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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\CoordinateOperation; |
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use function abs; |
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use function array_column; |
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use function array_shift; |
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use function array_sum; |
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use function array_unique; |
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use function assert; |
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use function class_exists; |
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use function count; |
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use DateTimeImmutable; |
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use function in_array; |
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use PHPCoord\CompoundPoint; |
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use PHPCoord\CoordinateReferenceSystem\Compound; |
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use PHPCoord\CoordinateReferenceSystem\CoordinateReferenceSystem; |
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use PHPCoord\CoordinateReferenceSystem\Geocentric; |
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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\UnknownConversionException; |
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use PHPCoord\GeocentricPoint; |
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use PHPCoord\GeographicPoint; |
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use PHPCoord\Geometry\BoundingArea; |
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use PHPCoord\Geometry\Extents\RegionMap; |
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use PHPCoord\Point; |
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use PHPCoord\ProjectedPoint; |
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use PHPCoord\UnitOfMeasure\Time\Year; |
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use function str_starts_with; |
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use function usort; |
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/** |
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* @internal |
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*/ |
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trait AutoConversion |
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{ |
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private int $maxChainDepth = 6; // if traits could have constants... |
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protected static array $methodsThatRequireCoordinateEpoch = [ // if traits could have constants... |
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CoordinateOperationMethods::EPSG_TIME_DEPENDENT_COORDINATE_FRAME_ROTATION_GEOCEN => CoordinateOperationMethods::EPSG_TIME_DEPENDENT_COORDINATE_FRAME_ROTATION_GEOCEN, |
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CoordinateOperationMethods::EPSG_TIME_DEPENDENT_COORDINATE_FRAME_ROTATION_GEOG2D => CoordinateOperationMethods::EPSG_TIME_DEPENDENT_COORDINATE_FRAME_ROTATION_GEOG2D, |
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CoordinateOperationMethods::EPSG_TIME_DEPENDENT_COORDINATE_FRAME_ROTATION_GEOG3D => CoordinateOperationMethods::EPSG_TIME_DEPENDENT_COORDINATE_FRAME_ROTATION_GEOG3D, |
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CoordinateOperationMethods::EPSG_TIME_DEPENDENT_POSITION_VECTOR_TFM_GEOCENTRIC => CoordinateOperationMethods::EPSG_TIME_DEPENDENT_POSITION_VECTOR_TFM_GEOCENTRIC, |
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CoordinateOperationMethods::EPSG_TIME_DEPENDENT_POSITION_VECTOR_TFM_GEOG2D => CoordinateOperationMethods::EPSG_TIME_DEPENDENT_POSITION_VECTOR_TFM_GEOG2D, |
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CoordinateOperationMethods::EPSG_TIME_DEPENDENT_POSITION_VECTOR_TFM_GEOG3D => CoordinateOperationMethods::EPSG_TIME_DEPENDENT_POSITION_VECTOR_TFM_GEOG3D, |
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CoordinateOperationMethods::EPSG_TIME_SPECIFIC_COORDINATE_FRAME_ROTATION_GEOCEN => CoordinateOperationMethods::EPSG_TIME_SPECIFIC_COORDINATE_FRAME_ROTATION_GEOCEN, |
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CoordinateOperationMethods::EPSG_TIME_SPECIFIC_POSITION_VECTOR_TRANSFORM_GEOCEN => CoordinateOperationMethods::EPSG_TIME_SPECIFIC_POSITION_VECTOR_TRANSFORM_GEOCEN, |
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]; |
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protected static array $methodsThatRequireASpecificEpoch = [ // if traits could have constants... |
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CoordinateOperationMethods::EPSG_TIME_SPECIFIC_COORDINATE_FRAME_ROTATION_GEOCEN => CoordinateOperationMethods::EPSG_TIME_SPECIFIC_COORDINATE_FRAME_ROTATION_GEOCEN, |
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CoordinateOperationMethods::EPSG_TIME_SPECIFIC_POSITION_VECTOR_TRANSFORM_GEOCEN => CoordinateOperationMethods::EPSG_TIME_SPECIFIC_POSITION_VECTOR_TRANSFORM_GEOCEN, |
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]; |
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private static array $completePathCache = []; |
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462 |
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public function convert(CoordinateReferenceSystem $to, bool $ignoreBoundaryRestrictions = false): Point |
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{ |
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if ($this->getCRS() == $to) { |
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return $this; |
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} |
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if (!str_starts_with($to->getSRID(), CoordinateReferenceSystem::CRS_SRID_PREFIX_EPSG) || !str_starts_with($this->getCRS()->getSRID(), CoordinateReferenceSystem::CRS_SRID_PREFIX_EPSG)) { |
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throw new UnknownConversionException('Automatic conversions are only supported for EPSG CRSs'); |
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} |
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if ($this->getCRS()->getBoundingArea()->getRegion() !== $to->getBoundingArea()->getRegion() && $this->getCRS()->getBoundingArea()->getRegion() !== RegionMap::REGION_GLOBAL && $to->getBoundingArea()->getRegion() !== RegionMap::REGION_GLOBAL) { |
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throw new UnknownConversionException('Automatic conversions are not supported between different global regions'); |
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} |
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$point = $this; |
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$path = $this->findOperationPath($this->getCRS(), $to, $ignoreBoundaryRestrictions); |
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foreach ($path as $step) { |
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$target = CoordinateReferenceSystem::fromSRID($step['in_reverse'] ? $step['source_crs'] : $step['target_crs']); |
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$point = $point->performOperation($step['operation'], $target, $step['in_reverse']); |
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} |
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return $point; |
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} |
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255 |
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protected function findOperationPath(Compound|Geocentric|Geographic2D|Geographic3D|Projected|Vertical $source, Compound|Geocentric|Geographic2D|Geographic3D|Projected|Vertical $target, bool $ignoreBoundaryRestrictions): array |
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{ |
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$boundaryCheckPoint = $ignoreBoundaryRestrictions ? null : $this->getPointForBoundaryCheck(); |
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// Iteratively calculate permutations of intermediate CRSs |
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$candidatePaths = $this->buildTransformationPathsToCRS($source, $target); |
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usort($candidatePaths, static fn (array $a, array $b) => $a['accuracy'] <=> $b['accuracy'] ?: count($a['path']) <=> count($b['path'])); |
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foreach ($candidatePaths as $candidatePath) { |
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if ($this->validatePath($candidatePath['path'], $boundaryCheckPoint)) { |
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return $candidatePath['path']; |
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} |
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} |
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throw new UnknownConversionException('Unable to perform conversion, please file a bug if you think this is incorrect'); |
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} |
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protected function validatePath(array $candidatePath, ?GeographicValue $boundaryCheckPoint): bool |
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{ |
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foreach ($candidatePath as $pathStep) { |
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$operation = CoordinateOperations::getOperationData($pathStep['operation']); |
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if ($boundaryCheckPoint) { |
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//filter out operations that only operate outside this point |
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$polygon = BoundingArea::createFromExtentCodes($operation['extent_code']); |
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if (!$polygon->containsPoint($boundaryCheckPoint)) { |
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return false; |
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} |
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} |
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$operation = CoordinateOperations::getOperationData($pathStep['operation']); |
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//filter out operations that require an epoch if we don't have one |
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if (isset(self::$methodsThatRequireCoordinateEpoch[$operation['method']]) && !$this->getCoordinateEpoch()) { |
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return false; |
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} |
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$params = CoordinateOperations::getParamData($pathStep['operation']); |
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//filter out operations that require a specific epoch |
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if (isset(self::$methodsThatRequireASpecificEpoch[$operation['method']]) && $this->getCoordinateEpoch()) { |
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$pointEpoch = Year::fromDateTime($this->getCoordinateEpoch()); |
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if (!(abs($pointEpoch->getValue() - $params['transformationReferenceEpoch']['value']) <= 0.001)) { |
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return false; |
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} |
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} |
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//filter out operations that require a grid file that we don't have, or where boundaries are not being |
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//checked (a formula-based conversion will always return *a* result, outside a grid boundary does not... |
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foreach ($params as $param) { |
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if (isset($param['fileProvider']) && (!$boundaryCheckPoint || !class_exists($param['fileProvider']))) { |
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return false; |
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} |
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} |
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} |
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return true; |
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} |
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/** |
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* Build the set of possible paths that lead from the current CRS to the target CRS. |
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*/ |
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protected function buildTransformationPathsToCRS(Compound|Geocentric|Geographic2D|Geographic3D|Projected|Vertical $source, Compound|Geocentric|Geographic2D|Geographic3D|Projected|Vertical $target): array |
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{ |
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$iterations = 0; |
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$sourceSRID = $source->getSRID(); |
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$targetSRID = $target->getSRID(); |
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$previousSimplePaths = [[$sourceSRID]]; |
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$cacheKey = $sourceSRID . '|' . $targetSRID; |
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if (!isset(self::$completePathCache[$cacheKey])) { |
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$transformationsByCRS = self::buildSupportedTransformationsByCRS($source, $target); |
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$transformationsByCRSPair = self::buildSupportedTransformationsByCRSPair($source, $target); |
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self::$completePathCache[$cacheKey] = []; |
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while ($iterations <= $this->maxChainDepth) { |
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$completePaths = []; |
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$simplePaths = []; |
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foreach ($previousSimplePaths as $simplePath) { |
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$current = $simplePath[$iterations]; |
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if ($current === $targetSRID) { |
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$completePaths[] = $simplePath; |
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} elseif (isset($transformationsByCRS[$current])) { |
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foreach ($transformationsByCRS[$current] as $next) { |
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if (!in_array($next, $simplePath, true)) { |
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$simplePaths[] = [...$simplePath, $next]; |
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} |
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} |
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} |
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} |
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// Then expand each CRS->CRS permutation with the various ways of achieving that (can be lots :/) |
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$fullPaths = $this->expandSimplePaths($transformationsByCRSPair, $completePaths, $sourceSRID, $targetSRID); |
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$paths = []; |
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foreach ($fullPaths as $fullPath) { |
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$paths[] = ['path' => $fullPath, 'accuracy' => array_sum(array_column($fullPath, 'accuracy'))]; |
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} |
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$previousSimplePaths = $simplePaths; |
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self::$completePathCache[$cacheKey] = [...self::$completePathCache[$cacheKey], ...$paths]; |
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++$iterations; |
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} |
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} |
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return self::$completePathCache[$cacheKey]; |
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} |
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201 |
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protected function expandSimplePaths(array $transformationsByCRSPair, array $simplePaths, string $fromSRID, string $toSRID): array |
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{ |
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$fullPaths = []; |
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201 |
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foreach ($simplePaths as $simplePath) { |
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$transformationsToMakePath = [[]]; |
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$from = array_shift($simplePath); |
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assert($from === $fromSRID); |
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do { |
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201 |
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$to = array_shift($simplePath); |
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201 |
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$wipTransformationsInPath = []; |
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201 |
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foreach ($transformationsByCRSPair[$from . '|' . $to] ?? [] as $transformation) { |
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201 |
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foreach ($transformationsToMakePath as $transformationToMakePath) { |
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$wipTransformationsInPath[] = [...$transformationToMakePath, $transformation]; |
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} |
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} |
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$transformationsToMakePath = $wipTransformationsInPath; |
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201 |
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$from = $to; |
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201 |
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} while (count($simplePath) > 0); |
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201 |
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assert($to === $toSRID); |
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201 |
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foreach ($transformationsToMakePath as $transformationToMakePath) { |
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$fullPaths[] = $transformationToMakePath; |
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} |
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} |
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return $fullPaths; |
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} |
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/** |
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* Boundary polygons are defined as WGS84, so theoretically all that needs to happen is |
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* to conversion to WGS84 by calling ->convert(). However, that leads quickly to either circularity |
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* when a conversion is possible, or an exception because not every CRS has a WGS84 transformation |
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* available to it even when chaining. |
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*/ |
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protected function getPointForBoundaryCheck(): ?GeographicValue |
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{ |
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237 |
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if ($this instanceof CompoundPoint) { |
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$point = $this->getHorizontalPoint(); |
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} else { |
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$point = $this; |
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} |
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try { |
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// try converting to WGS84 if possible... |
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return $point->convert(Geographic2D::fromSRID(Geographic2D::EPSG_WGS_84), true)->asGeographicValue(); |
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9 |
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} catch (UnknownConversionException) { |
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/* |
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* If Projected then either the point is inside the boundary by definition |
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* or the user is deliberately exceeding the safe zone so safe to make a no-op either way. |
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*/ |
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9 |
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if ($point instanceof ProjectedPoint) { |
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return null; |
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} |
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253
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/* |
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254
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* Otherwise, compensate for non-Greenwich Prime Meridian, but otherwise assume that coordinates |
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255
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* are interchangeable between the actual CRS and WGS84. Boundaries are only defined to the nearest |
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* ≈1km so the error bound should be acceptable within the area of interest |
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*/ |
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9 |
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if ($point instanceof GeographicPoint) { |
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return new GeographicValue($point->getLatitude(), $point->getLongitude()->subtract($point->getCRS()->getDatum()->getPrimeMeridian()->getGreenwichLongitude()), null, $point->getCRS()->getDatum()); |
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} |
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262
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9 |
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if ($point instanceof GeocentricPoint) { |
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263
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9 |
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$asGeographic = $point->asGeographicValue(); |
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9 |
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return new GeographicValue($asGeographic->getLatitude(), $asGeographic->getLongitude()->subtract($asGeographic->getDatum()->getPrimeMeridian()->getGreenwichLongitude()), null, $asGeographic->getDatum()); |
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} |
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} |
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268
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} |
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270
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201 |
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protected static function buildSupportedTransformationsByCRS(Compound|Geocentric|Geographic2D|Geographic3D|Projected|Vertical $source, Compound|Geocentric|Geographic2D|Geographic3D|Projected|Vertical $target): array |
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271
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{ |
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272
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201 |
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$regions = array_unique([$source->getBoundingArea()->getRegion(), $target->getBoundingArea()->getRegion(), RegionMap::REGION_GLOBAL]); |
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201 |
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$relevantRegionData = []; |
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274
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201 |
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foreach ($regions as $region) { |
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275
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201 |
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$regionData = match ($region) { |
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201 |
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RegionMap::REGION_GLOBAL => CRSTransformationsGlobal::getSupportedTransformations(), |
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277
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147 |
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RegionMap::REGION_AFRICA => CRSTransformationsAfrica::getSupportedTransformations(), |
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278
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147 |
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RegionMap::REGION_ANTARCTIC => CRSTransformationsAntarctic::getSupportedTransformations(), |
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279
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147 |
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RegionMap::REGION_ARCTIC => CRSTransformationsArctic::getSupportedTransformations(), |
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280
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147 |
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RegionMap::REGION_ASIA => CRSTransformationsAsia::getSupportedTransformations(), |
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281
|
120 |
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RegionMap::REGION_EUROPE => CRSTransformationsEurope::getSupportedTransformations(), |
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282
|
20 |
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RegionMap::REGION_NORTHAMERICA => CRSTransformationsNorthAmerica::getSupportedTransformations(), |
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283
|
10 |
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RegionMap::REGION_OCEANIA => CRSTransformationsOceania::getSupportedTransformations(), |
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284
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RegionMap::REGION_SOUTHAMERICA => CRSTransformationsSouthAmerica::getSupportedTransformations(), |
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285
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}; |
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286
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201 |
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$relevantRegionData = [...$relevantRegionData, ...$regionData]; |
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} |
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288
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289
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201 |
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$transformationsByCRS = []; |
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290
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201 |
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foreach ($relevantRegionData as $transformation) { |
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291
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201 |
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if (!isset($transformationsByCRS[$transformation['source_crs']][$transformation['target_crs']])) { |
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292
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201 |
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$transformationsByCRS[$transformation['source_crs']][$transformation['target_crs']] = $transformation['target_crs']; |
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293
|
|
|
} |
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294
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201 |
|
if ($transformation['reversible'] && !isset($transformationsByCRS[$transformation['target_crs']][$transformation['source_crs']])) { |
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295
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201 |
|
$transformationsByCRS[$transformation['target_crs']][$transformation['source_crs']] = $transformation['source_crs']; |
|
296
|
|
|
} |
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297
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|
|
} |
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298
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|
|
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|
299
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201 |
|
return $transformationsByCRS; |
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300
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|
|
} |
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301
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|
|
|
|
302
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201 |
|
protected static function buildSupportedTransformationsByCRSPair(Compound|Geocentric|Geographic2D|Geographic3D|Projected|Vertical $source, Compound|Geocentric|Geographic2D|Geographic3D|Projected|Vertical $target): array |
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303
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|
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{ |
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304
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201 |
|
$regions = array_unique([$source->getBoundingArea()->getRegion(), $target->getBoundingArea()->getRegion(), RegionMap::REGION_GLOBAL]); |
|
305
|
201 |
|
$relevantRegionData = []; |
|
306
|
201 |
|
foreach ($regions as $region) { |
|
307
|
201 |
|
$regionData = match ($region) { |
|
308
|
201 |
|
RegionMap::REGION_GLOBAL => CRSTransformationsGlobal::getSupportedTransformations(), |
|
309
|
147 |
|
RegionMap::REGION_AFRICA => CRSTransformationsAfrica::getSupportedTransformations(), |
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310
|
147 |
|
RegionMap::REGION_ANTARCTIC => CRSTransformationsAntarctic::getSupportedTransformations(), |
|
311
|
147 |
|
RegionMap::REGION_ARCTIC => CRSTransformationsArctic::getSupportedTransformations(), |
|
312
|
147 |
|
RegionMap::REGION_ASIA => CRSTransformationsAsia::getSupportedTransformations(), |
|
313
|
120 |
|
RegionMap::REGION_EUROPE => CRSTransformationsEurope::getSupportedTransformations(), |
|
314
|
20 |
|
RegionMap::REGION_NORTHAMERICA => CRSTransformationsNorthAmerica::getSupportedTransformations(), |
|
315
|
10 |
|
RegionMap::REGION_OCEANIA => CRSTransformationsOceania::getSupportedTransformations(), |
|
316
|
|
|
RegionMap::REGION_SOUTHAMERICA => CRSTransformationsSouthAmerica::getSupportedTransformations(), |
|
317
|
|
|
}; |
|
318
|
201 |
|
$relevantRegionData = [...$relevantRegionData, ...$regionData]; |
|
319
|
|
|
} |
|
320
|
|
|
|
|
321
|
201 |
|
$transformationsByCRSPair = []; |
|
322
|
201 |
|
foreach ($relevantRegionData as $key => $transformation) { |
|
323
|
201 |
|
$transformationsByCRSPair[$transformation['source_crs'] . '|' . $transformation['target_crs']][$key] = $transformation; |
|
324
|
201 |
|
$transformationsByCRSPair[$transformation['source_crs'] . '|' . $transformation['target_crs']][$key]['in_reverse'] = false; |
|
325
|
201 |
|
if ($transformation['reversible']) { |
|
326
|
201 |
|
$transformationsByCRSPair[$transformation['target_crs'] . '|' . $transformation['source_crs']][$key] = $transformation; |
|
327
|
201 |
|
$transformationsByCRSPair[$transformation['target_crs'] . '|' . $transformation['source_crs']][$key]['in_reverse'] = true; |
|
328
|
|
|
} |
|
329
|
|
|
} |
|
330
|
|
|
|
|
331
|
201 |
|
return $transformationsByCRSPair; |
|
332
|
|
|
//additional help for ETRS89->WGS84 |
|
333
|
|
|
/*if (in_array($from, [Geocentric::EPSG_WGS_84, Geographic2D::EPSG_WGS_84, Geographic3D::EPSG_WGS_84], true) && in_array($to, [Geocentric::EPSG_ETRS89, Geographic2D::EPSG_ETRS89, Geographic3D::EPSG_ETRS89], true)) { |
|
334
|
|
|
$inserts = self::$OPERATIONS_ETRF2014_TO_WGS84_G2139; |
|
335
|
|
|
} elseif (in_array($to, [Geocentric::EPSG_WGS_84, Geographic2D::EPSG_WGS_84, Geographic3D::EPSG_WGS_84], true) && in_array($from, [Geocentric::EPSG_ETRS89, Geographic2D::EPSG_ETRS89, Geographic3D::EPSG_ETRS89], true)) { |
|
336
|
|
|
$inserts = array_reverse(self::$OPERATIONS_ETRF2014_TO_WGS84_G2139); |
|
337
|
|
|
} |
|
338
|
|
|
if (in_array($from, [Geographic2D::EPSG_WGS_84, Geographic3D::EPSG_WGS_84], true) && in_array($to, [Geographic2D::EPSG_ETRS89, Geographic3D::EPSG_ETRS89], true)) { |
|
339
|
|
|
$inserts = [self::$OPERATION_GEOCENTRIC_TO_GEOGRAPHIC3D, ...$inserts, self::$OPERATION_GEOCENTRIC_TO_GEOGRAPHIC3D]; |
|
340
|
|
|
} elseif (in_array($to, [Geographic2D::EPSG_WGS_84, Geographic3D::EPSG_WGS_84], true) && in_array($from, [Geographic2D::EPSG_ETRS89, Geographic3D::EPSG_ETRS89], true)) { |
|
341
|
|
|
$inserts = [self::$OPERATION_GEOCENTRIC_TO_GEOGRAPHIC3D, ...$inserts, self::$OPERATION_GEOCENTRIC_TO_GEOGRAPHIC3D]; |
|
342
|
|
|
} |
|
343
|
|
|
if (in_array($from, [Geographic2D::EPSG_WGS_84], true) && in_array($to, [Geographic2D::EPSG_ETRS89], true)) { |
|
344
|
|
|
$inserts = [self::$OPERATION_GEOGRAPHIC3D_TO_GEOGRAPHIC2D, ...$inserts, self::$OPERATION_GEOGRAPHIC3D_TO_GEOGRAPHIC2D]; |
|
345
|
|
|
} elseif (in_array($to, [Geographic2D::EPSG_WGS_84], true) && in_array($from, [Geographic2D::EPSG_ETRS89], true)) { |
|
346
|
|
|
$inserts = [self::$OPERATION_GEOGRAPHIC3D_TO_GEOGRAPHIC2D, ...$inserts, self::$OPERATION_GEOGRAPHIC3D_TO_GEOGRAPHIC2D]; |
|
347
|
|
|
}*/ |
|
348
|
|
|
|
|
349
|
|
|
/* |
|
350
|
|
|
ITRF2000 to NAD83(CORS96) (1) |
|
351
|
|
|
ITRF2000 to NAD83(CSRS)v4 (1) |
|
352
|
|
|
ITRF2000 to NAD83(MARP00) (1) |
|
353
|
|
|
ITRF2000 to NAD83(PACP00) (1) |
|
354
|
|
|
ITRF2005 to NAD83(CSRS)v5 (1) |
|
355
|
|
|
ITRF2008 to NAD83(2011) (1) |
|
356
|
|
|
ITRF2008 to NAD83(CSRS)v6 (1) |
|
357
|
|
|
ITRF2008 to NAD83(MA11) (1) |
|
358
|
|
|
ITRF2008 to NAD83(PA11) (1) |
|
359
|
|
|
ITRF2014 to GDA2020 (1) |
|
360
|
|
|
ITRF2014 to ETRF2014 (1) |
|
361
|
|
|
ITRF2014 to NAD83(2011) (1) |
|
362
|
|
|
ITRF2014 to NAD83(CSRS)v7 (1) |
|
363
|
|
|
|
|
364
|
|
|
*/ |
|
365
|
|
|
} |
|
366
|
|
|
|
|
367
|
|
|
abstract public function getCRS(): CoordinateReferenceSystem; |
|
368
|
|
|
|
|
369
|
|
|
abstract public function getCoordinateEpoch(): ?DateTimeImmutable; |
|
370
|
|
|
|
|
371
|
|
|
abstract protected function performOperation(string $srid, Compound|Geocentric|Geographic2D|Geographic3D|Projected|Vertical $to, bool $inReverse): Point; |
|
372
|
|
|
} |
|
373
|
|
|
|
dvdoug /
PHPCoord
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The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"], you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths