addPolylineMapObject abstract method
@brief Creates and adds a polyline map object to the location view. @return A PolylineMapObject instance @see PolylineMapObject "PolylineMapObject" if successful, null otherwise.
Dart code snippet: @snippet location_window_map_objects_example.dart dart_LocationWindow_addPolylineMapObject
Implementation
PolylineMapObject addPolylineMapObject();