The raw data is in lat/long and elevation. You use a tool like QGIS to project the raw data into xyz data [0]. QGIS and the projection model determine the coord

The raw data is in lat/long and elevation. You use a tool like QGIS to project the raw data into xyz data [0]. QGIS and the projection model determine the coordinates of the data that get rendered. Blender just renders the xyz data. [0] See for example the FAQ for the blender project https://github.com/domlysz/BlenderGIS/wiki/FAQ https://github.com/domlysz/BlenderGIS/wiki/FAQ