Java Code Examples for org.jfree.chart.plot.CategoryPlot#setDomainGridlinesVisible()

/**
 * Creates the histogram chart.
 */
private JFreeChart createBarChart() {
	JFreeChart chart = ChartFactory.createBarChart(null, null, null, createBarDataset(), PlotOrientation.VERTICAL,
			false, false, false);
	setDefaultChartFonts(chart);
	chart.setBackgroundPaint(null);
	chart.setBackgroundImageAlpha(0.0f);

	CategoryPlot plot = (CategoryPlot) chart.getPlot();
	plot.setRangeGridlinesVisible(false);
	plot.setDomainGridlinesVisible(false);
	plot.setOutlineVisible(false);
	plot.setRangeZeroBaselineVisible(false);
	plot.setDomainGridlinesVisible(false);
	plot.setBackgroundPaint(COLOR_INVISIBLE);
	plot.setBackgroundImageAlpha(0.0f);

	BarRenderer renderer = (BarRenderer) plot.getRenderer();
	renderer.setSeriesPaint(0, AttributeGuiTools.getColorForValueType(Ontology.NOMINAL));
	renderer.setBarPainter(new StandardBarPainter());
	renderer.setDrawBarOutline(true);
	renderer.setShadowVisible(false);

	return chart;
}
 

/**
 * Creates a chart.
 *
 * @return A chart.
 */
private static JFreeChart createChart() {

    CategoryDataset dataset1 = createDataset1();
    NumberAxis rangeAxis1 = new NumberAxis("Value");
    rangeAxis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    LineAndShapeRenderer renderer1 = new LineAndShapeRenderer();
    renderer1.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot1 = new CategoryPlot(dataset1, null, rangeAxis1,
            renderer1);
    subplot1.setDomainGridlinesVisible(true);

    CategoryDataset dataset2 = createDataset2();
    NumberAxis rangeAxis2 = new NumberAxis("Value");
    rangeAxis2.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    BarRenderer renderer2 = new BarRenderer();
    renderer2.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot2 = new CategoryPlot(dataset2, null, rangeAxis2,
            renderer2);
    subplot2.setDomainGridlinesVisible(true);

    CategoryAxis domainAxis = new CategoryAxis("Category");
    CombinedCategoryPlot plot = new CombinedCategoryPlot(
            domainAxis, new NumberAxis("Range"));
    plot.add(subplot1, 2);
    plot.add(subplot2, 1);

    JFreeChart result = new JFreeChart(
            "Combined Domain Category Plot Demo",
            new Font("SansSerif", Font.BOLD, 12), plot, true);
    return result;

}
 

/**
 * Creates a sample plot.
 * 
 * @return A plot.
 */
private CombinedRangeCategoryPlot createPlot() {
    CategoryDataset dataset1 = createDataset1();
    NumberAxis rangeAxis1 = new NumberAxis("Value");
    rangeAxis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    LineAndShapeRenderer renderer1 = new LineAndShapeRenderer();
    renderer1.setBaseToolTipGenerator(
        new StandardCategoryToolTipGenerator()
    );
    CategoryPlot subplot1 = new CategoryPlot(
        dataset1, null, rangeAxis1, renderer1
    );
    subplot1.setDomainGridlinesVisible(true);
    
    CategoryDataset dataset2 = createDataset2();
    NumberAxis rangeAxis2 = new NumberAxis("Value");
    rangeAxis2.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    BarRenderer renderer2 = new BarRenderer();
    renderer2.setBaseToolTipGenerator(
        new StandardCategoryToolTipGenerator()
    );
    CategoryPlot subplot2 = new CategoryPlot(
        dataset2, null, rangeAxis2, renderer2
    );
    subplot2.setDomainGridlinesVisible(true);

    NumberAxis rangeAxis = new NumberAxis("Value");
    CombinedRangeCategoryPlot plot 
        = new CombinedRangeCategoryPlot(rangeAxis);
    plot.add(subplot1, 2);
    plot.add(subplot2, 1);
    return plot;
}
 

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();
}
 

/**
 * Creates a chart.
 *
 * @return A chart.
 */
private static JFreeChart createChart() {

    CategoryDataset dataset1 = createDataset1();
    NumberAxis rangeAxis1 = new NumberAxis("Value");
    rangeAxis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    LineAndShapeRenderer renderer1 = new LineAndShapeRenderer();
    renderer1.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot1 = new CategoryPlot(dataset1, null, rangeAxis1,
            renderer1);
    subplot1.setDomainGridlinesVisible(true);

    CategoryDataset dataset2 = createDataset2();
    NumberAxis rangeAxis2 = new NumberAxis("Value");
    rangeAxis2.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    BarRenderer renderer2 = new BarRenderer();
    renderer2.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot2 = new CategoryPlot(dataset2, null, rangeAxis2,
            renderer2);
    subplot2.setDomainGridlinesVisible(true);

    CategoryAxis domainAxis = new CategoryAxis("Category");
    CombinedCategoryPlot plot = new CombinedCategoryPlot(
            domainAxis, new NumberAxis("Range"));
    plot.add(subplot1, 2);
    plot.add(subplot2, 1);

    JFreeChart result = new JFreeChart(
            "Combined Domain Category Plot Demo",
            new Font("SansSerif", Font.BOLD, 12), plot, true);
    return result;

}
 

/**
 * Creates a sample plot.
 *
 * @return A sample plot.
 */
private CombinedDomainCategoryPlot createPlot() {

    CategoryDataset dataset1 = createDataset1();
    NumberAxis rangeAxis1 = new NumberAxis("Value");
    rangeAxis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    LineAndShapeRenderer renderer1 = new LineAndShapeRenderer();
    renderer1.setBaseToolTipGenerator(
        new StandardCategoryToolTipGenerator()
    );
    CategoryPlot subplot1 = new CategoryPlot(
        dataset1, null, rangeAxis1, renderer1
    );
    subplot1.setDomainGridlinesVisible(true);

    CategoryDataset dataset2 = createDataset2();
    NumberAxis rangeAxis2 = new NumberAxis("Value");
    rangeAxis2.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    BarRenderer renderer2 = new BarRenderer();
    renderer2.setBaseToolTipGenerator(
        new StandardCategoryToolTipGenerator()
    );
    CategoryPlot subplot2 = new CategoryPlot(
        dataset2, null, rangeAxis2, renderer2
    );
    subplot2.setDomainGridlinesVisible(true);

    CategoryAxis domainAxis = new CategoryAxis("Category");
    CombinedDomainCategoryPlot plot
        = new CombinedDomainCategoryPlot(domainAxis);
    plot.add(subplot1, 2);
    plot.add(subplot2, 1);
    return plot;

}
 

/**
 * Creates a sample plot.
 * 
 * @return A sample plot.
 */
private CombinedDomainCategoryPlot createPlot() {
    
    CategoryDataset dataset1 = createDataset1();
    NumberAxis rangeAxis1 = new NumberAxis("Value");
    rangeAxis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    LineAndShapeRenderer renderer1 = new LineAndShapeRenderer();
    renderer1.setBaseToolTipGenerator(
        new StandardCategoryToolTipGenerator()
    );
    CategoryPlot subplot1 = new CategoryPlot(
        dataset1, null, rangeAxis1, renderer1
    );
    subplot1.setDomainGridlinesVisible(true);
    
    CategoryDataset dataset2 = createDataset2();
    NumberAxis rangeAxis2 = new NumberAxis("Value");
    rangeAxis2.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    BarRenderer renderer2 = new BarRenderer();
    renderer2.setBaseToolTipGenerator(
        new StandardCategoryToolTipGenerator()
    );
    CategoryPlot subplot2 = new CategoryPlot(
        dataset2, null, rangeAxis2, renderer2
    );
    subplot2.setDomainGridlinesVisible(true);

    CategoryAxis domainAxis = new CategoryAxis("Category");
    CombinedDomainCategoryPlot plot 
        = new CombinedDomainCategoryPlot(domainAxis);
    plot.add(subplot1, 2);
    plot.add(subplot2, 1);
    return plot;
    
}
 

/**
 * Creates a sample plot.
 *
 * @return A plot.
 */
private CombinedRangeCategoryPlot createPlot() {
    CategoryDataset dataset1 = createDataset1();
    CategoryAxis catAxis1 = new CategoryAxis("Category");
    LineAndShapeRenderer renderer1 = new LineAndShapeRenderer();
    renderer1.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot1 = new CategoryPlot(dataset1, catAxis1, null,
            renderer1);
    subplot1.setDomainGridlinesVisible(true);

    CategoryDataset dataset2 = createDataset2();
    CategoryAxis catAxis2 = new CategoryAxis("Category");
    BarRenderer renderer2 = new BarRenderer();
    renderer2.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot2 = new CategoryPlot(dataset2, catAxis2, null,
            renderer2);
    subplot2.setDomainGridlinesVisible(true);

    NumberAxis rangeAxis = new NumberAxis("Value");
    CombinedRangeCategoryPlot plot = new CombinedRangeCategoryPlot(
            rangeAxis);
    plot.add(subplot1, 2);
    plot.add(subplot2, 1);
    return plot;
}
 

/**
 * Creates a chart.
 *
 * @return A chart.
 */
private static JFreeChart createChart() {

    CategoryDataset dataset1 = createDataset1();
    NumberAxis rangeAxis1 = new NumberAxis("Value");
    rangeAxis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    LineAndShapeRenderer renderer1 = new LineAndShapeRenderer();
    renderer1.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot1 = new CategoryPlot(dataset1, null, rangeAxis1,
            renderer1);
    subplot1.setDomainGridlinesVisible(true);

    CategoryDataset dataset2 = createDataset2();
    NumberAxis rangeAxis2 = new NumberAxis("Value");
    rangeAxis2.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    BarRenderer renderer2 = new BarRenderer();
    renderer2.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot2 = new CategoryPlot(dataset2, null, rangeAxis2,
            renderer2);
    subplot2.setDomainGridlinesVisible(true);

    CategoryAxis domainAxis = new CategoryAxis("Category");
    CombinedCategoryPlot plot = new CombinedCategoryPlot(
            domainAxis, new NumberAxis("Range"));
    plot.add(subplot1, 2);
    plot.add(subplot2, 1);

    JFreeChart result = new JFreeChart(
            "Combined Domain Category Plot Demo",
            new Font("SansSerif", Font.BOLD, 12), plot, true);
    return result;

}
 

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();
}
 

public JFreeChart createChart(DatasetMap datasetMap) {

		BoxAndWhiskerCategoryDataset dataset=(BoxAndWhiskerCategoryDataset)datasetMap.getDatasets().get("1"); 

		JFreeChart chart = ChartFactory.createBoxAndWhiskerChart(
				name, categoryLabel, valueLabel, dataset, 
				false);

		TextTitle title =setStyleTitle(name, styleTitle);
		chart.setTitle(title);
		if(subName!= null && !subName.equals("")){
			TextTitle subTitle =setStyleTitle(subName, styleSubTitle);
			chart.addSubtitle(subTitle);
		}
		
		CategoryPlot plot = (CategoryPlot) chart.getPlot();
		BoxAndWhiskerRenderer renderer=(BoxAndWhiskerRenderer)plot.getRenderer();
		chart.setBackgroundPaint(Color.white);

		plot.setBackgroundPaint(new Color(Integer.decode("#c0c0c0").intValue()));
		plot.setDomainGridlinePaint(Color.WHITE);
		plot.setDomainGridlinesVisible(true);
		plot.setRangeGridlinePaint(Color.white);
		renderer.setFillBox(true);
		renderer.setArtifactPaint(Color.BLACK);
		renderer.setSeriesPaint(0,new Color(Integer.decode("#0000FF").intValue()));

		NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
		rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
		rangeAxis.setRange(min, max);

		return chart;
	}
 

@Override
protected JFreeChart createGanttChart() throws JRException
{

	JFreeChart jfreeChart = super.createGanttChart();
	CategoryPlot categoryPlot = (CategoryPlot)jfreeChart.getPlot();
	categoryPlot.getDomainAxis().setCategoryLabelPositions(CategoryLabelPositions.STANDARD);
	categoryPlot.setDomainGridlinesVisible(true);
	categoryPlot.setDomainGridlinePosition(CategoryAnchor.END);
	categoryPlot.setDomainGridlineStroke(new BasicStroke(
			0.5f,
			BasicStroke.CAP_BUTT,
			BasicStroke.JOIN_MITER,
			50,
			new float[] {1},
			0
			)
	);

	categoryPlot.setDomainGridlinePaint(ChartThemesConstants.GRAY_PAINT_134);

	categoryPlot.setRangeGridlinesVisible(true);
	categoryPlot.setRangeGridlineStroke(new BasicStroke(
			0.5f,
			BasicStroke.CAP_BUTT,
			BasicStroke.JOIN_MITER,
			50,
			new float[] {1},
			0
			)
	);

	categoryPlot.setRangeGridlinePaint(ChartThemesConstants.GRAY_PAINT_134);
	categoryPlot.getDomainAxis().setTickLabelsVisible(
			//barPlot.isShowTickLabels()
			true
			);
	CategoryItemRenderer categoryRenderer = categoryPlot.getRenderer();
	categoryRenderer.setBaseItemLabelsVisible(true);
	BarRenderer barRenderer = (BarRenderer)categoryRenderer;
	barRenderer.setSeriesPaint(0, ChartThemesConstants.EYE_CANDY_SIXTIES_COLORS.get(3));
	barRenderer.setSeriesPaint(1, ChartThemesConstants.EYE_CANDY_SIXTIES_COLORS.get(0));
	CategoryDataset categoryDataset = categoryPlot.getDataset();
	if (categoryDataset != null)
	{
		for (int i = 0; i < categoryDataset.getRowCount(); i++)
		{
			barRenderer.setSeriesItemLabelFont(i, categoryPlot.getDomainAxis().getTickLabelFont());
			barRenderer.setSeriesItemLabelsVisible(i, true);
		}
	}
	categoryPlot.setOutlinePaint(Color.DARK_GRAY);
	categoryPlot.setOutlineStroke(new BasicStroke(1.5f));
	categoryPlot.setOutlineVisible(true);
	return jfreeChart;
}
 

@Override
protected void configurePlot(Plot plot, JRChartPlot jrPlot)
{

	super.configurePlot(plot, jrPlot);

	if(plot instanceof CategoryPlot)
	{
		CategoryPlot categoryPlot = (CategoryPlot)plot;
		CategoryItemRenderer categoryRenderer = categoryPlot.getRenderer();
		CategoryDataset categoryDataset = categoryPlot.getDataset();
		if(categoryDataset != null)
		{
			for(int i = 0; i < categoryDataset.getRowCount(); i++)
			{
				categoryRenderer.setSeriesOutlinePaint(i, ChartThemesConstants.TRANSPARENT_PAINT);
			}
		}
		categoryPlot.setRangeGridlinePaint(ChartThemesConstants.GRAY_PAINT_217);
		categoryPlot.setRangeGridlineStroke(new BasicStroke(0.5f));
		categoryPlot.setDomainGridlinesVisible(false);
		categoryPlot.getDomainAxis().setCategoryLabelPositions(CategoryLabelPositions.UP_45);
	}
	else if(plot instanceof XYPlot)
	{
		XYPlot xyPlot = (XYPlot)plot;
		XYItemRenderer xyItemRenderer = xyPlot.getRenderer();
		XYDataset xyDataset = xyPlot.getDataset();
		if(xyDataset != null)
		{
			for(int i = 0; i < xyDataset.getSeriesCount(); i++)
			{
				xyItemRenderer.setSeriesOutlinePaint(i, ChartThemesConstants.TRANSPARENT_PAINT);
			}
		}
		xyPlot.setRangeGridlinePaint(ChartThemesConstants.GRAY_PAINT_217);
		xyPlot.setRangeGridlineStroke(new BasicStroke(0.5f));
		xyPlot.setDomainGridlinesVisible(false);
		xyPlot.setRangeZeroBaselineVisible(true);
	}
}
 

/**
 * Creates a sample chart.
 * 
 * @param dataset  the dataset.
 * 
 * @return The chart.
 */
private static JFreeChart createChart(CategoryDataset dataset) {
    
    // create the chart...
    JFreeChart chart = ChartFactory.createBarChart(
        "Bar Chart Demo 1",       // chart title
        "Category",               // domain axis label
        "Value",                  // range axis label
        dataset,                  // data
        PlotOrientation.VERTICAL, // orientation
        true,                     // include legend
        true,                     // tooltips?
        false                     // URLs?
    );

    // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...

    // set the background color for the chart...
    chart.setBackgroundPaint(Color.white);

    // get a reference to the plot for further customisation...
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setDomainGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.white);

    // ******************************************************************
    //  More than 150 demo applications are included with the JFreeChart
    //  Developer Guide...for more information, see:
    //
    //  >   http://www.object-refinery.com/jfreechart/guide.html
    //
    // ******************************************************************
    
    // set the range axis to display integers only...
    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    // disable bar outlines...
    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    renderer.setDrawBarOutline(false);
    
    // 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 = plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(
            CategoryLabelPositions.createUpRotationLabelPositions(
                    Math.PI / 6.0));
    // OPTIONAL CUSTOMISATION COMPLETED.
    
    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 JFreeChart createChart(CategoryDataset dataset, HttpServletRequest request) {
    JFreeChart chart = ChartFactory.createBarChart(null, null, null, dataset, PlotOrientation.HORIZONTAL, false, false, false);

    CategoryPlot plot = chart.getCategoryPlot();
    Paint background = new GradientPaint(0, 0, Color.lightGray, 0, IMAGE_MIN_HEIGHT, Color.white);
    plot.setBackgroundPaint(background);
    plot.setDomainGridlinePaint(Color.white);
    plot.setDomainGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.white);
    plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);

    LogarithmicAxis rangeAxis = new LogarithmicAxis(null);
    rangeAxis.setStrictValuesFlag(false);
    rangeAxis.setAllowNegativesFlag(true);
    plot.setRangeAxis(rangeAxis);

    // Disable bar outlines.
    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    renderer.setDrawBarOutline(false);

    // Set up gradient paint for series.
    GradientPaint gp0 = new GradientPaint(
            0.0f, 0.0f, Color.blue,
            0.0f, 0.0f, new Color(0, 0, 64)
    );
    renderer.setSeriesPaint(0, gp0);

    // Rotate labels.
    CategoryAxis domainAxis = plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0));

    // Set theme-specific colors.
    Color bgColor = getBackground(request);
    Color fgColor = getForeground(request);

    chart.setBackgroundPaint(bgColor);

    domainAxis.setTickLabelPaint(fgColor);
    domainAxis.setTickMarkPaint(fgColor);
    domainAxis.setAxisLinePaint(fgColor);

    rangeAxis.setTickLabelPaint(fgColor);
    rangeAxis.setTickMarkPaint(fgColor);
    rangeAxis.setAxisLinePaint(fgColor);

    return chart;
}
 

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();
}
 

/**
 * Creates a sample chart.
 * 
 * @param dataset  the dataset.
 * 
 * @return The chart.
 */
private static JFreeChart createChart(CategoryDataset dataset) {
    
    // create the chart...
    JFreeChart chart = ChartFactory.createBarChart(
        "Bar Chart Demo",         // chart title
        "Category",               // domain axis label
        "Value",                  // range axis label
        dataset,                  // data
        PlotOrientation.VERTICAL, // orientation
        true,                     // include legend
        true,                     // tooltips?
        false                     // URLs?
    );

    // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...

    // set the background color for the chart...
    chart.setBackgroundPaint(Color.white);

    // get a reference to the plot for further customisation...
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setDomainGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.white);

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

    // disable bar outlines...
    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    renderer.setDrawBarOutline(false);

    CategoryAxis domainAxis = plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(
        CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0)
    );
    // OPTIONAL CUSTOMISATION COMPLETED.
    
    return chart;
    
}
 

public void resetDomainAxis(final IScope scope) {
	// TODO Auto-generated method stub
	final CategoryPlot pp = (CategoryPlot) chart.getPlot();
	if (this.useSubAxis) {
		final SubCategoryAxis newAxis = new SubCategoryAxis(pp.getDomainAxis().getLabel());
		pp.setDomainAxis(newAxis);
	}

	pp.getDomainAxis().setAxisLinePaint(axesColor);
	pp.getDomainAxis().setTickLabelFont(getTickFont());
	pp.getDomainAxis().setLabelFont(getLabelFont());
	if (textColor != null) {
		pp.getDomainAxis().setLabelPaint(textColor);
		pp.getDomainAxis().setTickLabelPaint(textColor);
		if (this.series_label_position.equals("xaxis")) {
			((SubCategoryAxis)pp.getDomainAxis()).setSubLabelPaint(textColor);
		}			
	}

	if (gap > 0) {

		pp.getDomainAxis().setCategoryMargin(gap);
		pp.getDomainAxis().setUpperMargin(gap);
		pp.getDomainAxis().setLowerMargin(gap);
	}

	if (this.useSubAxis && !this.useMainAxisLabel) {
		pp.getDomainAxis().setTickLabelsVisible(false);
		// pp.getDomainAxis().setTickLabelPaint(this.backgroundColor);
		// pp.getDomainAxis().setLabelFont(new Font(labelFontFace,
		// labelFontStyle, 1));
	}
	if (!this.getYTickLineVisible(scope)) {
		pp.setDomainGridlinesVisible(false);
	}

	if (!this.getYTickLineVisible(scope)) {
		pp.setRangeCrosshairVisible(false);

	}

	if (!this.getYTickValueVisible(scope)) {
		pp.getRangeAxis().setTickMarksVisible(false);
		pp.getRangeAxis().setTickLabelsVisible(false);

	}
	if (!this.getXTickValueVisible(scope)) {
		pp.getDomainAxis().setTickMarksVisible(false);
		pp.getDomainAxis().setTickLabelsVisible(false);

	}

}
 

@Override
public void initChart_post_data_init(final IScope scope) {
	// TODO Auto-generated method stub
	super.initChart_post_data_init(scope);
	final CategoryPlot pp = (CategoryPlot) chart.getPlot();

	final String sty = getStyle();
	this.useSubAxis = false;
	switch (sty) {
		case IKeyword.STACK: {
			if (this.series_label_position.equals("xaxis")) {
				this.series_label_position = "default";
			}
			if (this.series_label_position.equals("default")) {
				this.series_label_position = "legend";
			}
			break;
		}
		default: {
			if (this.series_label_position.equals("default")) {
				if (this.getChartdataset().getSources().size() > 0) {
					final ChartDataSource onesource = this.getChartdataset().getSources().get(0);
					if (onesource.isCumulative) {
						this.series_label_position = "legend";
					} else {
						this.series_label_position = "xaxis";
						useMainAxisLabel = false;
					}

				} else {
					this.series_label_position = "legend";

				}
			}
			break;
		}
	}
	if (this.series_label_position.equals("xaxis")) {
		this.useSubAxis = true;
	}

	if (!this.series_label_position.equals("legend")) {
		chart.getLegend().setVisible(false);
		// legend is useless, but I find it nice anyway... Could put back...
	}
	this.resetDomainAxis(scope);

	pp.setDomainGridlinePaint(axesColor);
	pp.setRangeGridlinePaint(axesColor);
	if (!this.getXTickLineVisible(scope)) {
		pp.setDomainGridlinesVisible(false);
	}
	if (!this.getYTickLineVisible(scope)) {
		pp.setRangeGridlinesVisible(false);
	}
	pp.setRangeCrosshairVisible(true);
	pp.getRangeAxis().setAxisLinePaint(axesColor);
	pp.getRangeAxis().setLabelFont(getLabelFont());
	pp.getRangeAxis().setTickLabelFont(getTickFont());
	if (textColor != null) {
		pp.getRangeAxis().setLabelPaint(textColor);
		pp.getRangeAxis().setTickLabelPaint(textColor);
	}
	if (ytickunit > 0) {
		((NumberAxis) pp.getRangeAxis()).setTickUnit(new NumberTickUnit(ytickunit));
	}

	if (ylabel != null && !ylabel.isEmpty()) {
		pp.getRangeAxis().setLabel(ylabel);
	}
	if (this.series_label_position.equals("yaxis")) {
		pp.getRangeAxis().setLabel(this.getChartdataset().getDataSeriesIds(scope).iterator().next());
		chart.getLegend().setVisible(false);
	}

	if (xlabel != null && !xlabel.isEmpty()) {
		pp.getDomainAxis().setLabel(xlabel);
	}
	if (textColor != null) {
		pp.getDomainAxis().setLabelPaint(textColor);
		pp.getDomainAxis().setTickLabelPaint(textColor);
		if (this.series_label_position.equals("xaxis")) {
			((SubCategoryAxis)pp.getDomainAxis()).setSubLabelPaint(textColor);
		}			
	}
}