private JFreeChart buildChart(TimeSeriesCollection dataset, String title, boolean endPoints) {
// Create the chart
JFreeChart chart =
ChartFactory.createTimeSeriesChart(title, "Date", "Price", dataset, true, true, false);
// Display each series in the chart with its point shape in the legend
LegendTitle sl = chart.getLegend();
// sl.setDisplaySeriesShapes(true);
// Setup the appearance of the chart
chart.setBackgroundPaint(Color.white);
XYPlot plot = chart.getXYPlot();
plot.setBackgroundPaint(Color.lightGray);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
plot.setAxisOffset(new RectangleInsets(UnitType.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
plot.setDomainCrosshairVisible(true);
plot.setRangeCrosshairVisible(true);
// Display data points or just the lines?
if (endPoints) {
XYItemRenderer renderer = plot.getRenderer();
if (renderer instanceof StandardXYItemRenderer) {
StandardXYItemRenderer rr = (StandardXYItemRenderer) renderer;
// rr.setPlotShapes(true);
rr.setShapesFilled(true);
rr.setItemLabelsVisible(true);
}
}
// Tell the chart how we would like dates to read
DateAxis axis = (DateAxis) plot.getDomainAxis();
axis.setDateFormatOverride(new SimpleDateFormat("MMM-yyyy"));
return chart;
}
/**
* Creates a sample chart.
*
* @param index the chart index.
* @param dataset the dataset.
* @return A chart.
*/
private JFreeChart createChart(int index, XYDataset dataset) {
// create the chart...
JFreeChart chart =
ChartFactory.createXYLineChart(
"Chart " + (index + 1), // chart title
"X", // x axis label
"Y", // y axis label
dataset, // data
PlotOrientation.VERTICAL,
false, // include legend
false, // tooltips
false // urls
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
chart.setBackgroundPaint(Color.white);
// get a reference to the plot for further customisation...
XYPlot plot = chart.getXYPlot();
plot.setBackgroundPaint(Color.lightGray);
// plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
StandardXYItemRenderer renderer = (StandardXYItemRenderer) plot.getRenderer();
renderer.setPlotShapes(true);
renderer.setShapesFilled(true);
// change the auto tick unit selection to integer units only...
ValueAxis domainAxis = plot.getDomainAxis();
domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
ValueAxis rangeAxis = plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// OPTIONAL CUSTOMISATION COMPLETED.
return chart;
}
/**
* Sets the 'shapes filled' for ALL series.
*
* @param filled the flag.
*/
public void setShapesFilled(boolean filled) {
// here we use BooleanUtilities to remain compatible with JDKs < 1.4
setShapesFilled(BooleanUtilities.valueOf(filled));
}
