问题描述
我有以下图表:
现在我的问题是,当用户点击图表的Linux部分时,我想打开一个包含Linux OS信息的新图表,如红色所示。我试过这个:
Now my problem is I want to open a new chart containing the information for Linux OS when a user clicks on Linux portion of chart, shown in red. I have tried this:
//check if Linux OS is clicked on chart...
if("Linux".equals(chartMouseEvent.getEntity().getToolTipText()))
{
//open new chart having the information for Linux
}
但我认为可能有更好的替代品来做同样的工作。
如果您知道如何实现这一点,请提供帮助。
But I think there may be some better alternate to do the same job.So please help if you know how to achieve this.
推荐答案
很好选择,但 getToolTipText()
不是唯一可用的资源。 getURLText()
方法也很方便,使用。或者,可以直接访问数据集:
ChartEntity
is a good choice, but getToolTipText()
is not the only resource available. The getURLText()
method is also handy, using the information provided by the StandardPieURLGenerator
. Alternatively, a custom implementation of PieURLGenerator
can access the data set directly:
plot.setURLGenerator(new PieURLGenerator() {
public String generateURL(PieDataset dataset, Comparable key, int pieIndex) {
// access the dataset as required
}
});
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