[mapguide-users] Re: coordinates of layer extent mapguide

Jackie Ng jumpinjackie at gmail.com
Fri Jan 7 01:31:54 EST 2011


Spatial contexts are not a reliable way to get the true extents of a given
layer especially for RDBMS providers like SQL Server, as the extents will be
static. 

Instead, you should use the SpatialExtents(<geometry property>) aggregate
function. Most providers support this function.

- Jackie
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