jfreechart实例 线形图和柱状图同时显示
package com.ami;
import org.jfree.ui.ApplicationFrame;
import java.awt.Color;
import java.awt.Dimension;
import java.text.NumberFormat;
import javax.swing.JPanel;
import org.jfree.chart.*;
import org.jfree.chart.axis.*;
import org.jfree.chart.plot.*;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.DataUtilities;
import org.jfree.data.DefaultKeyedValues;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DatasetUtilities;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.util.SortOrder;
public class ParetoChartDemo1 extends ApplicationFrame
{
public ParetoChartDemo1(String s)
{
super(s);
JPanel jpanel = createDemoPanel();
jpanel.setPreferredSize(new Dimension(550, 270));
setContentPane(jpanel);
}
public static JFreeChart createChart(CategoryDataset acategorydataset[])
{
JFreeChart jfreechart = ChartFactory.createBarChart("Freshmeat Software Projects", "Language", "Projects", acategorydataset[0], PlotOrientation.VERTICAL, true, true, false);
jfreechart.addSubtitle(new TextTitle("By Programming Language"));
jfreechart.addSubtitle(new TextTitle("As at 5 March 2003"));
jfreechart.setBackgroundPaint(Color.white);
CategoryPlot categoryplot = (CategoryPlot)jfreechart.getPlot();
categoryplot.setBackgroundPaint(Color.lightGray);
categoryplot.setRangeGridlinePaint(Color.white);
CategoryAxis categoryaxis = categoryplot.getDomainAxis();
categoryaxis.setLowerMargin(0.02D);
categoryaxis.setUpperMargin(0.02D);
categoryaxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);
NumberAxis numberaxis = (NumberAxis)categoryplot.getRangeAxis();
numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
LineAndShapeRenderer lineandshaperenderer = new LineAndShapeRenderer();
NumberAxis numberaxis1 = new NumberAxis("Percent");
numberaxis1.setNumberFormatOverride(NumberFormat.getPercentInstance());
categoryplot.setRangeAxis(1, numberaxis1);
categoryplot.setDataset(1, acategorydataset[1]);
categoryplot.setRenderer(1, lineandshaperenderer);
categoryplot.mapDatasetToRangeAxis(1, 1);
categoryplot.setDatasetRenderingOrder(DatasetRenderingOrder.FORWARD);
return jfreechart;
}
public static CategoryDataset[] createDatasets()
{
DefaultKeyedValues defaultkeyedvalues = new DefaultKeyedValues();
defaultkeyedvalues.addValue("C", new Integer(4843));
defaultkeyedvalues.addValue("C++", new Integer(2098));
defaultkeyedvalues.addValue("C#", new Integer(26));
defaultkeyedvalues.addValue("Java", new Integer(1901));
defaultkeyedvalues.addValue("Perl", new Integer(2507));
defaultkeyedvalues.addValue("PHP", new Integer(1689));
defaultkeyedvalues.addValue("Python", new Integer(948));
defaultkeyedvalues.addValue("Ruby", new Integer(100));
defaultkeyedvalues.addValue("SQL", new Integer(263));
defaultkeyedvalues.addValue("Unix Shell", new Integer(485));
defaultkeyedvalues.sortByValues(SortOrder.DESCENDING);
org.jfree.data.KeyedValues keyedvalues = DataUtilities.getCumulativePercentages(defaultkeyedvalues);
CategoryDataset categorydataset = DatasetUtilities.createCategoryDataset("Languages", defaultkeyedvalues);
CategoryDataset categorydataset1 = DatasetUtilities.createCategoryDataset("Cumulative", keyedvalues);
return (new CategoryDataset[] {
categorydataset, categorydataset1
});
}
public static JPanel createDemoPanel()
{
CategoryDataset acategorydataset[] = createDatasets();
JFreeChart jfreechart = createChart(acategorydataset);
return new ChartPanel(jfreechart);
}
public static void main(String args[])
{
ParetoChartDemo1 paretochartdemo1 = new ParetoChartDemo1("Pareto Chart Demo 1");
paretochartdemo1.pack();
RefineryUtilities.centerFrameOnScreen(paretochartdemo1);
paretochartdemo1.setVisible(true);
}
}
效果图
