setAlertRadius
Updates the alert radius of the specified route waypoint
Return
true on success of false if the given waypointIdx is out of range.
Parameters
waypointIdx
Index of the waypoint for which its alert radius has to be updated.
radius
the new alert radius (in meters).
Updates the alert radius of all route waypoints
Return
true on success, false otherwise.
Parameters
radius
the new alert radius (in meters).