# @turf/sector

# sector

Creates a circular sector of a circle of given radius and center [Point](http://geojson.org/geojson-spec.html#point),
between (clockwise) bearing1 and bearing2; 0 bearing is North of center point, positive clockwise.

**Parameters**

-   `center` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)<[Point](http://geojson.org/geojson-spec.html#point)>** center point
-   `radius` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** radius of the circle
-   `bearing1` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** angle, in decimal degrees, of the first radius of the sector
-   `bearing2` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** angle, in decimal degrees, of the second radius of the sector
-   `steps` **\[[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)]** number of steps (optional, default `64`)
-   `units` **\[[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)]** miles, kilometers, degrees, or radians (optional, default `kilometers`)

**Examples**

```javascript
var center = turf.point([-75, 40]);
var radius = 5;
var bearing1 = 25;
var bearing2 = 45;

var sector = turf.sector(center, radius, bearing1, bearing2);

//addToMap
var addToMap = [center, sector];
```

Returns **[Feature](http://geojson.org/geojson-spec.html#feature-objects)<[Polygon](http://geojson.org/geojson-spec.html#polygon)>** sector polygon

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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/sector
```

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

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