PiePlot plot = (PiePlot) chart.getPlot();
plot.setSectionOutlinesVisible(false);
plot.setNoDataMessage("No data available");
plot.setSimpleLabels(false);
plot.setCircular(true);
chart.setPadding(new RectangleInsets(0, 0, 0, 0));
chart.removeLegend();
return chart;
}