add approximate azimuth to photos (2)
with a small pair of points, an approximate azimuth and field of view could be available for the photo.
a photo could be be accompanied by pairs of points:
- one point for the coordinates on a photo
- a corresponding point for the coordinates on the earth
With one pair, (and the location the photo was taken from) it'd be possible to get a general azimuth. With two pairs there would be an azimuth and an general field of view.