public function initScatterSerie($ID)
    {
        if (isset($this->Data["ScatterSeries"][$ID])) {
            return null;
        }

        $this->Data["ScatterSeries"][$ID]["Description"] = "Scatter " . $ID;
        $this->Data["ScatterSeries"][$ID]["isDrawable"] = true;
        $this->Data["ScatterSeries"][$ID]["Picture"] = null;
        $this->Data["ScatterSeries"][$ID]["Ticks"] = 0;
        $this->Data["ScatterSeries"][$ID]["Weight"] = 0;

        if (isset($this->Palette[$ID])) {
            $this->Data["ScatterSeries"][$ID]["Color"] = $this->Palette[$ID];
        } else {
            $this->Data["ScatterSeries"][$ID]["Color"]["R"] = rand(0, 255);
            $this->Data["ScatterSeries"][$ID]["Color"]["G"] = rand(0, 255);
            $this->Data["ScatterSeries"][$ID]["Color"]["B"] = rand(0, 255);
            $this->Data["ScatterSeries"][$ID]["Color"]["Alpha"] = 100;
        }
    }