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Georeference an IFC file using Revit - PIX4Dcloud Pro

This article explains how to georeference an IFC file using Autodesk Revit so that it can be correctly aligned with a point cloud or 3D mesh in PIX4Dcloud Pro. To ensure proper alignment, the IFC file must be exported using the same coordinate system as the PIX4Dcloud project before being imported for visualization.

Licenses: This article is only valid for PIX4Dcloud Pro licenses (formerly PIX4Dcloud Advanced).

Roles: Only Owners, Managers, and Editors can import and visualize IFC files in a dataset in PIX4Dcloud.

Open an IFC file in Revit

If the IFC file has already been generated, open it by selecting the appropriate project template from the Revit home view.

To import an IFC file into an existing Revit project:

  1. On the menu bar, click Insert.

  2. In the dialog window, navigate to the IFC file.

  3. Click Open.

After opening or importing the IFC file, the Project Base Point and Survey Point must be defined to georeference the model.

Define Project Base Point and Survey Point

Correct georeferencing of an IFC file in Revit requires defining both the Project Base Point and the Survey Point.

Refer to the following articles for detailed instructions:

Tip: If the initial coordinates need correction after being defined, see:

For best practices on using these reference points together, see Best Practices: Project Base Point and Survey Point.

Once both points are correctly defined, the IFC file is ready to be exported.

Export an IFC file from Revit

To export the IFC file with the correct coordinate system:

  1. On the menu bar, click File > Export > IFC.

  2. In the Export IFC dialog, click Modify setup….

  3. In the General tab, select Survey Point as the Coordinate Base.

  4. Click OK to confirm and export the file.

Export_geoference_IFC_Revit_PIX4Dcloud.jpg

Import and visualize the georeference IFC file on PIX4Dcloud

The exported IFC file can now be imported into a PIX4Dcloud project and visualized in the 3D view, aligned with the point cloud or 3D mesh.

Warning: If an IFC file was previously imported and appears misaligned, it is recommended to replace it with the correctly georeferenced IFC file.