HeadingPitchRange
external class HeadingPitchRange(var heading: Double = definedExternally, var pitch: Double = definedExternally, var range: Double = definedExternally)(source)
Defines a heading angle, pitch angle, and range in a local frame. Heading is the rotation from the local east direction where a positive angle is increasing southward. Pitch is the rotation from the local xy-plane. Positive pitch angles are above the plane. Negative pitch angles are below the plane. Range is the distance from the center of the frame.