C H A P T E R 10
Modification and Simplification
In this chapter, we'll examine the methods that can be used to create new geometries by modifying existing instances of geography
or geometry
data. Such modifications include enlarging or shrinking a geometry (STBuffer()
), inverting it (ReorientObject()
), straightening its curved edges (STCurveToLine()
), or simplifying it (Reduce())
.
Each of the methods discussed in this chapter acts upon only a single instance. Some methods, such as STConvexHull()
and ReorientObject()
, require no parameters. Others require one or more parameters, such as STBuffer()
and Reduce()
. As is the case with all the spatial functionality in SQL Server, the geometry
and geography
datatypes do not necessarily have the ...
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