What term describes the angle of rotation around the axis of the flight line in aerial photography?

The term that describes the angle of rotation around the axis of the flight line in aerial photography is known as X Tilt. X Tilt refers to the tilt of the camera in the direction of the flight path. It is essential in aerial photography because it affects the scale and perspective of the photographs being taken.

In aerial imagery, understanding and managing the angle of the camera relative to the horizontal plane helps to ensure that the images accurately represent the ground features. When the camera is tilted, it can result in distortion of the photographic data, which can complicate the development of accurate maps or the interpretation of the images.

The other terms provided refer to different concepts. Y Tilt refers to tilting around a different axis, affecting vertical perspective, while the dihedral angle is typically related to geometry in three-dimensional objects rather than photography specifically. Radial Line does not pertain to tilt angles but is more aligned with reference lines used in mapping or surveying.