ubar search

Keywords:

google map radius search
Radius/nearest results


tutorials:

https://www.youtube.com/watch?v=szAVI-YvbmQ (distance lat | lon)
https://stackoverflow.com/questions/10053358/measuring-the-distance-between-two-coordinates-in-php (get distance between lat long)
https://www.youtube.com/watch?v=dWn9iBYiJrk


tools:

angular google map package
geofire
https://www.youtube.com/watch?v=qS3BEYIDrGU
https://stackoverflow.com/questions/5755905/radius-nearest-results-google-maps-api
http://jsfiddle.net/kjy112/3feUC/
https://www.youtube.com/watch?v=5oG2Q2GMOBE
https://developers.google.com/maps/documentation/javascript/geometry?hl=el#Distance





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main function :


function distance($lat1, $lon1, $lat2, $lon2, $unit) {

  $theta = $lon1 - $lon2;
  $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) +  cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
  $dist = acos($dist);
  $dist = rad2deg($dist);
  $miles = $dist * 60 * 1.1515;
  $unit = strtoupper($unit);

  if ($unit == "K") {
      return ($miles * 1.609344);
  } else if ($unit == "N") {
      return ($miles * 0.8684);
  } else {
      return $miles;
  }
}


echo distance(32.9697, -96.80322, 29.46786, -98.53506, "M") . " Miles<br>";
echo distance(32.9697, -96.80322, 29.46786, -98.53506, "K") . " Kilometers<br>";
echo distance(32.9697, -96.80322, 29.46786, -98.53506, "N") . " Nautical Miles<br>";