10 examples of 'javascript distance between two coordinates' in JavaScript

96
function getDistance(lat1, lon1, lat2, lon2) {
97
  let earthRadius = 6371;
98
  let deltaLat = toRad(lat2 - lat1);
99
  let deltaLong = toRad(lon2 - lon1);
100
  let currentLat = toRad(lat1);
101
  let finalLat = toRad(lat2);
102
103
  let pythag =
104
    Math.sin(deltaLat / 2) * Math.sin(deltaLat / 2) +
105
    Math.sin(deltaLong / 2) *
106
      Math.sin(deltaLong / 2) *
107
      Math.cos(currentLat) *
108
      Math.cos(finalLat);
109
  let deriv = 2 * Math.atan2(Math.sqrt(pythag), Math.sqrt(1 - pythag));
110
  let mult = earthRadius * deriv;
111
  kmToMiles = mult / 1.6;
112
  return Math.round(kmToMiles * 100) / 100;
113
}

73
function getDistance(lat, lon) {
74
  if (olat !== null) {
75
    distance += __distanceFromPrev(olat, olon, lat, lon);
76
    // console.log("distance: ", distance);
77
  }
78
  olat = lat;
79
  olon = lon;
80
  return distance;
81
}

303
function _getDistance(startCoords, endCoords) {
304
  const dx = startCoords.x - endCoords.x;
305
  const dy = startCoords.y - endCoords.y;
306
307
  return Math.sqrt(dx * dx + dy * dy);
308
}

191
function getDistance(lat1, lon1, lat2, lon2) {
192
  lat1 = THREE.Math.degToRad(lat1);
193
  lon1 = THREE.Math.degToRad(lon1);
194
  lat2 = THREE.Math.degToRad(lat2);
195
  lon2 = THREE.Math.degToRad(lon2);
196
197
  var a = Math.pow(Math.sin(( lon2 - lon1 ) / 2.0), 2);
198
  var b = Math.pow(Math.sin(( lat2 - lat1 ) / 2.0), 2);
199
  var c = Math.sqrt(a + Math.cos(lon2) * Math.cos(lon1) * b);
200
201
  return 2 * Math.asin(c) * sphereRadius;
202
}

56
function distanceRadians(lat1, lng1, lat2, lng2) {
57
  return arcHav(havDistance(lat1, lat2, lng1 - lng2));
58
}

17
function distanceKM(lonlat1, lonlat2) {
18
    log.log("distanceKM", lonlat1, lonlat2);
19
    // convert from degree to radial
20
    var phi1 = deg2rad(lonlat1.lat);
21
    var phi2 = deg2rad(lonlat2.lat);
22
    var lambda1 = deg2rad(lonlat1.lon);
23
    var lambda2 = deg2rad(lonlat2.lon);
24
    // compute the deltas
25
    var dPhi = phi1 - phi2; // Δφ
26
    var dLambda = lambda1 - lambda2; // Δλ
27
    // compute haversine formula
28
    var dRoh = 2 * Math.asin(Math.sqrt(
29
            Math.pow(Math.sin(dPhi / 2), 2) +
30
            Math.cos(phi1) * Math.cos(phi2) *
31
                Math.pow(Math.sin(dLambda / 2), 2)
32
        ));
33
    var distance = EARTH_RADIUS_KM * dRoh;
34
    return distance;
35
}

3
static distance(x1, y1, x2, y2) {
4
5
    return Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
6
}

68
function distance(x1, y1, x2, y2) {
69
    return Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
70
}

48
export function geoSphericalDistance(a: Vec2, b: Vec2): number {
49
  const x: number = geoLonToMeters(a[0] - b[0], (a[1] + b[1]) / 2);
50
  const y: number = geoLatToMeters(a[1] - b[1]);
51
  return Math.sqrt(x * x + y * y);
52
}

91
function geoSphericalDistance(a, b) {
92
  var x = geoLonToMeters(a[0] - b[0], (a[1] + b[1]) / 2);
93
  var y = geoLatToMeters(a[1] - b[1]);
94
  return Math.sqrt(x * x + y * y);
95
}