great-circle-cursor

get the coordinates for a point along a great circle course heading for a distance in meters

example

calculate a point 150km southeast (135 degrees) of fairbanks:

var gcc = require('great-circle-cursor')
var fairbanks = [-147.7,64.8]
console.log(gcc([],fairbanks,135,150_000))

output:

[ -145.53922765306623, 63.8309774628036 ]

var gcc = require('great-circle-cursor')

Calculate the coordinates for a point distance meters from the start coordinates (in [lon,lat] degrees) with a heading of course degrees.

The result is stored in out and out is returned.

npm install great-circle-cursor

bsd