public JFreeChart createChart(int size) {
CategoryDataset paramCategoryDataset = createDataset(size);
// 创建主题样式
StandardChartTheme standardChartTheme = new StandardChartTheme("CN");
// 设置标题字体
standardChartTheme.setExtraLargeFont(new Font("隶书", Font.BOLD, 20));
// 设置图例的字体
standardChartTheme.setRegularFont(new Font("宋书", Font.PLAIN, 12));
// 设置轴向的字体
standardChartTheme.setLargeFont(new Font("宋书", Font.PLAIN, 12));
// 应用主题样式
ChartFactory.setChartTheme(standardChartTheme);
JFreeChart localJFreeChart =
ChartFactory.createLineChart(
title, "期号", yTitle, paramCategoryDataset, PlotOrientation.VERTICAL, true, true, false);
CategoryPlot localCategoryPlot = (CategoryPlot) localJFreeChart.getPlot();
// SymbolAxis localSymbolAxis = new SymbolAxis("个数", new String[] {
// "0", "1", "2", "3", "4", "5", "6" });
// localCategoryPlot.setRangeAxis(localSymbolAxis);
ChartUtilities.applyCurrentTheme(localJFreeChart);
LineAndShapeRenderer xyitem = (LineAndShapeRenderer) localCategoryPlot.getRenderer();
CategoryPlot plot = (CategoryPlot) localJFreeChart.getPlot();
// 设置网格背景颜色
plot.setBackgroundPaint(Color.white);
// 设置网格竖线颜色
plot.setDomainGridlinePaint(Color.black);
// 设置网格横线颜色
plot.setRangeGridlinePaint(Color.black);
// 设置曲线图与xy轴的距离
plot.setAxisOffset(new RectangleInsets(0D, 0D, 0D, 0D));
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setAutoRangeIncludesZero(true);
if ("和值".equals(type)) {
rangeAxis.setLowerBound(70);
rangeAxis.setTickUnit(new NumberTickUnit(10));
} else {
rangeAxis.setLowerBound(0);
rangeAxis.setTickUnit(new NumberTickUnit(1));
}
// rangeAxis.setUpperMargin(0.20);
// 设置曲线显示各数据点的值
xyitem.setBaseItemLabelsVisible(true);
xyitem.setBasePositiveItemLabelPosition(
new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_LEFT));
xyitem.setSeriesStroke(0, new BasicStroke(1.5F));
xyitem.setBaseItemLabelFont(new Font("Dialog", 1, 14));
xyitem.setSeriesShapesVisible(0, true);
plot.setRenderer(xyitem);
return localJFreeChart;
}
protected void setDefaultCategoryItemRenderer() {
// 获得renderer 注意这里是下嗍造型到lineandshaperenderer！！
lineandshaperenderer = (LineAndShapeRenderer) categoryPlot.getRenderer();
// 天蓝
lineandshaperenderer.setSeriesPaint(0, new Color(41, 106, 232));
// lineandshaperenderer.setSeriesPaint(1, new Color(255,0,255));//桃红2
// lineandshaperenderer.setSeriesPaint(2, new Color(255,255,128));//黄色3
// lineandshaperenderer.setSeriesPaint(3, new Color(0,255,255));//蓝4
// lineandshaperenderer.setSeriesPaint(4, new Color(128,0,128));//紫5
// lineandshaperenderer.setSeriesPaint(5, new Color(0,0,255));//墨绿6
// lineandshaperenderer.setSeriesPaint(6, new Color(0,0,128));//蓝7
// lineandshaperenderer.setSeriesPaint(7, new Color(0,204,255));//草绿
// lineandshaperenderer.setSeriesPaint(8, new Color(192,192,192));//天蓝
// lineandshaperenderer.setSeriesPaint(9, new Color(204,255,204));//天蓝
// 点（即数据点）可见
lineandshaperenderer.setBaseShapesVisible(true);
// 显示折点数据
lineandshaperenderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
// 显示折点数据
lineandshaperenderer.setBaseItemLabelsVisible(true);
// 折点数据字体
lineandshaperenderer.setBaseItemLabelFont(FontUtil.getFont_verdana_Plain(12));
// 折点数据显示位置
ItemLabelPosition position =
new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_CENTER);
lineandshaperenderer.setBasePositiveItemLabelPosition(position);
// 点（即数据点）间有连线可见
lineandshaperenderer.setBaseLinesVisible(true);
// 定义series为”First”的（即series1）点之间的连线 ，这里是虚线，默认是直线
// lineandshaperenderer.setSeriesStroke(0, new BasicStroke(2.0F, 1, 1, 1.0F, new float[] { 10F,
// 6F }, 0.0F));
// XYLineAndShapeRenderer xylineandshaperenderer = new XYLineAndShapeRenderer();
// xylineandshaperenderer.setSeriesLinesVisible(0, false); //第一个XYSeries数据点间连线不可见
// xylineandshaperenderer.setSeriesShapesVisible(1, false); //第二个XYSeries数据点不可见
// xyplot.setRenderer(xylineandshaperenderer);
}