/**
  * Returns the limiting magnitude of the catalog database.
  *
  * @return the limiting magnitude of the catalog database.
  */
 public double getLimitingMagnitude() {
   return desktop.getSettingDialog().getFainterLimitingMagnitude();
 }
 /**
  * Shows the dialog to set parameters.
  *
  * @return 0 if <tt>OK</tt> button is pushed, or 2 if <tt>Cancel</tt> button is pushed.
  */
 public int showSettingDialog() {
   return desktop.getSettingDialog().show(pane);
 }