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<?php |
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/** |
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* Coordinate Factory |
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* |
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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\Factory; |
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use Location\Coordinate; |
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use Location\Ellipsoid; |
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/** |
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* Coordinate Factory |
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* |
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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 CoordinateFactory implements GeometryFactoryInterface |
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{ |
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/** |
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* Creates a Coordinate instance from the given string. |
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* |
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* The string is parsed by a regular expression for a known |
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* format of geographical coordinates. |
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* |
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* The simpler formats are tried first, before the string is |
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* checked for more complex coordinate represenations. |
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* |
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* @param string $string formatted geographical coordinate |
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* @param \Location\Ellipsoid $ellipsoid |
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* |
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* @return \Location\Coordinate |
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*/ |
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public static function fromString($string, Ellipsoid $ellipsoid = null) |
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{ |
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// The most simple format: decimal degrees without cardinal letters, |
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// e. g. "52.5, 13.5" or "53.25732 14.24984" |
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if (preg_match('/(-?\d{1,2}\.?\d*)[, ]\s*(-?\d{1,3}\.?\d*)/', $string, $match)) { |
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return new Coordinate($match[1], $match[2], $ellipsoid); |
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} |
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// Decimal degrees with cardinal letters, e. g. "N52.5, E13.5" or |
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// "40.2S, 135.3485W" |
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if (preg_match('/([NS]?\s*)(\d{1,2}\.?\d*)(\s*[NS]?)[, ]\s*([EW]?\s*)(\d{1,2}\.?\d*)(\s*[EW]?)/i', $string, $match)) { |
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$latitude = $match[2]; |
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if (trim(strtoupper($match[1])) === 'S' || trim(strtoupper($match[3])) === 'S') { |
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$latitude = - $latitude; |
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} |
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$longitude = $match[5]; |
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if (trim(strtoupper($match[4])) === 'W' || trim(strtoupper($match[6])) === 'W') { |
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$longitude = - $longitude; |
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} |
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return new Coordinate($latitude, $longitude, $ellipsoid); |
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} |
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throw new \InvalidArgumentException("Format of coordinates was not recognized"); |
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} |
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} |
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mjaschen /
phpgeo
