JFreeChart How create an areachart with an TimeLine axis - jfreechart

Question

I want to make the example of jfreechart: XYAreaChartDemo2.java, an xyareachart but the X axis must be of timeSeries. i have tried this:
TimeSeriesCollection dataset1 = new TimeSeriesCollection(timeSeries);//my timeseries
XYSeriesCollection dataset2 = new XYSeriesCollection();
JFreeChart chart = ChartFactory.createXYAreaChart("titulo","Eje x","eje Y", dataset2, PlotOrientation.VERTICAL,true, false,false);
chart.setBackgroundPaint(Color.white);
XYPlot xyplot= chart.getXYPlot();
//fondo
xyplot.setBackgroundPaint(Color.white);
//pone la serie de time en el formato area (pero pierde el formato tiempo)
xyplot.setDataset(dataset1);
but my chart is returned like a areachart with x-axis from 0 to 1.285......

Answer 1

I have a recommended solution here.
Don't limit your mind on making XYAreaChart with TimeSeries X axis. Why not make a TimeSeries chart and render it into XYAreaChart?
Here is how it can be done.
// Create TimeSeriesChart
JFreeChart localJFreeChart = createChart(createDataset());
// Set to be XYAreaChart
XYItemRenderer render = new XYAreaRenderer();
XYPlot plot = localJFreeChart.getXYPlot();
plot.setRenderer(render);
in which
private static JFreeChart createChart(XYDataset paramXYDataset) {
JFreeChart localJFreeChart = ChartFactory.createTimeSeriesChart("Legal & General Unit Trust Prices", "Date", "Price Per Unit", paramXYDataset, true, true, false);
// ...
return (JFreeChart) localJFreeChart;
}
Full code can be seen here.
Most of the code is from TimeSeriesDemo1 in JFreeChart-1.0.14-demo.jar, and modified by myself to meet your requirements.
Hope this could help.

Answer 2

I'm assuming you're using TimeSeries and adding instances of RegularTimePeriod to the data set. By default, the method ChartFactory. createXYAreaChart() uses a NumberAxis for the domain. Instead, use a DateAxis.
XYPlot plot = chart.getXYPlot();
DateAxis domain = new DateAxis("Tiempo");
plot.setDomainAxis(domain);