# STBuffer (geometry Data Type)

Returns a geometric object that represents the union of all points whose distance from a geometry instance is less than or equal to a specified value.

STBuffer() calculates a buffer in the same manner as BufferWithTolerance, specifying tolerance = distance * .001 and relative = false. The error between the theorectical and computed buffer is max(tolerance, extents * 1.E-7) where tolerance = distance * .001. For more information on extents, see geometry Data Type Method Reference.

A negative buffer removes all points within the given distance of the boundary of the geometry.

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