MapPanel.java

/*
 * Encog(tm) Java Examples v3.4
 * http://www.heatonresearch.com/encog/
 * https://github.com/encog/encog-java-examples
 *
 * Copyright 2008-2016 Heaton Research, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *   
 * For more information on Heaton Research copyrights, licenses 
 * and trademarks visit:
 * http://www.heatonresearch.com/copyright
 */
package org.encog.examples.neural.gui.som;

import java.awt.Color;
import java.awt.Graphics;

import javax.swing.JPanel;

import org.encog.mathutil.matrices.Matrix;

public class MapPanel extends JPanel {
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 7528474872067939033L;
	public static final int CELL_SIZE = 8;
	public static final int WIDTH = 50;
	public static final int HEIGHT = 50;

	private Matrix weights;
	
	public MapPanel(SomColors som)
	{
		this.weights = som.getNetwork().getWeights();
	}
	
	private int convertColor(double d)
	{
		//System.out.println(d);
		double result = 128*d;
		result+=128;
		result = Math.min(result, 255);
		result = Math.max(result, 0);
		return (int)result;
	}
	
	@Override
	public void paint(Graphics g)
	{
		for(int y = 0; y< HEIGHT; y++)
		{
			for(int x = 0; x< WIDTH; x++)
			{
				int index = (y*WIDTH)+x;
				int red = convertColor(weights.get(index,0));
				int green = convertColor(weights.get(index,1));
				int blue = convertColor(weights.get(index,2));
				g.setColor(new Color(red,green,blue));
				g.fillRect(x*CELL_SIZE, y*CELL_SIZE, CELL_SIZE, CELL_SIZE);
			}
		}
	}	
}