Virtual Earth Web Service Overview

Microsoft2008Year9MonthRelease Based onJavascriptOfMap control sdks 6.2And also releasedSoapOfVirtual Earth Web Service sdks 1.0Version. The former is similarGoogle Maps javascript APIIs well known.Virtual Earth Web Service SDKTo facilitate the development of desktop and mobile applications.

Virtual Earth Web Service It mainly includes four WCF Service: Geocode/reversegeocode Service , Imagery service , Route Service And Search Service . Geocode Service It mainly provides the geocode and inverse geocode services, the simplest understanding, address and latitude and longitude conversion, detailed explanation refer 《 Georeference geocode" . Imagery service Provides two services: Tile The metadata of the image, such as the shooting time. The second is to provide the image and its Uri Address. About Virtual Earth tile System 《 Virtual Earth tile image URIParameter Parsing . Route Service It mainly provides path analysis services, such as route selection between multiple locations and main streets that can be selected to reach a specific location. Search Service Standard Where/what Query service.

 

The functions of these services are not very new. If you are familiar with themGoogle Maps APIIn this case, the address resolution service and images are similar.UriAndGoogleOfLocal Search API. It only provides a different way to facilitate development in multiple modes, languages, and forms.

obtain Virtual Earth Web Service , like calling other APIs requires a API key , you also need a Virtual Earth token . Use Windows Live id logon here obtain a Virtual Earth platform developer account and password, then, use the account id and password to send a request to token service , it returns a string, that is, your Virtual Earth token .

The request and processing modes of these services are similarHttpwebrequestSimilarly, if a parameter is specified, send a requestCallback. It is easier to understand the practice under the guidance of theory, for exampleVe Web ServiceDevelop oneSilverlightApplication, OrDevelop one. Net,WCFApplication.

We recommend that you take a look at any of the above examples and try it to help you better understand it. No translation because you do not want to repeat the work,Step by stepTechnical EnglishArticleIt should be easy to read. Although the formation of this article is similar to the summary in EnglishMsdnRelated chapters, but considering that the introduction to the Summary section does not see Chinese content in China, I would like to give it a long time.

Category:View comments in GIS