JFreeChar问题

chen_bq 2014-07-14 05:51:04

上面中红色处，数值显示不了了，想把图片边距设置大点的

试了很多办法，没解决，



	JFreeChart chart = ChartFactory.createBarChart("负债剩余期限结构","期限","金额（单位:亿元）",categoryDataset,PlotOrientation.HORIZONTAL,false,false,false);

			chart.setBackgroundPaint(java.awt.Color.white); 

				chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);

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

			

			setCategoryPlot(plot);

 

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

			

		

			plot.setBackgroundPaint(java.awt.Color.white);

			plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);

			Font fontTitle = new Font("SansSerif", Font.BOLD, 18);

			chart.getTitle().setFont(fontTitle);



			BarRenderer barrenderer =(BarRenderer)plot.getRenderer();

			barrenderer.setBaseLegendTextFont(new Font("SansSerif", Font.PLAIN, 12));  

			Paint pain = Color.decode("#94C600");

			barrenderer.setSeriesPaint(0, pain); 

			// 设置柱子宽度

			barrenderer.setMaximumBarWidth(0.04);

			// 设置柱子高度

			barrenderer.setMinimumBarLength(0.8);

			barrenderer.setIncludeBaseInRange(true);

			barrenderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());

			barrenderer.setBaseItemLabelsVisible(true);

			//barrenderer.setItemLabelAnchorOffset(-300D);

			barrenderer.setShadowVisible(false);

			

			

			//去掉默认的渐变效果

			barrenderer.setBarPainter( new StandardBarPainter() ); 

			barrenderer.setItemMargin(-0.01);

			String filename = ServletUtilities.saveChartAsPNG(chart, 550,340,null, getServletRequest().getSession());