source: ether_megapoli/trunk/service/implementation/gov2/noaa/pmel/util/IndexedColorMap.java @ 192

package gov.noaa.pmel.util;

import java.util.*;
import java.awt.*;


public class IndexedColorMap {
        String mParamName;
        double mMinVal;
        double mMaxVal;
        double[] mVals = null;
        Color[] mColors = null;
        int mNumColors;
        ColorMap mColorMap;
        
        public IndexedColorMap(ColorMap inCM, int numColors) {
                mNumColors = numColors;
                mColorMap = inCM;
                mVals = new double[mNumColors];
                mColors = new Color[mNumColors];
                
                // initialize the indexed colormap
                mMinVal = mColorMap.getMinValue();
                mMaxVal = mColorMap.getMaxValue();
                mParamName = new String(mColorMap.getParamName());
                
                double delta = (mMaxVal - mMinVal)/(double)mNumColors;
                
                for (int i=0; i<mNumColors; i++) {
                        mVals[i] = mMinVal + (double)i * delta;
                }
                
                mVals[mNumColors-1] = mMaxVal;
                
                for (int i=0; i<mNumColors; i++) {
                        mColors[i] = mColorMap.getColor(mVals[i]);
                }
        }
        
        public IndexedColorMap(IndexedColorMap inMap) {
                // copy constructor
        }
        
        // public methods
        public Color getColor(double inVal) {
                return new Color(1.0f, 1.0f, 1.0f);
        }
        
        public Color getColor(int index) {
                if (index < 0)
                        return mColors[0];
                else if (index >= mNumColors)
                        return mColors[mNumColors-1];
                else
                        return mColors[index];
        }
        
        public Color[] getColors() {
                return mColors;
        }
        
        public String getParamName() {
                return mParamName;
        }
}