collection.php

См. документацию.

<?php
 
namespace Bitrix\Location\Geometry\Type;
 
use Bitrix\Main\SystemException;

abstract class Collection extends BaseGeometry
{
    protected $components = [];

    public function __construct(array $components = [])
    {
        foreach ($components as $component)
        {
            if ($component instanceof BaseGeometry)
            {
                $this->components[] = $component;
            }
            else
            {
                throw new SystemException('Cannot create a collection with non-geometries');
            }
        }
    }

    public function getComponents(): array
    {
        return $this->components;
    }

    public function getComponentsCount(): int
    {
        return count($this->components);
    }

    public function asArray(): array
    {
        $result = [];
 
        foreach ($this->components as $component)
        {
            $result[] = $component->asArray();
        }
 
        return $result;
    }
}