Returns color based on 0-9 scale ranging from green to yellow

   

/**
 * Utilities for GUI work.
 * @author Alex Kurzhanskiy
 * @version $Id: UtilGUI.java 38 2010-02-08 22:59:00Z akurzhan $
 */
import java.awt.Color;


public class Util {

  
  /**
   * Returns color based on 0-9 scale ranging from green to yellow.
   */
  public static Color gyColor(int i) {
    int[][] rgb = {
            {0, 164, 0},
            {19, 174, 0},
            {41, 184, 0},
            {65, 194, 0},
            {91, 204, 0},
            {119, 215, 0},
            {150, 225, 0},
            {183, 235, 0},
            {218, 245, 0},
            {255, 255, 0}
          };
    int ii = 0;
    if (i > 9)
      ii = 9;
    else
      ii = Math.max(i, ii);
    float[] hsb = Color.RGBtoHSB(rgb[ii][0], rgb[ii][1], rgb[ii][2], null);
    return Color.getHSBColor(hsb[0], hsb[1], hsb[2]);
  }
  /**
   * Returns n-dimensional array of colors for given nx3 integer array of RGB values. 
   */
  public static Color[] getColorScale(int[][] rgb) {
    if (rgb == null)
      return null;
    Color[] clr = new Color[rgb.length];
    for (int i = 0; i < rgb.length; i++) {
      float[] hsb =  Color.RGBtoHSB(rgb[i][0], rgb[i][1], rgb[i][2], null);
      clr[i] = Color.getHSBColor(hsb[0], hsb[1], hsb[2]);
    }
    return clr;
  }
}

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Returns color based on 0-9 scale ranging from green to yellow : Color « 2D Graphics GUI « Java

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