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<?php |
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/** |
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* PHPCoord. |
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* |
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* @author Doug Wright |
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*/ |
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declare(strict_types=1); |
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namespace PHPCoord; |
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use function cos; |
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use DateTime; |
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use DateTimeImmutable; |
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use DateTimeInterface; |
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use PHPCoord\CoordinateOperation\AutoConversion; |
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use PHPCoord\CoordinateOperation\ConvertiblePoint; |
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use PHPCoord\CoordinateReferenceSystem\Compound; |
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use PHPCoord\CoordinateReferenceSystem\CoordinateReferenceSystem; |
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use PHPCoord\CoordinateReferenceSystem\Geographic2D; |
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use PHPCoord\CoordinateReferenceSystem\Geographic3D; |
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use PHPCoord\CoordinateReferenceSystem\Projected; |
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use PHPCoord\CoordinateReferenceSystem\Vertical; |
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use PHPCoord\Exception\InvalidCoordinateReferenceSystemException; |
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use PHPCoord\Exception\UnknownConversionException; |
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use PHPCoord\UnitOfMeasure\Angle\Angle; |
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use PHPCoord\UnitOfMeasure\Length\Length; |
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use PHPCoord\UnitOfMeasure\Length\Metre; |
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use function sin; |
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use function sqrt; |
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/** |
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* Coordinate representing a point expressed in 2 different CRSs (2D horizontal + 1D Vertical). |
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*/ |
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class CompoundPoint extends Point implements ConvertiblePoint |
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{ |
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use AutoConversion { |
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convert as protected autoConvert; |
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} |
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/** |
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* Horizontal point. |
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* @var GeographicPoint|ProjectedPoint |
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*/ |
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protected Point $horizontalPoint; |
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/** |
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* Vertical point. |
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*/ |
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protected VerticalPoint $verticalPoint; |
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/** |
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* Coordinate reference system. |
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*/ |
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protected Compound $crs; |
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/** |
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* Coordinate epoch (date for which the specified coordinates represented this point). |
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*/ |
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protected ?DateTimeImmutable $epoch; |
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/** |
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* Constructor. |
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* @param GeographicPoint|ProjectedPoint $horizontalPoint |
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*/ |
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protected function __construct(Point $horizontalPoint, VerticalPoint $verticalPoint, Compound $crs, ?DateTimeInterface $epoch = null) |
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{ |
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$this->horizontalPoint = $horizontalPoint; |
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$this->verticalPoint = $verticalPoint; |
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$this->crs = $crs; |
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if ($epoch instanceof DateTime) { |
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$epoch = DateTimeImmutable::createFromMutable($epoch); |
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} |
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$this->epoch = $epoch; |
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} |
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/** |
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* @param GeographicPoint|ProjectedPoint $horizontalPoint |
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*/ |
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public static function create(Point $horizontalPoint, VerticalPoint $verticalPoint, Compound $crs, ?DateTimeInterface $epoch = null) |
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{ |
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return new static($horizontalPoint, $verticalPoint, $crs, $epoch); |
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} |
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public function getHorizontalPoint(): Point |
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{ |
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return $this->horizontalPoint; |
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} |
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public function getVerticalPoint(): VerticalPoint |
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{ |
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return $this->verticalPoint; |
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} |
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public function getCRS(): Compound |
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{ |
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return $this->crs; |
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} |
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public function getCoordinateEpoch(): ?DateTimeImmutable |
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{ |
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return $this->epoch; |
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} |
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/** |
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* Calculate distance between two points. |
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*/ |
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public function calculateDistance(Point $to): Length |
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{ |
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try { |
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if ($to instanceof ConvertiblePoint) { |
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$to = $to->convert($this->crs); |
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} |
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} finally { |
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if ($to->getCRS()->getSRID() !== $this->crs->getSRID()) { |
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throw new InvalidCoordinateReferenceSystemException('Can only calculate distances between two points in the same CRS'); |
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} |
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/* @var CompoundPoint $to */ |
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return $this->horizontalPoint->calculateDistance($to->horizontalPoint); |
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} |
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} |
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public function convert(CoordinateReferenceSystem $to, bool $ignoreBoundaryRestrictions = false): Point |
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{ |
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try { |
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return $this->autoConvert($to, $ignoreBoundaryRestrictions); |
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} catch (UnknownConversionException $e) { |
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if (($to instanceof Geographic2D || $to instanceof Projected) && $this->getHorizontalPoint() instanceof ConvertiblePoint) { |
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return $this->getHorizontalPoint()->convert($to, $ignoreBoundaryRestrictions); |
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} |
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} |
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} |
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public function __toString(): string |
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{ |
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return "({$this->horizontalPoint}, {$this->verticalPoint})"; |
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} |
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/** |
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* Geographic2D with Height Offsets. |
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* This transformation allows calculation of coordinates in the target system by adding the parameter value to the |
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* coordinate values of the point in the source system. |
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*/ |
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public function geographic2DWithHeightOffsets( |
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Geographic3D $to, |
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Angle $latitudeOffset, |
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Angle $longitudeOffset, |
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Length $geoidUndulation |
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): GeographicPoint { |
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$toLatitude = $this->getHorizontalPoint()->getLatitude()->add($latitudeOffset); |
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$toLongitude = $this->getHorizontalPoint()->getLongitude()->add($longitudeOffset); |
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$toHeight = $this->getVerticalPoint()->getHeight()->add($geoidUndulation); |
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return GeographicPoint::create($toLatitude, $toLongitude, $toHeight, $to, $this->epoch); |
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} |
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/** |
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* Vertical Offset and Slope |
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* This transformation allows calculation of height in the target system by applying the parameter values to the |
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* height value of the point in the source system. |
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*/ |
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1 |
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public function verticalOffsetAndSlope( |
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Compound $to, |
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Angle $ordinate1OfEvaluationPoint, |
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Angle $ordinate2OfEvaluationPoint, |
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Length $verticalOffset, |
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Angle $inclinationInLatitude, |
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Angle $inclinationInLongitude |
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): self { |
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$latitude = $this->horizontalPoint->getLatitude()->asRadians()->getValue(); |
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$longitude = $this->horizontalPoint->getLongitude()->asRadians()->getValue(); |
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$latitudeOrigin = $ordinate1OfEvaluationPoint->asRadians()->getValue(); |
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$longitudeOrigin = $ordinate2OfEvaluationPoint->asRadians()->getValue(); |
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$a = $this->horizontalPoint->getCRS()->getDatum()->getEllipsoid()->getSemiMajorAxis()->asMetres()->getValue(); |
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$e2 = $this->horizontalPoint->getCRS()->getDatum()->getEllipsoid()->getEccentricitySquared(); |
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$rhoOrigin = $a * (1 - $e2) / (1 - $e2 * sin($latitudeOrigin) ** 2) ** 1.5; |
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$nuOrigin = $a / sqrt(1 - $e2 * (sin($latitudeOrigin) ** 2)); |
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$latitudeTerm = new Metre($inclinationInLatitude->asRadians()->getValue() * $rhoOrigin * ($latitude - $latitudeOrigin)); |
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$longitudeTerm = new Metre($inclinationInLongitude->asRadians()->getValue() * $nuOrigin * ($longitude - $longitudeOrigin) * cos($latitude)); |
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$newVerticalHeight = $this->verticalPoint->getHeight()->add($verticalOffset)->add($latitudeTerm)->add($longitudeTerm); |
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$newVerticalPoint = VerticalPoint::create($newVerticalHeight, $to->getVertical()); |
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return static::create($this->horizontalPoint, $newVerticalPoint, $to); |
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} |
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} |
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Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a given class or a super-class is assigned to a property that is type hinted more strictly.
Either this assignment is in error or an instanceof check should be added for that assignment.