spinen/laravel-geometry

SPINEN's Laravel Geometry

Wrapper over the geoPHP Class to make it integrate with Laravel better.

Build Status

Branch	Status	Coverage	Code Quality
Develop
Master

Prerequisite

NOTES

1) If you need to use < php7.2, please stay with version 1.x

2) Aside from Laravel >= 5.5, the package below is required

• phayes/geophp

Install

Install Geometry:

    $ composer require spinen/laravel-geometry

The package uses the auto registration feature.

Using the package

The Geometry Class exposes parseType methods where "Type" is StudlyCase of the geometry type that geoPHP supports. Here is a full list...

• parseEwkb($geometry)
• parseEwkt($geometry)
• parseGeoHash($geometry)
• parseGeoJson($geometry)
• parseGeoRss($geometry)
• parseGoogleGeocode($geometry)
• parseGpx($geometry)
• parseJson($geometry)
• parseKml($geometry)
• parseWkb($geometry)
• parseWkt($geometry)

The geometries are wrapped in a Spinen\Geometry\Geometries namespace with a little sugar to be able to do

• toEwkb()
• toEwkt()
• toGeoHash()
• toGeoJson()
• toGeoRss()
• toGoogleGeocode()
• toGpx()
• toJson()
• toKml()
• toWkb()
• toWkt()

In addition to the above export methods, we have added a toArray that gives an array from the toJson method. For convenience, we have exposed all of the properties of the geometry through a getter, so you have direct access to the property without having ask for the keys in the array.

Area of the polygon

We are estimating the area in meters squared & acres. We expect the estimation to be within 1%, so it is not very accurate. We essentially refactored a js method that Mapbox has in their geojson-area package . You get the area by calling the getAcres or getSquareMeters. There is a shortcut to them as properties, so you can read the "acres" or "square_meters" property.

Example

// Area of Polygon
$points = [[1,1], [2,2], [3,2], [3,4]];

$geoJson = '{"type":"Polygon", "coordinates":[' . json_encode($points) . ']}';

$geo = new geoPHP();
$mapper = new Spinen\Geometry\Support\TypeMapper();
$geometry = new Spinen\Geometry\Geometry($geo, $mapper);

$collection = $geometry->parseGeoJson($geoJson); // see above for more parse options

$squareMeters = $collection->getSquareMeters();
$acres = $collection->getAcres();