[英]JavaFX real-time LineChart with time axis
I'm trying to plot real-time graph, with time axis, but I have found the LineChart
constructor only has the signature. 我正在尝试使用时间轴绘制实时图形,但我发现LineChart
构造函数只有签名。
LineChart(Axis<X> xAxis, Axis<Y> yAxis)
I think embedding jfree chart in javafx is not a proper solution. 我认为在javafx中嵌入jfree图表不是一个合适的解决方案。
I want a few of the jfree features in a javafx LineChart
, is this possible? 我想在javafx LineChart
使用一些jfree功能,这可能吗?
Download Ensemble sample from http://www.oracle.com/technetwork/java/javafx/samples/index.html 从http://www.oracle.com/technetwork/java/javafx/samples/index.html下载Ensemble示例
There are several examples in it for dynamic charts, eg "Advanced Stock Line Chart". 动态图表中有几个例子,例如“高级股票线图”。 You can take a look at their source code directly in the application. 您可以直接在应用程序中查看其源代码。
To show time on axis you can use string and DateFormatter: 要在轴上显示时间,可以使用string和DateFormatter:
BarChart<String, Number> chart = new BarChart<>(new CategoryAxis(), new NumberAxis());
final XYChart.Series<String, Number> series1 = new XYChart.Series<>();
chart.getData().addAll(series1);
SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
Date date = new Date();
for (int i = 0; i <= 10; i += 1) {
date.setTime(date.getTime() + i * 11111);
series1.getData().add(new XYChart.Data(dateFormat.format(date), Math.random() * 500));
}
The class org.jfree.chart.demo.TimeSeriesChartDemo1
is included with the distribution. org.jfree.chart.demo.TimeSeriesChartDemo1
类包含在发行版中。 It is pictured in the demo , and its source illustrates the use of the factory method ChartFactory.createTimeSeriesChart()
. 它在演示中描绘,其源代码说明了工厂方法ChartFactory.createTimeSeriesChart()
。 There's a related example here . 有一个相关的例子在这里 。
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