67 lines
2.0 KiB
Markdown
67 lines
2.0 KiB
Markdown
# @turf/rhumb-bearing
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<!-- Generated by documentation.js. Update this documentation by updating the source code. -->
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## rhumbBearing
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Takes two [points][1] and finds the bearing angle between them along a Rhumb line
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i.e. the angle measured in degrees start the north line (0 degrees)
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**Parameters**
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- `start` **[Coord][2]** starting Point
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- `end` **[Coord][2]** ending Point
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- `options` **[Object][3]?** Optional parameters
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- `options.final` **[boolean][4]** calculates the final bearing if true (optional, default `false`)
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**Examples**
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```javascript
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var point1 = turf.point([-75.343, 39.984], {"marker-color": "#F00"});
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var point2 = turf.point([-75.534, 39.123], {"marker-color": "#00F"});
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var bearing = turf.rhumbBearing(point1, point2);
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//addToMap
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var addToMap = [point1, point2];
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point1.properties.bearing = bearing;
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point2.properties.bearing = bearing;
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```
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Returns **[number][5]** bearing from north in decimal degrees, between -180 and 180 degrees (positive clockwise)
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[1]: https://tools.ietf.org/html/rfc7946#section-3.1.2
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[2]: https://tools.ietf.org/html/rfc7946#section-3.1.1
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[3]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object
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[4]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean
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[5]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number
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<!-- This file is automatically generated. Please don't edit it directly:
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if you find an error, edit the source file (likely index.js), and re-run
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./scripts/generate-readmes in the turf project. -->
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---
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This module is part of the [Turfjs project](http://turfjs.org/), an open source
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module collection dedicated to geographic algorithms. It is maintained in the
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[Turfjs/turf](https://github.com/Turfjs/turf) repository, where you can create
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PRs and issues.
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### Installation
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Install this module individually:
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```sh
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$ npm install @turf/rhumb-bearing
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```
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Or install the Turf module that includes it as a function:
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```sh
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$ npm install @turf/turf
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```
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