RedeyeVentures\GeoPattern\GeoPattern::map PHP Метод

    protected function map($value, $vMin, $vMax, $dMin, $dMax)
    {
        $vValue = floatval($value);
        $vRange = $vMax - $vMin;
        $dRange = $dMax - $dMin;
        return ($vValue - $vMin) * $dRange / $vRange + $dMin;
    }