# @turf/line-slice

# lineSlice

Takes a [line](http://geojson.org/geojson-spec.html#linestring), a start [Point](http://geojson.org/geojson-spec.html#point), and a stop point
and returns a subsection of the line in-between those points.
The start & stop points don't need to fall exactly on the line.

This can be useful for extracting only the part of a route between waypoints.

**Parameters**

-   `startPt` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)<[Point](http://geojson.org/geojson-spec.html#point)>** starting point
-   `stopPt` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)<[Point](http://geojson.org/geojson-spec.html#point)>** stopping point
-   `line` **([Feature](http://geojson.org/geojson-spec.html#feature-objects)<[LineString](http://geojson.org/geojson-spec.html#linestring)> | [LineString](http://geojson.org/geojson-spec.html#linestring))** line to slice

**Examples**

```javascript
var line = turf.lineString([
    [-77.031669, 38.878605],
    [-77.029609, 38.881946],
    [-77.020339, 38.884084],
    [-77.025661, 38.885821],
    [-77.021884, 38.889563],
    [-77.019824, 38.892368]
]);
var start = turf.point([-77.029609, 38.881946]);
var stop = turf.point([-77.021884, 38.889563]);

var sliced = turf.lineSlice(start, stop, line);

//addToMap
var addToMap = [start, stop, line]
```

Returns **[Feature](http://geojson.org/geojson-spec.html#feature-objects)<[LineString](http://geojson.org/geojson-spec.html#linestring)>** sliced line

<!-- This file is automatically generated. Please don't edit it directly:
if you find an error, edit the source file (likely index.js), and re-run
./scripts/generate-readmes in the turf project. -->

---

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/line-slice
```

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

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