从地址C获取纬度经度 [英] Get Latitude Longitude from an address c#

问题描述

我正在使用来自Geocoder的Web服务来获取地址，城市和州的经纬度.当我使用下面的示例时，我没有得到纬度和经度.我在这里做错什么了吗?

I am using a webservice from geocoder to get the lat and long from address, city and state. When I use the example below, i don't get the lat and long. Am I doing something wrong here.

请求的地址:1125 E. 102nd Street，洛杉矶，加利福尼亚

Requested address: 1125 E. 102nd Street, Los Angeles, CA

这是我的代码:

private void GetLatLongFromAddress(string street, string city, string state)
{
    string geocoderUri = string.Format(@"http://rpc.geocoder.us/service/rest?address={0},{1},{2}", street, city, state);
    XmlDocument geocoderXmlDoc = new XmlDocument();
    geocoderXmlDoc.Load(geocoderUri);
    XmlNamespaceManager nsMgr = new XmlNamespaceManager(geocoderXmlDoc.NameTable);
    nsMgr.AddNamespace("geo", @"http://www.w3.org/2003/01/geo/wgs84_pos#");
    string sLong = geocoderXmlDoc.DocumentElement.SelectSingleNode(@"//geo:long", nsMgr).InnerText;
    string sLat = geocoderXmlDoc.DocumentElement.SelectSingleNode(@"//geo:lat", nsMgr).InnerText;

    Latitude = Double.Parse(sLat);
    Longitude = Double.Parse(sLong);
}

纬度和经度返回0.我也尝试添加邮政编码，但这没用.有没有更好的网络服务可以为我提供最新的结果.

The lat and long comes back with 0. I tried to add zip code too but that didn't work. Is there any better webservices that would give me the up to date results.

谢谢.

推荐答案

我经常使用

I often use the Bing Maps Rest APIs. You can geo-code using requests like the following:

http://dev.virtualearth.net/REST/v1/Locations/CA/adminDistrict/postalCode/locality/addressLine?includeNeighborhood=includeNeighborhood&key=BingMapsKey

您可以在我在响应式扩展上写的 codeproject文章中看到它的使用情况.

You can see it in use in a codeproject article I wrote on reactive extensions.

例如，您的地址:

http://dev.virtualearth.net/REST/v1/Locations/US/1125%20E.%20102nd%20Street,%20Los%20Angeles,%20CA?key=Ai9-KNy6Al-r_ueyLuLXFYB_GlPl-c-_iYtu16byW86qBx9uGbsdJpwvrP4ZUdgD

给出以下响应:

{
   "authenticationResultCode":"ValidCredentials",
   "brandLogoUri":"http:\/\/dev.virtualearth.net\/Branding\/logo_powered_by.png",
   "copyright":"Copyright © 2012 Microsoft and its suppliers. All rights reserved. This API cannot be accessed and the content and any results may not be used, reproduced or transmitted in any manner without express written permission from Microsoft Corporation.",
   "resourceSets":[
      {
         "estimatedTotal":1,
         "resources":[
            {
               "__type":"Location:http:\/\/schemas.microsoft.com\/search\/local\/ws\/rest\/v1",
               "bbox":[
                  33.940492293415652,
                  -118.26180800227225,
                  33.948217728557005,
                  -118.24939194889963
               ],
               "name":"1125 E 102ND St, Los Angeles, CA 90002",
               "point":{
                  "type":"Point",
                  "coordinates":[
                     33.944355010986328,
                     -118.25559997558594
                  ]
               },
               "address":{
                  "addressLine":"1125 E 102ND St",
                  "adminDistrict":"CA",
                  "adminDistrict2":"Los Angeles Co.",
                  "countryRegion":"United States",
                  "formattedAddress":"1125 E 102ND St, Los Angeles, CA 90002",
                  "locality":"Los Angeles",
                  "postalCode":"90002"
               },
               "confidence":"High",
               "entityType":"Address",
               "geocodePoints":[
                  {
                     "type":"Point",
                     "coordinates":[
                        33.944355010986328,
                        -118.25559997558594
                     ],
                     "calculationMethod":"Parcel",
                     "usageTypes":[
                        "Display"
                     ]
                  },
                  {
                     "type":"Point",
                     "coordinates":[
                        33.944118499755859,
                        -118.25559997558594
                     ],
                     "calculationMethod":"Interpolation",
                     "usageTypes":[
                        "Route"
                     ]
                  }
               ],
               "matchCodes":[
                  "Good"
               ]
            }
         ]
      }
   ],
   "statusCode":200,
   "statusDescription":"OK",
   "traceId":"81518ba504a3494bb0b62bdb6aa4b291|LTSM002104|02.00.83.500|LTSMSNVM001473, LTSMSNVM001463, LTSMSNVM001452, LTSMSNVM001851, LTSMSNVM001458, LTSMSNVM001462"
}

或者...对于XML数据，添加 o = xml :

Or ... for XML data, add o=xml:

http://dev.virtualearth.net/REST/v1/Locations/US/1125%20E.%20102nd%20Street,%20Los%20Angeles,%20CA?o=xml&key=Ai9-KNy6Al-r_ueyLuLXFYB_GlPl-c-_iYtu16byW86qBx9uGbsdJpwvrP4ZUdgD

哪个给:

<Response>
  <Copyright>Copyright ? 2012 Microsoft and its suppliers. All rights reserved. This API cannot be accessed and the content and any results may not be used, reproduced or transmitted in any manner without express written permission from Microsoft Corporation.</Copyright>
  <BrandLogoUri>http://dev.virtualearth.net/Branding/logo_powered_by.png</BrandLogoUri>
  <StatusCode>200</StatusCode>
  <StatusDescription>OK</StatusDescription>
  <AuthenticationResultCode>ValidCredentials</AuthenticationResultCode>
  <TraceId>b9af8a6b058b455ca9c368b9e32142fe|LTSM002102|02.00.83.500|LTSMSNVM002001, LTSMSNVM001464, LTSMSNVM001451, LTSMSNVM001452, LTSMSNVM001457, LTSMSNVM002052, LTSMSNVM001461</TraceId>
  <ResourceSets>
    <ResourceSet>
      <EstimatedTotal>1</EstimatedTotal>
      <Resources>
        <Location>
          <Name>1125 E 102ND St, Los Angeles, CA 90002</Name>
          <Point>
            <Latitude>33.944355010986328</Latitude>
            <Longitude>-118.25559997558594</Longitude>
          </Point>
          <BoundingBox>
            <SouthLatitude>33.940492293415652</SouthLatitude>
            <WestLongitude>-118.26180800227225</WestLongitude>
            <NorthLatitude>33.948217728557005</NorthLatitude>
            <EastLongitude>-118.24939194889963</EastLongitude>
          </BoundingBox>
          <EntityType>Address</EntityType>
          <Address>
            <AddressLine>1125 E 102ND St</AddressLine>
            <AdminDistrict>CA</AdminDistrict>
            <AdminDistrict2>Los Angeles Co.</AdminDistrict2>
            <CountryRegion>United States</CountryRegion>
            <FormattedAddress>1125 E 102ND St, Los Angeles, CA 90002</FormattedAddress>
            <Locality>Los Angeles</Locality>
            <PostalCode>90002</PostalCode>
          </Address>
          <Confidence>High</Confidence>
          <MatchCode>Good</MatchCode>
          <GeocodePoint>
            <Latitude>33.944355010986328</Latitude>
            <Longitude>-118.25559997558594</Longitude>
            <CalculationMethod>Parcel</CalculationMethod>
            <UsageType>Display</UsageType>
          </GeocodePoint>
          <GeocodePoint>
            <Latitude>33.944118499755859</Latitude>
            <Longitude>-118.25559997558594</Longitude>
            <CalculationMethod>Interpolation</CalculationMethod>
            <UsageType>Route</UsageType>
          </GeocodePoint>
        </Location>
      </Resources>
    </ResourceSet>
  </ResourceSets>
</Response>

因此您给定地址的经度/纬度为(33.9，-118.2)

So the lat / long for your given address is (33.9, -118.2)

这篇关于从地址C获取纬度经度的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！