1. A method for measuring large components, comprising: (a) providing a large component which has markings on at least one outer surface at a plurality of predefined and spaced-apart locations, which markings have a predefined size and shape and are suitable for being precisely identified with regard to their position on the outer surface of the large component, (b) providing a camera sensor system having at least one camera and one image analysis device that is in data connection with the camera for evaluating a camera image recorded by the camera, wherein the position and orientation of the camera in relation to a reference point at a distance from the camera is determined, (c) recording camera images of the individual markings using the camera and transmitting the camera images to the image analysis device, (d) evaluating the camera images using the image analysis device, wherein the position of the individual markings in relation to the position of the camera is determined, and (e) calculating the position of the markings in relation to the reference point from the position of the camera in relation to the reference point and the position of the markings in relation to the camera.