如何调整jfreecharts中的x和y轴线

Question

在我的jfree折线图中，x轴和y轴线是分开绘制的。我需要在orgin处同时获得轴。 下面是实际的图像IM从jfree线图表入门

如何加入在jfree线图渊源考两条线...

我已经使用这个代码示例

尝试

final DefaultCategoryDataset lineDataset = new DefaultCategoryDataset(); 
     lineDataset.addValue(10, "Dep", "2009"); 
     lineDataset.addValue(11, "Dep", "2010"); 
     lineDataset.addValue(10, "Dep", "2011"); 
     lineDataset.addValue(10, "Dep", "2012"); 

     lineDataset.addValue(7, "Dia", "2009"); 
     lineDataset.addValue(7, "Dia", "2010"); 
     lineDataset.addValue(7, "Dia", "2011"); 
     lineDataset.addValue(7, "Dia", "2012"); 

     lineDataset.addValue(3, "HD", "2009"); 
     lineDataset.addValue(3, "HD", "2010"); 
     lineDataset.addValue(3, "HD", "2011"); 
     lineDataset.addValue(3, "HD", "2012"); 

     lineDataset.addValue(16, "HBP", "2009"); 
     lineDataset.addValue(15, "HBP", "2010"); 
     lineDataset.addValue(18, "HBP", "2011"); 
     lineDataset.addValue(17, "HBP", "2012"); 

     lineDataset.addValue(16, "HC", "2009"); 
     lineDataset.addValue(15, "HC", "2010"); 
     lineDataset.addValue(16, "HC", "2011"); 
     lineDataset.addValue(16, "HC", "2012"); 

     lineDataset.addValue(6, "LBP", "2009"); 
     lineDataset.addValue(7, "LBP", "2010"); 
     lineDataset.addValue(6, "LBP", "2011"); 
     lineDataset.addValue(6, "LBP", "2012"); 

     final JFreeChart chart = ChartFactory.createLineChart(
       "", // chart title 
       "", // domain axis label 
       "", // range axis label 
       lineDataset, // data 
       PlotOrientation.VERTICAL, // orientation 
       false, // include legend 
       false, // tooltips 
       false // urls 
     ); 

     chart.setBackgroundPaint(Color.WHITE); 
     final CategoryPlot plot = (CategoryPlot) chart.getPlot(); 
     plot.setBackgroundPaint(Color.WHITE); 
     plot.setOutlineVisible(false); 
     plot.setRangeGridlinePaint(Color.white); 

     final CategoryAxis categoryAxis = plot.getDomainAxis(); 
     categoryAxis.setAxisLineVisible(true); 
     categoryAxis.setTickMarksVisible(false); 
     categoryAxis.setMaximumCategoryLabelLines(2); 
     categoryAxis.setLowerMargin(-0.1); 

     categoryAxis.setTickLabelPaint(Color.decode("#222222")); 
     chart.setPadding(new RectangleInsets(0, -8, 0, 0)); 

//  categoryAxis.setTickLabelFont(font); 
     final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); 
     rangeAxis.setVisible(true); 
//  rangeAxis.setRange(minRange, maxRange); 
//  rangeAxis.setTickUnit(new NumberTickUnit(2)); 
     rangeAxis.setTickLabelsVisible(true); 
     rangeAxis.setLowerMargin(1); 

     final LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer(); 
     renderer.setBaseShapesVisible(true); 
     renderer.setBaseShapesFilled(true); 
     renderer.setSeriesStroke(0, new BasicStroke(1.2f)); 
     renderer.setSeriesItemLabelsVisible(1, Boolean.TRUE); 
     Shape circle = new Ellipse2D.Double(-3, -3, 6, 6); 
     renderer.setSeriesShape(0, circle); 
     renderer.setSeriesShape(1, circle); 
     renderer.setSeriesShape(2, circle); 
     renderer.setSeriesShape(3, circle); 
     renderer.setSeriesShape(4, circle); 
     renderer.setSeriesShape(5, circle); 
//  renderer.setBaseItemLabelGenerator(new CustomLabelGenerator()); 
     renderer.setItemLabelAnchorOffset(-5); 
     renderer.setBaseItemLabelsVisible(true); 

     plot.getRenderer().setSeriesPaint(0, Color.decode("#4E7AD3")); 
     plot.getRenderer().setSeriesPaint(1, Color.decode("#DC3912")); 
     plot.getRenderer().setSeriesPaint(2, Color.decode("#FF9900")); 
     plot.getRenderer().setSeriesPaint(3, Color.decode("#109618")); 
     plot.getRenderer().setSeriesPaint(4, Color.decode("#990099")); 
     plot.getRenderer().setSeriesPaint(5, Color.decode("#0099C6")); 
//  renderer.setBaseItemLabelFont(font); 

//  plot.getRenderer().setSeriesPaint(1, Color.WHITE); 

     try { 
      BufferedImage bi; 

      bi = chart.createBufferedImage(300, 100); 

      ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
      ImageIO.write(bi, "png", baos); 
      byte[] byteArray = baos.toByteArray(); 
//   rangeAxis.setRangeWithMargins(min(min), max(max)); 
      String rootpath = this.getRootPath(); 
      String imagePath = rootpath + TEMP_FILE_PATH + File.separator + "HighLightGraph_" + 1 + ".png"; 
      System.out.println("=========imagePath============"+imagePath); 
      ChartUtilities.saveChartAsPNG(new File(imagePath), chart, 500, 300); 
//   this.recordImageData("highlightChart" + "-" + "1", org.apache.catalina.util.Base64.encode(byteArray)); 
     } catch (Exception e) { 

     } 

Answer 1

添加一行：

plot.setAxisOffset(new RectangleInsets(0,0,0,0));

到您的代码后

final CategoryPlot plot = (CategoryPlot) chart.getPlot();

Link to JFreeChart Java Doc