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用jfreechart 画多轴图,现用版本是jfreechart-1.0.zip和jcommon-1.0.zip

摘要: 用jfreechart 画多轴图,现用版本是jfreechart-1.0.zip和jcommon-1.0.zip


遇到用jfreechart 画多轴图,我现在要在一个坐标上画两纵轴,位置一左一右,共享一个横轴,不知道怎么办?大家有没有好的办法,希望能把源代码贴出来下,在线等

你这个要求不能直接实现，因为平面图只能体现二维的数据。

但是你可以通过变通的方法实现，就是用jfreechart中的combined plot

package jfreechart.demo;

import java.awt.Dimension;
import java.awt.Font;
import java.util.Random;
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.NumberAxis;
import org.jfree.chart.labels.StandardCategoryToolTipGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.CombinedDomainCategoryPlot;
import org.jfree.chart.renderer.category.AbstractCategoryItemRenderer;
import org.jfree.chart.renderer.category.BarRenderer;
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;

public class CombinedCategoryPlotDemo1 extends ApplicationFrame
{
private static String[]category= new String[]
{ "Type1", "Type2", "Type3", "Type4",
"Type5", "Type6", "Typ7", "Type8" };

public CombinedCategoryPlotDemo1(String title)
{
super(title);
JFreeChart result = createChart(createSubPlot("line", 8, new String[]
{ "First", "Second" }, category), createSubPlot("bar", 20, new String[]
{ "Third", "Fourth" }, category));
ChartPanel chartPanel = new ChartPanel(result);
chartPanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartPanel);
}

private static CategoryDataset createDataset(int seed, String[] series,
String[] category)
{
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
Random r = new Random();
for (int i = 0; i < series.length; i++)
{
for (int j = 0; j < category.length; j++)
{
int tmp=r.nextInt(seed);
while(tmp==0)
tmp=r.nextInt(seed);
dataset.addValue(tmp, series[i], category[j]);
}
}
return dataset;
}

private static CategoryPlot createSubPlot(String type, int seed,
String[] series, String[] category)
{
CategoryDataset dataset = createDataset(seed, series, category);
AbstractCategoryItemRenderer renderer = null;
if ("line".equals(type))
renderer = new LineAndShapeRenderer();
else if ("bar".equals(type))
renderer = new BarRenderer();
NumberAxis rangeAxis = new NumberAxis("Value");
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
renderer
.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator());
CategoryPlot plot = new CategoryPlot(dataset, null, rangeAxis, renderer);
plot.setDomainGridlinesVisible(true);
return plot;
}

private static JFreeChart createChart(CategoryPlot plot1, CategoryPlot plot2)
{
CategoryAxis domainAxis = new CategoryAxis("Category");
CombinedDomainCategoryPlot plot = new CombinedDomainCategoryPlot(
domainAxis);
plot.add(plot1, 2);
plot.add(plot2, 1);
plot.setDomainGridlinesVisible(true);
JFreeChart chart = new JFreeChart("Combined Domain Category Plot Demo",
new Font("SansSerif", Font.BOLD, 12), plot, true);
return chart;
}

public static JPanel createDemoPanel()
{
JFreeChart chart = createChart(createSubPlot("line", 8, new String[]
{ "First", "Second" }, category), createSubPlot("bar", 20, new String[]
{ "Third", "Fourth" }, category));
return new ChartPanel(chart);
}

public static String getDemoDescription()
{
return "A Combined Domain Category Plot.";
}

public static void main(String[] args)
{
CombinedCategoryPlotDemo1 demo = new CombinedCategoryPlotDemo1(
"Combined Category Plot Demo 1");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}







另外一个
package jfreechart.demo;

import java.awt.Dimension;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Random;
import javax.swing.JPanel;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.labels.StandardXYToolTipGenerator;
import org.jfree.chart.plot.CombinedRangeXYPlot;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.chart.renderer.xy.XYBarRenderer;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.data.time.Day;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.XYDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class CombinedXYPlotDemo2 extends ApplicationFrame
{
public CombinedXYPlotDemo2(String title)
{
super(title);
JFreeChart chart = createChart();
ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartPanel);
}

public static JPanel createDemoPanel()
{
JFreeChart chart = createChart();
return new ChartPanel(chart);
}

public static String getDemoDescription()
{
return "A Combined range XY Plot.";
}

public static void main(String[] args)
{
CombinedXYPlotDemo2 demo = new CombinedXYPlotDemo2(
"Combined XY Plot Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}

private static JFreeChart createChart()
{
CombinedRangeXYPlot plot = new CombinedRangeXYPlot(new NumberAxis(
"Value"));
plot.add(createSubPlot("bar"), 1);
plot.add(createSubPlot("line"), 1);
return new JFreeChart("Combined (Range) XY Plot",
JFreeChart.DEFAULT_TITLE_FONT, plot, true);
}

private static XYPlot createSubPlot(String type)
{
XYItemRenderer renderer = null;
XYDataset dataset = createDataset(type);
if ("bar".equals(type))
renderer = new XYBarRenderer(0.20);
else if ("line".equals(type))
renderer = new StandardXYItemRenderer();
renderer
.setToolTipGenerator(new StandardXYToolTipGenerator("{2}",
new SimpleDateFormat("d-MM-yyyy"), new DecimalFormat(
"0,000.0")));
XYPlot subPlot = new XYPlot(dataset, new DateAxis("Date"), null,
renderer);
return subPlot;
}

private static XYDataset createDataset(String type)
{
TimeSeries s1 = new TimeSeries("L&G", Day.class);
Random r = new Random();
s1.add(new Day(1, 9, 2000), r.nextInt(2000));
s1.add(new Day(2, 9, 2000), r.nextInt(2000));
s1.add(new Day(3, 9, 2000), r.nextInt(2000));
s1.add(new Day(4, 9, 2000), r.nextInt(2000));
s1.add(new Day(5, 9, 2000), r.nextInt(2000));
s1.add(new Day(6, 9, 2000), r.nextInt(2000));
s1.add(new Day(7, 9, 2000), r.nextInt(2000));
s1.add(new Day(8, 9, 2000), r.nextInt(2000));
s1.add(new Day(9, 9, 2000), r.nextInt(2000));
s1.add(new Day(10, 9, 2000), r.nextInt(2000));
s1.add(new Day(11, 9, 2000), r.nextInt(2000));
s1.add(new Day(12, 9, 2000), r.nextInt(2000));
s1.add(new Day(13, 9, 2000), r.nextInt(2000));
s1.add(new Day(14, 9, 2000), r.nextInt(2000));
s1.add(new Day(15, 9, 2000), r.nextInt(2000));
s1.add(new Day(16, 9, 2000), r.nextInt(2000));
s1.add(new Day(17, 9, 2000), r.nextInt(2000));
s1.add(new Day(18, 9, 2000), r.nextInt(2000));
s1.add(new Day(19, 9, 2000), r.nextInt(2000));
s1.add(new Day(20, 9, 2000), r.nextInt(2000));
s1.add(new Day(21, 9, 2000), r.nextInt(2000));
s1.add(new Day(22, 9, 2000), r.nextInt(2000));
s1.add(new Day(23, 9, 2000), r.nextInt(2000));
s1.add(new Day(24, 9, 2000), r.nextInt(2000));
s1.add(new Day(25, 9, 2000), r.nextInt(2000));
s1.add(new Day(26, 9, 2000), r.nextInt(2000));
s1.add(new Day(27, 9, 2000), r.nextInt(2000));
s1.add(new Day(28, 9, 2000), r.nextInt(2000));
s1.add(new Day(29, 9, 2000), r.nextInt(2000));
s1.add(new Day(30, 9, 2000), r.nextInt(2000));
TimeSeriesCollection dataset = new TimeSeriesCollection();
dataset.addSeries(s1);
return dataset;
}
}


我这两天一直在弄这个问题,主要是才接触了3天,项目上需要这个,我也是一个刚踏进软件行业的新手,实在是弄不懂,听说这不错才来这试试发帖的,一来就遇到高手了,真是非常感谢,我先试一下兄台的程序哈

兄台的这个答案对我来说不是很完美啊
我看了jfreechart的官方网站,它上面就有我说的例子,平面坐标轴上有两个横轴


把他例子的类下载下来就可以了!你在google上搜索类名嘛,肯定有的!

我明白你的意思了。

下面的这个例子应该能满足你的要求

package jfreechart.demo;

import java.awt.Color;
import java.awt.Dimension;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
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.StandardCategoryToolTipGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.DatasetRenderingOrder;
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;

public class DualAxisDemo extends ApplicationFrame
{
public DualAxisDemo(final String title)
{
super(title);
final CategoryDataset dataset1 = createDataset1();
final JFreeChart chart = ChartFactory.createBarChart("Dual Axis Chart",
"Category", "Value", dataset1, PlotOrientation.VERTICAL, true,
true, false);
chart.setBackgroundPaint(Color.white);
final CategoryPlot plot = chart.getCategoryPlot();
plot.setBackgroundPaint(new Color(0xEE, 0xEE, 0xFF));
plot.setDomainAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
final CategoryDataset dataset2 = createDataset2();
plot.setDataset(1, dataset2);
plot.mapDatasetToRangeAxis(1, 1);
final CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setCategoryLabelPositions(CategoryLabelPositions.DOWN_45);
final ValueAxis axis2 = new NumberAxis("Secondary");
plot.setRangeAxis(1, axis2);
final LineAndShapeRenderer renderer2 = new LineAndShapeRenderer();
renderer2.setToolTipGenerator(new StandardCategoryToolTipGenerator());
plot.setRenderer(1, renderer2);
plot.setDatasetRenderingOrder(DatasetRenderingOrder.REVERSE);
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartPanel);
}

private CategoryDataset createDataset1()
{
// row keys...
final String series1 = "First";
final String series2 = "Second";
final String series3 = "Third";
// column keys...
final String category1 = "Category 1";
final String category2 = "Category 2";
final String category3 = "Category 3";
final String category4 = "Category 4";
final String category5 = "Category 5";
final String category6 = "Category 6";
final String category7 = "Category 7";
final String category8 = "Category 8";
// create the dataset...
final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(1.0, series1, category1);
dataset.addValue(4.0, series1, category2);
dataset.addValue(3.0, series1, category3);
dataset.addValue(5.0, series1, category4);
dataset.addValue(5.0, series1, category5);
dataset.addValue(7.0, series1, category6);
dataset.addValue(7.0, series1, category7);
dataset.addValue(8.0, series1, category8);
dataset.addValue(5.0, series2, category1);
dataset.addValue(7.0, series2, category2);
dataset.addValue(6.0, series2, category3);
dataset.addValue(8.0, series2, category4);
dataset.addValue(4.0, series2, category5);
dataset.addValue(4.0, series2, category6);
dataset.addValue(2.0, series2, category7);
dataset.addValue(1.0, series2, category8);
dataset.addValue(4.0, series3, category1);
dataset.addValue(3.0, series3, category2);
dataset.addValue(2.0, series3, category3);
dataset.addValue(3.0, series3, category4);
dataset.addValue(6.0, series3, category5);
dataset.addValue(3.0, series3, category6);
dataset.addValue(4.0, series3, category7);
dataset.addValue(3.0, series3, category8);
return dataset;
}

private CategoryDataset createDataset2()
{
// row keys...
final String series1 = "Fourth";
// column keys...
final String category1 = "Category 1";
final String category2 = "Category 2";
final String category3 = "Category 3";
final String category4 = "Category 4";
final String category5 = "Category 5";
final String category6 = "Category 6";
final String category7 = "Category 7";
final String category8 = "Category 8";
// create the dataset...
final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(15.0, series1, category1);
dataset.addValue(24.0, series1, category2);
dataset.addValue(31.0, series1, category3);
dataset.addValue(25.0, series1, category4);
dataset.addValue(56.0, series1, category5);
dataset.addValue(37.0, series1, category6);
dataset.addValue(77.0, series1, category7);
dataset.addValue(18.0, series1, category8);
return dataset;
}

public static void main(final String[] args)
{
final DualAxisDemo demo = new DualAxisDemo("Dual Axis Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}


到网上去找份demo的源码吧，否则够你玩的……留邮箱我可以发给你

楼上的，你的demo源码是jfree chart developer guide 的？


是哪个版本的？

给我一份看看，imyf_liang@163.com

(to)donliue(donliue):
兄台有demo的源码吗?
可不可以也给我发一份啊
谢谢了啊 oranger507@yahoo.com.cn
另:谢谢imA(男的不会，会的不男)兄不厌其烦对我的帮助

0.9.X的，还可以看看


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