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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 const PHP_MAJOR_VERSION; |
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use PHPCoord\CoordinateReferenceSystem\Projected; |
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use PHPCoord\CoordinateSystem\Cartesian; |
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use PHPCoord\Datum\Datum; |
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use PHPCoord\ProjectedPoint; |
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use PHPCoord\UnitOfMeasure\Length\Metre; |
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use SplFileObject; |
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class OSTNOSGM15Grid extends SplFileObject |
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{ |
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private const GRID_SIZE = 1000; |
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private const ITERATION_CONVERGENCE = 0.0001; |
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public function applyForwardHorizontalAdjustment(ProjectedPoint $point): ProjectedPoint |
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{ |
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$adjustment = $this->getAdjustment($point->getEasting()->asMetres(), $point->getNorthing()->asMetres()); |
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$easting = $point->getEasting()->add(new Metre($adjustment[0])); |
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$northing = $point->getNorthing()->add(new Metre($adjustment[1])); |
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return ProjectedPoint::createFromEastingNorthing($easting, $northing, Projected::fromSRID(Projected::EPSG_OSGB36_BRITISH_NATIONAL_GRID), $point->getCoordinateEpoch()); |
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} |
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public function applyReverseHorizontalAdjustment(ProjectedPoint $point): ProjectedPoint |
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{ |
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$osgb36NationalGrid = Projected::fromSRID(Projected::EPSG_OSGB36_BRITISH_NATIONAL_GRID); |
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$etrs89NationalGrid = new Projected( |
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'ETRS89 / National Grid', |
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Cartesian::fromSRID(Cartesian::EPSG_2D_AXES_EASTING_NORTHING_E_N_ORIENTATIONS_EAST_NORTH_UOM_M), |
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Datum::fromSRID(Datum::EPSG_EUROPEAN_TERRESTRIAL_REFERENCE_SYSTEM_1989_ENSEMBLE), |
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$osgb36NationalGrid->getBoundingArea() |
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); |
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$adjustment = [0, 0]; |
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$easting = $point->getEasting(); |
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$northing = $point->getNorthing(); |
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do { |
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$prevAdjustment = $adjustment; |
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$adjustment = $this->getAdjustment($easting->asMetres(), $northing->asMetres()); |
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$easting = $point->getEasting()->subtract(new Metre($adjustment[0])); |
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$northing = $point->getNorthing()->subtract(new Metre($adjustment[1])); |
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} while (abs($adjustment[0] - $prevAdjustment[0]) > self::ITERATION_CONVERGENCE && abs($adjustment[1] - $prevAdjustment[1]) > self::ITERATION_CONVERGENCE); |
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return ProjectedPoint::createFromEastingNorthing($easting, $northing, $etrs89NationalGrid, $point->getCoordinateEpoch()); |
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} |
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public function getVerticalAdjustment(ProjectedPoint $point): Metre |
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{ |
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$adjustment = $this->getAdjustment($point->getEasting()->asMetres(), $point->getNorthing()->asMetres()); |
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return new Metre($adjustment[2]); |
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} |
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private function getAdjustment(Metre $easting, Metre $northing): array |
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{ |
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$eastIndex = (int) ($easting->getValue() / self::GRID_SIZE); |
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$northIndex = (int) ($northing->getValue() / self::GRID_SIZE); |
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$corner0 = $this->getRecord($eastIndex, $northIndex); |
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$corner1 = $this->getRecord($eastIndex + 1, $northIndex); |
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$corner2 = $this->getRecord($eastIndex + 1, $northIndex + 1); |
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$corner3 = $this->getRecord($eastIndex, $northIndex + 1); |
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$dx = $easting->getValue() - $corner0[1]; |
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$dy = $northing->getValue() - $corner0[2]; |
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$t = $dx / self::GRID_SIZE; |
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$u = $dy / self::GRID_SIZE; |
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$se = (1 - $t) * (1 - $u) * $corner0[3] + ($t) * (1 - $u) * $corner1[3] + ($t) * ($u) * $corner2[3] + (1 - $t) * ($u) * $corner3[3]; |
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$sn = (1 - $t) * (1 - $u) * $corner0[4] + ($t) * (1 - $u) * $corner1[4] + ($t) * ($u) * $corner2[4] + (1 - $t) * ($u) * $corner3[4]; |
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$sh = (1 - $t) * (1 - $u) * $corner0[5] + ($t) * (1 - $u) * $corner1[5] + ($t) * ($u) * $corner2[5] + (1 - $t) * ($u) * $corner3[5]; |
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return [$se, $sn, $sh]; |
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} |
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private function getRecord(int $eastIndex, int $northIndex): array |
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{ |
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$record = $northIndex * 701 + $eastIndex + 1; |
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// https://bugs.php.net/bug.php?id=62004 |
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if (PHP_MAJOR_VERSION < 8) { |
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--$record; |
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} |
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$this->seek($record); |
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return $this->fgetcsv(); |
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} |
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} |
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dvdoug /
PHPCoord
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