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<?php |
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/** |
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* Class Feature |
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* |
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* @created 25.06.2018 |
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* @author smiley <[email protected]> |
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* @copyright 2018 smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\GeoJSON; |
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use function in_array; |
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use function is_int; |
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use function is_string; |
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/** |
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* @see https://www.rfc-editor.org/rfc/rfc7946#section-3.2 |
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*/ |
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class Feature extends GeoJSONAbstract{ |
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public const types = [ |
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'Point', |
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'MultiPoint', |
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'LineString', |
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'MultiLineString', |
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'Polygon', |
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'MultiPolygon', |
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'GeometryCollection', |
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]; |
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protected array $coords; |
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protected string $type; |
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protected array $properties; |
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/** @var int|string */ |
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protected $id; |
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/** |
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* Feature constructor. |
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* |
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* @param array|null $coords |
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* @param string|null $type |
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* @param int|string|null $id |
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* |
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* @throws \chillerlan\GeoJSON\GeoJSONException |
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*/ |
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public function __construct(array $coords = null, string $type = null, $id = null){ |
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if($coords !== null){ |
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if($type === null){ |
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throw new GeoJSONException('got coords but no feature type'); |
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} |
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$this->setGeometry($coords, $type); |
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} |
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if($id !== null){ |
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$this->setID($id); |
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} |
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} |
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/** |
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* @throws \chillerlan\GeoJSON\GeoJSONException |
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*/ |
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public function setGeometry(array $coords, string $type):Feature{ |
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if(empty($coords)){ |
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throw new GeoJSONException('invalid coords array'); |
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} |
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if(!in_array($type, $this::types, true)){ |
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throw new GeoJSONException('invalid geometry type'); |
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} |
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$this->coords = $coords; |
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$this->type = $type; |
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return $this; |
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} |
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/** |
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* |
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*/ |
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public function setProperties(array $properties):Feature{ |
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$this->properties = $properties; |
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return $this; |
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} |
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/** |
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* @param int|string $id |
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* |
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* @throws \chillerlan\GeoJSON\GeoJSONException |
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*/ |
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public function setID($id):Feature{ |
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if(!is_string($id) && !is_int($id)){ |
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throw new GeoJSONException('invalid id'); |
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} |
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$this->id = $id; |
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return $this; |
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} |
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/** |
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* @throws \chillerlan\GeoJSON\GeoJSONException |
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*/ |
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public function toArray():array{ |
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if(empty($this->coords) || empty($this->type)){ |
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throw new GeoJSONException('invalid feature'); |
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} |
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$arr = [ |
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'type' => 'Feature', |
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'geometry' => [ |
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'type' => $this->type, |
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'coordinates' => $this->coords, |
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] |
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]; |
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if(!empty($this->bbox)){ |
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$arr['bbox'] = $this->bbox; |
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} |
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if(!empty($this->properties)){ |
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$arr['properties'] = $this->properties; |
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} |
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if(!empty($this->id)){ |
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$arr['properties']['id'] = $this->id; // leaflet |
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# $arr['id'] = $this->id; // GMaps |
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} |
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return $arr; |
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} |
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} |
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chillerlan /
php-geojson-helpers
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