# @turf/sector ## sector Creates a circular sector of a circle of given radius and center [Point][1], between (clockwise) bearing1 and bearing2; 0 bearing is North of center point, positive clockwise. ### Parameters * `center` **[Coord][2]** center point * `radius` **[number][3]** radius of the circle * `bearing1` **[number][3]** angle, in decimal degrees, of the first radius of the sector * `bearing2` **[number][3]** angle, in decimal degrees, of the second radius of the sector * `options` **[Object][4]** Optional parameters (optional, default `{}`) * `options.units` **[string][5]** miles, kilometers, degrees, or radians (optional, default `'kilometers'`) * `options.steps` **[number][3]** number of steps (optional, default `64`) * `options.properties` **Properties** Translate properties to Feature Polygon (optional, default `{}`) ### 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][6]<[Polygon][7]>** sector polygon [1]: https://tools.ietf.org/html/rfc7946#section-3.1.2 [2]: https://tools.ietf.org/html/rfc7946#section-3.1.1 [3]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number [4]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object [5]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String [6]: https://tools.ietf.org/html/rfc7946#section-3.2 [7]: https://tools.ietf.org/html/rfc7946#section-3.1.6 --- This module is part of the [Turfjs project](https://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 single module individually: ```sh $ npm install @turf/sector ``` Or install the all-encompassing @turf/turf module that includes all modules as functions: ```sh $ npm install @turf/turf ```