Example usage for org.jfree.chart JFreeChart setPadding

Introduction

In this page you can find the example usage for org.jfree.chart JFreeChart setPadding.

Prototype

public void setPadding(RectangleInsets padding) 

Source Link

Document

Sets the padding between the chart border and the chart drawing area, and sends a ChartChangeEvent to all registered listeners.

Usage

From source file:com.itemanalysis.jmetrik.graph.nicc.NonparametricCurvePanel.java

private void createChart(String name, String title, String xLabel, String yLabel, double minScore,
        double maxScore) {
    XYSeriesCollection dataset = new XYSeriesCollection();
    final JFreeChart chart = ChartFactory.createXYLineChart(title, // chart title
            xLabel, // x axis label
            yLabel, // y axis label
            dataset, // data
            chartOrientation, // chart orientation
            showLegend, // include legend
            true, // tooltips
            false // urls
    );/*from w  w  w  . ja v  a 2s .c om*/

    if (showLegend) {
        LegendTitle chartTitle = chart.getLegend();
        chartTitle.setPosition(legendPosition);
    }

    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setBackgroundPaint(Color.WHITE);
    plot.setRangeGridlinePaint(Color.LIGHT_GRAY);
    plot.setDomainGridlinePaint(Color.LIGHT_GRAY);

    //        //can use this code to fix the number of tick marks on the y-axis
    //        NumberFormat myFormatter = new DecimalFormat("#.0");
    //        NumberAxis yaxis = (NumberAxis)plot.getRangeAxis();
    //        yaxis.setTickUnit(new NumberTickUnit(.1, myFormatter));

    ChartPanel panel = new ChartPanel(chart);
    panel.getPopupMenu().addSeparator();
    panel.setPreferredSize(new Dimension(width, height));

    //        this.addLocalEPSMenuItem(this, panel.getPopupMenu(), chart);//remove this line for public release versions

    chart.setPadding(new RectangleInsets(20.0, 5.0, 20.0, 5.0));
    charts.put(name, chart);

    JPanel subPanel = new JPanel();//additional panel needed to prevent gridlayout from stretching graph
    subPanel.add(panel);
    subPanel.setBackground(Color.WHITE);
    this.add(subPanel);

}

---

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

private byte[] generateBoxAndWhiskerChart(BoxAndWhiskerCategoryDataset dataset, int width, int height) {
    JFreeChart chart = ChartFactory.createBoxAndWhiskerChart(null, null, null, dataset, false);

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

    // set chart border
    chart.setPadding(new RectangleInsets(10, 5, 5, 5));
    chart.setBorderVisible(true);//from   ww w  .j a  v a2 s. c o m
    chart.setBorderPaint(parseColor("#cccccc"));

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

    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    plot.setDomainGridlinePaint(Color.white);
    plot.setDomainGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.white);

    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    CategoryAxis domainAxis = (CategoryAxis) plot.getDomainAxis();
    domainAxis.setLowerMargin(0.0);
    domainAxis.setUpperMargin(0.0);

    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:org.sakaiproject.sitestats.impl.ServerWideReportManagerImpl.java

private byte[] createWeeklyLoginChart(int width, int height) {
    IntervalXYDataset dataset1 = getWeeklyLoginsDataSet();
    IntervalXYDataset dataset2 = getWeeklySiteUserDataSet();

    if ((dataset1 == null) || (dataset2 == null)) {
        return generateNoDataChart(width, height);
    }/* w ww  .j a v a  2s .c o m*/

    // create plot ...
    XYItemRenderer renderer1 = new XYLineAndShapeRenderer(true, false);
    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));
    renderer1.setSeriesPaint(0, Color.RED);
    renderer1.setSeriesPaint(0, Color.BLUE);

    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: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);
    }//  ww  w .  j  a va  2s . c o  m

    // 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: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 w  ww  . jav  a  2  s.c  om*/

    // 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();
}

---

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

private byte[] generateLayeredBarChart(CategoryDataset dataset, int width, int height) {
    JFreeChart chart = ChartFactory.createBarChart(null, // chart title
            null, // domain axis label
            null, // range axis label
            dataset, // data
            PlotOrientation.VERTICAL, // the plot orientation
            true, // legend
            true, // tooltips
            false // urls
    );/*  w  ww .  j  av  a 2s  . c  o  m*/

    // 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);

    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    // disable bar outlines...
    LayeredBarRenderer renderer = new LayeredBarRenderer();
    renderer.setDrawBarOutline(false);
    renderer.setSeriesBarWidth(0, .6);
    renderer.setSeriesBarWidth(1, .8);
    renderer.setSeriesBarWidth(2, 1.0);
    plot.setRenderer(renderer);

    // for this renderer, we need to draw the first series last...
    plot.setRowRenderingOrder(SortOrder.DESCENDING);

    // set up gradient paints for series...
    GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64));
    GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, new Color(0, 64, 0));
    GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(64, 0, 0));
    renderer.setSeriesPaint(0, gp0);
    renderer.setSeriesPaint(1, gp1);
    renderer.setSeriesPaint(2, gp2);

    CategoryAxis domainAxis = (CategoryAxis) plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(CategoryLabelPositions.DOWN_45);
    domainAxis.setLowerMargin(0.0);
    domainAxis.setUpperMargin(0.0);

    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:org.sakaiproject.sitestats.impl.ServerWideReportManagerImpl.java

private byte[] generateStackedAreaChart(CategoryDataset dataset, int width, int height) {
    JFreeChart chart = ChartFactory.createStackedAreaChart(null, // chart title
            null, // domain axis label
            null, // range axis label
            dataset, // data
            PlotOrientation.VERTICAL, // the plot orientation
            true, // legend
            true, // tooltips
            false // urls
    );//from   w  ww.j a  v a2 s.c o  m

    // 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);

    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    // set transparency
    plot.setForegroundAlpha(0.7f);
    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinesVisible(true);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.white);

    // set colour of regular users using Karate belt colour: white, green, blue, brown, black/gold
    CategoryItemRenderer renderer = plot.getRenderer();
    renderer.setSeriesPaint(0, new Color(205, 173, 0)); // gold users
    renderer.setSeriesPaint(1, new Color(139, 69, 19));
    renderer.setSeriesPaint(2, Color.BLUE);
    renderer.setSeriesPaint(3, Color.GREEN);
    renderer.setSeriesPaint(4, Color.WHITE);

    // set the range axis to display integers only...
    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    CategoryAxis domainAxis = (CategoryAxis) plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(CategoryLabelPositions.DOWN_45);
    domainAxis.setLowerMargin(0.0);
    domainAxis.setUpperMargin(0.0);

    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:org.sakaiproject.sitestats.impl.ServerWideReportManagerImpl.java

private byte[] createToolAnalysisChart(int width, int height) {
    CategoryDataset dataset = getToolAnalysisDataSet();

    if (dataset == null) {
        return generateNoDataChart(width, height);
    }//from  w w w  .j a va  2s . c  om

    JFreeChart chart = ChartFactory.createBarChart(null, // chart title
            null, // domain axis label
            null, // range axis label
            dataset, // data
            PlotOrientation.HORIZONTAL, // the plot orientation
            false, // legend
            false, // tooltips
            false // urls
    );

    // 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);

    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    // set transparency
    plot.setForegroundAlpha(0.7f);
    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinesVisible(false);
    plot.setRangeGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.white);

    CategoryAxis domainAxis = plot.getDomainAxis();
    domainAxis.setVisible(false);
    domainAxis.setUpperMargin(0);
    domainAxis.setLowerMargin(0);

    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setUpperMargin(0.20);
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    CategoryItemLabelGenerator generator = new StandardCategoryItemLabelGenerator("{1}",
            NumberFormat.getInstance(new ResourceLoader().getLocale()));
    renderer.setBaseItemLabelGenerator(generator);
    renderer.setBaseItemLabelFont(new Font("SansSerif", Font.PLAIN, 9));
    renderer.setBaseItemLabelsVisible(true);
    renderer.setItemMargin(0);
    renderer.setSeriesPaint(0, Color.BLUE);

    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:org.sakaiproject.sitestats.impl.chart.ChartServiceImpl.java

private byte[] generateLineChart(String siteId, CategoryDataset dataset, int width, int height,
        boolean render3d, float transparency, boolean itemLabelsVisible, boolean smallFontInDomainAxis) {
    JFreeChart chart = null;
    if (render3d)
        chart = ChartFactory.createLineChart3D(null, null, null, dataset, PlotOrientation.VERTICAL, true, false,
                false);// www  . j  ava 2s. c o m
    else
        chart = ChartFactory.createLineChart(null, null, null, dataset, PlotOrientation.VERTICAL, true, false,
                false);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    // set transparency
    plot.setForegroundAlpha(transparency);

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

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

    // set antialias
    chart.setAntiAlias(true);

    // set domain axis font size
    if (smallFontInDomainAxis && !canUseNormalFontSize(width)) {
        plot.getDomainAxis().setTickLabelFont(new Font("SansSerif", Font.PLAIN, 8));
        plot.getDomainAxis().setCategoryMargin(0.05);
    }

    // set outline
    LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
    renderer.setDrawOutlines(true);

    // item labels
    if (itemLabelsVisible) {
        plot.getRangeAxis().setUpperMargin(0.2);
        renderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator() {
            private static final long serialVersionUID = 1L;

            @Override
            public String generateLabel(CategoryDataset dataset, int row, int column) {
                Number n = dataset.getValue(row, column);
                if (n.intValue() != 0)
                    //return n.intValue()+"";
                    return n.toString();
                return "";
            }
        });
        renderer.setItemLabelFont(new Font("SansSerif", Font.PLAIN, 8));
        renderer.setItemLabelsVisible(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:org.sakaiproject.sitestats.impl.chart.ChartServiceImpl.java

private byte[] generateBarChart(String siteId, CategoryDataset dataset, int width, int height, boolean render3d,
        float transparency, boolean itemLabelsVisible, boolean smallFontInDomainAxis) {
    JFreeChart chart = null;
    if (render3d)
        chart = ChartFactory.createBarChart3D(null, null, null, dataset, PlotOrientation.VERTICAL, true, false,
                false);/*from  w  w w  .ja  v  a 2 s  .  c o m*/
    else
        chart = ChartFactory.createBarChart(null, null, null, dataset, PlotOrientation.VERTICAL, true, false,
                false);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    // set transparency
    plot.setForegroundAlpha(transparency);

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

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

    // allow longer legends (prevent truncation)
    plot.getDomainAxis().setMaximumCategoryLabelLines(50);
    plot.getDomainAxis().setMaximumCategoryLabelWidthRatio(1.0f);

    // set antialias
    chart.setAntiAlias(true);

    // set domain axis font size
    if (smallFontInDomainAxis && !canUseNormalFontSize(width)) {
        plot.getDomainAxis().setTickLabelFont(new Font("SansSerif", Font.PLAIN, 8));
        plot.getDomainAxis().setCategoryMargin(0.05);
    }

    // set bar outline
    BarRenderer barrenderer = (BarRenderer) plot.getRenderer();
    barrenderer.setDrawBarOutline(true);
    if (smallFontInDomainAxis && !canUseNormalFontSize(width))
        barrenderer.setItemMargin(0.05);
    else
        barrenderer.setItemMargin(0.10);

    // item labels
    if (itemLabelsVisible) {
        plot.getRangeAxis().setUpperMargin(0.2);
        barrenderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator() {
            private static final long serialVersionUID = 1L;

            @Override
            public String generateLabel(CategoryDataset dataset, int row, int column) {
                Number n = dataset.getValue(row, column);
                if (n.doubleValue() != 0) {
                    if ((double) n.intValue() == n.doubleValue())
                        return Integer.toString(n.intValue());
                    else
                        return Double.toString(Util.round(n.doubleValue(), 1));
                }
                return "";
            }
        });
        barrenderer.setItemLabelFont(new Font("SansSerif", Font.PLAIN, 8));
        barrenderer.setItemLabelsVisible(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();
}

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