First, I want to get the nearby shop from the backend. For that, I am sending Center latitude and longitude of the map and the diagonal distance of map. By that, I am getting the nearby shop which is under my current viewport. But when I zoom in on that viewport then I am not getting the shop from server side. I am using mapkit and in serverside mongo geonear function is getting used for calculation.
I am very confused how to solve this issue.
Below is the short snippet of my code for diagonal distance calculation
let topLeftCorner = mapView.convert(.zero, toCoordinateFrom: mapView)
let cllocationTopLeftCorner = CLLocation(latitude: topLeftCorner.latitude, longitude: topLeftCorner.longitude)
//Center viewPort lat, long of map
let centerPoint = mapView.centerCoordinate
let cllocationOfCenter = CLLocation(latitude: centerPoint.latitude, longitude: centerPoint.longitude)
//calculating air distance from two lat long
let distanceFromCenter = cllocationTopLeftCorner.distance(from: cllocationOfCenter)
