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Jfreechart学习笔记3-简单Line图形创建

系统 1538 0 
    
package com.langhua.line;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.io.FileOutputStream;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
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.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.HorizontalAlignment;
import org.jfree.ui.RectangleEdge;
/**
 * 线状图形创建
 * @author Administrator
 *
 */
public class Line {

	public static void main(String[] args) {
		//数据
		DefaultCategoryDataset dataset = new DefaultCategoryDataset();
		dataset.addValue(212, "Classes类", "JDK 1.0版本");
		dataset.addValue(504, "Classes类", "JDK 1.1版本");
		dataset.addValue(1520, "Classes类", "SDK 1.2版本");
		dataset.addValue(1842, "Classes类", "SDK 1.3版本");
		dataset.addValue(2991, "Classes类", "SDK 1.4版本");
		JFreeChart chart = ChartFactory.createLineChart(	"Java Standard Class Library","Release版本","Class数量",dataset,PlotOrientation.VERTICAL,false,	true,false	);
		//配置chart
		Line.configFont(chart);
		//设置标题
		TextTitle t = new TextTitle("Number of Classes By Release");
		t.setFont(new Font("Comic Sans MS", Font.PLAIN, 15));
		chart.addSubtitle(t);
		//设置标题,并把标题放到最下面的右边
		TextTitle source = new TextTitle("Source: Java In A Nutshell (4th Edition) by David Flanagan (O’Reilly)");
		source.setFont(new Font("Comic Sans MS", Font.PLAIN, 15));
		//放到底部
		source.setPosition(RectangleEdge.BOTTOM);
		//放到右边
		source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
		//添加
		chart.addSubtitle(source);
		
		//设置背影色
		chart.setBackgroundPaint(Color.white);
		
		CategoryPlot plot = (CategoryPlot)chart.getPlot();
		
		//设置网格线
		plot.setRangeGridlinePaint(Color.white);
		// customise the range axis...(这个我不知道是啥子)		
		NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
		rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
		//设置线与线之间的连结点的样式,比如说是否空心,颜色等
		LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot	.getRenderer();
		renderer.setShapesVisible(true);
		renderer.setDrawOutlines(true);
		renderer.setUseFillPaint(true);
		renderer.setFillPaint(Color.yellow);
		
		FileOutputStream fos_jpg = null;
		try {
			fos_jpg = new FileOutputStream("c:\\Line.jpg");
			ChartUtilities.writeChartAsJPEG(fos_jpg,0.99f,chart,800,600,	null);
			fos_jpg.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
         	/**
	 * 解决乱码和样式等问题
	 * @param chart
	 */
	private static void configFont(JFreeChart chart) {
		// 配置字体
		Font xfont = new Font("宋体", Font.CENTER_BASELINE, 12);// X轴
		Font yfont = new Font("宋体", Font.CENTER_BASELINE, 20);// Y轴
		Font kfont = new Font("宋体", Font.CENTER_BASELINE, 18);// 底部
		Font titleFont = new Font("微软雅黑", Font.CENTER_BASELINE, 25); // 图片标题
		CategoryPlot plot = chart.getCategoryPlot();// 图形的绘制结构对象
		//数据轴网格线条颜色
		plot.setRangeGridlinePaint(Color.BLUE);
		//数据轴网格线条笔触
		plot.setRangeGridlineStroke(new BasicStroke(1.0f));
		// 图片标题
		chart.setTitle(new TextTitle(chart.getTitle().getText(),titleFont));

		//X轴
		CategoryAxis domainAxis = plot.getDomainAxis();
		//设置X轴标题字体
		domainAxis.setLabelFont(xfont);
		//设置X轴字体
		domainAxis.setTickLabelFont(xfont);
		//设置字体颜色
		domainAxis.setTickLabelPaint(Color.BLUE);
		//横轴上的label斜显示
		//domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45); 
		//domainAxis.setCategoryLabelPositions(CategoryLabelPositions.DOWN_45);
		//分类轴边距,同种类型之间的距离,比如说Row 1之间的
		//domainAxis.setCategoryMargin(0.2f);
		//分类轴下（左）边距,就是离左边的距离
		domainAxis.setLowerMargin(0.1);
		//分类轴下（右）边距,就是离最右边的距离
		domainAxis.setUpperMargin(0.1);
		
		//Y 轴
		ValueAxis rangeAxis = plot.getRangeAxis();
		//设置Y轴标题字体
		rangeAxis.setLabelFont(yfont);
		//设置Y轴字体
		rangeAxis.setTickLabelFont(yfont);
		// 字体颜色
		rangeAxis.setLabelPaint(Color.RED); 
	}
}


基于XY的Line 

    
package com.langhua.line;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.io.FileOutputStream;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.RectangleInsets;
/**
 *  基于XY的Line
 * @author Administrator
 *
 */
public class XYLine {
	public static void main(String[] args){
		XYSeries series1 = new XYSeries("第一");
		series1.add(1.0, 1.0);
		series1.add(2.0, 4.0);
		series1.add(3.0, 3.0);
		series1.add(4.0, 5.0);
		series1.add(5.0, 5.0);
		series1.add(6.0, 7.0);
		series1.add(7.0, 7.0);
		series1.add(8.0, 8.0);
		
		XYSeries series2 = new XYSeries("第二");
		series2.add(1.0, 5.0);
		series2.add(2.0, 7.0);
		series2.add(3.0, 6.0);
		series2.add(4.0, 8.0);
		series2.add(5.0, 4.0);
		series2.add(6.0, 4.0);
		series2.add(7.0, 2.0);
		series2.add(8.0, 1.0);
		series2.add(9.0, 1.0);
		series2.add(10.0, 1.0);
		series2.add(8.1, 1.2);
		series2.add(8.2, 1.3);
		series2.add(8.5, 1.4);		
		series2.add(11.0, 1.0);
		
		XYSeries series3 = new XYSeries("第三");
		series3.add(3.0, 4.0);
		series3.add(4.0, 3.0);
		series3.add(5.0, 2.0);
		series3.add(6.0, 3.0);
		series3.add(7.0, 6.0);
		series3.add(8.0, 3.0);
		series3.add(9.0, 4.0);
		series3.add(10.0, 3.0);	
		
		XYSeries series4 = new XYSeries("第四");
		series4.add(2.0, 4.0);
		series4.add(3.0, 3.0);
		series4.add(6.0, 2.0);
		series4.add(1.0, 3.0);
		series4.add(2.0, 6.0);
		
		XYSeriesCollection dataset = new XYSeriesCollection();
		dataset.addSeries(series1);
		dataset.addSeries(series2);
		dataset.addSeries(series3);
		dataset.addSeries(series4);
		
		JFreeChart chart = ChartFactory.createXYLineChart("Line Chart例子","X坐标","Y坐标",dataset,PlotOrientation.VERTICAL,true,true,false	);
		XYLine.configFont(chart);
		// 背景色
		chart.setBackgroundPaint(Color.white);
		// 获得XYPlot对象
		XYPlot plot = (XYPlot) chart.getPlot();
		//设置坐标后面的背景色
		plot.setBackgroundPaint(Color.lightGray);
		
		plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
		plot.setDomainGridlinePaint(Color.white);
		plot.setRangeGridlinePaint(Color.white);
		XYLineAndShapeRenderer renderer	= (XYLineAndShapeRenderer) plot.getRenderer();
		renderer.setShapesVisible(true);
		renderer.setShapesFilled(true);
		// change the auto tick unit selection to integer units only...
		NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
		rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
		
		FileOutputStream fos_jpg = null;
		try {
			fos_jpg = new FileOutputStream("c:\\LineXY.jpg");
			ChartUtilities.writeChartAsJPEG(fos_jpg,0.99f,chart,800,600,	null);
			fos_jpg.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	/**
	 * 配置字体等信息
	 * @param chart
	 */
	private static void configFont(JFreeChart chart) {
		// 配置字体
		Font xfont = new Font("宋体", Font.CENTER_BASELINE, 12);// X轴
		Font yfont = new Font("宋体", Font.CENTER_BASELINE, 20);// Y轴
		Font kfont = new Font("宋体", Font.CENTER_BASELINE, 18);// 底部
		Font titleFont = new Font("微软雅黑", Font.CENTER_BASELINE, 25); // 图片标题
		XYPlot plot = (XYPlot) chart.getPlot();// 图形的绘制结构对象
		//数据轴网格线条颜色
		plot.setRangeGridlinePaint(Color.BLUE);
		//数据轴网格线条笔触
		plot.setRangeGridlineStroke(new BasicStroke(1.0f));
		// 图片标题
		chart.setTitle(new TextTitle(chart.getTitle().getText(),titleFont));
		chart.getLegend().setItemFont(kfont);

		//X轴
		ValueAxis domainAxis = plot.getDomainAxis();
		//设置X轴标题字体
		domainAxis.setLabelFont(xfont);
		//设置X轴字体
		domainAxis.setTickLabelFont(xfont);
		//设置字体颜色
		domainAxis.setTickLabelPaint(Color.BLUE);
		//横轴上的label斜显示
		//domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45); 
		//domainAxis.setCategoryLabelPositions(CategoryLabelPositions.DOWN_45);
		//分类轴边距,同种类型之间的距离,比如说Row 1之间的
		//domainAxis.setCategoryMargin(0.2f);
		//分类轴下（左）边距,就是离左边的距离
		domainAxis.setLowerMargin(0.1);
		//分类轴下（右）边距,就是离最右边的距离
		domainAxis.setUpperMargin(0.1);
		
		//Y 轴
		ValueAxis rangeAxis = plot.getRangeAxis();
		//设置Y轴标题字体
		rangeAxis.setLabelFont(yfont);
		//设置Y轴字体
		rangeAxis.setTickLabelFont(yfont);
		// 字体颜色
		rangeAxis.setLabelPaint(Color.RED); 

	}
}






Jfreechart学习笔记3-简单Line图形创建


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