Find points in radius distance.

GeoLocationFilterByDistance.java

          /**
          * https://clickherelabs.com/development-2/distance-searching-and-mysql/
          * http://janmatuschek.de/LatitudeLongitudeBoundingCoordinates
          */
    static int distance = 10;
    static double origLatitude = 0; //your latitude in degrees
    static double origLongitude = 0; //your longitude in degrees

    public static void main(String[] args) {
        List<LatLng> result = filterLocations(origLatitude, origLongitude, distance, getList());
        if (result.size() > 0) {
            for (LatLng latLng : result) {
                System.out.println(latLng.getNombre() + " " + latLng.getDistancia() + "m");
            }
        } else {
            System.out.println("Empty.");
        }
    }

    private static List<LatLng> filterLocations(double origLatitude, double origLongitude, int distance, List<LatLng> points) {
        List<LatLng> pointsFiltered = new ArrayList<>();

        for (LatLng item : points) {
            double variable = distance / (69 * Math.cos(Math.toRadians(origLatitude)));
            double value = (double) distance / 69;
            if ((item.getLatitude() >= origLatitude - value && item.getLatitude() <= origLatitude + value) &&
                    (item.getLongitude() >= origLongitude - (variable) && item.getLongitude() <= origLongitude + variable)) {
                double distanceSite = 3956 * Math.acos(Math.cos(Math.toRadians(origLatitude)) * Math.cos(Math.toRadians(item.getLatitude())) * Math.cos(Math.toRadians(origLongitude) - Math.toRadians(item.getLongitude())) + Math.sin(Math.toRadians(origLatitude)) * Math.sin(Math.toRadians(item.getLatitude())));
                if (distanceSite <= distance) {
                    item.setDistancia(distanceSite);
                    pointsFiltered.add(item);
                }
            }
        }
        return pointsFiltered;
    }