JfreeChart/Java中带有图例的数据表 [英] Data table with legends in JfreeChart/Java

问题描述

我正在使用JFreeChart生成图像.我正在尝试创建如下的条形图.没有数据表，我就能成功创建它.我试图从jfreechar论坛中获取更多信息，并发现了此帖子.根据该帖子，JfreeChart不支持它.

I am using JFreeChart to generate images. I am trying to create barchart like below. I am able to create it successfully without data table. I tried to get more information from the jfreechar forums and found this post. According to the post , its not supported by JfreeChart.

• jfreechart API仍不支持它吗?
• 如果可以，我是否可以使用任何其他图表(开源)工具来生成带有数据表的图表?

谢谢

替代文本http://img153.imageshack.us/img153/4550/jfree .png

推荐答案

我不知道这方面有什么新变化.一种简单的方法是依赖默认的CategoryToolTipGenerator或根据需要对其进行自定义:

I'm not aware of a anything new in this area. One simple approach is to rely on the default CategoryToolTipGenerator or customize it as desired:

BarRenderer renderer = (BarRenderer) plot.getRenderer();
renderer.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator(
    "({0}, {1}) = {2}", NumberFormat.getInstance()));

一种更雄心勃勃的方法是添加一个具有TableModel的JTable，可以访问图表的CategoryDataset.最左边一列的TableCellRenderer可能使用BarRenderer的getSeriesPaint().此示例显示了一个自定义渲染器，该渲染器实现了Icon界面进行绘制.

A more ambitious approach would be to add a JTable having a TableModel with access to your chart's CategoryDataset. A TableCellRenderer for the leftmost column might use the BarRenderer's getSeriesPaint(). This example shows a custom renderer that implements the Icon interface to do the drawing.

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