when I create a chart with TimeSeries and Moth.class the month label names from the x-axis will be repeated.
If I have January, February, March with data and the x-axis renderes the lables:
January January February March March
Tested with JFreeChart V1.0.5
Is there a way to prevent the double entries of the labels?
Any answere is highly appreciated.
Thanks.
Please find the code with test data here:
Code: Select all
package de.telenet.bargraph;
import java.awt.Color;
import java.awt.Font;
import java.awt.Paint;
import java.text.DateFormat;
import java.text.DecimalFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.Iterator;
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.DateTickMarkPosition;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.TickUnitSource;
import org.jfree.chart.labels.StandardXYItemLabelGenerator;
import org.jfree.chart.labels.StandardXYToolTipGenerator;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.ClusteredXYBarRenderer;
import org.jfree.data.time.Month;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
public class BarChartTest extends ApplicationFrame {
public final String DATEFORMAT_MONTH = "MMMM";
public static final Paint LIGHT_RED = new java.awt.Color(255,191,233);
public static final Paint COBALD = new java.awt.Color(40,71,102);
public static final Paint WHITE = new java.awt.Color(255, 255, 255);
Date startDate = formatDate("01.01.2007 00:00:00"); //Begin of time range for x-axis
Date endDate = formatDate("31.03.2007 00:00:00"); //End of time range for x-axis
String labelXAxis1 = "Month";
String labelYAxis1 = "Caller";
String title = "Test BarGraph";
int intervalInMinutes = 86400;
TimeSeries tSeries1 = new TimeSeries("Total Calls", Month.class); // time series for graph, monthly view
TimeSeries tSeries2 = new TimeSeries("Successfull Calls", Month.class); //
JFreeChart chart;
XYPlot plot;
NumberAxis axisNum;
DateAxis axis;
/**
* A test application showing a horizontal bar chart.
*/
private static final long serialVersionUID = 1L;
/**
* Creates a new demo instance.
*
* @param title the frame title.
*/
public BarChartTest(String title) {
super(title);
initTimeSeries();
generateChart();
ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Initalize time series with a sample dataset.
*
*/
private void initTimeSeries() {
List dates = new ArrayList();
dates.add(formatDate("01.01.2007 00:00:00"));
dates.add(formatDate("01.02.2007 00:00:00"));
dates.add(formatDate("01.03.2007 00:00:00"));
Iterator it = dates.iterator();
while ( it.hasNext() ) {
Date myDate = (Date) it.next();
tSeries1.add(new Month ((Date) myDate), 25); //
tSeries2.add(new Month ((Date) myDate), 10); //
}
}
/**
* generate JFreeGraph chart
*/
private void generateChart() {
//Create dataset needed by chart with time series
TimeSeriesCollection dataset = new TimeSeriesCollection();
dataset.addSeries(tSeries1);
dataset.addSeries(tSeries2);
chart = ChartFactory.createXYBarChart(
this.getTitle(), //title
"Month", // x-axis label
true, // date axis?
"Total Calls", // y-axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // create legend?
true, // generate tooltips?
false // generate URLs?
);
// customise chart
chart.setBackgroundPaint(WHITE);
//initialize the plot
this.plot = chart.getXYPlot();
//set the range axis to display integers only...
ClusteredXYBarRenderer r = new ClusteredXYBarRenderer();
r.setItemLabelGenerator(
new StandardXYItemLabelGenerator()
);
r.setSeriesPaint(0, LIGHT_RED);
r.setSeriesPaint(1, COBALD);
// the margin between two bars is specified as a percentage of the bar
// width
// (for example, 0.10 is ten percent) and is the amount
// that is trimmed from the bar width before the bar is displayed.
r.setMargin(0.1);
r.setToolTipGenerator(
new StandardXYToolTipGenerator(
StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,
new SimpleDateFormat("d.MM.y HH:mm"), new DecimalFormat("0,000.0")
)
);
plot.setRenderer(r);
//set colors
plot.setBackgroundPaint(Color.lightGray);
plot.setRangeGridlinePaint(Color.white);
//Init Range (Y-Axis)
this.axisNum = (NumberAxis) plot.getRangeAxis();
//Use only integers for y-axis
TickUnitSource units = NumberAxis.createIntegerTickUnits();
axisNum.setStandardTickUnits(units);
axisNum.setLabelFont(new Font("Arial", Font.PLAIN, 10));
//Init Domain (X-Axis)
//User date for x-axis
this.axis = (DateAxis) plot.getDomainAxis();
TickUnitSource unitsAxis = DateAxis.createStandardDateTickUnits();
this.axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);
this.axis.setStandardTickUnits(unitsAxis);
this.axis.setRange(startDate, endDate);
this.axis.setMinimumDate(startDate);
this.axis.setMaximumDate(endDate);
axis.setDateFormatOverride(new SimpleDateFormat(DATEFORMAT_MONTH, new Locale("en")));
chart.setBackgroundPaint(WHITE);
((JFreeChart) chart).getTitle().setFont(new Font("Arial", Font.TRUETYPE_FONT, 17));
((JFreeChart) chart).getTitle().setPaint(new java.awt.Color(153, 153, 153));//#999999
}
/**
* Format a string to a date object
* @param myDate
* @return
*/
private Date formatDate(String myDate) {
DateFormat format = DateFormat.getDateTimeInstance();
Date d = null;
try {
d = format.parse(myDate);
} catch ( ParseException e1 ) {}
return d;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
BarChartTest demo = new BarChartTest("Bar Chart Test Time Series");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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