001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.vis.general;
031
032import org.openimaj.image.FImage;
033import org.openimaj.image.colour.ColourMap;
034import org.openimaj.image.processing.resize.ResizeProcessor;
035import org.openimaj.vis.VisualisationImpl;
036
037/**
038 * Visualise heat maps
039 * @author Sina Samangooei (ss@ecs.soton.ac.uk)
040 */
041public class HeatMap extends VisualisationImpl<FImage>{
042        
043        /**
044         * 
045         */
046        private static final long serialVersionUID = -79182296227101887L;
047        private ColourMap cm;
048        /**
049         * @param width
050         * @param height
051         * @param map the colour map
052         */
053        public HeatMap(int width, int height, ColourMap map) {
054                super(width, height);
055                this.cm = map;
056        }
057        
058        /**
059         * Uses {@link ColourMap#Hot} by default
060         * @param width
061         * @param height
062         * 
063         */
064        public HeatMap(int width, int height) {
065                this(width,height,ColourMap.Hot);
066                
067        }
068        @Override
069        public void update() {
070                this.visImage.drawImage(cm.apply(data), 0, 0);
071        }
072        
073        /**
074         * @param d
075         */
076        public void setData(double[][] d){
077                FImage in = new FImage(d.length,d[0].length);
078                for (int y = 0; y < in.height; y++) {
079                        for (int x = 0; x < in.width; x++) {
080                                in.pixels[y][x] = (float) d[y][x];
081                        }
082                }
083                ResizeProcessor rp = new ResizeProcessor(this.getWidth(), this.getHeight());
084                setData(in.process(rp));
085        }
086        
087        
088
089}