Java Code Examples for org.jfree.chart.JFreeChart#setBorderPaint()

protected void setChartBorder(JFreeChart jfreeChart)
{
	JRLineBox lineBox = getChart().getLineBox();
	if (
		lineBox.getLeftPen().getLineWidth() == 0
		&& lineBox.getBottomPen().getLineWidth() == 0
		&& lineBox.getRightPen().getLineWidth() == 0
		&& lineBox.getTopPen().getLineWidth() == 0
		)
	{
		boolean isVisible = getDefaultValue(defaultChartPropertiesMap, ChartThemesConstants.CHART_BORDER_VISIBLE) == null ?
				false : 
				(Boolean)getDefaultValue(defaultChartPropertiesMap, ChartThemesConstants.CHART_BORDER_VISIBLE);
		if (isVisible)
		{
			BasicStroke stroke = (BasicStroke)getDefaultValue(defaultChartPropertiesMap, ChartThemesConstants.CHART_BORDER_STROKE);
			if (stroke != null)
				jfreeChart.setBorderStroke(stroke);
			Paint paint = (Paint)getDefaultValue(defaultChartPropertiesMap, ChartThemesConstants.CHART_BORDER_PAINT);
			if (paint != null)
				jfreeChart.setBorderPaint(paint);
		}
			
		jfreeChart.setBorderVisible(isVisible);
	}
}
 

protected void setChartBorder(JFreeChart jfreeChart)
{
	ChartSettings chartSettings = getChartSettings();
	JRLineBox lineBox = getChart().getLineBox();
	if (
		lineBox.getLeftPen().getLineWidth() == 0
		&& lineBox.getBottomPen().getLineWidth() == 0
		&& lineBox.getRightPen().getLineWidth() == 0
		&& lineBox.getTopPen().getLineWidth() == 0
		)
	{
		boolean isVisible = chartSettings.getBorderVisible() == null 
			? true 
			: chartSettings.getBorderVisible();
		if (isVisible)
		{
			Stroke stroke = chartSettings.getBorderStroke();
			if (stroke != null)
				jfreeChart.setBorderStroke(stroke);
			Paint paint = chartSettings.getBorderPaint() == null
					? null
					: chartSettings.getBorderPaint().getPaint();
			if (paint != null)
				jfreeChart.setBorderPaint(paint);
		}
			
		jfreeChart.setBorderVisible(isVisible);
	}
}
 

public static JFreeChart generateTimeSeriesChart(String title, List<HistoryAggregateItem> history, String timespan, Calendar cal) throws ParseException {
			
	TimeSeries series = initializeSeries(timespan, cal, history);
		  
	TimeSeriesCollection dataset = new TimeSeriesCollection();  
	dataset.addSeries(series);
	IntervalXYDataset idataset = new XYBarDataset(dataset, 1);
	
	
	JFreeChart chart = org.jfree.chart.ChartFactory.createXYBarChart(  
			title, // Title  
			"Date/time",         // X-axis Label
			true,
			"Hits",       // Y-axis Label  
			idataset,        // Dataset
			PlotOrientation.VERTICAL,  
			true,          // Show legend  
			true,          // Use tooltips  
			false          // Generate URLs  
			);
	
	chart.setBackgroundPaint(Color.WHITE);
	chart.setBorderPaint(Color.BLACK);
	
	XYPlot plot = (XYPlot)chart.getPlot();
	plot.setBackgroundPaint(Color.LIGHT_GRAY);
	
	plot.getRenderer().setSeriesPaint(0, Color.BLUE);
	plot.setDomainGridlinePaint(Color.GRAY);
       plot.setRangeGridlinePaint(Color.GRAY);
	chart.removeLegend();

	return chart;
}
 

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);
	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();
}
 

private byte[] createToolAnalysisChart (int width, int height)
{
	CategoryDataset dataset = getToolAnalysisDataSet ();
	
	if (dataset == null) {
		return generateNoDataChart(width, height);
	}
			
	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.setDefaultItemLabelGenerator(generator);
       renderer.setDefaultItemLabelFont(new Font("SansSerif", Font.PLAIN, 9));
       renderer.setDefaultItemLabelsVisible(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();
}
 

private byte[] createToolAnalysisChart (int width, int height)
{
	CategoryDataset dataset = getToolAnalysisDataSet ();
	
	if (dataset == null) {
		return generateNoDataChart(width, height);
	}
			
	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.setDefaultItemLabelGenerator(generator);
       renderer.setDefaultItemLabelFont(new Font("SansSerif", Font.PLAIN, 9));
       renderer.setDefaultItemLabelsVisible(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();
}
 

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
			);

	// 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();
}
 

/**
 * Creates the demo chart.
 *
 * @return The chart.
 */
private static JFreeChart createChart() {

    XYDataset dataset1 = createDataset("Series 1", 100.0, new Minute(),
            200);

    JFreeChart chart = ChartFactory.createTimeSeriesChart(
        "Multiple Axis Demo 3",
        "Time of Day",
        "Primary Range Axis",
        dataset1,
        true,
        true,
        false
    );

    chart.setBackgroundPaint(Color.white);
    chart.setBorderVisible(true);
    chart.setBorderPaint(Color.BLACK);
    TextTitle subtitle = new TextTitle("Four datasets and four range axes.");
    chart.addSubtitle(subtitle);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setOrientation(PlotOrientation.VERTICAL);
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);

    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    XYItemRenderer renderer = plot.getRenderer();
    renderer.setSeriesPaint(0, Color.black);

    // AXIS 2
    NumberAxis axis2 = new NumberAxis("Range Axis 2");
    axis2.setAutoRangeIncludesZero(false);
    axis2.setLabelPaint(Color.red);
    axis2.setTickLabelPaint(Color.red);
    plot.setRangeAxis(1, axis2);
    plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);

    XYDataset dataset2 = createDataset("Series 2", 1000.0, new Minute(),
            170);
    plot.setDataset(1, dataset2);
    plot.mapDatasetToRangeAxis(1, 1);
    XYItemRenderer renderer2 = new StandardXYItemRenderer();
    renderer2.setSeriesPaint(0, Color.red);
    plot.setRenderer(1, renderer2);

    // AXIS 3
    NumberAxis axis3 = new NumberAxis("Range Axis 3");
    axis3.setLabelPaint(Color.blue);
    axis3.setTickLabelPaint(Color.blue);
    //axis3.setPositiveArrowVisible(true);
    plot.setRangeAxis(2, axis3);

    XYDataset dataset3 = createDataset("Series 3", 10000.0, new Minute(),
            170);
    plot.setDataset(2, dataset3);
    plot.mapDatasetToRangeAxis(2, 2);
    XYItemRenderer renderer3 = new StandardXYItemRenderer();
    renderer3.setSeriesPaint(0, Color.blue);
    plot.setRenderer(2, renderer3);

    // AXIS 4
    NumberAxis axis4 = new NumberAxis("Range Axis 4");
    axis4.setLabelPaint(Color.green);
    axis4.setTickLabelPaint(Color.green);
    plot.setRangeAxis(3, axis4);

    XYDataset dataset4 = createDataset("Series 4", 25.0, new Minute(), 200);
    plot.setDataset(3, dataset4);
    plot.mapDatasetToRangeAxis(3, 3);

    XYItemRenderer renderer4 = new StandardXYItemRenderer();
    renderer4.setSeriesPaint(0, Color.green);
    plot.setRenderer(3, renderer4);

    return chart;
}
 

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
			);

	// 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();
}
 

private byte[] generatePieChart(
		String siteId, PieDataset dataset, int width, int height,
		boolean render3d, float transparency,
		boolean smallFontInDomainAxis) {
	JFreeChart chart = null;
	if(render3d)
		chart = ChartFactory.createPieChart3D(null, dataset, false, false, false);
	else
		chart = ChartFactory.createPieChart(null, dataset, false, false, false);
	PiePlot plot = (PiePlot) chart.getPlot();
	
	// set start angle (135 or 150 deg so minor data has more space on the left)
	plot.setStartAngle(150D);
	
	// set transparency
	plot.setForegroundAlpha(transparency);
	
	// set background
	chart.setBackgroundPaint(parseColor(M_sm.getChartBackgroundColor()));
	plot.setBackgroundPaint(parseColor(M_sm.getChartBackgroundColor()));
	
	// fix border offset		
	chart.setPadding(new RectangleInsets(5,5,5,5));
	plot.setInsets(new RectangleInsets(1,1,1,1));
	// set chart border
	plot.setOutlinePaint(null);
	chart.setBorderVisible(true);
	chart.setBorderPaint(parseColor("#cccccc"));
	
	// set antialias
	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();
}
 

protected void configureChart( final JFreeChart chart ) {
  // Misc Properties
  final TextTitle chartTitle = chart.getTitle();
  if ( chartTitle != null ) {
    final Font titleFont = Font.decode( getTitleFont() );
    chartTitle.setFont( titleFont );
  }

  if ( isAntiAlias() == false ) {
    chart.setAntiAlias( false );
  }

  chart.setBorderVisible( isShowBorder() );

  final Color backgroundColor = parseColorFromString( getBackgroundColor() );
  if ( backgroundColor != null ) {
    chart.setBackgroundPaint( backgroundColor );
  }

  if ( plotBackgroundColor != null ) {
    chart.getPlot().setBackgroundPaint( plotBackgroundColor );
  }
  chart.getPlot().setBackgroundAlpha( plotBackgroundAlpha );
  chart.getPlot().setForegroundAlpha( plotForegroundAlpha );
  final Color borderCol = parseColorFromString( getBorderColor() );
  if ( borderCol != null ) {
    chart.setBorderPaint( borderCol );
  }

  //remove legend if showLegend = false
  if ( !isShowLegend() ) {
    chart.removeLegend();
  } else { //if true format legend
    final LegendTitle chLegend = chart.getLegend();
    if ( chLegend != null ) {
      final RectangleEdge loc = translateEdge( legendLocation.toLowerCase() );
      if ( loc != null ) {
        chLegend.setPosition( loc );
      }
      if ( getLegendFont() != null ) {
        chLegend.setItemFont( Font.decode( getLegendFont() ) );
      }
      if ( !isDrawLegendBorder() ) {
        chLegend.setBorder( BlockBorder.NONE );
      }
      if ( legendBackgroundColor != null ) {
        chLegend.setBackgroundPaint( legendBackgroundColor );
      }
      if ( legendTextColor != null ) {
        chLegend.setItemPaint( legendTextColor );
      }
    }

  }

  final Plot plot = chart.getPlot();
  plot.setNoDataMessageFont( Font.decode( getLabelFont() ) );

  final String message = getNoDataMessage();
  if ( message != null ) {
    plot.setNoDataMessage( message );
  }

  plot.setOutlineVisible( isChartSectionOutline() );

  if ( backgroundImage != null ) {
    if ( plotImageCache != null ) {
      plot.setBackgroundImage( plotImageCache );
    } else {
      final ExpressionRuntime expressionRuntime = getRuntime();
      final ProcessingContext context = expressionRuntime.getProcessingContext();
      final ResourceKey contentBase = context.getContentBase();
      final ResourceManager manager = context.getResourceManager();
      try {
        final ResourceKey key = createKeyFromString( manager, contentBase, backgroundImage );
        final Resource resource = manager.create( key, null, Image.class );
        final Image image = (Image) resource.getResource();
        plot.setBackgroundImage( image );
        plotImageCache = image;
      } catch ( Exception e ) {
        logger.error( "ABSTRACTCHARTEXPRESSION.ERROR_0007_ERROR_RETRIEVING_PLOT_IMAGE", e ); //$NON-NLS-1$
        throw new IllegalStateException( "Failed to process chart" );
      }
    }
  }
}
 

/**
 * Creates the demo chart.
 * 
 * @return The chart.
 */
private static JFreeChart createChart() {

    XYDataset dataset1 = createDataset("Series 1", 100.0, new Minute(), 
            200);
    
    JFreeChart chart = ChartFactory.createTimeSeriesChart(
        "Multiple Axis Demo 3", 
        "Time of Day", 
        "Primary Range Axis",
        dataset1, 
        true, 
        true, 
        false
    );

    chart.setBackgroundPaint( Color.white );
    chart.setBorderVisible( true );
    chart.setBorderPaint( Color.BLACK );
    TextTitle subtitle = new TextTitle("Four datasets and four range axes.");  
    chart.addSubtitle( subtitle );
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setOrientation(PlotOrientation.VERTICAL);
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);
    
    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    plot.getRangeAxis().setFixedDimension(15.0);
    XYItemRenderer renderer = plot.getRenderer();
    renderer.setSeriesPaint(0, Color.black);
   
    // AXIS 2
    NumberAxis axis2 = new NumberAxis("Range Axis 2");
    axis2.setFixedDimension(10.0);
    axis2.setAutoRangeIncludesZero(false);
    axis2.setLabelPaint(Color.red);
    axis2.setTickLabelPaint(Color.red);
    plot.setRangeAxis(1, axis2);
    plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);

    XYDataset dataset2 = createDataset("Series 2", 1000.0, new Minute(), 
            170);
    plot.setDataset(1, dataset2);
    plot.mapDatasetToRangeAxis(1, 1);
    XYItemRenderer renderer2 = new StandardXYItemRenderer();
    renderer2.setSeriesPaint(0, Color.red);
    plot.setRenderer(1, renderer2);
    
    // AXIS 3
    NumberAxis axis3 = new NumberAxis("Range Axis 3");
    axis3.setLabelPaint(Color.blue);
    axis3.setTickLabelPaint(Color.blue);
    //axis3.setPositiveArrowVisible( true );
    plot.setRangeAxis(2, axis3);

    XYDataset dataset3 = createDataset("Series 3", 10000.0, new Minute(), 
            170);
    plot.setDataset(2, dataset3);
    plot.mapDatasetToRangeAxis(2, 2);
    XYItemRenderer renderer3 = new StandardXYItemRenderer();
    renderer3.setSeriesPaint(0, Color.blue);
    plot.setRenderer(2, renderer3);

    // AXIS 4        
    NumberAxis axis4 = new NumberAxis("Range Axis 4");
    axis4.setLabelPaint(Color.green);
    axis4.setTickLabelPaint(Color.green);
    plot.setRangeAxis(3, axis4);
    
    XYDataset dataset4 = createDataset("Series 4", 25.0, new Minute(), 200);
    plot.setDataset(3, dataset4);
    plot.mapDatasetToRangeAxis(3, 3);
    
    XYItemRenderer renderer4 = new StandardXYItemRenderer();
    renderer4.setSeriesPaint(0, Color.green);        
    plot.setRenderer(3, renderer4);
            
    return chart;
}
 

/**
 * Creates the demo chart.
 *
 * @return The chart.
 */
private static JFreeChart createChart() {

    XYDataset dataset1 = createDataset("Series 1", 100.0, new Minute(),
            200);

    JFreeChart chart = ChartFactory.createTimeSeriesChart(
        "Multiple Axis Demo 3",
        "Time of Day",
        "Primary Range Axis",
        dataset1,
        true,
        true,
        false
    );

    chart.setBackgroundPaint( Color.white );
    chart.setBorderVisible( true );
    chart.setBorderPaint( Color.BLACK );
    TextTitle subtitle = new TextTitle("Four datasets and four range axes.");
    chart.addSubtitle( subtitle );
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setOrientation(PlotOrientation.VERTICAL);
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);

    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    plot.getRangeAxis().setFixedDimension(15.0);
    XYItemRenderer renderer = plot.getRenderer();
    renderer.setSeriesPaint(0, Color.black);

    // AXIS 2
    NumberAxis axis2 = new NumberAxis("Range Axis 2");
    axis2.setFixedDimension(10.0);
    axis2.setAutoRangeIncludesZero(false);
    axis2.setLabelPaint(Color.red);
    axis2.setTickLabelPaint(Color.red);
    plot.setRangeAxis(1, axis2);
    plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);

    XYDataset dataset2 = createDataset("Series 2", 1000.0, new Minute(),
            170);
    plot.setDataset(1, dataset2);
    plot.mapDatasetToRangeAxis(1, 1);
    XYItemRenderer renderer2 = new StandardXYItemRenderer();
    renderer2.setSeriesPaint(0, Color.red);
    plot.setRenderer(1, renderer2);

    // AXIS 3
    NumberAxis axis3 = new NumberAxis("Range Axis 3");
    axis3.setLabelPaint(Color.blue);
    axis3.setTickLabelPaint(Color.blue);
    //axis3.setPositiveArrowVisible( true );
    plot.setRangeAxis(2, axis3);

    XYDataset dataset3 = createDataset("Series 3", 10000.0, new Minute(),
            170);
    plot.setDataset(2, dataset3);
    plot.mapDatasetToRangeAxis(2, 2);
    XYItemRenderer renderer3 = new StandardXYItemRenderer();
    renderer3.setSeriesPaint(0, Color.blue);
    plot.setRenderer(2, renderer3);

    // AXIS 4
    NumberAxis axis4 = new NumberAxis("Range Axis 4");
    axis4.setLabelPaint(Color.green);
    axis4.setTickLabelPaint(Color.green);
    plot.setRangeAxis(3, axis4);

    XYDataset dataset4 = createDataset("Series 4", 25.0, new Minute(), 200);
    plot.setDataset(3, dataset4);
    plot.mapDatasetToRangeAxis(3, 3);

    XYItemRenderer renderer4 = new StandardXYItemRenderer();
    renderer4.setSeriesPaint(0, Color.green);
    plot.setRenderer(3, renderer4);

    return chart;
}
 

/**
 * Creates the demo chart.
 *
 * @return The chart.
 */
private static JFreeChart createChart() {

    XYDataset dataset1 = createDataset("Series 1", 100.0, new Minute(),
            200);

    JFreeChart chart = ChartFactory.createTimeSeriesChart(
        "Multiple Axis Demo 3",
        "Time of Day",
        "Primary Range Axis",
        dataset1,
        true,
        true,
        false
    );

    chart.setBackgroundPaint(Color.white);
    chart.setBorderVisible(true);
    chart.setBorderPaint(Color.BLACK);
    TextTitle subtitle = new TextTitle("Four datasets and four range axes.");
    chart.addSubtitle(subtitle);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setOrientation(PlotOrientation.VERTICAL);
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);

    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    XYItemRenderer renderer = plot.getRenderer();
    renderer.setSeriesPaint(0, Color.black);

    // AXIS 2
    NumberAxis axis2 = new NumberAxis("Range Axis 2");
    axis2.setAutoRangeIncludesZero(false);
    axis2.setLabelPaint(Color.red);
    axis2.setTickLabelPaint(Color.red);
    plot.setRangeAxis(1, axis2);
    plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);

    XYDataset dataset2 = createDataset("Series 2", 1000.0, new Minute(),
            170);
    plot.setDataset(1, dataset2);
    plot.mapDatasetToRangeAxis(1, 1);
    XYItemRenderer renderer2 = new StandardXYItemRenderer();
    renderer2.setSeriesPaint(0, Color.red);
    plot.setRenderer(1, renderer2);

    // AXIS 3
    NumberAxis axis3 = new NumberAxis("Range Axis 3");
    axis3.setLabelPaint(Color.blue);
    axis3.setTickLabelPaint(Color.blue);
    //axis3.setPositiveArrowVisible(true);
    plot.setRangeAxis(2, axis3);

    XYDataset dataset3 = createDataset("Series 3", 10000.0, new Minute(),
            170);
    plot.setDataset(2, dataset3);
    plot.mapDatasetToRangeAxis(2, 2);
    XYItemRenderer renderer3 = new StandardXYItemRenderer();
    renderer3.setSeriesPaint(0, Color.blue);
    plot.setRenderer(2, renderer3);

    // AXIS 4
    NumberAxis axis4 = new NumberAxis("Range Axis 4");
    axis4.setLabelPaint(Color.green);
    axis4.setTickLabelPaint(Color.green);
    plot.setRangeAxis(3, axis4);

    XYDataset dataset4 = createDataset("Series 4", 25.0, new Minute(), 200);
    plot.setDataset(3, dataset4);
    plot.mapDatasetToRangeAxis(3, 3);

    XYItemRenderer renderer4 = new StandardXYItemRenderer();
    renderer4.setSeriesPaint(0, Color.green);
    plot.setRenderer(3, renderer4);

    return chart;
}
 

/**
 * Creates the demo chart.
 *
 * @return The chart.
 */
private static JFreeChart createChart() {

    XYDataset dataset1 = createDataset("Series 1", 100.0, new Minute(),
            200);

    JFreeChart chart = ChartFactory.createTimeSeriesChart(
        "Multiple Axis Demo 3",
        "Time of Day",
        "Primary Range Axis",
        dataset1,
        true,
        true,
        false
    );

    chart.setBackgroundPaint(Color.white);
    chart.setBorderVisible(true);
    chart.setBorderPaint(Color.BLACK);
    TextTitle subtitle = new TextTitle("Four datasets and four range axes.");
    chart.addSubtitle(subtitle);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setOrientation(PlotOrientation.VERTICAL);
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);

    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    XYItemRenderer renderer = plot.getRenderer();
    renderer.setSeriesPaint(0, Color.black);

    // AXIS 2
    NumberAxis axis2 = new NumberAxis("Range Axis 2");
    axis2.setAutoRangeIncludesZero(false);
    axis2.setLabelPaint(Color.red);
    axis2.setTickLabelPaint(Color.red);
    plot.setRangeAxis(1, axis2);
    plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);

    XYDataset dataset2 = createDataset("Series 2", 1000.0, new Minute(),
            170);
    plot.setDataset(1, dataset2);
    plot.mapDatasetToRangeAxis(1, 1);
    XYItemRenderer renderer2 = new StandardXYItemRenderer();
    renderer2.setSeriesPaint(0, Color.red);
    plot.setRenderer(1, renderer2);

    // AXIS 3
    NumberAxis axis3 = new NumberAxis("Range Axis 3");
    axis3.setLabelPaint(Color.blue);
    axis3.setTickLabelPaint(Color.blue);
    //axis3.setPositiveArrowVisible(true);
    plot.setRangeAxis(2, axis3);

    XYDataset dataset3 = createDataset("Series 3", 10000.0, new Minute(),
            170);
    plot.setDataset(2, dataset3);
    plot.mapDatasetToRangeAxis(2, 2);
    XYItemRenderer renderer3 = new StandardXYItemRenderer();
    renderer3.setSeriesPaint(0, Color.blue);
    plot.setRenderer(2, renderer3);

    // AXIS 4
    NumberAxis axis4 = new NumberAxis("Range Axis 4");
    axis4.setLabelPaint(Color.green);
    axis4.setTickLabelPaint(Color.green);
    plot.setRangeAxis(3, axis4);

    XYDataset dataset4 = createDataset("Series 4", 25.0, new Minute(), 200);
    plot.setDataset(3, dataset4);
    plot.mapDatasetToRangeAxis(3, 3);

    XYItemRenderer renderer4 = new StandardXYItemRenderer();
    renderer4.setSeriesPaint(0, Color.green);
    plot.setRenderer(3, renderer4);

    return chart;
}
 

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
			);

	// 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();
}
 

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
			);

	// 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();
}
 

private byte[] generatePieChart(
		String siteId, PieDataset dataset, int width, int height,
		boolean render3d, float transparency,
		boolean smallFontInDomainAxis) {
	JFreeChart chart = null;
	if(render3d)
		chart = ChartFactory.createPieChart3D(null, dataset, false, false, false);
	else
		chart = ChartFactory.createPieChart(null, dataset, false, false, false);
	PiePlot plot = (PiePlot) chart.getPlot();
	
	// set start angle (135 or 150 deg so minor data has more space on the left)
	plot.setStartAngle(150D);
	
	// set transparency
	plot.setForegroundAlpha(transparency);
	
	// set background
	chart.setBackgroundPaint(parseColor(M_sm.getChartBackgroundColor()));
	plot.setBackgroundPaint(parseColor(M_sm.getChartBackgroundColor()));
	
	// fix border offset		
	chart.setPadding(new RectangleInsets(5,5,5,5));
	plot.setInsets(new RectangleInsets(1,1,1,1));
	// set chart border
	plot.setOutlinePaint(null);
	chart.setBorderVisible(true);
	chart.setBorderPaint(parseColor("#cccccc"));
	
	// set antialias
	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();
}
 

/**
 * Creates the demo chart.
 *
 * @return The chart.
 */
private static JFreeChart createChart() {

    XYDataset dataset1 = createDataset("Series 1", 100.0, new Minute(),
            200);

    JFreeChart chart = ChartFactory.createTimeSeriesChart(
        "Multiple Axis Demo 3",
        "Time of Day",
        "Primary Range Axis",
        dataset1,
        true,
        true,
        false
    );

    chart.setBackgroundPaint(Color.white);
    chart.setBorderVisible(true);
    chart.setBorderPaint(Color.BLACK);
    TextTitle subtitle = new TextTitle("Four datasets and four range axes.");
    chart.addSubtitle(subtitle);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setOrientation(PlotOrientation.VERTICAL);
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);

    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    XYItemRenderer renderer = plot.getRenderer();
    renderer.setSeriesPaint(0, Color.black);

    // AXIS 2
    NumberAxis axis2 = new NumberAxis("Range Axis 2");
    axis2.setAutoRangeIncludesZero(false);
    axis2.setLabelPaint(Color.red);
    axis2.setTickLabelPaint(Color.red);
    plot.setRangeAxis(1, axis2);
    plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);

    XYDataset dataset2 = createDataset("Series 2", 1000.0, new Minute(),
            170);
    plot.setDataset(1, dataset2);
    plot.mapDatasetToRangeAxis(1, 1);
    XYItemRenderer renderer2 = new StandardXYItemRenderer();
    renderer2.setSeriesPaint(0, Color.red);
    plot.setRenderer(1, renderer2);

    // AXIS 3
    NumberAxis axis3 = new NumberAxis("Range Axis 3");
    axis3.setLabelPaint(Color.blue);
    axis3.setTickLabelPaint(Color.blue);
    //axis3.setPositiveArrowVisible(true);
    plot.setRangeAxis(2, axis3);

    XYDataset dataset3 = createDataset("Series 3", 10000.0, new Minute(),
            170);
    plot.setDataset(2, dataset3);
    plot.mapDatasetToRangeAxis(2, 2);
    XYItemRenderer renderer3 = new StandardXYItemRenderer();
    renderer3.setSeriesPaint(0, Color.blue);
    plot.setRenderer(2, renderer3);

    // AXIS 4
    NumberAxis axis4 = new NumberAxis("Range Axis 4");
    axis4.setLabelPaint(Color.green);
    axis4.setTickLabelPaint(Color.green);
    plot.setRangeAxis(3, axis4);

    XYDataset dataset4 = createDataset("Series 4", 25.0, new Minute(), 200);
    plot.setDataset(3, dataset4);
    plot.mapDatasetToRangeAxis(3, 3);

    XYItemRenderer renderer4 = new StandardXYItemRenderer();
    renderer4.setSeriesPaint(0, Color.green);
    plot.setRenderer(3, renderer4);

    return chart;
}
 

/**
 * Creates the demo chart.
 *
 * @return The chart.
 */
private static JFreeChart createChart() {

    XYDataset dataset1 = createDataset("Series 1", 100.0, new Minute(),
            200);

    JFreeChart chart = ChartFactory.createTimeSeriesChart(
        "Multiple Axis Demo 3",
        "Time of Day",
        "Primary Range Axis",
        dataset1,
        true,
        true,
        false
    );

    chart.setBackgroundPaint(Color.white);
    chart.setBorderVisible(true);
    chart.setBorderPaint(Color.BLACK);
    TextTitle subtitle = new TextTitle("Four datasets and four range axes.");
    chart.addSubtitle(subtitle);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setOrientation(PlotOrientation.VERTICAL);
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);

    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    XYItemRenderer renderer = plot.getRenderer();
    renderer.setSeriesPaint(0, Color.black);

    // AXIS 2
    NumberAxis axis2 = new NumberAxis("Range Axis 2");
    axis2.setAutoRangeIncludesZero(false);
    axis2.setLabelPaint(Color.red);
    axis2.setTickLabelPaint(Color.red);
    plot.setRangeAxis(1, axis2);
    plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);

    XYDataset dataset2 = createDataset("Series 2", 1000.0, new Minute(),
            170);
    plot.setDataset(1, dataset2);
    plot.mapDatasetToRangeAxis(1, 1);
    XYItemRenderer renderer2 = new StandardXYItemRenderer();
    renderer2.setSeriesPaint(0, Color.red);
    plot.setRenderer(1, renderer2);

    // AXIS 3
    NumberAxis axis3 = new NumberAxis("Range Axis 3");
    axis3.setLabelPaint(Color.blue);
    axis3.setTickLabelPaint(Color.blue);
    //axis3.setPositiveArrowVisible(true);
    plot.setRangeAxis(2, axis3);

    XYDataset dataset3 = createDataset("Series 3", 10000.0, new Minute(),
            170);
    plot.setDataset(2, dataset3);
    plot.mapDatasetToRangeAxis(2, 2);
    XYItemRenderer renderer3 = new StandardXYItemRenderer();
    renderer3.setSeriesPaint(0, Color.blue);
    plot.setRenderer(2, renderer3);

    // AXIS 4
    NumberAxis axis4 = new NumberAxis("Range Axis 4");
    axis4.setLabelPaint(Color.green);
    axis4.setTickLabelPaint(Color.green);
    plot.setRangeAxis(3, axis4);

    XYDataset dataset4 = createDataset("Series 4", 25.0, new Minute(), 200);
    plot.setDataset(3, dataset4);
    plot.mapDatasetToRangeAxis(3, 3);

    XYItemRenderer renderer4 = new StandardXYItemRenderer();
    renderer4.setSeriesPaint(0, Color.green);
    plot.setRenderer(3, renderer4);

    return chart;
}