code: private void setCoordinateLineVisibleInMap(final String coordinateLineId) {
          if (null != coordinateLineId) {
              final WeakReference<CoordinateLine> coordinateLineWeakReference = coordinateLines.get(coordinateLineId);
              if (null != coordinateLineWeakReference) {
                  final CoordinateLine coordinateLine = coordinateLineWeakReference.get();
                  if (null != coordinateLine) {
                      if (coordinateLine.getVisible()) {
                          jsMapView.call("showCoordinateLine", coordinateLineId);
                      } else {
                          jsMapView.call("hideCoordinateLine", coordinateLineId);
                      }
                  }
              }
          }
      }
docs: shows or hides the coordinateline in the map according to it's visible property.
  
  @param coordinateLineId
  the id of the CoordinateLine object