I am looking for a mapserver, or a tool which can be embedded into the website. where I want to be able to perform queries eg: 5 km around radius of nearest cities etc. I have the data for it, in geo data format. I want to know the best web applications available, or tools which can be embedded into website.
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- dongzhi1949 2011-09-21 12:13关注
Actually you can use the built in SQL 2008 geography data type (spacial data) and do simple calculations
http://msdn.microsoft.com/en-us/library/bb895266.aspx
But you must first find lat/lon of each location you are trying to find the distance to or from which you can use google api or others... Here is an example query.
select * from tableX where GeoFieldInDb.STDistance(geoLocation2) <= number
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