PHP code example of nashgao / hyperf-mysql-spatial

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

nashgao / hyperf-mysql-spatial example snippets

namespace App;

use Nashgao\HyperfMySQLSpatial\Eloquent\SpatialTrait;
use Hyperf\Database\Model\Model;
/**
 * @property \Nashgao\HyperfMySQLSpatial\Types\Point   $location
 * @property \Nashgao\HyperfMySQLSpatial\Types\Polygon $area
 */
class Place extends Model
{
    use SpatialTrait;

    protected $fillable = [
        'name'
    ];

    protected $spatialFields = [
        'location',
        'area'
    ];
}

use Nashgao\HyperfMySQLSpatial\Types\Point;
use Nashgao\HyperfMySQLSpatial\Types\Polygon;
use Nashgao\HyperfMySQLSpatial\Types\LineString;

$place1 = new Place();
$place1->name = 'Empire State Building';

// saving a point
$place1->location = new Point(40.7484404, -73.9878441);	// (lat, lng)
$place1->save();

// saving a polygon
$place1->area = new Polygon([new LineString([
    new Point(40.74894149554006, -73.98615270853043),
    new Point(40.74848633046773, -73.98648262023926),
    new Point(40.747925497790725, -73.9851602911949),
    new Point(40.74837050671544, -73.98482501506805),
    new Point(40.74894149554006, -73.98615270853043)
])]);
$place1->save();

use Nashgao\HyperfMySQLSpatial\Types\Point;
use Nashgao\HyperfMySQLSpatial\Types\Polygon;
use Nashgao\HyperfMySQLSpatial\Types\LineString;

$place1 = new Place();
$place1->name = 'Empire State Building';

// saving a point with SRID 4326 (WGS84 spheroid)
$place1->location = new Point(40.7484404, -73.9878441, 4326);	// (lat, lng, srid)
$place1->save();

// saving a polygon with SRID 4326 (WGS84 spheroid)
$place1->area = new Polygon([new LineString([
    new Point(40.74894149554006, -73.98615270853043),
    new Point(40.74848633046773, -73.98648262023926),
    new Point(40.747925497790725, -73.9851602911949),
    new Point(40.74837050671544, -73.98482501506805),
    new Point(40.74894149554006, -73.98615270853043)
])], 4326);
$place1->save();

$place2 = Place::first();
$lat = $place2->location->getLat();	// 40.7484404
$lng = $place2->location->getLng();	// -73.9878441

$polygon = $multipolygon[10];	// ArrayAccess

// IteratorAggregate
for($polygon as $i => $linestring) {
  echo (string) $linestring;
}

// fromWKT($wkt, $srid = 0)
$point = Point::fromWKT('POINT(2 1)');
$point->toWKT();	// POINT(2 1)

$polygon = Polygon::fromWKT('POLYGON((0 0,4 0,4 4,0 4,0 0),(1 1, 2 1, 2 2, 1 2,1 1))');
$polygon->toWKT();	// POLYGON((0 0,4 0,4 4,0 4,0 0),(1 1, 2 1, 2 2, 1 2,1 1))

// fromString($wkt, $srid = 0)
$point = new Point(1, 2);	// lat, lng
(string)$point			// lng, lat: 2 1

$polygon = Polygon::fromString('(0 0,4 0,4 4,0 4,0 0),(1 1, 2 1, 2 2, 1 2,1 1)');
(string)$polygon;	// (0 0,4 0,4 4,0 4,0 0),(1 1, 2 1, 2 2, 1 2,1 1)

$point = new Point(40.7484404, -73.9878441);

json_encode($point); // or $point->toJson();

// {
//   "type": "Feature",
//   "properties": {},
//   "geometry": {
//     "type": "Point",
//     "coordinates": [
//       -73.9878441,
//       40.7484404
//     ]
//   }
// }

$location = Geometry::fromJson('{"type":"Point","coordinates":[3.4,1.2]}');
$location instanceof Point::class;  // true
$location->getLat();  // 1.2
$location->getLng(); // 3.4