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The Waikato Environment for Knowledge Analysis (WEKA), a machine learning workbench. This version represents the developer version, the "bleeding edge" of development, you could say. New functionality gets added to this version.
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/*
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see .
 */

/*
 *    ScatterPlotMatrix.java
 *    Copyright (C) 2003-2012 University of Waikato, Hamilton, New Zealand
 *
 */

package weka.gui.beans;

import java.awt.BorderLayout;
import java.awt.GraphicsEnvironment;

import javax.swing.Icon;

import weka.core.Instances;
import weka.gui.visualize.MatrixPanel;

/**
 * Bean that encapsulates weka.gui.visualize.MatrixPanel for displaying a
 * scatter plot matrix.
 * 
 * @author Mark Hall
 * @version $Revision: 10216 $
 */
public class ScatterPlotMatrix extends DataVisualizer implements
  KnowledgeFlowApp.KFPerspective {

  /** for serialization */
  private static final long serialVersionUID = -657856527563507491L;

  protected MatrixPanel m_matrixPanel;

  public ScatterPlotMatrix() {
    java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment();
    if (!GraphicsEnvironment.isHeadless()) {
      appearanceFinal();
    }
  }

  /**
   * Global info for this bean
   * 
   * @return a String value
   */
  @Override
  public String globalInfo() {
    return "Visualize incoming data/training/test sets in a scatter "
      + "plot matrix.";
  }

  @Override
  protected void appearanceDesign() {
    m_matrixPanel = null;
    removeAll();
    m_visual = new BeanVisual("ScatterPlotMatrix", BeanVisual.ICON_PATH
      + "ScatterPlotMatrix.gif", BeanVisual.ICON_PATH
      + "ScatterPlotMatrix_animated.gif");
    setLayout(new BorderLayout());
    add(m_visual, BorderLayout.CENTER);
  }

  @Override
  protected void appearanceFinal() {
    removeAll();
    setLayout(new BorderLayout());
    setUpFinal();
  }

  @Override
  protected void setUpFinal() {
    if (m_matrixPanel == null) {
      m_matrixPanel = new MatrixPanel();
    }
    add(m_matrixPanel, BorderLayout.CENTER);
  }

  /**
   * Set instances for this bean. This method is a convenience method for
   * clients who use this component programatically
   * 
   * @param inst an Instances value
   * @exception Exception if an error occurs
   */
  @Override
  public void setInstances(Instances inst) throws Exception {
    if (m_design) {
      throw new Exception("This method is not to be used during design "
        + "time. It is meant to be used if this "
        + "bean is being used programatically as as "
        + "stand alone component.");
    }
    m_visualizeDataSet = inst;
    m_matrixPanel.setInstances(m_visualizeDataSet);
  }

  /**
   * Returns true if this perspective accepts instances
   * 
   * @return true if this perspective can accept instances
   */
  @Override
  public boolean acceptsInstances() {
    return true;
  }

  /**
   * Get the title of this perspective
   * 
   * @return the title of this perspective
   */
  @Override
  public String getPerspectiveTitle() {
    return "Scatter plot matrix";
  }

  /**
   * Get the tool tip text for this perspective.
   * 
   * @return the tool tip text for this perspective
   */
  @Override
  public String getPerspectiveTipText() {
    return "Scatter plot matrix";
  }

  /**
   * Get the icon for this perspective.
   * 
   * @return the Icon for this perspective (or null if the perspective does not
   *         have an icon)
   */
  @Override
  public Icon getPerspectiveIcon() {
    java.awt.Image pic = null;
    java.net.URL imageURL = this.getClass().getClassLoader()
      .getResource("weka/gui/beans/icons/application_view_tile.png");

    if (imageURL == null) {
    } else {
      pic = java.awt.Toolkit.getDefaultToolkit().getImage(imageURL);
    }
    return new javax.swing.ImageIcon(pic);
  }

  /**
   * Set active status of this perspective. True indicates that this perspective
   * is the visible active perspective in the KnowledgeFlow
   * 
   * @param active true if this perspective is the active one
   */
  @Override
  public void setActive(boolean active) {

  }

  /**
   * Set whether this perspective is "loaded" - i.e. whether or not the user has
   * opted to have it available in the perspective toolbar. The perspective can
   * make the decision as to allocating or freeing resources on the basis of
   * this.
   * 
   * @param loaded true if the perspective is available in the perspective
   *          toolbar of the KnowledgeFlow
   */
  @Override
  public void setLoaded(boolean loaded) {

  }

  /**
   * Set a reference to the main KnowledgeFlow perspective - i.e. the
   * perspective that manages flow layouts.
   * 
   * @param main the main KnowledgeFlow perspective.
   */
  @Override
  public void setMainKFPerspective(KnowledgeFlowApp.MainKFPerspective main) {

  }

  /**
   * Perform a named user request
   * 
   * @param request a string containing the name of the request to perform
   * @exception IllegalArgumentException if request is not supported
   */
  @Override
  public void performRequest(String request) {
    if (request.compareTo("Show plot") == 0) {
      try {
        // popup matrix panel
        if (!m_framePoppedUp) {
          m_framePoppedUp = true;
          final MatrixPanel vis = new MatrixPanel();
          vis.setInstances(m_visualizeDataSet);

          final javax.swing.JFrame jf = new javax.swing.JFrame("Visualize");
          jf.setSize(800, 600);
          jf.getContentPane().setLayout(new BorderLayout());
          jf.getContentPane().add(vis, BorderLayout.CENTER);
          jf.addWindowListener(new java.awt.event.WindowAdapter() {
            @Override
            public void windowClosing(java.awt.event.WindowEvent e) {
              jf.dispose();
              m_framePoppedUp = false;
            }
          });
          jf.setVisible(true);
          m_popupFrame = jf;
        } else {
          m_popupFrame.toFront();
        }
      } catch (Exception ex) {
        ex.printStackTrace();
        m_framePoppedUp = false;
      }
    } else {
      throw new IllegalArgumentException(request
        + " not supported (ScatterPlotMatrix)");
    }
  }

  public static void main(String[] args) {
    try {
      if (args.length != 1) {
        System.err.println("Usage: ScatterPlotMatrix ");
        System.exit(1);
      }
      java.io.Reader r = new java.io.BufferedReader(new java.io.FileReader(
        args[0]));
      Instances inst = new Instances(r);
      final javax.swing.JFrame jf = new javax.swing.JFrame();
      jf.getContentPane().setLayout(new java.awt.BorderLayout());
      final ScatterPlotMatrix as = new ScatterPlotMatrix();
      as.setInstances(inst);

      jf.getContentPane().add(as, java.awt.BorderLayout.CENTER);
      jf.addWindowListener(new java.awt.event.WindowAdapter() {
        @Override
        public void windowClosing(java.awt.event.WindowEvent e) {
          jf.dispose();
          System.exit(0);
        }
      });
      jf.setSize(800, 600);
      jf.setVisible(true);
    } catch (Exception ex) {
      ex.printStackTrace();
      System.err.println(ex.getMessage());
    }
  }
}