## Calculate an isochrone from a point

`$client->routing->isochrone(float lat, float lng, float time, ?string mode): GeoJsonFeature`

**get** `/api/v1/isochrone`

Calculate an isochrone from a point

### Parameters

- `lat: float`

  Latitude

- `lng: float`

  Longitude

- `time: float`

  Travel time in seconds (1-7200)

- `mode?:optional string`

  Travel mode (auto, foot, bicycle)

### Returns

- `GeoJsonFeature`

  - `GeoJsonGeometry geometry`

  - `array<string,mixed> properties`

  - `Type type`

  - `?string id`

    Feature identifier (type/osm_id)

  - `?int osmID`

    OpenStreetMap ID

### Example

```php
<?php

require_once dirname(__DIR__) . '/vendor/autoload.php';

$client = new Client(apiKey: 'My API Key', environment: 'local');

$geoJsonFeature = $client->routing->isochrone(
  lat: 0, lng: 0, time: 0, mode: 'mode'
);

var_dump($geoJsonFeature);
```