# @turf/along

# along

Takes a [line](http://geojson.org/geojson-spec.html#linestring) and returns a [point](http://geojson.org/geojson-spec.html#point) at a specified distance along the line.

**Parameters**

-   `line` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)<[LineString](http://geojson.org/geojson-spec.html#linestring)>** input line
-   `distance` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** distance along the line
-   `units` **\[[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)]** can be degrees, radians, miles, or kilometers (optional, default `kilometers`)

**Examples**

```javascript
var line = turf.lineString([[-83, 30], [-84, 36], [-78, 41]]);

var along = turf.along(line, 200, 'miles');

//addToMap
var addToMap = [along, line]
```

Returns **[Feature](http://geojson.org/geojson-spec.html#feature-objects)<[Point](http://geojson.org/geojson-spec.html#point)>** Point `distance` `units` along the line

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---

This module is part of the [Turfjs project](http://turfjs.org/), an open source
module collection dedicated to geographic algorithms. It is maintained in the
[Turfjs/turf](https://github.com/Turfjs/turf) repository, where you can create
PRs and issues.

### Installation

Install this module individually:

```sh
$ npm install @turf/along
```

Or install the Turf module that includes it as a function:

```sh
$ npm install @turf/turf
```