Event of the direct map rotation. Direct map control events are described in DirectMapControlBeginEvent.
DirectMapRotationEvent( bearingDelta: Bearing, timestamp: Duration, rotationCenter: ScreenPoint? = null )
Changes the angle of the map rotation, in degrees. Positive values correspond to the direction of counter-clockwise rotation.
Time of the system event generation.
Point on the screen around which the map rotates. If no point is specified, the rotation is done relatively to the map position point.