offline images

friends list / select
friend distance

main/MyFriendsAround.WP7/Utils/Constants.cs

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+using System;
+using System.Net;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Shapes;
+
+namespace MyFriendsAround.WP7.Utils
+{
+    public class Constants
+    {
+        public const string MYPICTURE_FILE_NAME = "myphoto.jpg";
+        //viewmodels names
+        public const string VM_MAIN = "MainViewModel";
+        public const string VM_SETTINGS = "SettingsViewModel";
+    }
+}

main/MyFriendsAround.WP7/Utils/Haversine.cs

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+using System;
+using System.Net;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Shapes;
+
+namespace MyFriendsAround.WP7.Utils
+{
+    /// <summary>
+    /// The distance type to return the results in.
+    /// </summary>
+    public enum DistanceType { Miles, Kilometers };
+    /// <summary>
+    /// Specifies a Latitude / Longitude point.
+    /// </summary>
+    public struct Position
+    {
+        public double Latitude;
+        public double Longitude;
+    }
+
+    public class Haversine
+    {
+        /// <summary>
+        /// Returns the distance in miles or kilometers of any two
+        /// latitude / longitude points.
+        /// </summary>
+        /// <param name=”pos1″></param>
+        /// <param name=”pos2″></param>
+        /// <param name=”type”></param>
+        /// <returns></returns>
+        public static double Distance(Position pos1, Position pos2, DistanceType type)
+        {
+            double R = (type == DistanceType.Miles) ? 3960 : 6371;
+            double dLat = toRadian(pos2.Latitude - pos1.Latitude);
+            double dLon = toRadian(pos2.Longitude - pos1.Longitude);
+            double a = Math.Sin(dLat / 2) * Math.Sin(dLat / 2) +
+                Math.Cos(toRadian(pos1.Latitude)) * Math.Cos(toRadian(pos2.Latitude)) *
+                Math.Sin(dLon / 2) * Math.Sin(dLon / 2);
+            double c = 2 * Math.Asin(Math.Min(1, Math.Sqrt(a)));
+            double d = R * c;
+            return d;
+        }
+        /// <summary>
+        /// Convert to Radians.
+        /// </summary>
+        /// <param name="val"></param>
+        /// <returns></returns>
+        private static double toRadian(double val)
+        {
+            return (Math.PI / 180) * val;
+        }
+    }
+
+}