@turf/great-circle

@turf/great-circle

greatCircle

Calculate great circles routes as LineString

Parameters

• start (Geometry | Feature<Point> | Array<number>) source point feature
• end (Geometry | Feature<Point> | Array<number>) destination point feature
• options Object Optional parameters (optional, default {})
  • options.properties Object line feature properties (optional, default {})
  • options.npoints number number of points (optional, default 100)
  • options.offset number offset controls the likelyhood that lines will be split which cross the dateline. The higher the number the more likely. (optional, default 10)

Examples

var start = turf.point([-122, 48]);
var end = turf.point([-77, 39]);

var greatCircle = turf.greatCircle(start, end, {'name': 'Seattle to DC'});

//addToMap
var addToMap = [start, end, greatCircle]

Returns Feature<LineString> great circle line feature

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This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.

Installation

Install this module individually:

$ npm install @turf/great-circle

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

$ npm install @turf/turf