# @turf/line-arc ## lineArc Creates a circular arc, of a circle of the given radius and center point, between bearing1 and bearing2; 0 bearing is North of center point, positive clockwise. ### Parameters * `center` **[Coord][1]** center point * `radius` **[number][2]** radius of the circle * `bearing1` **[number][2]** angle, in decimal degrees, of the first radius of the arc * `bearing2` **[number][2]** angle, in decimal degrees, of the second radius of the arc * `options` **[Object][3]** Optional parameters (optional, default `{}`) * `options.steps` **[number][2]** number of steps (straight segments) that will constitute the arc (optional, default `64`) * `options.units` **[string][4]** miles, kilometers, degrees, or radians (optional, default `'kilometers'`) ### Examples ```javascript var center = turf.point([-75, 40]); var radius = 5; var bearing1 = 25; var bearing2 = 47; var arc = turf.lineArc(center, radius, bearing1, bearing2); //addToMap var addToMap = [center, arc] ``` Returns **[Feature][5]<[LineString][6]>** line arc [1]: https://tools.ietf.org/html/rfc7946#section-3.1.1 [2]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number [3]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object [4]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String [5]: https://tools.ietf.org/html/rfc7946#section-3.2 [6]: https://tools.ietf.org/html/rfc7946#section-3.1.4 --- 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/line-arc ``` Or install the all-encompassing @turf/turf module that includes all modules as functions: ```sh $ npm install @turf/turf ```