Specify Tilt Angle
Purpose: get and set tilt-angle value.
Mavis uses the camera's tilt angle to compute distances. On startup, it reads this angle from mavis.ini. This interface provides a means of updating mavis if the camera angle changes while it's running.
Executing Through MavisCtl
Currently, this capability can only be accessed from outside MavisCtl.
Mavis initializes the tilt angle to camera#tiltAngle at startup. When mavis exits, it saves the current value for tilt angle in this parameter.