JFreeChart| JFreeChart问题集锦

最新推荐文章于 2024-11-15 11:30:49 发布

YvesHe

最新推荐文章于 2024-11-15 11:30:49 发布

阅读量539

点赞数

CC 4.0 BY-SA版权

分类专栏：【JasperReport】文章标签： jfreechart

本文链接：https://blog.youkuaiyun.com/u011479200/article/details/78633359

【JasperReport】专栏收录该内容

13 篇文章

订阅专栏

本文提供了一种使用JFreeChart创建箱形图的方法，并详细介绍了如何设置图表的主题、范围轴的刻度及范围等参数，确保图表能清晰展示数据分布情况。

http://www.java2s.com/Questions_And_Answers/JFreeChart/Chart/Area%20Chart.htm

无法颜色渐变:
http://www.jfree.org/phpBB2/viewtopic.php?f=3&t=22745&sid=123a05b88050620ef7ffb3d843164d7f

JFreeChart图表样例:
https://www.kancloud.cn/wizardforcel/jfreechart-dev-guide/111677
http://www.w3ii.com/zh-CN/jfreechart/jfreechart_database_interface.html

JFreeChart文档资料下载:
http://hu437.iteye.com/blog/582931

关于y轴显示4个刻度的解决方案:
public static JFreeChart createBoxAndWhiskerChart(String title, BoxAndWhiskerCategoryDataset dataset) {
// ADD msjian TDQ-5112 2012-4-10: after upgrate to jfreechart-1.0.12.jar, change the default chart wallPaint
ChartFactory.setChartTheme(StandardChartTheme.createLegacyTheme());
// TDQ-5112~
JFreeChart chart = ChartFactory.createBoxAndWhiskerChart(null, title,
Messages.getString(“TopChartFactory.Value”), dataset, false); // $NON-NLS-1$
CategoryPlot plot = chart.getCategoryPlot();

NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setAutoRange(false);

double min = dataset.getMinRegularValue("0", "").doubleValue(); //$NON-NLS-1$ //$NON-NLS-2$
double max = dataset.getMaxRegularValue("0", "").doubleValue(); //$NON-NLS-1$ //$NON-NLS-2$

double unit = (max - min) / 10;
rangeAxis.setRange(min - unit, max + unit);
rangeAxis.setTickUnit(new NumberTickUnit(unit));

BoxAndWhiskerRenderer renderer = (BoxAndWhiskerRenderer) plot.getRenderer();
renderer.setArtifactPaint(ChartDecorator.COLOR_LIST.get(1));

return chart;

}