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M-erb/function

Forked from manix/calculate geometric euclidean distance
Created August 10, 2019 21:39
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Distance between points simplified
Raw
function
getDistanceFromLatLonInM(lat1, lon1, lat2, lon2) {
var a =
Math.pow(Math.sin(deg2rad(lat2 - lat1) / 2), 2) +
Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) *
Math.pow(Math.sin(deg2rad(lon2 - lon1) / 2), 2);
return 12742000 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
}
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