/**
* Creates a chart.
*
* @param dataset the data for the chart.
* @return a chart.
*/
private JFreeChart createChart(XYDataset dataset) {
// create the chart...
JFreeChart chart =
ChartFactory.createXYLineChart(
region + ", flows " + flowlist + " " + baselist, // chart
// title
"timestamp",
getYaxis(), // y axis label
dataset, // data
PlotOrientation.VERTICAL,
true, // include legend
true, // tooltips
false // urls
);
if (subtitle != null) {
final TextTitle s = new TextTitle(subtitle);
s.setFont(new Font("SansSerif", Font.PLAIN, 12));
s.setPosition(RectangleEdge.TOP);
// subtitle.setSpacer(new Spacer(Spacer.RELATIVE, 0.05, 0.05, 0.05, 0.05));
// s.setVerticalAlignment(VerticalAlignment.TOP);
chart.addSubtitle(s);
}
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
// chart.setBackgroundPaint(Color.white);
chart.setBackgroundImageAlpha(1.0f);
// chart.addSubtitle(new TextTitle(file.getName()));
// get a reference to the plot for further customisation...
XYPlot plot = (XYPlot) chart.getPlot();
plot.setBackgroundPaint(Color.black);
plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
plot.setDomainGridlinePaint(Color.gray);
plot.setRangeGridlinePaint(Color.gray);
XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) plot.getRenderer();
renderer.setShapesVisible(false);
renderer.setShapesFilled(false);
// change the auto tick unit selection to integer units only...
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
ValueAxis va = plot.getDomainAxis();
va.setAutoRangeMinimumSize(1000);
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// OPTIONAL CUSTOMISATION COMPLETED.
return chart;
}
