Distance Between a Point and a Line
It’s possible to calculate the shortest distance between a point and a
Polygon are also built upon the
it’s also possible to calculate distances from a point the polyline/polygon
by iterating over their segments.
The following image explains how the distance is calcualated: P and R are located in such a way that the nearest distance to the line is the distance between P, R and the line end points. Point Q is nearer to the actual line than to any of the end points, so the actual distance is the perpendicular distance between Q and the line.
use Location\Coordinate; use Location\Distance\Vincenty; use Location\Line; use Location\Utility\PointToLineDistance; $point = new Coordinate(52.5, 13.5); $line = new Line( new Coordinate(52.5, 13.1), new Coordinate(52.5, 13.1) ); $pointToLineDistanceCalculator = new PointToLineDistance(new Vincenty()); printf( 'Distance from point to line: %.1f meters%s', $pointToLineDistanceCalculator->getDistance($point, $line), PHP_EOL );
The code above will produce the output below:
Distance from point to line: 27164.1 meters