示例#1
1
 public static final Color fromDouble(double v) {
   // inf = 255 255 0 yellow
   // 1 = 0 255 0 green
   // 0 = 0 0 0 black
   // -1 = 255 0 0 red
   // -inf = 255 0 255 magenta
   // nan = 0 255 255 cyan
   if (v == Double.MIN_VALUE || Double.isNaN(v)) return (Color.MAGENTA);
   else if (Double.isInfinite(v)) return (Color.CYAN);
   else if (v > 1.0)
     return (ColorMap.colorGreenToYellow[(int) (255.0 * Math.tanh((v - 1.0) / 10.0))]);
   else if (v > 0.0) return (ColorMap.colorBlackToGreen[(int) (255.0 * v)]);
   else if (v > -1.0) return (ColorMap.colorRedToBlack[(int) (255.0 * (v + 1.0))]);
   else return (ColorMap.colorRedToMagenta[(int) (255.0 * Math.tanh((-v - 1.0) / 10.0))]);
 }