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@turf/great-circle

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@turf/great-circle

turf great-circle module

  • 7.1.0
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@turf/great-circle

greatCircle

Calculate great circles routes as LineString or MultiLineString. If the start and end points span the antimeridian, the resulting feature will be split into a MultiLineString.

Parameters

  • start Coord source point feature

  • end Coord 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, {properties: {name: 'Seattle to DC'}});

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

Returns Feature<(LineString | MultiLineString)> great circle line feature


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 single module individually:

$ npm install @turf/great-circle

Or install the all-encompassing @turf/turf module that includes all modules as functions:

$ npm install @turf/turf

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Package last updated on 09 Aug 2024

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