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<?php |
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declare(strict_types=1); |
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namespace KDTree\Search; |
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use KDTree\Exceptions\InvalidDimensionsCount; |
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use KDTree\Interfaces\{KDTreeInterface, |
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NodeInterface, |
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PartitionInterface, |
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PartitionSearchInterface, |
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PointInterface, |
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PointsListInterface}; |
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use KDTree\Structure\PointsList; |
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/** |
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* Class PartitionSearch |
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* |
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* @package KDTree\Search |
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*/ |
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final class PartitionSearch implements PartitionSearchInterface |
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{ |
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/** |
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* @var KDTreeInterface |
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*/ |
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private $tree; |
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/** |
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* @param KDTreeInterface $tree |
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*/ |
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public function __construct(KDTreeInterface $tree) |
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{ |
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$this->tree = $tree; |
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} |
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/** |
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* @param PartitionInterface $partition |
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* |
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* @return PointsListInterface<PointInterface> |
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* @throws InvalidDimensionsCount |
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*/ |
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public function find(PartitionInterface $partition): PointsListInterface |
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{ |
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$pointsList = new PointsList($this->tree->getDimensions()); |
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$this->partitionAdd($this->tree->getRoot(), $partition, $pointsList); |
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return $pointsList; |
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} |
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/** |
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* @param NodeInterface|null $node |
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* @param PartitionInterface $partition |
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* @param PointsListInterface<PointInterface> $pointsList |
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*/ |
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private function partitionAdd( |
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?NodeInterface $node, |
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PartitionInterface $partition, |
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PointsListInterface $pointsList |
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): void { |
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if (null !== $node) { |
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if ($partition->contains($node->getPoint())) { |
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$pointsList->addPoint($node->getPoint()); |
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} |
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$this->partitionAdd($node->getLeft(), $partition, $pointsList); |
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$this->partitionAdd($node->getRight(), $partition, $pointsList); |
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} |
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} |
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} |
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f1r3starter /
kdtree
