如何在 JFreeChart 中自定义 CategoryPlot 项目的工具提示?
我需要更改图表中绘制的条形图中默认工具提示的格式.
I need to change the format of the default tooltip in the bars drawn in the plot of a chart.
我不知道我看待问题的方向是否正确.我正在查看类 StandardCategoryToolTipGenerator 的默认格式，即
I don't know if my direction of looking at the problem is right. I am looking at the default format for the class StandardCategoryToolTipGenerator that is
DEFAULT_TOOL_TIP_FORMAT_STRING = "({0}, {1}) = {2}"
如何重新定义这个值?
提前致谢.
推荐答案
StandardCategoryToolTipGenerator 设置 MessageFormat ArgumentIndex 值到 series、category 和 值.在你的情节上试试这个例子.
The StandardCategoryToolTipGenerator sets the MessageFormat ArgumentIndex values to the series, category and value. Try this example on your plot.
BarRenderer renderer = (BarRenderer) plot.getRenderer();
renderer.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator(
"Series {0}, Category {1}, Value {2}", NumberFormat.getInstance()));
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