I'm doing this now: <div class="snippet-clipboard-content notranslate position-rel

<a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/us

... or you can use Array.filter() which is a bit shorter: <div class="snippet-clip

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<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clip

orderByDistance in forEach loop? about geolib HOT 6 CLOSED

manuelbieh commented on July 17, 2024

orderByDistance in forEach loop?

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Comments (6)

renege commented on July 17, 2024

@manuelbieh ?

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manuelbieh commented on July 17, 2024

Push the coordinates of all the locations which are within your circle into an array and use this one as second parameter in geolib.orderByDistance()

var basePosition = {latitude: 51.515, longitude: 7.453619};
var locations = [
  {latitude: 52.516272, longitude: 13.377722},
  {latitude: 51.528, longitude: 7.45425},
  {latitude: 51.503333, longitude: -0.119722},
  {latitude: 51.515, longitude: 7.463619}
];
var locationsWithinRadius = [];
locations.forEach(function(location) {
  if(geolib.isPointInCircle(basePosition, location, 10000)) {
    locationsWithinRadius.push(location);
  }
});

geolib.orderByDistance(basePosition, locationsWithinRadius);

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manuelbieh commented on July 17, 2024

... or you can use Array.filter() which is a bit shorter:

var basePosition = {latitude: 51.515, longitude: 7.453619};
var locations = [
  {latitude: 52.516272, longitude: 13.377722},
  {latitude: 51.528, longitude: 7.45425},
  {latitude: 51.503333, longitude: -0.119722},
  {latitude: 51.515, longitude: 7.463619}
];

geolib.orderByDistance(basePosition, locations.filter(function(location) {
  return geolib.isPointInCircle(basePosition, location, 10000);
}));

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renege commented on July 17, 2024

@manuelbieh thnx, tried that but it's not working..

///basePosition: 
{latitude: 52.7027, longitude: 6.2001316667}

Return this order:

{latitude: 52.2619, longitude: 6.22439} #1
{latitude: 52.2727, longitude: 6.78999} #2
{latitude: 52.2196, longitude: 6.88408} #3
{latitude: 52.259, longitude: 6.2261} #4
{latitude: 52.1919, longitude: 5.95327} #5

That's not correct, because number 1 and 4 are just a few streets away from each other.

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renege commented on July 17, 2024

Tried with multiple coordinates, it never is correct.

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manuelbieh commented on July 17, 2024

var basePosition = {latitude: 52.7027, longitude: 6.2001316667};
geolib.orderByDistance(basePosition, [
  {latitude: 52.2619, longitude: 6.22439},
  {latitude: 52.2727, longitude: 6.78999},
  {latitude: 52.2196, longitude: 6.88408},
  {latitude: 52.259, longitude: 6.2261},
  {latitude: 52.1919, longitude: 5.95327}
]);

Returns the following result:

[
  {
    "key": "0",
    "latitude": 52.2619,
    "longitude": 6.22439,
    "distance": 49078
  },
  {
    "key": "3",
    "latitude": 52.259,
    "longitude": 6.2261,
    "distance": 49405
  },
  {
    "key": "4",
    "latitude": 52.1919,
    "longitude": 5.95327,
    "distance": 59266
  },
  {
    "key": "1",
    "latitude": 52.2727,
    "longitude": 6.78999,
    "distance": 62410
  },
  {
    "key": "2",
    "latitude": 52.2196,
    "longitude": 6.88408,
    "distance": 71070
  }
]

http://codepen.io/anon/pen/epBrEB

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