Axis and Normal Alignment

[smckenzie]

I have a model exported from Revit where I'm unable to align the axis correctly with each object. I normally have to adjust the axis is some way, normally on the Y.

In this case, if I try to align the axis to object it won't be correct or sometimes won't align at all. If I try to align to a polygon normal it still won't align correct, often rotated in some way.

If I delete a polygon, recreate it and then use the axis center again it mostly works.

Is this somehow a Normal issue?

https://www.icloud.com/iclouddrive/034yVtjhuU6fLamzqrJvBjtIA#normals

[Dr. Sassi]

Hi smckenzie,

Depending on the format, you can swap the Z with the Y axis (+ or -) during the Import.
This should work. I have no data on what format you use to write it from Revit.
My best guess would be DXF or FBX
https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Revit-Export-format.html?us_oa=dotcom-us&us_si=f7b8963f-1458-4d27-b47e-a2ede4ed1b6f&us_st=revit%20export%20formats

If you use FBX, you can define the vertical axis during Import. Since I do not know what you have, you could try Z, perhaps.
Here is your file back.
I used the Axis Tool and then moved all axes to its center (Enable Axis Modification [L]).
https://stcineversityprod02.blob.core.windows.net/$web/Cineversity_Forum_Support/2024_PROJECTS_DRS/20240329_CV4_2024_drs_24_IMyz_01.c4d.zip
I have not aligned the rotation of the house, as that might be based on context.

If you have a direct export from Revit, I'm happy to look into it.

All the best