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<?php |
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declare(strict_types=1); |
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namespace PrinsFrank\PhpGeoSVG\Geometry\Position; |
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use PrinsFrank\PhpGeoSVG\Exception\InvalidPositionException; |
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class Position |
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{ |
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public const MIN_LONGITUDE = -180; |
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public const MAX_LONGITUDE = 180; |
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public const LONGITUDE_THRESHOLD = 1; |
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public const TOTAL_LONGITUDE = self::MAX_LONGITUDE - self::MIN_LONGITUDE; |
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public const MIN_LATITUDE = -90; |
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public const MAX_LATITUDE = 90; |
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public const LATITUDE_THRESHOLD = 1; |
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public const TOTAL_LATITUDE = self::MAX_LATITUDE - self::MIN_LATITUDE; |
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/** |
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* The coordinate reference system for all GeoJSON coordinates is a |
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* geographic coordinate reference system, using the World Geodetic |
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* System 1984 (WGS 84) [WGS84] datum, with longitude and latitude units |
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* of decimal degrees. This is equivalent to the coordinate reference |
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* system identified by the Open Geospatial Consortium (OGC) URN |
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* urn:ogc:def:crs:OGC::CRS84. An OPTIONAL third-position element SHALL |
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* be the height in meters above or below the WGS 84 reference |
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* ellipsoid. In the absence of elevation values, applications |
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* sensitive to height or depth SHOULD interpret positions as being at |
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* local ground or sea level |
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* |
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* @throws InvalidPositionException |
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*/ |
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public function __construct(public float $longitude, public float $latitude, public ?float $elevation = null) |
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{ |
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if ($this->longitude > (static::MAX_LONGITUDE + static::LONGITUDE_THRESHOLD) || $this->longitude < (static::MIN_LONGITUDE - static::LONGITUDE_THRESHOLD)) { |
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throw new InvalidPositionException('The longitude should be between ' . static::MIN_LONGITUDE . ' and ' . static::MAX_LONGITUDE . ', "' . $this->longitude . '" provided.'); |
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} |
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if ($this->latitude > (static::MAX_LATITUDE + static::LATITUDE_THRESHOLD) || $this->latitude < (static::MIN_LATITUDE - static::LATITUDE_THRESHOLD)) { |
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throw new InvalidPositionException('The latitude should be between ' . static::MIN_LATITUDE . ' and ' . static::MAX_LATITUDE . ', "' . $this->latitude . '" provided.'); |
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} |
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} |
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public function hasElevation(): bool |
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{ |
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return null !== $this->elevation && 0.0 !== $this->elevation; |
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} |
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} |
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PrinsFrank /
php-geo-svg
