rsql-servert-sqlsqlgeographydotspatial
Scale a SQL geography polygon
Is it possible to scale a SQL geography polygon like what is being done here?
Ideally I'd like to add a buffer of x meters either to the inside or outside of the original geography in SQL.
I also have DotSpatial and R available if a SQL option is not possible.
Solution
I believe the STBuffer() method does what you want. Like so:
select geo.STBuffer(5)
from dbo.myTable;
Where the input to the method will be in units that are specific to the SRID of the geography instance being operated on. If you're not sure, consult sys.spatial_reference_systems with the SRID of your data.
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