c#:将地址转换为经度和纬度

时间:2014-02-19 11:29:21

标签: c# google-maps

我试图使用地理编码api

使用此代码将地址转换为经度和纬度
protected void Button1_Click(object sender, EventArgs e)
{
    IGeocoder geocoder = new GoogleGeocoder() {  };
    Address[] addresses = geocoder.Geocode("#65/1 bangalore").ToArray();
    foreach (Address adrs in addresses)
    {
        Response.Write("address:"+adrs);
    }
}

我得到的答案是更详细的地址而不是经度和纬度。例如我得到的代码

address:Hari Om Trust Tapovana, 1, Bangalore, Karnataka 562123, India 

有人请告诉我我必须做哪些修改才能获得经度和纬度?

googlegeocoder的代码是

 #region Assembly Geocoding.dll, v3.1.0.0
    // C:\Users\Admin\Documents\Visual Studio 2012\WebSites\learn1\Bin\Geocoding.dll
    #endregion

    using Geocoding;
    using System;
    using System.Collections.Generic;
    using System.Net;
    using System.Threading;
    using System.Threading.Tasks;

    namespace Geocoding.Google
    {
        public class GoogleGeocoder : IGeocoder, IAsyncGeocoder
        {
            public GoogleGeocoder();

            public string ApiKey { get; set; }
            public Bounds BoundsBias { get; set; }
            public BusinessKey BusinessKey { get; set; }
            public string Language { get; set; }
            public WebProxy Proxy { get; set; }
            public string RegionBias { get; set; }
            public string ServiceUrl { get; }

            public IEnumerable<GoogleAddress> Geocode(string address);
            public Task<IEnumerable<GoogleAddress>> GeocodeAsync(string address);
            public Task<IEnumerable<GoogleAddress>> GeocodeAsync(string address, CancellationToken cancellationToken);
            public IEnumerable<GoogleAddress> ReverseGeocode(Location location);
            public IEnumerable<GoogleAddress> ReverseGeocode(double latitude, double longitude);
            public Task<IEnumerable<GoogleAddress>> ReverseGeocodeAsync(double latitude, double longitude);
            public Task<IEnumerable<GoogleAddress>> ReverseGeocodeAsync(double latitude, double longitude, CancellationToken cancellationToken);

            protected class RequestState
            {
                public readonly CancellationToken? cancellationToken;
                public readonly HttpWebRequest request;

                public RequestState(HttpWebRequest request, CancellationToken? cancellationToken);
            }
        }
    }

3 个答案:

答案 0 :(得分:3)

啊......事实很简单:

protected void Button1_Click(object sender, EventArgs e)
{
    IGeocoder geocoder = new GoogleGeocoder() {  };
    Address[] addresses = geocoder.Geocode("#65/1 bangalore").ToArray();
    foreach (Address adrs in addresses)
    {
        Response.Write("address:"+adrs.Coordinates);
    }
}

干杯

编辑:您只看到街道地址的原因是因为您的循环默认调用了Address.ToString()。

答案 1 :(得分:0)

参考: 谷歌有一个地理编码API,对于他们拥有谷歌地图数据的大多数地方来说似乎都能很好地运作。

http://googlemapsapi.blogspot.com/2006/06/geocoding-at-last.html

他们提供在线地理编码(通过JavaScript):

http://code.google.com/apis/maps/documentation/services.html#Geocoding

或后端地理编码(通过HTTP请求):

http://code.google.com/apis/maps/documentation/services.html#Geocoding_Direct

数据通常与Google地图本身使用的数据相同。 (请注意,有一些例外情况,例如英国或以色列,其数据来自不同的来源,质量略有下降)

答案 2 :(得分:0)

以下是一个简单的例子:

Adress to Lat- long generation

由于