JTabbedPane tabs = PluginComponentFactory.createTabs(namedComponents);
topPane.add(tabs);
// Add relative amplitude and phase information if it exists.
if (model.getParameters() != null) {
creator = new RelativeAmplitudeAndPhaseCreator(model
.getParameters());
if (creator.hasHarmonics()) {
topPane.add(Box.createRigidArea(new Dimension(10, 10)));
topPane.add(createRelAmplAndPhasePanel());