geolib/es/getGreatCircleBearing.js

Library to provide basic geospatial operations like distance calculation, decoding of sexagesimal coordinates etc.

"use strict";Object.defineProperty(exports,"__esModule",{value:true});exports.default=void 0;var _getLatitude=_interopRequireDefault(require("./getLatitude"));var _getLongitude=_interopRequireDefault(require("./getLongitude"));var _toRad=_interopRequireDefault(require("./toRad"));var _toDeg=_interopRequireDefault(require("./toDeg"));function _interopRequireDefault(e){return e&&e.__esModule?e:{default:e}}const getGreatCircleBearing=(origin,dest)=>{const destLat=(0,_getLatitude.default)(dest);const detLon=(0,_getLongitude.default)(dest);const originLat=(0,_getLatitude.default)(origin);const originLon=(0,_getLongitude.default)(origin);const bearing=((0,_toDeg.default)(Math.atan2(Math.sin((0,_toRad.default)(detLon)-(0,_toRad.default)(originLon))*Math.cos((0,_toRad.default)(destLat)),Math.cos((0,_toRad.default)(originLat))*Math.sin((0,_toRad.default)(destLat))-Math.sin((0,_toRad.default)(originLat))*Math.cos((0,_toRad.default)(destLat))*Math.cos((0,_toRad.default)(detLon)-(0,_toRad.default)(originLon))))+360)%360;return bearing};var _default=exports.default=getGreatCircleBearing;