code: public void updatePoi(final String BLIP_NAME, final Point2D LOCATION) {
          if (pois.keySet().contains(BLIP_NAME)) {
              pois.get(BLIP_NAME).setLocation(LOCATION);
              checkForBlips();
          }
      }
docs: Updates the position of the given poi by it's name (BLIP_NAME) on
  the radar screen. This could be useful to visualize moving points.
  Keep in mind that only the poi's are visible as blips that are
  in the range of the radar.
  @param BLIP_NAME
  @param LOCATION