JFreeChart水平图

问题描述

我正在使用CombinedDomainXYPlot绘制图表.我还有另一个要求，我需要水平显示两个图表.

I'm using CombinedDomainXYPlot to plot the charts. I have another requirement where, I need to show the two charts horizontally.

目前，我只有一张图表.我需要的是，第一行需要两个图表.如图表1图表2

Currently i'm having only one chart. what i need is, i need two charts in the first row.like Chart1 Chart2

代码:

CombinedDomainXYPlot plot = new CombinedDomainXYPlot();
plot.add(getChart1(), 2);
plot.add(getChart2(), 2);

第一行只给出一个图表.另一排中的第二个chart2.

It is giving only one chart in the first row. and second chart2 in the another row.

有什么办法可以将这两张图表做成一行?

Is there any way I can make these two charts into single row?

实际上，我希望它像您的 ThermometerDemo 示例一样.为此，您使用了JPanel，但是在这里我使用的是JFrame.

Actually I wanted it like your ThermometerDemo example. For that you have used JPanel, but here I'm using JFrame.

推荐答案

基于此示例，以下代码将两个面板添加到GridLayout(1, 0).每个面板都包含自己的图表和控制面板.

Based on this example, the code below adds two panels to a GridLayout(1, 0). Each panel includes it's own chart and control panel.

import java.awt.*;
import java.awt.event.ActionEvent;
import java.util.Random;
import javax.swing.*;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CombinedDomainXYPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;

/**
 * @see https://stackoverflow.com/a/20243624/230513
 * @see https://stackoverflow.com/q/11870416/230513
 */
public class CombinedPlot {

    private static final int MAX = 3;
    private static final Random rand = new Random();

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                init();
            }
        });
    }

    private static void init() {
        JFrame frame = new JFrame("Combined Plot Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLayout(new GridLayout(1, 0));
        frame.add(createPanel());
        frame.add(createPanel());
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

    private static JPanel createPanel() {
        JPanel p = new JPanel(new BorderLayout());
        XYItemRenderer renderer = new StandardXYItemRenderer();
        XYPlot plot1 = new XYPlot(
            generateData(), null, new NumberAxis("Range 1"), renderer);
        XYPlot plot2 = new XYPlot(
            generateData(), null, new NumberAxis("Range 2"), renderer);
        final CombinedDomainXYPlot plot
            = new CombinedDomainXYPlot(new NumberAxis("Domain"));
        plot.add(plot1);
        plot.add(plot2);
        plot.setOrientation(PlotOrientation.VERTICAL);
        JFreeChart chart = new JFreeChart(
            "Combined Plots", JFreeChart.DEFAULT_TITLE_FONT, plot, false);
        ChartPanel chartPanel = new ChartPanel(chart) {

            @Override
            public Dimension getPreferredSize() {
                return new Dimension(320, 320);
            }
        };

        JPanel controlPanel = new JPanel();
        controlPanel.add(new JButton(new UpdateAction(plot, 0)));
        controlPanel.add(new JButton(new UpdateAction(plot, 1)));
        p.add(chartPanel, BorderLayout.CENTER);
        p.add(controlPanel, BorderLayout.SOUTH);
        return p;
    }

    private static class UpdateAction extends AbstractAction {

        private final XYPlot plot;

        public UpdateAction(CombinedDomainXYPlot plot, int i) {
            super("Update plot " + (i + 1));
            this.plot = (XYPlot) plot.getSubplots().get(i);
        }

        @Override
        public void actionPerformed(ActionEvent e) {
            plot.setDataset(CombinedPlot.generateData());
        }
    }

    private static XYSeriesCollection generateData() {
        XYSeriesCollection data = new XYSeriesCollection();
        for (int i = 0; i < MAX; i++) {
            data.addSeries(generateSeries("Series " + (i + 1)));
        }
        return data;
    }

    private static XYSeries generateSeries(String key) {
        XYSeries series = new XYSeries(key);
        for (int i = 0; i < 16; i++) {
            series.add(rand.nextGaussian(), rand.nextGaussian());
        }
        return series;
    }
}

这篇关于JFreeChart水平图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！