OptionalheadingThe heading (or azimuth), in degrees. Zero is north, 90 is east, and so on.
OptionalpitchThe pitch, in degrees. Represents the angle from the horizontal plane. Positive values look above the horizon, and negative values look below the horizon.
OptionalrollThe roll, in degrees. Represents the rotation around the forward axis. Positives values tilt on the right.
Defines a heading, pitch and roll in degrees.