public DensityChart(PopulationData data) { colors = new int[] {0x660000, 0x006600}; dataSet = new XYMultipleSeriesDataset(); XYSeries[] series = new XYSeries[] {new XYSeries("Population")}; renderer = new XYMultipleSeriesRenderer(); XYSeriesRenderer[] renderers = new XYSeriesRenderer[] { new XYSeriesRenderer(), }; for (XYSeriesRenderer r : renderers) { r.setLineWidth(2); r.setColor(0xffff0000); r.setFillBelowLine(true); r.setFillBelowLineColor(0x33ff0000); renderer.addSeriesRenderer(r); } renderer.setBackgroundColor(0xff000000); renderer.setInitialRange(new double[] {1900, 2010, 0, 800000}); renderer.setXAxisMin(1910); renderer.setMarginsColor(0xffffff); renderer.setAxesColor(0x0); renderer.setXLabelsColor(0x0); renderer.setYLabelsColor(0, 0x0); renderer.setShowGridX(true); renderer.setGridColor(0xcccccc); dataSet.addAllSeries(Arrays.asList(series)); LineChart lc = new LineChart(dataSet, renderer) { @Override protected ClickableArea[] clickableAreasForPoints( List<Float> points, List<Double> values, float yAxisValue, int seriesIndex, int startIndex) { ClickableArea[] hotspots = super.clickableAreasForPoints(points, values, yAxisValue, seriesIndex, startIndex); for (ClickableArea area : hotspots) { area.getRect().setY(0); area.getRect().setHeight(10000); } return hotspots; } }; chart = new ChartComponent(lc) { @Override protected void seriesPressed(SeriesSelection sel) { super.seriesPressed(sel); yearPressed((int) sel.getXValue()); } }; this.setLayout(new BorderLayout()); this.addComponent(BorderLayout.CENTER, chart); this.data = data; }