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public static function map(num:Number, min1:Number, max1:Number, min2:Number, max2:Number, round:Boolean = false, constrainMin:Boolean = true, constrainMax:Boolean = true):Number
{	
  if (constrainMin && num < min1) return min2;	
  if (constrainMax && num > max1) return max2;

  var num1:Number = (num - min1) / (max1 - min1);	
  var num2:Number = (num1 * (max2 - min2)) + min2;	
  if (round) return Math.round(num2);	
    return num2;
}