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<?php |
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/** |
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* Coordinate Bounds Class |
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* |
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* PHP version 5.3 |
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* |
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* @category Location |
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* @author Marcus Jaschen <[email protected]> |
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* @license https://opensource.org/licenses/GPL-3.0 GPL |
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* @link https://github.com/mjaschen/phpgeo |
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*/ |
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namespace Location; |
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use Location\Coordinate; |
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/** |
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* Coordinate Bounds Class |
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* |
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* @category Location |
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* @author Marcus Jaschen <[email protected]> |
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* @license https://opensource.org/licenses/GPL-3.0 GPL |
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* @link https://github.com/mjaschen/phpgeo |
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*/ |
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class Bounds |
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{ |
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/** |
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* @var Coordinate |
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*/ |
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protected $northWest; |
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/** |
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* @var Coordinate |
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*/ |
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protected $southEast; |
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/** |
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* @param Coordinate $northWest |
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* @param Coordinate $southEast |
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*/ |
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public function __construct(Coordinate $northWest, Coordinate $southEast) |
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{ |
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$this->northWest = $northWest; |
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$this->southEast = $southEast; |
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} |
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/** |
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* Getter |
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* |
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* @return Coordinate |
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*/ |
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public function getNorthWest() |
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{ |
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return $this->northWest; |
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} |
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/** |
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* Getter |
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* |
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* @return Coordinate |
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*/ |
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public function getSouthEast() |
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{ |
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return $this->southEast; |
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} |
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/** |
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* @return float |
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*/ |
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public function getNorth() |
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{ |
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return $this->northWest->getLat(); |
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} |
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/** |
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* @return float |
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*/ |
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public function getSouth() |
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{ |
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return $this->southEast->getLat(); |
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} |
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/** |
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* @return float |
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*/ |
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public function getWest() |
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{ |
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return $this->northWest->getLng(); |
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} |
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/** |
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* @return float |
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*/ |
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public function getEast() |
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{ |
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return $this->southEast->getLng(); |
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} |
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/** |
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* Calculates the center of this bounds object and returns it as a |
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* Coordinate instance. |
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* |
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* @return Coordinate |
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*/ |
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public function getCenter() |
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{ |
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$centerLat = ($this->getNorth() + $this->getSouth()) / 2; |
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return new Coordinate($centerLat, $this->getCenterLng()); |
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} |
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/** |
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* @return float |
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*/ |
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protected function getCenterLng() |
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{ |
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$centerLng = ($this->getEast() + $this->getWest()) / 2; |
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$overlap = $this->getWest() > 0 && $this->getEast() < 0; |
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if ($overlap && $centerLng > 0) { |
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return -180 + $centerLng; |
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} |
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if ($overlap && $centerLng < 0) { |
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return 180 + $centerLng; |
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} |
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if ($overlap && $centerLng == 0) { |
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return 180; |
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} |
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return $centerLng; |
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} |
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} |
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mjaschen /
phpgeo
