?? bubbleplotdemo.java
字號:
/* ======================================
* JFreeChart : a free Java chart library
* ======================================
*
* Project Info: http://www.jfree.org/jfreechart/index.html
* Project Lead: David Gilbert (david.gilbert@object-refinery.com);
*
* (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
*
* 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.
*
* -------------------
* BubblePlotDemo.java
* -------------------
* (C) Copyright 2003, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: BubblePlotDemo.java,v 1.5 2003/06/30 12:14:34 mungady Exp $
*
* Changes
* -------
* 28-Jan-2003 : 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.axis.NumberAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.XYZDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A bubble chart demo.
*
* @author David Gilbert
*/
public class BubblePlotDemo extends ApplicationFrame {
/**
* A demonstration application showing a bubble chart.
*
* @param title the frame title.
*/
public BubblePlotDemo(String title) {
super(title);
XYZDataset data = new SampleXYZDataset();
JFreeChart chart = createChart(data);
ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
chartPanel.setVerticalZoom(true);
chartPanel.setHorizontalZoom(true);
setContentPane(chartPanel);
}
/**
* Creates a chart.
*
* @param dataset the dataset.
*
* @return The chart.
*/
private JFreeChart createChart(XYZDataset dataset) {
JFreeChart chart = ChartFactory.createBubbleChart(
"Bubble Plot Demo",
"X",
"Y",
dataset,
PlotOrientation.VERTICAL,
true,
true,
false
);
XYPlot plot = chart.getXYPlot();
plot.setForegroundAlpha(0.65f);
// increase the margins to account for the fact that the auto-range doesn't take into
// account the bubble size...
NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
domainAxis.setLowerMargin(0.15);
domainAxis.setUpperMargin(0.15);
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setLowerMargin(0.15);
rangeAxis.setUpperMargin(0.15);
return chart;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
BubblePlotDemo demo = new BubblePlotDemo("Bubble Plot Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -