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EnvelopeAngle (geography Data Type) |
EnvelopeAngle (geography Data Type) |
MladjoA |
mlandzic |
03/14/2017 |
sql |
t-sql |
reference |
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=azuresqldb-current || >=sql-server-2016 || >=sql-server-linux-2017 || =azuresqldb-mi-current || =fabric |
[!INCLUDE SQL Server Azure SQL Database Azure SQL Managed Instance FabricSQLDB]
Returns the maximum angle between the point returned by EnvelopeCenter() and a point in the geography instance in degrees.
This geography data type method supports FullGlobe instances or spatial instances that are larger than a hemisphere.
EnvelopeAngle( )
[!INCLUDEssNoVersion] return type: float
CLR return type: SqlDouble
This method returns a point in the geography instance in degrees. When used with EnvelopeCenter(), EnvelopeAngle() returns a bounding circle of a geography instance.
In [!INCLUDEssSQL11], this method has been extended to FullGlobe instances.
The hemisphere limitation applied to EnvelopeAngle() in [!INCLUDEsql2008-md] has been removed. However, for instances with angles greater than 90 degrees, 180 degrees will be returned. EnvelopeAngle() is not precise for geography instances that span more than one hemisphere.
DECLARE @g geography = 'LINESTRING(-120 45, -120 0, -90 0)';
SELECT @g.EnvelopeAngle(); Extended Methods on Geography Instances
EnvelopeCenter (geography Data Type )