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MAPG-6 introduce and unify geo calculations

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bence committed 2020-05-19 19:01:35 +02:00
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commit e15421af8b
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+42 -9
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public/static/js/mapguesser.js
+7 -8
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@@ -11,15 +11,14 @@ var Util = {
var lat2 = Math.deg2rad(position2.lat);
var lng2 = Math.deg2rad(position2.lng);
var latDelta = lat2 - lat1;
var lonDelta = lng2 - lng1;
var angleCos = Math.cos(lat1) * Math.cos(lat2) * Math.cos(lng2 - lng1) +
Math.sin(lat1) * Math.sin(lat2);
var angle = 2 * Math.asin(
Math.sqrt(
Math.pow(Math.sin(latDelta / 2), 2) +
Math.cos(lat1) * Math.cos(lat2) * Math.pow(Math.sin(lonDelta / 2), 2)
)
);
if (angleCos > 1.0) {
angleCos = 1.0;
}
var angle = Math.acos(angleCos);
return angle * Util.EARTH_RADIUS_IN_METER;
},