check if a point is inside a polygon

[amkfat]

I am trying to check if a Point is inside a Polygon but I'm always getting false . here is my code

Port.php

`
class Port extends Model
{
use HasPostgisColumns;

protected $fillable = [
    'name',
    'country',
    'location',
];

protected array $postgisColumns = [
    'location' => [
        'type' => 'geometry',
        'srid' => 4326,
    ],
];

`

the controller:

` $point1 = Point::makeGeodetic(100, 0);
$point2 = Point::makeGeodetic(101, 0);
$point3 = Point::makeGeodetic(101, 1);
$point4 = Point::makeGeodetic(100, 1);

 $lineString = LineString::make([$point1, $point2, $point3, $point4, $point1]);

 $polygon = Polygon::make([$lineString]);`
 dump($ports);

 $ports = Port::select('location')
        ->stSelect(ST::contains($polygon2, 'location'))
        ->get();

  dd($ports);

`

the output:

i checked on 'geojson .io', the point is inside the polygon:

[saibotk]

It seems like your Port location point's coordinates have the x and y mixed up.

[amkfat]

thanks.

[ahawlitschek]

Short further explanation:

If you look into the following readme section you can see the differences when creating points.

There is the normal Point::make(...) function, which accepts x,y,z and then the Point::makeGeodetic(...) which accepts latitude, longitude.

We added the makeGeodetic function, because a lot of people will use WGS84 as Projection. And we wanted to input to be latitude, longitude instead of longitude, latitude.

Remember:
Latitude -> y
Longitude -> x

[amkfat]

it works now.
thanks.