gbXML file from Revit to OpenStudio. The model is a simple one with 1 floor, 4 exterior walls, 1 roof and few windows and 1 exterior door. The model has an interior wall which divides it in 2 spaces. In Revit, I converted this model into gbXML using "room/space volumes" and before exporting it I had a look in the "Export gbXML - settings" and I could see all the "analythical surfaces" included the 2 floor surfaces. However, when I imported the model in OS, I had a look in the 3D viewer and I realized that the 2 floor surfaces didn't appear. Then, I set up the parameters to the model in OS, and I run the simulation but it fails. It says that no floor exist and all the value per floor area are zero. I would be grateful if someone could help to bring the gbXML model to OS complete. Thank you.

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Can you share the gbXML file?

Mostapha Roudsari's avatar Mostapha Roudsari  ( 2022-02-24 22:02:30 -0500 )edit

Thank you Mostapha. I tried to upload the gbXML file, through editing my post and using the attachment button, but it only allows png, tiff files and the like. Sorry, but I couldn't find where to share the file. Could you tell me it?

MaRe's avatar MaRe  ( 2022-02-25 06:28:52 -0500 )edit

Can you upload it to Dropbox or Google Drive and share the link here?

Mostapha Roudsari's avatar Mostapha Roudsari  ( 2022-02-25 09:26:00 -0500 )edit

Thank you Mostapha. This is the link for the file:!AiNrTLLdXCsqhNVA0...

MaRe's avatar MaRe  ( 2022-02-25 12:36:13 -0500 )edit

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answered 2022-02-25 21:45:57 -0500

Hi @MaRe, I uploaded the fixed version here. It was missing the floors as you said but it was an easy fix.


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Thank you Mostapha. Please, could you explain how the file was fixed?. I ask this, because in Revit I created the 2 rooms and I lengthen the room's base offset a bit to make sure the floor was included. Also, the "Export gbXML - settings" showed the floor.

MaRe's avatar MaRe  ( 2022-02-25 22:26:17 -0500 )edit

I fixed it using the Pollination Rhino plugin ( Revit's native gbXML export is not really reliable. You might want to use the Pollination plugin ( I can also test the model for you if you can share the Revit file.

Mostapha Roudsari's avatar Mostapha Roudsari  ( 2022-02-26 13:32:17 -0500 )edit

Thank you Mostapha for you answer . I am going to try the Pollination plugin for Revit. I would be grateful if you could have a look in the Revit model. This is the link:!AiNrTLLdXCsqhNVSZ... Thank you.

MaRe's avatar MaRe  ( 2022-02-26 17:11:27 -0500 )edit

Hi @MaRe! I did a quick test and the model is being exported with no issues. See here and here.

Mostapha Roudsari's avatar Mostapha Roudsari  ( 2022-02-26 19:46:58 -0500 )edit

Thank you very much Mostapha. I'll definitely try Pollination plugin.

MaRe's avatar MaRe  ( 2022-02-26 20:49:52 -0500 )edit

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Asked: 2022-02-24 16:38:50 -0500

Seen: 438 times

Last updated: Feb 26 '22