目次 ⇒ JFreeChartサンプル
package jp.avaj.lib.chart;

import java.awt.Font;

import org.jfree.chart.ChartFrame;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.CombinedDomainCategoryPlot;
import org.jfree.chart.plot.Plot;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.RectangleInsets;

/**
■ JFreeChart-X軸が共通な二つのグラフを上下に表示する

 */
public class Chart18_07 {

  public static void main(String[] paramArrayOfString) {
    CategoryPlot plot0;
    {
      CategoryDataset dataset0 = createDataset0();
      NumberAxis axis0 = new NumberAxis("Sales");
      axis0.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
      LineAndShapeRenderer render0 = new LineAndShapeRenderer();
      plot0 = new CategoryPlot(dataset0,null,axis0,render0); // (1)
      plot0.setDomainGridlinesVisible(true);
    }

    CategoryPlot plot1;
    {
      CategoryDataset dataset1 = createDataset1();
      NumberAxis axis1 = new NumberAxis("Sales");
      axis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
      BarRenderer renderer1 = new BarRenderer();
      plot1 = new CategoryPlot(dataset1,null,axis1,renderer1); // (1)
      plot1.setDomainGridlinesVisible(true);
    }

    CategoryAxis xaxis = new CategoryAxis("BRANCH");
    CombinedDomainCategoryPlot combinedPlot = new CombinedDomainCategoryPlot(xaxis); // (2)
    combinedPlot.add(plot0,2);
    combinedPlot.add(plot1,1);
    //
    JFreeChart chart = new JFreeChart("CombinedCategoryChart",new Font("SansSerif",1,12),combinedPlot,true);
    ChartUtilities.applyCurrentTheme(chart);
    plot0.setAxisOffset(RectangleInsets.ZERO_INSETS);
    plot1.setAxisOffset(RectangleInsets.ZERO_INSETS);
    //
    JFreeChart jfreeChart = new JFreeChart("CombinedCategoryChart",(Plot)combinedPlot);
    ChartFrame cFrame = new ChartFrame("CombinedCategoryChart",(JFreeChart)jfreeChart);
    cFrame.pack();
    cFrame.setVisible(true);
  }

  static final String BRAND0 = "Brand0";
  static final String BRAND1 = "Brand1";
  static final String BRAND2 = "Brand2";
  static final String BRAND3 = "Brand3";

  static final String BRANCH0 = "BRANCH0";
  static final String BRANCH1 = "BRANCH1";
  static final String BRANCH2 = "BRANCH2";
  static final String BRANCH3 = "BRANCH3";
  static final String BRANCH4 = "BRANCH4";
  static final String BRANCH5 = "BRANCH5";
  static final String BRANCH6 = "BRANCH6";
  static final String BRANCH7 = "BRANCH7";

  private static CategoryDataset createDataset0() {

    DefaultCategoryDataset localDefaultCategoryDataset = new DefaultCategoryDataset();
    localDefaultCategoryDataset.addValue(1.0D,BRAND0,BRANCH0);
    localDefaultCategoryDataset.addValue(4.0D,BRAND0,BRANCH1);
    localDefaultCategoryDataset.addValue(3.0D,BRAND0,BRANCH2);
    localDefaultCategoryDataset.addValue(5.0D,BRAND0,BRANCH3);
    localDefaultCategoryDataset.addValue(5.0D,BRAND0,BRANCH4);
    localDefaultCategoryDataset.addValue(7.0D,BRAND0,BRANCH5);
    localDefaultCategoryDataset.addValue(7.0D,BRAND0,BRANCH6);
    localDefaultCategoryDataset.addValue(8.0D,BRAND0,BRANCH7);
    localDefaultCategoryDataset.addValue(5.0D,BRAND1,BRANCH0);
    localDefaultCategoryDataset.addValue(7.0D,BRAND1,BRANCH1);
    localDefaultCategoryDataset.addValue(6.0D,BRAND1,BRANCH2);
    localDefaultCategoryDataset.addValue(8.0D,BRAND1,BRANCH3);
    localDefaultCategoryDataset.addValue(4.0D,BRAND1,BRANCH4);
    localDefaultCategoryDataset.addValue(4.0D,BRAND1,BRANCH5);
    localDefaultCategoryDataset.addValue(2.0D,BRAND1,BRANCH6);
    localDefaultCategoryDataset.addValue(1.0D,BRAND1,BRANCH7);
    return localDefaultCategoryDataset;
  }

  private static CategoryDataset createDataset1() {

    DefaultCategoryDataset localDefaultCategoryDataset = new DefaultCategoryDataset();
    localDefaultCategoryDataset.addValue(11.0D,BRAND2,BRANCH0);
    localDefaultCategoryDataset.addValue(14.0D,BRAND2,BRANCH1);
    localDefaultCategoryDataset.addValue(13.0D,BRAND2,BRANCH2);
    localDefaultCategoryDataset.addValue(15.0D,BRAND2,BRANCH3);
    localDefaultCategoryDataset.addValue(15.0D,BRAND2,BRANCH4);
    localDefaultCategoryDataset.addValue(17.0D,BRAND2,BRANCH5);
    localDefaultCategoryDataset.addValue(17.0D,BRAND2,BRANCH6);
    localDefaultCategoryDataset.addValue(18.0D,BRAND2,BRANCH7);
    localDefaultCategoryDataset.addValue(15.0D,BRAND3,BRANCH0);
    localDefaultCategoryDataset.addValue(17.0D,BRAND3,BRANCH1);
    localDefaultCategoryDataset.addValue(16.0D,BRAND3,BRANCH2);
    localDefaultCategoryDataset.addValue(18.0D,BRAND3,BRANCH3);
    localDefaultCategoryDataset.addValue(14.0D,BRAND3,BRANCH4);
    localDefaultCategoryDataset.addValue(14.0D,BRAND3,BRANCH5);
    localDefaultCategoryDataset.addValue(12.0D,BRAND3,BRANCH6);
    localDefaultCategoryDataset.addValue(11.0D,BRAND3,BRANCH7);
    return localDefaultCategoryDataset;
  }
}