Bug in TimeSeries Chart

[jreechart_tsk]

Hi there

I wanted to post this on sourceforge but it told me that i need to be authorized so i post it here. This is an issue since 1.0.18 for jfreechart.

For a time series plot, the y-range of the plot is not set correctly (just defaults to default [0, 1.05] when there is a Double.NaN value in the time series data. Example is below. The original example has a null instead of a Double.NaN for Quarter(2, 2002).

all the best

s



/* --------------------
* TimeSeriesDemo2.java
* --------------------
* (C) Copyright 2002-2009, by Object Refinery Limited.
*
*/


import javax.swing.JPanel;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.ValueMarker;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.time.Quarter;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.XYDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
* A demo showing a time series (quarterly data) with a <code>null</code>
* value. The <code>null</code> value causes a gap in the line connecting the
* data points.
*/
public class TimeSeriesDemo2 extends ApplicationFrame {

/**
* A demonstration application showing a quarterly time series containing a null value.
*
* @param title the frame title.
*/
public TimeSeriesDemo2(String title) {

super(title);
XYDataset dataset = createDataset();
JFreeChart chart = createChart(dataset);
ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);

}

private static XYDataset createDataset() {
TimeSeries series = new TimeSeries("Quarterly Data");
series.add(new Quarter(1, 2001), 500.2);
series.add(new Quarter(2, 2001), 694.1);
series.add(new Quarter(3, 2001), 734.4);
series.add(new Quarter(4, 2001), 453.2);
series.add(new Quarter(1, 2002), 500.2);
series.add(new Quarter(2, 2002), Double.NaN); // ISSUE IS HERE!!!!!
series.add(new Quarter(3, 2002), 734.4);
series.add(new Quarter(4, 2002), 453.2);
TimeSeriesCollection dataset = new TimeSeriesCollection(series);
return dataset;
}

private static JFreeChart createChart(XYDataset dataset) {
JFreeChart chart = ChartFactory.createTimeSeriesChart(
"Time Series Demo 2",
"Time",
"Value",
dataset,
true,
true,
false
);
XYPlot plot = (XYPlot) chart.getPlot();
plot.addRangeMarker(new ValueMarker(550.0));
Quarter q = new Quarter(2, 2002);
plot.addDomainMarker(new ValueMarker(q.getMiddleMillisecond()));
return chart;
}

/**
* Creates a panel for the demo (used by SuperDemo.java).
*
* @return A panel.
*/
public static JPanel createDemoPanel() {
JFreeChart chart = createChart(createDataset());
return new ChartPanel(chart);
}

/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {

TimeSeriesDemo2 demo = new TimeSeriesDemo2("Time Series Demo 2");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);

}

}

[david.gilbert]

Thanks for the report. I committed a fix for the next release.

[david.gilbert]

https://sourceforge.net/p/jfreechart/code/3309/