import PhotoScan

doc = PhotoScan.app.document
chunk = doc.chunk

for camera in chunk.cameras:
	if "DJI/RelativeAltitude" in camera.photo.meta.keys() and camera.reference.location:
		z = float(camera.photo.meta["DJI/RelativeAltitude"])
		camera.reference.location = (camera.reference.location.x, camera.reference.location.y, z)
		
print("Script finished")