/** * 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) { LineChartDemo1 demo = new LineChartDemo1("Line Chart Demo"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); }}
// 通过查询数据库中的数据来设置chart xymodel.addValue("2001", new Integer(20), new Integer(120)); xymodel.addValue("2001", new Integer(40), new Integer(135)); xymodel.addValue("2001", new Integer(60), new Integer(140)); xymodel.addValue("2001", new Integer(80), new Integer(160)); xymodel.addValue("2002", new Integer(80), new Integer(120)); xymodel.addValue("2002", new Integer(60), new Integer(135)); xymodel.addValue("2002", new Integer(40), new Integer(140)); xymodel.addValue("2002", new Integer(10), new Integer(160)); xymodel.addValue("2003", new Integer(30), new Integer(120)); xymodel.addValue("2003", new Integer(15), new Integer(135)); xymodel.addValue("2003", new Integer(20), new Integer(140)); xymodel.addValue("2003", new Integer(90), new Integer(130)); chart.setModel(xymodel); // 要设置类型为线形 chart.setWidth("350px"); chart.setHeight("200px"); chart.setType("time_series"); chart.setThreeD(false); chart.setTitle("line Chart"); }这个是用ZK来写的,
/* -------------------
* LineChartDemo1.java
* -------------------
* (C) Copyright 2002-2005, by Object Refinery Limited.
*
*/package demo;import java.awt.Color;
import java.awt.Dimension;
import javax.swing.JPanel;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.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.category.CategoryDataset;
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 line chart using
* data from a {@link CategoryDataset}.
*/
public class LineChartDemo1 extends ApplicationFrame { /**
* Creates a new demo.
*
* @param title the frame title.
*/
public LineChartDemo1(String title) {
super(title);
JPanel chartPanel = createDemoPanel();
chartPanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartPanel);
} /**
* Creates a sample dataset.
*
* @return The dataset.
*/
private static CategoryDataset createDataset() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(212, "Classes", "JDK 1.0");
dataset.addValue(504, "Classes", "JDK 1.1");
dataset.addValue(1520, "Classes", "SDK 1.2");
dataset.addValue(1842, "Classes", "SDK 1.3");
dataset.addValue(2991, "Classes", "SDK 1.4");
return dataset;
}
/**
* Creates a sample chart.
*
* @param dataset a dataset.
*
* @return The chart.
*/
private static JFreeChart createChart(CategoryDataset dataset) {
// create the chart...
JFreeChart chart = ChartFactory.createLineChart(
"Java Standard Class Library", // chart title
"Release", // domain axis label
"Class Count", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
false, // include legend
true, // tooltips
false // urls
);
CategoryPlot plot = (CategoryPlot) chart.getPlot(); // customise the range axis...
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
//坐标轴上值的反转!!!!
rangeAxis.setInverted(true);
// customise the renderer...
LineAndShapeRenderer renderer
= (LineAndShapeRenderer) plot.getRenderer();
renderer.setShapesVisible(true);
renderer.setDrawOutlines(true);
renderer.setUseFillPaint(true);
renderer.setFillPaint(Color.white); 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) {
LineChartDemo1 demo = new LineChartDemo1("Line Chart Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}}
xymodel.addValue("2001", new Integer(40), new Integer(135));
xymodel.addValue("2001", new Integer(60), new Integer(140));
xymodel.addValue("2001", new Integer(80), new Integer(160)); xymodel.addValue("2002", new Integer(80), new Integer(120));
xymodel.addValue("2002", new Integer(60), new Integer(135));
xymodel.addValue("2002", new Integer(40), new Integer(140));
xymodel.addValue("2002", new Integer(10), new Integer(160)); xymodel.addValue("2003", new Integer(30), new Integer(120));
xymodel.addValue("2003", new Integer(15), new Integer(135));
xymodel.addValue("2003", new Integer(20), new Integer(140));
xymodel.addValue("2003", new Integer(90), new Integer(130)); chart.setModel(xymodel);
// 要设置类型为线形
chart.setWidth("350px");
chart.setHeight("200px");
chart.setType("time_series");
chart.setThreeD(false);
chart.setTitle("line Chart");
}这个是用ZK来写的,