Java PiePlot.setDirection方法代碼示例

import org.jfree.chart.plot.PiePlot; //導入方法依賴的package包/類
/**
 * Creates the PieChart page.
 */
void createPieChartPage() {
	result = new DefaultPieDataset();  

	 JFreeChart chart = ChartFactory.createPieChart("Design Decisions", result, true, true, false);  
	 PiePlot plot = (PiePlot) chart.getPlot();  
	  plot.setStartAngle(290);  
	  plot.setDirection(Rotation.CLOCKWISE);  
	  plot.setForegroundAlpha(0.5f);
	 
	Composite composite = new Composite(getContainer(), SWT.NONE);
	FillLayout layout = new FillLayout();
	composite.setLayout(layout);
	new ChartComposite(composite, SWT.NONE, chart, true);
	int index = addPage(composite);
	setPageText(index, "Graph");

	
}
 

import org.jfree.chart.plot.PiePlot; //導入方法依賴的package包/類
/**
 * Sets the new results for display.
 *
 * @param prediction Float array corresponding to the classifier prediction.
 * @param classifierName String that is the classifier name.
 * @param classColors Color array representing the class color.
 * @param classNames String array representing the class names.
 */
public void setResults(float[] prediction, String classifierName,
        Color[] classColors, String[] classNames) {
    int numClasses = classNames.length;
    DefaultPieDataset pieData = new DefaultPieDataset();
    for (int cIndex = 0; cIndex < numClasses; cIndex++) {
        pieData.setValue(classNames[cIndex], prediction[cIndex]);
    }
    JFreeChart chart = ChartFactory.createPieChart3D(classifierName
            + " prediction", pieData, true, true, false);
    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setDirection(Rotation.CLOCKWISE);
    plot.setForegroundAlpha(0.5f);
    PieRenderer prend = new PieRenderer(classColors);
    prend.setColor(plot, pieData);
    ChartPanel chartPanel = new ChartPanel(chart);
    chartPanel.setPreferredSize(new Dimension(140, 140));
    resultChartPanel.removeAll();
    resultChartPanel.add(chartPanel);
    resultChartPanel.revalidate();
    resultChartPanel.repaint();
}
 

import org.jfree.chart.plot.PiePlot; //導入方法依賴的package包/類
@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));
}
}
 

import org.jfree.chart.plot.PiePlot; //導入方法依賴的package包/類
public static JFreeChart createPieChart(DefaultPieDataset dataset, String title, boolean is3D) {
        JFreeChart chart = null;
        if (is3D) {
            chart = ChartFactory.createPieChart3D(title, // 圖表標題
                    dataset, // 數據集
                    true, // 是否顯示圖例
                    true, // 是否顯示工具提示
                    true // 是否生成URL
            );
        } else {
            chart = ChartFactory.createPieChart(title, // 圖表標題
                    dataset, // 數據集
                    true, // 是否顯示圖例
                    true, // 是否顯示工具提示
                    true // 是否生成URL
            );
        }
// 設置標題字體==為了防止中文亂碼：必須設置字體
        chart.setTitle(new TextTitle(title, new Font("黑體", Font.ITALIC, 22)));
// 設置圖例的字體==為了防止中文亂碼：必須設置字體
        chart.getLegend().setItemFont(new Font("黑體", Font.BOLD, 12));
// 獲取餅圖的Plot對象(實際圖表)
        PiePlot plot = (PiePlot) chart.getPlot();
// 圖形邊框顏色
        plot.setBaseSectionOutlinePaint(Color.GRAY);
// 圖形邊框粗細
        plot.setBaseSectionOutlineStroke(new BasicStroke(0.0f));
// 設置餅狀圖的繪製方向，可以按順時針方向繪製，也可以按逆時針方向繪製
        plot.setDirection(Rotation.ANTICLOCKWISE);
// 設置繪製角度(圖形旋轉角度)
        plot.setStartAngle(70);
// 設置突出顯示的數據塊
// plot.setExplodePercent("One", 0.1D);
// 設置背景色透明度
        plot.setBackgroundAlpha(0.7F);
// 設置前景色透明度
        plot.setForegroundAlpha(0.65F);
// 設置區塊標簽的字體==為了防止中文亂碼：必須設置字體
        plot.setLabelFont(new Font("宋體", Font.PLAIN, 12));
// 扇區分離顯示,對3D圖不起效
        if (is3D)
            plot.setExplodePercent(dataset.getKey(3), 0.1D);
// 圖例顯示百分比:自定義方式，{0} 表示選項， {1} 表示數值， {2} 表示所占比例 ,小數點後兩位
        plot.setLabelGenerator(new StandardPieSectionLabelGenerator(
                "{0}:{1}\r\n({2})", NumberFormat.getNumberInstance(),
                new DecimalFormat("0.00%")));
// 圖例顯示百分比
// plot.setLegendLabelGenerator(new
// StandardPieSectionLabelGenerator("{0}={1}({2})"));
// 指定顯示的餅圖為：圓形(true) 還是橢圓形(false)
        plot.setCircular(true);
// 沒有數據的時候顯示的內容
        plot.setNoDataMessage("找不到可用數據...");
// 設置鼠標懸停提示
        plot.setToolTipGenerator(new StandardPieToolTipGenerator());
// 設置熱點鏈接
// plot.setURLGenerator(new StandardPieURLGenerator("detail.jsp"));

        return chart;
    }
 

import org.jfree.chart.plot.PiePlot; //導入方法依賴的package包/類
/**
 * Sets the data to be shown.
 *
 * @param occurrenceProfile Double array that is the neighbor occurrence
 * profile of this visual word.
 * @param codebookIndex Integer that is the index of this visual word.
 * @param classColors Color[] of class colors.
 * @param classNames String[] of class names.
 */
public void setResults(double[] occurrenceProfile, int codebookIndex,
        Color[] classColors, String[] classNames) {
    int numClasses = Math.min(classNames.length, occurrenceProfile.length);
    this.codebookIndex = codebookIndex;
    this.occurrenceProfile = occurrenceProfile;
    DefaultPieDataset pieData = new DefaultPieDataset();
    for (int cIndex = 0; cIndex < numClasses; cIndex++) {
        pieData.setValue(classNames[cIndex], occurrenceProfile[cIndex]);
    }
    JFreeChart chart = ChartFactory.createPieChart3D("codebook vect "
            + codebookIndex, pieData, true, true, false);
    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setDirection(Rotation.CLOCKWISE);
    plot.setForegroundAlpha(0.5f);
    PieRenderer prend = new PieRenderer(classColors);
    prend.setColor(plot, pieData);
    ChartPanel chartPanel = new ChartPanel(chart);
    chartPanel.setPreferredSize(new Dimension(140, 140));
    chartPanel.setVisible(true);
    chartPanel.revalidate();
    chartPanel.repaint();
    JPanel jp = new JPanel();
    jp.setPreferredSize(new Dimension(140, 140));
    jp.setMinimumSize(new Dimension(140, 140));
    jp.setMaximumSize(new Dimension(140, 140));
    jp.setSize(new Dimension(140, 140));
    jp.setLayout(new FlowLayout());
    jp.add(chartPanel);
    jp.setVisible(true);
    jp.validate();
    jp.repaint();

    JFrame frame = new JFrame();
    frame.setBackground(Color.WHITE);
    frame.setUndecorated(true);
    frame.getContentPane().add(jp);
    frame.pack();
    BufferedImage bi = new BufferedImage(jp.getWidth(), jp.getHeight(),
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D graphics = bi.createGraphics();
    jp.print(graphics);
    graphics.dispose();
    frame.dispose();
    imPanel.removeAll();
    imPanel.setImage(bi);
    imPanel.setVisible(true);
    imPanel.revalidate();
    imPanel.repaint();
}
 

import org.jfree.chart.plot.PiePlot; //導入方法依賴的package包/類
/**
 * Creates a Pie Chart based on map.
 *
 * @return the Pie Chart generated.
 */
public JFreeChart getPieChart(Map<String, Double> pieValues) {
    DefaultPieDataset dataset = new DefaultPieDataset();

    for (String key : pieValues.keySet()) {
        dataset.setValue(key, pieValues.get(key));
    }

    JFreeChart chart = ChartFactory.createPieChart3D(
            null,  // chart title
            dataset, // data
            true,    // include legend
            true,
            false
    );

    chart.setBackgroundPaint(Color.white);
    chart.setBorderVisible(false);
    chart.setBorderPaint(null);


    PiePlot plot = (PiePlot)chart.getPlot();
    plot.setSectionOutlinesVisible(false);
    plot.setLabelFont(new Font("SansSerif", Font.BOLD, 12));
    plot.setNoDataMessage("No data available");
    plot.setCircular(true);
    plot.setLabelGap(0.02);
    plot.setOutlinePaint(null);
    plot.setLabelLinksVisible(false);

    plot.setLabelGenerator(null);

    plot.setLegendLabelGenerator(new StandardPieSectionLabelGenerator("{0}"));


    plot.setStartAngle(270);
    plot.setDirection(Rotation.ANTICLOCKWISE);
    plot.setForegroundAlpha(0.60f);
    plot.setInteriorGap(0.33);

    return chart;
}