java容器 坐标的起点_jfreeChart中如何使纵坐标的起点位置0与横坐标的起点位置0在同一地方...

package com.test;

import java.awt.Color;

import java.awt.Font;

import java.awt.geom.Rectangle2D;

import java.sql.Date;

import org.jfree.chart.ChartFactory;

import org.jfree.chart.ChartFrame;

import org.jfree.chart.ChartPanel;

import org.jfree.chart.JFreeChart;

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.labels.StandardCategoryItemLabelGenerator;

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 LineCharts extends ApplicationFrame{

public LineCharts(String title) {

super(title);

final CategoryDataset dataset = createDataset();

final JFreeChart chart = createChart(dataset);

final ChartPanel chartPanel = new ChartPanel(chart);

chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));

setContentPane(chartPanel);

}

private CategoryDataset createDataset()

{

String series1 = "1";

String series2 = "2";

String series3 = "3";

String type1 = "1";

String type2 = "2";

String type3 = "3";

String type4 = "4";

String type5 = "5";

String type6 = "6";

String type7 = "7";

String type8 = "8";

String type9 = "9";

String type10 = "10";

String type11 = "11";

String type12 = "12";

// 建立dataset

DefaultCategoryDataset dataset = new DefaultCategoryDataset();

// 以下可以动态添加数据

dataset.addValue(30, series1, type1);

dataset.addValue(90, series1, type2);

dataset.addValue(120, series1, type3);

dataset.addValue(350, series1, type4);

dataset.addValue(360, series1, type5);

dataset.addValue(410, series1, type6);

dataset.addValue(450, series1, type7);

dataset.addValue(520, series1, type8);

dataset.addValue(580, series1, type9);

dataset.addValue(600, series1, type10);

dataset.addValue(30, series1, type11);

dataset.addValue(90, series1, type12);

dataset.addValue(152, series2, type1);

dataset.addValue(350, series2, type2);

dataset.addValue(400, series2, type3);

dataset.addValue(450, series2, type4);

dataset.addValue(520, series2, type5);

dataset.addValue(350, series2, type6);

dataset.addValue(500, series2, type7);

dataset.addValue(550, series2, type8);

dataset.addValue(600, series2, type9);

dataset.addValue(530, series2, type10);

dataset.addValue(152, series2, type11);

dataset.addValue(350, series2, type12);

dataset.addValue(100, series3, type1);

dataset.addValue(150, series3, type2);

dataset.addValue(170, series3, type3);

dataset.addValue(190, series3, type4);

dataset.addValue(250, series3, type5);

dataset.addValue(290, series3, type6);

dataset.addValue(350, series3, type7);

dataset.addValue(550, series3, type8);

dataset.addValue(600, series3, type9);

dataset.addValue(350, series3, type10);

dataset.addValue(100, series3, type11);

dataset.addValue(150, series3, type12);

return dataset;

}

private JFreeChart createChart(final CategoryDataset dataset)

{

// 建立chart

JFreeChart chart = ChartFactory.createLineChart(

"价格走势图", // chart title

"时间", // domain axis label

"价格", // range axis label

dataset, // data

PlotOrientation.VERTICAL, // orientation

true, // include legend

true, // tooltips

true // urls

);

// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...

CategoryPlot plot = chart.getCategoryPlot();

// 横轴、纵轴显示的标题

plot.setDomainAxis(new CategoryAxis(""));

plot.setRangeAxis(new NumberAxis("分数"));

plot.setRangeGridlinesVisible(true);

// 设置是否显示垂直网格线

plot.setDomainGridlinesVisible(true);

// customise the range axis...

NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();

// 数据轴精度

rangeAxis.setTickUnit(new NumberTickUnit(50));

rangeAxis.setLowerBound(0);

rangeAxis.setUpperBound(600);

rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

rangeAxis.setAutoRangeIncludesZero(true);

rangeAxis.setUpperMargin(0.20);

rangeAxis.setLabelAngle(Math.PI / 2.0);

CategoryAxis axis = plot.getDomainAxis();//获取x轴

chart.getLegend().setItemFont(new Font ("黑体",Font.BOLD,12));//设置底部中文乱码

axis.setTickLabelFont(new Font("黑体",Font.BOLD,12));//设置X轴坐标上的文字

axis.setLabelFont(new Font("黑体",Font.BOLD,12));//设置X轴的标题文字

numberAxis.setTickLabelFont(new Font("黑体",Font.BOLD,12));//设置X轴坐标上的文字

numberAxis.setLabelFont(new Font("黑体",Font.BOLD,12));//设置X轴的标题文字

chart.getTitle().setFont(new Font("黑体",Font.BOLD,18));//设置标题文字

LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();

renderer.setShapesVisible(true);

renderer.setSeriesPaint(3,Color.red);

renderer.setSeriesLinesVisible(3,false);

renderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator());//显示折点数据

renderer.setItemLabelsVisible(true); */

}

public static void main(final String[] args)

{

final LineCharts demo = new LineCharts("Java Chart");

demo.pack();

RefineryUtilities.centerFrameOnScreen(demo);

demo.setVisible(true);

}

}

作者: Tiafang

发布时间: 2010-09-15