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<?php |
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/* |
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* This file is part of the Geotools library. |
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* |
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* (c) Antoine Corcy <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace League\Geotools\Polygon; |
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use League\Geotools\BoundingBox\BoundingBox; |
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use League\Geotools\BoundingBox\BoundingBoxInterface; |
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use League\Geotools\Coordinate\Coordinate; |
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use League\Geotools\Coordinate\CoordinateCollection; |
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use League\Geotools\Coordinate\CoordinateInterface; |
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use League\Geotools\Coordinate\Ellipsoid; |
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/** |
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* @author Gabriel Bull <[email protected]> |
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*/ |
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class Polygon implements PolygonInterface, \Countable, \IteratorAggregate, \ArrayAccess, \JsonSerializable |
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{ |
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const TYPE = 'POLYGON'; |
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/** |
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* @var CoordinateCollection |
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*/ |
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private $coordinates; |
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/** |
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* @var BoundingBoxInterface |
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*/ |
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private $boundingBox; |
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/** |
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* @var boolean |
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*/ |
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private $hasCoordinate = false; |
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/** |
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* @var integer |
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*/ |
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private $precision = 8; |
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/** |
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* @param null|array|CoordinateCollection $coordinates |
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*/ |
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public function __construct($coordinates = null) |
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{ |
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if (is_array($coordinates) || null === $coordinates) { |
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$this->coordinates = new CoordinateCollection; |
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} elseif ($coordinates instanceof CoordinateCollection) { |
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$this->coordinates = $coordinates; |
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$this->hasCoordinate = $coordinates->count() > 0; |
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} else { |
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throw new \InvalidArgumentException; |
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} |
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$this->boundingBox = new BoundingBox($this); |
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if (is_array($coordinates)) { |
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$this->set($coordinates); |
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} |
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} |
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/** |
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* @return string |
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*/ |
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public function getGeometryType() |
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{ |
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return self::TYPE; |
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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() |
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{ |
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return $this->coordinates->getEllipsoid(); |
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} |
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/** |
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* @return Coordinate |
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*/ |
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public function getCoordinate() |
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{ |
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return $this->coordinates->offsetGet(0); |
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} |
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/** |
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* @return boolean |
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*/ |
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public function isEmpty() |
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{ |
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return !$this->hasCoordinate; |
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} |
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/** |
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* @param CoordinateInterface $coordinate |
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* @return boolean |
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*/ |
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public function pointInPolygon(CoordinateInterface $coordinate) |
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{ |
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if (!$this->hasCoordinate) { |
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return false; |
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} |
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if (!$this->boundingBox->pointInBoundingBox($coordinate)) { |
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return false; |
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} |
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if ($this->pointOnVertex($coordinate)) { |
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return true; |
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} |
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if ($this->pointOnBoundary($coordinate)) { |
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return true; |
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} |
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$total = $this->count(); |
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$intersections = 0; |
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for ($i = 1; $i < $total; $i++) { |
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$currentVertex = $this->get($i - 1); |
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$nextVertex = $this->get($i); |
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if (bccomp( |
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$coordinate->getLatitude(), |
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min($currentVertex->getLatitude(), $nextVertex->getLatitude()), |
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$this->getPrecision() |
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) === 1 && |
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bccomp( |
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$coordinate->getLatitude(), |
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max($currentVertex->getLatitude(), $nextVertex->getLatitude()), |
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$this->getPrecision() |
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) <= 0 && |
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bccomp( |
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$coordinate->getLongitude(), |
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max($currentVertex->getLongitude(), $nextVertex->getLongitude()), |
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$this->getPrecision() |
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) <= 0 && |
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bccomp( |
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$currentVertex->getLatitude(), |
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$nextVertex->getLatitude(), |
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$this->getPrecision() |
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) !== 0 |
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) { |
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$xinters = |
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($coordinate->getLatitude() - $currentVertex->getLatitude()) * |
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($nextVertex->getLongitude() - $currentVertex->getLongitude()) / |
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($nextVertex->getLatitude() - $currentVertex->getLatitude()) + |
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$currentVertex->getLongitude(); |
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if (bccomp( |
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$currentVertex->getLongitude(), |
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$nextVertex->getLongitude(), |
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$this->getPrecision() |
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) === 0 || |
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bccomp( |
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$coordinate->getLongitude(), |
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$xinters, |
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$this->getPrecision() |
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) <= 0 |
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) { |
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$intersections++; |
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} |
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} |
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} |
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if ($intersections % 2 != 0) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* @param CoordinateInterface $coordinate |
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* @return boolean |
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*/ |
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public function pointOnBoundary(CoordinateInterface $coordinate) |
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{ |
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$total = $this->count(); |
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for ($i = 1; $i <= $total; $i++) { |
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$currentVertex = $this->get($i - 1); |
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$nextVertex = $this->get($i); |
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if (null === $nextVertex) { |
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$nextVertex = $this->get(0); |
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} |
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// Check if coordinate is on a horizontal boundary |
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if (bccomp( |
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$currentVertex->getLatitude(), |
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$nextVertex->getLatitude(), |
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$this->getPrecision() |
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) === 0 && |
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bccomp( |
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$currentVertex->getLatitude(), |
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$coordinate->getLatitude(), |
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$this->getPrecision() |
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) === 0 && |
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bccomp( |
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$coordinate->getLongitude(), |
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min($currentVertex->getLongitude(), $nextVertex->getLongitude()), |
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$this->getPrecision() |
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) === 1 && |
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bccomp( |
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$coordinate->getLongitude(), |
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max($currentVertex->getLongitude(), $nextVertex->getLongitude()), |
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$this->getPrecision() |
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) === -1 |
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) { |
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return true; |
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} |
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// Check if coordinate is on a boundary |
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if (bccomp( |
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$coordinate->getLatitude(), |
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min($currentVertex->getLatitude(), $nextVertex->getLatitude()), |
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$this->getPrecision() |
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) === 1 && |
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bccomp( |
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$coordinate->getLatitude(), |
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max($currentVertex->getLatitude(), $nextVertex->getLatitude()), |
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$this->getPrecision() |
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) <= 0 && |
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bccomp( |
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$coordinate->getLongitude(), |
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max($currentVertex->getLongitude(), $nextVertex->getLongitude()), |
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$this->getPrecision() |
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) <= 0 && |
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bccomp( |
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$currentVertex->getLatitude(), |
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$nextVertex->getLatitude(), |
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$this->getPrecision() |
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) !== 0 |
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) { |
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$xinters = |
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($coordinate->getLatitude() - $currentVertex->getLatitude()) * |
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($nextVertex->getLongitude() - $currentVertex->getLongitude()) / |
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($nextVertex->getLatitude() - $currentVertex->getLatitude()) + |
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$currentVertex->getLongitude(); |
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if (bccomp($xinters, $coordinate->getLongitude(), $this->getPrecision()) === 0) { |
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return true; |
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} |
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} |
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} |
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return false; |
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} |
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/** |
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* @param CoordinateInterface $coordinate |
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* @return boolean |
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*/ |
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public function pointOnVertex(CoordinateInterface $coordinate) |
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{ |
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foreach ($this->coordinates as $vertexCoordinate) { |
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if (bccomp( |
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$vertexCoordinate->getLatitude(), |
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$coordinate->getLatitude(), |
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$this->getPrecision() |
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) === 0 && |
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bccomp( |
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$vertexCoordinate->getLongitude(), |
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$coordinate->getLongitude(), |
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$this->getPrecision() |
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) === 0 |
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) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getCoordinates() |
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{ |
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return $this->coordinates; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function setCoordinates(CoordinateCollection $coordinates) |
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{ |
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$this->coordinates = $coordinates; |
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$this->boundingBox->setPolygon($this); |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function toArray() |
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{ |
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return $this->coordinates->toArray(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function jsonSerialize() |
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{ |
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return $this->coordinates->jsonSerialize(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function offsetExists($offset) |
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{ |
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return $this->coordinates->offsetExists($offset); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->coordinates->offsetGet($offset); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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$this->coordinates->offsetSet($offset, $value); |
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$this->boundingBox->setPolygon($this); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function offsetUnset($offset) |
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{ |
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$retval = $this->coordinates->offsetUnset($offset); |
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$this->boundingBox->setPolygon($this); |
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return $retval; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function count() |
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{ |
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return $this->coordinates->count(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getIterator() |
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{ |
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return $this->coordinates->getIterator(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function get($key) |
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{ |
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return $this->coordinates->get($key); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function set($key, CoordinateInterface $coordinate = null) |
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{ |
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if (is_array($key)) { |
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$values = $key; |
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} elseif (null !== $coordinate) { |
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$values = array($key => $coordinate); |
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} else { |
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throw new \InvalidArgumentException; |
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} |
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17 |
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foreach ($values as $key => $value) { |
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17 |
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if (!$value instanceof CoordinateInterface) { |
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$value = new Coordinate($value); |
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} |
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$this->coordinates->set($key, $value); |
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} |
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$this->hasCoordinate = true; |
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$this->boundingBox->setPolygon($this); |
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} |
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|
|
|
|
400
|
|
|
/** |
401
|
|
|
* {@inheritDoc} |
402
|
|
|
*/ |
403
|
1 |
|
public function add(CoordinateInterface $coordinate) |
404
|
|
|
{ |
405
|
1 |
|
$retval = $this->coordinates->add($coordinate); |
406
|
|
|
|
407
|
1 |
|
$this->hasCoordinate = true; |
408
|
1 |
|
$this->boundingBox->setPolygon($this); |
409
|
|
|
|
410
|
1 |
|
return $retval; |
411
|
|
|
} |
412
|
|
|
|
413
|
|
|
/** |
414
|
|
|
* {@inheritDoc} |
415
|
|
|
*/ |
416
|
|
|
public function remove($key) |
417
|
|
|
{ |
418
|
|
|
$retval = $this->coordinates->remove($key); |
419
|
|
|
|
420
|
|
|
if (!count($this->coordinates)) { |
421
|
|
|
$this->hasCoordinate = false; |
422
|
|
|
} |
423
|
|
|
$this->boundingBox->setPolygon($this); |
424
|
|
|
|
425
|
|
|
return $retval; |
426
|
|
|
} |
427
|
|
|
|
428
|
|
|
/** |
429
|
|
|
* @return integer |
430
|
|
|
*/ |
431
|
22 |
|
public function getPrecision() |
432
|
|
|
{ |
433
|
22 |
|
return $this->precision; |
434
|
|
|
} |
435
|
|
|
|
436
|
|
|
/** |
437
|
|
|
* @param integer $precision |
438
|
|
|
* @return $this |
439
|
|
|
*/ |
440
|
1 |
|
public function setPrecision($precision) |
441
|
|
|
{ |
442
|
1 |
|
$this->boundingBox->setPrecision($precision); |
443
|
1 |
|
$this->precision = $precision; |
444
|
|
|
|
445
|
1 |
|
return $this; |
446
|
|
|
} |
447
|
|
|
|
448
|
|
|
/** |
449
|
|
|
* @return BoundingBoxInterface |
450
|
|
|
*/ |
451
|
2 |
|
public function getBoundingBox() |
452
|
|
|
{ |
453
|
2 |
|
return $this->boundingBox; |
454
|
|
|
} |
455
|
|
|
|
456
|
|
|
/** |
457
|
|
|
* @param BoundingBoxInterface $boundingBox |
458
|
|
|
* @return $this |
459
|
|
|
*/ |
460
|
|
|
public function setBoundingBox(BoundingBoxInterface $boundingBox) |
461
|
|
|
{ |
462
|
|
|
$this->boundingBox = $boundingBox; |
463
|
|
|
|
464
|
|
|
return $this; |
465
|
|
|
} |
466
|
|
|
} |
467
|
|
|
|
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()
can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.