в 18:01, 31 мая 2010

2010-05-31T18:01:45Z

Новая страница

== A pie chart comparing 2 Dataset (green increase, red decrease) ==

== A pie chart showing one section exploded ==

== A pie chart showing percentages on the category labels ==

== Chart2D: Pie Chart ==

== Chart: Simple Pie Chart ==

== JCharts: Pie Chart ==

== JFreeChart: Pie Chart Demo 1 ==



<source lang="java">
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------------
* PieChartDemo1.java
* ------------------
* (C) Copyright 2003-2005, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): ;
*
* $Id: PieChartDemo1.java,v 1.2 2005/03/28 19:38:45 mungady Exp $
*
* Changes
* -------
* 09-Mar-2005 : Version 1, copied from the demo collection that ships with
* the JFreeChart Developer Guide (DG);
*
*/
package org.jfree.chart.demo;
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.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A simple demonstration application showing how to create a pie chart using
* data from a {@link DefaultPieDataset}.
*/
public class PieChartDemo1 extends ApplicationFrame {
/**
* Default constructor.
*
* @param title the frame title.
*/
public PieChartDemo1(String title) {
super(title);
setContentPane(createDemoPanel());
}
/**
* Creates a sample dataset.
*
* @return A sample dataset.
*/
private static PieDataset createDataset() {
DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("One", new Double(43.2));
dataset.setValue("Two", new Double(10.0));
dataset.setValue("Three", new Double(27.5));
dataset.setValue("Four", new Double(17.5));
dataset.setValue("Five", new Double(11.0));
dataset.setValue("Six", new Double(19.4));
return dataset;
}

/**
* Creates a chart.
*
* @param dataset the dataset.
*
* @return A chart.
*/
private static JFreeChart createChart(PieDataset dataset) {

JFreeChart chart = ChartFactory.createPieChart(
"Pie Chart Demo 1", // chart title
dataset, // data
true, // include legend
true,
false
);
PiePlot plot = (PiePlot) chart.getPlot();
plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12));
plot.setNoDataMessage("No data available");
plot.setCircular(false);
plot.setLabelGap(0.02);
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.
*
* @param args ignored.
*/
public static void main(String[] args) {
PieChartDemo1 demo = new PieChartDemo1("Pie Chart Demo 1");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}

</source>



== JFreeChart: Pie Chart Demo 2 ==



<source lang="java">

/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------------
* PieChartDemo2.java
* ------------------
* (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: PieChartDemo2.java,v 1.13 2004/04/26 19:12:00 taqua Exp $
*
* Changes
* -------
* 05-Feb-2003 : Version 1 (DG);
* 10-Mar-2004 : Updated for rewritten pie chart classes (DG);
*
*/
package org.jfree.chart.demo;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A simple demonstration application showing how to create a pie chart using data from a
* {@link DefaultPieDataset}. This demo also shows an "exploded" section in the chart.
*
*/
public class PieChartDemo2 extends ApplicationFrame {
/**
* Default constructor.
*
* @param title the frame title.
*/
public PieChartDemo2(final String title) {
super(title);
final PieDataset dataset = createDataset();
final JFreeChart chart = createChart(dataset);
// add the chart to a panel...
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
// ****************************************************************************
// * JFREECHART DEVELOPER GUIDE *
// * The JFreeChart Developer Guide, written by David Gilbert, is available *
// * to purchase from Object Refinery Limited: *
// * *
// * http://www.object-refinery.ru/jfreechart/guide.html *
// * *
// * Sales are used to provide funding for the JFreeChart project - please *
// * support us so that we can continue developing free software. *
// ****************************************************************************

/**
* Creates a sample dataset.
*
* @return a sample dataset.
*/
private PieDataset createDataset() {
final DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("One", new Double(43.2));
dataset.setValue("Two", new Double(10.0));
dataset.setValue("Three", new Double(27.5));
dataset.setValue("Four", new Double(17.5));
dataset.setValue("Five", new Double(11.0));
dataset.setValue("Six", new Double(19.4));
return dataset;
}

/**
* Creates a sample chart.
*
* @param dataset the dataset.
*
* @return a chart.
*/
private JFreeChart createChart(final PieDataset dataset) {
final JFreeChart chart = ChartFactory.createPieChart(
"Pie Chart Demo 2", // chart title
dataset, // dataset
true, // include legend
true,
false
);
final PiePlot plot = (PiePlot) chart.getPlot();
plot.setNoDataMessage("No data available");
plot.setExplodePercent(1, 0.30);
return chart;
}

/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final PieChartDemo2 demo = new PieChartDemo2("Pie Chart Demo 2");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}

</source>



== JFreeChart: Pie Chart Demo 4 ==



<source lang="java">

/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------------
* PieChartDemo4.java
* ------------------
* (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: PieChartDemo4.java,v 1.21 2004/06/03 15:05:10 mungady Exp $
*
* Changes
* -------
* 11-Feb-2003 : Version 1 (DG);
*
*/
package org.jfree.chart.demo;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.NumberFormat;
import javax.swing.Timer;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.labels.StandardPieItemLabelGenerator;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.util.Log;
import org.jfree.util.PrintStreamLogTarget;
/**
* A simple demonstration application showing how to create a pie chart using data from a
* {@link DefaultPieDataset}. This chart has a lot of labels and rotates, so it is useful for
* testing the label distribution algorithm.
*/
public class PieChartDemo4 extends ApplicationFrame {
/**
* Default constructor.
*
* @param title the frame title.
*/
public PieChartDemo4(final String title) {
super(title);
final PieDataset dataset = createDataset(14);
// create the chart...
final JFreeChart chart = ChartFactory.createPieChart(
"Pie Chart Demo 4", // chart title
dataset, // dataset
false, // include legend
true,
false
);
// set the background color for the chart...
chart.setBackgroundPaint(new Color(222, 222, 255));
final PiePlot plot = (PiePlot) chart.getPlot();
plot.setBackgroundPaint(Color.white);
plot.setCircular(true);
plot.setLabelGenerator(new StandardPieItemLabelGenerator(
"{0} = {2}", NumberFormat.getNumberInstance(), NumberFormat.getPercentInstance()
));
plot.setNoDataMessage("No data available");
// add the chart to a panel...
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);

final Rotator rotator = new Rotator(plot);
rotator.start();
}
/**
* Creates a sample dataset.
*
* @param sections the number of sections.
*
* @return A sample dataset.
*/
private PieDataset createDataset(final int sections) {
final DefaultPieDataset result = new DefaultPieDataset();
for (int i = 0; i < sections; i++) {
final double value = 100.0 * Math.random();
result.setValue("Section " + i, value);
}
return result;
}

// ****************************************************************************
// * JFREECHART DEVELOPER GUIDE *
// * The JFreeChart Developer Guide, written by David Gilbert, is available *
// * to purchase from Object Refinery Limited: *
// * *
// * http://www.object-refinery.ru/jfreechart/guide.html *
// * *
// * Sales are used to provide funding for the JFreeChart project - please *
// * support us so that we can continue developing free software. *
// ****************************************************************************

/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
Log.getInstance().addTarget(new PrintStreamLogTarget());
final PieChartDemo4 demo = new PieChartDemo4("Pie Chart Demo 4");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
/**
* The rotator.
*
*/
static class Rotator extends Timer implements ActionListener {
/** The plot. */
private PiePlot plot;
/** The angle. */
private int angle = 270;
/**
* Constructor.
*
* @param plot the plot.
*/
Rotator(final PiePlot plot) {
super(100, null);
this.plot = plot;
addActionListener(this);
}
/**
* Modifies the starting angle.
*
* @param event the action event.
*/
public void actionPerformed(final ActionEvent event) {
this.plot.setStartAngle(angle);
this.angle = this.angle + 1;
if (this.angle == 360) {
this.angle = 0;
}
}
}
}

</source>



== JFreeChart: Pie Chart Demo 5 ==



<source lang="java">
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------------
* PieChartDemo5.java
* ------------------
* (C) Copyright 2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: PieChartDemo5.java,v 1.2 2004/04/26 19:12:00 taqua Exp $
*
* Changes
* -------
* 31-Mar-2004 : Version 1 (DG);
*
*/
package org.jfree.chart.demo;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A pie chart with no section labels.
*/
public class PieChartDemo5 extends ApplicationFrame {
/**
* Creates a new demo instance.
*
* @param title the frame title.
*/
public PieChartDemo5(final String title) {
super(title);
final PieDataset dataset = createDataset();
final JFreeChart chart = createChart(dataset);
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Creates a sample dataset.
*
* @return a sample dataset.
*/
private PieDataset createDataset() {
final DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("One", new Double(43.2));
dataset.setValue("Two", new Double(10.0));
dataset.setValue("Three", new Double(27.5));
dataset.setValue("Four", new Double(17.5));
dataset.setValue("Five", new Double(11.0));
dataset.setValue("Six", new Double(19.4));
return dataset;
}

// ****************************************************************************
// * JFREECHART DEVELOPER GUIDE *
// * The JFreeChart Developer Guide, written by David Gilbert, is available *
// * to purchase from Object Refinery Limited: *
// * *
// * http://www.object-refinery.ru/jfreechart/guide.html *
// * *
// * Sales are used to provide funding for the JFreeChart project - please *
// * support us so that we can continue developing free software. *
// ****************************************************************************

/**
* Creates a chart.
*
* @param dataset the dataset.
*
* @return a chart.
*/
private JFreeChart createChart(final PieDataset dataset) {

final JFreeChart chart = ChartFactory.createPieChart(
"Pie Chart Demo 5", // chart title
dataset, // data
false, // include legend
true,
false
);
final PiePlot plot = (PiePlot) chart.getPlot();
plot.setInteriorGap(0.0);
plot.setLabelGenerator(null);
return chart;

}

/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final PieChartDemo5 demo = new PieChartDemo5("Pie Chart Demo 5");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}

</source>



== JFreeChart: Pie Chart Demo 6 ==



<source lang="java">
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------------
* PieChartDemo6.java
* ------------------
* (C) Copyright 2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: PieChartDemo6.java,v 1.3 2004/04/26 19:12:00 taqua Exp $
*
* Changes
* -------
* 31-Mar-2004 : Version 1 (DG);
*
*/
package org.jfree.chart.demo;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.labels.PieSectionLabelGenerator;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A pie chart with a custom label generator.
*/
public class PieChartDemo6 extends ApplicationFrame {
/**
* Creates a new demo instance.
*
* @param title the frame title.
*/
public PieChartDemo6(final String title) {
super(title);
final PieDataset dataset = createDataset();
final JFreeChart chart = createChart(dataset);
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Creates a sample dataset.
*
* @return a sample dataset.
*/
private PieDataset createDataset() {
final DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("One", new Double(43.2));
dataset.setValue("Two", new Double(10.0));
dataset.setValue("Three", new Double(27.5));
dataset.setValue("Four", new Double(17.5));
dataset.setValue("Five", new Double(11.0));
dataset.setValue("Six", new Double(19.4));
return dataset;
}

// ****************************************************************************
// * JFREECHART DEVELOPER GUIDE *
// * The JFreeChart Developer Guide, written by David Gilbert, is available *
// * to purchase from Object Refinery Limited: *
// * *
// * http://www.object-refinery.ru/jfreechart/guide.html *
// * *
// * Sales are used to provide funding for the JFreeChart project - please *
// * support us so that we can continue developing free software. *
// ****************************************************************************

/**
* Creates a chart.
*
* @param dataset the dataset.
*
* @return a chart.
*/
private JFreeChart createChart(final PieDataset dataset) {

final JFreeChart chart = ChartFactory.createPieChart(
"Pie Chart Demo 6", // chart title
dataset, // data
false, // include legend
true,
false
);
final PiePlot plot = (PiePlot) chart.getPlot();
plot.setLabelGenerator(new CustomLabelGenerator());
return chart;

}

/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final PieChartDemo6 demo = new PieChartDemo6("Pie Chart Demo 6");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}

/**
* A custom label generator (returns null for one item as a test).
*/
static class CustomLabelGenerator implements PieSectionLabelGenerator {

/**
* Generates a label for a pie section.
*
* @param dataset the dataset (<code>null</code> not permitted).
* @param key the section key (<code>null</code> not permitted).
*
* @return the label (possibly <code>null</code>).
*/
public String generateSectionLabel(final PieDataset dataset, final Comparable key) {
String result = null;
if (dataset != null) {
if (!key.equals("Two")) {
result = key.toString();
}
}
return result;
}

}
}

</source>



== JFreeChart: Pie Chart Demo 7 ==



<source lang="java">

/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------------
* PieChartDemo7.java
* ------------------
* (C) Copyright 2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: PieChartDemo7.java,v 1.1 2004/05/26 13:02:03 mungady Exp $
*
* Changes
* -------
* 25-May-2004 : Version 1 (DG);
*
*/
package org.jfree.chart.demo;
import java.awt.Dimension;
import java.awt.GridLayout;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A demo showing four pie charts.
*/
public class PieChartDemo7 extends ApplicationFrame {
/**
* Creates a new demo instance.
*
* @param title the frame title.
*/
public PieChartDemo7(String title) {
super(title);
JPanel panel = new JPanel(new GridLayout(2, 2));
DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("Section 1", 23.3);
dataset.setValue("Section 2", 56.5);
dataset.setValue("Section 3", 43.3);
dataset.setValue("Section 4", 11.1);

JFreeChart chart1 = ChartFactory.createPieChart("Chart 1", dataset, false, false, false);
JFreeChart chart2 = ChartFactory.createPieChart("Chart 2", dataset, false, false, false);
PiePlot plot2 = (PiePlot) chart2.getPlot();
plot2.setCircular(false);
JFreeChart chart3 = ChartFactory.createPieChart3D("Chart 3", dataset, false, false, false);
PiePlot3D plot3 = (PiePlot3D) chart3.getPlot();
plot3.setForegroundAlpha(0.6f);
plot3.setCircular(true);
JFreeChart chart4 = ChartFactory.createPieChart3D("Chart 4", dataset, false, false, false);
PiePlot3D plot4 = (PiePlot3D) chart4.getPlot();
plot4.setForegroundAlpha(0.6f);
panel.add(new ChartPanel(chart1));
panel.add(new ChartPanel(chart2));
panel.add(new ChartPanel(chart3));
panel.add(new ChartPanel(chart4));
panel.setPreferredSize(new Dimension(800, 600));
setContentPane(panel);
}
/**
* The starting point for the demo.
*
* @param args ignored.
*/
public static void main(String[] args) {
PieChartDemo7 demo = new PieChartDemo7("Pie Chart Demo 7");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}

</source>

Java/Chart/Pie Chart - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010

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