m/latlng.js at master · dominictarr/m

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function round (n) {

return Math.round(n*1000)/1000

}

function miles (lat, acc=6) {

var [m, f] = lat.toString().split('.')

return m + "'" + round((+('0.'+f)) * 60)

}

var LATLNG = {

stringify: function (ll, space, acc=6) {

return miles(ll.lat, acc) + ',' + (space ? ' ' : '') + miles(ll.lng, acc)

parse: function (str) {

var [lat, lng] = str.split(',').map(l => {

var [lat, miles] = l.trim().split("'")

return (+lat + (+lat < 0 ? -(miles/60) : (miles/60)))

})

return {lat, lng}

}

module.exports = LATLNG