Calculates a point along a line at a specific distance
npm install @turf/alongTakes a [LineString][1] and returns a [Point][2] at a specified distance along the line.
* line ([Feature][3]<[LineString][1]> | [LineString][1]) input line
* distance [number][4] distance along the line
* options [Object][5]? Optional parameters (optional, default {})
* options.units Units Supports all valid Turf [Units][6]. (optional, default "kilometers")
``javascript
var line = turf.lineString([[-83, 30], [-84, 36], [-78, 41]]);
var options = {units: 'miles'};
var along = turf.along(line, 200, options);
//addToMap
var addToMap = [along, line]
`
Returns [Feature][3]<[Point][2]> Point distance units along the line
[1]: https://tools.ietf.org/html/rfc7946#section-3.1.4
[2]: https://tools.ietf.org/html/rfc7946#section-3.1.2
[3]: https://tools.ietf.org/html/rfc7946#section-3.2
[4]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number
[5]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object
[6]: https://turfjs.org/docs/api/types/Units
---
This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.
Install this single module individually:
`sh`
$ npm install @turf/along
Or install the all-encompassing @turf/turf module that includes all modules as functions:
`sh``
$ npm install @turf/turf