jfreechart之折线图

package test;

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.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class LineCharts extends ApplicationFrame {

public LineCharts(String s) {
super(s);
setContentPane(createDemoLine());
}

public static void main(String[] args) {
LineCharts fjc = new LineCharts("折线图");
fjc.pack();
RefineryUtilities.centerFrameOnScreen(fjc);
fjc.setVisible(true);

}

// 生成显示图表的面板
public static JPanel createDemoLine() {
JFreeChart jfreechart = createChart(createDataset());
return new ChartPanel(jfreechart);
}

// 生成图表主对象JFreeChart
public static JFreeChart createChart(DefaultCategoryDataset linedataset) {
//定义图表对象
JFreeChart chart = ChartFactory.createLineChart("折线图", // chart title
    "时间", // domain axis label
    "销售额(百万)", // range axis label
    linedataset, // data
    PlotOrientation.VERTICAL, // orientation
    true, // include legend
    true, // tooltips
    false // urls
    );
CategoryPlot plot = chart.getCategoryPlot();
// customise the range axis...
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setAutoRangeIncludesZero(true);
rangeAxis.setUpperMargin(0.20);
rangeAxis.setLabelAngle(Math.PI / 2.0);

return chart;
}

//生成数据
public static DefaultCategoryDataset createDataset() {
DefaultCategoryDataset linedataset = new DefaultCategoryDataset();
// 各曲线名称
String series1 = "冰箱";
String series2 = "彩电";
String series3 = "洗衣机";

//    横轴名称(列名称)
String type1 = "1月";
String type2 = "2月";
String type3 = "3月";

linedataset.addValue(0.0, series1, type1);
linedataset.addValue(4.2, series1, type2);
linedataset.addValue(3.9, series1, type3);

linedataset.addValue(1.0, series2, type1);
linedataset.addValue(5.2, series2, type2);
linedataset.addValue(7.9, series2, type3);

linedataset.addValue(2.0, series3, type1);
linedataset.addValue(9.2, series3, type2);
linedataset.addValue(8.9, series3, type3);

return linedataset;
}

}

package com.iman.nrms.nrmwns.wrm.analyse.domain.util;   
  
import java.awt.Color;   
import java.awt.Font;   
import java.text.DecimalFormat;   
  
import org.jfree.chart.JFreeChart;   
import org.jfree.chart.axis.CategoryAxis;   
import org.jfree.chart.axis.NumberAxis;   
import org.jfree.chart.axis.ValueAxis;   
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;   
import org.jfree.chart.plot.CategoryPlot;   
import org.jfree.chart.renderer.category.BarRenderer;   
  
/**  
 * 格式化 JFreeChart 输出图片使用  
 *   
 *     
 * Author :   
 * Date   : Nov 26, 2009  
 * Time   : 11:50:41 AM   
 * Version: 1.0  
 */  
public class FormatPic {   
    /**  
     * 格式化折线图使用  
     *   
     * @param chart  
     * @returnType: void  
     * @author:   
     * @data: Nov 26, 2009  
     * @time: 11:51:26 AM  
     */  
    public static void setView(JFreeChart chart){   
                 chart.setTextAntiAlias(false);    
                   chart.setBackgroundPaint(Color.WHITE);    
                   CategoryPlot categoryplot = (CategoryPlot) chart.getPlot();    
                   // x轴 // 分类轴网格是否可见    
                   categoryplot.setDomainGridlinesVisible(true);    
                   // y轴 //数据轴网格是否可见    
                   categoryplot.setRangeGridlinesVisible(true);    
                      
                   this.configFont(chart);    
                   categoryplot.setRangeGridlinePaint(Color.WHITE);// 虚线色彩    
                   categoryplot.setDomainGridlinePaint(Color.WHITE);// 虚线色彩    
                   categoryplot.setBackgroundPaint(Color.lightGray);    
                   // 设置轴和面板之间的距离    
                   // categoryplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D));    
                   CategoryAxis domainAxis = categoryplot.getDomainAxis();    
                   domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45); // 横轴上的    
                   // Lable    
                   // 45度倾斜    
                   // 设置距离图片左端距离    
                   domainAxis.setLowerMargin(0.0);    
                   // 设置距离图片右端距离    
                   domainAxis.setUpperMargin(0.0);    
                   NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();    
                   numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());    
                   numberaxis.setAutoRangeIncludesZero(true);    
                   // 获得renderer 注意这里是下嗍造型到lineandshaperenderer！！    
                   LineAndShapeRenderer lineandshaperenderer = (LineAndShapeRenderer) categoryplot    
                     .getRenderer();    
                   lineandshaperenderer.setBaseShapesVisible(true); // series 点（即数据点）可见    
                   lineandshaperenderer.setBaseLinesVisible(true); // series 点（即数据点）间有连线可见    
                   // 显示折点数据    
                   // lineandshaperenderer.setBaseItemLabelGenerator(new    
                   // StandardCategoryItemLabelGenerator());    
                   // lineandshaperenderer.setBaseItemLabelsVisible(true);    
    }   
}