[JFreeChart]XYBarRenderer Superposition de bars
Bonjour
J'ai créé une fonction qui ajoute plusieurs series à mon dataset pour permettre d'afficher plusieurs graphiques sur la même images. Pour les graphiques line aucun soucis l'ordre importe peu mais pour les XYBar, si j'ai retourné de ma bdd la première series avec les plus grandes valeurs en premier, je me retrouve avec un graphe en bar ou on ne voie qu'une partie.
Je voudrais savoir s'il y avait un moyen de trier le dataset de manière à toujours avoir les plus petites valeurs au premier plan.
Merci
Code:
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| package com.xxx.xxxxxxxxxx.util;
import java.text.SimpleDateFormat;
import java.util.GregorianCalendar;
import java.util.Iterator;
import java.util.LinkedList;
import org.apache.log4j.Logger;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.labels.StandardXYItemLabelGenerator;
import org.jfree.chart.labels.StandardXYToolTipGenerator;
import org.jfree.chart.labels.XYItemLabelGenerator;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.AbstractXYItemRenderer;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.chart.renderer.xy.XYBarRenderer;
import org.jfree.data.general.Dataset;
import org.jfree.data.general.Series;
import org.jfree.data.time.SimpleTimePeriod;
import org.jfree.data.time.TimePeriod;
import org.jfree.data.time.TimePeriodValue;
import org.jfree.data.time.TimePeriodValues;
import org.jfree.data.time.TimePeriodValuesCollection;
import org.jfree.data.xy.DefaultTableXYDataset;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import com.xxxx.xxxxxxxxxx.dto.StatsDTO;
/**
* class used to be create chart and generate picture
* @author xxxxxxxxx xxxxxxxxxx
* @version 1
*
*/
public class SimpleChart {
private static Logger logger = Logger.getLogger("com.atos.wkexploit");
//Default value
private static boolean AUTOSORT = true;
private static boolean ALLOWDUPLICATEXVALUES= false;
private static String LBLDATEAXIS = "Date";
private static String LBLVALUEAXIS = "Number";
private static String DATEFORMAT = "dd/MM";
private boolean legend = false;
//Attributs
private Dataset dataset = null;
private Integer type = null;
/**
* Create a dataset about the type of chart
* @since 1
* @param type
*/
public SimpleChart(Integer _type) {
super();
logger.debug("SimpleChart : constructor");
this.type = _type;
switch(type.intValue()){
case 1:
case 3:
logger.debug("SimpleChart : line chart");
dataset = new DefaultTableXYDataset();
break;
case 2:
logger.debug("SimpleChart : bar chart");
dataset = new TimePeriodValuesCollection();
break;
}
}
/**
* Method to initialize the dataset with all value in LinkedList
* @since 1
* @param LinkedList<LinkedList<ListStatsChart>>
*/
public void initDataset(LinkedList lkllklstats){
logger.debug("SimpleChart.initDataset() : Begin");
Series series = null;
Iterator iter = lkllklstats.iterator();
while (iter.hasNext()){
LinkedList lklstats = (LinkedList)iter.next();
if(lklstats.size() > 1){
logger.debug("SimpleChart.initDataset() : legend actived");
legend = true;
}
Iterator it = lklstats.iterator();
while (it.hasNext()){
ListStatsChart lsc = (ListStatsChart)it.next();
switch(type.intValue()){
case 1:
case 3:
logger.debug("SimpleChart.initDataset() : line chart");
series = new XYSeries(lsc.getKey(), AUTOSORT, ALLOWDUPLICATEXVALUES);
break;
case 2:
logger.debug("SimpleChart.initDataset() : bar chart");
series = new TimePeriodValues(lsc.getKey().toString());
break;
}
StatsDTO stt = null;
logger.debug("SimpleChart.initDataset() : init Series : BEGIN");
Iterator itsStats = lsc.getListStat().iterator();
while (itsStats.hasNext()) {
try {
stt = (StatsDTO)itsStats.next();
switch(type.intValue()){
case 1:
logger.debug("SimpleChart.initDataset() : line chart : date : " + stt.getSttDate() + " value : " + stt.getSttValue());
((XYSeries)series).add(stt.getSttDate().getTime(), Double.parseDouble(stt.getSttValue()));
break;
case 2:
logger.debug("SimpleChart.initDataset() : Bar chart : date : " + stt.getSttTime() + " value : " + stt.getSttValue());
GregorianCalendar gcTmpBegin = new GregorianCalendar();
GregorianCalendar gcTmpEnd = new GregorianCalendar();
gcTmpBegin.setTime(stt.getSttTime());
gcTmpBegin.set(GregorianCalendar.SECOND, 0);
gcTmpEnd.setTime(stt.getSttTime());
gcTmpEnd.add(GregorianCalendar.MINUTE, 9);
gcTmpEnd.set(GregorianCalendar.SECOND, 59);
TimePeriod period = new SimpleTimePeriod(gcTmpBegin.getTime(), gcTmpEnd.getTime());
TimePeriodValue item = new TimePeriodValue(period, Double.parseDouble(stt.getSttValue()));
((TimePeriodValues)series).add(item);
break;
case 3:
logger.debug("SimpleChart.initDataset() : line chart 3 : date : " + stt.getSttTime() + " value : " + stt.getSttValue());
((XYSeries)series).add(stt.getSttTime().getTime(), Double.parseDouble(stt.getSttValue()));
break;
}
} catch (Exception e) {
logger.error(StackTraceUtil.getInstance().getStackTrace(e));
}
}
logger.debug("SimpleChart.initDataset() : init Series : END");
try {
switch(type.intValue()){
case 1:
case 3:
logger.debug("SimpleChart.initDataset() : addSeries : " + type);
((DefaultTableXYDataset)dataset).addSeries((XYSeries)series);
break;
case 2:
logger.debug("SimpleChart.initDataset() : addSeries : " + type);
((TimePeriodValuesCollection)dataset).addSeries((TimePeriodValues)series);
break;
}
} catch (Exception e){
logger.error(StackTraceUtil.getInstance().getStackTrace(e));
}
}
}
logger.debug("SimpleChart.initDataset() : end");
}
/**
* Method to create chart
* @since 1
* @param labelDateAxis
* @param dateFormat
* @param labelNumberAxis
* @return JFreeChart
*/
public JFreeChart createChart(String labelDateAxis, String dateFormat, String labelNumberAxis ){
logger.debug("SimpleChart.createChart() : Begin");
if(labelDateAxis == null || labelDateAxis.trim().equals("")){
labelDateAxis = LBLDATEAXIS;
}
if(dateFormat == null || dateFormat.trim().equals("")){
dateFormat = DATEFORMAT;
}
if(labelNumberAxis == null || labelNumberAxis.trim().equals("")){
labelNumberAxis = LBLVALUEAXIS;
}
// -- Create date axis
DateAxis timeAxis = new DateAxis(labelDateAxis);
timeAxis.setDateFormatOverride(new SimpleDateFormat(dateFormat));
// -- Create number axis
NumberAxis valueAxis = new NumberAxis(labelNumberAxis);
valueAxis.setAutoRangeIncludesZero(false);
AbstractXYItemRenderer renderer = null;
XYPlot plot = null;
switch(this.type.intValue()){
case 1:
case 3:
// -- configure renderer
renderer = new StandardXYItemRenderer(StandardXYItemRenderer.LINES + StandardXYItemRenderer.SHAPES);
((StandardXYItemRenderer)renderer).setBaseShapesFilled(true);
XYItemLabelGenerator generator = new StandardXYItemLabelGenerator();
renderer.setBaseItemLabelGenerator(generator);
renderer.setBaseToolTipGenerator(StandardXYToolTipGenerator.getTimeSeriesInstance());
// -- Create plot ...
plot = new XYPlot((XYDataset) this.dataset, timeAxis, valueAxis, renderer);
break;
case 2:
renderer = new XYBarRenderer(0.0);
((XYBarRenderer)renderer).setShadowVisible(false);
// -- Create plot ...
plot = new XYPlot((TimePeriodValuesCollection)dataset, timeAxis, valueAxis, renderer);
plot.getDomainAxis().setLowerMargin(0.0);
plot.getDomainAxis().setUpperMargin(0.0);
break;
}
// -- ... and finally chart
JFreeChart chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, plot, legend);
// -- Configure chart
chart.setBackgroundPaint(java.awt.Color.white);
logger.debug("SimpleChart.createChart() : End");
return chart;
}
} |
