Aircraft will fly clockwise.
The entry angle of the circle. True north is 0°. The entry waypoint is displayed as 'S' on the map.
Angle between two adjacent photo points. The default value is 20°, which means total photo number is 360/20=18.
Single Layer：
The height of the last waypoint.
From the first waypoint, the flight height of the aircraft will gradually transition from the min height to the max height.
Multiple Layers：
The height of the last layer。
Single Layer：
The height of the first waypoint.
Multiple Layers：
The height of the first layer.
Aircraft will fly at multiple vertical layers with the same radius.
For example：Sets layers to 3, min height to 50m, max height to 100m. Aircraft will fly circles at the layer of 50m, 75m and 100m,
Manual：Gimbal pitch is controllable in the flight.
Custom：Gimbal pitch will be set to preset value in the flight.
Aircraft will stop at each waypoint and take photo.
Aircraft will fly along the circle at constant speed and take photos at distance.
Towards Hotpoint
The nose of aircraft will always point to the hotpoint.
Away from Hotpoint
The tail of aircraft will always point to the hotpoint.
Along circle looing forward
The nose of aircraft will always point to speed direction.
Along circle looing backward
The tail of aircraft will always point to speed direction.
Shoot in Interval
Aircraft will take photo at intervals in the fast mode.
