今天要用到jfreechart的时候到网上看自己的demo才发现，我原来的demo不知什么时候不小心删掉了！我郁闷！不过还好，在我的备份盘中又找到了一份备份资料。现在再重新更新上来！
背景图片为2006110821482378503.jpg放入d盘。
72729572
一、柱图demo
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Image;
import java.io.IOException;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import javax.imageio.ImageIO;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.annotations.CategoryAnnotation;
import org.jfree.chart.annotations.XYTextAnnotation;
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.NumberTickUnit;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.block.BlockContainer;
import org.jfree.chart.block.BorderArrangement;
import org.jfree.chart.block.LabelBlock;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.IntervalMarker;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.title.LegendTitle;
import org.jfree.chart.title.TextTitle;
import org.jfree.chart.urls.StandardCategoryURLGenerator;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.HorizontalAlignment;
import org.jfree.ui.Layer;
import org.jfree.ui.RectangleAnchor;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.RectangleInsets;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.TextAnchor;
import org.jfree.ui.VerticalAlignment;
/**
* 生成一个带有多组数据的柱图（最基础图形）
*
*/
public class BarChartDemo1 extends ApplicationFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* 生成柱图
*
* @param title 大标题.
*/
public BarChartDemo1(String title) {
super(title);
CategoryDataset dataset = createDataset();
CategoryDataset dataset1 = createDataset1();
JFreeChart chart = createChart(title,dataset,dataset1);
ChartPanel chartPanel = new ChartPanel(chart, false);
chartPanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* 返回条形图所需要的数据（CategoryDataset基础数据类型）.
*
* @return The dataset.
*/
private static CategoryDataset createDataset() {
// 行数据名称
String series1 = "名称";
String series2 = "Second";
String series3 = "Third";
// 栏数据名称
String category1 = "栏数据";
String category2 = "Category 2";
String category3 = "Category 3";
String category4 = "Category 4";
String category5 = "Category 5";
// 详细数据
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(1.0, series1, " ");
dataset.addValue(4.0, series1, "");
dataset.addValue(3.0, series1, category3);
dataset.addValue(5.0, series1, category4);
dataset.addValue(-5.0, series1, category5);
dataset.addValue(5.0, series2, category1);
dataset.addValue(7.0, series2, category1);
dataset.addValue(6.0, series2, category3);
dataset.addValue(8.0, series2, category4);
dataset.addValue(4.0, series2, category5);
dataset.addValue(4.0, series3, category1);
dataset.addValue(3.0, series3, category1);
dataset.addValue(2.0, series3, category3);
dataset.addValue(3.0, series3, category4);
dataset.addValue(6.0, series3, category5);
return dataset;
}
/**
* 返回条形图所需要的数据（CategoryDataset基础数据类型）.
*
* @return The dataset.
*/
private static CategoryDataset createDataset1() {
// 行数据名称
String series1 = "名称1";
String series2 = "Second1";
String series3 = "Third1";
// 栏数据名称
String category1 = "栏数据";
String category2 = "Category 2";
String category3 = "Category 3";
String category4 = "Category 4";
String category5 = "Category 5";
// 详细数据
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(11.0, series1, category1);
dataset.addValue(14.0, series1, category1);
dataset.addValue(13.0, series1, category3);
dataset.addValue(15.0, series1, category4);
dataset.addValue(-15.0, series1, category5);
dataset.addValue(15.0, series2, category1);
dataset.addValue(17.0, series2, category2);
dataset.addValue(16.0, series2, category3);
dataset.addValue(18.0, series2, category4);
dataset.addValue(14.0, series2, category5);
dataset.addValue(14.0, series3, category1);
dataset.addValue(13.0, series3, category1);
dataset.addValue(12.0, series3, category3);
dataset.addValue(13.0, series3, category4);
dataset.addValue(16.0, series3, category5);
return dataset;
}
/**
* 生成一个柱图图片
*
* @param dataset the dataset.
*
* @return The chart.
*/
private static JFreeChart createChart(String title,CategoryDataset dataset,CategoryDataset dataset1) {
// create the chart...
JFreeChart chart = ChartFactory.createBarChart(
title, // chart title
"Category", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // 生成图片方向
true, // 是否显示图例
true, // 是否显示注释
false // URLs?
);
//总图片设置
//设置背景颜色的图表
GradientPaint gp = new GradientPaint(0.0f, 0.0f, Color.blue,
500.0f, 270.0f, new Color(0, 0, 64));
gp = null;
chart.setBackgroundPaint(gp);
//设置图片背景图片
if(gp == null){
Image image = null;
try {
image = ImageIO.read(new java.io.File("D:\\2006110821482378503.jpg"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
chart.setBackgroundImage(image);
}
//设置图片的边框是否显示
chart.setBorderVisible(true);
//设置背景图片透明度（0.0～1.0）
chart.setBackgroundImageAlpha(1.0f);
//是否字体去锯齿
chart.setAntiAlias(true);
//主标题字体设置
TextTitle text = chart.getTitle();
Font font = new Font("黑体",Font.BOLD,20);
text.setFont(font);
chart.setTitle(text);
chart.addSubtitle(new TextTitle( "Source: http://thomas0988.iteye.com/", new Font("Dialog", Font.ITALIC, 10)));
//主图片主样式实例化
CategoryPlot plot=chart.getCategoryPlot();
//设置图片的背景颜色
plot.setBackgroundPaint(Color.lightGray);
//设置图片的透明度（0.0~1.0）
plot.setBackgroundAlpha(1.0f);
//设置x轴刻度线颜色
plot.setDomainGridlinePaint(Color.white);
plot.setDomainGridlinesVisible(true);
//设置y轴刻度线颜色
plot.setRangeGridlinePaint(Color.white);
plot.setRangeGridlinesVisible(true);
//设置柱子的透明度
plot.setForegroundAlpha(0.9f);
//设置x轴显示位置
plot.setDomainAxisLocation(AxisLocation.TOP_OR_LEFT);
//设置y轴显示位置
plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
//设置横纵坐标与axises之间的间距
plot.setAxisOffset(new RectangleInsets(10.0, 10.0, 10.0, 10.0));
//建构单个特殊间隔标记
IntervalMarker target = new IntervalMarker(4.5, 7.5);
//目标范围名称
target.setLabel("Target Range 目标范围");
//设置字体
target.setLabelFont(new Font("SansSerif", Font.ITALIC, 11));
//区域名称在边界位置
target.setLabelAnchor(RectangleAnchor.CENTER);
//区域名称的起始位置
target.setLabelTextAnchor(TextAnchor.CENTER_RIGHT);
//区域名称的颜色
target.setPaint(new Color(222, 222, 255, 128));
//区域名称的透明度
target.setAlpha(1.0f);
//使区域标记有效
plot.addRangeMarker(target, Layer.FOREGROUND);
//bar实例化
BarRenderer renderer = (BarRenderer) plot.getRenderer();
//设置条形图上bar是否显示背景阴影
renderer.setDrawBarOutline(false);
//设置bar最大宽度百分比
renderer.setMaximumBarWidth(0.10D);
//设置bar显示所有value
//renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
//renderer.setBaseItemLabelsVisible(true);
//实例化栏数据第几个bar显示value
renderer.setSeriesItemLabelGenerator(0,new StandardCategoryItemLabelGenerator("{2}辆", NumberFormat.getNumberInstance()) );
renderer.setSeriesItemLabelFont(0, new Font("黑体",Font.BOLD,20), true);
//使该设置有效
renderer.setSeriesItemLabelsVisible(0,true);
// 手动设置条形图上bar设置颜色
GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue,
0.0f, 0.0f, new Color(0, 0, 64));
GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.red,
0.0f, 0.0f, new Color(64, 0, 0));
GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.green,
0.0f, 0.0f, new Color(0, 64, 0));
renderer.setSeriesPaint(0, gp0);
renderer.setSeriesPaint(1, gp1);
renderer.setSeriesPaint(2, gp2);
//bar间的宽度
renderer.setItemMargin(0);
//bar阴影
renderer.setShadowVisible(false);
//使设置生效
renderer.setBaseItemLabelsVisible(true);
//生成url连接（没有试验成功, 好像只有在jsp页面才ok，在jsp里面有个简单demo，做数据挖掘研究用，还没有改善）
renderer.setBaseItemURLGenerator(new StandardCategoryURLGenerator("http://www.yahoo.com.cn"));
Font font1 = new Font("SansSerif", Font.BOLD, 12);
// 添加在线用户注释
// XYTextAnnotation userAnn = new XYTextAnnotation(" 峰值时间:",10d,10d);
// userAnn.setFont(font1);
// userAnn.setTextAnchor(TextAnchor.HALF_ASCENT_LEFT);
// plot.addAnnotation((CategoryAnnotation) userAnn,true);
//设置y轴区域颜色
plot.addRangeMarker(createIntervalMarker(0, 2, Color.GREEN, "0~2"), Layer.BACKGROUND);
plot.addRangeMarker(createIntervalMarker(2, 4, Color.BLACK, "2~4"), Layer.BACKGROUND);
plot.addRangeMarker(createIntervalMarker(4, 6, Color.PINK, "4~6"), Layer.FOREGROUND);
plot.addRangeMarker(createIntervalMarker(6, 8, Color.BLUE, "6~8"), Layer.BACKGROUND);
plot.addRangeMarker(createIntervalMarker(8, 10, Color.YELLOW, "8~10"), Layer.BACKGROUND);
//x坐标轴实例化
CategoryAxis xaxis = plot.getDomainAxis();
//坐标轴标尺值字体
xaxis.setTickLabelFont(new Font("Serif",Font.CENTER_BASELINE,13));
xaxis.setLabelFont(new Font("Serif",Font.CENTER_BASELINE,20));
//设置栏目名称的旋转角度
xaxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0));
//设置栏数据距离百分比（0.0~1.0）
xaxis.setCategoryMargin(0.1);
//设置距离图片左端距离,参数为图片的百分比
xaxis.setLowerMargin(0.05);
//设置距离图片右端距离
xaxis.setUpperMargin(0.05);
//y坐标轴实例化
ValueAxis yaxis = plot.getRangeAxis();
//坐标轴标尺值字体
yaxis.setTickLabelFont(new Font("Serif",Font.CENTER_BASELINE,13));
yaxis.setLabelFont(new Font("Serif",Font.CENTER_BASELINE,15));
// 设置的范围轴，以显示只有整数
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
//装载设定
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
//将纵坐标间距设置为3
rangeAxis.setTickUnit(new NumberTickUnit(3));
//设置最高的一个柱与图片顶端的距离
rangeAxis.setUpperMargin(0.2);
//设置最低的一个柱与图片底端的距离
rangeAxis.setLowerMargin(0.05);
//设置竖坐标标签的旋转角度
rangeAxis.setLabelAngle(0.05);
//设置第二y轴坐标名
NumberAxis numberAxis = new NumberAxis("y轴值");
//将第二纵坐标间距设置为5
numberAxis.setTickUnit(new NumberTickUnit(5));
//装载第二y轴坐标
plot.setRangeAxis(1, numberAxis);
//设置第二y轴坐标位置
plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);
//装载第二组数据
plot.setDataset(1, dataset1);
//是第二组数据生成线图
plot.setRenderer(1, new LineAndShapeRenderer());
//第二个数据映射到第一个数据域x轴
plot.mapDatasetToDomainAxis(1,0);
//第二个数据映射到第二个数据域y轴
plot.mapDatasetToRangeAxis(1,1);
//修改图例的字体
LegendTitle legend = chart.getLegend();
legend.setItemFont(new Font("宋体", Font.BOLD, 14));
//设置图例中图示的位置(最短距离)
legend.setPadding(10D,10D,10D,10D);
//设置图例的背景颜色
legend.setBackgroundPaint(Color.CYAN);
//设置图例在图片中的位置(上下左右)
legend.setPosition(RectangleEdge.RIGHT);
//设置图例在图片中的位置(左中右)
legend.setHorizontalAlignment(HorizontalAlignment.CENTER);
//设置图例在图片中的位置(上中下)
legend.setVerticalAlignment(VerticalAlignment.TOP);
//手动设置图例是否可见
legend.setVisible(false);
//重新生成图例（契机）
//实例化图例
LegendTitle legendtitle = new LegendTitle(chart.getPlot());
//设置图片背景颜色
legendtitle.setBackgroundPaint(Color.CYAN);
//实例化图例块
BlockContainer blockcontainer = new BlockContainer(new BorderArrangement());
//图例的边界宽度
blockcontainer.setBorder(1.0D, 1.0D, 1.0D, 1.0D);
//自定义图例标题（标签）
LabelBlock labelblock = new LabelBlock("test菜单:", new Font("宋体", 1, 12));
//自定义边界距离
labelblock.setPadding(5D, 5D, 5D, 5D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(labelblock, RectangleEdge.TOP);
//自定义图例标题（标签）
LabelBlock labelblock1 = new LabelBlock("by thomas 2008.12.19");
//自定义边界距离
labelblock1.setPadding(8D, 20D, 2D, 5D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(labelblock1, RectangleEdge.BOTTOM);
//获得原图例的实例项目集
BlockContainer blockcontainer1 = legendtitle.getItemContainer();
//自定义边界距离
blockcontainer1.setPadding(2D, 10D, 5D, 2D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(blockcontainer1);
//画出图例边界
legendtitle.setWrapper(blockcontainer);
//设置图例在图片中的位置(上下左右)
legendtitle.setPosition(RectangleEdge.RIGHT);
//设置图例在图片中的位置(左中右)
legendtitle.setHorizontalAlignment(HorizontalAlignment.LEFT);
//使图例生成有效
chart.addSubtitle(legendtitle);
//让上面所有的主要样式设置都生效
plot.setRenderer(renderer);
return chart;
}
/**
* <b>建构间隔标记。针对y轴<b>
* @param low 区域起始位置
* @param height 区域结束位置
* @param color 区域颜色
* @param label 区域名称（统一都在y轴的左中位置）
* @return intervalmarker 返回统一建构间隔标记
*/
private static IntervalMarker createIntervalMarker(double low, double height, Color color, String label) {
IntervalMarker intervalmarker = new IntervalMarker(low, height);
intervalmarker.setPaint(color);
intervalmarker.setLabel(label);
intervalmarker.setLabelFont(new Font("宋体", Font.BOLD, 8));
intervalmarker.setLabelAnchor(RectangleAnchor.LEFT);
intervalmarker.setLabelTextAnchor(TextAnchor.CENTER_LEFT);
return intervalmarker;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
BarChartDemo1 demo = new BarChartDemo1("Bar 图 Demo 1");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
二、饼图demo
/**
* 生成一个2D饼图
*
* */
package org.jfree.chart.demo;
import java.awt.Color;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Image;
import java.io.IOException;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.block.BlockContainer;
import org.jfree.chart.block.BorderArrangement;
import org.jfree.chart.block.LabelBlock;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.title.LegendTitle;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.HorizontalAlignment;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.VerticalAlignment;
/**
* 生成一个2D饼图（基础图形）
*/
public class PieChartDemo1 extends ApplicationFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* Default constructor.
*
* @param title the frame title.
*/
public PieChartDemo1(String title) {
super(title);
setContentPane(createDemoPanel(title));
}
/**
* 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(String title,PieDataset dataset) {
JFreeChart chart = ChartFactory.createPieChart(
title, // chart title
dataset, // data
true, // include legend
true,
false
);
//总图片设置
//设置背景颜色的图表
GradientPaint gp = new GradientPaint(0.0f, 0.0f, Color.blue,
500.0f, 270.0f, new Color(0, 0, 64));
gp = null;
chart.setBackgroundPaint(gp);
//设置图片背景图片
if(gp == null){
Image image = null;
try {
image = ImageIO.read(new java.io.File("D:\\2006110821482378503.jpg"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
chart.setBackgroundImage(image);
}
//设置图片的边框是否显示
chart.setBorderVisible(false);
//设置背景图片透明度（0.0～1.0）
chart.setBackgroundImageAlpha(1.0f);
//是否字体去锯齿
chart.setAntiAlias(true);
//手动设置饼图样式
PiePlot plot = (PiePlot) chart.getPlot();
//设置图片的背景颜色
plot.setBackgroundPaint(Color.lightGray);
//设置图片的透明度（0.0~1.0）
plot.setBackgroundAlpha(0.6f);
//把Lable 为"One" 的那一块”挖“出来30%
plot.setExplodePercent("One",0.3D);
plot.setExplodePercent("Six",0.3D);
//设置无数据时的信息
plot.setNoDataMessage("无对应的数据，请重新查询。");
// 设置无数据时的信息显示颜色
plot.setNoDataMessagePaint(Color.red);
// 图片中显示百分比:自定义方式，{0} 表示选项， {1} 表示数值， {2} 表示所占比例 ,小数点后两位
plot.setLabelGenerator(new StandardPieSectionLabelGenerator(
"{0}={1}辆({2})", NumberFormat.getNumberInstance(),
new DecimalFormat("0.00%")));
// 图例显示百分比:自定义方式， {0} 表示选项， {1} 表示数值， {2} 表示所占比例
plot.setLabelFont(new Font("宋体", Font.BOLD, 14));
plot.setLegendLabelGenerator(new StandardPieSectionLabelGenerator(
"{0}={1}({2})"));
plot.setLabelFont(new Font("SansSerif", Font.TRUETYPE_FONT, 12));
// 指定图片的透明度(0.0-1.0)
plot.setForegroundAlpha(1.0f);
// 指定显示的饼图上圆形(false)还椭圆形(true)
plot.setCircular(true, false);
// 设置第一个 饼块section 的开始位置，默认是12点钟方向
plot.setStartAngle(90);
// 设置分饼颜色
plot.setSectionPaint("Five", new Color(244, 194, 144));
plot.setSectionPaint("Six", new Color(144, 233, 144));
//修改图例的字体
LegendTitle legend = chart.getLegend();
legend.setItemFont(new Font("宋体", Font.BOLD, 14));
//设置图例中图示的位置(最短距离)
legend.setPadding(10D,10D,10D,10D);
//设置图例的背景颜色
legend.setBackgroundPaint(Color.CYAN);
//设置图例在图片中的位置(上下左右)
legend.setPosition(RectangleEdge.RIGHT);
//设置图例在图片中的位置(左中右)
legend.setHorizontalAlignment(HorizontalAlignment.CENTER);
//设置图例在图片中的位置(上中下)
legend.setVerticalAlignment(VerticalAlignment.TOP);
//手动设置图例是否可见
legend.setVisible(false);
//重新生成图例（契机）
//实例化图例
LegendTitle legendtitle = new LegendTitle(chart.getPlot());
//设置图片背景颜色
legendtitle.setBackgroundPaint(Color.CYAN);
//实例化图例块
BlockContainer blockcontainer = new BlockContainer(new BorderArrangement());
//图例的边界宽度
blockcontainer.setBorder(1.0D, 1.0D, 1.0D, 1.0D);
//自定义图例标题（标签）
LabelBlock labelblock = new LabelBlock("test菜单:", new Font("宋体", 1, 12));
//自定义边界距离
labelblock.setPadding(5D, 5D, 5D, 5D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(labelblock, RectangleEdge.TOP);
//自定义图例标题（标签）
LabelBlock labelblock1 = new LabelBlock("by thomas 2008.12.19");
//自定义边界距离
labelblock1.setPadding(8D, 20D, 2D, 5D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(labelblock1, RectangleEdge.BOTTOM);
//获得原图例的实例项目集
BlockContainer blockcontainer1 = legendtitle.getItemContainer();
//自定义边界距离
blockcontainer1.setPadding(2D, 10D, 5D, 2D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(blockcontainer1);
//画出图例边界
legendtitle.setWrapper(blockcontainer);
//设置图例在图片中的位置(上下左右)
legendtitle.setPosition(RectangleEdge.RIGHT);
//设置图例在图片中的位置(左中右)
legendtitle.setHorizontalAlignment(HorizontalAlignment.LEFT);
chart.addSubtitle(legendtitle);
return chart;
}
/**
* Creates a panel for the demo (used by SuperDemo.java).
*
* @return A panel.
*/
public static JPanel createDemoPanel(String title) {
JFreeChart chart = createChart(title,createDataset());
return new ChartPanel(chart);
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
// ******************************************************************
// More than 150 demo applications are included with the JFreeChart
// Developer Guide...for more information, see:
//
// > http://www.object-refinery.com/jfreechart/guide.html
//
// ******************************************************************
PieChartDemo1 demo = new PieChartDemo1("Pie Chart Demo 1");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
三、线图demo
* 生成一个线形图
* */
package org.jfree.chart.demo;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Image;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.awt.geom.GeneralPath;
import javax.imageio.ImageIO;
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.NumberTickUnit;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.block.BlockContainer;
import org.jfree.chart.block.BorderArrangement;
import org.jfree.chart.block.LabelBlock;
import org.jfree.chart.labels.ItemLabelAnchor;
import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.IntervalMarker;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.title.LegendTitle;
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.HorizontalAlignment;
import org.jfree.ui.Layer;
import org.jfree.ui.RectangleAnchor;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.TextAnchor;
import org.jfree.ui.VerticalAlignment;
import org.jfree.util.ShapeUtilities;
/**
* 生成一个带有多组数据的线形图（最基础图形）
*
*/
public class LineChartDemo1 extends ApplicationFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* 生成条形图
*
* @param title 大标题.
*/
public LineChartDemo1(String title) {
super(title);
CategoryDataset dataset = createDataset();
JFreeChart chart = createChart(title,dataset);
ChartPanel chartPanel = new ChartPanel(chart, false);
chartPanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* 返回条形图所需要的数据（CategoryDataset基础数据类型）.
*
* @return The dataset.
*/
private static CategoryDataset createDataset() {
// 行数据名称
String series1 = "First";
String series2 = "Second";
String series3 = "Third";
// 栏数据名称
String category1 = "Category 1";
String category2 = "Category 2";
String category3 = "Category 3";
String category4 = "Category 4";
String category5 = "Category 5";
// 详细数据
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(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, 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(0.40, series1, category1);
dataset.addValue(0.51, series1, category2);
dataset.addValue(0.3, series1, category3);
dataset.addValue(0.5, series1, category4);
dataset.addValue(0.5, series1, category5);
return dataset;
}
/**
* 生成一个线形图图片
*
* @param dataset the dataset.
*
* @return The chart.
*/
private static JFreeChart createChart(String title,CategoryDataset dataset) {
// create the chart...
JFreeChart chart = ChartFactory.createLineChart(
title, // chart title
"Category", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips?
false // URLs?
);
//总图片设置
//设置背景颜色的图表
GradientPaint gp = new GradientPaint(0.0f, 0.0f, Color.blue,
500.0f, 270.0f, new Color(0, 0, 64));
gp = null;
chart.setBackgroundPaint(gp);
//设置图片背景图片
if(gp == null){
Image image = null;
try {
image = ImageIO.read(new java.io.File("D:\\2006110821482378503.jpg"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
chart.setBackgroundImage(image);
}
//设置图片的边框是否显示
chart.setBorderVisible(true);
//设置背景图片透明度（0.0～1.0）
chart.setBackgroundImageAlpha(1.0f);
//是否字体去锯齿
chart.setAntiAlias(true);
//主标题字体设置
TextTitle text = chart.getTitle();
Font font = new Font("黑体",Font.BOLD,20);
text.setFont(font);
chart.setTitle(text);
chart.addSubtitle(new TextTitle( "Source: http://thomas0988.iteye.com/", new Font("Dialog", Font.ITALIC, 10)));
//主图片主样式实例化
CategoryPlot plot=chart.getCategoryPlot();
//设置图片的背景颜色
plot.setBackgroundPaint(Color.lightGray);
//设置图片的透明度（0.0~1.0）
plot.setBackgroundAlpha(1.0f);
//设置x轴刻度线颜色
plot.setDomainGridlinePaint(Color.white);
plot.setDomainGridlinesVisible(true);
//设置y轴刻度线颜色
plot.setRangeGridlinePaint(Color.white);
plot.setRangeGridlinesVisible(true);
//设置柱子的透明度
plot.setForegroundAlpha(0.9f);
//设置x轴显示位置
plot.setDomainAxisLocation(AxisLocation.TOP_OR_LEFT);
//设置y轴显示位置
plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
plot.addRangeMarker(createIntervalMarker(0, 2, Color.GREEN, "0~2"), Layer.BACKGROUND);
plot.addRangeMarker(createIntervalMarker(2, 4, Color.BLACK, "2~4"), Layer.BACKGROUND);
plot.addRangeMarker(createIntervalMarker(4, 6, Color.PINK, "4~6"), Layer.FOREGROUND);
plot.addRangeMarker(createIntervalMarker(6, 8, Color.BLUE, "6~8"), Layer.BACKGROUND);
plot.addRangeMarker(createIntervalMarker(8, 10, Color.YELLOW, "8~10"), Layer.BACKGROUND);
//Line实例化,获得LineAndShapeRenderer类的实例，目的是设置线形的绘制属性
LineAndShapeRenderer renderer = (LineAndShapeRenderer)plot.getRenderer();
//手动设置条形图上bar设置颜色
GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue,
0.0f, 0.0f, new Color(0, 0, 64));
GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.red,
0.0f, 0.0f, new Color(64, 0, 0));
GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.green,
0.0f, 0.0f, new Color(0, 64, 0));
renderer.setSeriesPaint(0, gp0);
renderer.setSeriesPaint(1, gp1);
renderer.setSeriesPaint(2, gp2);
renderer.setBaseOutlinePaint(Color.BLACK);
//设置第一条线有数据点
renderer.setSeriesShapesVisible(0, true);
//renderer.setDrawOutlines(true);
//可以重新设置数据点颜色默认为白色方形
renderer.setUseFillPaint(true);
//数据点填充颜色
renderer.setFillPaint(Color.yellow);
//设置数据点为圆形(x为上下偏离，y为左右偏离，w为圆形左右距离，h为圆形上下距离)
//renderer.setSeriesShape(0,new Ellipse2D.Double(-3.0,-3.0,6.0, 6.0));
//设置数据点为菱形（x为边，y为交）
//renderer.setSeriesShape(0,ShapeUtilities.createDiagonalCross(3.0f, 1.0f));
//设置数据点为菱形（x为双对边距离）
//renderer.setSeriesShape(0,ShapeUtilities.createDiamond(6.0f));
//设置数据点为倒三角形（x为三角距离）
//renderer.setSeriesShape(0,ShapeUtilities.createDownTriangle(3.0f));
//设置数据点为正方形（x为边，y为角）
//renderer.setSeriesShape(0,ShapeUtilities.createRegularCross(3.0f, 1.0f));
//设置数据点为上三角形（x为三角距离）
renderer.setSeriesShape(0,ShapeUtilities.createUpTriangle(3.0f));
//设置每个数据点的连接线是否显示
renderer.setSeriesLinesVisible(0, true);
/// 设置柱形图上的文字偏离值
renderer.setItemLabelAnchorOffset(5D);
/// 设置柱形图上的文字
renderer.setBaseItemLabelFont(new Font("arial", Font.PLAIN, 10), true);
///显示每个柱的数值，并修改该数值的字体属性
renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
//设置数值在柱图的方位
renderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_CENTER));
//设置数值生效
renderer.setBaseItemLabelsVisible(true);
//设置bar生效
plot.setRenderer(renderer);
//x坐标轴实例化
CategoryAxis xaxis = plot.getDomainAxis();
//坐标轴标尺值字体
xaxis.setTickLabelFont(new Font("Serif",Font.CENTER_BASELINE,13));
xaxis.setLabelFont(new Font("Serif",Font.CENTER_BASELINE,20));
//设置栏目名称的旋转角度
xaxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0));
//设置距离图片左端距离,参数为图片的百分比
xaxis.setLowerMargin(0.05);
//设置距离图片右端距离
xaxis.setUpperMargin(0.05);
//y坐标轴实例化
ValueAxis yaxis = plot.getRangeAxis();
//坐标轴标尺值字体
yaxis.setTickLabelFont(new Font("Serif",Font.CENTER_BASELINE,13));
yaxis.setLabelFont(new Font("Serif",Font.CENTER_BASELINE,15));
// 设置的范围轴，以显示只有整数
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
//将纵坐标间距设置为3
rangeAxis.setTickUnit(new NumberTickUnit(3));
//设置最高的一个柱与图片顶端的距离
rangeAxis.setUpperMargin(0.2);
//设置最低的一个柱与图片底端的距离
rangeAxis.setLowerMargin(0.05);
//设置竖坐标标签的旋转角度
rangeAxis.setLabelAngle(0.05);
//设置数值最小范围
rangeAxis.setLowerBound(0.3);
//设置数值最大范围
rangeAxis.setUpperBound(5);
//修改图例的字体
LegendTitle legend = chart.getLegend();
legend.setItemFont(new Font("宋体", Font.BOLD, 14));
//设置图例中图示的位置(最短距离)
legend.setPadding(10D,10D,10D,10D);
//设置图例的背景颜色
legend.setBackgroundPaint(Color.CYAN);
//设置图例在图片中的位置(上下左右)
legend.setPosition(RectangleEdge.RIGHT);
//设置图例在图片中的位置(左中右)
legend.setHorizontalAlignment(HorizontalAlignment.CENTER);
//设置图例在图片中的位置(上中下)
legend.setVerticalAlignment(VerticalAlignment.TOP);
//手动设置图例是否可见
legend.setVisible(false);
//重新生成图例（契机）
//实例化图例
LegendTitle legendtitle = new LegendTitle(chart.getPlot());
//设置图片背景颜色
legendtitle.setBackgroundPaint(Color.CYAN);
//实例化图例块
BlockContainer blockcontainer = new BlockContainer(new BorderArrangement());
//图例的边界宽度
blockcontainer.setBorder(1.0D, 1.0D, 1.0D, 1.0D);
//自定义图例标题（标签）
LabelBlock labelblock = new LabelBlock("test菜单:", new Font("宋体", 1, 12));
//自定义边界距离
labelblock.setPadding(5D, 5D, 5D, 5D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(labelblock, RectangleEdge.TOP);
//自定义图例标题（标签）
LabelBlock labelblock1 = new LabelBlock("by thomas 2009.01.04");
//自定义边界距离
labelblock1.setPadding(8D, 20D, 2D, 5D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(labelblock1, RectangleEdge.BOTTOM);
//获得原图例的实例项目集
BlockContainer blockcontainer1 = legendtitle.getItemContainer();
//自定义边界距离
blockcontainer1.setPadding(2D, 10D, 5D, 2D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(blockcontainer1);
//画出图例边界
legendtitle.setWrapper(blockcontainer);
//设置图例在图片中的位置(上下左右)
legendtitle.setPosition(RectangleEdge.RIGHT);
//设置图例在图片中的位置(左中右)
legendtitle.setHorizontalAlignment(HorizontalAlignment.LEFT);
chart.addSubtitle(legendtitle);
return chart;
}
private static IntervalMarker createIntervalMarker(double low, double height, Color color, String label) {
IntervalMarker intervalmarker = new IntervalMarker(low, height);
intervalmarker.setPaint(color);
intervalmarker.setLabel(label);
intervalmarker.setLabelFont(new Font("宋体", Font.BOLD, 8));
intervalmarker.setLabelAnchor(RectangleAnchor.LEFT);
intervalmarker.setLabelTextAnchor(TextAnchor.CENTER_LEFT);
return intervalmarker;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
LineChartDemo1 demo = new LineChartDemo1("Line Chart Demo 1");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
四、雷达图demo
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Image;
import java.io.IOException;
import javax.imageio.ImageIO;
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.axis.NumberTickUnit;
import org.jfree.chart.block.BlockContainer;
import org.jfree.chart.block.BorderArrangement;
import org.jfree.chart.block.LabelBlock;
import org.jfree.chart.plot.PolarPlot;
import org.jfree.chart.renderer.DefaultPolarItemRenderer;
import org.jfree.chart.title.LegendTitle;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.HorizontalAlignment;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.VerticalAlignment;
/**
* 生成一个带有多组数据的条形图（最基础图形）
*
*/
public class PolarChartDemo1 extends ApplicationFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* 生成条形图
*
* @param title 大标题.
*/
public PolarChartDemo1(String title) {
super(title);
XYDataset dataset = createDataset();
JFreeChart chart = createChart(dataset);
ChartPanel chartPanel = new ChartPanel(chart, false);
chartPanel.setPreferredSize(new Dimension(800, 600));
setContentPane(chartPanel);
}
/**
* 返回条形图所需要的数据（CategoryDataset基础数据类型）.
*
* @return The dataset.
*/
private static XYDataset createDataset() {
// 详细数据
XYSeriesCollection xySeriesCollection = new XYSeriesCollection();
XYSeries xyseries0 = new XYSeries("one");
xyseries0.add(0.0D, 91D);
xyseries0.add(90D, 100D);
xyseries0.add(180D, 78D);
xyseries0.add(270D, 84D);
xySeriesCollection.addSeries(xyseries0);
XYSeries xyseries1 = new XYSeries("two");
xyseries1.add(90D, 11.199999999999999D);
xyseries1.add(180D, 21.399999999999999D);
xyseries1.add(230D, 17.300000000000001D);
xyseries1.add(355D, 10.9D);
xySeriesCollection.addSeries(xyseries1);
XYSeries xyseries2 = new XYSeries("three");
xyseries2.add(90D, 90.199999999999999D);
xyseries2.add(180D, 90.399999999999999D);
xyseries2.add(250D, 90.300000000000001D);
xyseries2.add(355D, 100D);
xySeriesCollection.addSeries(xyseries2);
return xySeriesCollection;
}
/**
* 生成一个条形图图片
*
* @param dataset the dataset.
*
* @return The chart.
*/
private static JFreeChart createChart(XYDataset dataset) {
// create the chart...
JFreeChart chart = ChartFactory.createPolarChart(
"Bar Chart Demo 1", // chart title
dataset, // data
true, // include legend
true, // tooltips?
false // URLs?
);
//总图片设置
//设置背景颜色的图表
GradientPaint gp = new GradientPaint(0.0f, 0.0f, Color.blue,
500.0f, 270.0f, new Color(0, 0, 64));
gp = null;
chart.setBackgroundPaint(gp);
//设置图片背景图片
if(gp == null){
Image image = null;
try {
image = ImageIO.read(new java.io.File("D:\\2006110821482378503.jpg"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
chart.setBackgroundImage(image);
}
//设置图片的边框是否显示
chart.setBorderVisible(false);
//设置背景图片透明度（0.0～1.0）
chart.setBackgroundImageAlpha(1.0f);
//是否字体去锯齿
chart.setAntiAlias(true);
//手动设置饼图样式
PolarPlot plot = (PolarPlot) chart.getPlot();
//设置图片的背景颜色
plot.setBackgroundPaint(Color.lightGray);
//设置图片的透明度（0.0~1.0）
plot.setBackgroundAlpha(0.6f);
//设置无数据时的信息
plot.setNoDataMessage("无对应的数据，请重新查询。");
// 设置无数据时的信息显示颜色
plot.setNoDataMessagePaint(Color.red);
// 指定图片的透明度(0.0-1.0)
plot.setForegroundAlpha(1.0f);
plot.setBackgroundPaint(Color.lightGray);
/* plot.addCornerTextItem("Corner Item 1 ");
plot.addCornerTextItem("Corner Item 2 ");
plot.setBackgroundImageAlignment(plot.MINIMUM_HEIGHT_TO_DRAW);
plot.setAngleTickUnit(new NumberTickUnit(45));*/
// plot.setAngleGridlinesVisible(false);
// 设置雷达颜色
GradientPaint gradientpaint3 = new GradientPaint(0.0F, 0.0F,
Color.black, 0.0F, 0.0F, Color.black);
plot.setRadiusGridlinePaint(gradientpaint3);//
// 两个四边形颜色
GradientPaint gradientpaint1 = new GradientPaint(0.0F, 0.0F, Color.red,
0.0F, 0.0F, Color.red); //
GradientPaint gradientpaint2 = new GradientPaint(0.0F, 0.0F,
Color.blue, 0.0F, 0.0F, Color.blue); //
// 设置两个四边形颜色
DefaultPolarItemRenderer renderer = new DefaultPolarItemRenderer();
renderer.setSeriesPaint(0, gradientpaint1);
renderer.setSeriesPaint(1, gradientpaint2);
renderer.setSeriesPaint(2, gradientpaint3);
plot.setRenderer(renderer);
NumberAxis numberaxis = (NumberAxis) plot.getAxis();
numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
numberaxis.setAutoRange(false);
numberaxis.setVisible(false);
numberaxis.setTickUnit(new NumberTickUnit(5));// 设置雷达网格数量
//修改图例的字体
LegendTitle legend = chart.getLegend();
legend.setItemFont(new Font("宋体", Font.BOLD, 14));
//设置图例中图示的位置(最短距离)
legend.setPadding(10D,10D,10D,10D);
//设置图例的背景颜色
legend.setBackgroundPaint(Color.CYAN);
//设置图例在图片中的位置(上下左右)
legend.setPosition(RectangleEdge.RIGHT);
//设置图例在图片中的位置(左中右)
legend.setHorizontalAlignment(HorizontalAlignment.CENTER);
//设置图例在图片中的位置(上中下)
legend.setVerticalAlignment(VerticalAlignment.TOP);
//手动设置图例是否可见
legend.setVisible(false);
//重新生成图例（契机）
//实例化图例
LegendTitle legendtitle = new LegendTitle(chart.getPlot());
//设置图片背景颜色
legendtitle.setBackgroundPaint(Color.CYAN);
//实例化图例块
BlockContainer blockcontainer = new BlockContainer(new BorderArrangement());
//图例的边界宽度
blockcontainer.setBorder(1.0D, 1.0D, 1.0D, 1.0D);
//自定义图例标题（标签）
LabelBlock labelblock = new LabelBlock("test菜单:", new Font("宋体", 1, 12));
//自定义边界距离
labelblock.setPadding(5D, 5D, 5D, 5D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(labelblock, RectangleEdge.TOP);
//自定义图例标题（标签）
LabelBlock labelblock1 = new LabelBlock("by thomas 2008.12.19");
//自定义边界距离
labelblock1.setPadding(8D, 20D, 2D, 5D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(labelblock1, RectangleEdge.BOTTOM);
//获得原图例的实例项目集
BlockContainer blockcontainer1 = legendtitle.getItemContainer();
//自定义边界距离
blockcontainer1.setPadding(2D, 10D, 5D, 2D);
//自定义图例标签的位置并使之装入自定义图例框
blockcontainer.add(blockcontainer1);
//画出图例边界
legendtitle.setWrapper(blockcontainer);
//设置图例在图片中的位置(上下左右)
legendtitle.setPosition(RectangleEdge.RIGHT);
//设置图例在图片中的位置(左中右)
legendtitle.setHorizontalAlignment(HorizontalAlignment.LEFT);
chart.addSubtitle(legendtitle);
return chart;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
PolarChartDemo1 demo = new PolarChartDemo1("Bar Chart Demo 1");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
五、蜘蛛图demo
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Image;
import java.io.IOException;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import javax.imageio.ImageIO;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.annotations.CategoryAnnotation;
import org.jfree.chart.annotations.XYTextAnnotation;
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.NumberTickUnit;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.block.BlockContainer;
import org.jfree.chart.block.BorderArrangement;
import org.jfree.chart.block.LabelBlock;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.IntervalMarker;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.SpiderWebPlot;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.title.LegendTitle;
import org.jfree.chart.title.TextTitle;
import org.jfree.chart.urls.StandardCategoryURLGenerator;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.HorizontalAlignment;
import org.jfree.ui.Layer;
import org.jfree.ui.RectangleAnchor;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.RectangleInsets;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.TextAnchor;
import org.jfree.ui.VerticalAlignment;
/**
* 生成一个带有多组数据的柱图（最基础图形）
*
*/
public class PolarChartDemo2 extends ApplicationFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* 生成柱图
*
* @param title 大标题.
*/
public PolarChartDemo2(String title) {
super(title);
CategoryDataset dataset = createDataset();
JFreeChart chart = createChart(title,dataset);
ChartPanel chartPanel = new ChartPanel(chart, false);
chartPanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* 返回条形图所需要的数据（CategoryDataset基础数据类型）.
*
* @return The dataset.
*/
private static CategoryDataset createDataset() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
String group1 = "apple ";
dataset.addValue(5, group1, "w1");
dataset.addValue(6, group1, "w2");
dataset.addValue(4, group1, "w3");
dataset.addValue(2, group1, "w4");
dataset.addValue(5, group1, "w5");
dataset.addValue(5, group1, "w6");
dataset.addValue(5, group1, "w7");
dataset.addValue(8, group1, "w8");
return dataset;
}
/**
* 生成一个柱图图片
*
* @param dataset the dataset.
*
* @return The chart.
*/
private static JFreeChart createChart(String title,CategoryDataset dataset) {
SpiderWebPlot spiderwebplot = new SpiderWebPlot(dataset);
JFreeChart chart = new JFreeChart("Test", TextTitle.DEFAULT_FONT,spiderwebplot, false);
LegendTitle legendtitle = new LegendTitle(spiderwebplot);
legendtitle.setPosition(RectangleEdge.BOTTOM);
chart.addSubtitle(legendtitle);
return chart;
}
/**
* <b>建构间隔标记。针对y轴<b>
* @param low 区域起始位置
* @param height 区域结束位置
* @param color 区域颜色
* @param label 区域名称（统一都在y轴的左中位置）
* @return intervalmarker 返回统一建构间隔标记
*/
private static IntervalMarker createIntervalMarker(double low, double height, Color color, String label) {
IntervalMarker intervalmarker = new IntervalMarker(low, height);
intervalmarker.setPaint(color);
intervalmarker.setLabel(label);
intervalmarker.setLabelFont(new Font("宋体", Font.BOLD, 8));
intervalmarker.setLabelAnchor(RectangleAnchor.LEFT);
intervalmarker.setLabelTextAnchor(TextAnchor.CENTER_LEFT);
return intervalmarker;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
PolarChartDemo2 demo = new PolarChartDemo2("Bar 图 Demo 1");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}标签：jfree,demo,不断更新,chart,new,dataset,jfreechart,import,org From： https://blog.51cto.com/u_16255870/7552806