How to make jfreechart displaying the tooltip point information faster

问题

I would like to make the point info tooltip appear faster. How can i do it? with the default setting I have to hover the mouse onto the point, then wait to be able to see point coordinate information. I want the point coordinates to be immediately available. How can i do that?

回答1:

ChartPanel provides getInitialDelay() and setInitialDelay() to query and alter "the initial tooltip delay value used inside this chart panel." As a concrete example based on BarChartDemo1, the following change to the constructor eliminates the initial delay entirely:

public BarChartDemo1(String title) {
    super(title);
    …
    chartPanel.setInitialDelay(0);
    setContentPane(chartPanel);
}

来源：https://stackoverflow.com/questions/16574733/how-to-make-jfreechart-displaying-the-tooltip-point-information-faster