private void updateChart()
{
final Map<InvestmentVehicle, VehicleBuilder> vehicle2builder = new HashMap<InvestmentVehicle, VehicleBuilder>();
final Map<TaxonomyNode, SeriesBuilder> node2series = new HashMap<TaxonomyNode, SeriesBuilder>();
getModel().visitAll(new NodeVisitor()
{
@Override
public void visit(TaxonomyNode node)
{
if (node.isClassification())