JFreeChart画雷达图、带刻度雷达图、蜘蛛网、带刻度蜘蛛网
画雷达图
- /**
- * @作者:Jcuckoo
- * @日期:2008-12-9
- * @版本:V 1.0
- */
- public class MySpriderWebPlotTest {
- public static void main(String args[]) {
- JFrame jf = new JFrame();
- jf.add(erstelleSpinnenDiagramm());
- jf.pack();
- jf.setVisible(true);
- }
- public static JPanel erstelleSpinnenDiagramm() {
- DefaultCategoryDataset dataset = new DefaultCategoryDataset();
- String group1 = "apple ";
- dataset.addValue(5, group1, "w1");
- dataset.addValue(6, group1, "w2");
- dataset.addValue(4, group1, "w3");
- dataset.addValue(2, group1, "w4");
- dataset.addValue(5, group1, "w5");
- dataset.addValue(5, group1, "w6");
- dataset.addValue(5, group1, "w7");
- dataset.addValue(8, group1, "w8");
- SpiderWebPlot spiderwebplot = new SpiderWebPlot(dataset);
- JFreeChart jfreechart = new JFreeChart("Test", TextTitle.DEFAULT_FONT,spiderwebplot, false);
- LegendTitle legendtitle = new LegendTitle(spiderwebplot);
- legendtitle.setPosition(RectangleEdge.BOTTOM);
- jfreechart.addSubtitle(legendtitle);
- ChartPanel chartpanel = new ChartPanel(jfreechart);
- return chartpanel;
- }
- }
蜘蛛网
- public class MySpriderWebPlotTest {
- public static void main(String args[]) {
- JFrame jf = new JFrame();
- jf.add(erstelleSpinnenDiagramm());
- jf.pack();
- jf.setVisible(true);
- }
- public static JPanel erstelleSpinnenDiagramm() {
- DefaultCategoryDataset dataset = new DefaultCategoryDataset();
- String group1 = "apple ";
- dataset.addValue(5, group1, "w1");
- dataset.addValue(6, group1, "w2");
- dataset.addValue(4, group1, "w3");
- dataset.addValue(2, group1, "w4");
- dataset.addValue(5, group1, "w5");
- dataset.addValue(5, group1, "w6");
- dataset.addValue(5, group1, "w7");
- dataset.addValue(8, group1, "w8");
- String group2 = "orange ";
- dataset.addValue(3, group2, "w1");
- dataset.addValue(3, group2, "w2");
- dataset.addValue(4, group2, "w3");
- dataset.addValue(7, group2, "w4");
- dataset.addValue(4, group2, "w5");
- dataset.addValue(5, group2, "w6");
- dataset.addValue(3, group2, "w7");
- dataset.addValue(3, group2, "w8");
- String group3 = "banana ";
- dataset.addValue(4, group3, "w1");
- dataset.addValue(5, group3, "w2");
- dataset.addValue(2, group3, "w3");
- dataset.addValue(5, group3, "w4");
- dataset.addValue(6, group3, "w5");
- dataset.addValue(6, group3, "w6");
- dataset.addValue(4, group3, "w7");
- dataset.addValue(4, group3, "w8");
- SpiderWebPlot spiderwebplot = new SpiderWebPlot(dataset);
- JFreeChart jfreechart = new JFreeChart("Test", TextTitle.DEFAULT_FONT,spiderwebplot, false);
- LegendTitle legendtitle = new LegendTitle(spiderwebplot);
- legendtitle.setPosition(RectangleEdge.BOTTOM);
- jfreechart.addSubtitle(legendtitle);
- ChartPanel chartpanel = new ChartPanel(jfreechart);
- return chartpanel;
- }
- }
带刻度问题比较复杂,JFreeChart本身没有提供其功能,需要继承SpiderWebPlot,覆盖drawLabel方法。
此处代码参考Jerry代码,友情感谢。
MySpriderWebPlotTest出自“王杰瑞的技术博客” 博客,请务必保留此出处http://wangjierui.blog.51cto.com/186879/116845
- /**
- * @本文出自 “王杰瑞的技术博客” 博客,请务必保留此出处 http://wangjierui.blog.51cto.com/186879/116845
- */
- public class MySpiderWebPlot extends SpiderWebPlot {
- private int ticks = DEFAULT_TICKS;
- private static final int DEFAULT_TICKS = 5;
- private NumberFormat format = NumberFormat.getInstance();
- private static final double PERPENDICULAR = 90;
- private static final double TICK_SCALE = 0.015;
- private int valueLabelGap = DEFAULT_GAP;
- private static final int DEFAULT_GAP = 10;
- private static final double THRESHOLD = 15;
- MySpiderWebPlot(CategoryDataset createCategoryDataset) {
- super(createCategoryDataset);
- }
- @Override
- protected void drawLabel(final Graphics2D g2, final Rectangle2D plotArea, final double value,
- final int cat, final double startAngle, final double extent) {
- super.drawLabel(g2, plotArea, value, cat, startAngle, extent);
- final FontRenderContext frc = g2.getFontRenderContext();
- final double[] transformed = new double[2];
- final double[] transformer = new double[2];
- final Arc2D arc1 = new Arc2D.Double(plotArea, startAngle, 0, Arc2D.OPEN);
- for (int i = 1; i <= ticks; i++) {
- final Point2D point1 = arc1.getEndPoint();
- final double deltaX = plotArea.getCenterX();
- final double deltaY = plotArea.getCenterY();
- double labelX = point1.getX() - deltaX;
- double labelY = point1.getY() - deltaY;
- final double scale = ((double) i / (double) ticks);
- final AffineTransform tx = AffineTransform.getScaleInstance(scale, scale);
- final AffineTransform pointTrans = AffineTransform.getScaleInstance(scale + TICK_SCALE, scale + TICK_SCALE);
- transformer[0] = labelX;
- transformer[1] = labelY;
- pointTrans.transform(transformer, 0, transformed, 0, 1);
- final double pointX = transformed[0] + deltaX;
- final double pointY = transformed[1] + deltaY;
- tx.transform(transformer, 0, transformed, 0, 1);
- labelX = transformed[0] + deltaX;
- labelY = transformed[1] + deltaY;
- double rotated = (PERPENDICULAR);
- AffineTransform rotateTrans = AffineTransform.getRotateInstance(Math.toRadians(rotated), labelX, labelY);
- transformer[0] = pointX;
- transformer[1] = pointY;
- rotateTrans.transform(transformer, 0, transformed, 0, 1);
- final double x1 = transformed[0];
- final double y1 = transformed[1];
- rotated = (-PERPENDICULAR);
- rotateTrans = AffineTransform.getRotateInstance(Math.toRadians(rotated), labelX, labelY);
- rotateTrans.transform(transformer, 0, transformed, 0, 1);
- final Composite saveComposite = g2.getComposite();
- g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f));
- g2.draw(new Line2D.Double(transformed[0], transformed[1], x1, y1));
- if (startAngle == this.getStartAngle()) {
- final String label = format.format(((double) i / (double) ticks) * this.getMaxValue());
- final Rectangle2D labelBounds = getLabelFont().getStringBounds(label, frc);
- final LineMetrics lm = getLabelFont().getLineMetrics(label, frc);
- final double ascent = lm.getAscent();
- if (Math.abs(labelX - plotArea.getCenterX()) < THRESHOLD) {
- labelX += valueLabelGap;
- labelY += ascent / (float) 2;
- } else if (Math.abs(labelY - plotArea.getCenterY()) < THRESHOLD) {
- labelY += valueLabelGap;
- } else if (labelX >= plotArea.getCenterX()) {
- if (labelY < plotArea.getCenterY()) {
- labelX += valueLabelGap;
- labelY += valueLabelGap;
- } else {
- labelX -= valueLabelGap;
- labelY += valueLabelGap;
- }
- } else {
- if (labelY > plotArea.getCenterY()) {
- labelX -= valueLabelGap;
- labelY -= valueLabelGap;
- } else {
- labelX += valueLabelGap;
- labelY -= valueLabelGap;
- }
- }
- g2.setPaint(getLabelPaint());
- g2.setFont(getLabelFont());
- g2.drawString(label, (float) labelX, (float) labelY);
- }
- g2.setComposite(saveComposite);
- }
- }
- }
带刻度雷达图
- /**
- * @作者:Jcuckoo
- * @日期:2008-12-9
- * @版本:V 1.0
- */
- public class MySpriderWebPlotTest {
- public static void main(String args[]) {
- JFrame jf = new JFrame();
- jf.add(erstelleSpinnenDiagramm());
- jf.pack();
- jf.setVisible(true);
- }
- public static JPanel erstelleSpinnenDiagramm() {
- DefaultCategoryDataset dataset = new DefaultCategoryDataset();
- String group1 = "apple ";
- dataset.addValue(5, group1, "w1");
- dataset.addValue(6, group1, "w2");
- dataset.addValue(4, group1, "w3");
- dataset.addValue(2, group1, "w4");
- dataset.addValue(5, group1, "w5");
- dataset.addValue(5, group1, "w6");
- dataset.addValue(5, group1, "w7");
- dataset.addValue(8, group1, "w8");
- MySpiderWebPlot spiderwebplot = new MySpiderWebPlot(dataset);
- JFreeChart jfreechart = new JFreeChart("Test", TextTitle.DEFAULT_FONT,spiderwebplot, false);
- LegendTitle legendtitle = new LegendTitle(spiderwebplot);
- legendtitle.setPosition(RectangleEdge.BOTTOM);
- jfreechart.addSubtitle(legendtitle);
- ChartPanel chartpanel = new ChartPanel(jfreechart);
- return chartpanel;
- }
- }
带刻度蜘蛛网
- /**
- * @作者:Jcuckoo
- * @日期:2008-12-9
- * @版本:V 1.0
- */
- public class MySpriderWebPlotTest {
- public static void main(String args[]) {
- JFrame jf = new JFrame();
- jf.add(erstelleSpinnenDiagramm());
- jf.pack();
- jf.setVisible(true);
- }
- public static JPanel erstelleSpinnenDiagramm() {
- DefaultCategoryDataset dataset = new DefaultCategoryDataset();
- String group1 = "apple ";
- dataset.addValue(5, group1, "w1");
- dataset.addValue(6, group1, "w2");
- dataset.addValue(4, group1, "w3");
- dataset.addValue(2, group1, "w4");
- dataset.addValue(5, group1, "w5");
- dataset.addValue(5, group1, "w6");
- dataset.addValue(5, group1, "w7");
- dataset.addValue(8, group1, "w8");
- String group2 = "orange ";
- dataset.addValue(3, group2, "w1");
- dataset.addValue(3, group2, "w2");
- dataset.addValue(4, group2, "w3");
- dataset.addValue(7, group2, "w4");
- dataset.addValue(4, group2, "w5");
- dataset.addValue(5, group2, "w6");
- dataset.addValue(3, group2, "w7");
- dataset.addValue(3, group2, "w8");
- String group3 = "banana ";
- dataset.addValue(4, group3, "w1");
- dataset.addValue(5, group3, "w2");
- dataset.addValue(2, group3, "w3");
- dataset.addValue(5, group3, "w4");
- dataset.addValue(6, group3, "w5");
- dataset.addValue(6, group3, "w6");
- dataset.addValue(4, group3, "w7");
- dataset.addValue(4, group3, "w8");
- MySpiderWebPlot spiderwebplot = new MySpiderWebPlot(dataset);
- JFreeChart jfreechart = new JFreeChart("Test", TextTitle.DEFAULT_FONT,spiderwebplot, false);
- LegendTitle legendtitle = new LegendTitle(spiderwebplot);
- legendtitle.setPosition(RectangleEdge.BOTTOM);
- jfreechart.addSubtitle(legendtitle);
- ChartPanel chartpanel = new ChartPanel(jfreechart);
- return chartpanel;
- }
- }
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