Requirement: i need to display toolTip(No data available) and image on time series chart which have null data ie; Image 2 on gray color area.
Problem:I am not able to get it.
Image With some data ie; series1.addOrUpdate(absoluteMSecond, data[i]);
Image with null data ie; series1.addOrUpdate(absoluteMSecond, null);
COde:
import java.util.Calendar;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.labels.StandardXYToolTipGenerator;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.time.Millisecond;
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;
public class TextOnJFreeChart extends ApplicationFrame {
public TextOnJFreeChart(final String title) {
super(title);
final XYDataset data = createDataset();
final JFreeChart chart = createChart(data);
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
private JFreeChart createChart(final XYDataset data) {
final JFreeChart chart = ChartFactory.createTimeSeriesChart("Text/ToolTip Trying Demo", "X", "Y", data, true, true, true);
final XYPlot plot = chart.getXYPlot();
plot.getRenderer().setToolTipGenerator(StandardXYToolTipGenerator.getTimeSeriesInstance());
plot.setNoDataMessage("Hai it is ok if i get this message.......");
final DateAxis domainAxis = new DateAxis("Time");
domainAxis.setUpperMargin(0.50);
plot.setDomainAxis(domainAxis);
final ValueAxis rangeAxis = plot.getRangeAxis();
rangeAxis.setUpperMargin(0.30);
rangeAxis.setLowerMargin(0.50);
return chart;
}
private XYDataset createDataset() {
final TimeSeriesCollection result = new TimeSeriesCollection();
result.addSeries(createSupplier1Bids());
return result;
}
private TimeSeries createSupplier1Bids()
{
double[] data = {200.0, 195.0, 190.0, 188.0, 185.0, 180.0};
long timeStamp = System.currentTimeMillis();
Millisecond absoluteMSecond = getTimeInMillisecondFormat(timeStamp, 0L);
final TimeSeries series1 = new TimeSeries("Supplier 1", Millisecond.class);
for(int i = 0; i < data.length; i++)
{
absoluteMSecond = getTimeInMillisecondFormat(timeStamp + i * 1000, 0L);
//series1.addOrUpdate(absoluteMSecond, data[i]);
series1.addOrUpdate(absoluteMSecond, null);
}
return series1;
}
public Millisecond getTimeInMillisecondFormat(long timeStamp, long startTime)
{
try
{
long diff = timeStamp - startTime;
Calendar calender = Calendar.getInstance();
calender.setTimeInMillis(diff);
Millisecond elapsedMSecond = new Millisecond(calender.getTime());
return (elapsedMSecond);
}
catch (Exception e)
{
e.printStackTrace();
return null;
}
}
public static void main(final String[] args) {
final TextOnJFreeChart demo = new TextOnJFreeChart("Text/ToolTip Trying Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
Thanks in advance
