private static JFreeChart createChart() {
XYDataset xydataset = createDirectionDataset(600);
JFreeChart jfreechart =
ChartFactory.createTimeSeriesChart(
"Time", "Date", "Direction", xydataset, true, true, false);
XYPlot xyplot = (XYPlot) jfreechart.getPlot();
xyplot.getDomainAxis().setLowerMargin(0.0D);
xyplot.getDomainAxis().setUpperMargin(0.0D);
NumberAxis numberaxis = (NumberAxis) xyplot.getRangeAxis();
numberaxis.setAutoRangeIncludesZero(false);
TickUnits tickunits = new TickUnits();
tickunits.add(new NumberTickUnit(180D, new CompassFormat()));
tickunits.add(new NumberTickUnit(90D, new CompassFormat()));
tickunits.add(new NumberTickUnit(45D, new CompassFormat()));
tickunits.add(new NumberTickUnit(22.5D, new CompassFormat()));
numberaxis.setStandardTickUnits(tickunits);
xyplot.setRangeAxis(numberaxis);
XYAreaRenderer xyarearenderer = new XYAreaRenderer();
NumberAxis numberaxis1 = new NumberAxis("Force");
numberaxis1.setRange(0.0D, 12D);
xyarearenderer.setSeriesPaint(0, new Color(0, 0, 255, 128));
xyplot.setDataset(1, createForceDataset(600));
xyplot.setRenderer(1, xyarearenderer);
xyplot.setRangeAxis(1, numberaxis1);
xyplot.mapDatasetToRangeAxis(1, 1);
return jfreechart;
}