org.jfree.data.general.PieDataset Java Examples

/**
 * Generates a URL.
 *
 * @param dataset  the dataset (ignored).
 * @param key  the item key ({@code null} not permitted).
 * @param pieIndex  the pie index.
 *
 * @return A string containing the generated URL.
 */
@Override
public String generateURL(PieDataset dataset, Comparable key,
        int pieIndex) {
    String url = this.prefix;
    try {
        if (url.contains("?")) {
            url += "&" + this.categoryParamName + "="
                    + URLEncoder.encode(key.toString(), "UTF-8");
        } else {
            url += "?" + this.categoryParamName + "="
                    + URLEncoder.encode(key.toString(), "UTF-8");
        }
        if (this.indexParamName != null) {
            url += "&" + this.indexParamName + "=" + pieIndex;
        }
    } catch (UnsupportedEncodingException e) {  // this won't happen :)
        throw new RuntimeException(e);
    }
    return url;
}
 

/**
 * Creates the array of items that can be passed to the
 * {@link MessageFormat} class for creating labels.  The returned array
 * contains four values:
 * <ul>
 * <li>result[0] = the section key converted to a <code>String</code>;</li>
 * <li>result[1] = the formatted data value;</li>
 * <li>result[2] = the formatted percentage (of the total);</li>
 * <li>result[3] = the formatted total value.</li>
 * </ul>
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param key  the key (<code>null</code> not permitted).
 *
 * @return The items (never <code>null</code>).
 */
protected Object[] createItemArray(PieDataset dataset, Comparable key) {
    Object[] result = new Object[4];
    double total = DatasetUtilities.calculatePieDatasetTotal(dataset);
    result[0] = key.toString();
    Number value = dataset.getValue(key);
    if (value != null) {
        result[1] = this.numberFormat.format(value);
    }
    else {
        result[1] = "null";
    }
    double percent = 0.0;
    if (value != null) {
        double v = value.doubleValue();
        if (v > 0.0) {
            percent = v / total;
        }
    }
    result[2] = this.percentFormat.format(percent);
    result[3] = this.numberFormat.format(total);
    return result;
}
 

/**
 * Creates a pie chart with default settings.
 * <P>
 * The chart object returned by this method uses a {@link PiePlot} instance
 * as the plot.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A pie chart.
 */
public static JFreeChart createPieChart(String title, PieDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    PiePlot plot = new PiePlot(dataset);
    plot.setLabelGenerator(new StandardPieSectionLabelGenerator());
    plot.setInsets(new RectangleInsets(0.0, 5.0, 5.0, 5.0));
    if (tooltips) {
        plot.setToolTipGenerator(new StandardPieToolTipGenerator());
    }
    if (urls) {
        plot.setURLGenerator(new StandardPieURLGenerator());
    }
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;
}
 

/**
 * Creates a chart.
 * 
 * @param dataset  the dataset.
 * 
 * @return A chart.
 */
private static JFreeChart createChart(PieDataset dataset) {
    
    JFreeChart chart = ChartFactory.createPieChart(
        "Pie Chart Demo 1",  // chart title
        dataset,             // data
        true,               // include legend
        true,
        false
    );

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setSectionOutlinesVisible(false);
    plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12));
    plot.setNoDataMessage("No data available");
    plot.setCircular(false);
    plot.setLabelGap(0.02);
    return chart;
    
}
 

/**
 * Creates a chart.
 * 
 * @param dataset  the dataset.
 * 
 * @return A chart.
 */
private static JFreeChart createChart(PieDataset dataset) {
    
    JFreeChart chart = ChartFactory.createPieChart(
        "Pie Chart Demo 1",  // chart title
        dataset,             // data
        true,               // include legend
        true,
        false
    );

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setSectionOutlinesVisible(false);
    plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12));
    plot.setNoDataMessage("No data available");
    plot.setCircular(false);
    plot.setLabelGap(0.02);
    return chart;        
}
 

/**
 * Sets the dataset and sends a {@link DatasetChangeEvent} to 'this'.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 * 
 * @see #getDataset()
 */
public void setDataset(PieDataset dataset) {
    // if there is an existing dataset, remove the plot from the list of 
    // change listeners...
    PieDataset existing = this.dataset;
    if (existing != null) {
        existing.removeChangeListener(this);
    }

    // set the new dataset, and register the chart as a change listener...
    this.dataset = dataset;
    if (dataset != null) {
        setDatasetGroup(dataset.getGroup());
        dataset.addChangeListener(this);
    }

    // send a dataset change event to self...
    DatasetChangeEvent event = new DatasetChangeEvent(this, dataset);
    datasetChanged(event);
}
 

/**
 * Creates a 3D pie chart using the specified dataset.  The chart object 
 * returned by this method uses a {@link PiePlot3D} instance as the
 * plot.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A pie chart.
 */
public static JFreeChart createPieChart3D(String title,
                                          PieDataset dataset,
                                          boolean legend,
                                          boolean tooltips,
                                          boolean urls) {

    PiePlot3D plot = new PiePlot3D(dataset);
    plot.setInsets(new RectangleInsets(0.0, 5.0, 5.0, 5.0));
    if (tooltips) {
        plot.setToolTipGenerator(new StandardPieToolTipGenerator());
    }
    if (urls) {
        plot.setURLGenerator(new StandardPieURLGenerator());
    }
    return new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, 
            legend);

}
 

/**
 * Creates a 3D pie chart using the specified dataset.  The chart object
 * returned by this method uses a {@link PiePlot3D} instance as the
 * plot.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A pie chart.
 */
public static JFreeChart createPieChart3D(String title, PieDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    PiePlot3D plot = new PiePlot3D(dataset);
    plot.setInsets(new RectangleInsets(0.0, 5.0, 5.0, 5.0));
    if (tooltips) {
        plot.setToolTipGenerator(new StandardPieToolTipGenerator());
    }
    if (urls) {
        plot.setURLGenerator(new StandardPieURLGenerator());
    }
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Creates the array of items that can be passed to the
 * {@link MessageFormat} class for creating labels.  The returned array
 * contains four values:
 * <ul>
 * <li>result[0] = the section key converted to a <code>String</code>;</li>
 * <li>result[1] = the formatted data value;</li>
 * <li>result[2] = the formatted percentage (of the total);</li>
 * <li>result[3] = the formatted total value.</li>
 * </ul>
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param key  the key (<code>null</code> not permitted).
 *
 * @return The items (never <code>null</code>).
 */
protected Object[] createItemArray(PieDataset dataset, Comparable key) {
    Object[] result = new Object[4];
    double total = DatasetUtilities.calculatePieDatasetTotal(dataset);
    result[0] = key.toString();
    Number value = dataset.getValue(key);
    if (value != null) {
        result[1] = this.numberFormat.format(value);
    }
    else {
        result[1] = "null";
    }
    double percent = 0.0;
    if (value != null) {
        double v = value.doubleValue();
        if (v > 0.0) {
            percent = v / total;
        }
    }
    result[2] = this.percentFormat.format(percent);
    result[3] = this.numberFormat.format(total);
    return result;
}
 

/**
 * Creates a ring chart with default settings.
 * <P>
 * The chart object returned by this method uses a {@link RingPlot}
 * instance as the plot.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A ring chart.
 */
public static JFreeChart createRingChart(String title, PieDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    RingPlot plot = new RingPlot(dataset);
    plot.setLabelGenerator(new StandardPieSectionLabelGenerator());
    plot.setInsets(new RectangleInsets(0.0, 5.0, 5.0, 5.0));
    if (tooltips) {
        plot.setToolTipGenerator(new StandardPieToolTipGenerator());
    }
    if (urls) {
        plot.setURLGenerator(new StandardPieURLGenerator());
    }
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Creates a ring chart with default settings.
 * <P>
 * The chart object returned by this method uses a {@link RingPlot}
 * instance as the plot.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A ring chart.
 */
public static JFreeChart createRingChart(String title, PieDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    RingPlot plot = new RingPlot(dataset);
    plot.setLabelGenerator(new StandardPieSectionLabelGenerator());
    plot.setInsets(new RectangleInsets(0.0, 5.0, 5.0, 5.0));
    if (tooltips) {
        plot.setToolTipGenerator(new StandardPieToolTipGenerator());
    }
    if (urls) {
        plot.setURLGenerator(new StandardPieURLGenerator());
    }
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Creates a 3D pie chart using the specified dataset.  The chart object
 * returned by this method uses a {@link PiePlot3D} instance as the
 * plot.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param locale  the locale (<code>null</code> not permitted).
 *
 * @return A pie chart.
 *
 * @since 1.0.7
 */
public static JFreeChart createPieChart3D(String title, PieDataset dataset,
        boolean legend, boolean tooltips, Locale locale) {

    ParamChecks.nullNotPermitted(locale, "locale");
    PiePlot3D plot = new PiePlot3D(dataset);
    plot.setInsets(new RectangleInsets(0.0, 5.0, 5.0, 5.0));
    if (tooltips) {
        plot.setToolTipGenerator(new StandardPieToolTipGenerator(locale));
    }
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Creates a 3D pie chart using the specified dataset.  The chart object
 * returned by this method uses a {@link PiePlot3D} instance as the
 * plot.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A pie chart.
 */
public static JFreeChart createPieChart3D(String title, PieDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    PiePlot3D plot = new PiePlot3D(dataset);
    plot.setInsets(new RectangleInsets(0.0, 5.0, 5.0, 5.0));
    if (tooltips) {
        plot.setToolTipGenerator(new StandardPieToolTipGenerator());
    }
    if (urls) {
        plot.setURLGenerator(new StandardPieURLGenerator());
    }
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Sets the dataset and sends a {@link DatasetChangeEvent} to 'this'.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 *
 * @see #getDataset()
 */
public void setDataset(PieDataset dataset) {
    // if there is an existing dataset, remove the plot from the list of
    // change listeners...
    PieDataset existing = this.dataset;
    if (existing != null) {
        existing.removeChangeListener(this);
    }

    // set the new dataset, and register the chart as a change listener...
    this.dataset = dataset;
    if (dataset != null) {
        setDatasetGroup(dataset.getGroup());
        dataset.addChangeListener(this);
    }

    // send a dataset change event to self...
    DatasetChangeEvent event = new DatasetChangeEvent(this, dataset);
    datasetChanged(event);
}
 

/**
 * Generates a URL.
 *
 * @param dataset  the dataset (ignored).
 * @param key  the item key ({@code null} not permitted).
 * @param pieIndex  the pie index.
 *
 * @return A string containing the generated URL.
 */
@Override
public String generateURL(PieDataset dataset, Comparable key,
        int pieIndex) {
    String url = this.prefix;
    try {
        if (url.contains("?")) {
            url += "&" + this.categoryParamName + "="
                    + URLEncoder.encode(key.toString(), "UTF-8");
        } else {
            url += "?" + this.categoryParamName + "="
                    + URLEncoder.encode(key.toString(), "UTF-8");
        }
        if (this.indexParamName != null) {
            url += "&" + this.indexParamName + "=" + pieIndex;
        }
    } catch (UnsupportedEncodingException e) {  // this won't happen :)
        throw new RuntimeException(e);
    }
    return url;
}
 

/**
 * Creates the array of items that can be passed to the
 * {@link MessageFormat} class for creating labels.  The returned array
 * contains four values:
 * <ul>
 * <li>result[0] = the section key converted to a <code>String</code>;</li>
 * <li>result[1] = the formatted data value;</li>
 * <li>result[2] = the formatted percentage (of the total);</li>
 * <li>result[3] = the formatted total value.</li>
 * </ul>
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param key  the key (<code>null</code> not permitted).
 *
 * @return The items (never <code>null</code>).
 */
protected Object[] createItemArray(PieDataset dataset, Comparable key) {
    Object[] result = new Object[4];
    double total = DatasetUtilities.calculatePieDatasetTotal(dataset);
    result[0] = key.toString();
    Number value = dataset.getValue(key);
    if (value != null) {
        result[1] = this.numberFormat.format(value);
    }
    else {
        result[1] = "null";
    }
    double percent = 0.0;
    if (value != null) {
        double v = value.doubleValue();
        if (v > 0.0) {
            percent = v / total;
        }
    }
    result[2] = this.percentFormat.format(percent);
    result[3] = this.numberFormat.format(total);
    return result;
}
 

@Override
public String generateSectionLabel(PieDataset dataset, Comparable key) {
    String result = null;
    if (dataset != null) {
        int value = dataset.getValue(key).intValue();
        if (value == 0) {
            return null;
        }

        if (enumKeyCls == null) {
            if (key instanceof Key) {
                return String.format("%s (%d)", StringUtils.trim(((Key) key).getDisplayName(), 20, true), value);
            } else {
                return String.format("%s (%d)", key.toString(), value);
            }

        } else {
            return String.format("%s (%d)", UserUIContext.getMessage(enumKeyCls, key.toString()), value);
        }
    }
    return result;
}
 

/**
 * Creates a 3D pie chart using the specified dataset.  The chart object 
 * returned by this method uses a {@link PiePlot3D} instance as the
 * plot.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A pie chart.
 */
public static JFreeChart createPieChart3D(String title,
                                          PieDataset dataset,
                                          boolean legend,
                                          boolean tooltips,
                                          boolean urls) {

    PiePlot3D plot = new PiePlot3D(dataset);
    plot.setInsets(new RectangleInsets(0.0, 5.0, 5.0, 5.0));
    if (tooltips) {
        plot.setToolTipGenerator(new StandardPieToolTipGenerator());
    }
    if (urls) {
        plot.setURLGenerator(new StandardPieURLGenerator());
    }
    return new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, 
            legend);

}
 

/**
 * Creates a chart.
 * 
 * @param dataset  the dataset.
 * 
 * @return A chart.
 */
private static JFreeChart createChart(PieDataset dataset) {
    
    JFreeChart chart = ChartFactory.createPieChart(
        "Pie Chart Demo 1",  // chart title
        dataset,             // data
        true,               // include legend
        true,
        false
    );

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setSectionOutlinesVisible(false);
    plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12));
    plot.setNoDataMessage("No data available");
    plot.setCircular(false);
    plot.setLabelGap(0.02);
    return chart;
    
}
 

/**
 * Generates a label for a pie section.
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param key  the section key (<code>null</code> not permitted).
 *
 * @return The label (possibly <code>null</code>).
 */
protected String generateSectionLabel(PieDataset dataset, Comparable key) {
    String result = null;
    if (dataset != null) {
        Object[] items = createItemArray(dataset, key);
        result = MessageFormat.format(this.labelFormat, items);
    }
    return result;
}
 

/**
 * Creates a sample dataset.
 * 
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("One", new Double(43.2));
    dataset.setValue("Two", new Double(10.0));
    dataset.setValue("Three", new Double(27.5));
    dataset.setValue("Four", new Double(17.5));
    dataset.setValue("Five", new Double(11.0));
    dataset.setValue("Six", new Double(19.4));
    return dataset;        
}
 

/**
 * Creates a sample dataset.
 * 
 * Source: http://www.bbc.co.uk/news/business-15489523
 *
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Samsung", new Double(27.8));
    dataset.setValue("Others", new Double(55.3));
    dataset.setValue("Nokia", new Double(16.8));
    dataset.setValue("Apple", new Double(17.1));
    return dataset;
}
 

/**
 * Creates a sample dataset.
 * 
 * Source: http://www.bbc.co.uk/news/business-15489523
 *
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Samsung", new Double(27.8));
    dataset.setValue("Others", new Double(55.3));
    dataset.setValue("Nokia", new Double(16.8));
    dataset.setValue("Apple", new Double(17.1));
    return dataset;
}
 

@Secured({"ROLE_ADMIN","ROLE_SURVEY_ADMIN"})
private JFreeChart createChart(PieDataset pieDataset, String title) {
try{
	JFreeChart chart = ChartFactory.createPieChart(title, pieDataset, false,true,false);

	chart.setBackgroundPaint(null);//this line necessary for transparency of background
       final ChartPanel chartPanel = new ChartPanel(chart);
       chartPanel.setOpaque(false); //this line necessary for transparency of background
       chartPanel.setBackground(new Color(0, 0, 0, 0)); //this line necessary for transparency of background
       
	PiePlot plot = (PiePlot) chart.getPlot();
	
	//Color[] colors = {new Color(170, 195, 217, 255),new Color(246, 140, 31, 255),new Color(204, 204, 204, 255),new Color(231, 238, 144, 255),new Color(51, 51, 51, 255),new Color(101, 125, 151, 255),new Color(0, 102, 255, 255)}; 
	//PieRenderer renderer = new PieRenderer(colors); 
	//renderer.setColor(plot, pieDataset);
	
	
	PieSectionLabelGenerator generator = new StandardPieSectionLabelGenerator("{0}:{1}%"); 
	plot.setLabelGenerator(generator);
	
	plot.setStartAngle(270);
	plot.setDirection(Rotation.CLOCKWISE);
	
	return chart;
} catch (Exception e) {
	log.error(e.getMessage(),e);
	throw (new RuntimeException(e));
}
}
 

private PieDataset getPieDataSet() {
	DefaultPieDataset dataset = new DefaultPieDataset();
	for (Entry<Object, Double> data : groupOrdersBy().entrySet()) {
		dataset.setValue(String.valueOf(data.getKey()), data.getValue());
	}

	return dataset;
}
 

@Override 
public void start(Stage stage) throws Exception {
    PieDataset dataset = createDataset();
    JFreeChart chart = createChart(dataset); 
    ChartViewer viewer = new ChartViewer(chart);  
    stage.setScene(new Scene(viewer)); 
    stage.setTitle("JFreeChart: PieChartFXDemo1.java"); 
    stage.setWidth(700);
    stage.setHeight(390);
    stage.show(); 
}
 

private PieDataset createPieDataset() {
  final DefaultPieDataset dataset = new DefaultPieDataset();
  dataset.setValue( "Part 1", 23 );// NON-NLS
  dataset.setValue( "Part 2", 35 );// NON-NLS
  dataset.setValue( "Part 3", 42 );// NON-NLS
  return dataset;
}
 

/**
 * Generates a label for a pie section.
 * 
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param key  the section key (<code>null</code> not permitted).
 * 
 * @return The label (possibly <code>null</code>).
 */
protected String generateSectionLabel(PieDataset dataset, Comparable key) {
    String result = null;    
    if (dataset != null) {
        Object[] items = createItemArray(dataset, key);
        result = MessageFormat.format(this.labelFormat, items);
    }
    return result;
}
 

public void setColor(PiePlot plot, PieDataset dataset) 
{ 
    List <Comparable> keys = dataset.getKeys(); 
    int aInt; 

    for (int i = 0; i < keys.size(); i++) 
    { 
        aInt = i % this.color.length; 
        plot.setSectionPaint(keys.get(i), this.color[aInt]); 
    } 
}
 

/**
 * Generates a label for a pie section.
 *
 * @param dataset  the dataset (<code>null</code> not permitted).
 * @param key  the section key (<code>null</code> not permitted).
 *
 * @return The label (possibly <code>null</code>).
 */
protected String generateSectionLabel(PieDataset dataset, Comparable key) {
    String result = null;
    if (dataset != null) {
        Object[] items = createItemArray(dataset, key);
        result = MessageFormat.format(this.labelFormat, items);
    }
    return result;
}