1. A method for determining a location of a target in a real-world coordinate system using a measuring device comprising a camera, the method comprising: at a first location: determining first location coordinates of the measuring device; determining a first gravitational direction; and capturing a first image using the camera; at a second location: determining second location coordinates of the measuring device; and capturing a second image using the camera; determining a plurality of correspondence points between the first image and the second image; determining a first plurality of image coordinates for the plurality of correspondence points in the first image; determining a second plurality of image coordinates for the plurality of correspondence points in the second image; determining the location of the target using at least the first plurality of image coordinates, the second plurality of image coordinates, the first location coordinates, the second location coordinates, and the first gravitational direction.