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POSql Server spatial data type Geometry, STDistance and units : Get meters?
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2013-11-01T20:32:42.783
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<p>I'm using Sql server 2012 and google maps client-side, I use SRID 3785, as it's mercator that maps uses. I use geometry point data type to store locations. I read geometry is faster than geography. But when I'm trying to calculate distance between points and when I use STDistance in particular, I get a distance ... in decimal degrees... which is great .. but I really need meters to display them to users... So, when you know your SRID, when you know which location on Earth your targeting exactly, how can you convert the distance in decimal degrees to meters ? I know geography deals with meter... but how do you get meters from geometry distances calculations ? I really wonder how developers were doin' before geography types appeared... thank you !!</p>
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<sql-server><geometry><geospatial><spatial><geography>
Title
Sql Server spatial data type Geometry, STDistance and units : Get meters?
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1. COAre you sure about that SRID? When I query my local 2012 instance's sys.spatial_reference_systems, I don't see one with that ID...
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  POSql Server spatial data type Geometry, STDistance and units : Get meters?
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  USBen Thul
2. CO@Ben Thul - you won't find that SRID there for two reasons: 1.) Because it should be 3857, not 3785 (http://alastaira.wordpress.com/2011/01/23/the-google-maps-bing-maps-spherical-mercator-projection/) 2.) Because the sys.spatial_reference_systems table only records geodetic spatial reference systems - EPSG:3857 is a projected reference system.
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  POSql Server spatial data type Geometry, STDistance and units : Get meters?
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  USAlastair Aitchison

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