Returns blue-yellow-red color scale : Color « 2D Graphics GUI « Java

1. Java
2. 2D Graphics GUI
3. Color

Returns blue-yellow-red color scale

   



/**
 * 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 blue-yellow-red color scale.
   */
  public static Color[] byrColorScale() {
    int[][] rgb = {
        {0, 0, 0},
        {0, 0, 159},
        {0, 0, 191},
        {0, 0, 223},
        {0, 0, 255},
        {0, 32, 255},
        {0, 64, 255},
        {0, 96, 255},
        {0, 128, 255},
        {0, 159, 255},
        {0, 191, 255},
        {0, 223, 255},
        {0, 255, 255},
        {32, 255, 223},
        {64, 255, 191},
        {96, 255, 159},
        {128, 255, 128},
        {159, 255, 96},
        {191, 255, 64},
        {223, 255, 32},
        {255, 255, 0},
        {255, 223, 0},
        {255, 191, 0},
        {255, 159, 0},
        {255, 128, 0},
        {255, 96, 0},
        {255, 64, 0},
        {255, 32, 0},
        {255, 0, 0},
        {223, 0, 0},
        {191, 0, 0},
    };
    return getColorScale(rgb);
  }
  /**
   * 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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