How to use coordinate systems in PIX4Dsurvey


Project coordinate system

The coordinate reference system of the project is automatically defined based on the coordinate system of:

  • PIX4Dmapper or PIX4Dmatic project file.
  • Coordinate system written in the metadata of the imported point cloud.

To change the project's coordinate system [1] after it is created:

  • Click the Pix4D_edit_icon.jpg icon [2] in the bottom bar.
  • In the Define project coordinate reference system [3] dialog set the:
    • Horizontal coordinate reference system,
    • Vertical coordinate reference system,
    • (Optional) Geoid,
    • (Optional) Geoid height.
  • Click Apply [4].


    Click the Pix4D_edit_icon.jpg icon [2] in the bottom bar to change the project coordinate system.

When changing the coordinate system, the originally imported data is not transformed and only the coordinate system definition changes.

Transformation of import files

When the coordinate system of the project is already defined, the new imported files can be transformed at import. This way you can ensure that they overlay correctly with existing data.

The following file formats can be transformed:

  • Point cloud in .las and .laz file formats.
  • Vector files (.dxf, .json, .shp files) with 2D and 3D objects.
Example: When using:
  • A point cloud in geographic coordinate system WGS84 - EPSG:4326.
  • Project in projected coordinate system WGS 84 / UTM zone 32N - EPSG:32632.
The point cloud can be transformed into WGS 84 / UTM zone 32N - EPSG:32632 to align with the rest of data.
Tip: Since PIX4Dmapper does not directly support all vertical coordinate reference systems many project are defined as arbitrary. In those cases, the import dialog in PIX4Dsurvey allows to set the vertical reference system and make sure that the imported files correctly align with other data.
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