leafrenderer.java

一个很好的LIBSVM的JAVA源码。对于要研究和改进SVM算法的学者。可以参考。来自数据挖掘工具YALE工具包。

/*
 *  YALE - Yet Another Learning Environment
 *  Copyright (C) 2001-2004
 *      Simon Fischer, Ralf Klinkenberg, Ingo Mierswa, 
 *          Katharina Morik, Oliver Ritthoff
 *      Artificial Intelligence Unit
 *      Computer Science Department
 *      University of Dortmund
 *      44221 Dortmund,  Germany
 *  email: [e-mail]
 *  web:   http://yale.cs.uni-dortmund.de/
 *
 *  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 2 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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 *  USA.
 */
package edu.udo.cs.yale.gui;

import edu.udo.cs.yale.operator.Operator;
import edu.udo.cs.yale.tools.LogService;
import edu.udo.cs.yale.tools.Tools;

import java.awt.*;

public class LeafRenderer extends OperatorRenderer {

    private static final int BORDER     = 10;

    public void drawOperator(Operator op, Graphics2D g) {
	Dimension d = getSize(op,g);

	g.setPaint(SwingTools.makeBluePaint(d.getWidth(), d.getHeight()));
	g.fillRect(0, 0, (int)d.getWidth(), (int)d.getHeight());
	g.setPaint(Color.black);
	g.setStroke(new BasicStroke(3));
	g.drawRect(0, 0, (int)d.getWidth(), (int)d.getHeight());
	Graphics2D g2 = (Graphics2D)g.create();
	g2.translate(BORDER, BORDER);
	drawName(op, g2);
	g2.dispose();
    }

    public Dimension getSize(Operator operator, Graphics2D g) {
	Dimension d = getNameSize(operator, g);
	return new Dimension((int)(d.getWidth()+2*BORDER), (int)(d.getHeight()+2*BORDER));
    }

}