Exemple #1
0
        /// <summary>
        /// Find single stop nearest to multiple location
        /// </summary>
        /// <param name="location"></param>
        /// <param name="radius"></param>
        public static Stop CloestToMultipleLocation(List<double[]> locations, decimal radius = 500)
        {
            List<Stop> list = new List<Stop>();

            using (ATDataContext context = new ATDataContext())
            {
                list = context.Stops.ToList();
            }

            GeoCoordinate endpoint = new GeoCoordinate();
            GeoCoordinate startpoint = new GeoCoordinate();
            double distance = 0;
            double new_distance = 0;
            Stop result = new Stop();

            foreach (Stop s in list)
            {
                new_distance = 0;
                startpoint = new GeoCoordinate(s.Latitude.GetValueOrDefault(), s.Longitude.GetValueOrDefault());

                foreach(var location in locations)
                {
                    endpoint = new GeoCoordinate(location[0], location[1]);
                    new_distance += startpoint.GetDistanceTo(endpoint);
                }

                if (list.IndexOf(s) == 0 || new_distance < distance)
                {
                    distance = new_distance;
                    result = s;
                }
            }

            return result;
        }
Exemple #2
0
        /// <summary>
        /// Find single stop nearest to single location
        /// </summary>
        /// <param name="location"></param>
        /// <param name="radius"></param>
        public static Stop CloestToSingleLocation(double[] location)
        {
            List<Stop> list = new List<Stop>();

            using (ATDataContext context = new ATDataContext())
            {
                list = context.Stops.ToList();
            }

            GeoCoordinate endpoint = new GeoCoordinate(location[0], location[1]);
            GeoCoordinate startpoint = new GeoCoordinate();
            double distance = 0;
            double new_distance = 0;
            Stop result = new Stop();

            foreach (Stop s in list)
            {
                startpoint = new GeoCoordinate(s.Latitude.GetValueOrDefault(), s.Longitude.GetValueOrDefault());
                new_distance = startpoint.GetDistanceTo(endpoint);

                if (list.IndexOf(s) == 0 || new_distance < distance)
                {
                    distance = new_distance;
                    result = s;
                }
            }

            return result;
        }