using ServiceStack.Redis;

 using System;

 using System.Collections.Generic;

 using System.Text;

 namespace RedisDemo

 {

     class NearByDemo

     {

         public static void Start()

         {

             var redisMangement = new RedisManagerPool("127.0.0.1:6379");

             var client = redisMangement.GetClient();

             //---写入地理信息---

             RedisGeo[] redisGeos = new RedisGeo[]

             {

                 new RedisGeo()

                 {

                     Longitude=117.12,

                     Latitude=39.08,

                     Member="tianjin"

                 },

                 new RedisGeo()

                 {

                     Longitude=114.29,

                     Latitude=38.02,

                     Member="beijing"

                 }

             };

             //GEOADD key longitude latitude member [longitude latitude member ...]

             //summary: Add one or more geospatial items in the geospatial index represented using a sorted set

             client.AddGeoMembers("geo", redisGeos);

             //---获取两个地理位置之间的距离---

             //GEODIST key member1 member2 [unit]

             //summary: Returns the distance between two members of a geospatial index

             double distance = client.CalculateDistanceBetweenGeoMembers("geo", "tianjin", "beijing", "km");

             Console.WriteLine(distance);

             //---获取某城市方圆多少公里内的其他城市（狭义）---

             //GEORADIUS key longitude latitude radius m|km|ft|mi [WITHCOORD] [WITHDIST] [WITHHASH] [COUNT count] [ASC|DESC] [STORE key] [STOREDIST key]

             //summary: Query a sorted set representing a geospatial index to fetch members matching a given maximum distance from a point

             List<RedisGeoResult> geoResults = client.FindGeoResultsInRadius("geo", 115.03, 38.44, , "km");

             foreach (var item in geoResults)

             {

                 Console.WriteLine($"{item.Member}--{item.Distance}--{item.Unit}");

             }

         }

     }

 }