?? overlaidbarchartdemo1.java
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/* -------------------------
* OverlaidBarChartDemo1.java
* -------------------------
* (C) Copyright 2002-2005, by Object Refinery Limited.
*/
package demo;
import javax.swing.JPanel;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.labels.CategoryItemLabelGenerator;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.DatasetRenderingOrder;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A simple demonstration application showing how to create a bar chart overlaid
* with a line chart.
*/
public class OverlaidBarChartDemo1 extends ApplicationFrame {
/**
* Default constructor.
*
* @param title the frame title.
*/
public OverlaidBarChartDemo1(String title) {
super(title);
JPanel chartPanel = createDemoPanel();
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Creates a demo chart.
*
* @return A chart.
*/
public static JFreeChart createChart() {
// create the first dataset...
DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
dataset1.addValue(1.0, "S1", "Category 1");
dataset1.addValue(4.0, "S1", "Category 2");
dataset1.addValue(3.0, "S1", "Category 3");
dataset1.addValue(5.0, "S1", "Category 4");
dataset1.addValue(5.0, "S1", "Category 5");
dataset1.addValue(7.0, "S1", "Category 6");
dataset1.addValue(7.0, "S1", "Category 7");
dataset1.addValue(8.0, "S1", "Category 8");
dataset1.addValue(5.0, "S2", "Category 1");
dataset1.addValue(7.0, "S2", "Category 2");
dataset1.addValue(6.0, "S2", "Category 3");
dataset1.addValue(8.0, "S2", "Category 4");
dataset1.addValue(4.0, "S2", "Category 5");
dataset1.addValue(4.0, "S2", "Category 6");
dataset1.addValue(2.0, "S2", "Category 7");
dataset1.addValue(1.0, "S2", "Category 8");
// create the first renderer...
CategoryItemLabelGenerator generator
= new StandardCategoryItemLabelGenerator();
CategoryItemRenderer renderer = new BarRenderer();
renderer.setItemLabelGenerator(generator);
renderer.setItemLabelsVisible(true);
CategoryPlot plot = new CategoryPlot();
plot.setDataset(dataset1);
plot.setRenderer(renderer);
plot.setDomainAxis(new CategoryAxis("Category"));
plot.setRangeAxis(new NumberAxis("Value"));
plot.setOrientation(PlotOrientation.VERTICAL);
plot.setRangeGridlinesVisible(true);
plot.setDomainGridlinesVisible(true);
// now create the second dataset and renderer...
DefaultCategoryDataset dataset2 = new DefaultCategoryDataset();
dataset2.addValue(9.0, "T1", "Category 1");
dataset2.addValue(7.0, "T1", "Category 2");
dataset2.addValue(2.0, "T1", "Category 3");
dataset2.addValue(6.0, "T1", "Category 4");
dataset2.addValue(6.0, "T1", "Category 5");
dataset2.addValue(9.0, "T1", "Category 6");
dataset2.addValue(5.0, "T1", "Category 7");
dataset2.addValue(4.0, "T1", "Category 8");
CategoryItemRenderer renderer2 = new LineAndShapeRenderer();
plot.setDataset(1, dataset2);
plot.setRenderer(1, renderer2);
// create the third dataset and renderer...
ValueAxis rangeAxis2 = new NumberAxis("Axis 2");
plot.setRangeAxis(1, rangeAxis2);
DefaultCategoryDataset dataset3 = new DefaultCategoryDataset();
dataset3.addValue(94.0, "R1", "Category 1");
dataset3.addValue(75.0, "R1", "Category 2");
dataset3.addValue(22.0, "R1", "Category 3");
dataset3.addValue(74.0, "R1", "Category 4");
dataset3.addValue(83.0, "R1", "Category 5");
dataset3.addValue(9.0, "R1", "Category 6");
dataset3.addValue(23.0, "R1", "Category 7");
dataset3.addValue(98.0, "R1", "Category 8");
plot.setDataset(2, dataset3);
CategoryItemRenderer renderer3 = new LineAndShapeRenderer();
plot.setRenderer(2, renderer3);
plot.mapDatasetToRangeAxis(2, 1);
// change the rendering order so the primary dataset appears "behind" the
// other datasets...
plot.setDatasetRenderingOrder(DatasetRenderingOrder.FORWARD);
plot.getDomainAxis().setCategoryLabelPositions(CategoryLabelPositions.UP_45);
JFreeChart chart = new JFreeChart(plot);
chart.setTitle("Overlaid Bar Chart");
return chart;
}
/**
* Creates a panel for the demo (used by SuperDemo.java).
*
* @return A panel.
*/
public static JPanel createDemoPanel() {
JFreeChart chart = createChart();
return new ChartPanel(chart);
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
OverlaidBarChartDemo1 demo = new OverlaidBarChartDemo1(
"Overlaid Bar Chart Demo"
);
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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