/** * 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; }