Esempio n. 1
0
  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));
 }