@Override
  public void elemChosen(NodeDescriptor element) {
    CustomVisualizationViewer visualisator = handler.getVisualizator();
    visualisator.jumpToPlace(visualisator.getGraphLayout().transform(element));

    for (NodeDescriptor node : graph.getVertices()) {
      node.setNodeColour(NodeColours.NOT_RESULT_COLOUR);
    }
    element.setNodeColour(NodeColours.RESULT_COLOUR);
  }
 /**
  * This method is called to set the {@link SatelliteView}, this is needed to be able to run
  * modifying actions.
  *
  * @param sat : The satellite viewer (<b>this should be unique in every workspace</b>)
  */
 public void setSatellite(SatelliteView sat) {
   satView = sat;
   if (satView != null && handler != null) {
     satView.add(handler.getSatelliteViewer());
   }
 }