org.jfree.chart.demo.Function2DDemo1.java Source code

Introduction

Here is the source code for org.jfree.chart.demo.Function2DDemo1.java

Source

package org.jfree.chart.demo;

import java.awt.Dimension;

import javax.swing.JPanel;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.function.Function2D;
import org.jfree.data.general.DatasetUtilities;
import org.jfree.data.xy.XYDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class Function2DDemo1 extends ApplicationFrame {
    private static final long serialVersionUID = 1L;

    static class X2 implements Function2D {

        public double getValue(double d) {
            return d * d + 2D;
        }

        X2() {
        }
    }

    public Function2DDemo1(String s) {
        super(s);
        JPanel jpanel = createDemoPanel();
        jpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(jpanel);
    }

    private static JFreeChart createChart(XYDataset xydataset) {
        JFreeChart jfreechart = ChartFactory.createXYLineChart("Function2DDemo1 ", "X", "Y", xydataset,
                PlotOrientation.VERTICAL, true, true, false);
        XYPlot xyplot = (XYPlot) jfreechart.getPlot();
        xyplot.getDomainAxis().setLowerMargin(0.0D);
        xyplot.getDomainAxis().setUpperMargin(0.0D);
        return jfreechart;
    }

    public static XYDataset createDataset() {
        XYDataset xydataset = DatasetUtilities.sampleFunction2D(new X2(), -4D, 4D, 40, "f(x)");
        return xydataset;
    }

    public static JPanel createDemoPanel() {
        JFreeChart jfreechart = createChart(createDataset());
        return new ChartPanel(jfreechart);
    }

    public static void main(String args[]) {
        Function2DDemo1 function2ddemo1 = new Function2DDemo1("JFreeChart: Function2DDemo1.java");
        function2ddemo1.pack();
        RefineryUtilities.centerFrameOnScreen(function2ddemo1);
        function2ddemo1.setVisible(true);
    }
}