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<?php |
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declare(strict_types=1); |
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namespace Location; |
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use Location\Distance\DistanceInterface; |
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use Location\Formatter\Coordinate\FormatterInterface; |
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/** |
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* Coordinate Implementation |
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* |
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* @author Marcus Jaschen <[email protected]> |
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*/ |
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class Coordinate implements GeometryInterface |
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{ |
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/** |
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* @var float |
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*/ |
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protected $lat; |
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/** |
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* @var float |
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*/ |
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protected $lng; |
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/** |
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* @var Ellipsoid |
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*/ |
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protected $ellipsoid; |
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/** |
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* @param float $lat -90.0 .. +90.0 |
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* @param float $lng -180.0 .. +180.0 |
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* @param Ellipsoid $ellipsoid if omitted, WGS-84 is used |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public function __construct(float $lat, float $lng, Ellipsoid $ellipsoid = null) |
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{ |
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if (! $this->isValidLatitude($lat)) { |
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throw new \InvalidArgumentException('Latitude value must be numeric -90.0 .. +90.0 (given: ' . $lat . ')'); |
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} |
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if (! $this->isValidLongitude($lng)) { |
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throw new \InvalidArgumentException( |
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'Longitude value must be numeric -180.0 .. +180.0 (given: ' . $lng . ')' |
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); |
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} |
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$this->lat = $lat; |
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$this->lng = $lng; |
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if ($ellipsoid instanceof Ellipsoid) { |
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$this->ellipsoid = $ellipsoid; |
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return; |
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} |
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$this->ellipsoid = Ellipsoid::createDefault(); |
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} |
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/** |
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* @return float |
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*/ |
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public function getLat(): float |
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{ |
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return $this->lat; |
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} |
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/** |
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* @return float |
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*/ |
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public function getLng(): float |
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{ |
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return $this->lng; |
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} |
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/** |
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* Returns an array containing the point |
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* |
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* @return Coordinate[] |
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*/ |
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public function getPoints(): array |
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{ |
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return [$this]; |
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} |
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/** |
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* @return Ellipsoid |
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*/ |
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public function getEllipsoid(): Ellipsoid |
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{ |
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return $this->ellipsoid; |
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} |
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/** |
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* Calculates the distance between the given coordinate |
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* and this coordinate. |
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* |
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* @param Coordinate $coordinate |
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* @param DistanceInterface $calculator instance of distance calculation class |
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* |
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* @return float |
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*/ |
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public function getDistance(Coordinate $coordinate, DistanceInterface $calculator): float |
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{ |
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return $calculator->getDistance($this, $coordinate); |
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} |
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/** |
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* @param FormatterInterface $formatter |
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* |
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* @return mixed |
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*/ |
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public function format(FormatterInterface $formatter) |
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{ |
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return $formatter->format($this); |
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} |
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/** |
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* Validates latitude |
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* |
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* @param float $latitude |
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* |
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* @return bool |
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*/ |
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protected function isValidLatitude(float $latitude): bool |
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{ |
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return $this->isNumericInBounds($latitude, -90.0, 90.0); |
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} |
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/** |
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* Validates longitude |
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* |
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* @param float $longitude |
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* |
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* @return bool |
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*/ |
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protected function isValidLongitude(float $longitude): bool |
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{ |
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return $this->isNumericInBounds($longitude, -180.0, 180.0); |
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} |
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/** |
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* Checks if the given value is (1) numeric, and (2) between lower |
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* and upper bounds (including the bounds values). |
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* |
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* @param float $value |
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* @param float $lower |
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* @param float $upper |
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* |
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* @return bool |
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*/ |
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protected function isNumericInBounds(float $value, float $lower, float $upper): bool |
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{ |
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return !($value < $lower || $value > $upper); |
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} |
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/** |
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* Returns the request in latitude and longitude strintring |
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* |
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* @return string |
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*/ |
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public function __toString() { |
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$string = $this->lat . "," . $this->lng; |
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return $string; |
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} |
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} |
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mjaschen /
phpgeo
