Tôi thường sử dụng số Bing Maps Rest APIs. Bạn có thể địa lý mã sử dụng các yêu cầu như sau:
http://dev.virtualearth.net/REST/v1/Locations/CA/adminDistrict/postalCode/locality/addressLine?includeNeighborhood=includeNeighborhood&key=BingMapsKey
Bạn có thể nhìn thấy nó được sử dụng trong một codeproject article I wrote on reactive extensions.
Ví dụ, địa chỉ của bạn:
http://dev.virtualearth.net/REST/v1/Locations/US/1125%20E.%20102nd%20Street,%20Los%20Angeles,%20CA?key=Ai9-KNy6Al-r_ueyLuLXFYB_GlPl-c-_iYtu16byW86qBx9uGbsdJpwvrP4ZUdgD
Cho các phản ứng sau:
{
"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"
}
Hoặc ... cho dữ liệu XML, thêm 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
Mà cho:
<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>
Vì vậy, các lat/dài cho địa chỉ cho bạn là (33,9, -118,2)
[Google maps] (http://code.google.com/apis/maps/faq.html#geocoder_exists) thực hiện điều này –
Đây không thực sự là câu hỏi C#. Đây là câu hỏi về dịch vụ web. –
Vui lòng xem lại câu hỏi của bạn. Đây là về một dịch vụ web cụ thể, không phải là C#. – Strillo