Flex的HSV to RGB ，RGB to HSV 算法

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package qs.utils
{
public class ColorUtils
{
 public static function HSVToRGB(hsv:Object):Number
 {
  var src:Object = hsv;
  var dst:Number
 
  var h:Number,s:Number,v:Number;
 
  h = hsv.h;
  s = hsv.s;
  v = hsv.v;
  
  var i:Number;
  var f:Number, p:Number, q:Number, t:Number;
  var r:Number,g:Number,b:Number;
  if( s == 0 ) {
   // achromatic (grey)
   v = Math.floor(v*255);
   dst = (v << 16) + (v << 8) + v;
   return dst;
  }
  h /= 60;   // sector 0 to 5
  i = Math.floor( h );
  f = h - i;   // factorial part of h
  p = v * ( 1 - s );
  q = v * ( 1 - s * f );