jmathplot doesn't work in swing application

Question

I'm trying to use the jmathplot library in a swing application.

Problem is, it doesn't seem to work when I add it to a JPanel as follows:

    // create your PlotPanel (you can use it as a JPanel)
    double[] x = new double[] { 0, 1, 2, 3, 4, 5 };
    double[] y = new double[] { 10, 11, 12, 14, 15, 16 };


    // create your PlotPanel (you can use it as a JPanel)
    Plot2DPanel graph = new Plot2DPanel();
    graph.setBounds(0, 0, 782, 272);

    // add a line plot to the PlotPanel
    graph.addLinePlot("my plot", x, y);

    JPanel panel = new JPanel();
    panel.setBounds(10, 333, 782, 272);
    tab_analysis.add(panel);
    panel.setLayout(null);
    panel.add(graph);

Because the plot doesn't show up and I get weird axes as well:

enter image description here

The site states:

use the PlotPanel as any Swing component (all PlotPanel extends JPanel, in fact)

What do I do wrong?

score 3 · Accepted Answer · answered Aug 19 '13 at 14:05

works with NullLayout, without any issue, but I'm quite not familair with this layout manager (delegate Insets from parent), then I'm leaving any comments about
simple don't to use NullLayout
override getPreferredSize for Plot2DPanel
JPanel has FLowLayout (with the same output as from NullLayout! on resize), accepting only PreferredSize, child aren't resizable with its contianer, is required to use BorderLayout/GridLayout for simple graph

.

enter image description here .

enter image description here

.

from code

import java.awt.BorderLayout;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import org.math.plot.Plot2DPanel;

public class MyPlot {

    private JFrame frame = new JFrame("JMathPlot library in a swing application.");
    private JPanel panel = new JPanel();

    public MyPlot() {
        double[] x = new double[]{0, 1, 2, 3, 4, 5};
        double[] y = new double[]{10, 11, 12, 14, 15, 16};
        Plot2DPanel plot = new Plot2DPanel() {
            @Override
            public Dimension getPreferredSize() {
                return new Dimension(400, 200);
            }
        };
        plot.addLinePlot("my plot", x, y); // add a line plot to the PlotPanel
        panel.setLayout(new BorderLayout());
        panel.add(plot);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(panel);
        frame.pack();
        frame.setLocation(150, 150);
        frame.setVisible(true);
    }

    public static void main(String[] args) {

        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new MyPlot();
            }
        });
    }
}

That makes sense! What a small but important detail! Thanks a lot! — Jean-Paul, Aug 19 '13 at 14:09
+1 you are welcome, note there are alyways two ways you can to a) read docs b) debug instets/set/preferredSize after setVisible(true) — mKorbel, Aug 19 '13 at 14:12
I tried a) but couldn't find anything. Never done b) so thank you for teaching me. — Jean-Paul, Aug 19 '13 at 14:19

score 1 · Answer 2 · answered Aug 19 '13 at 14:09

1

You can see here examples if you want Jean-Paul:

http://jmathtools.berlios.de/doku.php?id=jmathplot:tutorial

answered Aug 19 '13 at 14:09

LePeruvien

91
1
8

But all those examples are in an independent (popup) jFrame, not in another frame. – Jean-Paul Aug 19 '13 at 14:20

jmathplot doesn't work in swing application

2 Answers2

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