Example usage for org.jfree.chart.renderer.xy XYItemRenderer setSeriesPaint

List of usage examples for org.jfree.chart.renderer.xy XYItemRenderer setSeriesPaint

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Introduction

In this page you can find the example usage for org.jfree.chart.renderer.xy XYItemRenderer setSeriesPaint.

Prototype

public void setSeriesPaint(int series, Paint paint);

Source Link

Document

Sets the paint used for a series and sends a RendererChangeEvent to all registered listeners.

Usage

From source file:no.met.jtimeseries.chart.ChartPlotter.java

/**
 * Add a line chart in the plot//from   ww w .  j a  va 2  s  . co m
 * 
 * @param timeBase
 *            The base time of the data: second, minute, hour, year or auto
 * @param phenomenon
 *            Phenomenon to plot.
 * @param plotStyle
 *            The style preference for the plot
 * 
 */
public void addLineChart(TimeBase timeBase, NumberPhenomenon ph, PlotStyle plotStyle) {
    NumberPhenomenon phenomenon = ph.clone();
    if (phenomenon.getItems().size() > 0) {
        XYItemRenderer renderer = RendererFactory.createRenderer(SplineStyle.STANDARD);
        // if using hybrid spline
        if (plotStyle.getSplineStyle().equalsIgnoreCase(SplineStyle.HYBRID)) {
            phenomenon.doHybridSpline(0.5d, 4);
            renderer = RendererFactory.createRenderer(SplineStyle.NONE);
        }

        if (plotStyle.getNonNegative()) {
            phenomenon.removeNegativeValues();
        }

        XYDataset dataset = phenomenon.getTimeSeries(plotStyle.getTitle(), timeBase);

        renderer.setSeriesPaint(0, plotStyle.getSeriesColor());
        renderer.setSeriesStroke(0, plotStyle.getStroke());

        // hidden the legend by default
        renderer.setSeriesVisibleInLegend(0, false);

        plot.setDataset(plotIndex, dataset);
        plot.setRenderer(plotIndex, renderer);

        // render the range axis
        NumberAxis numberAxis;
        // null check for number axis
        if (plotStyle.getNumberAxis() == null) {
            numberAxis = new NumberAxis(plotStyle.getTitle());
            numberAxis.setAutoRangeIncludesZero(false);
            numberAxis.setLabelPaint(plotStyle.getLabelColor());
            numberAxis.setTickLabelPaint(plotStyle.getLabelColor());

            // ugly calculation
            double max = phenomenon.getMaxValue();
            double min = phenomenon.getMinValue();
            // increase and decrease max, min respectiivly to get the
            // difference pf atleast 50
            while ((max - min) <= plotStyle.getDifference()) {
                max++;
                min--;
            }
            int tUnit = (int) ((max - min) / plotStyle.getTotalTicks());
            if (tUnit <= 1) {
                tUnit = 2;
            }
            int[] range = calculateAxisMaxMin(phenomenon, tUnit, plotStyle.getTotalTicks());

            NumberTickUnit ntu = new NumberTickUnit(tUnit);
            numberAxis.setTickUnit(ntu);
            numberAxis.setRangeWithMargins(range[1], range[0]);
        } else {
            numberAxis = plotStyle.getNumberAxis();
        }
        plot.setRangeAxis(rangeAxisIndex, numberAxis);

        Date minDate = phenomenon.getStartTime();
        Date maxDate = phenomenon.getEndTime();

        DateAxis domainAxis = (DateAxis) plot.getDomainAxis();
        domainAxis.setRange(minDate, maxDate);

        plot.mapDatasetToRangeAxis(plotIndex, rangeAxisIndex);

        plotIndex++;
        rangeAxisIndex++;
    }
}

From source file:charts.Chart.java

public static void ScatterPlot(XYSeriesCollection dataset, String title, String xAxisLabel, String yAxisLabel) {
    NumberAxis xAxis = new NumberAxis(xAxisLabel);
    xAxis.setAutoRangeIncludesZero(false);
    NumberAxis yAxis = new NumberAxis(yAxisLabel);
    yAxis.setAutoRangeIncludesZero(false);
    XYToolTipGenerator toolTipGenerator = new StandardXYToolTipGenerator();
    XYURLGenerator urlGenerator = new StandardXYURLGenerator();
    XYItemRenderer renderer = new XYLineAndShapeRenderer(false, true);//(boolean lines, boolean shapes)
    renderer.setBaseToolTipGenerator(toolTipGenerator);
    renderer.setURLGenerator(urlGenerator);
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    //plot.setDataset(dataset);
    //plot.setDomainAxis(xAxis);
    //plot.setRangeAxis(yAxis);
    //plot.setRenderer(renderer);
    plot.setOrientation(PlotOrientation.VERTICAL);
    plot.setDatasetRenderingOrder(DatasetRenderingOrder.FORWARD);
    plot.setSeriesRenderingOrder(SeriesRenderingOrder.FORWARD);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, true);//true==legend
    //INVERTER AS CORES DOS PONTOS E LEGENDA.
    if (dataset.getSeriesCount() > 1) {
        Shape s0 = plot.getLegendItems().get(0).getShape();
        Shape s1 = plot.getLegendItems().get(1).getShape();
        renderer.setSeriesShape(0, s1);//from w  w  w  .  ja  va  2s .com
        renderer.setSeriesShape(1, s0);
        Paint p0 = plot.getLegendItems().get(0).getLinePaint();
        Paint p1 = plot.getLegendItems().get(1).getLinePaint();
        renderer.setSeriesPaint(0, p1);
        renderer.setSeriesPaint(1, p0);
    }
    //FIM DA INVERSAO.

    JFrame chartwindow = new JFrame(title);
    JPanel jpanel = new ChartPanel(chart);
    jpanel.setPreferredSize(new Dimension(defaultwidth, defaultheight));
    chartwindow.setContentPane(jpanel);
    chartwindow.pack();
    RefineryUtilities.centerFrameOnScreen(chartwindow);
    chartwindow.setVisible(true);
}

From source file:org.sakaiproject.sitestats.impl.ServerWideReportManagerImpl.java

private byte[] createDailyLoginChart(int width, int height) {
    IntervalXYDataset dataset1 = getDailyLoginsDataSet();
    IntervalXYDataset dataset2 = getDailySiteUserDataSet();

    if ((dataset1 == null) || (dataset2 == null)) {
        return generateNoDataChart(width, height);
    }/*from  ww w  .  j  a va2s . com*/

    // create plot ...
    XYItemRenderer renderer1 = new XYLineAndShapeRenderer(true, false);
    renderer1.setSeriesPaint(0, Color.RED);
    renderer1.setSeriesPaint(1, Color.BLUE);
    renderer1.setSeriesPaint(2, Color.RED);
    renderer1.setSeriesPaint(3, Color.BLUE);
    renderer1.setSeriesStroke(0, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer1.setSeriesStroke(1, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    BasicStroke dashLineStroke = new BasicStroke(2, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 0,
            new float[] { 4 }, 0);
    renderer1.setSeriesStroke(2, dashLineStroke);
    renderer1.setSeriesStroke(3, dashLineStroke);

    DateAxis domainAxis = new DateAxis("");
    domainAxis.setTickUnit(new DateTickUnit(DateTickUnit.DAY, 7, new SimpleDateFormat("yyyy-MM-dd")));
    domainAxis.setTickMarkPosition(DateTickMarkPosition.START);
    domainAxis.setVerticalTickLabels(true);
    domainAxis.setLowerMargin(0.01);
    domainAxis.setUpperMargin(0.01);

    NumberAxis rangeAxis = new NumberAxis("count");
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    XYPlot plot1 = new XYPlot(dataset1, null, rangeAxis, renderer1);
    plot1.setBackgroundPaint(Color.lightGray);
    plot1.setDomainGridlinePaint(Color.white);
    plot1.setRangeGridlinePaint(Color.white);

    // add a second dataset and renderer...
    XYItemRenderer renderer2 = new XYLineAndShapeRenderer(true, false);
    renderer2.setSeriesStroke(0, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer2.setSeriesStroke(1, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer2.setSeriesStroke(2, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer2.setSeriesPaint(0, Color.GREEN);
    renderer2.setSeriesPaint(1, Color.BLACK);
    renderer2.setSeriesPaint(2, Color.CYAN);

    rangeAxis = new NumberAxis("count");
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    XYPlot plot2 = new XYPlot(dataset2, null, rangeAxis, renderer2);
    plot2.setBackgroundPaint(Color.lightGray);
    plot2.setDomainGridlinePaint(Color.white);
    plot2.setRangeGridlinePaint(Color.white);

    CombinedDomainXYPlot cplot = new CombinedDomainXYPlot(domainAxis);
    cplot.add(plot1, 3);
    cplot.add(plot2, 2);
    cplot.setGap(8.0);
    cplot.setDomainGridlinePaint(Color.white);
    cplot.setDomainGridlinesVisible(true);

    // return a new chart containing the overlaid plot...
    JFreeChart chart = new JFreeChart(null, JFreeChart.DEFAULT_TITLE_FONT, cplot, false);
    LegendTitle legend = new LegendTitle(cplot);
    chart.addSubtitle(legend);

    // set background
    chart.setBackgroundPaint(parseColor(statsManager.getChartBackgroundColor()));

    // set chart border
    chart.setPadding(new RectangleInsets(10, 5, 5, 5));
    chart.setBorderVisible(true);
    chart.setBorderPaint(parseColor("#cccccc"));

    // set anti alias
    chart.setAntiAlias(true);

    BufferedImage img = chart.createBufferedImage(width, height);
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    try {
        ImageIO.write(img, "png", out);
    } catch (IOException e) {
        log.warn("Error occurred while generating SiteStats chart image data", e);
    }
    return out.toByteArray();
}

From source file:com.att.aro.diagnostics.GraphPanel.java

/**
 * Creates a sample dataset./*from   w ww  .  j  ava2 s .c  o  m*/
 * 
 * @return Series 1.
 */
private static XYPlot createThroughputPlot() {

    // Set up renderer
    XYItemRenderer throughputRenderer = new StandardXYItemRenderer();
    throughputRenderer.setSeriesPaint(0, Color.red);

    // Normalize the throughput axis so that it represents max value
    NumberAxis axis = new NumberAxis();
    axis.setVisible(false);

    // Create plot
    XYPlot throughputPlot = new XYPlot(null, null, axis, throughputRenderer);
    throughputPlot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
    throughputPlot.getRangeAxis().setVisible(false);

    return throughputPlot;
}

From source file:com.att.aro.diagnostics.GraphPanel.java

private static void populateUserEventPlot(XYPlot plot, TraceData.Analysis analysis) {

    final XYIntervalSeriesCollection userInputData = new XYIntervalSeriesCollection();
    if (analysis != null) {

        // create the dataset...
        Map<UserEvent.UserEventType, XYIntervalSeries> seriesMap = new EnumMap<UserEvent.UserEventType, XYIntervalSeries>(
                UserEvent.UserEventType.class);
        for (UserEvent.UserEventType eventType : UserEvent.UserEventType.values()) {
            XYIntervalSeries series = new XYIntervalSeries(eventType);
            seriesMap.put(eventType, series);
            userInputData.addSeries(series);
        }/*from  w ww  .  j  a  v a2 s . c  o m*/
        // Populate the data set
        for (UserEvent event : analysis.getUserEvents()) {
            seriesMap.get(event.getEventType()).add(event.getPressTime(), event.getPressTime(),
                    event.getReleaseTime(), 0.5, 0, 1);
        }

        // Assign ToolTip to renderer
        XYItemRenderer renderer = plot.getRenderer();
        renderer.setSeriesPaint(userInputData.indexOf(UserEventType.SCREEN_LANDSCAPE), Color.BLUE);
        renderer.setSeriesPaint(userInputData.indexOf(UserEventType.SCREEN_PORTRAIT), Color.BLUE);
        renderer.setBaseToolTipGenerator(new XYToolTipGenerator() {

            @Override
            public String generateToolTip(XYDataset dataset, int series, int item) {
                UserEvent.UserEventType eventType = (UserEvent.UserEventType) userInputData.getSeries(series)
                        .getKey();
                return ResourceBundleManager.getEnumString(eventType);
            }
        });

    }

    plot.setDataset(userInputData);
}

From source file:com.att.aro.diagnostics.GraphPanel.java

private static void populateGpsPlot(XYPlot plot, TraceData.Analysis analysis) {
    final XYIntervalSeriesCollection gpsData = new XYIntervalSeriesCollection();
    if (analysis != null) {

        // create the GPS dataset...
        Map<GpsState, XYIntervalSeries> seriesMap = new EnumMap<GpsState, XYIntervalSeries>(GpsState.class);
        for (GpsState eventType : GpsState.values()) {
            XYIntervalSeries series = new XYIntervalSeries(eventType);
            seriesMap.put(eventType, series);
            gpsData.addSeries(series);/*w w w. ja  va2s  .co m*/
        }
        Iterator<GpsInfo> iter = analysis.getGpsInfos().iterator();
        if (iter.hasNext()) {
            while (iter.hasNext()) {
                GpsInfo gpsEvent = iter.next();
                if (gpsEvent.getGpsState() != GpsState.GPS_DISABLED) {
                    seriesMap.get(gpsEvent.getGpsState()).add(gpsEvent.getBeginTimeStamp(),
                            gpsEvent.getBeginTimeStamp(), gpsEvent.getEndTimeStamp(), 0.5, 0, 1);
                }
            }
        }

        XYItemRenderer renderer = plot.getRenderer();
        renderer.setSeriesPaint(gpsData.indexOf(GpsState.GPS_STANDBY), Color.YELLOW);
        renderer.setSeriesPaint(gpsData.indexOf(GpsState.GPS_ACTIVE), new Color(34, 177, 76));

        // Assign ToolTip to renderer
        renderer.setBaseToolTipGenerator(new XYToolTipGenerator() {
            @Override
            public String generateToolTip(XYDataset dataset, int series, int item) {
                GpsState eventType = (GpsState) gpsData.getSeries(series).getKey();
                return MessageFormat.format(rb.getString("gps.tooltip"), dataset.getX(series, item),
                        ResourceBundleManager.getEnumString(eventType));
            }
        });

    }
    plot.setDataset(gpsData);
}

From source file:beproject.MainGUI.java

void liveTweetAnalysis() {
    new DataGenerator(1000).start();
    rate = new TimeSeries("Total count", Second.class);
    rate.setMaximumItemAge(15);/*from   w  w  w  .  j  ava2s .c  o  m*/
    TimeSeriesCollection dataset = new TimeSeriesCollection();
    dataset.addSeries(rate);
    DateAxis domain = new DateAxis("Time");
    NumberAxis range = new NumberAxis("Tweet Count");
    XYItemRenderer renderer = new XYLineAndShapeRenderer(true, false);
    renderer.setSeriesPaint(1, Color.BLUE);
    renderer.setSeriesStroke(0, new BasicStroke(3f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    renderer.setSeriesStroke(1, new BasicStroke(3f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    XYPlot plot = new XYPlot(dataset, domain, range, renderer);
    domain.setAutoRange(true);
    domain.setLowerMargin(0.0);
    domain.setUpperMargin(0.0);
    domain.setTickLabelsVisible(true);
    range.setTickLabelsVisible(true);

    plot.setDomainGridlinesVisible(false);
    range.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    renderer.setBaseItemLabelsVisible(true);

    JFreeChart liveTweetAnalysisChart = new JFreeChart("Tweets Per Second", new Font("Tahoma", Font.BOLD, 24),
            plot, true);
    liveTweetAnalysisChart.setBorderVisible(false);
    liveTweetAnalysisChart.setBorderPaint(null);

    ChartUtilities.applyCurrentTheme(liveTweetAnalysisChart);

    domain.setTickLabelInsets(RectangleInsets.ZERO_INSETS);
    range.setTickMarksVisible(false);
    range.setTickLabelInsets(RectangleInsets.ZERO_INSETS);
    domain.setTickMarksVisible(false);
    liveTweetAnalysisChart.setPadding(RectangleInsets.ZERO_INSETS);

    ChartPanel liveTweetAnalysisChartPanel = new ChartPanel(liveTweetAnalysisChart, true);
    liveTweetAnalysisChartPanel.setBorder(null);

    liveTweetsAnalysisPanel.add(liveTweetAnalysisChartPanel, BorderLayout.CENTER);
    liveTweetsAnalysisPanel.validate();
}

From source file:beproject.MainGUI.java

void createTimeLine() throws SQLException {
    TimeSeriesCollection dataset = new TimeSeriesCollection();
    getTimeLineData(dataset);/*from w w w. jav  a 2s  . c  o m*/
    DateAxis domain = new DateAxis("Time");
    NumberAxis range = new NumberAxis("Tweet Count");
    XYItemRenderer renderer = new XYLineAndShapeRenderer(true, false);
    renderer.setSeriesPaint(1, Color.BLUE);
    renderer.setSeriesStroke(0, new BasicStroke(3f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    renderer.setSeriesStroke(1, new BasicStroke(3f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
    XYPlot plot = new XYPlot(dataset, domain, range, renderer);
    domain.setAutoRange(true);
    domain.setTickUnit(new DateTickUnit(DateTickUnitType.HOUR, 2, Regression.sdf));
    domain.setLowerMargin(0.0);
    domain.setUpperMargin(0.0);
    domain.setTickLabelsVisible(true);
    range.setTickLabelsVisible(true);

    plot.setDomainGridlinesVisible(false);
    range.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    renderer.setBaseItemLabelsVisible(true);

    JFreeChart liveTweetAnalysisChart = new JFreeChart("Rate of tweets per hour",
            new Font("Tahoma", Font.BOLD, 24), plot, true);
    liveTweetAnalysisChart.setBorderVisible(false);

    ChartUtilities.applyCurrentTheme(liveTweetAnalysisChart);

    domain.setTickLabelInsets(RectangleInsets.ZERO_INSETS);
    range.setTickMarksVisible(false);
    range.setTickLabelInsets(RectangleInsets.ZERO_INSETS);
    domain.setTickMarksVisible(false);
    liveTweetAnalysisChart.setPadding(RectangleInsets.ZERO_INSETS);

    ChartPanel liveTweetAnalysisChartPanel = new ChartPanel(liveTweetAnalysisChart, true);
    liveTweetAnalysisChartPanel.setBorder(null);

    if (timeLineChart == null) {
        timeLineChart = liveTweetAnalysisChartPanel;
    } else {
        timeLinePanel.remove(timeLineChart);
        timeLineChart = liveTweetAnalysisChartPanel;
    }
    timeLinePanel.add(timeLineChart);
    timeLinePanel.validate();
}

From source file:com.att.aro.diagnostics.GraphPanel.java

/**
 * Sets rendering color for all different network type data series. 
 * @param renderer Renderer for the data series
 * @param dataSeries Data series//from w  w  w  .  jav  a 2s .  com
 */
static void setRenderingColorForDataSeries(XYItemRenderer renderer,
        final XYIntervalSeriesCollection dataSeries) {
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.none), Color.WHITE);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.LTE), Color.RED);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.WIFI), Color.BLUE);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.UMTS), Color.PINK);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.ETHERNET), Color.BLACK);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.HSDPA), Color.YELLOW);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.HSPA), Color.ORANGE);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.HSPAP), Color.MAGENTA);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.HSUPA), Color.CYAN);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.GPRS), Color.GRAY);
    renderer.setSeriesPaint(dataSeries.indexOf(NetworkType.EDGE), Color.LIGHT_GRAY);
}

From source file:org.sakaiproject.sitestats.impl.ServerWideReportManagerImpl.java

private byte[] createMonthlyLoginChart(int width, int height) {
    IntervalXYDataset dataset1 = getMonthlyLoginsDataSet();
    IntervalXYDataset dataset3 = getMonthlySiteUserDataSet();

    if ((dataset1 == null) || (dataset3 == null)) {
        return generateNoDataChart(width, height);
    }/*from ww w .j a va2s .com*/

    // create plot ...
    XYItemRenderer renderer1 = new XYLineAndShapeRenderer(true, false);
    renderer1.setSeriesStroke(0, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer1.setSeriesPaint(0, Color.RED);

    DateAxis domainAxis = new DateAxis("");
    domainAxis.setTickUnit(new DateTickUnit(DateTickUnit.MONTH, 1, new SimpleDateFormat("yyyy-MM")));
    domainAxis.setTickMarkPosition(DateTickMarkPosition.START);
    domainAxis.setVerticalTickLabels(true);
    domainAxis.setLowerMargin(0.01);
    domainAxis.setUpperMargin(0.01);

    NumberAxis axis1 = new NumberAxis("Total Logins");
    axis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    axis1.setLabelPaint(Color.RED);
    axis1.setTickLabelPaint(Color.RED);

    XYPlot plot1 = new XYPlot(dataset1, null, axis1, renderer1);
    plot1.setBackgroundPaint(Color.lightGray);
    plot1.setDomainGridlinePaint(Color.white);
    plot1.setRangeGridlinePaint(Color.white);

    // AXIS 2
    /*
    NumberAxis axis2 = new NumberAxis("Total Unique Users");
    axis2.setStandardTickUnits (NumberAxis.createIntegerTickUnits ());
    axis2.setLabelPaint(Color.BLUE);
    axis2.setTickLabelPaint(Color.BLUE);
    plot1.setRangeAxis(1, axis2);
            
    plot1.setDataset(1, dataset2);
    plot1.mapDatasetToRangeAxis(1, 1);
    XYItemRenderer renderer2 = new XYLineAndShapeRenderer(true, false);
    renderer2.setSeriesStroke(0, new BasicStroke(2.0f, 
        BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer2.setSeriesPaint (0, Color.BLUE);
    plot1.setRenderer(1, renderer2);
    */

    // add a third dataset and renderer...
    XYItemRenderer renderer3 = new XYLineAndShapeRenderer(true, false);
    renderer3.setSeriesStroke(0, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer3.setSeriesStroke(1, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer3.setSeriesStroke(2, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer3.setSeriesPaint(0, Color.GREEN);
    renderer3.setSeriesPaint(1, Color.BLACK);
    renderer3.setSeriesPaint(2, Color.CYAN);

    axis1 = new NumberAxis("count");
    axis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    XYPlot plot2 = new XYPlot(dataset3, null, axis1, renderer3);
    plot2.setBackgroundPaint(Color.lightGray);
    plot2.setDomainGridlinePaint(Color.white);
    plot2.setRangeGridlinePaint(Color.white);

    CombinedDomainXYPlot cplot = new CombinedDomainXYPlot(domainAxis);
    cplot.add(plot1, 3);
    cplot.add(plot2, 2);
    cplot.setGap(8.0);
    cplot.setDomainGridlinePaint(Color.white);
    cplot.setDomainGridlinesVisible(true);

    // return a new chart containing the overlaid plot...
    JFreeChart chart = new JFreeChart(null, JFreeChart.DEFAULT_TITLE_FONT, cplot, false);
    LegendTitle legend = new LegendTitle(cplot);
    chart.addSubtitle(legend);

    // set background
    chart.setBackgroundPaint(parseColor(statsManager.getChartBackgroundColor()));

    // set chart border
    chart.setPadding(new RectangleInsets(10, 5, 5, 5));
    chart.setBorderVisible(true);
    chart.setBorderPaint(parseColor("#cccccc"));

    // set anti alias
    chart.setAntiAlias(true);

    BufferedImage img = chart.createBufferedImage(width, height);
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    try {
        ImageIO.write(img, "png", out);
    } catch (IOException e) {
        log.warn("Error occurred while generating SiteStats chart image data", e);
    }
    return out.toByteArray();
}