001/*
002 *                  BioJava development code
003 *
004 * This code may be freely distributed and modified under the
005 * terms of the GNU Lesser General Public Licence.  This should
006 * be distributed with the code.  If you do not have a copy,
007 * see:
008 *
009 *      http://www.gnu.org/copyleft/lesser.html
010 *
011 * Copyright for this code is held jointly by the individual
012 * authors.  These should be listed in @author doc comments.
013 *
014 * For more information on the BioJava project and its aims,
015 * or to join the biojava-l mailing list, visit the home page
016 * at:
017 *
018 *      http://www.biojava.org/
019 *
020 * Created on Aug 3, 2007
021 */
022package org.biojava.nbio.structure.gui.util.color;
023
024import java.awt.*;
025
026
027/**
028 * Color Mapper which mimics the default coloring of JMatrixPanel pixels.
029 *
030 * Assumes inputs in the range [0,max]. These are mapped to HSB colors such
031 * that the hue and brightness are from [1,0].
032 * @author Spencer Bliven
033 *
034 */
035public class DefaultMatrixMapper implements ContinuousColorMapper {
036
037        private double scalevalue;
038        private float saturation;
039
040        public DefaultMatrixMapper(double scale, float saturation ) {
041                this.scalevalue = scale;
042                this.saturation = saturation;
043        }
044        /**
045         * @param value
046         * @return
047         * @see org.biojava.nbio.structure.gui.util.color.ContinuousColorMapper#getColor(double)
048         */
049        @Override
050        public Color getColor(double value) {
051                float hue = 1.0f;
052                hue = (float)(1-(value/scalevalue));
053                if (hue < 0)
054                        hue = 0;
055
056                return Color.getHSBColor(hue,saturation,hue);
057        }
058
059        /**
060         * @return the scalevalue
061         */
062        public double getScalevalue() {
063                return scalevalue;
064        }
065        /**
066         * @param scalevalue the scalevalue to set
067         */
068        public void setScalevalue(double scalevalue) {
069                this.scalevalue = scalevalue;
070        }
071        /**
072         * @return the saturation
073         */
074        public float getSaturation() {
075                return saturation;
076        }
077        /**
078         * @param saturation the saturation to set
079         */
080        public void setSaturation(float saturation) {
081                this.saturation = saturation;
082        }
083}