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distance between coordinates | location

Johnvict answered on March 29, 2022 Popularity 9/10 Helpfulness 2/10

answer distance between coordinates | location

related calculate distance between two coordinates

distance between coordinates | location

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class CoordDistance
 {
    public $lat_a = 0;
    public $lon_a = 0;
    public $lat_b = 0;
    public $lon_b = 0;

    public $measure_unit = 'kilometers';

    public $measure_state = false;

    public $measure = 0;

    public $error = '';



    public function DistAB()

      {
          $delta_lat = $this->lat_b - $this->lat_a ;
          $delta_lon = $this->lon_b - $this->lon_a ;

          $earth_radius = 6372.795477598;

          $alpha    = $delta_lat/2;
          $beta     = $delta_lon/2;
          $a        = sin(deg2rad($alpha)) * sin(deg2rad($alpha)) + cos(deg2rad($this->lat_a)) * cos(deg2rad($this->lat_b)) * sin(deg2rad($beta)) * sin(deg2rad($beta)) ;
          $c        = asin(min(1, sqrt($a)));
          $distance = 2*$earth_radius * $c;
          $distance = round($distance, 4);

          $this->measure = $distance;

      }
    }

Popularity 9/10 Helpfulness 2/10 Language php

Source: stackoverflow.com

Tags: between coordinates distance location php

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Contributed on Nov 26 2022

Johnvict

0 Answers Avg Quality 2/10

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calculate distance between two coordinates

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static double coordinateDistance(
      double lat1, double lng1, double lat2, double lng2) {
    const p = 0.017453292519943295;
    const c = cos;
    final a = 0.5 -
        c((lat2 - lat1) * p) / 2 +
        c(lat1 * p) * c(lat2 * p) * (1 - c((lng2 - lng1) * p)) / 2;
    return 12742 * asin(sqrt(a));
  }

  // calculate distance from polyline-coordinates (list of locations)
  static double calculateDistance(
      {@required List<Location> polylineCoordinates}) {
    double _totalDistance = 0.0;

    for (int i = 0; i < polylineCoordinates.length - 1; i++) {
      _totalDistance += coordinateDistance(
        polylineCoordinates[i].lat,
        polylineCoordinates[i].lng,
        polylineCoordinates[i + 1].lat,
        polylineCoordinates[i + 1].lng,
      );
    }

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Source: Grepper

Tags: between

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Contributed on Mar 29 2022

Doubtful Dunlin

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distance between coordinates | location

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distance between coordinates | location

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calculate distance between two coordinates

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