?? areachartdemo1.java
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/* ------------------
* AreaChartDemo.java
* ------------------
* (C) Copyright 2002-2005, by Object Refinery Limited.
*
*/
package demo;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
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.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.RectangleInsets;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.VerticalAlignment;
import org.jfree.util.UnitType;
/**
* A simple demonstration application showing how to create an area chart
* using data from a {@link CategoryDataset}.
*/
public class AreaChartDemo1 extends ApplicationFrame {
/**
* Creates a new demo application.
*
* @param title the frame title.
*/
public AreaChartDemo1(String title) {
super(title);
CategoryDataset dataset = createDataset();
JFreeChart chart = createChart(dataset);
ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new Dimension(500, 270));
chartPanel.setEnforceFileExtensions(false);
setContentPane(chartPanel);
}
/**
* Creates a sample dataset.
*
* @return A sample dataset.
*/
private static CategoryDataset createDataset() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(1.0, "Series 1", "Type 1");
dataset.addValue(4.0, "Series 1", "Type 2");
dataset.addValue(3.0, "Series 1", "Type 3");
dataset.addValue(5.0, "Series 1", "Type 4");
dataset.addValue(5.0, "Series 1", "Type 5");
dataset.addValue(7.0, "Series 1", "Type 6");
dataset.addValue(7.0, "Series 1", "Type 7");
dataset.addValue(8.0, "Series 1", "Type 8");
dataset.addValue(5.0, "Series 2", "Type 1");
dataset.addValue(7.0, "Series 2", "Type 2");
dataset.addValue(6.0, "Series 2", "Type 3");
dataset.addValue(8.0, "Series 2", "Type 4");
dataset.addValue(4.0, "Series 2", "Type 5");
dataset.addValue(4.0, "Series 2", "Type 6");
dataset.addValue(2.0, "Series 2", "Type 7");
dataset.addValue(1.0, "Series 2", "Type 8");
dataset.addValue(4.0, "Series 3", "Type 1");
dataset.addValue(3.0, "Series 3", "Type 2");
dataset.addValue(2.0, "Series 3", "Type 3");
dataset.addValue(3.0, "Series 3", "Type 4");
dataset.addValue(6.0, "Series 3", "Type 5");
dataset.addValue(3.0, "Series 3", "Type 6");
dataset.addValue(4.0, "Series 3", "Type 7");
dataset.addValue(3.0, "Series 3", "Type 8");
return dataset;
}
/**
* Creates a chart.
*
* @param dataset the dataset.
*
* @return The chart.
*/
private static JFreeChart createChart(CategoryDataset dataset) {
JFreeChart chart = ChartFactory.createAreaChart(
"Area Chart", // chart title
"Category", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips
false // urls
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
chart.setBackgroundPaint(Color.white);
TextTitle subtitle = new TextTitle(
"An area chart demonstration. We use this subtitle as an "
+ "example of what happens when you get a really long title or "
+ "subtitle."
);
subtitle.setFont(new Font("SansSerif", Font.PLAIN, 12));
subtitle.setPosition(RectangleEdge.TOP);
subtitle.setPadding(
new RectangleInsets(UnitType.RELATIVE, 0.05, 0.05, 0.05, 0.05)
);
subtitle.setVerticalAlignment(VerticalAlignment.BOTTOM);
chart.addSubtitle(subtitle);
CategoryPlot plot = chart.getCategoryPlot();
plot.setForegroundAlpha(0.5f);
plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
plot.setBackgroundPaint(Color.lightGray);
plot.setDomainGridlinesVisible(true);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinesVisible(true);
plot.setRangeGridlinePaint(Color.white);
CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);
domainAxis.setLowerMargin(0.0);
domainAxis.setUpperMargin(0.0);
domainAxis.addCategoryLabelToolTip("Type 1", "The first type.");
domainAxis.addCategoryLabelToolTip("Type 2", "The second type.");
domainAxis.addCategoryLabelToolTip("Type 3", "The third type.");
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setLabelAngle(0 * Math.PI / 2.0);
// OPTIONAL CUSTOMISATION COMPLETED.
return chart;
}
/**
* Creates a panel for the demo (used by SuperDemo.java).
*
* @return A panel.
*/
public static JPanel createDemoPanel() {
JFreeChart chart = createChart(createDataset());
return new ChartPanel(chart);
}
/**
* Starting point for the demonstration application when it is run as
* a stand-alone application.
*
* @param args ignored.
*/
public static void main(String[] args) {
AreaChartDemo1 demo = new AreaChartDemo1("Area Chart Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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