Mission route action enumeration definition class

class MissionActionType

Description：Mission Route Action Enumeration Definition.

public enum MissionActionType {
    @Deprecated
    /** fly over */
    FLY_OVER(0),
    /** hover */
    HOVER(1),
//    @Deprecated
//    CIRCLE(2),  //circling
    /** coordinated turn */
    ARC(2),
    /** unknown */
    UNKNOWN(-1);
}

Description：Mission route action enumeration definition class.